Update MSSMoovProcessor.cs

see also https://github.com/google/ExoPlayer/issues/9727

.github/workflows/build_latest.yml

@@ -10,7 +10,7 @@ on:
         required: false
       tag:
         type: string
-        description: 'Release version tag (e.g. v1.2.3)'
+        description: 'Release version tag (e.g. v0.2.1-beta)'
         required: true
       ref:
         type: string
@@ -19,16 +19,73 @@ on:
         default: 'main'
 
 env:
-  DOTNET_SDK_VERSION: "8.0.*"
+  DOTNET_SDK_VERSION: "9.0.*"
   ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
 
 jobs:
-  build-win-x64-arm64:
+  set-date:
+    runs-on: ubuntu-latest
+    outputs:
+      date: ${{ steps.get_date.outputs.date }}
+      tag: ${{ steps.format_tag.outputs.tag }}
+    steps:
+      - name: Get Date in UTC+8
+        id: get_date
+        run: |
+          DATE=$(date -u -d '8 hours' +'%Y%m%d')
+          echo "date=${DATE}" >> "$GITHUB_OUTPUT"
+
+      - name: Determine Tag
+        id: format_tag
+        run: |
+          if [ "${{ github.event.inputs.doRelease }}" == "true" ]; then
+            TAG="${{ github.event.inputs.tag }}"
+          else
+            TAG="actions-$GITHUB_RUN_ID"
+          fi
+          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
+
+  build-win-nt6_0-x86:
     runs-on: windows-latest
+    needs: set-date
 
     steps:
       - uses: actions/checkout@v1
 
+      - name: Install zip
+        run: choco install zip --no-progress --yes
+
+      - name: Set up dotnet
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: ${{ env.DOTNET_SDK_VERSION }}
+
+      - run: powershell -Command "(Get-Content src/N_m3u8DL-RE/N_m3u8DL-RE.csproj) -replace '<TargetFramework>.*</TargetFramework>', '<TargetFramework>net9.0-windows</TargetFramework>' | Set-Content src/N_m3u8DL-RE/N_m3u8DL-RE.csproj"
+      - run: dotnet add src/N_m3u8DL-RE/N_m3u8DL-RE.csproj package YY-Thunks --version 1.1.4
+      - run: dotnet add src/N_m3u8DL-RE/N_m3u8DL-RE.csproj package VC-LTL --version 5.1.1
+      - run: dotnet publish src/N_m3u8DL-RE -p:TargetPlatformMinVersion=6.0 -r win-x86 -c Release -o artifact-x86
+
+      - name: Package [win-x86]
+        run: |
+          cd artifact-x86
+          zip ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_win-NT6.0-x86_${{ needs.set-date.outputs.date }}.zip N_m3u8DL-RE.exe
+
+      - name: Upload Artifact[win-x86]
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: win-NT6.0-x86
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_win-NT6.0-x86_${{ needs.set-date.outputs.date }}.zip
+
+  build-win-x64-arm64:
+    runs-on: windows-latest
+    needs: set-date
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Install zip
+        run: choco install zip --no-progress --yes
+
       - name: Set up dotnet
         uses: actions/setup-dotnet@v3
         with:
@@ -37,59 +94,169 @@ jobs:
       - run: dotnet publish src/N_m3u8DL-RE -r win-x64 -c Release -o artifact-x64
       - run: dotnet publish src/N_m3u8DL-RE -r win-arm64 -c Release -o artifact-arm64
 
-      - name: Upload Artifact[win-x64]
+      - name: Package [win]
+        run: |
+          cd artifact-x64
+          zip ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_win-x64_${{ needs.set-date.outputs.date }}.zip N_m3u8DL-RE.exe
+          cd ../artifact-arm64
+          zip ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_win-arm64_${{ needs.set-date.outputs.date }}.zip N_m3u8DL-RE.exe
+
+      - name: Upload Artifact [win-x64]
         uses: actions/upload-artifact@v3.1.3
         with:
-          name: N_m3u8DL-RE_Beta_win-x64
-          path: artifact-x64\N_m3u8DL-RE.exe
+          name: win-x64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_win-x64_${{ needs.set-date.outputs.date }}.zip
 
-      - name: Upload Artifact[win-arm64]
+      - name: Upload Artifact [win-arm64]
         uses: actions/upload-artifact@v3.1.3
         with:
-          name: N_m3u8DL-RE_Beta_win-arm64
-          path: artifact-arm64\N_m3u8DL-RE.exe
+          name: win-arm64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_win-arm64_${{ needs.set-date.outputs.date }}.zip
 
-  build-linux-x64:
+  build-linux-x64-arm64:
     runs-on: ubuntu-latest
-    container: ubuntu:18.04
+    needs: set-date
 
     steps:
-      - run: apt-get update
-      - run: apt-get install -y curl wget
+      # https://learn.microsoft.com/zh-cn/dotnet/core/deploying/native-aot/cross-compile
+      - run: |
+          sudo dpkg --add-architecture arm64
+          sudo bash -c 'cat > /etc/apt/sources.list.d/arm64.list <<EOF
+          deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ jammy main restricted
+          deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ jammy-updates main restricted
+          deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ jammy-backports main restricted universe multiverse
+          EOF'
+          sudo sed -i -e 's/deb http/deb [arch=amd64] http/g' /etc/apt/sources.list
+          sudo sed -i -e 's/deb mirror/deb [arch=amd64] mirror/g' /etc/apt/sources.list
+          sudo apt-get update
+          sudo apt-get install -y curl wget libicu-dev libcurl4-openssl-dev zlib1g-dev libkrb5-dev clang llvm binutils-aarch64-linux-gnu gcc-aarch64-linux-gnu zlib1g-dev:arm64
+      
       - uses: actions/checkout@v1
       - name: Set up dotnet
         uses: actions/setup-dotnet@v3
         with:
           dotnet-version: ${{ env.DOTNET_SDK_VERSION }}
-      - run: apt-get install -y libicu-dev libcurl4-openssl-dev zlib1g-dev libkrb5-dev
+      
       - run: dotnet publish src/N_m3u8DL-RE -r linux-x64 -c Release -o artifact
+      - run: dotnet publish src/N_m3u8DL-RE -r linux-arm64 -c Release -o artifact-arm64
 
-      - name: Upload Artifact[linux-x64]
+      - name: Package [linux]
+        run: |
+          cd artifact
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-x64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+          cd ../artifact-arm64
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-arm64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+
+      - name: Upload Artifact [linux-x64]
         uses: actions/upload-artifact@v3.1.3
         with:
-          name: N_m3u8DL-RE_Beta_linux-x64
-          path: artifact/N_m3u8DL-RE
-
-  build-linux-arm64:
-    runs-on: ubuntu-latest
-    container: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-18.04-cross-arm64-20220312201346-b2c2436
-
-    steps:
-      - uses: actions/checkout@v1
-      - name: Set up dotnet
-        uses: actions/setup-dotnet@v3
-        with:
-          dotnet-version: ${{ env.DOTNET_SDK_VERSION }}
-      - run: dotnet publish src/N_m3u8DL-RE -r linux-arm64 -c Release -p:StripSymbols=true -p:CppCompilerAndLinker=clang-9 -p:SysRoot=/crossrootfs/arm64 -o artifact
+          name: linux-x64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-x64_${{ needs.set-date.outputs.date }}.tar.gz
 
       - name: Upload Artifact[linux-arm64]
         uses: actions/upload-artifact@v3.1.3
         with:
-          name: N_m3u8DL-RE_Beta_linux-arm64
-          path: artifact/N_m3u8DL-RE
+          name: linux-arm64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-arm64_${{ needs.set-date.outputs.date }}.tar.gz
+
+  build-android-bionic-x64-arm64:
+    runs-on: windows-latest
+    needs: set-date
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Set up NDK
+        shell: pwsh
+        run: |
+          Invoke-WebRequest -Uri "https://dl.google.com/android/repository/android-ndk-r27c-windows.zip" -OutFile "android-ndk.zip"
+          Expand-Archive -Path "android-ndk.zip" -DestinationPath "./android-ndk"
+          Get-ChildItem -Path "./android-ndk"
+          $ndkRoot = "${{ github.workspace }}\android-ndk\android-ndk-r27c"
+          echo "NDK_ROOT=$ndkRoot" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8
+          $ndkBinPath = "$ndkRoot\toolchains\llvm\prebuilt\windows-x86_64\bin"
+          echo $ndkBinPath | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8
+
+      - name: Set up dotnet
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: ${{ env.DOTNET_SDK_VERSION }}
+      
+      - run: dotnet publish src/N_m3u8DL-RE -r linux-bionic-x64 -p:DisableUnsupportedError=true -p:PublishAotUsingRuntimePack=true -o artifact
+      - run: dotnet publish src/N_m3u8DL-RE -r linux-bionic-arm64 -p:DisableUnsupportedError=true -p:PublishAotUsingRuntimePack=true -o artifact-arm64
+
+      - name: Package [linux-bionic]
+        run: |
+          cd artifact
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_android-bionic-x64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+          cd ../artifact-arm64
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_android-bionic-arm64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+
+      - name: Upload Artifact [linux-bionic-x64]
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: android-bionic-x64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_android-bionic-x64_${{ needs.set-date.outputs.date }}.tar.gz
+
+      - name: Upload Artifact[linux-bionic-arm64]
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: android-bionic-arm64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_android-bionic-arm64_${{ needs.set-date.outputs.date }}.tar.gz
+
+  build-linux-musl-x64:
+    runs-on: ubuntu-latest
+    needs: set-date
+    container: mcr.microsoft.com/dotnet/sdk:9.0-alpine-amd64
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - run: apk add clang build-base zlib-dev
+      - run: dotnet publish src/N_m3u8DL-RE -r linux-musl-x64 -c Release -o artifact -p:InvariantGlobalization=true
+
+      - name: Package [linux-musl-x64]
+        run: |
+          cd artifact
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-musl-x64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+
+      - name: Upload Artifact [linux-musl-x64]
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: linux-musl-x64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-musl-x64_${{ needs.set-date.outputs.date }}.tar.gz
+
+  build-linux-musl-arm64:
+    runs-on: ubuntu-latest
+    needs: set-date
+    container: mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-cross-arm64-alpine
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Set up dotnet
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: ${{ env.DOTNET_SDK_VERSION }}
+
+      - run: apt-get update
+      - run: apt-get install -y build-essential clang binutils-aarch64-linux-gnu
+      - run: dotnet publish src/N_m3u8DL-RE -r linux-musl-arm64 -c Release -o artifact -p:CppCompilerAndLinker=clang -p:SysRoot=/crossrootfs/arm64 -p:InvariantGlobalization=true
+
+      - name: Package [linux-musl-arm64]
+        run: |
+          cd artifact
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-musl-arm64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+
+      - name: Upload Artifact [linux-musl-arm64]
+        uses: actions/upload-artifact@v3.1.3
+        with:
+          name: linux-musl-arm64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_linux-musl-arm64_${{ needs.set-date.outputs.date }}.tar.gz
 
   build-mac-x64-arm64:
     runs-on: macos-latest
+    needs: set-date
 
     steps:
       - uses: actions/checkout@v1
@@ -101,83 +268,44 @@ jobs:
       - run: dotnet publish src/N_m3u8DL-RE -r osx-arm64 -c Release -o artifact-arm64 
       - run: dotnet publish src/N_m3u8DL-RE -r osx-x64 -c Release -o artifact-x64 
 
-      - name: Upload Artifact[osx-x64]
+      - name: Package [osx]
+        run: |
+          cd artifact-x64
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_osx-x64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+          cd ../artifact-arm64
+          tar -czvf ../N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_osx-arm64_${{ needs.set-date.outputs.date }}.tar.gz N_m3u8DL-RE
+
+      - name: Upload Artifact [osx-x64]
         uses: actions/upload-artifact@v3.1.3
         with:
-          name: N_m3u8DL-RE_Beta_osx-x64
-          path: artifact-x64/N_m3u8DL-RE
+          name: osx-x64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_osx-x64_${{ needs.set-date.outputs.date }}.tar.gz
+
       - name: Upload Artifact[osx-arm64]
         uses: actions/upload-artifact@v3.1.3
         with:
-          name: N_m3u8DL-RE_Beta_osx-arm64
-          path: artifact-arm64/N_m3u8DL-RE
+          name: osx-arm64
+          path: N_m3u8DL-RE_${{ needs.set-date.outputs.tag }}_osx-arm64_${{ needs.set-date.outputs.date }}.tar.gz
 
-  create_draft_release:
-    name: Create Github draft release
-    if: ${{ github.event.inputs.doRelease == 'true' }}
-    needs: [build-win-x64-arm64,build-linux-x64,build-linux-arm64,build-mac-x64-arm64]
+  create_release:
+    name: Create release
     runs-on: ubuntu-latest
-    steps:
-      - name: Audit gh version
-        run: gh --version
-
-      - name: Check for existing release
-        id: check_release
-        run: |
-          echo "::echo::on"
-          gh release view --repo '${{ github.repository }}' '${{ github.event.inputs.tag }}' \
-            && echo "already_exists=true" >> $GITHUB_ENV \
-            || echo "already_exists=false" >> $GITHUB_ENV
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Checkout repo
-        if: env.already_exists == 'false'
-        uses: actions/checkout@v3
-        with:
-          ref: '${{ github.event.inputs.ref }}'
-
-      - name: Create release
-        if: env.already_exists == 'false'
-        run: >
-          gh release create
-          '${{ github.event.inputs.tag }}'
-          --draft
-          --repo '${{ github.repository }}'
-          --title '${{ github.event.inputs.tag }}'
-          --target '${{ github.event.inputs.ref }}'
-          --generate-notes
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-  attach_to_release:
-    name: Attach native executables to release
+    permissions:
+      contents: write
     if: ${{ github.event.inputs.doRelease == 'true' }}
-    needs: create_draft_release
-    runs-on: ubuntu-latest
+    needs: [set-date,build-win-nt6_0-x86,build-win-x64-arm64,build-linux-x64-arm64,build-android-bionic-x64-arm64,build-linux-musl-x64,build-linux-musl-arm64,build-mac-x64-arm64]
+    
     steps:
-      - name: Get current date
-        id: date
-        run: echo "date=$(date +'%Y%m%d')" >> $GITHUB_ENV
-        
-      - name: GH version
-        run: gh --version
-      
-      - name: Fetch executables
+      - name: Fetch artifacts
         uses: actions/download-artifact@v3
 
-      - name: Tar (linux, macOS)
-        run: for dir in *{osx,linux}*; do tar cvzfp "${dir}_${{ env.date }}.tar.gz" "$dir"; done
-        
-      - name: Zip (windows)
-        run: for dir in *win*; do zip -r "${dir}_${{ env.date }}.zip" "$dir"; done
-
-      - name: Upload
-        run: |
-          until gh release upload --clobber --repo ${{ github.repository }} ${{ github.event.inputs.tag }} *.zip *.tar.gz; do
-            echo "Attempt $((++attempts)) to upload release artifacts failed. Will retry in 20s"
-            sleep 20
-          done
-        timeout-minutes: 10
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create GitHub Release
+        uses: ncipollo/release-action@v1
+        with:
+          tag: ${{ github.event.inputs.tag }}
+          name: N_m3u8DL-RE_${{ github.event.inputs.tag }}
+          artifacts: "android-bionic-x64/*,android-bionic-arm64/*,linux-x64/*,linux-arm64/*,linux-musl-x64/*,linux-musl-arm64/*,osx-x64/*,osx-arm64/*,win-x64/*,win-arm64/*,win-NT6.0-x86/*"
+          draft: false
+          allowUpdates: true
+          generateReleaseNotes: true
+          discussionCategory: 'Announcements'

README.md

@@ -25,7 +25,7 @@ yay -Syu n-m3u8dl-re-git
 # 命令行参数
 ```
 Description:
-  N_m3u8DL-RE (Beta version) 20240630
+  N_m3u8DL-RE (Beta version) 20241201
 
 Usage:
   N_m3u8DL-RE <input> [options]
@@ -34,69 +34,73 @@ Arguments:
   <input>  链接或文件
 
 Options:
-  --tmp-dir <tmp-dir>                      设置临时文件存储目录
-  --save-dir <save-dir>                    设置输出目录
-  --save-name <save-name>                  设置保存文件名
-  --base-url <base-url>                    设置BaseURL
-  --thread-count <number>                  设置下载线程数 [default: 本机CPU线程数]
-  --download-retry-count <number>          每个分片下载异常时的重试次数 [default: 3]
-  --force-ansi-console                     强制认定终端为支持ANSI且可交互的终端
-  --no-ansi-color                          去除ANSI颜色
-  --auto-select                            自动选择所有类型的最佳轨道 [default: False]
-  --skip-merge                             跳过合并分片 [default: False]
-  --skip-download                          跳过下载 [default: False]
-  --check-segments-count                   检测实际下载的分片数量和预期数量是否匹配 [default: True]
-  --binary-merge                           二进制合并 [default: False]
-  --use-ffmpeg-concat-demuxer              使用 ffmpeg 合并时，使用 concat 分离器而非 concat 协议 [default: False]
-  --del-after-done                         完成后删除临时文件 [default: True]
-  --no-date-info                           混流时不写入日期信息 [default: False]
-  --no-log                                 关闭日志文件输出 [default: False]
-  --write-meta-json                        解析后的信息是否输出json文件 [default: True]
-  --append-url-params                      将输入Url的Params添加至分片, 对某些网站很有用, 例如 kakao.com [default: False]
-  -mt, --concurrent-download               并发下载已选择的音频、视频和字幕 [default: False]
-  -H, --header <header>                    为HTTP请求设置特定的请求头, 例如:
-                                           -H "Cookie: mycookie" -H "User-Agent: iOS"
-  --sub-only                               只选取字幕轨道 [default: False]
-  --sub-format <SRT|VTT>                   字幕输出类型 [default: SRT]
-  --auto-subtitle-fix                      自动修正字幕 [default: True]
-  --ffmpeg-binary-path <PATH>              ffmpeg可执行程序全路径, 例如 C:\Tools\ffmpeg.exe
-  --log-level <DEBUG|ERROR|INFO|OFF|WARN>  设置日志级别 [default: INFO]
-  --ui-language <en-US|zh-CN|zh-TW>        设置UI语言
-  --urlprocessor-args <urlprocessor-args>  此字符串将直接传递给URL Processor
-  --key <key>                              设置解密密钥, 程序调用mp4decrpyt/shaka-packager进行解密. 格式:
-                                           --key KID1:KEY1 --key KID2:KEY2
-  --key-text-file <key-text-file>          设置密钥文件,程序将从文件中按KID搜寻KEY以解密.(不建议使用特大文件)
-  --decryption-binary-path <PATH>          MP4解密所用工具的全路径, 例如 C:\Tools\mp4decrypt.exe
-  --use-shaka-packager                     解密时使用shaka-packager替代mp4decrypt [default: False]
-  --mp4-real-time-decryption               实时解密MP4分片 [default: False]
-  -R, --max-speed <SPEED>                  设置限速，单位支持 Mbps 或 Kbps，如：15M 100K
-  -M, --mux-after-done <OPTIONS>           所有工作完成时尝试混流分离的音视频. 输入 "--morehelp mux-after-done" 以查看详细信息
-  --custom-hls-method <METHOD>             指定HLS加密方式 (AES_128|AES_128_ECB|CENC|CHACHA20|NONE|SAMPLE_AES|SAMPLE_AES_CTR|UNKNOWN)
-  --custom-hls-key <FILE|HEX|BASE64>       指定HLS解密KEY. 可以是文件, HEX或Base64
-  --custom-hls-iv <FILE|HEX|BASE64>        指定HLS解密IV. 可以是文件, HEX或Base64
-  --use-system-proxy                       使用系统默认代理 [default: True]
-  --custom-proxy <URL>                     设置请求代理, 如 http://127.0.0.1:8888
-  --custom-range <RANGE>                   仅下载部分分片. 输入 "--morehelp custom-range" 以查看详细信息
-  --task-start-at <yyyyMMddHHmmss>         在此时间之前不会开始执行任务
-  --live-perform-as-vod                    以点播方式下载直播流 [default: False]
-  --live-real-time-merge                   录制直播时实时合并 [default: False]
-  --live-keep-segments                     录制直播并开启实时合并时依然保留分片 [default: True]
-  --live-pipe-mux                          录制直播并开启实时合并时通过管道+ffmpeg实时混流到TS文件 [default: False]
-  --live-fix-vtt-by-audio                  通过读取音频文件的起始时间修正VTT字幕 [default: False]
-  --live-record-limit <HH:mm:ss>           录制直播时的录制时长限制
-  --live-wait-time <SEC>                   手动设置直播列表刷新间隔
-  --live-take-count <NUM>                  手动设置录制直播时首次获取分片的数量 [default: 16]
-  --mux-import <OPTIONS>                   混流时引入外部媒体文件. 输入 "--morehelp mux-import" 以查看详细信息
-  -sv, --select-video <OPTIONS>            通过正则表达式选择符合要求的视频流. 输入 "--morehelp select-video" 以查看详细信息
-  -sa, --select-audio <OPTIONS>            通过正则表达式选择符合要求的音频流. 输入 "--morehelp select-audio" 以查看详细信息
-  -ss, --select-subtitle <OPTIONS>         通过正则表达式选择符合要求的字幕流. 输入 "--morehelp select-subtitle" 以查看详细信息
-  -dv, --drop-video <OPTIONS>              通过正则表达式去除符合要求的视频流.
-  -da, --drop-audio <OPTIONS>              通过正则表达式去除符合要求的音频流.
-  -ds, --drop-subtitle <OPTIONS>           通过正则表达式去除符合要求的字幕流.
-  --ad-keyword <REG>                       设置广告分片的URL关键字(正则表达式)
-  --morehelp <OPTION>                      查看某个选项的详细帮助信息
-  --version                                Show version information
-  -?, -h, --help                           Show help and usage information
+  --tmp-dir <tmp-dir>                                     设置临时文件存储目录
+  --save-dir <save-dir>                                   设置输出目录
+  --save-name <save-name>                                 设置保存文件名
+  --base-url <base-url>                                   设置BaseURL
+  --thread-count <number>                                 设置下载线程数 [default: 本机CPU线程数]
+  --download-retry-count <number>                         每个分片下载异常时的重试次数 [default: 3]
+  --http-request-timeout <seconds>                        HTTP请求的超时时间(秒) [default: 100]
+  --force-ansi-console                                    强制认定终端为支持ANSI且可交互的终端
+  --no-ansi-color                                         去除ANSI颜色
+  --auto-select                                           自动选择所有类型的最佳轨道 [default: False]
+  --skip-merge                                            跳过合并分片 [default: False]
+  --skip-download                                         跳过下载 [default: False]
+  --check-segments-count                                  检测实际下载的分片数量和预期数量是否匹配 [default: True]
+  --binary-merge                                          二进制合并 [default: False]
+  --use-ffmpeg-concat-demuxer                             使用 ffmpeg 合并时，使用 concat 分离器而非 concat 协议 [default: False]
+  --del-after-done                                        完成后删除临时文件 [default: True]
+  --no-date-info                                          混流时不写入日期信息 [default: False]
+  --no-log                                                关闭日志文件输出 [default: False]
+  --write-meta-json                                       解析后的信息是否输出json文件 [default: True]
+  --append-url-params                                     将输入Url的Params添加至分片, 对某些网站很有用, 例如 kakao.com [default: False]
+  -mt, --concurrent-download                              并发下载已选择的音频、视频和字幕 [default: False]
+  -H, --header <header>                                   为HTTP请求设置特定的请求头, 例如:
+                                                          -H "Cookie: mycookie" -H "User-Agent: iOS"
+  --sub-only                                              只选取字幕轨道 [default: False]
+  --sub-format <SRT|VTT>                                  字幕输出类型 [default: SRT]
+  --auto-subtitle-fix                                     自动修正字幕 [default: True]
+  --ffmpeg-binary-path <PATH>                             ffmpeg可执行程序全路径, 例如 C:\Tools\ffmpeg.exe
+  --log-level <DEBUG|ERROR|INFO|OFF|WARN>                 设置日志级别 [default: INFO]
+  --ui-language <en-US|zh-CN|zh-TW>                       设置UI语言
+  --urlprocessor-args <urlprocessor-args>                 此字符串将直接传递给URL Processor
+  --key <key>                                             设置解密密钥, 程序调用mp4decrpyt/shaka-packager/ffmpeg进行解密. 格式:
+                                                          --key KID1:KEY1 --key KID2:KEY2
+                                                          对于KEY相同的情况可以直接输入 --key KEY
+  --key-text-file <key-text-file>                         设置密钥文件,程序将从文件中按KID搜寻KEY以解密.(不建议使用特大文件)
+  --decryption-engine <FFMPEG|MP4DECRYPT|SHAKA_PACKAGER>  设置解密时使用的第三方程序 [default: MP4DECRYPT]
+  --decryption-binary-path <PATH>                         MP4解密所用工具的全路径, 例如 C:\Tools\mp4decrypt.exe
+  --mp4-real-time-decryption                              实时解密MP4分片 [default: False]
+  -R, --max-speed <SPEED>                                 设置限速，单位支持 Mbps 或 Kbps，如：15M 100K
+  -M, --mux-after-done <OPTIONS>                          所有工作完成时尝试混流分离的音视频. 输入 "--morehelp mux-after-done" 以查看详细信息
+  --custom-hls-method <METHOD>                            指定HLS加密方式 (AES_128|AES_128_ECB|CENC|CHACHA20|NONE|SAMPLE_AES|SAMPLE_AES_CTR|UNKNOWN)
+  --custom-hls-key <FILE|HEX|BASE64>                      指定HLS解密KEY. 可以是文件, HEX或Base64
+  --custom-hls-iv <FILE|HEX|BASE64>                       指定HLS解密IV. 可以是文件, HEX或Base64
+  --use-system-proxy                                      使用系统默认代理 [default: True]
+  --custom-proxy <URL>                                    设置请求代理, 如 http://127.0.0.1:8888
+  --custom-range <RANGE>                                  仅下载部分分片. 输入 "--morehelp custom-range" 以查看详细信息
+  --task-start-at <yyyyMMddHHmmss>                        在此时间之前不会开始执行任务
+  --live-perform-as-vod                                   以点播方式下载直播流 [default: False]
+  --live-real-time-merge                                  录制直播时实时合并 [default: False]
+  --live-keep-segments                                    录制直播并开启实时合并时依然保留分片 [default: True]
+  --live-pipe-mux                                         录制直播并开启实时合并时通过管道+ffmpeg实时混流到TS文件 [default: False]
+  --live-fix-vtt-by-audio                                 通过读取音频文件的起始时间修正VTT字幕 [default: False]
+  --live-record-limit <HH:mm:ss>                          录制直播时的录制时长限制
+  --live-wait-time <SEC>                                  手动设置直播列表刷新间隔
+  --live-take-count <NUM>                                 手动设置录制直播时首次获取分片的数量 [default: 16]
+  --mux-import <OPTIONS>                                  混流时引入外部媒体文件. 输入 "--morehelp mux-import" 以查看详细信息
+  -sv, --select-video <OPTIONS>                           通过正则表达式选择符合要求的视频流. 输入 "--morehelp select-video" 以查看详细信息
+  -sa, --select-audio <OPTIONS>                           通过正则表达式选择符合要求的音频流. 输入 "--morehelp select-audio" 以查看详细信息
+  -ss, --select-subtitle <OPTIONS>                        通过正则表达式选择符合要求的字幕流. 输入 "--morehelp select-subtitle" 以查看详细信息
+  -dv, --drop-video <OPTIONS>                             通过正则表达式去除符合要求的视频流.
+  -da, --drop-audio <OPTIONS>                             通过正则表达式去除符合要求的音频流.
+  -ds, --drop-subtitle <OPTIONS>                          通过正则表达式去除符合要求的字幕流.
+  --ad-keyword <REG>                                      设置广告分片的URL关键字(正则表达式)
+  --disable-update-check                                  禁用版本更新检测 [default: False]
+  --allow-hls-multi-ext-map                               允许HLS中的多个#EXT-X-MAP(实验性) [default: False]
+  --morehelp <OPTION>                                     查看某个选项的详细帮助信息
+  --version                                               Show version information
+  -?, -h, --help                                          Show help and usage information
 ```
 
 <details>

src/N_m3u8DL-RE.Common/Entity/EncryptInfo.cs

@@ -1,43 +1,34 @@
 using N_m3u8DL_RE.Common.Enum;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Common.Entity
+namespace N_m3u8DL_RE.Common.Entity;
+
+public class EncryptInfo
 {
-    public class EncryptInfo
+    /// <summary>
+    /// 加密方式，默认无加密
+    /// </summary>
+    public EncryptMethod Method { get; set; } = EncryptMethod.NONE;
+
+    public byte[]? Key { get; set; }
+    public byte[]? IV { get; set; }
+
+    public EncryptInfo() { }
+
+    /// <summary>
+    /// 创建EncryptInfo并尝试自动解析Method
+    /// </summary>
+    /// <param name="method"></param>
+    public EncryptInfo(string method)
     {
-        /// <summary>
-        /// 加密方式，默认无加密
-        /// </summary>
-        public EncryptMethod Method { get; set; } = EncryptMethod.NONE;
+        Method = ParseMethod(method);
+    }
 
-        public byte[]? Key { get; set; }
-        public byte[]? IV { get; set; }
-
-        public EncryptInfo() { }
-
-        /// <summary>
-        /// 创建EncryptInfo并尝试自动解析Method
-        /// </summary>
-        /// <param name="method"></param>
-        public EncryptInfo(string method)
+    public static EncryptMethod ParseMethod(string? method)
+    {
+        if (method != null && System.Enum.TryParse(method.Replace("-", "_"), out EncryptMethod m))
         {
-            Method = ParseMethod(method);
-        }
-
-        public static EncryptMethod ParseMethod(string? method)
-        {
-            if (method != null && System.Enum.TryParse(method.Replace("-", "_"), out EncryptMethod m))
-            {
-                return m;
-            }
-            else
-            {
-                return EncryptMethod.UNKNOWN;
-            }
+            return m;
         }
+        return EncryptMethod.UNKNOWN;
     }
 }

src/N_m3u8DL-RE.Common/Entity/MSSData.cs

@@ -1,25 +1,18 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Entity;
 
-namespace N_m3u8DL_RE.Common.Entity
+public class MSSData
 {
-    public class MSSData
-    {
-        public string FourCC { get; set; } = "";
-        public string CodecPrivateData { get; set; } = "";
-        public string Type { get; set; } = "";
-        public int Timesacle { get; set; }
-        public int SamplingRate { get; set; }
-        public int Channels { get; set; }
-        public int BitsPerSample { get; set; }
-        public int NalUnitLengthField { get; set; }
-        public long Duration { get; set; }
+    public string FourCC { get; set; } = "";
+    public string CodecPrivateData { get; set; } = "";
+    public string Type { get; set; } = "";
+    public int Timesacle { get; set; }
+    public int SamplingRate { get; set; }
+    public int Channels { get; set; }
+    public int BitsPerSample { get; set; }
+    public int NalUnitLengthField { get; set; }
+    public long Duration { get; set; }
 
-        public bool IsProtection { get; set; } = false;
-        public string ProtectionSystemID { get; set; } = "";
-        public string ProtectionData { get; set; } = "";
-    }
+    public bool IsProtection { get; set; } = false;
+    public string ProtectionSystemID { get; set; } = "";
+    public string ProtectionData { get; set; } = "";
 }

src/N_m3u8DL-RE.Common/Entity/MediaPart.cs

@@ -1,14 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Entity;
 
-namespace N_m3u8DL_RE.Common.Entity
+// 主要处理 EXT-X-DISCONTINUITY
+public class MediaPart
 {
-    //主要处理 EXT-X-DISCONTINUITY
-    public class MediaPart
-    {
-        public List<MediaSegment> MediaSegments { get; set; } = new List<MediaSegment>();
-    }
+    public List<MediaSegment> MediaSegments { get; set; } = [];
 }

src/N_m3u8DL-RE.Common/Entity/MediaSegment.cs

@@ -1,43 +1,40 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using N_m3u8DL_RE.Common.Enum;
 
-namespace N_m3u8DL_RE.Common.Entity
+namespace N_m3u8DL_RE.Common.Entity;
+
+public class MediaSegment
 {
-    public class MediaSegment
+    public long Index { get; set; }
+    public double Duration { get; set; }
+    public string? Title { get; set; }
+    public DateTime? DateTime { get; set; }
+
+    public long? StartRange { get; set; }
+    public long? StopRange => (StartRange != null && ExpectLength != null) ? StartRange + ExpectLength - 1 : null;
+    public long? ExpectLength { get; set; }
+
+    public EncryptInfo EncryptInfo { get; set; } = new();
+    
+    public bool IsEncrypted => EncryptInfo.Method != EncryptMethod.NONE;
+
+    public string Url { get; set; } = string.Empty;
+
+    public string? NameFromVar { get; set; } // MPD分段文件名
+
+    public override bool Equals(object? obj)
     {
-        public long Index { get; set; }
-        public double Duration { get; set; }
-        public string? Title { get; set; }
-        public DateTime? DateTime { get; set; }
+        return obj is MediaSegment segment &&
+               Index == segment.Index &&
+               Math.Abs(Duration - segment.Duration) < 0.001 &&
+               Title == segment.Title &&
+               StartRange == segment.StartRange &&
+               StopRange == segment.StopRange &&
+               ExpectLength == segment.ExpectLength &&
+               Url == segment.Url;
+    }
 
-        public long? StartRange { get; set; }
-        public long? StopRange { get => (StartRange != null && ExpectLength != null) ? StartRange + ExpectLength - 1 : null; }
-        public long? ExpectLength { get; set; }
-
-        public EncryptInfo EncryptInfo { get; set; } = new EncryptInfo();
-
-        public string Url { get; set; }
-
-        public string? NameFromVar { get; set; } //MPD分段文件名
-
-        public override bool Equals(object? obj)
-        {
-            return obj is MediaSegment segment &&
-                   Index == segment.Index &&
-                   Duration == segment.Duration &&
-                   Title == segment.Title &&
-                   StartRange == segment.StartRange &&
-                   StopRange == segment.StopRange &&
-                   ExpectLength == segment.ExpectLength &&
-                   Url == segment.Url;
-        }
-
-        public override int GetHashCode()
-        {
-            return HashCode.Combine(Index, Duration, Title, StartRange, StopRange, ExpectLength, Url);
-        }
+    public override int GetHashCode()
+    {
+        return HashCode.Combine(Index, Duration, Title, StartRange, StopRange, ExpectLength, Url);
     }
 }

src/N_m3u8DL-RE.Common/Entity/Playlist.cs

@@ -1,27 +1,20 @@
-using N_m3u8DL_RE.Common.Enum;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Entity;
 
-namespace N_m3u8DL_RE.Common.Entity
+public class Playlist
 {
-    public class Playlist
-    {
-        //对应Url信息
-        public string Url { get; set; }
-        //是否直播
-        public bool IsLive { get; set; } = false;
-        //直播刷新间隔毫秒（默认15秒）
-        public double RefreshIntervalMs { get; set; } = 15000;
-        //所有分片时长总和
-        public double TotalDuration { get => MediaParts.Sum(x => x.MediaSegments.Sum(m => m.Duration)); }
-        //所有分片中最长时长
-        public double? TargetDuration { get; set; }
-        //INIT信息
-        public MediaSegment? MediaInit { get; set; }
-        //分片信息
-        public List<MediaPart> MediaParts { get; set; } = new List<MediaPart>();
-    }
+    // 对应Url信息
+    public string Url { get; set; } = string.Empty;
+    // 是否直播
+    public bool IsLive { get; set; } = false;
+    // 直播刷新间隔毫秒（默认15秒）
+    public double RefreshIntervalMs { get; set; } = 15000;
+    // 所有分片时长总和
+    public double TotalDuration => MediaParts.Sum(x => x.MediaSegments.Sum(m => m.Duration));
+
+    // 所有分片中最长时长
+    public double? TargetDuration { get; set; }
+    // INIT信息
+    public MediaSegment? MediaInit { get; set; }
+    // 分片信息
+    public List<MediaPart> MediaParts { get; set; } = [];
 }

src/N_m3u8DL-RE.Common/Entity/StreamSpec.cs

@@ -1,188 +1,182 @@
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Common.Util;
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Common.Entity
+namespace N_m3u8DL_RE.Common.Entity;
+
+public class StreamSpec
 {
-    public class StreamSpec
+    public MediaType? MediaType { get; set; }
+    public string? GroupId { get; set; }
+    public string? Language { get; set; }
+    public string? Name { get; set; }
+    public Choise? Default { get; set; }
+
+    // 由于用户选择 被跳过的分片总时长
+    public double? SkippedDuration { get; set; }
+
+    // MSS信息
+    public MSSData? MSSData { get; set; }
+
+    // 基本信息
+    public int? Bandwidth { get; set; }
+    public string? Codecs { get; set; }
+    public string? Resolution { get; set; }
+    public double? FrameRate { get; set; }
+    public string? Channels { get; set; }
+    public string? Extension { get; set; }
+
+    // Dash
+    public RoleType? Role { get; set; }
+
+    // 补充信息-色域
+    public string? VideoRange { get; set; }
+    // 补充信息-特征
+    public string? Characteristics { get; set; }
+    // 发布时间（仅MPD需要）
+    public DateTime? PublishTime { get; set; }
+
+    // 外部轨道GroupId (后续寻找对应轨道信息)
+    public string? AudioId { get; set; }
+    public string? VideoId { get; set; }
+    public string? SubtitleId { get; set; }
+
+    public string? PeriodId { get; set; }
+
+    /// <summary>
+    /// URL
+    /// </summary>
+    public string Url { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 原始URL
+    /// </summary>
+    public string OriginalUrl { get; set; } = string.Empty;
+
+    public Playlist? Playlist { get; set; }
+
+    public int SegmentsCount
     {
-        public MediaType? MediaType { get; set; }
-        public string? GroupId { get; set; }
-        public string? Language { get; set; }
-        public string? Name { get; set; }
-        public Choise? Default { get; set; }
-
-        //由于用户选择 被跳过的分片总时长
-        public double? SkippedDuration { get; set; }
-
-        //MSS信息
-        public MSSData? MSSData { get; set; }
-
-        //基本信息
-        public int? Bandwidth { get; set; }
-        public string? Codecs { get; set; }
-        public string? Resolution { get; set; }
-        public double? FrameRate { get; set; }
-        public string? Channels { get; set; }
-        public string? Extension { get; set; }
-
-        //Dash
-        public RoleType? Role { get; set; }
-
-        //补充信息-色域
-        public string? VideoRange { get; set; }
-        //补充信息-特征
-        public string? Characteristics { get; set; }
-        //发布时间（仅MPD需要）
-        public DateTime? PublishTime { get; set; }
-
-        //外部轨道GroupId (后续寻找对应轨道信息)
-        public string? AudioId { get; set; }
-        public string? VideoId { get; set; }
-        public string? SubtitleId { get; set; }
-
-        public string? PeriodId { get; set; }
-
-        /// <summary>
-        /// URL
-        /// </summary>
-        public string Url { get; set; }
-
-        /// <summary>
-        /// 原始URL
-        /// </summary>
-        public string OriginalUrl { get; set; }
-
-        public Playlist? Playlist { get; set; }
-
-        public int SegmentsCount
+        get
         {
-            get
-            {
-                return Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) : 0;
-            }
-        }
-
-        public string ToShortString()
-        {
-            var prefixStr = "";
-            var returnStr = "";
-            var encStr = string.Empty;
-
-            if (MediaType == Enum.MediaType.AUDIO)
-            {
-                prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
-                var d = $"{GroupId} | {(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Codecs} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-            else if (MediaType == Enum.MediaType.SUBTITLES)
-            {
-                prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
-                var d = $"{GroupId} | {Language} | {Name} | {Codecs} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-            else
-            {
-                prefixStr = $"[aqua]Vid[/] {encStr}";
-                var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {GroupId} | {FrameRate} | {Codecs} | {VideoRange} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-
-            returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
-            while (returnStr.Contains("|  |"))
-            {
-                returnStr = returnStr.Replace("|  |", "|");
-            }
-
-            return returnStr.TrimEnd().TrimEnd('|').TrimEnd();
-        }
-
-        public string ToShortShortString()
-        {
-            var prefixStr = "";
-            var returnStr = "";
-            var encStr = string.Empty;
-
-            if (MediaType == Enum.MediaType.AUDIO)
-            {
-                prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
-                var d = $"{(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-            else if (MediaType == Enum.MediaType.SUBTITLES)
-            {
-                prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
-                var d = $"{Language} | {Name} | {Codecs} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-            else
-            {
-                prefixStr = $"[aqua]Vid[/] {encStr}";
-                var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {FrameRate} | {VideoRange} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-
-            returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
-            while (returnStr.Contains("|  |"))
-            {
-                returnStr = returnStr.Replace("|  |", "|");
-            }
-
-            return returnStr.TrimEnd().TrimEnd('|').TrimEnd();
-        }
-
-        public override string ToString()
-        {
-            var prefixStr = "";
-            var returnStr = "";
-            var encStr = string.Empty;
-            var segmentsCountStr = SegmentsCount == 0 ? "" : (SegmentsCount > 1 ? $"{SegmentsCount} Segments" : $"{SegmentsCount} Segment");
-
-            //增加加密标志
-            if (Playlist != null && Playlist.MediaParts.Any(m => m.MediaSegments.Any(s => s.EncryptInfo.Method != EncryptMethod.NONE)))
-            {
-                var ms = Playlist.MediaParts.SelectMany(m => m.MediaSegments.Select(s => s.EncryptInfo.Method)).Where(e => e != EncryptMethod.NONE).Distinct();
-                encStr = $"[red]*{string.Join(",", ms).EscapeMarkup()}[/] ";
-            }
-
-            if (MediaType == Enum.MediaType.AUDIO)
-            {
-                prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
-                var d = $"{GroupId} | {(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Codecs} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {segmentsCountStr} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-            else if (MediaType == Enum.MediaType.SUBTITLES)
-            {
-                prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
-                var d = $"{GroupId} | {Language} | {Name} | {Codecs} | {Characteristics} | {segmentsCountStr} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-            else
-            {
-                prefixStr = $"[aqua]Vid[/] {encStr}";
-                var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {GroupId} | {FrameRate} | {Codecs} | {VideoRange} | {segmentsCountStr} | {Role}";
-                returnStr = d.EscapeMarkup();
-            }
-
-            returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
-            while (returnStr.Contains("|  |"))
-            {
-                returnStr = returnStr.Replace("|  |", "|");
-            }
-
-            //计算时长
-            if (Playlist != null)
-            {
-                var total = Playlist.TotalDuration;
-                returnStr += " | ~" + GlobalUtil.FormatTime((int)total);
-            }
-
-            return returnStr.TrimEnd().TrimEnd('|').TrimEnd();
+            return Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) : 0;
         }
     }
+
+    public string ToShortString()
+    {
+        var prefixStr = "";
+        var returnStr = "";
+        var encStr = string.Empty;
+
+        if (MediaType == Enum.MediaType.AUDIO)
+        {
+            prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
+            var d = $"{GroupId} | {(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Codecs} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+        else if (MediaType == Enum.MediaType.SUBTITLES)
+        {
+            prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
+            var d = $"{GroupId} | {Language} | {Name} | {Codecs} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+        else
+        {
+            prefixStr = $"[aqua]Vid[/] {encStr}";
+            var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {GroupId} | {FrameRate} | {Codecs} | {VideoRange} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+
+        returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
+        while (returnStr.Contains("|  |"))
+        {
+            returnStr = returnStr.Replace("|  |", "|");
+        }
+
+        return returnStr.TrimEnd().TrimEnd('|').TrimEnd();
+    }
+
+    public string ToShortShortString()
+    {
+        var prefixStr = "";
+        var returnStr = "";
+        var encStr = string.Empty;
+
+        if (MediaType == Enum.MediaType.AUDIO)
+        {
+            prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
+            var d = $"{(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+        else if (MediaType == Enum.MediaType.SUBTITLES)
+        {
+            prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
+            var d = $"{Language} | {Name} | {Codecs} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+        else
+        {
+            prefixStr = $"[aqua]Vid[/] {encStr}";
+            var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {FrameRate} | {VideoRange} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+
+        returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
+        while (returnStr.Contains("|  |"))
+        {
+            returnStr = returnStr.Replace("|  |", "|");
+        }
+
+        return returnStr.TrimEnd().TrimEnd('|').TrimEnd();
+    }
+
+    public override string ToString()
+    {
+        var prefixStr = "";
+        var returnStr = "";
+        var encStr = string.Empty;
+        var segmentsCountStr = SegmentsCount == 0 ? "" : (SegmentsCount > 1 ? $"{SegmentsCount} Segments" : $"{SegmentsCount} Segment");
+
+        // 增加加密标志
+        if (Playlist != null && Playlist.MediaParts.Any(m => m.MediaSegments.Any(s => s.EncryptInfo.Method != EncryptMethod.NONE)))
+        {
+            var ms = Playlist.MediaParts.SelectMany(m => m.MediaSegments.Select(s => s.EncryptInfo.Method)).Where(e => e != EncryptMethod.NONE).Distinct();
+            encStr = $"[red]*{string.Join(",", ms).EscapeMarkup()}[/] ";
+        }
+
+        if (MediaType == Enum.MediaType.AUDIO)
+        {
+            prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
+            var d = $"{GroupId} | {(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Codecs} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {segmentsCountStr} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+        else if (MediaType == Enum.MediaType.SUBTITLES)
+        {
+            prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
+            var d = $"{GroupId} | {Language} | {Name} | {Codecs} | {Characteristics} | {segmentsCountStr} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+        else
+        {
+            prefixStr = $"[aqua]Vid[/] {encStr}";
+            var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {GroupId} | {FrameRate} | {Codecs} | {VideoRange} | {segmentsCountStr} | {Role}";
+            returnStr = d.EscapeMarkup();
+        }
+
+        returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
+        while (returnStr.Contains("|  |"))
+        {
+            returnStr = returnStr.Replace("|  |", "|");
+        }
+
+        // 计算时长
+        if (Playlist != null)
+        {
+            var total = Playlist.TotalDuration;
+            returnStr += " | ~" + GlobalUtil.FormatTime((int)total);
+        }
+
+        return returnStr.TrimEnd().TrimEnd('|').TrimEnd();
+    }
 }

src/N_m3u8DL-RE.Common/Entity/SubCue.cs

@@ -1,30 +1,23 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Entity;
 
-namespace N_m3u8DL_RE.Common.Entity
+public class SubCue
 {
-    public class SubCue
+    public TimeSpan StartTime { get; set; }
+    public TimeSpan EndTime { get; set; }
+    public required string Payload { get; set; }
+    public required string Settings { get; set; }
+
+    public override bool Equals(object? obj)
     {
-        public TimeSpan StartTime { get; set; }
-        public TimeSpan EndTime { get; set; }
-        public required string Payload { get; set; }
-        public required string Settings { get; set; }
+        return obj is SubCue cue &&
+               StartTime.Equals(cue.StartTime) &&
+               EndTime.Equals(cue.EndTime) &&
+               Payload == cue.Payload &&
+               Settings == cue.Settings;
+    }
 
-        public override bool Equals(object? obj)
-        {
-            return obj is SubCue cue &&
-                   StartTime.Equals(cue.StartTime) &&
-                   EndTime.Equals(cue.EndTime) &&
-                   Payload == cue.Payload &&
-                   Settings == cue.Settings;
-        }
-
-        public override int GetHashCode()
-        {
-            return HashCode.Combine(StartTime, EndTime, Payload, Settings);
-        }
+    public override int GetHashCode()
+    {
+        return HashCode.Combine(StartTime, EndTime, Payload, Settings);
     }
 }

src/N_m3u8DL-RE.Common/Entity/WebVttSub.cs

@@ -1,272 +1,268 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Common.Entity
+namespace N_m3u8DL_RE.Common.Entity;
+
+public partial class WebVttSub
 {
-    public partial class WebVttSub
+    [GeneratedRegex("X-TIMESTAMP-MAP.*")]
+    private static partial Regex TSMapRegex();
+    [GeneratedRegex("MPEGTS:(\\d+)")]
+    private static partial Regex TSValueRegex();
+    [GeneratedRegex("\\s")]
+    private static partial Regex SplitRegex();
+    [GeneratedRegex(@"<c\..*?>([\s\S]*?)<\/c>")]
+    private static partial Regex VttClassRegex();
+
+    public List<SubCue> Cues { get; set; } = [];
+    public long MpegtsTimestamp { get; set; } = 0L;
+
+    /// <summary>
+    /// 从字节数组解析WEBVTT
+    /// </summary>
+    /// <param name="textBytes"></param>
+    /// <returns></returns>
+    public static WebVttSub Parse(byte[] textBytes, long BaseTimestamp = 0L)
     {
-        [GeneratedRegex("X-TIMESTAMP-MAP.*")]
-        private static partial Regex TSMapRegex();
-        [GeneratedRegex("MPEGTS:(\\d+)")]
-        private static partial Regex TSValueRegex();
-        [GeneratedRegex("\\s")]
-        private static partial Regex SplitRegex();
-        [GeneratedRegex("<c\\..*?>([\\s\\S]*?)<\\/c>")]
-        private static partial Regex VttClassRegex();
+        return Parse(Encoding.UTF8.GetString(textBytes), BaseTimestamp);
+    }
 
-        public List<SubCue> Cues { get; set; } = new List<SubCue>();
-        public long MpegtsTimestamp { get; set; } = 0L;
+    /// <summary>
+    /// 从字节数组解析WEBVTT
+    /// </summary>
+    /// <param name="textBytes"></param>
+    /// <param name="encoding"></param>
+    /// <returns></returns>
+    public static WebVttSub Parse(byte[] textBytes, Encoding encoding, long BaseTimestamp = 0L)
+    {
+        return Parse(encoding.GetString(textBytes), BaseTimestamp);
+    }
 
-        /// <summary>
-        /// 从字节数组解析WEBVTT
-        /// </summary>
-        /// <param name="textBytes"></param>
-        /// <returns></returns>
-        public static WebVttSub Parse(byte[] textBytes, long BaseTimestamp = 0L)
+    /// <summary>
+    /// 从字符串解析WEBVTT
+    /// </summary>
+    /// <param name="text"></param>
+    /// <returns></returns>
+    public static WebVttSub Parse(string text, long BaseTimestamp = 0L)
+    {
+        if (!text.Trim().StartsWith("WEBVTT"))
+            throw new Exception("Bad vtt!");
+
+        text += Environment.NewLine;
+
+        var webSub = new WebVttSub();
+        var needPayload = false;
+        var timeLine = "";
+        var regex1 = TSMapRegex();
+
+        if (regex1.IsMatch(text))
         {
-            return Parse(Encoding.UTF8.GetString(textBytes), BaseTimestamp);
+            var timestamp = TSValueRegex().Match(regex1.Match(text).Value).Groups[1].Value;
+            webSub.MpegtsTimestamp = Convert.ToInt64(timestamp);
         }
 
-        /// <summary>
-        /// 从字节数组解析WEBVTT
-        /// </summary>
-        /// <param name="textBytes"></param>
-        /// <param name="encoding"></param>
-        /// <returns></returns>
-        public static WebVttSub Parse(byte[] textBytes, Encoding encoding, long BaseTimestamp = 0L)
+        var payloads = new List<string>();
+        foreach (var line in text.Split('\n'))
         {
-            return Parse(encoding.GetString(textBytes), BaseTimestamp);
-        }
-
-        /// <summary>
-        /// 从字符串解析WEBVTT
-        /// </summary>
-        /// <param name="text"></param>
-        /// <returns></returns>
-        public static WebVttSub Parse(string text, long BaseTimestamp = 0L)
-        {
-            if (!text.Trim().StartsWith("WEBVTT"))
-                throw new Exception("Bad vtt!");
-
-            text += Environment.NewLine;
-
-            var webSub = new WebVttSub();
-            var needPayload = false;
-            var timeLine = "";
-            var regex1 = TSMapRegex();
-
-            if (regex1.IsMatch(text))
+            if (line.Contains(" --> "))
             {
-                var timestamp = TSValueRegex().Match(regex1.Match(text).Value).Groups[1].Value;
-                webSub.MpegtsTimestamp = Convert.ToInt64(timestamp);
+                needPayload = true;
+                timeLine = line.Trim();
+                continue;
             }
 
-            var payloads = new List<string>();
-            foreach (var line in text.Split('\n'))
+            if (!needPayload) continue;
+            
+            if (string.IsNullOrEmpty(line.Trim()))
             {
-                if (line.Contains(" --> "))
-                {
-                    needPayload = true;
-                    timeLine = line.Trim();
-                    continue;
-                }
+                var payload = string.Join(Environment.NewLine, payloads);
+                if (string.IsNullOrEmpty(payload.Trim())) continue; // 没获取到payload 跳过添加
 
-                if (needPayload)
+                var arr = SplitRegex().Split(timeLine.Replace("-->", "")).Where(s => !string.IsNullOrEmpty(s)).ToList();
+                var startTime = ConvertToTS(arr[0]);
+                var endTime = ConvertToTS(arr[1]);
+                var style = arr.Count > 2 ? string.Join(" ", arr.Skip(2)) : "";
+                webSub.Cues.Add(new SubCue()
                 {
-                    if (string.IsNullOrEmpty(line.Trim()))
-                    {
-                        var payload = string.Join(Environment.NewLine, payloads);
-                        if (string.IsNullOrEmpty(payload.Trim())) continue; //没获取到payload 跳过添加
+                    StartTime = startTime,
+                    EndTime = endTime,
+                    Payload = RemoveClassTag(string.Join("", payload.Where(c => c != 8203))), // Remove Zero Width Space!
+                    Settings = style
+                });
+                payloads.Clear();
+                needPayload = false;
+            }
+            else
+            {
+                payloads.Add(line.Trim());
+            }
+        }
 
-                        var arr = SplitRegex().Split(timeLine.Replace("-->", "")).Where(s => !string.IsNullOrEmpty(s)).ToList();
-                        var startTime = ConvertToTS(arr[0]);
-                        var endTime = ConvertToTS(arr[1]);
-                        var style = arr.Count > 2 ? string.Join(" ", arr.Skip(2)) : "";
-                        webSub.Cues.Add(new SubCue()
-                        {
-                            StartTime = startTime,
-                            EndTime = endTime,
-                            Payload = RemoveClassTag(string.Join("", payload.Where(c => c != 8203))), //Remove Zero Width Space!
-                            Settings = style
-                        });
-                        payloads.Clear();
-                        needPayload = false;
-                    }
-                    else
-                    {
-                        payloads.Add(line.Trim());
-                    }
+        if (BaseTimestamp == 0) return webSub;
+        
+        foreach (var item in webSub.Cues)
+        {
+            if (item.StartTime.TotalMilliseconds - BaseTimestamp >= 0)
+            {
+                item.StartTime = TimeSpan.FromMilliseconds(item.StartTime.TotalMilliseconds - BaseTimestamp);
+                item.EndTime = TimeSpan.FromMilliseconds(item.EndTime.TotalMilliseconds - BaseTimestamp);
+            }
+            else
+            {
+                break;
+            }
+        }
+
+        return webSub;
+    }
+
+    private static string RemoveClassTag(string text)
+    {
+        if (VttClassRegex().IsMatch(text))
+        {
+            return string.Join(Environment.NewLine, text.Split('\n').Select(line => line.TrimEnd()).Select(line =>
+            {
+                return string.Concat(VttClassRegex().Matches(line).Select(x => x.Groups[1].Value + " "));
+            })).TrimEnd();
+        }
+        return text;
+    }
+
+    /// <summary>
+    /// 从另一个字幕中获取所有Cue，并加载此字幕中，且自动修正偏移
+    /// </summary>
+    /// <param name="webSub"></param>
+    /// <returns></returns>
+    public WebVttSub AddCuesFromOne(WebVttSub webSub)
+    {
+        FixTimestamp(webSub, this.MpegtsTimestamp);
+        foreach (var item in webSub.Cues)
+        {
+            if (this.Cues.Contains(item)) continue;
+            
+            // 如果相差只有1ms，且payload相同，则拼接
+            var last = this.Cues.LastOrDefault();
+            if (last != null && this.Cues.Count > 0 && (item.StartTime - last.EndTime).TotalMilliseconds <= 1 && item.Payload == last.Payload) 
+            {
+                last.EndTime = item.EndTime;
+            }
+            else
+            {
+                this.Cues.Add(item);
+            }
+        }
+        return this;
+    }
+
+    private void FixTimestamp(WebVttSub sub, long baseTimestamp)
+    {
+        if (sub.MpegtsTimestamp == 0)
+        {
+            return;
+        }
+
+        // 确实存在时间轴错误的情况，才修复
+        if ((this.Cues.Count > 0 && sub.Cues.Count > 0 && sub.Cues.First().StartTime < this.Cues.Last().EndTime && sub.Cues.First().EndTime != this.Cues.Last().EndTime) || this.Cues.Count == 0)
+        {
+            // The MPEG2 transport stream clocks (PCR, PTS, DTS) all have units of 1/90000 second
+            var seconds = (sub.MpegtsTimestamp - baseTimestamp) / 90000;
+            var offset = TimeSpan.FromSeconds(seconds);
+            // 当前预添加的字幕的起始时间小于实际上已经走过的时间(如offset已经是100秒，而字幕起始却是2秒)，才修复
+            if (sub.Cues.Count > 0 && sub.Cues.First().StartTime < offset)
+            {
+                foreach (var subCue in sub.Cues)
+                {
+                    subCue.StartTime += offset;
+                    subCue.EndTime += offset;
                 }
             }
-
-            if (BaseTimestamp != 0)
-            {
-                foreach (var item in webSub.Cues)
-                {
-                    if (item.StartTime.TotalMilliseconds - BaseTimestamp >= 0)
-                    {
-                        item.StartTime = TimeSpan.FromMilliseconds(item.StartTime.TotalMilliseconds - BaseTimestamp);
-                        item.EndTime = TimeSpan.FromMilliseconds(item.EndTime.TotalMilliseconds - BaseTimestamp);
-                    }
-                    else
-                    {
-                        break;
-                    }
-                }
-            }
-
-            return webSub;
-        }
-
-        private static string RemoveClassTag(string text)
-        {
-            if (VttClassRegex().IsMatch(text))
-            {
-                return string.Join(Environment.NewLine, text.Split('\n').Select(line => line.TrimEnd()).Select(line =>
-                {
-                    return string.Concat(VttClassRegex().Matches(line).Select(x => x.Groups[1].Value + " "));
-                })).TrimEnd();
-            }
-            else return text;
-        }
-
-        /// <summary>
-        /// 从另一个字幕中获取所有Cue，并加载此字幕中，且自动修正偏移
-        /// </summary>
-        /// <param name="webSub"></param>
-        /// <returns></returns>
-        public WebVttSub AddCuesFromOne(WebVttSub webSub)
-        {
-            FixTimestamp(webSub, this.MpegtsTimestamp);
-            foreach (var item in webSub.Cues)
-            {
-                if (!this.Cues.Contains(item))
-                {
-                    //如果相差只有1ms，且payload相同，则拼接
-                    var last = this.Cues.LastOrDefault();
-                    if (last != null && this.Cues.Count > 0 && (item.StartTime - last.EndTime).TotalMilliseconds <= 1 && item.Payload == last.Payload) 
-                    {
-                        last.EndTime = item.EndTime;
-                    }
-                    else
-                    {
-                        this.Cues.Add(item);
-                    }
-                }
-            }
-            return this;
-        }
-
-        private void FixTimestamp(WebVttSub sub, long baseTimestamp)
-        {
-            if (sub.MpegtsTimestamp == 0)
-            {
-                return;
-            }
-
-            //确实存在时间轴错误的情况，才修复
-            if ((this.Cues.Count > 0 && sub.Cues.Count > 0 && sub.Cues.First().StartTime < this.Cues.Last().EndTime && sub.Cues.First().EndTime != this.Cues.Last().EndTime) || this.Cues.Count == 0)
-            {
-                //The MPEG2 transport stream clocks (PCR, PTS, DTS) all have units of 1/90000 second
-                var seconds = (sub.MpegtsTimestamp - baseTimestamp) / 90000;
-                var offset = TimeSpan.FromSeconds(seconds);
-                //当前预添加的字幕的起始时间小于实际上已经走过的时间(如offset已经是100秒，而字幕起始却是2秒)，才修复
-                if (sub.Cues.Count > 0 && sub.Cues.First().StartTime < offset)
-                {
-                    for (int i = 0; i < sub.Cues.Count; i++)
-                    {
-                        sub.Cues[i].StartTime += offset;
-                        sub.Cues[i].EndTime += offset;
-                    }
-                }
-            }
-        }
-
-        private IEnumerable<SubCue> GetCues()
-        {
-            return this.Cues.Where(c => !string.IsNullOrEmpty(c.Payload));
-        }
-
-        private static TimeSpan ConvertToTS(string str)
-        {
-            //17.0s
-            if (str.EndsWith('s'))
-            {
-                double sec = Convert.ToDouble(str[..^1]);
-                return TimeSpan.FromSeconds(sec);
-            }
-
-            str = str.Replace(',', '.');
-            var ms = Convert.ToInt32(str.Split('.').Last());
-            var o = str.Split('.').First();
-            var t = o.Split(':').Reverse().ToList();
-            var time = 0L + ms;
-            for (int i = 0; i < t.Count(); i++)
-            {
-                time += (long)Math.Pow(60, i) * Convert.ToInt32(t[i]) * 1000;
-            }
-            return TimeSpan.FromMilliseconds(time);
-        }
-
-        public override string ToString()
-        {
-            StringBuilder sb = new StringBuilder();
-            foreach (var c in GetCues())  //输出时去除空串
-            {
-                sb.AppendLine(c.StartTime.ToString(@"hh\:mm\:ss\.fff") + " --> " + c.EndTime.ToString(@"hh\:mm\:ss\.fff") + " " + c.Settings);
-                sb.AppendLine(c.Payload);
-                sb.AppendLine();
-            }
-            sb.AppendLine();
-            return sb.ToString();
-        }
-
-        /// <summary>
-        /// 字幕向前平移指定时间
-        /// </summary>
-        /// <param name="time"></param>
-        public void LeftShiftTime(TimeSpan time)
-        {
-            foreach (var cue in this.Cues)
-            {
-                if (cue.StartTime.TotalSeconds - time.TotalSeconds > 0) cue.StartTime -= time;
-                else cue.StartTime = TimeSpan.FromSeconds(0);
-
-                if (cue.EndTime.TotalSeconds - time.TotalSeconds > 0) cue.EndTime -= time;
-                else cue.EndTime = TimeSpan.FromSeconds(0);
-            }
-        }
-
-        public string ToVtt()
-        {
-            return "WEBVTT" + Environment.NewLine + Environment.NewLine + ToString();
-        }
-
-        public string ToSrt()
-        {
-            StringBuilder sb = new StringBuilder();
-            int index = 1;
-            foreach (var c in GetCues())
-            {
-                sb.AppendLine($"{index++}");
-                sb.AppendLine(c.StartTime.ToString(@"hh\:mm\:ss\,fff") + " --> " + c.EndTime.ToString(@"hh\:mm\:ss\,fff"));
-                sb.AppendLine(c.Payload);
-                sb.AppendLine();
-            }
-            sb.AppendLine();
-
-            var srt = sb.ToString();
-
-            if (string.IsNullOrEmpty(srt.Trim()))
-            {
-                srt = "1\r\n00:00:00,000 --> 00:00:01,000"; //空字幕
-            }
-
-            return srt;
         }
     }
+
+    private IEnumerable<SubCue> GetCues()
+    {
+        return this.Cues.Where(c => !string.IsNullOrEmpty(c.Payload));
+    }
+
+    private static TimeSpan ConvertToTS(string str)
+    {
+        // 17.0s
+        if (str.EndsWith('s'))
+        {
+            double sec = Convert.ToDouble(str[..^1]);
+            return TimeSpan.FromSeconds(sec);
+        }
+
+        str = str.Replace(',', '.');
+        long time = 0;
+        string[] parts = str.Split('.');
+        if (parts.Length > 1)
+        {
+            time += Convert.ToInt32(parts.Last().PadRight(3, '0'));
+            str = parts.First();
+        }
+        var t = str.Split(':').Reverse().ToList();
+        for (int i = 0; i < t.Count; i++)
+        {
+            time += (long)Math.Pow(60, i) * Convert.ToInt32(t[i]) * 1000;
+        }
+        return TimeSpan.FromMilliseconds(time);
+    }
+
+    public override string ToString()
+    {
+        var sb = new StringBuilder();
+        foreach (var c in GetCues())  // 输出时去除空串
+        {
+            sb.AppendLine(c.StartTime.ToString(@"hh\:mm\:ss\.fff") + " --> " + c.EndTime.ToString(@"hh\:mm\:ss\.fff") + " " + c.Settings);
+            sb.AppendLine(c.Payload);
+            sb.AppendLine();
+        }
+        sb.AppendLine();
+        return sb.ToString();
+    }
+
+    /// <summary>
+    /// 字幕向前平移指定时间
+    /// </summary>
+    /// <param name="time"></param>
+    public void LeftShiftTime(TimeSpan time)
+    {
+        foreach (var cue in this.Cues)
+        {
+            if (cue.StartTime.TotalSeconds - time.TotalSeconds > 0) cue.StartTime -= time;
+            else cue.StartTime = TimeSpan.FromSeconds(0);
+
+            if (cue.EndTime.TotalSeconds - time.TotalSeconds > 0) cue.EndTime -= time;
+            else cue.EndTime = TimeSpan.FromSeconds(0);
+        }
+    }
+
+    public string ToVtt()
+    {
+        return "WEBVTT" + Environment.NewLine + Environment.NewLine + ToString();
+    }
+
+    public string ToSrt()
+    {
+        StringBuilder sb = new StringBuilder();
+        int index = 1;
+        foreach (var c in GetCues())
+        {
+            sb.AppendLine($"{index++}");
+            sb.AppendLine(c.StartTime.ToString(@"hh\:mm\:ss\,fff") + " --> " + c.EndTime.ToString(@"hh\:mm\:ss\,fff"));
+            sb.AppendLine(c.Payload);
+            sb.AppendLine();
+        }
+        sb.AppendLine();
+
+        var srt = sb.ToString();
+
+        if (string.IsNullOrEmpty(srt.Trim()))
+        {
+            srt = "1\r\n00:00:00,000 --> 00:00:01,000"; // 空字幕
+        }
+
+        return srt;
+    }
 }

src/N_m3u8DL-RE.Common/Enum/Choise.cs

@@ -1,14 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Enum;
 
-namespace N_m3u8DL_RE.Common.Enum
+public enum Choise
 {
-    public enum Choise
-    {
-        YES = 1,
-        NO = 0
-    }
+    YES = 1,
+    NO = 0
 }

src/N_m3u8DL-RE.Common/Enum/EncryptMethod.cs

@@ -1,20 +1,13 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Enum;
 
-namespace N_m3u8DL_RE.Common.Enum
+public enum EncryptMethod
 {
-    public enum EncryptMethod
-    {
-        NONE,
-        AES_128,
-        AES_128_ECB,
-        SAMPLE_AES,
-        SAMPLE_AES_CTR,
-        CENC,
-        CHACHA20,
-        UNKNOWN
-    }
+    NONE,
+    AES_128,
+    AES_128_ECB,
+    SAMPLE_AES,
+    SAMPLE_AES_CTR,
+    CENC,
+    CHACHA20,
+    UNKNOWN
 }

src/N_m3u8DL-RE.Common/Enum/ExtractorType.cs

@@ -1,16 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Enum;
 
-namespace N_m3u8DL_RE.Common.Enum
+public enum ExtractorType
 {
-    public enum ExtractorType
-    {
-        MPEG_DASH,
-        HLS,
-        HTTP_LIVE,
-        MSS
-    }
+    MPEG_DASH,
+    HLS,
+    HTTP_LIVE,
+    MSS
 }

src/N_m3u8DL-RE.Common/Enum/MediaType.cs

@@ -1,16 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Enum;
 
-namespace N_m3u8DL_RE.Common.Enum
+public enum MediaType
 {
-    public enum MediaType
-    {
-        AUDIO = 0,
-        VIDEO = 1,
-        SUBTITLES = 2,
-        CLOSED_CAPTIONS = 3
-    }
+    AUDIO = 0,
+    VIDEO = 1,
+    SUBTITLES = 2,
+    CLOSED_CAPTIONS = 3
 }

src/N_m3u8DL-RE.Common/Enum/RoleType.cs

@@ -1,15 +1,15 @@
-namespace N_m3u8DL_RE.Common.Enum
+namespace N_m3u8DL_RE.Common.Enum;
+
+public enum RoleType
 {
-    public enum RoleType
-    {
-        Subtitle = 0,
-        Main = 1,
-        Alternate = 2,
-        Supplementary = 3,
-        Commentary = 4,
-        Dub = 5,
-        Description = 6,
-        Sign = 7,
-        Metadata = 8,
-    }
+    Subtitle = 0,
+    Main = 1,
+    Alternate = 2,
+    Supplementary = 3,
+    Commentary = 4,
+    Dub = 5,
+    Description = 6,
+    Sign = 7,
+    Metadata = 8,
+    ForcedSubtitle = 9
 }

src/N_m3u8DL-RE.Common/JsonContext/JsonContext.cs

@@ -2,21 +2,20 @@
 using N_m3u8DL_RE.Common.Enum;
 using System.Text.Json.Serialization;
 
-namespace N_m3u8DL_RE.Common
-{
-    [JsonSourceGenerationOptions(
+namespace N_m3u8DL_RE.Common;
+
+[JsonSourceGenerationOptions(
     WriteIndented = true,
     PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase,
     GenerationMode = JsonSourceGenerationMode.Metadata)]
-    [JsonSerializable(typeof(MediaType))]
-    [JsonSerializable(typeof(EncryptMethod))]
-    [JsonSerializable(typeof(ExtractorType))]
-    [JsonSerializable(typeof(Choise))]
-    [JsonSerializable(typeof(StreamSpec))]
-    [JsonSerializable(typeof(IOrderedEnumerable<StreamSpec>))]
-    [JsonSerializable(typeof(IEnumerable<MediaSegment>))]
-    [JsonSerializable(typeof(List<StreamSpec>))]
-    [JsonSerializable(typeof(List<MediaSegment>))]
-    [JsonSerializable(typeof(Dictionary<string, string>))]
-    internal partial class JsonContext : JsonSerializerContext { }
-}
+[JsonSerializable(typeof(MediaType))]
+[JsonSerializable(typeof(EncryptMethod))]
+[JsonSerializable(typeof(ExtractorType))]
+[JsonSerializable(typeof(Choise))]
+[JsonSerializable(typeof(StreamSpec))]
+[JsonSerializable(typeof(IOrderedEnumerable<StreamSpec>))]
+[JsonSerializable(typeof(IEnumerable<MediaSegment>))]
+[JsonSerializable(typeof(List<StreamSpec>))]
+[JsonSerializable(typeof(List<MediaSegment>))]
+[JsonSerializable(typeof(Dictionary<string, string>))]
+internal partial class JsonContext : JsonSerializerContext { }

src/N_m3u8DL-RE.Common/JsonConverter/BytesBase64Converter.cs

@@ -1,17 +1,11 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Text.Json;
+using System.Text.Json;
 using System.Text.Json.Serialization;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Common.JsonConverter
+namespace N_m3u8DL_RE.Common.JsonConverter;
+
+internal class BytesBase64Converter : JsonConverter<byte[]>
 {
-    internal class BytesBase64Converter : JsonConverter<byte[]>
-    {
-        public override byte[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) => reader.GetBytesFromBase64();
+    public override byte[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) => reader.GetBytesFromBase64();
 
-        public override void Write(Utf8JsonWriter writer, byte[] value, JsonSerializerOptions options) => writer.WriteStringValue(Convert.ToBase64String(value));
-    }
+    public override void Write(Utf8JsonWriter writer, byte[] value, JsonSerializerOptions options) => writer.WriteStringValue(Convert.ToBase64String(value));
 }

src/N_m3u8DL-RE.Common/Log/CustomAnsiConsole.cs

@@ -4,39 +4,46 @@ using Spectre.Console;
 
 namespace N_m3u8DL_RE.Common.Log;
 
-public class NonAnsiWriter : TextWriter
+public partial class NonAnsiWriter : TextWriter
 {
     public override Encoding Encoding => Console.OutputEncoding;
 
-    private string lastOut = "";
+    private string? _lastOut = "";
 
     public override void Write(char value)
     {
         Console.Write(value);
     }
 
-    public override void Write(string value)
+    public override void Write(string? value)
     {
-        if (lastOut == value)
+        if (_lastOut == value)
         {
             return;
         }
-        lastOut = value;
+        _lastOut = value;
         RemoveAnsiEscapeSequences(value);
     }
 
-    private void RemoveAnsiEscapeSequences(string input)
+    private void RemoveAnsiEscapeSequences(string? input)
     {
         // Use regular expression to remove ANSI escape sequences
-        string output = Regex.Replace(input, @"\x1B\[(\d+;?)+m", "");
-        output = Regex.Replace(output, @"\[\??\d+[AKlh]", "");
-        output = Regex.Replace(output,"[\r\n] +","");
+        var output = MyRegex().Replace(input ?? "", "");
+        output = MyRegex1().Replace(output, "");
+        output = MyRegex2().Replace(output, "");
         if (string.IsNullOrWhiteSpace(output))
         {
             return;
         }
         Console.Write(output);
     }
+
+    [GeneratedRegex(@"\x1B\[(\d+;?)+m")]
+    private static partial Regex MyRegex();
+    [GeneratedRegex(@"\[\??\d+[AKlh]")]
+    private static partial Regex MyRegex1();
+    [GeneratedRegex("[\r\n] +")]
+    private static partial Regex MyRegex2();
 }
 
 /// <summary>

src/N_m3u8DL-RE.Common/Log/LogLevel.cs

@@ -1,17 +1,10 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Log;
 
-namespace N_m3u8DL_RE.Common.Log
+public enum LogLevel
 {
-    public enum LogLevel
-    {
-        OFF,
-        ERROR,
-        WARN,
-        INFO,
-        DEBUG,
-    }
+    OFF,
+    ERROR,
+    WARN,
+    INFO,
+    DEBUG,
 }

src/N_m3u8DL-RE.Common/Log/Logger.cs

@@ -1,243 +1,226 @@
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-using static System.Net.Mime.MediaTypeNames;
 
-namespace N_m3u8DL_RE.Common.Log
+namespace N_m3u8DL_RE.Common.Log;
+
+public static partial class Logger
 {
-    public partial class Logger
+    [GeneratedRegex("{}")]
+    private static partial Regex VarsRepRegex();
+
+    /// <summary>
+    /// 日志级别，默认为INFO
+    /// </summary>
+    public static LogLevel LogLevel { get; set; } = LogLevel.INFO;
+
+    /// <summary>
+    /// 是否写出日志文件
+    /// </summary>
+    public static bool IsWriteFile { get; set; } = true;
+
+    /// <summary>
+    /// 本次运行日志文件所在位置
+    /// </summary>
+    private static string? LogFilePath { get; set; }
+
+    // 读写锁
+    static ReaderWriterLockSlim LogWriteLock = new ReaderWriterLockSlim();
+
+    public static void InitLogFile()
     {
-        [GeneratedRegex("{}")]
-        private static partial Regex VarsRepRegex();
+        if (!IsWriteFile) return;
 
-        /// <summary>
-        /// 日志级别，默认为INFO
-        /// </summary>
-        public static LogLevel LogLevel { get; set; } = LogLevel.INFO;
-
-        /// <summary>
-        /// 是否写出日志文件
-        /// </summary>
-        public static bool IsWriteFile { get; set; } = true;
-
-        /// <summary>
-        /// 本次运行日志文件所在位置
-        /// </summary>
-        private static string? LogFilePath { get; set; }
-
-        //读写锁
-        static ReaderWriterLockSlim LogWriteLock = new ReaderWriterLockSlim();
-
-        public static void InitLogFile()
+        try
         {
-            if (!IsWriteFile) return;
+            var logDir = Path.GetDirectoryName(Environment.ProcessPath) + "/Logs";
+            if (!Directory.Exists(logDir))
+            {
+                Directory.CreateDirectory(logDir);
+            }
 
+            var now = DateTime.Now;
+            LogFilePath = Path.Combine(logDir, now.ToString("yyyy-MM-dd_HH-mm-ss-fff") + ".log");
+            int index = 1;
+            var fileName = Path.GetFileNameWithoutExtension(LogFilePath);
+            string init = "LOG " + now.ToString("yyyy/MM/dd") + Environment.NewLine
+                          + "Save Path: " + Path.GetDirectoryName(LogFilePath) + Environment.NewLine
+                          + "Task Start: " + now.ToString("yyyy/MM/dd HH:mm:ss") + Environment.NewLine
+                          + "Task CommandLine: " + Environment.CommandLine;
+            init += $"{Environment.NewLine}{Environment.NewLine}";
+            // 若文件存在则加序号
+            while (File.Exists(LogFilePath))
+            {
+                LogFilePath = Path.Combine(Path.GetDirectoryName(LogFilePath)!, $"{fileName}-{index++}.log");
+            }
+            File.WriteAllText(LogFilePath, init, Encoding.UTF8);
+        }
+        catch (Exception ex)
+        {
+            Error($"Init log failed! {ex.Message.RemoveMarkup()}");
+        }
+    }
+
+    private static string GetCurrTime()
+    {
+        return DateTime.Now.ToString("HH:mm:ss.fff");
+    }
+
+    private static void HandleLog(string write, string subWrite = "")
+    {
+        try
+        {
+            if (subWrite == "")
+            {
+                CustomAnsiConsole.MarkupLine(write);
+            }
+            else
+            {
+                CustomAnsiConsole.Markup(write);
+                Console.WriteLine(subWrite);
+            }
+
+            if (!IsWriteFile || !File.Exists(LogFilePath)) return;
+            
+            var plain = write.RemoveMarkup() + subWrite.RemoveMarkup();
             try
             {
-                var logDir = Path.GetDirectoryName(Environment.ProcessPath) + "/Logs";
-                if (!Directory.Exists(logDir))
+                // 进入写入
+                LogWriteLock.EnterWriteLock();
+                using (StreamWriter sw = File.AppendText(LogFilePath))
                 {
-                    Directory.CreateDirectory(logDir);
-                }
-
-                var now = DateTime.Now;
-                LogFilePath = Path.Combine(logDir, now.ToString("yyyy-MM-dd_HH-mm-ss-fff") + ".log");
-                int index = 1;
-                var fileName = Path.GetFileNameWithoutExtension(LogFilePath);
-                string init = "LOG " + now.ToString("yyyy/MM/dd") + Environment.NewLine
-                              + "Save Path: " + Path.GetDirectoryName(LogFilePath) + Environment.NewLine
-                              + "Task Start: " + now.ToString("yyyy/MM/dd HH:mm:ss") + Environment.NewLine
-                              + "Task CommandLine: " + Environment.CommandLine;
-                init += $"{Environment.NewLine}{Environment.NewLine}";
-                //若文件存在则加序号
-                while (File.Exists(LogFilePath))
-                {
-                    LogFilePath = Path.Combine(Path.GetDirectoryName(LogFilePath)!, $"{fileName}-{index++}.log");
-                }
-                File.WriteAllText(LogFilePath, init, Encoding.UTF8);
-            }
-            catch (Exception ex)
-            {
-                Error($"Init log failed! {ex.Message.RemoveMarkup()}");
-            }
-        }
-
-        private static string GetCurrTime()
-        {
-            return DateTime.Now.ToString("HH:mm:ss.fff");
-        }
-
-        private static void HandleLog(string write, string subWrite = "")
-        {
-            try
-            {
-                if (subWrite == "")
-                {
-                    CustomAnsiConsole.MarkupLine(write);
-                }
-                else
-                {
-                    CustomAnsiConsole.Markup(write);
-                    Console.WriteLine(subWrite);
-                }
-
-                if (IsWriteFile && File.Exists(LogFilePath))
-                {
-                    var plain = write.RemoveMarkup() + subWrite.RemoveMarkup();
-                    try
-                    {
-                        //进入写入
-                        LogWriteLock.EnterWriteLock();
-                        using (StreamWriter sw = File.AppendText(LogFilePath))
-                        {
-                            sw.WriteLine(plain);
-                        }
-                    }
-                    finally
-                    {
-                        //释放占用
-                        LogWriteLock.ExitWriteLock();
-                    }
+                    sw.WriteLine(plain);
                 }
             }
-            catch (Exception)
+            finally
             {
-                Console.WriteLine("Failed to write: " + write);
+                // 释放占用
+                LogWriteLock.ExitWriteLock();
             }
         }
-
-        private static string ReplaceVars(string data, params object[] ps)
+        catch (Exception)
         {
-            for (int i = 0; i < ps.Length; i++)
-            {
-                data = VarsRepRegex().Replace(data, $"{ps[i]}", 1);
-            }
+            Console.WriteLine("Failed to write: " + write);
+        }
+    }
 
-            return data;
+    private static string ReplaceVars(string data, params object[] ps)
+    {
+        for (int i = 0; i < ps.Length; i++)
+        {
+            data = VarsRepRegex().Replace(data, $"{ps[i]}", 1);
         }
 
-        public static void Info(string data, params object[] ps)
+        return data;
+    }
+
+    public static void Info(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.INFO) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline #548c26]INFO[/] : ";
+        HandleLog(write, data);
+    }
+
+    public static void InfoMarkUp(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.INFO) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline #548c26]INFO[/] : " + data;
+        HandleLog(write);
+    }
+
+    public static void Debug(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.DEBUG) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline grey]DEBUG[/]: ";
+        HandleLog(write, data);
+    }
+
+    public static void DebugMarkUp(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.DEBUG) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline grey]DEBUG[/]: " + data;
+        HandleLog(write);
+    }
+
+    public static void Warn(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.WARN) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline #a89022]WARN[/] : ";
+        HandleLog(write, data);
+    }
+
+    public static void WarnMarkUp(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.WARN) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline #a89022]WARN[/] : " + data;
+        HandleLog(write);
+    }
+
+    public static void Error(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.ERROR) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline red1]ERROR[/]: ";
+        HandleLog(write, data);
+    }
+
+    public static void ErrorMarkUp(string data, params object[] ps)
+    {
+        if (LogLevel < LogLevel.ERROR) return;
+        
+        data = ReplaceVars(data, ps);
+        var write = GetCurrTime() + " " + "[underline red1]ERROR[/]: " + data;
+        HandleLog(write);
+    }
+
+    public static void ErrorMarkUp(Exception exception)
+    {
+        string data = exception.Message.EscapeMarkup();
+        if (LogLevel >= LogLevel.ERROR)
         {
-            if (LogLevel >= LogLevel.INFO)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline #548c26]INFO[/] : ";
-                HandleLog(write, data);
-            }
+            data = exception.ToString().EscapeMarkup();
         }
 
-        public static void InfoMarkUp(string data, params object[] ps)
+        ErrorMarkUp(data);
+    }
+
+    /// <summary>
+    /// This thing will only write to the log file.
+    /// </summary>
+    /// <param name="data"></param>
+    /// <param name="ps"></param>
+    public static void Extra(string data, params object[] ps)
+    {
+        if (!IsWriteFile || !File.Exists(LogFilePath)) return;
+        
+        data = ReplaceVars(data, ps);
+        var plain = GetCurrTime() + " " + "EXTRA: " + data.RemoveMarkup();
+        try
         {
-            if (LogLevel >= LogLevel.INFO)
+            // 进入写入
+            LogWriteLock.EnterWriteLock();
+            using (StreamWriter sw = File.AppendText(LogFilePath))
             {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline #548c26]INFO[/] : " + data;
-                HandleLog(write);
+                sw.WriteLine(plain, Encoding.UTF8);
             }
         }
-
-        public static void Debug(string data, params object[] ps)
+        finally
         {
-            if (LogLevel >= LogLevel.DEBUG)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline grey]DEBUG[/]: ";
-                HandleLog(write, data);
-            }
-        }
-
-        public static void DebugMarkUp(string data, params object[] ps)
-        {
-            if (LogLevel >= LogLevel.DEBUG)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline grey]DEBUG[/]: " + data;
-                HandleLog(write);
-            }
-        }
-
-        public static void Warn(string data, params object[] ps)
-        {
-            if (LogLevel >= LogLevel.WARN)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline #a89022]WARN[/] : ";
-                HandleLog(write, data);
-            }
-        }
-
-        public static void WarnMarkUp(string data, params object[] ps)
-        {
-            if (LogLevel >= LogLevel.WARN)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline #a89022]WARN[/] : " + data;
-                HandleLog(write);
-            }
-        }
-
-        public static void Error(string data, params object[] ps)
-        {
-            if (LogLevel >= LogLevel.ERROR)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline red1]ERROR[/]: ";
-                HandleLog(write, data);
-            }
-        }
-
-        public static void ErrorMarkUp(string data, params object[] ps)
-        {
-            if (LogLevel >= LogLevel.ERROR)
-            {
-                data = ReplaceVars(data, ps);
-                var write = GetCurrTime() + " " + "[underline red1]ERROR[/]: " + data;
-                HandleLog(write);
-            }
-        }
-
-        public static void ErrorMarkUp(Exception exception)
-        {
-            string data = exception.Message.EscapeMarkup();
-            if (LogLevel >= LogLevel.ERROR)
-            {
-                data = exception.ToString().EscapeMarkup();
-            }
-
-            ErrorMarkUp(data);
-        }
-
-        /// <summary>
-        /// This thing will only write to the log file.
-        /// </summary>
-        /// <param name="data"></param>
-        /// <param name="ps"></param>
-        public static void Extra(string data, params object[] ps)
-        {
-            if (IsWriteFile && File.Exists(LogFilePath))
-            {
-                data = ReplaceVars(data, ps);
-                var plain = GetCurrTime() + " " + "EXTRA: " + data.RemoveMarkup();
-                try
-                {
-                    //进入写入
-                    LogWriteLock.EnterWriteLock();
-                    using (StreamWriter sw = File.AppendText(LogFilePath))
-                    {
-                        sw.WriteLine(plain, Encoding.UTF8);
-                    }
-                }
-                finally
-                {
-                    //释放占用
-                    LogWriteLock.ExitWriteLock();
-                }
-            }
+            // 释放占用
+            LogWriteLock.ExitWriteLock();
         }
     }
 }

src/N_m3u8DL-RE.Common/N_m3u8DL-RE.Common.csproj

@@ -2,15 +2,15 @@
 
   <PropertyGroup>
 	<OutputType>library</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>N_m3u8DL_RE.Common</RootNamespace>
     <ImplicitUsings>enable</ImplicitUsings>
-	<LangVersion>preview</LangVersion>
+    <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-	  <PackageReference Include="Spectre.Console" Version="0.47.1-preview.0.11" />
+	  <PackageReference Include="Spectre.Console" Version="0.49.2-preview.0.50" />
   </ItemGroup>
 	
 </Project>

src/N_m3u8DL-RE.Common/Resource/ResString.cs

@@ -1,151 +1,150 @@
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Resource;
 
-namespace N_m3u8DL_RE.Common.Resource
+public static class ResString
 {
-    public class ResString
+    public static string CurrentLoc { get; set; } = "en-US";
+
+    public static readonly string ReLiveTs = "<RE_LIVE_TS>";
+    public static string singleFileRealtimeDecryptWarn => GetText("singleFileRealtimeDecryptWarn");
+    public static string singleFileSplitWarn => GetText("singleFileSplitWarn");
+    public static string customRangeWarn => GetText("customRangeWarn");
+    public static string customRangeFound => GetText("customRangeFound");
+    public static string customAdKeywordsFound => GetText("customAdKeywordsFound");
+    public static string customRangeInvalid => GetText("customRangeInvalid");
+    public static string consoleRedirected => GetText("consoleRedirected");
+    public static string autoBinaryMerge => GetText("autoBinaryMerge");
+    public static string autoBinaryMerge2 => GetText("autoBinaryMerge2");
+    public static string autoBinaryMerge3 => GetText("autoBinaryMerge3");
+    public static string autoBinaryMerge4 => GetText("autoBinaryMerge4");
+    public static string autoBinaryMerge5 => GetText("autoBinaryMerge5");
+    public static string autoBinaryMerge6 => GetText("autoBinaryMerge6");
+    public static string badM3u8 => GetText("badM3u8");
+    public static string binaryMerge => GetText("binaryMerge");
+    public static string checkingLast => GetText("checkingLast");
+    public static string cmd_appendUrlParams => GetText("cmd_appendUrlParams");
+    public static string cmd_autoSelect => GetText("cmd_autoSelect");
+    public static string cmd_disableUpdateCheck => GetText("cmd_disableUpdateCheck");
+    public static string cmd_binaryMerge => GetText("cmd_binaryMerge");
+    public static string cmd_useFFmpegConcatDemuxer => GetText("cmd_useFFmpegConcatDemuxer");
+    public static string cmd_checkSegmentsCount => GetText("cmd_checkSegmentsCount");
+    public static string cmd_decryptionBinaryPath => GetText("cmd_decryptionBinaryPath");
+    public static string cmd_delAfterDone => GetText("cmd_delAfterDone");
+    public static string cmd_ffmpegBinaryPath => GetText("cmd_ffmpegBinaryPath");
+    public static string cmd_mkvmergeBinaryPath => GetText("cmd_mkvmergeBinaryPath");
+    public static string cmd_baseUrl => GetText("cmd_baseUrl");
+    public static string cmd_maxSpeed => GetText("cmd_maxSpeed");
+    public static string cmd_adKeyword => GetText("cmd_adKeyword");
+    public static string cmd_moreHelp => GetText("cmd_moreHelp");
+    public static string cmd_header => GetText("cmd_header");
+    public static string cmd_muxImport => GetText("cmd_muxImport");
+    public static string cmd_muxImport_more => GetText("cmd_muxImport_more");
+    public static string cmd_selectVideo => GetText("cmd_selectVideo");
+    public static string cmd_dropVideo => GetText("cmd_dropVideo");
+    public static string cmd_selectVideo_more => GetText("cmd_selectVideo_more");
+    public static string cmd_selectAudio => GetText("cmd_selectAudio");
+    public static string cmd_dropAudio => GetText("cmd_dropAudio");
+    public static string cmd_selectAudio_more => GetText("cmd_selectAudio_more");
+    public static string cmd_selectSubtitle => GetText("cmd_selectSubtitle");
+    public static string cmd_dropSubtitle => GetText("cmd_dropSubtitle");
+    public static string cmd_selectSubtitle_more => GetText("cmd_selectSubtitle_more");
+    public static string cmd_custom_range => GetText("cmd_custom_range");
+    public static string cmd_customHLSMethod => GetText("cmd_customHLSMethod");
+    public static string cmd_customHLSKey => GetText("cmd_customHLSKey");
+    public static string cmd_customHLSIv => GetText("cmd_customHLSIv");
+    public static string cmd_Input => GetText("cmd_Input");
+    public static string cmd_forceAnsiConsole => GetText("cmd_forceAnsiConsole");
+    public static string cmd_noAnsiColor => GetText("cmd_noAnsiColor");
+    public static string cmd_keys => GetText("cmd_keys");
+    public static string cmd_keyText => GetText("cmd_keyText");
+    public static string cmd_loadKeyFailed => GetText("cmd_loadKeyFailed");
+    public static string cmd_logLevel => GetText("cmd_logLevel");
+    public static string cmd_MP4RealTimeDecryption => GetText("cmd_MP4RealTimeDecryption");
+    public static string cmd_saveDir => GetText("cmd_saveDir");
+    public static string cmd_saveName => GetText("cmd_saveName");
+    public static string cmd_savePattern => GetText("cmd_savePattern");
+    public static string cmd_skipDownload => GetText("cmd_skipDownload");
+    public static string cmd_noDateInfo => GetText("cmd_noDateInfo");
+    public static string cmd_noLog => GetText("cmd_noLog");
+    public static string cmd_allowHlsMultiExtMap => GetText("cmd_allowHlsMultiExtMap");
+    public static string cmd_skipMerge => GetText("cmd_skipMerge");
+    public static string cmd_subFormat => GetText("cmd_subFormat");
+    public static string cmd_subOnly => GetText("cmd_subOnly");
+    public static string cmd_subtitleFix => GetText("cmd_subtitleFix");
+    public static string cmd_threadCount => GetText("cmd_threadCount");
+    public static string cmd_downloadRetryCount => GetText("cmd_downloadRetryCount");
+    public static string cmd_httpRequestTimeout => GetText("cmd_httpRequestTimeout");
+    public static string cmd_tmpDir => GetText("cmd_tmpDir");
+    public static string cmd_uiLanguage => GetText("cmd_uiLanguage");
+    public static string cmd_urlProcessorArgs => GetText("cmd_urlProcessorArgs");
+    public static string cmd_useShakaPackager => GetText("cmd_useShakaPackager");
+    public static string cmd_decryptionEngine => GetText("cmd_decryptionEngine");
+    public static string cmd_concurrentDownload => GetText("cmd_concurrentDownload");
+    public static string cmd_useSystemProxy => GetText("cmd_useSystemProxy");
+    public static string cmd_customProxy => GetText("cmd_customProxy");
+    public static string cmd_customRange => GetText("cmd_customRange");
+    public static string cmd_liveKeepSegments => GetText("cmd_liveKeepSegments");
+    public static string cmd_livePipeMux => GetText("cmd_livePipeMux");
+    public static string cmd_liveRecordLimit => GetText("cmd_liveRecordLimit");
+    public static string cmd_taskStartAt => GetText("cmd_taskStartAt");
+    public static string cmd_liveWaitTime => GetText("cmd_liveWaitTime");
+    public static string cmd_liveTakeCount => GetText("cmd_liveTakeCount");
+    public static string cmd_liveFixVttByAudio => GetText("cmd_liveFixVttByAudio");
+    public static string cmd_liveRealTimeMerge => GetText("cmd_liveRealTimeMerge");
+    public static string cmd_livePerformAsVod => GetText("cmd_livePerformAsVod");
+    public static string cmd_muxAfterDone => GetText("cmd_muxAfterDone");
+    public static string cmd_muxAfterDone_more => GetText("cmd_muxAfterDone_more");
+    public static string cmd_writeMetaJson => GetText("cmd_writeMetaJson");
+    public static string liveLimit => GetText("liveLimit");
+    public static string realTimeDecMessage => GetText("realTimeDecMessage");
+    public static string liveLimitReached => GetText("liveLimitReached");
+    public static string saveName => GetText("saveName");
+    public static string taskStartAt => GetText("taskStartAt");
+    public static string namedPipeCreated => GetText("namedPipeCreated");
+    public static string namedPipeMux => GetText("namedPipeMux");
+    public static string partMerge => GetText("partMerge");
+    public static string fetch => GetText("fetch");
+    public static string ffmpegMerge => GetText("ffmpegMerge");
+    public static string ffmpegNotFound => GetText("ffmpegNotFound");
+    public static string mkvmergeNotFound => GetText("mkvmergeNotFound");
+    public static string mp4decryptNotFound => GetText("mp4decryptNotFound");
+    public static string shakaPackagerNotFound => GetText("shakaPackagerNotFound");
+    public static string fixingTTML => GetText("fixingTTML");
+    public static string fixingTTMLmp4 => GetText("fixingTTMLmp4");
+    public static string fixingVTT => GetText("fixingVTT");
+    public static string fixingVTTmp4 => GetText("fixingVTTmp4");
+    public static string keyProcessorNotFound => GetText("keyProcessorNotFound");
+    public static string liveFound => GetText("liveFound");
+    public static string loadingUrl => GetText("loadingUrl");
+    public static string masterM3u8Found => GetText("masterM3u8Found");
+    public static string allowHlsMultiExtMap => GetText("allowHlsMultiExtMap");
+    public static string matchDASH => GetText("matchDASH");
+    public static string matchMSS => GetText("matchMSS");
+    public static string matchTS => GetText("matchTS");
+    public static string matchHLS => GetText("matchHLS");
+    public static string notSupported => GetText("notSupported");
+    public static string parsingStream => GetText("parsingStream");
+    public static string promptChoiceText => GetText("promptChoiceText");
+    public static string promptInfo => GetText("promptInfo");
+    public static string promptTitle => GetText("promptTitle");
+    public static string readingInfo => GetText("readingInfo");
+    public static string searchKey => GetText("searchKey");
+    public static string decryptionFailed => GetText("decryptionFailed");
+    public static string segmentCountCheckNotPass => GetText("segmentCountCheckNotPass");
+    public static string selectedStream => GetText("selectedStream");
+    public static string startDownloading => GetText("startDownloading");
+    public static string streamsInfo => GetText("streamsInfo");
+    public static string writeJson => GetText("writeJson");
+    public static string noStreamsToDownload => GetText("noStreamsToDownload");
+    public static string newVersionFound => GetText("newVersionFound");
+    public static string processImageSub => GetText("processImageSub");
+
+    private static string GetText(string key)
     {
-        public readonly static string ReLiveTs = "<RE_LIVE_TS>";
-        public static string singleFileRealtimeDecryptWarn { get => GetText("singleFileRealtimeDecryptWarn"); }
-        public static string singleFileSplitWarn { get => GetText("singleFileSplitWarn"); }
-        public static string customRangeWarn { get => GetText("customRangeWarn"); }
-        public static string customRangeFound { get => GetText("customRangeFound"); }
-        public static string customAdKeywordsFound { get => GetText("customAdKeywordsFound"); }
-        public static string customRangeInvalid { get => GetText("customRangeInvalid"); }
-        public static string consoleRedirected { get => GetText("consoleRedirected"); }
-        public static string autoBinaryMerge { get => GetText("autoBinaryMerge"); }
-        public static string autoBinaryMerge2 { get => GetText("autoBinaryMerge2"); }
-        public static string autoBinaryMerge3 { get => GetText("autoBinaryMerge3"); }
-        public static string autoBinaryMerge4 { get => GetText("autoBinaryMerge4"); }
-        public static string autoBinaryMerge5 { get => GetText("autoBinaryMerge5"); }
-        public static string autoBinaryMerge6 { get => GetText("autoBinaryMerge6"); }
-        public static string badM3u8 { get => GetText("badM3u8"); }
-        public static string binaryMerge { get => GetText("binaryMerge"); }
-        public static string checkingLast { get => GetText("checkingLast"); }
-        public static string cmd_appendUrlParams { get => GetText("cmd_appendUrlParams"); }
-        public static string cmd_autoSelect { get => GetText("cmd_autoSelect"); }
-        public static string cmd_binaryMerge { get => GetText("cmd_binaryMerge"); }
-        public static string cmd_useFFmpegConcatDemuxer { get => GetText("cmd_useFFmpegConcatDemuxer"); }
-        public static string cmd_checkSegmentsCount { get => GetText("cmd_checkSegmentsCount"); }
-        public static string cmd_decryptionBinaryPath { get => GetText("cmd_decryptionBinaryPath"); }
-        public static string cmd_delAfterDone { get => GetText("cmd_delAfterDone"); }
-        public static string cmd_ffmpegBinaryPath { get => GetText("cmd_ffmpegBinaryPath"); }
-        public static string cmd_mkvmergeBinaryPath { get => GetText("cmd_mkvmergeBinaryPath"); }
-        public static string cmd_baseUrl { get => GetText("cmd_baseUrl"); }
-        public static string cmd_maxSpeed { get => GetText("cmd_maxSpeed"); }
-        public static string cmd_adKeyword { get => GetText("cmd_adKeyword"); }
-        public static string cmd_moreHelp { get => GetText("cmd_moreHelp"); }
-        public static string cmd_header { get => GetText("cmd_header"); }
-        public static string cmd_muxImport { get => GetText("cmd_muxImport"); }
-        public static string cmd_muxImport_more { get => GetText("cmd_muxImport_more"); }
-        public static string cmd_selectVideo { get => GetText("cmd_selectVideo"); }
-        public static string cmd_dropVideo { get => GetText("cmd_dropVideo"); }
-        public static string cmd_selectVideo_more { get => GetText("cmd_selectVideo_more"); }
-        public static string cmd_selectAudio { get => GetText("cmd_selectAudio"); }
-        public static string cmd_dropAudio { get => GetText("cmd_dropAudio"); }
-        public static string cmd_selectAudio_more { get => GetText("cmd_selectAudio_more"); }
-        public static string cmd_selectSubtitle { get => GetText("cmd_selectSubtitle"); }
-        public static string cmd_dropSubtitle { get => GetText("cmd_dropSubtitle"); }
-        public static string cmd_selectSubtitle_more { get => GetText("cmd_selectSubtitle_more"); }
-        public static string cmd_custom_range { get => GetText("cmd_custom_range"); }
-        public static string cmd_customHLSMethod { get => GetText("cmd_customHLSMethod"); }
-        public static string cmd_customHLSKey { get => GetText("cmd_customHLSKey"); }
-        public static string cmd_customHLSIv { get => GetText("cmd_customHLSIv"); }
-        public static string cmd_Input { get => GetText("cmd_Input"); }
-        public static string cmd_forceAnsiConsole { get => GetText("cmd_forceAnsiConsole"); }
-        public static string cmd_noAnsiColor { get => GetText("cmd_noAnsiColor"); }
-        public static string cmd_keys { get => GetText("cmd_keys"); }
-        public static string cmd_keyText { get => GetText("cmd_keyText"); }
-        public static string cmd_loadKeyFailed { get => GetText("cmd_loadKeyFailed"); }
-        public static string cmd_logLevel { get => GetText("cmd_logLevel"); }
-        public static string cmd_MP4RealTimeDecryption { get => GetText("cmd_MP4RealTimeDecryption"); }
-        public static string cmd_saveDir { get => GetText("cmd_saveDir"); }
-        public static string cmd_saveName { get => GetText("cmd_saveName"); }
-        public static string cmd_savePattern { get => GetText("cmd_savePattern"); }
-        public static string cmd_skipDownload { get => GetText("cmd_skipDownload"); }
-        public static string cmd_noDateInfo { get => GetText("cmd_noDateInfo"); }
-        public static string cmd_noLog { get => GetText("cmd_noLog"); }
-        public static string cmd_skipMerge { get => GetText("cmd_skipMerge"); }
-        public static string cmd_subFormat { get => GetText("cmd_subFormat"); }
-        public static string cmd_subOnly { get => GetText("cmd_subOnly"); }
-        public static string cmd_subtitleFix { get => GetText("cmd_subtitleFix"); }
-        public static string cmd_threadCount { get => GetText("cmd_threadCount"); }
-        public static string cmd_downloadRetryCount { get => GetText("cmd_downloadRetryCount"); }
-        public static string cmd_tmpDir { get => GetText("cmd_tmpDir"); }
-        public static string cmd_uiLanguage { get => GetText("cmd_uiLanguage"); }
-        public static string cmd_urlProcessorArgs { get => GetText("cmd_urlProcessorArgs"); }
-        public static string cmd_useShakaPackager { get => GetText("cmd_useShakaPackager"); }
-        public static string cmd_concurrentDownload { get => GetText("cmd_concurrentDownload"); }
-        public static string cmd_useSystemProxy { get => GetText("cmd_useSystemProxy"); }
-        public static string cmd_customProxy { get => GetText("cmd_customProxy"); }
-        public static string cmd_customRange { get => GetText("cmd_customRange"); }
-        public static string cmd_liveKeepSegments { get => GetText("cmd_liveKeepSegments"); }
-        public static string cmd_livePipeMux { get => GetText("cmd_livePipeMux"); }
-        public static string cmd_liveRecordLimit { get => GetText("cmd_liveRecordLimit"); }
-        public static string cmd_taskStartAt { get => GetText("cmd_taskStartAt"); }
-        public static string cmd_liveWaitTime { get => GetText("cmd_liveWaitTime"); }
-        public static string cmd_liveTakeCount { get => GetText("cmd_liveTakeCount"); }
-        public static string cmd_liveFixVttByAudio { get => GetText("cmd_liveFixVttByAudio"); }
-        public static string cmd_liveRealTimeMerge { get => GetText("cmd_liveRealTimeMerge"); }
-        public static string cmd_livePerformAsVod { get => GetText("cmd_livePerformAsVod"); }
-        public static string cmd_muxAfterDone { get => GetText("cmd_muxAfterDone"); }
-        public static string cmd_muxAfterDone_more { get => GetText("cmd_muxAfterDone_more"); }
-        public static string cmd_writeMetaJson { get => GetText("cmd_writeMetaJson"); }
-        public static string liveLimit { get => GetText("liveLimit"); }
-        public static string realTimeDecMessage { get => GetText("realTimeDecMessage"); }
-        public static string liveLimitReached { get => GetText("liveLimitReached"); }
-        public static string saveName { get => GetText("saveName"); }
-        public static string taskStartAt { get => GetText("taskStartAt"); }
-        public static string namedPipeCreated { get => GetText("namedPipeCreated"); }
-        public static string namedPipeMux { get => GetText("namedPipeMux"); }
-        public static string partMerge { get => GetText("partMerge"); }
-        public static string fetch { get => GetText("fetch"); }
-        public static string ffmpegMerge { get => GetText("ffmpegMerge"); }
-        public static string ffmpegNotFound { get => GetText("ffmpegNotFound"); }
-        public static string fixingTTML { get => GetText("fixingTTML"); }
-        public static string fixingTTMLmp4 { get => GetText("fixingTTMLmp4"); }
-        public static string fixingVTT { get => GetText("fixingVTT"); }
-        public static string fixingVTTmp4 { get => GetText("fixingVTTmp4"); }
-        public static string keyProcessorNotFound { get => GetText("keyProcessorNotFound"); }
-        public static string liveFound { get => GetText("liveFound"); }
-        public static string loadingUrl { get => GetText("loadingUrl"); }
-        public static string masterM3u8Found { get => GetText("masterM3u8Found"); }
-        public static string matchDASH { get => GetText("matchDASH"); }
-        public static string matchMSS { get => GetText("matchMSS"); }
-        public static string matchTS { get => GetText("matchTS"); }
-        public static string matchHLS { get => GetText("matchHLS"); }
-        public static string notSupported { get => GetText("notSupported"); }
-        public static string parsingStream { get => GetText("parsingStream"); }
-        public static string promptChoiceText { get => GetText("promptChoiceText"); }
-        public static string promptInfo { get => GetText("promptInfo"); }
-        public static string promptTitle { get => GetText("promptTitle"); }
-        public static string readingInfo { get => GetText("readingInfo"); }
-        public static string searchKey { get => GetText("searchKey"); }
-        public static string segmentCountCheckNotPass { get => GetText("segmentCountCheckNotPass"); }
-        public static string selectedStream { get => GetText("selectedStream"); }
-        public static string startDownloading { get => GetText("startDownloading"); }
-        public static string streamsInfo { get => GetText("streamsInfo"); }
-        public static string writeJson { get => GetText("writeJson"); }
-        public static string noStreamsToDownload { get => GetText("noStreamsToDownload"); }
-        public static string newVersionFound { get => GetText("newVersionFound"); }
-        public static string processImageSub { get => GetText("processImageSub"); }
+        if (!StaticText.LANG_DIC.TryGetValue(key, out var textObj))
+            return "<...LANG TEXT MISSING...>";
 
-        private static string GetText(string key)
-        {
-            if (!StaticText.LANG_DIC.ContainsKey(key))
-                return "<...LANG TEXT MISSING...>";
-
-            var current = Thread.CurrentThread.CurrentUICulture.Name;
-            if (current == "zh-CN" || current == "zh-SG" || current == "zh-Hans")
-                return StaticText.LANG_DIC[key].ZH_CN;
-            else if (current.StartsWith("zh-"))
-                return StaticText.LANG_DIC[key].ZH_TW;
-            else
-                return StaticText.LANG_DIC[key].EN_US;
-        }
+        if (CurrentLoc is "zh-CN" or "zh-SG" or "zh-Hans")
+            return textObj.ZH_CN;
+        return CurrentLoc.StartsWith("zh-") ? textObj.ZH_TW : textObj.EN_US;
     }
 }

src/N_m3u8DL-RE.Common/Resource/TextContainer.cs

@@ -1,22 +1,15 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Resource;
 
-namespace N_m3u8DL_RE.Common.Resource
+internal class TextContainer
 {
-    internal class TextContainer
-    {
-        public string ZH_CN { get; set; }
-        public string ZH_TW { get; set; }
-        public string EN_US { get; set; }
+    public string ZH_CN { get; }
+    public string ZH_TW { get; }
+    public string EN_US { get; }
 
-        public TextContainer(string zhCN, string zhTW, string enUS)
-        {
-            ZH_CN = zhCN;
-            ZH_TW = zhTW;
-            EN_US = enUS;
-        }
+    public TextContainer(string zhCN, string zhTW, string enUS)
+    {
+        ZH_CN = zhCN;
+        ZH_TW = zhTW;
+        EN_US = enUS;
     }
 }

src/N_m3u8DL-RE.Common/Util/GlobalUtil.cs

@@ -1,80 +1,73 @@
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Common.JsonConverter;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Text.Json;
 using System.Text.Json.Serialization;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Common.Util
+namespace N_m3u8DL_RE.Common.Util;
+
+public static class GlobalUtil
 {
-    public class GlobalUtil
+    private static readonly JsonSerializerOptions Options = new()
     {
-        private static readonly JsonSerializerOptions Options = new JsonSerializerOptions
+        Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
+        WriteIndented = true,
+        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
+        Converters = { new JsonStringEnumConverter(), new BytesBase64Converter() }
+    };
+    private static readonly JsonContext Context = new JsonContext(Options);
+
+    public static string ConvertToJson(object o)
+    {
+        if (o is StreamSpec s)
         {
-            Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
-            WriteIndented = true,
-            DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
-            Converters = { new JsonStringEnumConverter(), new BytesBase64Converter() }
+            return JsonSerializer.Serialize(s, Context.StreamSpec);
+        }
+        if (o is IOrderedEnumerable<StreamSpec> ss)
+        {
+            return JsonSerializer.Serialize(ss, Context.IOrderedEnumerableStreamSpec);
+        }
+        if (o is List<StreamSpec> sList)
+        {
+            return JsonSerializer.Serialize(sList, Context.ListStreamSpec);
+        }
+        if (o is IEnumerable<MediaSegment> mList)
+        {
+            return JsonSerializer.Serialize(mList, Context.IEnumerableMediaSegment);
+        }
+        return "{NOT SUPPORTED}";
+    }
+
+    public static string FormatFileSize(double fileSize)
+    {
+        return fileSize switch
+        {
+            < 0 => throw new ArgumentOutOfRangeException(nameof(fileSize)),
+            >= 1024 * 1024 * 1024 => $"{fileSize / (1024 * 1024 * 1024):########0.00}GB",
+            >= 1024 * 1024 => $"{fileSize / (1024 * 1024):####0.00}MB",
+            >= 1024 => $"{fileSize / 1024:####0.00}KB",
+            _ => $"{fileSize:####0.00}B"
         };
-        private static readonly JsonContext Context = new JsonContext(Options);
+    }
 
-        public static string ConvertToJson(object o)
-        {
-            if (o is StreamSpec s)
-            {
-                return JsonSerializer.Serialize(s, Context.StreamSpec);
-            }
-            else if (o is IOrderedEnumerable<StreamSpec> ss)
-            {
-                return JsonSerializer.Serialize(ss, Context.IOrderedEnumerableStreamSpec);
-            }
-            else if (o is List<StreamSpec> sList)
-            {
-                return JsonSerializer.Serialize(sList, Context.ListStreamSpec);
-            }
-            else if (o is IEnumerable<MediaSegment> mList)
-            {
-                return JsonSerializer.Serialize(mList, Context.IEnumerableMediaSegment);
-            }
-            return "{NOT SUPPORTED}";
-        }
+    // 此函数用于格式化输出时长  
+    public static string FormatTime(int time)
+    {
+        TimeSpan ts = new TimeSpan(0, 0, time);
+        string str = "";
+        str = (ts.Hours.ToString("00") == "00" ? "" : ts.Hours.ToString("00") + "h") + ts.Minutes.ToString("00") + "m" + ts.Seconds.ToString("00") + "s";
+        return str;
+    }
 
-        public static string FormatFileSize(double fileSize)
-        {
-            return fileSize switch
-            {
-                < 0 => throw new ArgumentOutOfRangeException(nameof(fileSize)),
-                >= 1024 * 1024 * 1024 => string.Format("{0:########0.00}GB", (double)fileSize / (1024 * 1024 * 1024)),
-                >= 1024 * 1024 => string.Format("{0:####0.00}MB", (double)fileSize / (1024 * 1024)),
-                >= 1024 => string.Format("{0:####0.00}KB", (double)fileSize / 1024),
-                _ => string.Format("{0:####0.00}B", fileSize)
-            };
-        }
-
-        //此函数用于格式化输出时长  
-        public static string FormatTime(int time)
-        {
-            TimeSpan ts = new TimeSpan(0, 0, time);
-            string str = "";
-            str = (ts.Hours.ToString("00") == "00" ? "" : ts.Hours.ToString("00") + "h") + ts.Minutes.ToString("00") + "m" + ts.Seconds.ToString("00") + "s";
-            return str;
-        }
-
-        /// <summary>
-        /// 寻找可执行程序
-        /// </summary>
-        /// <param name="name"></param>
-        /// <returns></returns>
-        public static string? FindExecutable(string name)
-        {
-            var fileExt = OperatingSystem.IsWindows() ? ".exe" : "";
-            var searchPath = new[] { Environment.CurrentDirectory, Path.GetDirectoryName(Environment.ProcessPath) };
-            var envPath = Environment.GetEnvironmentVariable("PATH")?.Split(Path.PathSeparator) ??
-                          Array.Empty<string>();
-            return searchPath.Concat(envPath).Select(p => Path.Combine(p, name + fileExt)).FirstOrDefault(File.Exists);
-        }
+    /// <summary>
+    /// 寻找可执行程序
+    /// </summary>
+    /// <param name="name"></param>
+    /// <returns></returns>
+    public static string? FindExecutable(string name)
+    {
+        var fileExt = OperatingSystem.IsWindows() ? ".exe" : "";
+        var searchPath = new[] { Environment.CurrentDirectory, Path.GetDirectoryName(Environment.ProcessPath) };
+        var envPath = Environment.GetEnvironmentVariable("PATH")?.Split(Path.PathSeparator) ?? [];
+        return searchPath.Concat(envPath).Select(p => Path.Combine(p!, name + fileExt)).FirstOrDefault(File.Exists);
     }
 }

src/N_m3u8DL-RE.Common/Util/HTTPUtil.cs

@@ -3,139 +3,136 @@ using System.Net.Http.Headers;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Resource;
 
-namespace N_m3u8DL_RE.Common.Util
+namespace N_m3u8DL_RE.Common.Util;
+
+public static class HTTPUtil
 {
-    public class HTTPUtil
+    public static readonly HttpClientHandler HttpClientHandler = new()
     {
-        public static readonly HttpClientHandler HttpClientHandler = new()
-        {
-            AllowAutoRedirect = false,
-            AutomaticDecompression = DecompressionMethods.All,
-            ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => true,
-            MaxConnectionsPerServer = 1024,
-        };
+        AllowAutoRedirect = false,
+        AutomaticDecompression = DecompressionMethods.All,
+        ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => true,
+        MaxConnectionsPerServer = 1024,
+    };
 
-        public static readonly HttpClient AppHttpClient = new(HttpClientHandler)
-        {
-            Timeout = TimeSpan.FromSeconds(100),
-            DefaultRequestVersion = HttpVersion.Version20,
-            DefaultVersionPolicy = HttpVersionPolicy.RequestVersionOrHigher,
-        };
+    public static readonly HttpClient AppHttpClient = new(HttpClientHandler)
+    {
+        Timeout = TimeSpan.FromSeconds(100),
+        DefaultRequestVersion = HttpVersion.Version20,
+        DefaultVersionPolicy = HttpVersionPolicy.RequestVersionOrHigher,
+    };
 
-        private static async Task<HttpResponseMessage> DoGetAsync(string url, Dictionary<string, string>? headers = null)
+    private static async Task<HttpResponseMessage> DoGetAsync(string url, Dictionary<string, string>? headers = null)
+    {
+        Logger.Debug(ResString.fetch + url); 
+        using var webRequest = new HttpRequestMessage(HttpMethod.Get, url);
+        webRequest.Headers.TryAddWithoutValidation("Accept-Encoding", "gzip, deflate");
+        webRequest.Headers.CacheControl = CacheControlHeaderValue.Parse("no-cache");
+        webRequest.Headers.Connection.Clear();
+        if (headers != null)
         {
-            Logger.Debug(ResString.fetch + url); 
-            using var webRequest = new HttpRequestMessage(HttpMethod.Get, url);
-            webRequest.Headers.TryAddWithoutValidation("Accept-Encoding", "gzip, deflate");
-            webRequest.Headers.CacheControl = CacheControlHeaderValue.Parse("no-cache");
-            webRequest.Headers.Connection.Clear();
-            if (headers != null)
+            foreach (var item in headers)
             {
-                foreach (var item in headers)
+                webRequest.Headers.TryAddWithoutValidation(item.Key, item.Value);
+            }
+        }
+        Logger.Debug(webRequest.Headers.ToString());
+        // 手动处理跳转，以免自定义Headers丢失
+        var webResponse = await AppHttpClient.SendAsync(webRequest, HttpCompletionOption.ResponseHeadersRead);
+        if (((int)webResponse.StatusCode).ToString().StartsWith("30"))
+        {
+            HttpResponseHeaders respHeaders = webResponse.Headers;
+            Logger.Debug(respHeaders.ToString());
+            if (respHeaders.Location != null)
+            {
+                var redirectedUrl = "";
+                if (!respHeaders.Location.IsAbsoluteUri)
                 {
-                    webRequest.Headers.TryAddWithoutValidation(item.Key, item.Value);
+                    Uri uri1 = new Uri(url);
+                    Uri uri2 = new Uri(uri1, respHeaders.Location);
+                    redirectedUrl = uri2.ToString();
+                }
+                else
+                {
+                    redirectedUrl = respHeaders.Location.AbsoluteUri;
+                }
+                    
+                if (redirectedUrl != url)
+                {
+                    Logger.Extra($"Redirected => {redirectedUrl}");
+                    return await DoGetAsync(redirectedUrl, headers);
                 }
             }
-            Logger.Debug(webRequest.Headers.ToString());
-            //手动处理跳转，以免自定义Headers丢失
-            var webResponse = await AppHttpClient.SendAsync(webRequest, HttpCompletionOption.ResponseHeadersRead);
-            if (((int)webResponse.StatusCode).ToString().StartsWith("30"))
-            {
-                HttpResponseHeaders respHeaders = webResponse.Headers;
-                Logger.Debug(respHeaders.ToString());
-                if (respHeaders != null && respHeaders.Location != null)
-                {
-                    var redirectedUrl = "";
-                    if (!respHeaders.Location.IsAbsoluteUri)
-                    {
-                        Uri uri1 = new Uri(url);
-                        Uri uri2 = new Uri(uri1, respHeaders.Location);
-                        redirectedUrl = uri2.ToString();
-                    }
-                    else
-                    {
-                        redirectedUrl = respHeaders.Location.AbsoluteUri;
-                    }
-                    
-                    if (redirectedUrl != url)
-                    {
-                        Logger.Extra($"Redirected => {redirectedUrl}");
-                        return await DoGetAsync(redirectedUrl, headers);
-                    }
-                }
-            }
-            //手动将跳转后的URL设置进去, 用于后续取用
-            webResponse.Headers.Location = new Uri(url);
-            webResponse.EnsureSuccessStatusCode();
-            return webResponse;
         }
+        // 手动将跳转后的URL设置进去, 用于后续取用
+        webResponse.Headers.Location = new Uri(url);
+        webResponse.EnsureSuccessStatusCode();
+        return webResponse;
+    }
 
-        public static async Task<byte[]> GetBytesAsync(string url, Dictionary<string, string>? headers = null)
+    public static async Task<byte[]> GetBytesAsync(string url, Dictionary<string, string>? headers = null)
+    {
+        if (url.StartsWith("file:"))
         {
-            if (url.StartsWith("file:"))
-            {
-                return await File.ReadAllBytesAsync(new Uri(url).LocalPath);
-            }
-            byte[] bytes = new byte[0];
-            var webResponse = await DoGetAsync(url, headers);
-            bytes = await webResponse.Content.ReadAsByteArrayAsync();
-            Logger.Debug(HexUtil.BytesToHex(bytes, " "));
-            return bytes;
+            return await File.ReadAllBytesAsync(new Uri(url).LocalPath);
         }
+        var webResponse = await DoGetAsync(url, headers);
+        var bytes = await webResponse.Content.ReadAsByteArrayAsync();
+        Logger.Debug(HexUtil.BytesToHex(bytes, " "));
+        return bytes;
+    }
 
-        /// <summary>
-        /// 获取网页源码
-        /// </summary>
-        /// <param name="url"></param>
-        /// <param name="headers"></param>
-        /// <returns></returns>
-        public static async Task<string> GetWebSourceAsync(string url, Dictionary<string, string>? headers = null)
+    /// <summary>
+    /// 获取网页源码
+    /// </summary>
+    /// <param name="url"></param>
+    /// <param name="headers"></param>
+    /// <returns></returns>
+    public static async Task<string> GetWebSourceAsync(string url, Dictionary<string, string>? headers = null)
+    {
+        var webResponse = await DoGetAsync(url, headers);
+        string htmlCode = await webResponse.Content.ReadAsStringAsync();
+        Logger.Debug(htmlCode);
+        return htmlCode;
+    }
+
+    private static bool CheckMPEG2TS(HttpResponseMessage? webResponse)
+    {
+        var mediaType = webResponse?.Content.Headers.ContentType?.MediaType?.ToLower();
+        return mediaType is "video/ts" or "video/mp2t" or "video/mpeg";
+    }
+
+    /// <summary>
+    /// 获取网页源码和跳转后的URL
+    /// </summary>
+    /// <param name="url"></param>
+    /// <param name="headers"></param>
+    /// <returns>(Source Code, RedirectedUrl)</returns>
+    public static async Task<(string, string)> GetWebSourceAndNewUrlAsync(string url, Dictionary<string, string>? headers = null)
+    {
+        string htmlCode;
+        var webResponse = await DoGetAsync(url, headers);
+        if (CheckMPEG2TS(webResponse))
+        {
+            htmlCode = ResString.ReLiveTs;
+        }
+        else
         {
-            string htmlCode = string.Empty;
-            var webResponse = await DoGetAsync(url, headers);
             htmlCode = await webResponse.Content.ReadAsStringAsync();
-            Logger.Debug(htmlCode);
-            return htmlCode;
         }
+        Logger.Debug(htmlCode);
+        return (htmlCode, webResponse.Headers.Location != null ? webResponse.Headers.Location.AbsoluteUri : url);
+    }
 
-        private static bool CheckMPEG2TS(HttpResponseMessage? webResponse)
-        {
-            var mediaType = webResponse?.Content.Headers.ContentType?.MediaType?.ToLower();
-            return mediaType == "video/ts" || mediaType == "video/mp2t" || mediaType == "video/mpeg";
-        }
-
-        /// <summary>
-        /// 获取网页源码和跳转后的URL
-        /// </summary>
-        /// <param name="url"></param>
-        /// <param name="headers"></param>
-        /// <returns>(Source Code, RedirectedUrl)</returns>
-        public static async Task<(string, string)> GetWebSourceAndNewUrlAsync(string url, Dictionary<string, string>? headers = null)
-        {
-            string htmlCode = string.Empty;
-            var webResponse = await DoGetAsync(url, headers);
-            if (CheckMPEG2TS(webResponse))
-            {
-                htmlCode = ResString.ReLiveTs;
-            }
-            else
-            {
-                htmlCode = await webResponse.Content.ReadAsStringAsync();
-            }
-            Logger.Debug(htmlCode);
-            return (htmlCode, webResponse.Headers.Location != null ? webResponse.Headers.Location.AbsoluteUri : url);
-        }
-
-        public static async Task<string> GetPostResponseAsync(string Url, byte[] postData)
-        {
-            string htmlCode = string.Empty;
-            using HttpRequestMessage request = new(HttpMethod.Post, Url);
-            request.Headers.TryAddWithoutValidation("Content-Type", "application/json");
-            request.Headers.TryAddWithoutValidation("Content-Length", postData.Length.ToString());
-            request.Content = new ByteArrayContent(postData);
-            var webResponse = await AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
-            htmlCode = await webResponse.Content.ReadAsStringAsync();
-            return htmlCode;
-        }
+    public static async Task<string> GetPostResponseAsync(string Url, byte[] postData)
+    {
+        string htmlCode;
+        using HttpRequestMessage request = new(HttpMethod.Post, Url);
+        request.Headers.TryAddWithoutValidation("Content-Type", "application/json");
+        request.Headers.TryAddWithoutValidation("Content-Length", postData.Length.ToString());
+        request.Content = new ByteArrayContent(postData);
+        var webResponse = await AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
+        htmlCode = await webResponse.Content.ReadAsStringAsync();
+        return htmlCode;
     }
 }

src/N_m3u8DL-RE.Common/Util/HexUtil.cs

@@ -1,48 +1,39 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Common.Util;
 
-namespace N_m3u8DL_RE.Common.Util
+public static class HexUtil
 {
-    public class HexUtil
+    public static string BytesToHex(byte[] data, string split = "")
     {
-        public static string BytesToHex(byte[] data, string split = "")
+        return BitConverter.ToString(data).Replace("-", split);
+    }
+
+    /// <summary>
+    /// 判断是不是HEX字符串
+    /// </summary>
+    /// <param name="input"></param>
+    /// <returns></returns>
+    public static bool TryParseHexString(string input, out byte[]? bytes)
+    {
+        bytes = null;
+        input = input.ToUpper();
+        if (input.StartsWith("0X"))
+            input = input[2..];
+        if (input.Length % 2 != 0)
+            return false;
+        if (input.Any(c => !"0123456789ABCDEF".Contains(c)))
+            return false;
+        bytes = HexToBytes(input);
+        return true;
+    }
+
+    public static byte[] HexToBytes(string hex)
+    {
+        var hexSpan = hex.AsSpan().Trim();
+        if (hexSpan.StartsWith("0x") || hexSpan.StartsWith("0X"))
         {
-            return BitConverter.ToString(data).Replace("-", split);
+            hexSpan = hexSpan[2..];
         }
 
-        /// <summary>
-        /// 判断是不是HEX字符串
-        /// </summary>
-        /// <param name="input"></param>
-        /// <returns></returns>
-        public static bool TryParseHexString(string input, out byte[]? bytes)
-        {
-            bytes = null;
-            input = input.ToUpper();
-            if (input.StartsWith("0X"))
-                input = input[2..];
-            if (input.Length % 2 != 0)
-                return false;
-            if (input.Any(c => !"0123456789ABCDEF".Contains(c)))
-                return false;
-            bytes = HexToBytes(input);
-            return true;
-        }
-
-        public static byte[] HexToBytes(string hex)
-        {
-            hex = hex.Trim();
-            if (hex.StartsWith("0x") || hex.StartsWith("0X"))
-                hex = hex.Substring(2);
-            byte[] bytes = new byte[hex.Length / 2];
-
-            for (int i = 0; i < hex.Length; i += 2)
-                bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
-
-            return bytes;
-        }
+        return Convert.FromHexString(hexSpan);
     }
 }

src/N_m3u8DL-RE.Common/Util/RetryUtil.cs

@@ -4,7 +4,7 @@ using Spectre.Console;
 
 namespace N_m3u8DL_RE.Common.Util;
 
-public class RetryUtil
+public static class RetryUtil
 {
     public static async Task<T?> WebRequestRetryAsync<T>(Func<Task<T>> funcAsync, int maxRetries = 10, int retryDelayMilliseconds = 1500, int retryDelayIncrementMilliseconds = 0)
     {

src/N_m3u8DL-RE.Parser/Config/ParserConfig.cs

@@ -3,66 +3,67 @@ using N_m3u8DL_RE.Parser.Processor;
 using N_m3u8DL_RE.Parser.Processor.DASH;
 using N_m3u8DL_RE.Parser.Processor.HLS;
 
-namespace N_m3u8DL_RE.Parser.Config
+namespace N_m3u8DL_RE.Parser.Config;
+
+public class ParserConfig
 {
-    public class ParserConfig
-    {
-        public string Url { get; set; }
+    public string Url { get; set; } = string.Empty;
 
-        public string OriginalUrl { get; set; }
+    public string OriginalUrl { get; set; } = string.Empty;
 
-        public string BaseUrl { get; set; }
+    public string BaseUrl { get; set; } = string.Empty;
     
-        public Dictionary<string, string> Headers { get; set; } = new Dictionary<string, string>();
+    public Dictionary<string, string> CustomParserArgs { get; } = new();
 
-        /// <summary>
-        /// 内容前置处理器. 调用顺序与列表顺序相同
-        /// </summary>
-        public IList<ContentProcessor> ContentProcessors { get; } = new List<ContentProcessor>() { new DefaultHLSContentProcessor(), new DefaultDASHContentProcessor() };
+    public Dictionary<string, string> Headers { get; init; } = new();
 
-        /// <summary>
-        /// 添加分片URL前置处理器. 调用顺序与列表顺序相同
-        /// </summary>
-        public IList<UrlProcessor> UrlProcessors { get; } = new List<UrlProcessor>() { new DefaultUrlProcessor() };
+    /// <summary>
+    /// 内容前置处理器. 调用顺序与列表顺序相同
+    /// </summary>
+    public IList<ContentProcessor> ContentProcessors { get; } = new List<ContentProcessor>() { new DefaultHLSContentProcessor(), new DefaultDASHContentProcessor() };
 
-        /// <summary>
-        /// KEY解析器. 调用顺序与列表顺序相同
-        /// </summary>
-        public IList<KeyProcessor> KeyProcessors { get; } = new List<KeyProcessor>() { new DefaultHLSKeyProcessor() };
+    /// <summary>
+    /// 添加分片URL前置处理器. 调用顺序与列表顺序相同
+    /// </summary>
+    public IList<UrlProcessor> UrlProcessors { get; } = new List<UrlProcessor>() { new DefaultUrlProcessor() };
+
+    /// <summary>
+    /// KEY解析器. 调用顺序与列表顺序相同
+    /// </summary>
+    public IList<KeyProcessor> KeyProcessors { get; } = new List<KeyProcessor>() { new DefaultHLSKeyProcessor() };
 
 
-        /// <summary>
-        /// 自定义的加密方式
-        /// </summary>
-        public EncryptMethod? CustomMethod { get; set; }
+    /// <summary>
+    /// 自定义的加密方式
+    /// </summary>
+    public EncryptMethod? CustomMethod { get; set; }
 
-        /// <summary>
-        /// 自定义的解密KEY
-        /// </summary>
-        public byte[]? CustomeKey { get; set; }
+    /// <summary>
+    /// 自定义的解密KEY
+    /// </summary>
+    public byte[]? CustomeKey { get; set; }
 
-        /// <summary>
-        /// 自定义的解密IV
-        /// </summary>
-        public byte[]? CustomeIV { get; set; }
+    /// <summary>
+    /// 自定义的解密IV
+    /// </summary>
+    public byte[]? CustomeIV { get; set; }
 
-        /// <summary>
-        /// 组装视频分段的URL时，是否要把原本URL后的参数也加上去
-        /// 如 Base URL = "http://xxx.com/playlist.m3u8?hmac=xxx&token=xxx"
-        /// 相对路径 = clip_01.ts
-        /// 如果 AppendUrlParams=false，得 http://xxx.com/clip_01.ts
-        /// 如果 AppendUrlParams=true，得 http://xxx.com/clip_01.ts?hmac=xxx&token=xxx
-        /// </summary>
-        public bool AppendUrlParams { get; set; } = false;
+    /// <summary>
+    /// 组装视频分段的URL时，是否要把原本URL后的参数也加上去
+    /// 如 Base URL = "http://xxx.com/playlist.m3u8?hmac=xxx&token=xxx"
+    /// 相对路径 = clip_01.ts
+    /// 如果 AppendUrlParams=false，得 http://xxx.com/clip_01.ts
+    /// 如果 AppendUrlParams=true，得 http://xxx.com/clip_01.ts?hmac=xxx&token=xxx
+    /// </summary>
+    public bool AppendUrlParams { get; set; } = false;
 
-        /// <summary>
-        /// 此参数将会传递给URL Processor中
-        /// </summary>
-        public string? UrlProcessorArgs { get; set; }
+    /// <summary>
+    /// 此参数将会传递给URL Processor中
+    /// </summary>
+    public string? UrlProcessorArgs { get; set; }
 
-        /// <summary>
-        /// KEY重试次数
-        /// </summary>
-        public int KeyRetryCount { get; set; } = 3;
-    }
+    /// <summary>
+    /// KEY重试次数
+    /// </summary>
+    public int KeyRetryCount { get; set; } = 3;
 }

src/N_m3u8DL-RE.Parser/Constants/DASHTags.cs

@@ -1,16 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Parser.Constants;
 
-namespace N_m3u8DL_RE.Parser.Constants
+internal static class DASHTags
 {
-    internal class DASHTags
-    {
-        public static string TemplateRepresentationID = "$RepresentationID$";
-        public static string TemplateBandwidth = "$Bandwidth$";
-        public static string TemplateNumber = "$Number$";
-        public static string TemplateTime = "$Time$";
-    }
+    public const string TemplateRepresentationID = "$RepresentationID$";
+    public const string TemplateBandwidth = "$Bandwidth$";
+    public const string TemplateNumber = "$Number$";
+    public const string TemplateTime = "$Time$";
 }

src/N_m3u8DL-RE.Parser/Constants/HLSTags.cs

@@ -1,38 +1,31 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Parser.Constants;
 
-namespace N_m3u8DL_RE.Parser.Constants
+internal static class HLSTags
 {
-    internal class HLSTags
-    {
-        public static string ext_m3u = "#EXTM3U";
-        public static string ext_x_targetduration = "#EXT-X-TARGETDURATION";
-        public static string ext_x_media_sequence = "#EXT-X-MEDIA-SEQUENCE";
-        public static string ext_x_discontinuity_sequence = "#EXT-X-DISCONTINUITY-SEQUENCE";
-        public static string ext_x_program_date_time = "#EXT-X-PROGRAM-DATE-TIME";
-        public static string ext_x_media = "#EXT-X-MEDIA";
-        public static string ext_x_playlist_type = "#EXT-X-PLAYLIST-TYPE";
-        public static string ext_x_key = "#EXT-X-KEY";
-        public static string ext_x_stream_inf = "#EXT-X-STREAM-INF";
-        public static string ext_x_version = "#EXT-X-VERSION";
-        public static string ext_x_allow_cache = "#EXT-X-ALLOW-CACHE";
-        public static string ext_x_endlist = "#EXT-X-ENDLIST";
-        public static string extinf = "#EXTINF";
-        public static string ext_i_frames_only = "#EXT-X-I-FRAMES-ONLY";
-        public static string ext_x_byterange = "#EXT-X-BYTERANGE";
-        public static string ext_x_i_frame_stream_inf = "#EXT-X-I-FRAME-STREAM-INF";
-        public static string ext_x_discontinuity = "#EXT-X-DISCONTINUITY";
-        public static string ext_x_cue_out_start = "#EXT-X-CUE-OUT";
-        public static string ext_x_cue_out = "#EXT-X-CUE-OUT-CONT";
-        public static string ext_is_independent_segments = "#EXT-X-INDEPENDENT-SEGMENTS";
-        public static string ext_x_scte35 = "#EXT-OATCLS-SCTE35";
-        public static string ext_x_cue_start = "#EXT-X-CUE-OUT";
-        public static string ext_x_cue_end = "#EXT-X-CUE-IN";
-        public static string ext_x_cue_span = "#EXT-X-CUE-SPAN";
-        public static string ext_x_map = "#EXT-X-MAP";
-        public static string ext_x_start = "#EXT-X-START";
-    }
+    public const string ext_m3u = "#EXTM3U";
+    public const string ext_x_targetduration = "#EXT-X-TARGETDURATION";
+    public const string ext_x_media_sequence = "#EXT-X-MEDIA-SEQUENCE";
+    public const string ext_x_discontinuity_sequence = "#EXT-X-DISCONTINUITY-SEQUENCE";
+    public const string ext_x_program_date_time = "#EXT-X-PROGRAM-DATE-TIME";
+    public const string ext_x_media = "#EXT-X-MEDIA";
+    public const string ext_x_playlist_type = "#EXT-X-PLAYLIST-TYPE";
+    public const string ext_x_key = "#EXT-X-KEY";
+    public const string ext_x_stream_inf = "#EXT-X-STREAM-INF";
+    public const string ext_x_version = "#EXT-X-VERSION";
+    public const string ext_x_allow_cache = "#EXT-X-ALLOW-CACHE";
+    public const string ext_x_endlist = "#EXT-X-ENDLIST";
+    public const string extinf = "#EXTINF";
+    public const string ext_i_frames_only = "#EXT-X-I-FRAMES-ONLY";
+    public const string ext_x_byterange = "#EXT-X-BYTERANGE";
+    public const string ext_x_i_frame_stream_inf = "#EXT-X-I-FRAME-STREAM-INF";
+    public const string ext_x_discontinuity = "#EXT-X-DISCONTINUITY";
+    public const string ext_x_cue_out_start = "#EXT-X-CUE-OUT";
+    public const string ext_x_cue_out = "#EXT-X-CUE-OUT-CONT";
+    public const string ext_is_independent_segments = "#EXT-X-INDEPENDENT-SEGMENTS";
+    public const string ext_x_scte35 = "#EXT-OATCLS-SCTE35";
+    public const string ext_x_cue_start = "#EXT-X-CUE-OUT";
+    public const string ext_x_cue_end = "#EXT-X-CUE-IN";
+    public const string ext_x_cue_span = "#EXT-X-CUE-SPAN";
+    public const string ext_x_map = "#EXT-X-MAP";
+    public const string ext_x_start = "#EXT-X-START";
 }

src/N_m3u8DL-RE.Parser/Constants/MSSTags.cs

@@ -1,16 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Parser.Constants;
 
-namespace N_m3u8DL_RE.Parser.Constants
+internal static class MSSTags
 {
-    internal class MSSTags
-    {
-        public static string Bitrate = "{Bitrate}";
-        public static string Bitrate_BK = "{bitrate}";
-        public static string StartTime = "{start_time}";
-        public static string StartTime_BK = "{start time}";
-    }
+    public const string Bitrate = "{Bitrate}";
+    public const string Bitrate_BK = "{bitrate}";
+    public const string StartTime = "{start_time}";
+    public const string StartTime_BK = "{start time}";
 }

src/N_m3u8DL-RE.Parser/Extractor/IExtractor.cs

@@ -1,27 +1,21 @@
 using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Common.Entity;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using N_m3u8DL_RE.Common.Enum;
 
-namespace N_m3u8DL_RE.Parser.Extractor
+namespace N_m3u8DL_RE.Parser.Extractor;
+
+public interface IExtractor
 {
-    public interface IExtractor
-    {
-        ExtractorType ExtractorType { get; }
+    ExtractorType ExtractorType { get; }
 
-        ParserConfig ParserConfig { get; set; }
+    ParserConfig ParserConfig { get; set; }
 
-        Task<List<StreamSpec>> ExtractStreamsAsync(string rawText);
+    Task<List<StreamSpec>> ExtractStreamsAsync(string rawText);
 
-        Task FetchPlayListAsync(List<StreamSpec> streamSpecs);
-        Task RefreshPlayListAsync(List<StreamSpec> streamSpecs);
+    Task FetchPlayListAsync(List<StreamSpec> streamSpecs);
+    Task RefreshPlayListAsync(List<StreamSpec> streamSpecs);
 
-        string PreProcessUrl(string url);
+    string PreProcessUrl(string url);
 
-        void PreProcessContent();
-    }
+    void PreProcessContent();
 }

src/N_m3u8DL-RE.Parser/Extractor/LiveTSExtractor.cs

@@ -3,51 +3,50 @@ using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Common.Resource;
 using N_m3u8DL_RE.Parser.Config;
 
-namespace N_m3u8DL_RE.Parser.Extractor
+namespace N_m3u8DL_RE.Parser.Extractor;
+
+internal class LiveTSExtractor : IExtractor
 {
-    internal class LiveTSExtractor : IExtractor
+    public ExtractorType ExtractorType => ExtractorType.HTTP_LIVE;
+
+    public ParserConfig ParserConfig {get; set;}
+
+    public LiveTSExtractor(ParserConfig parserConfig)
     {
-        public ExtractorType ExtractorType => ExtractorType.HTTP_LIVE;
+        this.ParserConfig = parserConfig;
+    }
 
-        public ParserConfig ParserConfig {get; set;}
-
-        public LiveTSExtractor(ParserConfig parserConfig)
+    public Task<List<StreamSpec>> ExtractStreamsAsync(string rawText)
+    {
+        return Task.FromResult(new List<StreamSpec>
         {
-            this.ParserConfig = parserConfig;
-        }
-
-        public async Task<List<StreamSpec>> ExtractStreamsAsync(string rawText)
-        {
-            return new List<StreamSpec>()
+            new()
             {
-                new StreamSpec()
-                {
-                    OriginalUrl = ParserConfig.OriginalUrl,
-                    Url = ParserConfig.Url,
-                    Playlist = new Playlist(),
-                    GroupId = ResString.ReLiveTs
-                }
-            };
-        }
+                OriginalUrl = ParserConfig.OriginalUrl,
+                Url = ParserConfig.Url,
+                Playlist = new Playlist(),
+                GroupId = ResString.ReLiveTs
+            }
+        });
+    }
 
-        public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
-        {
-            throw new NotImplementedException();
-        }
+    public Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
+    {
+        throw new NotImplementedException();
+    }
 
-        public async void PreProcessContent()
-        {
-            throw new NotImplementedException();
-        }
+    public void PreProcessContent()
+    {
+        throw new NotImplementedException();
+    }
 
-        public string PreProcessUrl(string url)
-        {
-            throw new NotImplementedException();
-        }
+    public string PreProcessUrl(string url)
+    {
+        throw new NotImplementedException();
+    }
 
-        public Task RefreshPlayListAsync(List<StreamSpec> streamSpecs)
-        {
-            throw new NotImplementedException();
-        }
+    public Task RefreshPlayListAsync(List<StreamSpec> streamSpecs)
+    {
+        throw new NotImplementedException();
     }
 }

src/N_m3u8DL-RE.Parser/Extractor/MSSExtractor.cs

@@ -6,396 +6,382 @@ using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Parser.Constants;
 using N_m3u8DL_RE.Parser.Mp4;
 using N_m3u8DL_RE.Parser.Util;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Security.Cryptography;
-using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-using System.Xml;
 using System.Xml.Linq;
 
-namespace N_m3u8DL_RE.Parser.Extractor
+namespace N_m3u8DL_RE.Parser.Extractor;
+
+// Microsoft Smooth Streaming
+// https://test.playready.microsoft.com/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/manifest
+// file:///C:/Users/nilaoda/Downloads/[MS-SSTR]-180316.pdf
+internal partial class MSSExtractor : IExtractor
 {
-    //Microsoft Smooth Streaming
-    //https://test.playready.microsoft.com/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/manifest
-    //file:///C:/Users/nilaoda/Downloads/[MS-SSTR]-180316.pdf
-    internal partial class MSSExtractor : IExtractor
+    [GeneratedRegex("00000001\\d7([0-9a-fA-F]{6})")]
+    private static partial Regex VCodecsRegex();
+
+    ////////////////////////////////////////
+        
+    private static EncryptMethod DEFAULT_METHOD = EncryptMethod.CENC;
+
+    public ExtractorType ExtractorType => ExtractorType.MSS;
+
+    private string IsmUrl = string.Empty;
+    private string BaseUrl = string.Empty;
+    private string IsmContent = string.Empty;
+    public ParserConfig ParserConfig { get; set; }
+
+    public MSSExtractor(ParserConfig parserConfig)
     {
-        [GeneratedRegex("00000001\\d7([0-9a-fA-F]{6})")]
-        private static partial Regex VCodecsRegex();
+        this.ParserConfig = parserConfig;
+        SetInitUrl();
+    }
 
-        ////////////////////////////////////////
+    private void SetInitUrl()
+    {
+        this.IsmUrl = ParserConfig.Url ?? string.Empty;
+        this.BaseUrl = !string.IsNullOrEmpty(ParserConfig.BaseUrl) ? ParserConfig.BaseUrl : this.IsmUrl;
+    }
 
-        private static EncryptMethod DEFAULT_METHOD = EncryptMethod.CENC;
+    public Task<List<StreamSpec>> ExtractStreamsAsync(string rawText)
+    {
+        var streamList = new List<StreamSpec>();
+        this.IsmContent = rawText;
+        this.PreProcessContent();
 
-        public ExtractorType ExtractorType => ExtractorType.MSS;
+        var xmlDocument = XDocument.Parse(IsmContent);
 
-        private string IsmUrl = string.Empty;
-        private string BaseUrl = string.Empty;
-        private string IsmContent = string.Empty;
-        public ParserConfig ParserConfig { get; set; }
+        // 选中第一个SmoothStreamingMedia节点
+        var ssmElement = xmlDocument.Elements().First(e => e.Name.LocalName == "SmoothStreamingMedia");
+        var timeScaleStr = ssmElement.Attribute("TimeScale")?.Value ?? "10000000";
+        var durationStr = ssmElement.Attribute("Duration")?.Value;
+        var timescale = Convert.ToInt32(timeScaleStr);
+        var isLiveStr = ssmElement.Attribute("IsLive")?.Value;
+        bool isLive = Convert.ToBoolean(isLiveStr ?? "FALSE");
 
-        public MSSExtractor(ParserConfig parserConfig)
+        var isProtection = false;
+        var protectionSystemId = "";
+        var protectionData = "";
+
+        // 加密检测
+        var protectElement = ssmElement.Elements().FirstOrDefault(e => e.Name.LocalName == "Protection");
+        if (protectElement != null)
         {
-            this.ParserConfig = parserConfig;
-            SetInitUrl();
-        }
-
-        private void SetInitUrl()
-        {
-            this.IsmUrl = ParserConfig.Url ?? string.Empty;
-            if (!string.IsNullOrEmpty(ParserConfig.BaseUrl))
-                this.BaseUrl = ParserConfig.BaseUrl;
-            else
-                this.BaseUrl = this.IsmUrl;
-        }
-
-        public async Task<List<StreamSpec>> ExtractStreamsAsync(string rawText)
-        {
-            var streamList = new List<StreamSpec>();
-            this.IsmContent = rawText;
-            this.PreProcessContent();
-
-            var xmlDocument = XDocument.Parse(IsmContent);
-
-            //选中第一个SmoothStreamingMedia节点
-            var ssmElement = xmlDocument.Elements().First(e => e.Name.LocalName == "SmoothStreamingMedia");
-            var timeScaleStr = ssmElement.Attribute("TimeScale")?.Value ?? "10000000";
-            var durationStr = ssmElement.Attribute("Duration")?.Value;
-            var timescale = Convert.ToInt32(timeScaleStr);
-            var isLiveStr = ssmElement.Attribute("IsLive")?.Value;
-            bool isLive = Convert.ToBoolean(isLiveStr ?? "FALSE");
-
-            var isProtection = false;
-            var protectionSystemId = "";
-            var protectionData = "";
-
-            //加密检测
-            var protectElement = ssmElement.Elements().FirstOrDefault(e => e.Name.LocalName == "Protection");
-            if (protectElement != null)
+            var protectionHeader = protectElement.Element("ProtectionHeader");
+            if (protectionHeader != null)
             {
-                var protectionHeader = protectElement.Element("ProtectionHeader");
-                if (protectionHeader != null)
-                {
-                    isProtection = true;
-                    protectionSystemId = protectionHeader.Attribute("SystemID")?.Value ?? "9A04F079-9840-4286-AB92-E65BE0885F95";
-                    protectionData = HexUtil.BytesToHex(Convert.FromBase64String(protectionHeader.Value));
-                }
+                isProtection = true;
+                protectionSystemId = protectionHeader.Attribute("SystemID")?.Value ?? "9A04F079-9840-4286-AB92-E65BE0885F95";
+                protectionData = HexUtil.BytesToHex(Convert.FromBase64String(protectionHeader.Value));
             }
+        }
 
-            //所有StreamIndex节点
-            var streamIndexElements = ssmElement.Elements().Where(e => e.Name.LocalName == "StreamIndex");
+        // 所有StreamIndex节点
+        var streamIndexElements = ssmElement.Elements().Where(e => e.Name.LocalName == "StreamIndex");
 
-            foreach (var streamIndex in streamIndexElements)
+        foreach (var streamIndex in streamIndexElements)
+        {
+            var type = streamIndex.Attribute("Type")?.Value; // "video" / "audio" / "text"
+            var name = streamIndex.Attribute("Name")?.Value;
+            var subType = streamIndex.Attribute("Subtype")?.Value; // text track
+            // 如果有则不从QualityLevel读取
+            // Bitrate = "{bitrate}" / "{Bitrate}"
+            // StartTimeSubstitution = "{start time}" / "{start_time}"
+            var urlPattern = streamIndex.Attribute("Url")?.Value;
+            var language = streamIndex.Attribute("Language")?.Value;
+            // 去除不规范的语言标签
+            if (language?.Length != 3) language = null;
+
+            // 所有c节点
+            var cElements = streamIndex.Elements().Where(e => e.Name.LocalName == "c");
+
+            // 所有QualityLevel节点
+            var qualityLevelElements = streamIndex.Elements().Where(e => e.Name.LocalName == "QualityLevel");
+
+            foreach (var qualityLevel in qualityLevelElements)
             {
-                var type = streamIndex.Attribute("Type")?.Value; //"video" / "audio" / "text"
-                var name = streamIndex.Attribute("Name")?.Value;
-                var subType = streamIndex.Attribute("Subtype")?.Value; //text track
-                //如果有则不从QualityLevel读取
-                //Bitrate = "{bitrate}" / "{Bitrate}"
-                //StartTimeSubstitution = "{start time}" / "{start_time}"
-                var urlPattern = streamIndex.Attribute("Url")?.Value;
-                var language = streamIndex.Attribute("Language")?.Value;
-                //去除不规范的语言标签
-                if (language?.Length != 3) language = null;
+                urlPattern = (qualityLevel.Attribute("Url")?.Value ?? urlPattern)!
+                    .Replace(MSSTags.Bitrate_BK, MSSTags.Bitrate).Replace(MSSTags.StartTime_BK, MSSTags.StartTime);
+                var fourCC = qualityLevel.Attribute("FourCC")!.Value.ToUpper();
+                var samplingRateStr = qualityLevel.Attribute("SamplingRate")?.Value;
+                var bitsPerSampleStr = qualityLevel.Attribute("BitsPerSample")?.Value;
+                var nalUnitLengthFieldStr = qualityLevel.Attribute("NALUnitLengthField")?.Value;
+                var indexStr = qualityLevel.Attribute("Index")?.Value;
+                var codecPrivateData = qualityLevel.Attribute("CodecPrivateData")?.Value ?? "";
+                var audioTag = qualityLevel.Attribute("AudioTag")?.Value;
+                var bitrate = Convert.ToInt32(qualityLevel.Attribute("Bitrate")?.Value ?? "0");
+                var width = Convert.ToInt32(qualityLevel.Attribute("MaxWidth")?.Value ?? "0");
+                var height = Convert.ToInt32(qualityLevel.Attribute("MaxHeight")?.Value ?? "0");
+                var channels = qualityLevel.Attribute("Channels")?.Value;
 
-                //所有c节点
-                var cElements = streamIndex.Elements().Where(e => e.Name.LocalName == "c");
-
-                //所有QualityLevel节点
-                var qualityLevelElements = streamIndex.Elements().Where(e => e.Name.LocalName == "QualityLevel");
-
-                foreach (var qualityLevel in qualityLevelElements)
+                StreamSpec streamSpec = new();
+                streamSpec.PublishTime = DateTime.Now; // 发布时间默认现在
+                streamSpec.Extension = "m4s";
+                streamSpec.OriginalUrl = ParserConfig.OriginalUrl;
+                streamSpec.PeriodId = indexStr;
+                streamSpec.Playlist = new Playlist();
+                streamSpec.Playlist.IsLive = isLive;
+                streamSpec.Playlist.MediaParts.Add(new MediaPart());
+                streamSpec.GroupId = name ?? indexStr;
+                streamSpec.Bandwidth = bitrate;
+                streamSpec.Codecs = ParseCodecs(fourCC, codecPrivateData);
+                streamSpec.Language = language;
+                streamSpec.Resolution = width == 0 ? null : $"{width}x{height}";
+                streamSpec.Url = IsmUrl;
+                streamSpec.Channels = channels;
+                streamSpec.MediaType = type switch
                 {
-                    urlPattern = (qualityLevel.Attribute("Url")?.Value ?? urlPattern)!
-                        .Replace(MSSTags.Bitrate_BK, MSSTags.Bitrate).Replace(MSSTags.StartTime_BK, MSSTags.StartTime);
-                    var fourCC = qualityLevel.Attribute("FourCC")!.Value.ToUpper();
-                    var samplingRateStr = qualityLevel.Attribute("SamplingRate")?.Value;
-                    var bitsPerSampleStr = qualityLevel.Attribute("BitsPerSample")?.Value;
-                    var nalUnitLengthFieldStr = qualityLevel.Attribute("NALUnitLengthField")?.Value;
-                    var indexStr = qualityLevel.Attribute("Index")?.Value;
-                    var codecPrivateData = qualityLevel.Attribute("CodecPrivateData")?.Value ?? "";
-                    var audioTag = qualityLevel.Attribute("AudioTag")?.Value;
-                    var bitrate = Convert.ToInt32(qualityLevel.Attribute("Bitrate")?.Value ?? "0");
-                    var width = Convert.ToInt32(qualityLevel.Attribute("MaxWidth")?.Value ?? "0");
-                    var height = Convert.ToInt32(qualityLevel.Attribute("MaxHeight")?.Value ?? "0");
-                    var channels = qualityLevel.Attribute("Channels")?.Value;
+                    "text" => MediaType.SUBTITLES,
+                    "audio" => MediaType.AUDIO,
+                    _ => null
+                };
 
-                    StreamSpec streamSpec = new();
-                    streamSpec.PublishTime = DateTime.Now; //发布时间默认现在
-                    streamSpec.Extension = "m4s";
-                    streamSpec.OriginalUrl = ParserConfig.OriginalUrl;
-                    streamSpec.PeriodId = indexStr;
-                    streamSpec.Playlist = new Playlist();
-                    streamSpec.Playlist.IsLive = isLive;
-                    streamSpec.Playlist.MediaParts.Add(new MediaPart());
-                    streamSpec.GroupId = name ?? indexStr;
-                    streamSpec.Bandwidth = bitrate;
-                    streamSpec.Codecs = ParseCodecs(fourCC, codecPrivateData);
-                    streamSpec.Language = language;
-                    streamSpec.Resolution = width == 0 ? null : $"{width}x{height}";
-                    streamSpec.Url = IsmUrl;
-                    streamSpec.Channels = channels;
-                    streamSpec.MediaType = type switch
-                    {
-                        "text" => MediaType.SUBTITLES,
-                        "audio" => MediaType.AUDIO,
-                        _ => null
-                    };
+                streamSpec.Playlist.MediaInit = new MediaSegment();
+                if (!string.IsNullOrEmpty(codecPrivateData))
+                {
+                    streamSpec.Playlist.MediaInit.Index = -1; // 便于排序
+                    streamSpec.Playlist.MediaInit.Url = $"hex://{codecPrivateData}";
+                }
 
-                    streamSpec.Playlist.MediaInit = new MediaSegment();
-                    if (!string.IsNullOrEmpty(codecPrivateData))
+                var currentTime = 0L;
+                var segIndex = 0;
+                var varDic = new Dictionary<string, object?>();
+                varDic[MSSTags.Bitrate] = bitrate;
+
+                foreach (var c in cElements)
+                {
+                    // 每个C元素包含三个属性:@t(start time)\@r(repeat count)\@d(duration)
+                    var _startTimeStr = c.Attribute("t")?.Value;
+                    var _durationStr = c.Attribute("d")?.Value;
+                    var _repeatCountStr = c.Attribute("r")?.Value;
+
+                    if (_startTimeStr != null) currentTime = Convert.ToInt64(_startTimeStr);
+                    var _duration = Convert.ToInt64(_durationStr);
+                    var _repeatCount = Convert.ToInt64(_repeatCountStr);
+                    if (_repeatCount > 0)
                     {
-                        streamSpec.Playlist.MediaInit.Index = -1; //便于排序
-                        streamSpec.Playlist.MediaInit.Url = $"hex://{codecPrivateData}";
+                        // This value is one-based. (A value of 2 means two fragments in the contiguous series).
+                        _repeatCount -= 1;
                     }
 
-                    var currentTime = 0L;
-                    var segIndex = 0;
-                    var varDic = new Dictionary<string, object?>();
-                    varDic[MSSTags.Bitrate] = bitrate;
-
-                    foreach (var c in cElements)
+                    varDic[MSSTags.StartTime] = currentTime;
+                    var oriUrl = ParserUtil.CombineURL(this.BaseUrl, urlPattern!);
+                    var mediaUrl = ParserUtil.ReplaceVars(oriUrl, varDic);
+                    MediaSegment mediaSegment = new();
+                    mediaSegment.Url = mediaUrl;
+                    if (oriUrl.Contains(MSSTags.StartTime))
+                        mediaSegment.NameFromVar = currentTime.ToString();
+                    mediaSegment.Duration = _duration / (double)timescale;
+                    mediaSegment.Index = segIndex++;
+                    streamSpec.Playlist.MediaParts[0].MediaSegments.Add(mediaSegment);
+                    if (_repeatCount < 0)
+                    {
+                        // 负数表示一直重复 直到period结束 注意减掉已经加入的1个片段
+                        _repeatCount = (long)Math.Ceiling(Convert.ToInt64(durationStr) / (double)_duration) - 1;
+                    }
+                    for (long i = 0; i < _repeatCount; i++)
                     {
-                        //每个C元素包含三个属性:@t(start time)\@r(repeat count)\@d(duration)
-                        var _startTimeStr = c.Attribute("t")?.Value;
-                        var _durationStr = c.Attribute("d")?.Value;
-                        var _repeatCountStr = c.Attribute("r")?.Value;
-
-                        if (_startTimeStr != null) currentTime = Convert.ToInt64(_startTimeStr);
-                        var _duration = Convert.ToInt64(_durationStr);
-                        var _repeatCount = Convert.ToInt64(_repeatCountStr);
-                        if (_repeatCount > 0)
-                        {
-                            // This value is one-based. (A value of 2 means two fragments in the contiguous series).
-                            _repeatCount -= 1;
-                        }
-
-                        varDic[MSSTags.StartTime] = currentTime;
-                        var oriUrl = ParserUtil.CombineURL(this.BaseUrl, urlPattern!);
-                        var mediaUrl = ParserUtil.ReplaceVars(oriUrl, varDic);
-                        MediaSegment mediaSegment = new();
-                        mediaSegment.Url = mediaUrl;
-                        if (oriUrl.Contains(MSSTags.StartTime))
-                            mediaSegment.NameFromVar = currentTime.ToString();
-                        mediaSegment.Duration = _duration / (double)timescale;
-                        mediaSegment.Index = segIndex++;
-                        streamSpec.Playlist.MediaParts[0].MediaSegments.Add(mediaSegment);
-                        if (_repeatCount < 0)
-                        {
-                            //负数表示一直重复 直到period结束 注意减掉已经加入的1个片段
-                            _repeatCount = (long)Math.Ceiling(Convert.ToInt64(durationStr) / (double)_duration) - 1;
-                        }
-                        for (long i = 0; i < _repeatCount; i++)
-                        {
-                            currentTime += _duration;
-                            MediaSegment _mediaSegment = new();
-                            varDic[MSSTags.StartTime] = currentTime;
-                            var _oriUrl = ParserUtil.CombineURL(this.BaseUrl, urlPattern!);
-                            var _mediaUrl = ParserUtil.ReplaceVars(_oriUrl, varDic);
-                            _mediaSegment.Url = _mediaUrl;
-                            _mediaSegment.Index = segIndex++;
-                            _mediaSegment.Duration = _duration / (double)timescale;
-                            if (_oriUrl.Contains(MSSTags.StartTime))
-                                _mediaSegment.NameFromVar = currentTime.ToString();
-                            streamSpec.Playlist.MediaParts[0].MediaSegments.Add(_mediaSegment);
-                        }
                         currentTime += _duration;
+                        MediaSegment _mediaSegment = new();
+                        varDic[MSSTags.StartTime] = currentTime;
+                        var _oriUrl = ParserUtil.CombineURL(this.BaseUrl, urlPattern!);
+                        var _mediaUrl = ParserUtil.ReplaceVars(_oriUrl, varDic);
+                        _mediaSegment.Url = _mediaUrl;
+                        _mediaSegment.Index = segIndex++;
+                        _mediaSegment.Duration = _duration / (double)timescale;
+                        if (_oriUrl.Contains(MSSTags.StartTime))
+                            _mediaSegment.NameFromVar = currentTime.ToString();
+                        streamSpec.Playlist.MediaParts[0].MediaSegments.Add(_mediaSegment);
                     }
+                    currentTime += _duration;
+                }
 
-                    //生成MOOV数据
-                    if (MSSMoovProcessor.CanHandle(fourCC!))
+                // 生成MOOV数据
+                if (MSSMoovProcessor.CanHandle(fourCC!))
+                {
+                    streamSpec.MSSData = new MSSData()
                     {
-                        streamSpec.MSSData = new MSSData()
+                        FourCC = fourCC!,
+                        CodecPrivateData = codecPrivateData,
+                        Type = type!,
+                        Timesacle = Convert.ToInt32(timeScaleStr),
+                        Duration = Convert.ToInt64(durationStr),
+                        SamplingRate = Convert.ToInt32(samplingRateStr ?? "48000"),
+                        Channels = Convert.ToInt32(channels ?? "2"),
+                        BitsPerSample = Convert.ToInt32(bitsPerSampleStr ?? "16"),
+                        NalUnitLengthField = Convert.ToInt32(nalUnitLengthFieldStr ?? "4"),
+                        IsProtection = isProtection,
+                        ProtectionData = protectionData,
+                        ProtectionSystemID = protectionSystemId,
+                    };
+                    var processor = new MSSMoovProcessor(streamSpec);
+                    var header = processor.GenHeader(); // trackId可能不正确
+                    streamSpec.Playlist!.MediaInit!.Url = $"base64://{Convert.ToBase64String(header)}";
+                    // 为音视频写入加密信息
+                    if (isProtection && type != "text") 
+                    {
+                        if (streamSpec.Playlist.MediaInit != null)
                         {
-                            FourCC = fourCC!,
-                            CodecPrivateData = codecPrivateData,
-                            Type = type!,
-                            Timesacle = Convert.ToInt32(timeScaleStr),
-                            Duration = Convert.ToInt64(durationStr),
-                            SamplingRate = Convert.ToInt32(samplingRateStr ?? "48000"),
-                            Channels = Convert.ToInt32(channels ?? "2"),
-                            BitsPerSample = Convert.ToInt32(bitsPerSampleStr ?? "16"),
-                            NalUnitLengthField = Convert.ToInt32(nalUnitLengthFieldStr ?? "4"),
-                            IsProtection = isProtection,
-                            ProtectionData = protectionData,
-                            ProtectionSystemID = protectionSystemId,
-                        };
-                        var processor = new MSSMoovProcessor(streamSpec);
-                        var header = processor.GenHeader(); //trackId可能不正确
-                        streamSpec.Playlist!.MediaInit!.Url = $"base64://{Convert.ToBase64String(header)}";
-                        //为音视频写入加密信息
-                        if (isProtection && type != "text") 
-                        {
-                            if (streamSpec.Playlist.MediaInit != null)
-                            {
-                                streamSpec.Playlist.MediaInit.EncryptInfo.Method = DEFAULT_METHOD;
-                            }
-                            foreach (var item in streamSpec.Playlist.MediaParts[0].MediaSegments)
-                            {
-                                item.EncryptInfo.Method = DEFAULT_METHOD;
-                            }
+                            streamSpec.Playlist.MediaInit.EncryptInfo.Method = DEFAULT_METHOD;
                         }
-                        streamList.Add(streamSpec);
-                    }
-                    else
-                    {
-                        Logger.WarnMarkUp($"[green]{fourCC}[/] not supported! Skiped.");
-                        continue;
-                    }
-                }
-            }
-
-            //为视频设置默认轨道
-            var aL = streamList.Where(s => s.MediaType == MediaType.AUDIO);
-            var sL = streamList.Where(s => s.MediaType == MediaType.SUBTITLES);
-            foreach (var item in streamList)
-            {
-                if (!string.IsNullOrEmpty(item.Resolution))
-                {
-                    if (aL.Any())
-                    {
-                        item.AudioId = aL.First().GroupId;
-                    }
-                    if (sL.Any())
-                    {
-                        item.SubtitleId = sL.First().GroupId;
-                    }
-                }
-            }
-
-            return streamList;
-        }
-
-        /// <summary>
-        /// 解析编码
-        /// </summary>
-        /// <param name="fourCC"></param>
-        /// <returns></returns>
-        private static string? ParseCodecs(string fourCC, string? privateData)
-        {
-            if (fourCC == "TTML") return "stpp";
-            if (string.IsNullOrEmpty(privateData)) return null;
-
-            return fourCC switch
-            {
-                //AVC视频
-                "H264" or "X264" or "DAVC" or "AVC1" => ParseAVCCodecs(privateData),
-                //AAC音频
-                "AAC" or "AACL" or "AACH" or "AACP" => ParseAACCodecs(fourCC, privateData),
-                //默认返回fourCC本身
-                _ => fourCC.ToLower()
-            };
-        }
-
-        private static string ParseAVCCodecs(string privateData)
-        {
-            var result = VCodecsRegex().Match(privateData).Groups[1].Value;
-            return string.IsNullOrEmpty(result) ? "avc1.4D401E" : $"avc1.{result}";
-        }
-
-        private static string ParseAACCodecs(string fourCC, string privateData)
-        {
-            var mpProfile = 2;
-            if (fourCC == "AACH")
-            {
-                mpProfile = 5; // High Efficiency AAC Profile
-            }
-            else if (!string.IsNullOrEmpty(privateData)) 
-            {
-                mpProfile = (Convert.ToByte(privateData[..2], 16) & 0xF8) >> 3;
-            }
-
-            return $"mp4a.40.{mpProfile}";
-        }
-
-        public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
-        {
-            //这里才调用URL预处理器，节省开销
-            await ProcessUrlAsync(streamSpecs);
-        }
-
-        private async Task ProcessUrlAsync(List<StreamSpec> streamSpecs)
-        {
-            for (int i = 0; i < streamSpecs.Count; i++)
-            {
-                var playlist = streamSpecs[i].Playlist;
-                if (playlist != null)
-                {
-                    if (playlist.MediaInit != null)
-                    {
-                        playlist.MediaInit!.Url = PreProcessUrl(playlist.MediaInit!.Url);
-                    }
-                    for (int ii = 0; ii < playlist!.MediaParts.Count; ii++)
-                    {
-                        var part = playlist.MediaParts[ii];
-                        for (int iii = 0; iii < part.MediaSegments.Count; iii++)
+                        foreach (var item in streamSpec.Playlist.MediaParts[0].MediaSegments)
                         {
-                            part.MediaSegments[iii].Url = PreProcessUrl(part.MediaSegments[iii].Url);
+                            item.EncryptInfo.Method = DEFAULT_METHOD;
                         }
                     }
+                    streamList.Add(streamSpec);
                 }
-            }
-        }
-
-        public string PreProcessUrl(string url)
-        {
-            foreach (var p in ParserConfig.UrlProcessors)
-            {
-                if (p.CanProcess(ExtractorType, url, ParserConfig))
+                else
                 {
-                    url = p.Process(url, ParserConfig);
+                    Logger.WarnMarkUp($"[green]{fourCC}[/] not supported! Skiped.");
                 }
             }
-
-            return url;
         }
 
-        public void PreProcessContent()
+        // 为视频设置默认轨道
+        var aL = streamList.Where(s => s.MediaType == MediaType.AUDIO).ToList();
+        var sL = streamList.Where(s => s.MediaType == MediaType.SUBTITLES).ToList();
+        foreach (var item in streamList.Where(item => !string.IsNullOrEmpty(item.Resolution)))
         {
-            foreach (var p in ParserConfig.ContentProcessors)
+            if (aL.Count != 0)
             {
-                if (p.CanProcess(ExtractorType, IsmContent, ParserConfig))
+                item.AudioId = aL.First().GroupId;
+            }
+            if (sL.Count != 0)
+            {
+                item.SubtitleId = sL.First().GroupId;
+            }
+        }
+
+        return Task.FromResult(streamList);
+    }
+
+    /// <summary>
+    /// 解析编码
+    /// </summary>
+    /// <param name="fourCC"></param>
+    /// <returns></returns>
+    private static string? ParseCodecs(string fourCC, string? privateData)
+    {
+        if (fourCC == "TTML") return "stpp";
+        if (string.IsNullOrEmpty(privateData)) return null;
+
+        return fourCC switch
+        {
+            // AVC视频
+            "H264" or "X264" or "DAVC" or "AVC1" => ParseAVCCodecs(privateData),
+            // AAC音频
+            "AAC" or "AACL" or "AACH" or "AACP" => ParseAACCodecs(fourCC, privateData),
+            // 默认返回fourCC本身
+            _ => fourCC.ToLower()
+        };
+    }
+
+    private static string ParseAVCCodecs(string privateData)
+    {
+        var result = VCodecsRegex().Match(privateData).Groups[1].Value;
+        return string.IsNullOrEmpty(result) ? "avc1.4D401E" : $"avc1.{result}";
+    }
+
+    private static string ParseAACCodecs(string fourCC, string privateData)
+    {
+        var mpProfile = 2;
+        if (fourCC == "AACH")
+        {
+            mpProfile = 5; // High Efficiency AAC Profile
+        }
+        else if (!string.IsNullOrEmpty(privateData)) 
+        {
+            mpProfile = (Convert.ToByte(privateData[..2], 16) & 0xF8) >> 3;
+        }
+
+        return $"mp4a.40.{mpProfile}";
+    }
+
+    public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
+    {
+        // 这里才调用URL预处理器，节省开销
+        await ProcessUrlAsync(streamSpecs);
+    }
+
+    private Task ProcessUrlAsync(List<StreamSpec> streamSpecs)
+    {
+        foreach (var streamSpec in streamSpecs)
+        {
+            var playlist = streamSpec.Playlist;
+            if (playlist == null) continue;
+            
+            if (playlist.MediaInit != null)
+            {
+                playlist.MediaInit!.Url = PreProcessUrl(playlist.MediaInit!.Url);
+            }
+            for (var ii = 0; ii < playlist!.MediaParts.Count; ii++)
+            {
+                var part = playlist.MediaParts[ii];
+                foreach (var segment in part.MediaSegments)
                 {
-                    IsmContent = p.Process(IsmContent, ParserConfig);
+                    segment.Url = PreProcessUrl(segment.Url);
                 }
             }
         }
 
-        public async Task RefreshPlayListAsync(List<StreamSpec> streamSpecs)
+        return Task.CompletedTask;
+    }
+
+    public string PreProcessUrl(string url)
+    {
+        foreach (var p in ParserConfig.UrlProcessors)
         {
-            if (streamSpecs.Count == 0) return;
-
-            var (rawText, url) = ("", ParserConfig.Url);
-            try
+            if (p.CanProcess(ExtractorType, url, ParserConfig))
             {
-                (rawText, url) = await HTTPUtil.GetWebSourceAndNewUrlAsync(ParserConfig.Url, ParserConfig.Headers);
+                url = p.Process(url, ParserConfig);
             }
-            catch (HttpRequestException) when (ParserConfig.Url != ParserConfig.OriginalUrl)
+        }
+
+        return url;
+    }
+
+    public void PreProcessContent()
+    {
+        foreach (var p in ParserConfig.ContentProcessors)
+        {
+            if (p.CanProcess(ExtractorType, IsmContent, ParserConfig))
             {
-                //当URL无法访问时，再请求原始URL
-                (rawText, url) = await HTTPUtil.GetWebSourceAndNewUrlAsync(ParserConfig.OriginalUrl, ParserConfig.Headers);
+                IsmContent = p.Process(IsmContent, ParserConfig);
             }
-
-            ParserConfig.Url = url;
-            SetInitUrl();
-
-            var newStreams = await ExtractStreamsAsync(rawText);
-            foreach (var streamSpec in streamSpecs)
-            {
-                //有的网站每次请求MPD返回的码率不一致，导致ToShortString()无法匹配 无法更新playlist
-                //故增加通过init url来匹配 (如果有的话)
-                var match = newStreams.Where(n => n.ToShortString() == streamSpec.ToShortString());
-                if (!match.Any())
-                    match = newStreams.Where(n => n.Playlist?.MediaInit?.Url == streamSpec.Playlist?.MediaInit?.Url);
-
-                if (match.Any())
-                    streamSpec.Playlist!.MediaParts = match.First().Playlist!.MediaParts; //不更新init
-            }
-            //这里才调用URL预处理器，节省开销
-            await ProcessUrlAsync(streamSpecs);
         }
     }
+
+    public async Task RefreshPlayListAsync(List<StreamSpec> streamSpecs)
+    {
+        if (streamSpecs.Count == 0) return;
+
+        var (rawText, url) = ("", ParserConfig.Url);
+        try
+        {
+            (rawText, url) = await HTTPUtil.GetWebSourceAndNewUrlAsync(ParserConfig.Url, ParserConfig.Headers);
+        }
+        catch (HttpRequestException) when (ParserConfig.Url != ParserConfig.OriginalUrl)
+        {
+            // 当URL无法访问时，再请求原始URL
+            (rawText, url) = await HTTPUtil.GetWebSourceAndNewUrlAsync(ParserConfig.OriginalUrl, ParserConfig.Headers);
+        }
+
+        ParserConfig.Url = url;
+        SetInitUrl();
+
+        var newStreams = await ExtractStreamsAsync(rawText);
+        foreach (var streamSpec in streamSpecs)
+        {
+            // 有的网站每次请求MPD返回的码率不一致，导致ToShortString()无法匹配 无法更新playlist
+            // 故增加通过init url来匹配 (如果有的话)
+            var match = newStreams.Where(n => n.ToShortString() == streamSpec.ToShortString());
+            if (!match.Any())
+                match = newStreams.Where(n => n.Playlist?.MediaInit?.Url == streamSpec.Playlist?.MediaInit?.Url);
+
+            if (match.Any())
+                streamSpec.Playlist!.MediaParts = match.First().Playlist!.MediaParts; // 不更新init
+        }
+        // 这里才调用URL预处理器，节省开销
+        await ProcessUrlAsync(streamSpecs);
+    }
 }

src/N_m3u8DL-RE.Parser/Mp4/BinaryReader2.cs

@@ -1,70 +1,62 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace Mp4SubtitleParser;
 
-namespace Mp4SubtitleParser
+// make BinaryReader in Big Endian
+class BinaryReader2 : BinaryReader
 {
-    //make BinaryReader in Big Endian
-    class BinaryReader2 : BinaryReader
+    public BinaryReader2(System.IO.Stream stream) : base(stream) { }
+
+    public bool HasMoreData()
     {
-        public BinaryReader2(System.IO.Stream stream) : base(stream) { }
+        return BaseStream.Position < BaseStream.Length;
+    }
 
-        public bool HasMoreData()
-        {
-            return BaseStream.Position < BaseStream.Length;
-        }
+    public long GetLength()
+    {
+        return BaseStream.Length;
+    }
 
-        public long GetLength()
-        {
-            return BaseStream.Length;
-        }
+    public long GetPosition()
+    {
+        return BaseStream.Position;
+    }
 
-        public long GetPosition()
-        {
-            return BaseStream.Position;
-        }
+    public override int ReadInt32()
+    {
+        var data = base.ReadBytes(4);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(data);
+        return BitConverter.ToInt32(data, 0);
+    }
 
-        public override int ReadInt32()
-        {
-            var data = base.ReadBytes(4);
-            if (BitConverter.IsLittleEndian)
-                Array.Reverse(data);
-            return BitConverter.ToInt32(data, 0);
-        }
+    public override short ReadInt16()
+    {
+        var data = base.ReadBytes(2);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(data);
+        return BitConverter.ToInt16(data, 0);
+    }
 
-        public override short ReadInt16()
-        {
-            var data = base.ReadBytes(2);
-            if (BitConverter.IsLittleEndian)
-                Array.Reverse(data);
-            return BitConverter.ToInt16(data, 0);
-        }
+    public override long ReadInt64()
+    {
+        var data = base.ReadBytes(8);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(data);
+        return BitConverter.ToInt64(data, 0);
+    }
 
-        public override long ReadInt64()
-        {
-            var data = base.ReadBytes(8);
-            if (BitConverter.IsLittleEndian)
-                Array.Reverse(data);
-            return BitConverter.ToInt64(data, 0);
-        }
+    public override uint ReadUInt32()
+    {
+        var data = base.ReadBytes(4);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(data);
+        return BitConverter.ToUInt32(data, 0);
+    }
 
-        public override uint ReadUInt32()
-        {
-            var data = base.ReadBytes(4);
-            if (BitConverter.IsLittleEndian)
-                Array.Reverse(data);
-            return BitConverter.ToUInt32(data, 0);
-        }
-
-        public override ulong ReadUInt64()
-        {
-            var data = base.ReadBytes(8);
-            if (BitConverter.IsLittleEndian)
-                Array.Reverse(data);
-            return BitConverter.ToUInt64(data, 0);
-        }
+    public override ulong ReadUInt64()
+    {
+        var data = base.ReadBytes(8);
+        if (BitConverter.IsLittleEndian)
+            Array.Reverse(data);
+        return BitConverter.ToUInt64(data, 0);
     }
 }

src/N_m3u8DL-RE.Parser/Mp4/BinaryWriter2.cs

@@ -1,89 +1,83 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.Text;
 
-namespace Mp4SubtitleParser
+namespace Mp4SubtitleParser;
+
+// make BinaryWriter in Big Endian
+class BinaryWriter2 : BinaryWriter
 {
-    //make BinaryWriter in Big Endian
-    class BinaryWriter2 : BinaryWriter
+    private static bool IsLittleEndian = BitConverter.IsLittleEndian;
+    public BinaryWriter2(System.IO.Stream stream) : base(stream) { }
+
+
+    public void WriteUInt(decimal n, int offset = 0)
     {
-        private static bool IsLittleEndian = BitConverter.IsLittleEndian;
-        public BinaryWriter2(System.IO.Stream stream) : base(stream) { }
+        var arr = BitConverter.GetBytes((uint)n);
+        if (IsLittleEndian)
+            Array.Reverse(arr);
+        if (offset != 0)
+            arr = arr[offset..];
+        BaseStream.Write(arr);
+    }
 
+    public override void Write(string text)
+    {
+        BaseStream.Write(Encoding.ASCII.GetBytes(text));
+    }
 
-        public void WriteUInt(decimal n, int offset = 0)
+    public void WriteInt(decimal n, int offset = 0)
+    {
+        var arr = BitConverter.GetBytes((int)n);
+        if (IsLittleEndian)
+            Array.Reverse(arr);
+        if (offset != 0)
+            arr = arr[offset..];
+        BaseStream.Write(arr);
+    }
+
+    public void WriteULong(decimal n, int offset = 0)
+    {
+        var arr = BitConverter.GetBytes((ulong)n);
+        if (IsLittleEndian)
+            Array.Reverse(arr);
+        if (offset != 0)
+            arr = arr[offset..];
+        BaseStream.Write(arr);
+    }
+
+    public void WriteUShort(decimal n, int padding = 0)
+    {
+        var arr = BitConverter.GetBytes((ushort)n);
+        if (IsLittleEndian)
+            Array.Reverse(arr);
+        while (padding > 0)
         {
-            var arr = BitConverter.GetBytes((uint)n);
-            if (IsLittleEndian)
-                Array.Reverse(arr);
-            if (offset != 0)
-                arr = arr[offset..];
-            BaseStream.Write(arr);
+            arr = arr.Concat(new byte[] { 0x00 }).ToArray();
+            padding--;
         }
+        BaseStream.Write(arr);
+    }
 
-        public override void Write(string text)
+    public void WriteShort(decimal n, int padding = 0)
+    {
+        var arr = BitConverter.GetBytes((short)n);
+        if (IsLittleEndian)
+            Array.Reverse(arr);
+        while (padding > 0)
         {
-            BaseStream.Write(Encoding.ASCII.GetBytes(text));
+            arr = arr.Concat(new byte[] { 0x00 }).ToArray();
+            padding--;
         }
+        BaseStream.Write(arr);
+    }
 
-        public void WriteInt(decimal n, int offset = 0)
+    public void WriteByte(byte n, int padding = 0)
+    {
+        var arr = new byte[] { n };
+        while (padding > 0)
         {
-            var arr = BitConverter.GetBytes((int)n);
-            if (IsLittleEndian)
-                Array.Reverse(arr);
-            if (offset != 0)
-                arr = arr[offset..];
-            BaseStream.Write(arr);
-        }
-
-        public void WriteULong(decimal n, int offset = 0)
-        {
-            var arr = BitConverter.GetBytes((ulong)n);
-            if (IsLittleEndian)
-                Array.Reverse(arr);
-            if (offset != 0)
-                arr = arr[offset..];
-            BaseStream.Write(arr);
-        }
-
-        public void WriteUShort(decimal n, int padding = 0)
-        {
-            var arr = BitConverter.GetBytes((ushort)n);
-            if (IsLittleEndian)
-                Array.Reverse(arr);
-            while (padding > 0)
-            {
-                arr = arr.Concat(new byte[] { 0x00 }).ToArray();
-                padding--;
-            }
-            BaseStream.Write(arr);
-        }
-
-        public void WriteShort(decimal n, int padding = 0)
-        {
-            var arr = BitConverter.GetBytes((short)n);
-            if (IsLittleEndian)
-                Array.Reverse(arr);
-            while (padding > 0)
-            {
-                arr = arr.Concat(new byte[] { 0x00 }).ToArray();
-                padding--;
-            }
-            BaseStream.Write(arr);
-        }
-
-        public void WriteByte(byte n, int padding = 0)
-        {
-            var arr = new byte[] { n };
-            while (padding > 0)
-            {
-                arr = arr.Concat(new byte[] { 0x00 }).ToArray();
-                padding--;
-            }
-            BaseStream.Write(arr);
+            arr = arr.Concat(new byte[] { 0x00 }).ToArray();
+            padding--;
         }
+        BaseStream.Write(arr);
     }
 }

src/N_m3u8DL-RE.Parser/Mp4/MP4InitUtil.cs

@@ -1,5 +1,4 @@
 using N_m3u8DL_RE.Common.Util;
-using System.Security.Cryptography;
 
 namespace Mp4SubtitleParser
 {
@@ -11,16 +10,16 @@ namespace Mp4SubtitleParser
         public bool isMultiDRM;
     }
 
-    public class MP4InitUtil
+    public static class MP4InitUtil
     {
-        private static readonly byte[] SYSTEM_ID_WIDEVINE = { 0xED, 0xEF, 0x8B, 0xA9, 0x79, 0xD6, 0x4A, 0xCE, 0xA3, 0xC8, 0x27, 0xDC, 0xD5, 0x1D, 0x21, 0xED };
-        private static readonly byte[] SYSTEM_ID_PLAYREADY = { 0x9A, 0x04, 0xF0, 0x79, 0x98, 0x40, 0x42, 0x86, 0xAB, 0x92, 0xE6, 0x5B, 0xE0, 0x88, 0x5F, 0x95 };
+        private static readonly byte[] SYSTEM_ID_WIDEVINE = [0xED, 0xEF, 0x8B, 0xA9, 0x79, 0xD6, 0x4A, 0xCE, 0xA3, 0xC8, 0x27, 0xDC, 0xD5, 0x1D, 0x21, 0xED];
+        private static readonly byte[] SYSTEM_ID_PLAYREADY = [0x9A, 0x04, 0xF0, 0x79, 0x98, 0x40, 0x42, 0x86, 0xAB, 0x92, 0xE6, 0x5B, 0xE0, 0x88, 0x5F, 0x95];
 
         public static ParsedMP4Info ReadInit(byte[] data)
         {
             var info = new ParsedMP4Info();
 
-            //parse init
+            // parse init
             new MP4Parser()
                 .Box("moov", MP4Parser.Children)
                 .Box("trak", MP4Parser.Children)
@@ -28,22 +27,20 @@ namespace Mp4SubtitleParser
                 .Box("minf", MP4Parser.Children)
                 .Box("stbl", MP4Parser.Children)
                 .FullBox("stsd", MP4Parser.SampleDescription)
-                .FullBox("pssh", (box) =>
+                .FullBox("pssh", box =>
                 {
-                    if (!(box.Version == 0 || box.Version == 1))
+                    if (box.Version is not (0 or 1))
                         throw new Exception("PSSH version can only be 0 or 1");
                     var systemId = box.Reader.ReadBytes(16);
-                    if (SYSTEM_ID_WIDEVINE.SequenceEqual(systemId))
-                    {
-                        var dataSize = box.Reader.ReadUInt32();
-                        var psshData = box.Reader.ReadBytes((int)dataSize);
-                        info.PSSH = Convert.ToBase64String(psshData);
-                        if (info.KID == "00000000000000000000000000000000")
-                        {
-                            info.KID = HexUtil.BytesToHex(psshData[2..18]).ToLower();
-                            info.isMultiDRM = true;
-                        }
-                    }
+                    if (!SYSTEM_ID_WIDEVINE.SequenceEqual(systemId)) return;
+                    
+                    var dataSize = box.Reader.ReadUInt32();
+                    var psshData = box.Reader.ReadBytes((int)dataSize);
+                    info.PSSH = Convert.ToBase64String(psshData);
+                    if (info.KID != "00000000000000000000000000000000") return;
+                    
+                    info.KID = HexUtil.BytesToHex(psshData[2..18]).ToLower();
+                    info.isMultiDRM = true;
                 })
                 .FullBox("encv", MP4Parser.AllData(data => ReadBox(data, info)))
                 .FullBox("enca", MP4Parser.AllData(data => ReadBox(data, info)))
@@ -56,12 +53,12 @@ namespace Mp4SubtitleParser
 
         private static void ReadBox(byte[] data, ParsedMP4Info info)
         {
-            //find schm 
-            var schmBytes = new byte[4] { 0x73, 0x63, 0x68, 0x6d };
+            // find schm 
+            byte[] schmBytes = [0x73, 0x63, 0x68, 0x6d];
             var schmIndex = 0;
-            for (int i = 0; i < data.Length - 4; i++) 
+            for (var i = 0; i < data.Length - 4; i++) 
             {
-                if (new byte[4] { data[i], data[i + 1], data[i + 2], data[i + 3] }.SequenceEqual(schmBytes))
+                if (new[] { data[i], data[i + 1], data[i + 2], data[i + 3] }.SequenceEqual(schmBytes))
                 {
                     schmIndex = i;
                     break;
@@ -72,14 +69,14 @@ namespace Mp4SubtitleParser
                 info.Scheme = System.Text.Encoding.UTF8.GetString(data[schmIndex..][8..12]);
             }
 
-            //if (info.Scheme != "cenc") return;
+            // if (info.Scheme != "cenc") return;
 
-            //find KID
-            var tencBytes = new byte[4] { 0x74, 0x65, 0x6E, 0x63 };
+            // find KID
+            byte[] tencBytes = [0x74, 0x65, 0x6E, 0x63];
             var tencIndex = -1;
             for (int i = 0; i < data.Length - 4; i++)
             {
-                if (new byte[4] { data[i], data[i + 1], data[i + 2], data[i + 3] }.SequenceEqual(tencBytes))
+                if (new[] { data[i], data[i + 1], data[i + 2], data[i + 3] }.SequenceEqual(tencBytes))
                 {
                     tencIndex = i;
                     break;

src/N_m3u8DL-RE.Parser/Mp4/MP4Parser.cs

@@ -9,12 +9,12 @@ namespace Mp4SubtitleParser
 {
     class ParsedBox
     {
-        public MP4Parser Parser { get; set; }
+        public required MP4Parser Parser { get; set; }
         public bool PartialOkay { get; set; }
         public long Start { get; set; }
         public uint Version { get; set; } = 1000;
         public uint Flags { get; set; } = 1000;
-        public BinaryReader2 Reader { get; set; }
+        public required BinaryReader2 Reader { get; set; }
         public bool Has64BitSize { get; set; }
     }
 
@@ -28,7 +28,7 @@ namespace Mp4SubtitleParser
     class TRUN
     {
         public uint SampleCount { get; set; }
-        public List<Sample> SampleData { get; set; } = new List<Sample>();
+        public List<Sample> SampleData { get; set; } = [];
     }
 
     class Sample
@@ -55,7 +55,7 @@ namespace Mp4SubtitleParser
 
         public static BoxHandler AllData(DataHandler handler)
         {
-            return (box) =>
+            return box =>
             {
                 var all = box.Reader.GetLength() - box.Reader.GetPosition();
                 handler(box.Reader.ReadBytes((int)all));
@@ -111,7 +111,7 @@ namespace Mp4SubtitleParser
             var name = TypeToString(type);
             var has64BitSize = false;
 
-            //Console.WriteLine($"Parsing MP4 box: {name}");
+            // Console.WriteLine($"Parsing MP4 box: {name}");
 
             switch (size)
             {
@@ -129,8 +129,7 @@ namespace Mp4SubtitleParser
                     break;
             }
 
-            BoxHandler boxDefinition = null;
-            this.BoxDefinitions.TryGetValue(type, out boxDefinition);
+            this.BoxDefinitions.TryGetValue(type, out BoxHandler? boxDefinition);
 
             if (boxDefinition != null)
             {
@@ -162,7 +161,7 @@ namespace Mp4SubtitleParser
                 }
 
                 int payloadSize = (int)(end - reader.GetPosition());
-                var payload = (payloadSize > 0) ? reader.ReadBytes(payloadSize) : new byte[0];
+                var payload = (payloadSize > 0) ? reader.ReadBytes(payloadSize) : [];
                 var box = new ParsedBox()
                 {
                     Parser = this,

src/N_m3u8DL-RE.Parser/Mp4/MP4TtmlUtil.cs

@@ -3,75 +3,229 @@ using System.Text;
 using System.Text.RegularExpressions;
 using System.Xml;
 
-namespace Mp4SubtitleParser
+namespace Mp4SubtitleParser;
+
+class SubEntity
 {
-    class SubEntity
+    public required string Begin { get; set; }
+    public required string End { get; set; }
+    public required string Region { get; set; }
+    public List<XmlElement> Contents { get; set; } = [];
+    public List<string> ContentStrings { get; set; } = [];
+
+    public override bool Equals(object? obj)
     {
-        public string Begin { get; set; }
-        public string End { get; set; }
-        public string Region { get; set; }
-        public List<XmlElement> Contents { get; set; } = new List<XmlElement>();
-        public List<string> ContentStrings { get; set; } = new List<string>();
-
-        public override bool Equals(object? obj)
-        {
-            return obj is SubEntity entity &&
-                   Begin == entity.Begin &&
-                   End == entity.End &&
-                   Region == entity.Region &&
-                   ContentStrings.SequenceEqual(entity.ContentStrings);
-        }
-
-        public override int GetHashCode()
-        {
-            return HashCode.Combine(Begin, End, Region, ContentStrings);
-        }
+        return obj is SubEntity entity &&
+               Begin == entity.Begin &&
+               End == entity.End &&
+               Region == entity.Region &&
+               ContentStrings.SequenceEqual(entity.ContentStrings);
     }
 
-    public partial class MP4TtmlUtil
+    public override int GetHashCode()
     {
-        [GeneratedRegex(" \\w+:\\w+=\\\"[^\\\"]*\\\"")]
-        private static partial Regex AttrRegex();
-        [GeneratedRegex("<p.*?>(.+?)<\\/p>")]
-        private static partial Regex LabelFixRegex();
-        [GeneratedRegex("\\<tt[\\s\\S]*?\\<\\/tt\\>")]
-        private static partial Regex MultiElementsFixRegex();
-        [GeneratedRegex("\\<smpte:image.*xml:id=\\\"(.*?)\\\".*\\>([\\s\\S]*?)<\\/smpte:image>")]
-        private static partial Regex ImageRegex();
+        return HashCode.Combine(Begin, End, Region, ContentStrings);
+    }
+}
 
-        public static bool CheckInit(byte[] data)
+public static partial class MP4TtmlUtil
+{
+    [GeneratedRegex(" \\w+:\\w+=\\\"[^\\\"]*\\\"")]
+    private static partial Regex AttrRegex();
+    [GeneratedRegex("<p.*?>(.+?)<\\/p>")]
+    private static partial Regex LabelFixRegex();
+    [GeneratedRegex(@"\<tt[\s\S]*?\<\/tt\>")]
+    private static partial Regex MultiElementsFixRegex();
+    [GeneratedRegex("\\<smpte:image.*xml:id=\\\"(.*?)\\\".*\\>([\\s\\S]*?)<\\/smpte:image>")]
+    private static partial Regex ImageRegex();
+
+    public static bool CheckInit(byte[] data)
+    {
+        bool sawSTPP = false;
+
+        // parse init
+        new MP4Parser()
+            .Box("moov", MP4Parser.Children)
+            .Box("trak", MP4Parser.Children)
+            .Box("mdia", MP4Parser.Children)
+            .Box("minf", MP4Parser.Children)
+            .Box("stbl", MP4Parser.Children)
+            .FullBox("stsd", MP4Parser.SampleDescription)
+            .Box("stpp", box => {
+                sawSTPP = true;
+            })
+            .Parse(data);
+
+        return sawSTPP;
+    }
+
+    private static string ShiftTime(string xmlSrc, long segTimeMs, int index)
+    {
+        string Add(string xmlTime)
         {
-            bool sawSTPP = false;
-
-            //parse init
-            new MP4Parser()
-                .Box("moov", MP4Parser.Children)
-                .Box("trak", MP4Parser.Children)
-                .Box("mdia", MP4Parser.Children)
-                .Box("minf", MP4Parser.Children)
-                .Box("stbl", MP4Parser.Children)
-                .FullBox("stsd", MP4Parser.SampleDescription)
-                .Box("stpp", (box) => {
-                    sawSTPP = true;
-                })
-                .Parse(data);
-
-            return sawSTPP;
+            var dt = DateTime.ParseExact(xmlTime, "HH:mm:ss.fff", System.Globalization.CultureInfo.InvariantCulture);
+            var ts = TimeSpan.FromMilliseconds(dt.TimeOfDay.TotalMilliseconds + segTimeMs * index);
+            return $"{ts.Hours:00}:{ts.Minutes:00}:{ts.Seconds:00}.{ts.Milliseconds:000}";
         }
 
-        private static string ShiftTime(string xmlSrc, long segTimeMs, int index)
+        if (!xmlSrc.Contains("<tt") || !xmlSrc.Contains("<head>")) return xmlSrc;
+        var xmlDoc = new XmlDocument();
+        XmlNamespaceManager? nsMgr = null;
+        xmlDoc.LoadXml(xmlSrc);
+        var ttNode = xmlDoc.LastChild;
+        if (nsMgr == null)
         {
-            string Add(string xmlTime)
-            {
-                var dt = DateTime.ParseExact(xmlTime, "HH:mm:ss.fff", System.Globalization.CultureInfo.InvariantCulture);
-                var ts = TimeSpan.FromMilliseconds(dt.TimeOfDay.TotalMilliseconds + segTimeMs * index);
-                return string.Format("{0:00}:{1:00}:{2:00}.{3:000}", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds);
-            }
+            var ns = ((XmlElement)ttNode!).GetAttribute("xmlns");
+            nsMgr = new XmlNamespaceManager(xmlDoc.NameTable);
+            nsMgr.AddNamespace("ns", ns);
+        }
 
-            if (!xmlSrc.Contains("<tt") || !xmlSrc.Contains("<head>")) return xmlSrc;
-            var xmlDoc = new XmlDocument();
-            XmlNamespaceManager? nsMgr = null;
-            xmlDoc.LoadXml(xmlSrc);
+        var bodyNode = ttNode!.SelectSingleNode("ns:body", nsMgr);
+        if (bodyNode == null)
+            return xmlSrc;
+
+        var _div = bodyNode.SelectSingleNode("ns:div", nsMgr);
+        // Parse <p> label
+        foreach (XmlElement _p in _div!.SelectNodes("ns:p", nsMgr)!)
+        {
+            var _begin = _p.GetAttribute("begin");
+            var _end = _p.GetAttribute("end");
+            // Handle namespace
+            foreach (XmlAttribute attr in _p.Attributes)
+            {
+                if (attr.LocalName == "begin") _begin = attr.Value;
+                else if (attr.LocalName == "end") _end = attr.Value;
+            }
+            _p.SetAttribute("begin", Add(_begin));
+            _p.SetAttribute("end", Add(_end));
+            // Console.WriteLine($"{_begin} {_p.GetAttribute("begin")}");
+            // Console.WriteLine($"{_end} {_p.GetAttribute("begin")}");
+        }
+
+        return xmlDoc.OuterXml;
+    }
+
+    private static string GetTextFromElement(XmlElement node)
+    {
+        var sb = new StringBuilder();
+        foreach (XmlNode item in node.ChildNodes)
+        {
+            if (item.NodeType == XmlNodeType.Text)
+            {
+                sb.Append(item.InnerText.Trim());
+            }
+            else if(item is { NodeType: XmlNodeType.Element, Name: "br" })
+            {
+                sb.AppendLine();
+            }
+        }
+        return sb.ToString();
+    }
+
+    private static List<string> SplitMultipleRootElements(string xml)
+    {
+        return !MultiElementsFixRegex().IsMatch(xml) ? [] : MultiElementsFixRegex().Matches(xml).Select(m => m.Value).ToList();
+    }
+
+    public static WebVttSub ExtractFromMp4(string item, long segTimeMs, long baseTimestamp = 0L)
+    {
+        return ExtractFromMp4s([item], segTimeMs, baseTimestamp);
+    }
+
+    private static WebVttSub ExtractFromMp4s(IEnumerable<string> items, long segTimeMs, long baseTimestamp = 0L)
+    {
+        // read ttmls
+        List<string> xmls = [];
+        int segIndex = 0;
+        foreach (var item in items)
+        {
+            var dataSeg = File.ReadAllBytes(item);
+
+            var sawMDAT = false;
+            // parse media
+            new MP4Parser()
+                .Box("mdat", MP4Parser.AllData(data =>
+                {
+                    sawMDAT = true;
+                    // Join this to any previous payload, in case the mp4 has multiple
+                    // mdats.
+                    if (segTimeMs != 0)
+                    {
+                        var datas = SplitMultipleRootElements(Encoding.UTF8.GetString(data));
+                        foreach (var item in datas)
+                        {
+                            xmls.Add(ShiftTime(item, segTimeMs, segIndex));
+                        }
+                    }
+                    else
+                    {
+                        var datas = SplitMultipleRootElements(Encoding.UTF8.GetString(data));
+                        xmls.AddRange(datas);
+                    }
+                }))
+                .Parse(dataSeg,/* partialOkay= */ false);
+            segIndex++;
+        }
+
+        return ExtractSub(xmls, baseTimestamp);
+    }
+
+    public static WebVttSub ExtractFromTTML(string item, long segTimeMs, long baseTimestamp = 0L)
+    {
+        return ExtractFromTTMLs([item], segTimeMs, baseTimestamp);
+    }
+
+    public static WebVttSub ExtractFromTTMLs(IEnumerable<string> items, long segTimeMs, long baseTimestamp = 0L)
+    {
+        // read ttmls
+        List<string> xmls = [];
+        int segIndex = 0;
+        foreach (var item in items)
+        {
+            var xml = File.ReadAllText(item);
+            xmls.Add(segTimeMs != 0 ? ShiftTime(xml, segTimeMs, segIndex) : xml);
+            segIndex++;
+        }
+
+        return ExtractSub(xmls, baseTimestamp);
+    }
+
+    private static WebVttSub ExtractSub(List<string> xmls, long baseTimestamp)
+    {
+        // parsing
+        var xmlDoc = new XmlDocument();
+        var finalSubs = new List<SubEntity>();
+        XmlNode? headNode = null;
+        XmlNamespaceManager? nsMgr = null;
+        var regex = LabelFixRegex();
+        var attrRegex = AttrRegex();
+        foreach (var item in xmls)
+        {
+            var xmlContent = item;
+            if (!xmlContent.Contains("<tt")) continue;
+
+            // fix non-standard xml 
+            var xmlContentFix = xmlContent;
+            if (regex.IsMatch(xmlContent))
+            {
+                foreach (Match m in regex.Matches(xmlContentFix))
+                {
+                    try
+                    {
+                        var inner = m.Groups[1].Value;
+                        if (attrRegex.IsMatch(inner))
+                        {
+                            inner = attrRegex.Replace(inner, "");
+                        }
+                        new XmlDocument().LoadXml($"<p>{inner}</p>");
+                    }
+                    catch (Exception)
+                    {
+                        xmlContentFix = xmlContentFix.Replace(m.Groups[1].Value, System.Web.HttpUtility.HtmlEncode(m.Groups[1].Value));
+                    }
+                }
+            }
+            xmlDoc.LoadXml(xmlContentFix);
             var ttNode = xmlDoc.LastChild;
             if (nsMgr == null)
             {
@@ -79,309 +233,142 @@ namespace Mp4SubtitleParser
                 nsMgr = new XmlNamespaceManager(xmlDoc.NameTable);
                 nsMgr.AddNamespace("ns", ns);
             }
+            if (headNode == null)
+                headNode = ttNode!.SelectSingleNode("ns:head", nsMgr);
 
             var bodyNode = ttNode!.SelectSingleNode("ns:body", nsMgr);
             if (bodyNode == null)
-                return xmlSrc;
+                continue;
 
             var _div = bodyNode.SelectSingleNode("ns:div", nsMgr);
-            //Parse <p> label
+            if (_div == null)
+                continue;
+
+
+            // PNG Subs
+            var imageDic = new Dictionary<string, string>(); // id, Base64
+            if (ImageRegex().IsMatch(xmlDoc.InnerXml))
+            {
+                foreach (Match img in ImageRegex().Matches(xmlDoc.InnerXml))
+                {
+                    imageDic.Add(img.Groups[1].Value.Trim(), img.Groups[2].Value.Trim());
+                }
+            }
+
+            // convert <div> to <p>
+            if (_div!.SelectNodes("ns:p", nsMgr) == null || _div!.SelectNodes("ns:p", nsMgr)!.Count == 0)
+            {
+                foreach (XmlElement _tDiv in bodyNode.SelectNodes("ns:div", nsMgr)!)
+                {
+                    var _p = xmlDoc.CreateDocumentFragment();
+                    _p.InnerXml = _tDiv.OuterXml.Replace("<div ", "<p ").Replace("</div>", "</p>");
+                    _div.AppendChild(_p);
+                }
+            }
+
+            // Parse <p> label
             foreach (XmlElement _p in _div!.SelectNodes("ns:p", nsMgr)!)
             {
                 var _begin = _p.GetAttribute("begin");
                 var _end = _p.GetAttribute("end");
-                //Handle namespace
+                var _region = _p.GetAttribute("region");
+                var _bgImg = _p.GetAttribute("smpte:backgroundImage");
+                // Handle namespace
                 foreach (XmlAttribute attr in _p.Attributes)
                 {
                     if (attr.LocalName == "begin") _begin = attr.Value;
                     else if (attr.LocalName == "end") _end = attr.Value;
+                    else if (attr.LocalName == "region") _region = attr.Value;
                 }
-                _p.SetAttribute("begin", Add(_begin));
-                _p.SetAttribute("end", Add(_end));
-                //Console.WriteLine($"{_begin} {_p.GetAttribute("begin")}");
-                //Console.WriteLine($"{_end} {_p.GetAttribute("begin")}");
-            }
-
-            return xmlDoc.OuterXml;
-        }
-
-        private static string GetTextFromElement(XmlElement node)
-        {
-            var sb = new StringBuilder();
-            foreach (XmlNode item in node.ChildNodes)
-            {
-                if (item.NodeType == XmlNodeType.Text)
+                var sub = new SubEntity
                 {
-                    sb.Append(item.InnerText.Trim());
-                }
-                else if(item.NodeType == XmlNodeType.Element && item.Name == "br")
+                    Begin = _begin,
+                    End = _end,
+                    Region = _region
+                };
+
+                if (string.IsNullOrEmpty(_bgImg))
                 {
-                    sb.AppendLine();
-                }
-            }
-            return sb.ToString();
-        }
-
-        public static List<string> SplitMultipleRootElements(string xml)
-        {
-            if (!MultiElementsFixRegex().IsMatch(xml)) return new List<string>();
-            return MultiElementsFixRegex().Matches(xml).Select(m => m.Value).ToList();
-        }
-
-        public static WebVttSub ExtractFromMp4(string item, long segTimeMs, long baseTimestamp = 0L)
-        {
-            return ExtractFromMp4s(new string[] { item }, segTimeMs, baseTimestamp);
-        }
-
-        public static WebVttSub ExtractFromMp4s(IEnumerable<string> items, long segTimeMs, long baseTimestamp = 0L)
-        {
-            //read ttmls
-            List<string> xmls = new List<string>();
-            int segIndex = 0;
-            foreach (var item in items)
-            {
-                var dataSeg = File.ReadAllBytes(item);
-
-                var sawMDAT = false;
-                //parse media
-                new MP4Parser()
-                    .Box("mdat", MP4Parser.AllData((data) =>
+                    var _spans = _p.ChildNodes;
+                    // Collect <span>
+                    foreach (XmlNode _node in _spans)
                     {
-                        sawMDAT = true;
-                        // Join this to any previous payload, in case the mp4 has multiple
-                        // mdats.
-                        if (segTimeMs != 0)
+                        if (_node.NodeType == XmlNodeType.Element)
                         {
-                            var datas = SplitMultipleRootElements(Encoding.UTF8.GetString(data));
-                            foreach (var item in datas)
-                            {
-                                xmls.Add(ShiftTime(item, segTimeMs, segIndex));
-                            }
+                            var _span = (XmlElement)_node;
+                            if (string.IsNullOrEmpty(_span.InnerText))
+                                continue;
+                            sub.Contents.Add(_span);
+                            sub.ContentStrings.Add(_span.OuterXml);
                         }
-                        else
-                        {
-                            var datas = SplitMultipleRootElements(Encoding.UTF8.GetString(data));
-                            foreach (var item in datas)
-                            {
-                                xmls.Add(item);
-                            }
-                        }
-                    }))
-                    .Parse(dataSeg,/* partialOkay= */ false);
-                segIndex++;
-            }
-
-            return ExtractSub(xmls, baseTimestamp);
-        }
-
-        public static WebVttSub ExtractFromTTML(string item, long segTimeMs, long baseTimestamp = 0L)
-        {
-            return ExtractFromTTMLs(new string[] { item }, segTimeMs, baseTimestamp);
-        }
-
-        public static WebVttSub ExtractFromTTMLs(IEnumerable<string> items, long segTimeMs, long baseTimestamp = 0L)
-        {
-            //read ttmls
-            List<string> xmls = new List<string>();
-            int segIndex = 0;
-            foreach (var item in items)
-            {
-                var xml = File.ReadAllText(item);
-                if (segTimeMs != 0)
-                {
-                    xmls.Add(ShiftTime(xml, segTimeMs, segIndex));
-                }
-                else
-                {
-                    xmls.Add(xml);
-                }
-                segIndex++;
-            }
-
-            return ExtractSub(xmls, baseTimestamp);
-        }
-
-        private static WebVttSub ExtractSub(List<string> xmls, long baseTimestamp)
-        {
-            //parsing
-            var xmlDoc = new XmlDocument();
-            var finalSubs = new List<SubEntity>();
-            XmlNode? headNode = null;
-            XmlNamespaceManager? nsMgr = null;
-            var regex = LabelFixRegex();
-            var attrRegex = AttrRegex();
-            foreach (var item in xmls)
-            {
-                var xmlContent = item;
-                if (!xmlContent.Contains("<tt")) continue;
-
-                //fix non-standard xml 
-                var xmlContentFix = xmlContent;
-                if (regex.IsMatch(xmlContent))
-                {
-                    foreach (Match m in regex.Matches(xmlContentFix))
-                    {
-                        try
-                        {
-                            var inner = m.Groups[1].Value;
-                            if (attrRegex.IsMatch(inner))
-                            {
-                                inner = attrRegex.Replace(inner, "");
-                            }
-                            new XmlDocument().LoadXml($"<p>{inner}</p>");
-                        }
-                        catch (Exception)
-                        {
-                            xmlContentFix = xmlContentFix.Replace(m.Groups[1].Value, System.Web.HttpUtility.HtmlEncode(m.Groups[1].Value));
-                        }
-                    }
-                }
-                xmlDoc.LoadXml(xmlContentFix);
-                var ttNode = xmlDoc.LastChild;
-                if (nsMgr == null)
-                {
-                    var ns = ((XmlElement)ttNode!).GetAttribute("xmlns");
-                    nsMgr = new XmlNamespaceManager(xmlDoc.NameTable);
-                    nsMgr.AddNamespace("ns", ns);
-                }
-                if (headNode == null)
-                    headNode = ttNode!.SelectSingleNode("ns:head", nsMgr);
-
-                var bodyNode = ttNode!.SelectSingleNode("ns:body", nsMgr);
-                if (bodyNode == null)
-                    continue;
-
-                var _div = bodyNode.SelectSingleNode("ns:div", nsMgr);
-                if (_div == null)
-                    continue;
-
-
-                //PNG Subs
-                var imageDic = new Dictionary<string, string>(); //id, Base64
-                if (ImageRegex().IsMatch(xmlDoc.InnerXml))
-                {
-                    foreach (Match img in ImageRegex().Matches(xmlDoc.InnerXml))
-                    {
-                        imageDic.Add(img.Groups[1].Value.Trim(), img.Groups[2].Value.Trim());
-                    }
-                }
-
-                //convert <div> to <p>
-                if (_div!.SelectNodes("ns:p", nsMgr) == null || _div!.SelectNodes("ns:p", nsMgr)!.Count == 0)
-                {
-                    foreach (XmlElement _tDiv in bodyNode.SelectNodes("ns:div", nsMgr)!)
-                    {
-                        var _p = xmlDoc.CreateDocumentFragment();
-                        _p.InnerXml = _tDiv.OuterXml.Replace("<div ", "<p ").Replace("</div>", "</p>");
-                        _div.AppendChild(_p);
-                    }
-                }
-
-                //Parse <p> label
-                foreach (XmlElement _p in _div!.SelectNodes("ns:p", nsMgr)!)
-                {
-                    var _begin = _p.GetAttribute("begin");
-                    var _end = _p.GetAttribute("end");
-                    var _region = _p.GetAttribute("region");
-                    var _bgImg = _p.GetAttribute("smpte:backgroundImage");
-                    //Handle namespace
-                    foreach (XmlAttribute attr in _p.Attributes)
-                    {
-                        if (attr.LocalName == "begin") _begin = attr.Value;
-                        else if (attr.LocalName == "end") _end = attr.Value;
-                        else if (attr.LocalName == "region") _region = attr.Value;
-                    }
-                    var sub = new SubEntity
-                    {
-                        Begin = _begin,
-                        End = _end,
-                        Region = _region
-                    };
-
-                    if (string.IsNullOrEmpty(_bgImg))
-                    {
-                        var _spans = _p.ChildNodes;
-                        //Collect <span>
-                        foreach (XmlNode _node in _spans)
-                        {
-                            if (_node.NodeType == XmlNodeType.Element)
-                            {
-                                var _span = (XmlElement)_node;
-                                if (string.IsNullOrEmpty(_span.InnerText))
-                                    continue;
-                                sub.Contents.Add(_span);
-                                sub.ContentStrings.Add(_span.OuterXml);
-                            }
-                            else if (_node.NodeType == XmlNodeType.Text)
-                            {
-                                var _span = new XmlDocument().CreateElement("span");
-                                _span.InnerText = _node.Value!;
-                                sub.Contents.Add(_span);
-                                sub.ContentStrings.Add(_span.OuterXml);
-                            }
-                        }
-                    }
-                    else
-                    {
-                        var id = _bgImg.Replace("#", "");
-                        if (imageDic.ContainsKey(id))
+                        else if (_node.NodeType == XmlNodeType.Text)
                         {
                             var _span = new XmlDocument().CreateElement("span");
-                            _span.InnerText = $"Base64::{imageDic[id]}";
+                            _span.InnerText = _node.Value!;
                             sub.Contents.Add(_span);
                             sub.ContentStrings.Add(_span.OuterXml);
                         }
                     }
-                    
-                    //Check if one <p> has been splitted
-                    var index = finalSubs.FindLastIndex(s => s.End == _begin && s.Region == _region && s.ContentStrings.SequenceEqual(sub.ContentStrings));
-                    //Skip empty lines
-                    if (sub.ContentStrings.Count > 0)
-                    {
-                        //Extend <p> duration
-                        if (index != -1)
-                            finalSubs[index].End = sub.End;
-                        else if (!finalSubs.Contains(sub))
-                            finalSubs.Add(sub);
-                    }
                 }
-            }
-
-
-            var dic = new Dictionary<string, string>();
-            foreach (var sub in finalSubs)
-            {
-                var key = $"{sub.Begin} --> {sub.End}";
-                foreach (var item in sub.Contents)
+                else
                 {
-                    if (dic.ContainsKey(key))
+                    var id = _bgImg.Replace("#", "");
+                    if (imageDic.TryGetValue(id, out var value))
                     {
-                        if (item.GetAttribute("tts:fontStyle") == "italic" || item.GetAttribute("tts:fontStyle") == "oblique")
-                            dic[key] = $"{dic[key]}\r\n<i>{GetTextFromElement(item)}</i>";
-                        else
-                            dic[key] = $"{dic[key]}\r\n{GetTextFromElement(item)}";
-                    }
-                    else
-                    {
-                        if (item.GetAttribute("tts:fontStyle") == "italic" || item.GetAttribute("tts:fontStyle") == "oblique")
-                            dic.Add(key, $"<i>{GetTextFromElement(item)}</i>");
-                        else
-                            dic.Add(key, GetTextFromElement(item));
+                        var _span = new XmlDocument().CreateElement("span");
+                        _span.InnerText = $"Base64::{value}";
+                        sub.Contents.Add(_span);
+                        sub.ContentStrings.Add(_span.OuterXml);
                     }
                 }
+                    
+                // Check if one <p> has been splitted
+                var index = finalSubs.FindLastIndex(s => s.End == _begin && s.Region == _region && s.ContentStrings.SequenceEqual(sub.ContentStrings));
+                // Skip empty lines
+                if (sub.ContentStrings.Count <= 0)
+                    continue;
+                // Extend <p> duration
+                if (index != -1)
+                    finalSubs[index].End = sub.End;
+                else if (!finalSubs.Contains(sub))
+                    finalSubs.Add(sub);
             }
-
-
-            StringBuilder vtt = new StringBuilder();
-            vtt.AppendLine("WEBVTT");
-            foreach (var item in dic)
-            {
-                vtt.AppendLine(item.Key);
-                vtt.AppendLine(item.Value);
-                vtt.AppendLine();
-            }
-
-            return WebVttSub.Parse(vtt.ToString(), baseTimestamp);
         }
+
+
+        var dic = new Dictionary<string, string>();
+        foreach (var sub in finalSubs)
+        {
+            var key = $"{sub.Begin} --> {sub.End}";
+            foreach (var item in sub.Contents)
+            {
+                if (dic.ContainsKey(key))
+                {
+                    if (item.GetAttribute("tts:fontStyle") == "italic" || item.GetAttribute("tts:fontStyle") == "oblique")
+                        dic[key] = $"{dic[key]}\r\n<i>{GetTextFromElement(item)}</i>";
+                    else
+                        dic[key] = $"{dic[key]}\r\n{GetTextFromElement(item)}";
+                }
+                else
+                {
+                    if (item.GetAttribute("tts:fontStyle") == "italic" || item.GetAttribute("tts:fontStyle") == "oblique")
+                        dic.Add(key, $"<i>{GetTextFromElement(item)}</i>");
+                    else
+                        dic.Add(key, GetTextFromElement(item));
+                }
+            }
+        }
+
+
+        var vtt = new StringBuilder();
+        vtt.AppendLine("WEBVTT");
+        foreach (var item in dic)
+        {
+            vtt.AppendLine(item.Key);
+            vtt.AppendLine(item.Value);
+            vtt.AppendLine();
+        }
+
+        return WebVttSub.Parse(vtt.ToString(), baseTimestamp);
     }
 }

src/N_m3u8DL-RE.Parser/Mp4/MP4VttUtil.cs

@@ -1,216 +1,213 @@
 using N_m3u8DL_RE.Common.Entity;
 using System.Text;
 
-namespace Mp4SubtitleParser
+namespace Mp4SubtitleParser;
+
+public static class MP4VttUtil
 {
-    public class MP4VttUtil
+    public static (bool, uint) CheckInit(byte[] data)
     {
-        public static (bool, uint) CheckInit(byte[] data)
-        {
-            uint timescale = 0;
-            bool sawWVTT = false;
+        uint timescale = 0;
+        bool sawWVTT = false;
 
-            //parse init
-            new MP4Parser()
-                .Box("moov", MP4Parser.Children)
-                .Box("trak", MP4Parser.Children)
-                .Box("mdia", MP4Parser.Children)
-                .FullBox("mdhd", (box) =>
-                {
-                    if (!(box.Version == 0 || box.Version == 1))
-                        throw new Exception("MDHD version can only be 0 or 1");
-                    timescale = MP4Parser.ParseMDHD(box.Reader, box.Version);
-                })
-                .Box("minf", MP4Parser.Children)
-                .Box("stbl", MP4Parser.Children)
-                .FullBox("stsd", MP4Parser.SampleDescription)
-                .Box("wvtt", (box) => {
-                    // A valid vtt init segment, though we have no actual subtitles yet.
-                    sawWVTT = true;
-                })
-                .Parse(data);
-
-            return (sawWVTT, timescale);
-        }
-
-        public static WebVttSub ExtractSub(IEnumerable<string> files, uint timescale)
-        {
-            if (timescale == 0)
-                throw new Exception("Missing timescale for VTT content!");
-
-            List<SubCue> cues = new();
-
-            foreach (var item in files)
+        // parse init
+        new MP4Parser()
+            .Box("moov", MP4Parser.Children)
+            .Box("trak", MP4Parser.Children)
+            .Box("mdia", MP4Parser.Children)
+            .FullBox("mdhd", box =>
             {
-                var dataSeg = File.ReadAllBytes(item);
+                if (box.Version is not (0 or 1))
+                    throw new Exception("MDHD version can only be 0 or 1");
+                timescale = MP4Parser.ParseMDHD(box.Reader, box.Version);
+            })
+            .Box("minf", MP4Parser.Children)
+            .Box("stbl", MP4Parser.Children)
+            .FullBox("stsd", MP4Parser.SampleDescription)
+            .Box("wvtt", _ => {
+                // A valid vtt init segment, though we have no actual subtitles yet.
+                sawWVTT = true;
+            })
+            .Parse(data);
 
-                bool sawTFDT = false;
-                bool sawTRUN = false;
-                bool sawMDAT = false;
-                byte[]? rawPayload = null;
-                ulong baseTime = 0;
-                ulong defaultDuration = 0;
-                List<Sample> presentations = new();
+        return (sawWVTT, timescale);
+    }
+
+    public static WebVttSub ExtractSub(IEnumerable<string> files, uint timescale)
+    {
+        if (timescale == 0)
+            throw new Exception("Missing timescale for VTT content!");
+
+        List<SubCue> cues = [];
+
+        foreach (var item in files)
+        {
+            var dataSeg = File.ReadAllBytes(item);
+
+            bool sawTFDT = false;
+            bool sawTRUN = false;
+            bool sawMDAT = false;
+            byte[]? rawPayload = null;
+            ulong baseTime = 0;
+            ulong defaultDuration = 0;
+            List<Sample> presentations = [];
 
 
-                //parse media
-                new MP4Parser()
-                    .Box("moof", MP4Parser.Children)
-                    .Box("traf", MP4Parser.Children)
-                    .FullBox("tfdt", (box) =>
-                    {
-                        sawTFDT = true;
-                        if (!(box.Version == 0 || box.Version == 1))
-                            throw new Exception("TFDT version can only be 0 or 1");
-                        baseTime = MP4Parser.ParseTFDT(box.Reader, box.Version);
-                    })
-                    .FullBox("tfhd", (box) =>
-                    {
-                        if (box.Flags == 1000)
-                            throw new Exception("A TFHD box should have a valid flags value");
-                        defaultDuration = MP4Parser.ParseTFHD(box.Reader, box.Flags).DefaultSampleDuration;
-                    })
-                    .FullBox("trun", (box) =>
-                    {
-                        sawTRUN = true;
-                        if (box.Version == 1000)
-                            throw new Exception("A TRUN box should have a valid version value");
-                        if (box.Flags == 1000)
-                            throw new Exception("A TRUN box should have a valid flags value");
-                        presentations = MP4Parser.ParseTRUN(box.Reader, box.Version, box.Flags).SampleData;
-                    })
-                    .Box("mdat", MP4Parser.AllData((data) =>
-                    {
-                        if (sawMDAT)
-                            throw new Exception("VTT cues in mp4 with multiple MDAT are not currently supported");
-                        sawMDAT = true;
-                        rawPayload = data;
-                    }))
-                    .Parse(dataSeg,/* partialOkay= */ false);
-
-                if (!sawMDAT && !sawTFDT && !sawTRUN)
+            // parse media
+            new MP4Parser()
+                .Box("moof", MP4Parser.Children)
+                .Box("traf", MP4Parser.Children)
+                .FullBox("tfdt", box =>
                 {
-                    throw new Exception("A required box is missing");
-                }
-
-                var currentTime = baseTime;
-                var reader = new BinaryReader2(new MemoryStream(rawPayload!));
-
-                foreach (var presentation in presentations)
+                    sawTFDT = true;
+                    if (box.Version is not (0 or 1))
+                        throw new Exception("TFDT version can only be 0 or 1");
+                    baseTime = MP4Parser.ParseTFDT(box.Reader, box.Version);
+                })
+                .FullBox("tfhd", box =>
                 {
-                    var duration = presentation.SampleDuration == 0 ? defaultDuration : presentation.SampleDuration;
-                    var startTime = presentation.SampleCompositionTimeOffset != 0 ?
-                          baseTime + presentation.SampleCompositionTimeOffset :
-                          currentTime;
-                    currentTime = startTime + duration;
-                    var totalSize = 0;
-                    do
+                    if (box.Flags == 1000)
+                        throw new Exception("A TFHD box should have a valid flags value");
+                    defaultDuration = MP4Parser.ParseTFHD(box.Reader, box.Flags).DefaultSampleDuration;
+                })
+                .FullBox("trun", box =>
+                {
+                    sawTRUN = true;
+                    if (box.Version == 1000)
+                        throw new Exception("A TRUN box should have a valid version value");
+                    if (box.Flags == 1000)
+                        throw new Exception("A TRUN box should have a valid flags value");
+                    presentations = MP4Parser.ParseTRUN(box.Reader, box.Version, box.Flags).SampleData;
+                })
+                .Box("mdat", MP4Parser.AllData(data =>
+                {
+                    if (sawMDAT)
+                        throw new Exception("VTT cues in mp4 with multiple MDAT are not currently supported");
+                    sawMDAT = true;
+                    rawPayload = data;
+                }))
+                .Parse(dataSeg,/* partialOkay= */ false);
+
+            if (!sawMDAT && !sawTFDT && !sawTRUN)
+            {
+                throw new Exception("A required box is missing");
+            }
+
+            var currentTime = baseTime;
+            var reader = new BinaryReader2(new MemoryStream(rawPayload!));
+
+            foreach (var presentation in presentations)
+            {
+                var duration = presentation.SampleDuration == 0 ? defaultDuration : presentation.SampleDuration;
+                var startTime = presentation.SampleCompositionTimeOffset != 0 ?
+                    baseTime + presentation.SampleCompositionTimeOffset :
+                    currentTime;
+                currentTime = startTime + duration;
+                var totalSize = 0;
+                do
+                {
+                    // Read the payload size.
+                    var payloadSize = (int)reader.ReadUInt32();
+                    totalSize += payloadSize;
+
+                    // Skip the type.
+                    var payloadType = reader.ReadUInt32();
+                    var payloadName = MP4Parser.TypeToString(payloadType);
+
+                    // Read the data payload.
+                    byte[]? payload = null;
+                    if (payloadName == "vttc")
                     {
-                        // Read the payload size.
-                        var payloadSize = (int)reader.ReadUInt32();
-                        totalSize += payloadSize;
-
-                        // Skip the type.
-                        var payloadType = reader.ReadUInt32();
-                        var payloadName = MP4Parser.TypeToString(payloadType);
-
-                        // Read the data payload.
-                        byte[]? payload = null;
-                        if (payloadName == "vttc")
+                        if (payloadSize > 8)
                         {
-                            if (payloadSize > 8)
+                            payload = reader.ReadBytes(payloadSize - 8);
+                        }
+                    }
+                    else if (payloadName == "vtte")
+                    {
+                        // It's a vtte, which is a vtt cue that is empty. Ignore any data that
+                        // does exist.
+                        reader.ReadBytes(payloadSize - 8);
+                    }
+                    else
+                    {
+                        Console.WriteLine($"Unknown box {payloadName}! Skipping!");
+                        reader.ReadBytes(payloadSize - 8);
+                    }
+
+                    if (duration != 0)
+                    {
+                        if (payload != null)
+                        {
+                            var cue = ParseVTTC(
+                                payload,
+                                0 + (double)startTime / timescale,
+                                0 + (double)currentTime / timescale);
+                            // Check if same subtitle has been splitted
+                            if (cue != null)
                             {
-                                payload = reader.ReadBytes(payloadSize - 8);
-                            }
-                        }
-                        else if (payloadName == "vtte")
-                        {
-                            // It's a vtte, which is a vtt cue that is empty. Ignore any data that
-                            // does exist.
-                            reader.ReadBytes(payloadSize - 8);
-                        }
-                        else
-                        {
-                            Console.WriteLine($"Unknown box {payloadName}! Skipping!");
-                            reader.ReadBytes(payloadSize - 8);
-                        }
-
-                        if (duration != 0)
-                        {
-                            if (payload != null)
-                            {
-                                if (timescale == 0)
-                                    throw new Exception("Timescale should not be zero!");
-                                var cue = ParseVTTC(
-                                    payload,
-                                    0 + (double)startTime / timescale,
-                                    0 + (double)currentTime / timescale);
-                                //Check if same subtitle has been splitted
-                                if (cue != null)
+                                var index = cues.FindLastIndex(s => s.EndTime == cue.StartTime && s.Settings == cue.Settings && s.Payload == cue.Payload);
+                                if (index != -1)
                                 {
-                                    var index = cues.FindLastIndex(s => s.EndTime == cue.StartTime && s.Settings == cue.Settings && s.Payload == cue.Payload);
-                                    if (index != -1)
-                                    {
-                                        cues[index].EndTime = cue.EndTime;
-                                    }
-                                    else
-                                    {
-                                        cues.Add(cue);
-                                    }
+                                    cues[index].EndTime = cue.EndTime;
+                                }
+                                else
+                                {
+                                    cues.Add(cue);
                                 }
                             }
                         }
-                        else
-                        {
-                            throw new Exception("WVTT sample duration unknown, and no default found!");
-                        }
-
-                        if (!(presentation.SampleSize == 0 || totalSize <= presentation.SampleSize))
-                        {
-                            throw new Exception("The samples do not fit evenly into the sample sizes given in the TRUN box!");
-                        }
-
-                    } while (presentation.SampleSize != 0 && (totalSize < presentation.SampleSize));
-
-                    if (reader.HasMoreData())
-                    {
-                        //throw new Exception("MDAT which contain VTT cues and non-VTT data are not currently supported!");
                     }
+                    else
+                    {
+                        throw new Exception("WVTT sample duration unknown, and no default found!");
+                    }
+
+                    if (!(presentation.SampleSize == 0 || totalSize <= presentation.SampleSize))
+                    {
+                        throw new Exception("The samples do not fit evenly into the sample sizes given in the TRUN box!");
+                    }
+
+                } while (presentation.SampleSize != 0 && (totalSize < presentation.SampleSize));
+
+                if (reader.HasMoreData())
+                {
+                    // throw new Exception("MDAT which contain VTT cues and non-VTT data are not currently supported!");
                 }
             }
-
-            if (cues.Count > 0)
-            {
-                return new WebVttSub() { Cues = cues };
-            }
-            return new WebVttSub();
         }
 
-        private static SubCue? ParseVTTC(byte[] data, double startTime, double endTime)
+        if (cues.Count > 0)
         {
-            string payload = string.Empty;
-            string id = string.Empty;
-            string settings = string.Empty;
-            new MP4Parser()
-                .Box("payl", MP4Parser.AllData((data) =>
-                {
-                    payload = Encoding.UTF8.GetString(data);
-                }))
-                .Box("iden", MP4Parser.AllData((data) =>
-                {
-                    id = Encoding.UTF8.GetString(data);
-                }))
-                .Box("sttg", MP4Parser.AllData((data) =>
-                {
-                    settings = Encoding.UTF8.GetString(data);
-                }))
-                .Parse(data);
-
-            if (!string.IsNullOrEmpty(payload))
-            {
-                return new SubCue() { StartTime = TimeSpan.FromSeconds(startTime), EndTime = TimeSpan.FromSeconds(endTime), Payload = payload, Settings = settings };
-            }
-            return null;
+            return new WebVttSub() { Cues = cues };
         }
+        return new WebVttSub();
+    }
+
+    private static SubCue? ParseVTTC(byte[] data, double startTime, double endTime)
+    {
+        string payload = string.Empty;
+        string id = string.Empty;
+        string settings = string.Empty;
+        new MP4Parser()
+            .Box("payl", MP4Parser.AllData(data =>
+            {
+                payload = Encoding.UTF8.GetString(data);
+            }))
+            .Box("iden", MP4Parser.AllData(data =>
+            {
+                id = Encoding.UTF8.GetString(data);
+            }))
+            .Box("sttg", MP4Parser.AllData(data =>
+            {
+                settings = Encoding.UTF8.GetString(data);
+            }))
+            .Parse(data);
+
+        if (!string.IsNullOrEmpty(payload))
+        {
+            return new SubCue() { StartTime = TimeSpan.FromSeconds(startTime), EndTime = TimeSpan.FromSeconds(endTime), Payload = payload, Settings = settings };
+        }
+        return null;
     }
 }

src/N_m3u8DL-RE.Parser/N_m3u8DL-RE.Parser.csproj

@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-	<OutputType>library</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <OutputType>library</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>N_m3u8DL_RE.Parser</RootNamespace>
     <ImplicitUsings>enable</ImplicitUsings>
-	<LangVersion>preview</LangVersion>
+    <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

src/N_m3u8DL-RE.Parser/Processor/ContentProcessor.cs

@@ -1,16 +1,10 @@
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Parser.Config;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Processor
+namespace N_m3u8DL_RE.Parser.Processor;
+
+public abstract class ContentProcessor
 {
-    public abstract class ContentProcessor
-    {
-        public abstract bool CanProcess(ExtractorType extractorType, string rawText, ParserConfig parserConfig);
-        public abstract string Process(string rawText, ParserConfig parserConfig);
-    }
+    public abstract bool CanProcess(ExtractorType extractorType, string rawText, ParserConfig parserConfig);
+    public abstract string Process(string rawText, ParserConfig parserConfig);
 }

src/N_m3u8DL-RE.Parser/Processor/DASH/DefaultDASHContentProcessor.cs

@@ -1,36 +1,26 @@
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Parser.Config;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Processor.DASH
+namespace N_m3u8DL_RE.Parser.Processor.DASH;
+
+/// <summary>
+/// XG视频处理
+/// </summary>
+public class DefaultDASHContentProcessor : ContentProcessor
 {
-    /// <summary>
-    /// 西瓜视频处理
-    /// </summary>
-    public class DefaultDASHContentProcessor : ContentProcessor
+    public override bool CanProcess(ExtractorType extractorType, string mpdContent, ParserConfig parserConfig)
     {
-        public override bool CanProcess(ExtractorType extractorType, string mpdContent, ParserConfig parserConfig)
-        {
-            if (extractorType != ExtractorType.MPEG_DASH) return false;
+        if (extractorType != ExtractorType.MPEG_DASH) return false;
 
-            if (mpdContent.Contains("<mas:") && !mpdContent.Contains("xmlns:mas"))
-            {
-                return true;
-            }
-            return false;
-        }
+        return mpdContent.Contains("<mas:") && !mpdContent.Contains("xmlns:mas");
+    }
 
-        public override string Process(string mpdContent, ParserConfig parserConfig)
-        {
-            Logger.Debug("Fix xigua mpd...");
-            mpdContent = mpdContent.Replace("<MPD ", "<MPD xmlns:mas=\"urn:marlin:mas:1-0:services:schemas:mpd\" ");
+    public override string Process(string mpdContent, ParserConfig parserConfig)
+    {
+        Logger.Debug("Fix xigua mpd...");
+        mpdContent = mpdContent.Replace("<MPD ", "<MPD xmlns:mas=\"urn:marlin:mas:1-0:services:schemas:mpd\" ");
 
-            return mpdContent;
-        }
+        return mpdContent;
     }
 }

src/N_m3u8DL-RE.Parser/Processor/DefaultUrlProcessor.cs

@@ -1,46 +1,37 @@
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Parser.Config;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 using System.Web;
 
-namespace N_m3u8DL_RE.Parser.Processor
+namespace N_m3u8DL_RE.Parser.Processor;
+
+public class DefaultUrlProcessor : UrlProcessor
 {
-    public class DefaultUrlProcessor : UrlProcessor
+    public override bool CanProcess(ExtractorType extractorType, string oriUrl, ParserConfig paserConfig) => paserConfig.AppendUrlParams;
+
+    public override string Process(string oriUrl, ParserConfig paserConfig)
     {
-        public override bool CanProcess(ExtractorType extractorType, string oriUrl, ParserConfig paserConfig) => paserConfig.AppendUrlParams;
+        if (!oriUrl.StartsWith("http")) return oriUrl;
         
-        public override string Process(string oriUrl, ParserConfig paserConfig)
+        var uriFromConfig = new Uri(paserConfig.Url);
+        var uriFromConfigQuery = HttpUtility.ParseQueryString(uriFromConfig.Query);
+
+        var oldUri = new Uri(oriUrl);
+        var newQuery = HttpUtility.ParseQueryString(oldUri.Query);
+        foreach (var item in uriFromConfigQuery.AllKeys)
         {
-            if (oriUrl.StartsWith("http")) 
-            {
-                var uriFromConfig = new Uri(paserConfig.Url);
-                var uriFromConfigQuery = HttpUtility.ParseQueryString(uriFromConfig.Query);
-
-                var oldUri = new Uri(oriUrl);
-                var newQuery = HttpUtility.ParseQueryString(oldUri.Query);
-                foreach (var item in uriFromConfigQuery.AllKeys)
-                {
-                    if (newQuery.AllKeys.Contains(item))
-                        newQuery.Set(item, uriFromConfigQuery.Get(item));
-                    else
-                        newQuery.Add(item, uriFromConfigQuery.Get(item));
-                }
-
-                if (!string.IsNullOrEmpty(newQuery.ToString()))
-                {
-                    Logger.Debug("Before: " + oriUrl);
-                    oriUrl = (oldUri.GetLeftPart(UriPartial.Path) + "?" + newQuery.ToString()).TrimEnd('?');
-                    Logger.Debug("After: " + oriUrl);
-                }
-            }
-
-            return oriUrl;
+            if (newQuery.AllKeys.Contains(item))
+                newQuery.Set(item, uriFromConfigQuery.Get(item));
+            else
+                newQuery.Add(item, uriFromConfigQuery.Get(item));
         }
+
+        if (string.IsNullOrEmpty(newQuery.ToString())) return oriUrl;
+        
+        Logger.Debug("Before: " + oriUrl);
+        oriUrl = (oldUri.GetLeftPart(UriPartial.Path) + "?" + newQuery).TrimEnd('?');
+        Logger.Debug("After: " + oriUrl);
+
+        return oriUrl;
     }
 }

src/N_m3u8DL-RE.Parser/Processor/HLS/DefaultHLSContentProcessor.cs

@@ -1,108 +1,96 @@
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Parser.Constants;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Processor.HLS
+namespace N_m3u8DL_RE.Parser.Processor.HLS;
+
+public partial class DefaultHLSContentProcessor : ContentProcessor
 {
-    public partial class DefaultHLSContentProcessor : ContentProcessor
+    [GeneratedRegex("#EXT-X-DISCONTINUITY\\s+#EXT-X-MAP:URI=\\\"(.*?)\\\",BYTERANGE=\\\"(.*?)\\\"")]
+    private static partial Regex YkDVRegex();
+    [GeneratedRegex("#EXT-X-MAP:URI=\\\".*?BUMPER/[\\s\\S]+?#EXT-X-DISCONTINUITY")]
+    private static partial Regex DNSPRegex();
+    [GeneratedRegex(@"#EXTINF:.*?,\s+.*BUMPER.*\s+?#EXT-X-DISCONTINUITY")]
+    private static partial Regex DNSPSubRegex();
+    [GeneratedRegex("(#EXTINF.*)(\\s+)(#EXT-X-KEY.*)")]
+    private static partial Regex OrderFixRegex();
+    [GeneratedRegex(@"#EXT-X-MAP.*\.apple\.com/")]
+    private static partial Regex ATVRegex();
+    [GeneratedRegex(@"(#EXT-X-KEY:[\s\S]*?)(#EXT-X-DISCONTINUITY|#EXT-X-ENDLIST)")]
+    private static partial Regex ATVRegex2();
+
+    public override bool CanProcess(ExtractorType extractorType, string rawText, ParserConfig parserConfig) => extractorType == ExtractorType.HLS;
+
+    public override string Process(string m3u8Content, ParserConfig parserConfig)
     {
-        [GeneratedRegex("#EXT-X-DISCONTINUITY\\s+#EXT-X-MAP:URI=\\\"(.*?)\\\",BYTERANGE=\\\"(.*?)\\\"")]
-        private static partial Regex YkDVRegex();
-        [GeneratedRegex("#EXT-X-MAP:URI=\\\".*?BUMPER/[\\s\\S]+?#EXT-X-DISCONTINUITY")]
-        private static partial Regex DNSPRegex();
-        [GeneratedRegex("#EXTINF:.*?,\\s+.*BUMPER.*\\s+?#EXT-X-DISCONTINUITY")]
-        private static partial Regex DNSPSubRegex();
-        [GeneratedRegex("(#EXTINF.*)(\\s+)(#EXT-X-KEY.*)")]
-        private static partial Regex OrderFixRegex();
-        [GeneratedRegex("#EXT-X-MAP.*\\.apple\\.com/")]
-        private static partial Regex ATVRegex();
-        [GeneratedRegex("(#EXT-X-KEY:[\\s\\S]*?)(#EXT-X-DISCONTINUITY|#EXT-X-ENDLIST)")]
-        private static partial Regex ATVRegex2();
-
-        public override bool CanProcess(ExtractorType extractorType, string rawText, ParserConfig parserConfig) => extractorType == ExtractorType.HLS;
-
-        public override string Process(string m3u8Content, ParserConfig parserConfig)
+        // 处理content以\r作为换行符的情况
+        if (m3u8Content.Contains('\r') && !m3u8Content.Contains('\n'))
         {
-            //处理content以\r作为换行符的情况
-            if (m3u8Content.Contains("\r") && !m3u8Content.Contains("\n"))
-            {
-                m3u8Content = m3u8Content.Replace("\r", Environment.NewLine);
-            }
-
-            var m3u8Url = parserConfig.Url;
-            //央视频回放
-            if (m3u8Url.Contains("tlivecloud-playback-cdn.ysp.cctv.cn") && m3u8Url.Contains("endtime="))
-            {
-                m3u8Content += Environment.NewLine + HLSTags.ext_x_endlist;
-            }
-
-            //IMOOC
-            if (m3u8Url.Contains("imooc.com/"))
-            {
-                //M3u8Content = DecodeImooc.DecodeM3u8(M3u8Content);
-            }
-
-            //iqy
-            if (m3u8Content.StartsWith("{\"payload\""))
-            {
-                //
-            }
-
-            //针对优酷#EXT-X-VERSION:7杜比视界片源修正
-            if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("#EXT-X-MAP") && m3u8Content.Contains("ott.cibntv.net") && m3u8Content.Contains("ccode="))
-            {
-                Regex ykmap = YkDVRegex();
-                foreach (Match m in ykmap.Matches(m3u8Content))
-                {
-                    m3u8Content = m3u8Content.Replace(m.Value, $"#EXTINF:0.000000,\n#EXT-X-BYTERANGE:{m.Groups[2].Value}\n{m.Groups[1].Value}");
-                }
-            }
-
-            //针对Disney+修正
-            if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("#EXT-X-MAP") && m3u8Url.Contains("media.dssott.com/"))
-            {
-                Regex ykmap = DNSPRegex();
-                if (ykmap.IsMatch(m3u8Content))
-                {
-                    m3u8Content = m3u8Content.Replace(ykmap.Match(m3u8Content).Value, "#XXX");
-                }
-            }
-
-            //针对Disney+字幕修正
-            if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("seg_00000.vtt") && m3u8Url.Contains("media.dssott.com/"))
-            {
-                Regex ykmap = DNSPSubRegex();
-                if (ykmap.IsMatch(m3u8Content))
-                {
-                    m3u8Content = m3u8Content.Replace(ykmap.Match(m3u8Content).Value, "#XXX");
-                }
-            }
-
-            //针对AppleTv修正
-            if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("#EXT-X-MAP") && (m3u8Url.Contains(".apple.com/") || ATVRegex().IsMatch(m3u8Content)))
-            {
-                //只取加密部分即可
-                Regex ykmap = ATVRegex2();
-                if (ykmap.IsMatch(m3u8Content))
-                {
-                    m3u8Content = "#EXTM3U\r\n" + ykmap.Match(m3u8Content).Groups[1].Value + "\r\n#EXT-X-ENDLIST";
-                }
-            }
-
-            //修复#EXT-X-KEY与#EXTINF出现次序异常问题
-            var regex = OrderFixRegex();
-            if (regex.IsMatch(m3u8Content))
-            {
-                m3u8Content = regex.Replace(m3u8Content, "$3$2$1");
-            }
-
-            return m3u8Content;
+            m3u8Content = m3u8Content.Replace("\r", Environment.NewLine);
         }
+
+        var m3u8Url = parserConfig.Url;
+        // YSP回放
+        if (m3u8Url.Contains("tlivecloud-playback-cdn.ysp.cctv.cn") && m3u8Url.Contains("endtime="))
+        {
+            m3u8Content += Environment.NewLine + HLSTags.ext_x_endlist;
+        }
+
+        // IMOOC
+        if (m3u8Url.Contains("imooc.com/"))
+        {
+            // M3u8Content = DecodeImooc.DecodeM3u8(M3u8Content);
+        }
+
+        // 针对YK #EXT-X-VERSION:7杜比视界片源修正
+        if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("#EXT-X-MAP") && m3u8Content.Contains("ott.cibntv.net") && m3u8Content.Contains("ccode="))
+        {
+            var ykmap = YkDVRegex();
+            foreach (Match m in ykmap.Matches(m3u8Content))
+            {
+                m3u8Content = m3u8Content.Replace(m.Value, $"#EXTINF:0.000000,\n#EXT-X-BYTERANGE:{m.Groups[2].Value}\n{m.Groups[1].Value}");
+            }
+        }
+
+        // 针对Disney+修正
+        if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("#EXT-X-MAP") && m3u8Url.Contains("media.dssott.com/"))
+        {
+            Regex ykmap = DNSPRegex();
+            if (ykmap.IsMatch(m3u8Content))
+            {
+                m3u8Content = m3u8Content.Replace(ykmap.Match(m3u8Content).Value, "#XXX");
+            }
+        }
+
+        // 针对Disney+字幕修正
+        if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("seg_00000.vtt") && m3u8Url.Contains("media.dssott.com/"))
+        {
+            Regex ykmap = DNSPSubRegex();
+            if (ykmap.IsMatch(m3u8Content))
+            {
+                m3u8Content = m3u8Content.Replace(ykmap.Match(m3u8Content).Value, "#XXX");
+            }
+        }
+
+        // 针对AppleTv修正
+        if (m3u8Content.Contains("#EXT-X-DISCONTINUITY") && m3u8Content.Contains("#EXT-X-MAP") && (m3u8Url.Contains(".apple.com/") || ATVRegex().IsMatch(m3u8Content)))
+        {
+            // 只取加密部分即可
+            Regex ykmap = ATVRegex2();
+            if (ykmap.IsMatch(m3u8Content))
+            {
+                m3u8Content = "#EXTM3U\r\n" + ykmap.Match(m3u8Content).Groups[1].Value + "\r\n#EXT-X-ENDLIST";
+            }
+        }
+
+        // 修复#EXT-X-KEY与#EXTINF出现次序异常问题
+        var regex = OrderFixRegex();
+        if (regex.IsMatch(m3u8Content))
+        {
+            m3u8Content = regex.Replace(m3u8Content, "$3$2$1");
+        }
+
+        return m3u8Content;
     }
 }

src/N_m3u8DL-RE.Parser/Processor/HLS/DefaultHLSKeyProcessor.cs

@@ -6,112 +6,105 @@ using N_m3u8DL_RE.Common.Util;
 using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Parser.Util;
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Processor.HLS
+namespace N_m3u8DL_RE.Parser.Processor.HLS;
+
+public class DefaultHLSKeyProcessor : KeyProcessor
 {
-    public class DefaultHLSKeyProcessor : KeyProcessor
+    public override bool CanProcess(ExtractorType extractorType, string m3u8Url, string keyLine, string m3u8Content, ParserConfig paserConfig) => extractorType == ExtractorType.HLS;
+
+
+    public override EncryptInfo Process(string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig)
     {
-        public override bool CanProcess(ExtractorType extractorType, string m3u8Url, string keyLine, string m3u8Content, ParserConfig paserConfig) => extractorType == ExtractorType.HLS;
+        var iv = ParserUtil.GetAttribute(keyLine, "IV");
+        var method = ParserUtil.GetAttribute(keyLine, "METHOD");
+        var uri = ParserUtil.GetAttribute(keyLine, "URI");
 
+        Logger.Debug("METHOD:{},URI:{},IV:{}", method, uri, iv);
 
-        public override EncryptInfo Process(string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig)
+        var encryptInfo = new EncryptInfo(method);
+
+        // IV
+        if (!string.IsNullOrEmpty(iv))
         {
-            var iv = ParserUtil.GetAttribute(keyLine, "IV");
-            var method = ParserUtil.GetAttribute(keyLine, "METHOD");
-            var uri = ParserUtil.GetAttribute(keyLine, "URI");
+            encryptInfo.IV = HexUtil.HexToBytes(iv);
+        }
+        // 自定义IV
+        if (parserConfig.CustomeIV is { Length: > 0 }) 
+        {
+            encryptInfo.IV = parserConfig.CustomeIV;
+        }
 
-            Logger.Debug("METHOD:{},URI:{},IV:{}", method, uri, iv);
-
-            var encryptInfo = new EncryptInfo(method);
-
-            //IV
-            if (!string.IsNullOrEmpty(iv))
+        // KEY
+        try
+        {
+            if (parserConfig.CustomeKey is { Length: > 0 })
             {
-                encryptInfo.IV = HexUtil.HexToBytes(iv);
+                encryptInfo.Key = parserConfig.CustomeKey;
             }
-            //自定义IV
-            if (parserConfig.CustomeIV != null && parserConfig.CustomeIV.Length > 0) 
+            else if (uri.ToLower().StartsWith("base64:"))
             {
-                encryptInfo.IV = parserConfig.CustomeIV;
+                encryptInfo.Key = Convert.FromBase64String(uri[7..]);
             }
-
-            //KEY
-            try
+            else if (uri.ToLower().StartsWith("data:;base64,"))
             {
-                if (parserConfig.CustomeKey != null && parserConfig.CustomeKey.Length > 0)
-                {
-                    encryptInfo.Key = parserConfig.CustomeKey;
-                }
-                else if (uri.ToLower().StartsWith("base64:"))
-                {
-                    encryptInfo.Key = Convert.FromBase64String(uri[7..]);
-                }
-                else if (uri.ToLower().StartsWith("data:;base64,"))
-                {
-                    encryptInfo.Key = Convert.FromBase64String(uri[13..]);
-                }
-                else if (uri.ToLower().StartsWith("data:text/plain;base64,"))
-                {
-                    encryptInfo.Key = Convert.FromBase64String(uri[23..]);
-                }
-                else if (File.Exists(uri))
-                {
-                    encryptInfo.Key = File.ReadAllBytes(uri);
-                }
-                else if (!string.IsNullOrEmpty(uri))
-                {
-                    var retryCount = parserConfig.KeyRetryCount;
-                    var segUrl = PreProcessUrl(ParserUtil.CombineURL(m3u8Url, uri), parserConfig);
+                encryptInfo.Key = Convert.FromBase64String(uri[13..]);
+            }
+            else if (uri.ToLower().StartsWith("data:text/plain;base64,"))
+            {
+                encryptInfo.Key = Convert.FromBase64String(uri[23..]);
+            }
+            else if (File.Exists(uri))
+            {
+                encryptInfo.Key = File.ReadAllBytes(uri);
+            }
+            else if (!string.IsNullOrEmpty(uri))
+            {
+                var retryCount = parserConfig.KeyRetryCount;
+                var segUrl = PreProcessUrl(ParserUtil.CombineURL(m3u8Url, uri), parserConfig);
                 getHttpKey:
-                    try
-                    {
-                        var bytes = HTTPUtil.GetBytesAsync(segUrl, parserConfig.Headers).Result;
-                        encryptInfo.Key = bytes;
-                    }
-                    catch (Exception _ex) when (!_ex.Message.Contains("scheme is not supported."))
-                    {
-                        Logger.WarnMarkUp($"[grey]{_ex.Message.EscapeMarkup()} retryCount: {retryCount}[/]");
-                        Thread.Sleep(1000);
-                        if (retryCount-- > 0) goto getHttpKey;
-                        else throw;
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                Logger.Error(ResString.cmd_loadKeyFailed + ": " + ex.Message);
-                encryptInfo.Method = EncryptMethod.UNKNOWN;
-            }
-
-            //处理自定义加密方式
-            if (parserConfig.CustomMethod != null)
-            {
-                encryptInfo.Method = parserConfig.CustomMethod.Value;
-                Logger.Warn("METHOD changed from {} to {}", method, encryptInfo.Method);
-            }
-
-            return encryptInfo;
-        }
-
-        /// <summary>
-        /// 预处理URL
-        /// </summary>
-        private string PreProcessUrl(string url, ParserConfig parserConfig)
-        {
-            foreach (var p in parserConfig.UrlProcessors)
-            {
-                if (p.CanProcess(ExtractorType.HLS, url, parserConfig))
+                try
                 {
-                    url = p.Process(url, parserConfig);
+                    var bytes = HTTPUtil.GetBytesAsync(segUrl, parserConfig.Headers).Result;
+                    encryptInfo.Key = bytes;
+                }
+                catch (Exception _ex) when (!_ex.Message.Contains("scheme is not supported."))
+                {
+                    Logger.WarnMarkUp($"[grey]{_ex.Message.EscapeMarkup()} retryCount: {retryCount}[/]");
+                    Thread.Sleep(1000);
+                    if (retryCount-- > 0) goto getHttpKey;
+                    throw;
                 }
             }
-
-            return url;
         }
+        catch (Exception ex)
+        {
+            Logger.Error(ResString.cmd_loadKeyFailed + ": " + ex.Message);
+            encryptInfo.Method = EncryptMethod.UNKNOWN;
+        }
+
+        if (parserConfig.CustomMethod == null) return encryptInfo;
+        
+        // 处理自定义加密方式
+        encryptInfo.Method = parserConfig.CustomMethod.Value;
+        Logger.Warn("METHOD changed from {} to {}", method, encryptInfo.Method);
+
+        return encryptInfo;
+    }
+
+    /// <summary>
+    /// 预处理URL
+    /// </summary>
+    private string PreProcessUrl(string url, ParserConfig parserConfig)
+    {
+        foreach (var p in parserConfig.UrlProcessors)
+        {
+            if (p.CanProcess(ExtractorType.HLS, url, parserConfig))
+            {
+                url = p.Process(url, parserConfig);
+            }
+        }
+
+        return url;
     }
 }

src/N_m3u8DL-RE.Parser/Processor/KeyProcessor.cs

@@ -1,17 +1,11 @@
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Parser.Config;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Processor
+namespace N_m3u8DL_RE.Parser.Processor;
+
+public abstract class KeyProcessor
 {
-    public abstract class KeyProcessor
-    {
-        public abstract bool CanProcess(ExtractorType extractorType, string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig);
-        public abstract EncryptInfo Process(string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig);
-    }
+    public abstract bool CanProcess(ExtractorType extractorType, string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig);
+    public abstract EncryptInfo Process(string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig);
 }

src/N_m3u8DL-RE.Parser/Processor/UrlProcessor.cs

@@ -1,16 +1,10 @@
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Parser.Config;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Processor
+namespace N_m3u8DL_RE.Parser.Processor;
+
+public abstract class UrlProcessor
 {
-    public abstract class UrlProcessor
-    {
-        public abstract bool CanProcess(ExtractorType extractorType, string oriUrl, ParserConfig parserConfig);
-        public abstract string Process(string oriUrl, ParserConfig parserConfig);
-    }
+    public abstract bool CanProcess(ExtractorType extractorType, string oriUrl, ParserConfig parserConfig);
+    public abstract string Process(string oriUrl, ParserConfig parserConfig);
 }

src/N_m3u8DL-RE.Parser/StreamExtractor.cs

@@ -1,4 +1,5 @@
-using N_m3u8DL_RE.Parser.Config;
+using System.Diagnostics.CodeAnalysis;
+using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Resource;
@@ -6,144 +7,138 @@ using N_m3u8DL_RE.Parser.Constants;
 using N_m3u8DL_RE.Parser.Extractor;
 using N_m3u8DL_RE.Common.Util;
 using N_m3u8DL_RE.Common.Enum;
-using Spectre.Console;
 
-namespace N_m3u8DL_RE.Parser
+namespace N_m3u8DL_RE.Parser;
+
+public class StreamExtractor
 {
-    public class StreamExtractor
+    public ExtractorType ExtractorType => extractor.ExtractorType;
+    private IExtractor extractor;
+    private ParserConfig parserConfig = new();
+    private string rawText;
+    private static SemaphoreSlim semaphore = new(1, 1);
+
+    public Dictionary<string, string> RawFiles { get; set; } = new(); // 存储（文件名,文件内容）
+
+    public StreamExtractor(ParserConfig parserConfig)
     {
-        public ExtractorType ExtractorType { get => extractor.ExtractorType; }
-        private IExtractor extractor;
-        private ParserConfig parserConfig = new ParserConfig();
-        private string rawText;
-        private static SemaphoreSlim semaphore = new SemaphoreSlim(1, 1);
+        this.parserConfig = parserConfig;
+    }
 
-        public Dictionary<string, string> RawFiles { get; set; } = new(); //存储（文件名,文件内容）
-
-        public StreamExtractor()
+    public async Task LoadSourceFromUrlAsync(string url)
+    {
+        Logger.Info(ResString.loadingUrl + url);
+        if (url.StartsWith("file:"))
         {
+            var uri = new Uri(url);
+            this.rawText = await File.ReadAllTextAsync(uri.LocalPath);
+            parserConfig.OriginalUrl = parserConfig.Url = url;
+        }
+        else if (url.StartsWith("http"))
+        {
+            parserConfig.OriginalUrl = url;
+            (this.rawText, url) = await HTTPUtil.GetWebSourceAndNewUrlAsync(url, parserConfig.Headers);
+            parserConfig.Url = url;
+        }
+        else if (File.Exists(url))
+        {
+            url = Path.GetFullPath(url);
+            this.rawText = await File.ReadAllTextAsync(url);
+            parserConfig.OriginalUrl = parserConfig.Url = new Uri(url).AbsoluteUri;
+        }
+        this.rawText = rawText.Trim();
+        LoadSourceFromText(this.rawText);
+    }
 
+    [MemberNotNull(nameof(this.rawText), nameof(this.extractor))]
+    private void LoadSourceFromText(string rawText)
+    {
+        var rawType = "txt";
+        rawText = rawText.Trim();
+        this.rawText = rawText;
+        if (rawText.StartsWith(HLSTags.ext_m3u))
+        {
+            Logger.InfoMarkUp(ResString.matchHLS);
+            extractor = new HLSExtractor(parserConfig);
+            rawType = "m3u8";
+        }
+        else if (rawText.Contains("</MPD>") && rawText.Contains("<MPD"))
+        {
+            Logger.InfoMarkUp(ResString.matchDASH);
+            // extractor = new DASHExtractor(parserConfig);
+            extractor = new DASHExtractor2(parserConfig);
+            rawType = "mpd";
+        }
+        else if (rawText.Contains("</SmoothStreamingMedia>") && rawText.Contains("<SmoothStreamingMedia"))
+        {
+            Logger.InfoMarkUp(ResString.matchMSS);
+            // extractor = new DASHExtractor(parserConfig);
+            extractor = new MSSExtractor(parserConfig);
+            rawType = "ism";
+        }
+        else if (rawText == ResString.ReLiveTs)
+        {
+            Logger.InfoMarkUp(ResString.matchTS);
+            extractor = new LiveTSExtractor(parserConfig);
+        }
+        else
+        {
+            throw new NotSupportedException(ResString.notSupported);
         }
 
-        public StreamExtractor(ParserConfig parserConfig)
+        RawFiles[$"raw.{rawType}"] = rawText;
+    }
+
+    /// <summary>
+    /// 开始解析流媒体信息
+    /// </summary>
+    /// <returns></returns>
+    public async Task<List<StreamSpec>> ExtractStreamsAsync()
+    {
+        try
         {
-            this.parserConfig = parserConfig;
+            await semaphore.WaitAsync();
+            Logger.Info(ResString.parsingStream);
+            return await extractor.ExtractStreamsAsync(rawText);
         }
-
-        public async Task LoadSourceFromUrlAsync(string url)
+        finally
         {
-            Logger.Info(ResString.loadingUrl + url);
-            if (url.StartsWith("file:"))
-            {
-                var uri = new Uri(url);
-                this.rawText = await File.ReadAllTextAsync(uri.LocalPath);
-                parserConfig.OriginalUrl = parserConfig.Url = url;
-            }
-            else if (url.StartsWith("http"))
-            {
-                parserConfig.OriginalUrl = url;
-                (this.rawText, url) = await HTTPUtil.GetWebSourceAndNewUrlAsync(url, parserConfig.Headers);
-                parserConfig.Url = url;
-            }
-            else if (File.Exists(url))
-            {
-                url = Path.GetFullPath(url);
-                this.rawText = await File.ReadAllTextAsync(url);
-                parserConfig.OriginalUrl = parserConfig.Url = new Uri(url).AbsoluteUri;
-            }
-            this.rawText = rawText.Trim();
-            LoadSourceFromText(this.rawText);
+            semaphore.Release();
         }
+    }
 
-        public void LoadSourceFromText(string rawText)
+    /// <summary>
+    /// 根据规格说明填充媒体播放列表信息
+    /// </summary>
+    /// <param name="streamSpecs"></param>
+    public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
+    {
+        try
         {
-            var rawType = "txt";
-            rawText = rawText.Trim();
-            this.rawText = rawText;
-            if (rawText.StartsWith(HLSTags.ext_m3u))
-            {
-                Logger.InfoMarkUp(ResString.matchHLS);
-                extractor = new HLSExtractor(parserConfig);
-                rawType = "m3u8";
-            }
-            else if (rawText.Contains("</MPD>") && rawText.Contains("<MPD"))
-            {
-                Logger.InfoMarkUp(ResString.matchDASH);
-                //extractor = new DASHExtractor(parserConfig);
-                extractor = new DASHExtractor2(parserConfig);
-                rawType = "mpd";
-            }
-            else if (rawText.Contains("</SmoothStreamingMedia>") && rawText.Contains("<SmoothStreamingMedia"))
-            {
-                Logger.InfoMarkUp(ResString.matchMSS);
-                //extractor = new DASHExtractor(parserConfig);
-                extractor = new MSSExtractor(parserConfig);
-                rawType = "ism";
-            }
-            else if (rawText == ResString.ReLiveTs)
-            {
-                Logger.InfoMarkUp(ResString.matchTS);
-                extractor = new LiveTSExtractor(parserConfig);
-            }
-            else
-            {
-                throw new NotSupportedException(ResString.notSupported);
-            }
-
-            RawFiles[$"raw.{rawType}"] = rawText;
+            await semaphore.WaitAsync();
+            Logger.Info(ResString.parsingStream);
+            await extractor.FetchPlayListAsync(streamSpecs);
         }
-
-        /// <summary>
-        /// 开始解析流媒体信息
-        /// </summary>
-        /// <returns></returns>
-        public async Task<List<StreamSpec>> ExtractStreamsAsync()
+        finally
         {
-            try
-            {
-                await semaphore.WaitAsync();
-                Logger.Info(ResString.parsingStream);
-                return await extractor.ExtractStreamsAsync(rawText);
-            }
-            finally
-            {
-                semaphore.Release();
-            }
+            semaphore.Release();
         }
+    }
 
-        /// <summary>
-        /// 根据规格说明填充媒体播放列表信息
-        /// </summary>
-        /// <param name="streamSpecs"></param>
-        public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
+    public async Task RefreshPlayListAsync(List<StreamSpec> streamSpecs)
+    {
+        try
         {
-            try
+            await semaphore.WaitAsync();
+            await RetryUtil.WebRequestRetryAsync(async () =>
             {
-                await semaphore.WaitAsync();
-                Logger.Info(ResString.parsingStream);
-                await extractor.FetchPlayListAsync(streamSpecs);
-            }
-            finally
-            {
-                semaphore.Release();
-            }
+                await extractor.RefreshPlayListAsync(streamSpecs);
+                return true;
+            }, retryDelayMilliseconds: 1000, maxRetries: 5);
         }
-
-        public async Task RefreshPlayListAsync(List<StreamSpec> streamSpecs)
+        finally
         {
-            try
-            {
-                await semaphore.WaitAsync();
-                await RetryUtil.WebRequestRetryAsync(async () =>
-                {
-                    await extractor.RefreshPlayListAsync(streamSpecs);
-                    return true;
-                }, retryDelayMilliseconds: 1000, maxRetries: 5);
-            }
-            finally
-            {
-                semaphore.Release();
-            }
+            semaphore.Release();
         }
     }
 }

src/N_m3u8DL-RE.Parser/Util/ParserUtil.cs

@@ -1,126 +1,114 @@
 using N_m3u8DL_RE.Parser.Constants;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Parser.Util
+namespace N_m3u8DL_RE.Parser.Util;
+
+public static partial class ParserUtil
 {
-    public partial class ParserUtil
+    [GeneratedRegex(@"\$Number%([^$]+)d\$")]
+    private static partial Regex VarsNumberRegex();
+
+    /// <summary>
+    /// 从以下文本中获取参数
+    /// #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2149280,CODECS="mp4a.40.2,avc1.64001f",RESOLUTION=1280x720,NAME="720"
+    /// </summary>
+    /// <param name="line">等待被解析的一行文本</param>
+    /// <param name="key">留空则获取第一个英文冒号后的全部字符</param>
+    /// <returns></returns>
+    public static string GetAttribute(string line, string key = "")
     {
-        [GeneratedRegex("\\$Number%([^$]+)d\\$")]
-        private static partial Regex VarsNumberRegex();
+        line = line.Trim();
+        if (key == "")
+            return line[(line.IndexOf(':') + 1)..];
 
-        /// <summary>
-        /// 从以下文本中获取参数
-        /// #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2149280,CODECS="mp4a.40.2,avc1.64001f",RESOLUTION=1280x720,NAME="720"
-        /// </summary>
-        /// <param name="line">等待被解析的一行文本</param>
-        /// <param name="key">留空则获取第一个英文冒号后的全部字符</param>
-        /// <returns></returns>
-        public static string GetAttribute(string line, string key = "")
+        var index = -1;
+        var result = string.Empty;
+        if ((index = line.IndexOf(key + "=\"", StringComparison.Ordinal)) > -1)
         {
-            line = line.Trim();
-            if (key == "")
-                return line[(line.IndexOf(':') + 1)..];
-
-            var index = -1;
-            var result = string.Empty;
-            if ((index = line.IndexOf(key + "=\"")) > -1)
-            {
-                var startIndex = index + (key + "=\"").Length;
-                var endIndex = startIndex + line[startIndex..].IndexOf('\"');
-                result = line[startIndex..endIndex];
-            }
-            else if ((index = line.IndexOf(key + "=")) > -1)
-            {
-                var startIndex = index + (key + "=").Length;
-                var endIndex = startIndex + line[startIndex..].IndexOf(',');
-                if (endIndex >= startIndex) result = line[startIndex..endIndex];
-                else result = line[startIndex..];
-            }
-
-            return result;
+            var startIndex = index + (key + "=\"").Length;
+            var endIndex = startIndex + line[startIndex..].IndexOf('\"');
+            result = line[startIndex..endIndex];
+        }
+        else if ((index = line.IndexOf(key + "=", StringComparison.Ordinal)) > -1)
+        {
+            var startIndex = index + (key + "=").Length;
+            var endIndex = startIndex + line[startIndex..].IndexOf(',');
+            result = endIndex >= startIndex ? line[startIndex..endIndex] : line[startIndex..];
         }
 
-        /// <summary>
-        /// 从如下文本中提取
-        /// <n>[@<o>]
-        /// </summary>
-        /// <param name="input"></param>
-        /// <returns>n(length) o(start)</returns>
-        public static (long, long?) GetRange(string input)
+        return result;
+    }
+
+    /// <summary>
+    /// 从如下文本中提取
+    /// <n>[@<o>]
+    /// </summary>
+    /// <param name="input"></param>
+    /// <returns>n(length) o(start)</returns>
+    public static (long, long?) GetRange(string input)
+    {
+        var t = input.Split('@');
+        return t.Length switch
         {
-            var t = input.Split('@');
-            if (t.Length > 0)
+            <= 0 => (0, null),
+            1 => (Convert.ToInt64(t[0]), null),
+            2 => (Convert.ToInt64(t[0]), Convert.ToInt64(t[1])),
+            _ => (0, null)
+        };
+    }
+
+    /// <summary>
+    /// 从100-300这种字符串中获取StartRange, ExpectLength信息
+    /// </summary>
+    /// <param name="range"></param>
+    /// <returns>StartRange, ExpectLength</returns>
+    public static (long, long) ParseRange(string range)
+    {
+        var start = Convert.ToInt64(range.Split('-')[0]);
+        var end = Convert.ToInt64(range.Split('-')[1]);
+        return (start, end - start + 1);
+    }
+
+    /// <summary>
+    /// MPD SegmentTemplate替换
+    /// </summary>
+    /// <param name="text"></param>
+    /// <param name="keyValuePairs"></param>
+    /// <returns></returns>
+    public static string ReplaceVars(string text, Dictionary<string, object?> keyValuePairs)
+    {
+        foreach (var item in keyValuePairs)
+            if (text.Contains(item.Key))
+                text = text.Replace(item.Key, item.Value!.ToString());
+
+        // 处理特殊形式数字 如 $Number%05d$
+        var regex = VarsNumberRegex();
+        if (regex.IsMatch(text) && keyValuePairs.TryGetValue(DASHTags.TemplateNumber, out var keyValuePair)) 
+        {
+            foreach (Match m in regex.Matches(text))
             {
-                if (t.Length == 1)
-                {
-                    return (Convert.ToInt64(t[0]), null);
-                }
-                if (t.Length == 2)
-                {
-                    return (Convert.ToInt64(t[0]), Convert.ToInt64(t[1]));
-                }
+                text = text.Replace(m.Value, keyValuePair?.ToString()?.PadLeft(Convert.ToInt32(m.Groups[1].Value), '0'));
             }
-            return (0, null);
         }
 
-        /// <summary>
-        /// 从100-300这种字符串中获取StartRange, ExpectLength信息
-        /// </summary>
-        /// <param name="range"></param>
-        /// <returns>StartRange, ExpectLength</returns>
-        public static (long, long) ParseRange(string range)
-        {
-            var start = Convert.ToInt64(range.Split('-')[0]);
-            var end = Convert.ToInt64(range.Split('-')[1]);
-            return (start, end - start + 1);
-        }
-
-        /// <summary>
-        /// MPD SegmentTemplate替换
-        /// </summary>
-        /// <param name="text"></param>
-        /// <param name="keyValuePairs"></param>
-        /// <returns></returns>
-        public static string ReplaceVars(string text, Dictionary<string, object?> keyValuePairs)
-        {
-            foreach (var item in keyValuePairs)
-                if (text.Contains(item.Key))
-                    text = text.Replace(item.Key, item.Value!.ToString());
-
-            //处理特殊形式数字 如 $Number%05d$
-            var regex = VarsNumberRegex();
-            if (regex.IsMatch(text) && keyValuePairs.ContainsKey(DASHTags.TemplateNumber)) 
-            {
-                foreach (Match m in regex.Matches(text))
-                {
-                    text = text.Replace(m.Value, keyValuePairs[DASHTags.TemplateNumber]?.ToString()?.PadLeft(Convert.ToInt32(m.Groups[1].Value), '0'));
-                }
-            }
-
-            return text;
-        }
-
-        /// <summary>
-        /// 拼接Baseurl和RelativeUrl
-        /// </summary>
-        /// <param name="baseurl">Baseurl</param>
-        /// <param name="url">RelativeUrl</param>
-        /// <returns></returns>
-        public static string CombineURL(string baseurl, string url)
-        {
-            if (string.IsNullOrEmpty(baseurl))
-                return url;
-
-            Uri uri1 = new Uri(baseurl);  //这里直接传完整的URL即可
-            Uri uri2 = new Uri(uri1, url);
-            url = uri2.ToString();
+        return text;
+    }
 
+    /// <summary>
+    /// 拼接Baseurl和RelativeUrl
+    /// </summary>
+    /// <param name="baseurl">Baseurl</param>
+    /// <param name="url">RelativeUrl</param>
+    /// <returns></returns>
+    public static string CombineURL(string baseurl, string url)
+    {
+        if (string.IsNullOrEmpty(baseurl))
             return url;
-        }
+
+        var uri1 = new Uri(baseurl);  // 这里直接传完整的URL即可
+        var uri2 = new Uri(uri1, url);
+        url = uri2.ToString();
+
+        return url;
     }
 }

src/N_m3u8DL-RE/Column/DownloadSpeedColumn.cs

@@ -1,66 +1,48 @@
-using N_m3u8DL_RE.Common.Log;
-using N_m3u8DL_RE.Entity;
+using N_m3u8DL_RE.Entity;
 using Spectre.Console;
 using Spectre.Console.Rendering;
-using System;
 using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using N_m3u8DL_RE.Common.Util;
 
-namespace N_m3u8DL_RE.Column
+namespace N_m3u8DL_RE.Column;
+
+internal sealed class DownloadSpeedColumn : ProgressColumn
 {
-    internal sealed class DownloadSpeedColumn : ProgressColumn
+    private long _stopSpeed = 0;
+    private ConcurrentDictionary<int, string> DateTimeStringDic = new();
+    protected override bool NoWrap => true;
+    private ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic { get; set; }
+
+    public DownloadSpeedColumn(ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic)
     {
-        private long _stopSpeed = 0;
-        private ConcurrentDictionary<int, string> DateTimeStringDic = new();
-        protected override bool NoWrap => true;
-        private ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic { get; set; }
+        this.SpeedContainerDic = SpeedContainerDic;
+    }
 
-        public DownloadSpeedColumn(ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic)
+    public Style MyStyle { get; set; } = new Style(foreground: Color.Green);
+
+    public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
+    {
+        var taskId = task.Id;
+        var speedContainer = SpeedContainerDic[taskId];
+        var now = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+        var flag = task.IsFinished || !task.IsStarted;
+        // 单文件下载汇报进度
+        if (!flag && speedContainer is { SingleSegment: true, ResponseLength: not null })
         {
-            this.SpeedContainerDic = SpeedContainerDic;
+            task.MaxValue = (double)speedContainer.ResponseLength;
+            task.Value = speedContainer.RDownloaded;
         }
-
-        public Style MyStyle { get; set; } = new Style(foreground: Color.Green);
-
-        public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
+        // 一秒汇报一次即可
+        if (DateTimeStringDic.TryGetValue(taskId, out var oldTime) && oldTime != now && !flag)
         {
-            var taskId = task.Id;
-            var speedContainer = SpeedContainerDic[taskId];
-            var now = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
-            var flag = task.IsFinished || !task.IsStarted;
-            //单文件下载汇报进度
-            if (!flag && speedContainer.SingleSegment && speedContainer.ResponseLength != null)
-            {
-                task.MaxValue = (double)speedContainer.ResponseLength;
-                task.Value = speedContainer.RDownloaded;
-            }
-            //一秒汇报一次即可
-            if (DateTimeStringDic.TryGetValue(taskId, out var oldTime) && oldTime != now && !flag)
-            {
-                speedContainer.NowSpeed = speedContainer.Downloaded;
-                //速度为0，计数增加
-                if (speedContainer.Downloaded <= _stopSpeed) { speedContainer.AddLowSpeedCount(); }
-                else speedContainer.ResetLowSpeedCount();
-                speedContainer.Reset();
-            }
-            DateTimeStringDic[taskId] = now;
-            var style = flag ? Style.Plain : MyStyle;
-            return flag ? new Text("-", style).Centered() : new Text(FormatFileSize(speedContainer.NowSpeed) + (speedContainer.LowSpeedCount > 0 ? $"({speedContainer.LowSpeedCount})" : ""), style).Centered();
-        }
-
-        private static string FormatFileSize(double fileSize)
-        {
-            return fileSize switch
-            {
-                < 0 => throw new ArgumentOutOfRangeException(nameof(fileSize)),
-                >= 1024 * 1024 * 1024 => string.Format("{0:########0.00}GBps", (double)fileSize / (1024 * 1024 * 1024)),
-                >= 1024 * 1024 => string.Format("{0:####0.00}MBps", (double)fileSize / (1024 * 1024)),
-                >= 1024 => string.Format("{0:####0.00}KBps", (double)fileSize / 1024),
-                _ => string.Format("{0:####0.00}Bps", fileSize)
-            };
+            speedContainer.NowSpeed = speedContainer.Downloaded;
+            // 速度为0，计数增加
+            if (speedContainer.Downloaded <= _stopSpeed) { speedContainer.AddLowSpeedCount(); }
+            else speedContainer.ResetLowSpeedCount();
+            speedContainer.Reset();
         }
+        DateTimeStringDic[taskId] = now;
+        var style = flag ? Style.Plain : MyStyle;
+        return flag ? new Text("-", style).Centered() : new Text(GlobalUtil.FormatFileSize(speedContainer.NowSpeed) + "ps" + (speedContainer.LowSpeedCount > 0 ? $"({speedContainer.LowSpeedCount})" : ""), style).Centered();
     }
 }

src/N_m3u8DL-RE/Column/DownloadStatusColumn.cs

@@ -2,48 +2,42 @@
 using N_m3u8DL_RE.Entity;
 using Spectre.Console;
 using Spectre.Console.Rendering;
-using System;
 using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Column
+namespace N_m3u8DL_RE.Column;
+
+internal class DownloadStatusColumn : ProgressColumn
 {
-    internal class DownloadStatusColumn : ProgressColumn
+    private ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic { get; set; }
+    private ConcurrentDictionary<int, string> DateTimeStringDic = new();
+    private ConcurrentDictionary<int, string> SizeDic = new();
+    public Style MyStyle { get; set; } = new Style(foreground: Color.DarkCyan);
+    public Style FinishedStyle { get; set; } = new Style(foreground: Color.Green);
+
+    public DownloadStatusColumn(ConcurrentDictionary<int, SpeedContainer> speedContainerDic)
     {
-        private ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic { get; set; }
-        private ConcurrentDictionary<int, string> DateTimeStringDic = new();
-        private ConcurrentDictionary<int, string> SizeDic = new();
-        public Style MyStyle { get; set; } = new Style(foreground: Color.DarkCyan);
-        public Style FinishedStyle { get; set; } = new Style(foreground: Color.Green);
+        this.SpeedContainerDic = speedContainerDic;
+    }
 
-        public DownloadStatusColumn(ConcurrentDictionary<int, SpeedContainer> speedContainerDic)
+    public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
+    {
+        if (task.Value == 0) return new Text("-", MyStyle).RightJustified();
+        var now = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+
+        var speedContainer = SpeedContainerDic[task.Id];
+        var size = speedContainer.RDownloaded;
+
+        // 一秒汇报一次即可
+        if (DateTimeStringDic.TryGetValue(task.Id, out var oldTime) && oldTime != now)
         {
-            this.SpeedContainerDic = speedContainerDic;
+            var totalSize = speedContainer.SingleSegment ? (speedContainer.ResponseLength ?? 0) : (long)(size / (task.Value / task.MaxValue));
+            SizeDic[task.Id] = $"{GlobalUtil.FormatFileSize(size)}/{GlobalUtil.FormatFileSize(totalSize)}";
         }
+        DateTimeStringDic[task.Id] = now;
+        SizeDic.TryGetValue(task.Id, out var sizeStr);
 
-        public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
-        {
-            if (task.Value == 0) return new Text("-", MyStyle).RightJustified();
-            var now = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+        if (task.IsFinished) sizeStr = GlobalUtil.FormatFileSize(size);
 
-            var speedContainer = SpeedContainerDic[task.Id];
-            var size = speedContainer.RDownloaded;
-
-            //一秒汇报一次即可
-            if (DateTimeStringDic.TryGetValue(task.Id, out var oldTime) && oldTime != now)
-            {
-                var totalSize = speedContainer.SingleSegment ? (speedContainer.ResponseLength ?? 0) : (long)(size / (task.Value / task.MaxValue));
-                SizeDic[task.Id] = $"{GlobalUtil.FormatFileSize(size)}/{GlobalUtil.FormatFileSize(totalSize)}";
-            }
-            DateTimeStringDic[task.Id] = now;
-            SizeDic.TryGetValue(task.Id, out var sizeStr);
-
-            if (task.IsFinished) sizeStr = GlobalUtil.FormatFileSize(size);
-
-            return new Text(sizeStr ?? "-", MyStyle).RightJustified();
-        }
+        return new Text(sizeStr ?? "-", MyStyle).RightJustified();
     }
 }

src/N_m3u8DL-RE/Column/MyPercentageColumn.cs

@@ -1,31 +1,25 @@
 using Spectre.Console.Rendering;
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Column
+namespace N_m3u8DL_RE.Column;
+
+internal class MyPercentageColumn : ProgressColumn
 {
-    internal class MyPercentageColumn : ProgressColumn
+    /// <summary>
+    /// Gets or sets the style for a non-complete task.
+    /// </summary>
+    public Style Style { get; set; } = Style.Plain;
+
+    /// <summary>
+    /// Gets or sets the style for a completed task.
+    /// </summary>
+    public Style CompletedStyle { get; set; } = new Style(foreground: Color.Green);
+
+    /// <inheritdoc/>
+    public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
     {
-        /// <summary>
-        /// Gets or sets the style for a non-complete task.
-        /// </summary>
-        public Style Style { get; set; } = Style.Plain;
-
-        /// <summary>
-        /// Gets or sets the style for a completed task.
-        /// </summary>
-        public Style CompletedStyle { get; set; } = new Style(foreground: Color.Green);
-
-        /// <inheritdoc/>
-        public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
-        {
-            var percentage = task.Percentage;
-            var style = percentage == 100 ? CompletedStyle : Style ?? Style.Plain;
-            return new Text($"{task.Value}/{task.MaxValue} {percentage:F2}%", style).RightJustified();
-        }
+        var percentage = task.Percentage;
+        var style = percentage == 100 ? CompletedStyle : Style ?? Style.Plain;
+        return new Text($"{task.Value}/{task.MaxValue} {percentage:F2}%", style).RightJustified();
     }
 }

src/N_m3u8DL-RE/Column/RecordingDurationColumn.cs

@@ -1,39 +1,30 @@
 using N_m3u8DL_RE.Common.Util;
 using Spectre.Console;
 using Spectre.Console.Rendering;
-using System;
 using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Column
+namespace N_m3u8DL_RE.Column;
+
+internal class RecordingDurationColumn : ProgressColumn
 {
-    internal class RecordingDurationColumn : ProgressColumn
+    protected override bool NoWrap => true;
+    private ConcurrentDictionary<int, int> _recodingDurDic;
+    private ConcurrentDictionary<int, int>? _refreshedDurDic;
+    public Style GreyStyle { get; set; } = new Style(foreground: Color.Grey);
+    public Style MyStyle { get; set; } = new Style(foreground: Color.DarkGreen);
+    public RecordingDurationColumn(ConcurrentDictionary<int, int> recodingDurDic)
     {
-        protected override bool NoWrap => true;
-        private ConcurrentDictionary<int, int> _recodingDurDic;
-        private ConcurrentDictionary<int, int>? _refreshedDurDic;
-        public Style GreyStyle { get; set; } = new Style(foreground: Color.Grey);
-        public Style MyStyle { get; set; } = new Style(foreground: Color.DarkGreen);
-        public RecordingDurationColumn(ConcurrentDictionary<int, int> recodingDurDic)
-        {
-            _recodingDurDic = recodingDurDic;
-        }
-        public RecordingDurationColumn(ConcurrentDictionary<int, int> recodingDurDic, ConcurrentDictionary<int, int> refreshedDurDic)
-        {
-            _recodingDurDic = recodingDurDic;
-            _refreshedDurDic = refreshedDurDic;
-        }
-        public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
-        {
-            if (_refreshedDurDic == null)
-                return new Text($"{GlobalUtil.FormatTime(_recodingDurDic[task.Id])}", MyStyle).LeftJustified();
-            else
-            {                
-                return new Text($"{GlobalUtil.FormatTime(_recodingDurDic[task.Id])}/{GlobalUtil.FormatTime(_refreshedDurDic[task.Id])}", GreyStyle);
-            }
-        }
+        _recodingDurDic = recodingDurDic;
+    }
+    public RecordingDurationColumn(ConcurrentDictionary<int, int> recodingDurDic, ConcurrentDictionary<int, int> refreshedDurDic)
+    {
+        _recodingDurDic = recodingDurDic;
+        _refreshedDurDic = refreshedDurDic;
+    }
+    public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
+    {
+        if (_refreshedDurDic == null)
+            return new Text($"{GlobalUtil.FormatTime(_recodingDurDic[task.Id])}", MyStyle).LeftJustified();
+        return new Text($"{GlobalUtil.FormatTime(_recodingDurDic[task.Id])}/{GlobalUtil.FormatTime(_refreshedDurDic[task.Id])}", GreyStyle);
     }
 }

src/N_m3u8DL-RE/Column/RecordingSizeColumn.cs

@@ -1,39 +1,32 @@
 using N_m3u8DL_RE.Common.Util;
-using N_m3u8DL_RE.Entity;
 using Spectre.Console;
 using Spectre.Console.Rendering;
-using System;
 using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Column
+namespace N_m3u8DL_RE.Column;
+
+internal class RecordingSizeColumn : ProgressColumn
 {
-    internal class RecordingSizeColumn : ProgressColumn
+    protected override bool NoWrap => true;
+    private ConcurrentDictionary<int, double> RecodingSizeDic = new(); // 临时的大小 每秒刷新用
+    private ConcurrentDictionary<int, double> _recodingSizeDic;
+    private ConcurrentDictionary<int, string> DateTimeStringDic = new();
+    public Style MyStyle { get; set; } = new Style(foreground: Color.DarkCyan);
+    public RecordingSizeColumn(ConcurrentDictionary<int, double> recodingSizeDic)
     {
-        protected override bool NoWrap => true;
-        private ConcurrentDictionary<int, double> RecodingSizeDic = new(); //临时的大小 每秒刷新用
-        private ConcurrentDictionary<int, double> _recodingSizeDic;
-        private ConcurrentDictionary<int, string> DateTimeStringDic = new();
-        public Style MyStyle { get; set; } = new Style(foreground: Color.DarkCyan);
-        public RecordingSizeColumn(ConcurrentDictionary<int, double> recodingSizeDic)
+        _recodingSizeDic = recodingSizeDic;
+    }
+    public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
+    {
+        var now = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+        var taskId = task.Id;
+        // 一秒汇报一次即可
+        if (DateTimeStringDic.TryGetValue(taskId, out var oldTime) && oldTime != now)
         {
-            _recodingSizeDic = recodingSizeDic;
-        }
-        public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
-        {
-            var now = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
-            var taskId = task.Id;
-            //一秒汇报一次即可
-            if (DateTimeStringDic.TryGetValue(taskId, out var oldTime) && oldTime != now)
-            {
-                RecodingSizeDic[task.Id] = _recodingSizeDic[task.Id];
-            }
-            DateTimeStringDic[taskId] = now;
-            var flag = RecodingSizeDic.TryGetValue(taskId, out var size);
-            return new Text(GlobalUtil.FormatFileSize(flag ? size : 0), MyStyle).LeftJustified();
+            RecodingSizeDic[task.Id] = _recodingSizeDic[task.Id];
         }
+        DateTimeStringDic[taskId] = now;
+        var flag = RecodingSizeDic.TryGetValue(taskId, out var size);
+        return new Text(GlobalUtil.FormatFileSize(flag ? size : 0), MyStyle).LeftJustified();
     }
 }

src/N_m3u8DL-RE/Column/RecordingStatusColumn.cs

@@ -1,23 +1,17 @@
 using Spectre.Console;
 using Spectre.Console.Rendering;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Column
+namespace N_m3u8DL_RE.Column;
+
+internal class RecordingStatusColumn : ProgressColumn
 {
-    internal class RecordingStatusColumn : ProgressColumn
+    protected override bool NoWrap => true;
+    public Style MyStyle { get; set; } = new Style(foreground: Color.Default);
+    public Style FinishedStyle { get; set; } = new Style(foreground: Color.Yellow);
+    public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
     {
-        protected override bool NoWrap => true;
-        public Style MyStyle { get; set; } = new Style(foreground: Color.Default);
-        public Style FinishedStyle { get; set; } = new Style(foreground: Color.Yellow);
-        public override IRenderable Render(RenderOptions options, ProgressTask task, TimeSpan deltaTime)
-        {
-            if (task.IsFinished)
-                return new Text($"{task.Value}/{task.MaxValue} Waiting  ", FinishedStyle).LeftJustified();
-            return new Text($"{task.Value}/{task.MaxValue} Recording", MyStyle).LeftJustified();
-        }
+        if (task.IsFinished)
+            return new Text($"{task.Value}/{task.MaxValue} Waiting  ", FinishedStyle).LeftJustified();
+        return new Text($"{task.Value}/{task.MaxValue} Recording", MyStyle).LeftJustified();
     }
 }

src/N_m3u8DL-RE/CommandLine/ComplexParamParser.cs

@@ -1,61 +1,56 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.Text;
 
-namespace N_m3u8DL_RE.CommandLine
+namespace N_m3u8DL_RE.CommandLine;
+
+internal class ComplexParamParser
 {
-    internal class ComplexParamParser
+    private readonly string _arg;
+    public ComplexParamParser(string arg)
     {
-        private string _arg;
-        public ComplexParamParser(string arg)
-        {
-            _arg = arg;
-        }
+        _arg = arg;
+    }
 
-        public string? GetValue(string key)
-        {
-            if (string.IsNullOrEmpty(key) || string.IsNullOrEmpty(_arg)) return null;
+    public string? GetValue(string key)
+    {
+        if (string.IsNullOrEmpty(key) || string.IsNullOrEmpty(_arg)) return null;
 
-            try
+        try
+        {
+            var index = _arg.IndexOf(key + "=", StringComparison.Ordinal);
+            if (index == -1) return (_arg.Contains(key) && _arg.EndsWith(key)) ? "true" : null;
+
+            var chars = _arg[(index + key.Length + 1)..].ToCharArray();
+            var result = new StringBuilder();
+            char last = '\0';
+            for (int i = 0; i < chars.Length; i++)
             {
-                var index = _arg.IndexOf(key + "=");
-                if (index == -1) return (_arg.Contains(key) && _arg.EndsWith(key)) ? "true" : null;
-
-                var chars = _arg[(index + key.Length + 1)..].ToCharArray();
-                var result = new StringBuilder();
-                char last = '\0';
-                for (int i = 0; i < chars.Length; i++)
+                if (chars[i] == ':')
                 {
-                    if (chars[i] == ':')
-                    {
-                        if (last == '\\')
-                        {
-                            result.Replace("\\", "");
-                            last = chars[i];
-                            result.Append(chars[i]);
-                        }
-                        else break;
-                    }
-                    else
+                    if (last == '\\')
                     {
+                        result.Replace("\\", "");
                         last = chars[i];
                         result.Append(chars[i]);
                     }
+                    else break;
+                }
+                else
+                {
+                    last = chars[i];
+                    result.Append(chars[i]);
                 }
-
-                var resultStr = result.ToString().Trim().Trim('\"').Trim('\'');
-
-                //不应该有引号出现
-                if (resultStr.Contains('\"') || resultStr.Contains('\'')) throw new Exception();
-
-                return resultStr;
-            }
-            catch (Exception)
-            {
-                throw new ArgumentException($"Parse Argument [{key}] failed!");
             }
+
+            var resultStr = result.ToString().Trim().Trim('\"').Trim('\'');
+
+            // 不应该有引号出现
+            if (resultStr.Contains('\"') || resultStr.Contains('\'')) throw new Exception();
+
+            return resultStr;
+        }
+        catch (Exception)
+        {
+            throw new ArgumentException($"Parse Argument [{key}] failed!");
         }
     }
 }

src/N_m3u8DL-RE/CommandLine/MyOption.cs

@@ -4,255 +4,271 @@ using N_m3u8DL_RE.Entity;
 using N_m3u8DL_RE.Enum;
 using System.Net;
 
-namespace N_m3u8DL_RE.CommandLine
+namespace N_m3u8DL_RE.CommandLine;
+
+internal class MyOption
 {
-    internal class MyOption
-    {
-        /// <summary>
-        /// See: <see cref="CommandInvoker.Input"/>.
-        /// </summary>
-        public string Input { get; set; } = default!;
-        /// <summary>
-        /// See: <see cref="CommandInvoker.Headers"/>.
-        /// </summary>
-        public Dictionary<string, string> Headers { get; set; } = new Dictionary<string, string>();
-        /// <summary>
-        /// See: <see cref="CommandInvoker.AdKeywords"/>.
-        /// </summary>
-        public string[]? AdKeywords { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.MaxSpeed"/>.
-        /// </summary>
-        public long? MaxSpeed { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.Keys"/>.
-        /// </summary>
-        public string[]? Keys { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.BaseUrl"/>.
-        /// </summary>
-        public string? BaseUrl { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.KeyTextFile"/>.
-        /// </summary>
-        public string? KeyTextFile { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.UrlProcessorArgs"/>.
-        /// </summary>
-        public string? UrlProcessorArgs { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LogLevel"/>.
-        /// </summary>
-        public LogLevel LogLevel { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.NoDateInfo"/>.
-        /// </summary>
-        public bool NoDateInfo { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.NoLog"/>.
-        /// </summary>
-        public bool NoLog { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.AutoSelect"/>.
-        /// </summary>
-        public bool AutoSelect { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SubOnly"/>.
-        /// </summary>
-        public bool SubOnly { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.ThreadCount"/>.
-        /// </summary>
-        public int ThreadCount { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.DownloadRetryCount"/>.
-        /// </summary>
-        public int DownloadRetryCount { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LiveRecordLimit"/>.
-        /// </summary>
-        public TimeSpan? LiveRecordLimit { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.TaskStartAt"/>.
-        /// </summary>
-        public DateTime? TaskStartAt { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SkipMerge"/>.
-        /// </summary>
-        public bool SkipMerge { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.BinaryMerge"/>.
-        /// </summary>
-        public bool BinaryMerge { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.ForceAnsiConsole"/>.
-        /// </summary>
-        public bool ForceAnsiConsole { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.NoAnsiColor"/>.
-        /// </summary>
-        public bool NoAnsiColor { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.UseFFmpegConcatDemuxer"/>.
-        /// </summary>
-        public bool UseFFmpegConcatDemuxer { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.DelAfterDone"/>.
-        /// </summary>
-        public bool DelAfterDone { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.AutoSubtitleFix"/>.
-        /// </summary>
-        public bool AutoSubtitleFix { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.CheckSegmentsCount"/>.
-        /// </summary>
-        public bool CheckSegmentsCount { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SkipDownload"/>.
-        /// </summary>
-        public bool SkipDownload { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.WriteMetaJson"/>.
-        /// </summary>
-        public bool WriteMetaJson { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.AppendUrlParams"/>.
-        /// </summary>
-        public bool AppendUrlParams { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.MP4RealTimeDecryption"/>.
-        /// </summary>
-        public bool MP4RealTimeDecryption { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.UseShakaPackager"/>.
-        /// </summary>
-        public bool UseShakaPackager { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.MuxAfterDone"/>.
-        /// </summary>
-        public bool MuxAfterDone { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.ConcurrentDownload"/>.
-        /// </summary>
-        public bool ConcurrentDownload { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LiveRealTimeMerge"/>.
-        /// </summary>
-        public bool LiveRealTimeMerge { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LiveKeepSegments"/>.
-        /// </summary>
-        public bool LiveKeepSegments { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LivePerformAsVod"/>.
-        /// </summary>
-        public bool LivePerformAsVod { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.UseSystemProxy"/>.
-        /// </summary>
-        public bool UseSystemProxy { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SubtitleFormat"/>.
-        /// </summary>
-        public SubtitleFormat SubtitleFormat { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.TmpDir"/>.
-        /// </summary>
-        public string? TmpDir { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SaveDir"/>.
-        /// </summary>
-        public string? SaveDir { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SaveName"/>.
-        /// </summary>
-        public string? SaveName { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SavePattern"/>.
-        /// </summary>
-        public string? SavePattern { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.UILanguage"/>.
-        /// </summary>
-        public string? UILanguage { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.DecryptionBinaryPath"/>.
-        /// </summary>
-        public string? DecryptionBinaryPath { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.FFmpegBinaryPath"/>.
-        /// </summary>
-        public string? FFmpegBinaryPath { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.MkvmergeBinaryPath"/>.
-        /// </summary>
-        public string? MkvmergeBinaryPath { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.MuxImports"/>.
-        /// </summary>
-        public List<OutputFile>? MuxImports { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.VideoFilter"/>.
-        /// </summary>
-        public StreamFilter? VideoFilter { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.DropVideoFilter"/>.
-        /// </summary>
-        public StreamFilter? DropVideoFilter { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.AudioFilter"/>.
-        /// </summary>
-        public StreamFilter? AudioFilter { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.DropAudioFilter"/>.
-        /// </summary>
-        public StreamFilter? DropAudioFilter { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.SubtitleFilter"/>.
-        /// </summary>
-        public StreamFilter? SubtitleFilter { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.DropSubtitleFilter"/>.
-        /// </summary>
-        public StreamFilter? DropSubtitleFilter { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.CustomHLSMethod"/>.
-        /// </summary>
-        public EncryptMethod? CustomHLSMethod { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.CustomHLSKey"/>.
-        /// </summary>
-        public byte[]? CustomHLSKey { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.CustomHLSIv"/>.
-        /// </summary>
-        public byte[]? CustomHLSIv { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.CustomProxy"/>.
-        /// </summary>
-        public WebProxy? CustomProxy { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.CustomRange"/>.
-        /// </summary>
-        public CustomRange? CustomRange { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LiveWaitTime"/>.
-        /// </summary>
-        public int? LiveWaitTime { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LiveTakeCount"/>.
-        /// </summary>
-        public int LiveTakeCount { get; set; }
-        public MuxOptions MuxOptions { get; set; }
-        //public bool LiveWriteHLS { get; set; } = true;
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LivePipeMux"/>.
-        /// </summary>
-        public bool LivePipeMux { get; set; }
-        /// <summary>
-        /// See: <see cref="CommandInvoker.LiveFixVttByAudio"/>.
-        /// </summary>
-        public bool LiveFixVttByAudio { get; set; }
-    }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.Input"/>.
+    /// </summary>
+    public string Input { get; set; } = default!;
+    /// <summary>
+    /// See: <see cref="CommandInvoker.Headers"/>.
+    /// </summary>
+    public Dictionary<string, string> Headers { get; set; } = new Dictionary<string, string>();
+    /// <summary>
+    /// See: <see cref="CommandInvoker.AdKeywords"/>.
+    /// </summary>
+    public string[]? AdKeywords { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.MaxSpeed"/>.
+    /// </summary>
+    public long? MaxSpeed { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.Keys"/>.
+    /// </summary>
+    public string[]? Keys { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.BaseUrl"/>.
+    /// </summary>
+    public string? BaseUrl { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.KeyTextFile"/>.
+    /// </summary>
+    public string? KeyTextFile { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.UrlProcessorArgs"/>.
+    /// </summary>
+    public string? UrlProcessorArgs { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LogLevel"/>.
+    /// </summary>
+    public LogLevel LogLevel { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.NoDateInfo"/>.
+    /// </summary>
+    public bool NoDateInfo { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.NoLog"/>.
+    /// </summary>
+    public bool NoLog { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.AllowHlsMultiExtMap"/>.
+    /// </summary>
+    public bool AllowHlsMultiExtMap { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.AutoSelect"/>.
+    /// </summary>
+    public bool AutoSelect { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DisableUpdateCheck"/>.
+    /// </summary>
+    public bool DisableUpdateCheck { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SubOnly"/>.
+    /// </summary>
+    public bool SubOnly { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.ThreadCount"/>.
+    /// </summary>
+    public int ThreadCount { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DownloadRetryCount"/>.
+    /// </summary>
+    public int DownloadRetryCount { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.HttpRequestTimeout"/>.
+    /// </summary>
+    public double HttpRequestTimeout { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LiveRecordLimit"/>.
+    /// </summary>
+    public TimeSpan? LiveRecordLimit { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.TaskStartAt"/>.
+    /// </summary>
+    public DateTime? TaskStartAt { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SkipMerge"/>.
+    /// </summary>
+    public bool SkipMerge { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.BinaryMerge"/>.
+    /// </summary>
+    public bool BinaryMerge { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.ForceAnsiConsole"/>.
+    /// </summary>
+    public bool ForceAnsiConsole { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.NoAnsiColor"/>.
+    /// </summary>
+    public bool NoAnsiColor { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.UseFFmpegConcatDemuxer"/>.
+    /// </summary>
+    public bool UseFFmpegConcatDemuxer { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DelAfterDone"/>.
+    /// </summary>
+    public bool DelAfterDone { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.AutoSubtitleFix"/>.
+    /// </summary>
+    public bool AutoSubtitleFix { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.CheckSegmentsCount"/>.
+    /// </summary>
+    public bool CheckSegmentsCount { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SkipDownload"/>.
+    /// </summary>
+    public bool SkipDownload { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.WriteMetaJson"/>.
+    /// </summary>
+    public bool WriteMetaJson { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.AppendUrlParams"/>.
+    /// </summary>
+    public bool AppendUrlParams { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.MP4RealTimeDecryption"/>.
+    /// </summary>
+    public bool MP4RealTimeDecryption { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.UseShakaPackager"/>.
+    /// </summary>
+    [Obsolete("Use DecryptionEngine instead")]
+    public bool UseShakaPackager { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DecryptionEngine"/>.
+    /// </summary>
+    public DecryptEngine DecryptionEngine { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.MuxAfterDone"/>.
+    /// </summary>
+    public bool MuxAfterDone { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.ConcurrentDownload"/>.
+    /// </summary>
+    public bool ConcurrentDownload { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LiveRealTimeMerge"/>.
+    /// </summary>
+    public bool LiveRealTimeMerge { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LiveKeepSegments"/>.
+    /// </summary>
+    public bool LiveKeepSegments { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LivePerformAsVod"/>.
+    /// </summary>
+    public bool LivePerformAsVod { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.UseSystemProxy"/>.
+    /// </summary>
+    public bool UseSystemProxy { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SubtitleFormat"/>.
+    /// </summary>
+    public SubtitleFormat SubtitleFormat { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.TmpDir"/>.
+    /// </summary>
+    public string? TmpDir { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SaveDir"/>.
+    /// </summary>
+    public string? SaveDir { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SaveName"/>.
+    /// </summary>
+    public string? SaveName { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SavePattern"/>.
+    /// </summary>
+    public string? SavePattern { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.UILanguage"/>.
+    /// </summary>
+    public string? UILanguage { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DecryptionBinaryPath"/>.
+    /// </summary>
+    public string? DecryptionBinaryPath { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.FFmpegBinaryPath"/>.
+    /// </summary>
+    public string? FFmpegBinaryPath { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.MkvmergeBinaryPath"/>.
+    /// </summary>
+    public string? MkvmergeBinaryPath { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.MuxImports"/>.
+    /// </summary>
+    public List<OutputFile>? MuxImports { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.VideoFilter"/>.
+    /// </summary>
+    public StreamFilter? VideoFilter { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DropVideoFilter"/>.
+    /// </summary>
+    public StreamFilter? DropVideoFilter { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.AudioFilter"/>.
+    /// </summary>
+    public StreamFilter? AudioFilter { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DropAudioFilter"/>.
+    /// </summary>
+    public StreamFilter? DropAudioFilter { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.SubtitleFilter"/>.
+    /// </summary>
+    public StreamFilter? SubtitleFilter { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.DropSubtitleFilter"/>.
+    /// </summary>
+    public StreamFilter? DropSubtitleFilter { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.CustomHLSMethod"/>.
+    /// </summary>
+    public EncryptMethod? CustomHLSMethod { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.CustomHLSKey"/>.
+    /// </summary>
+    public byte[]? CustomHLSKey { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.CustomHLSIv"/>.
+    /// </summary>
+    public byte[]? CustomHLSIv { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.CustomProxy"/>.
+    /// </summary>
+    public WebProxy? CustomProxy { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.CustomRange"/>.
+    /// </summary>
+    public CustomRange? CustomRange { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LiveWaitTime"/>.
+    /// </summary>
+    public int? LiveWaitTime { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LiveTakeCount"/>.
+    /// </summary>
+    public int LiveTakeCount { get; set; }
+    public MuxOptions? MuxOptions { get; set; }
+    // public bool LiveWriteHLS { get; set; } = true;
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LivePipeMux"/>.
+    /// </summary>
+    public bool LivePipeMux { get; set; }
+    /// <summary>
+    /// See: <see cref="CommandInvoker.LiveFixVttByAudio"/>.
+    /// </summary>
+    public bool LiveFixVttByAudio { get; set; }
 }

src/N_m3u8DL-RE/Config/DownloaderConfig.cs

@@ -1,33 +1,25 @@
 using N_m3u8DL_RE.CommandLine;
-using N_m3u8DL_RE.Enum;
-using N_m3u8DL_RE.Parser.Config;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Config
+namespace N_m3u8DL_RE.Config;
+
+internal class DownloaderConfig
 {
-    internal class DownloaderConfig
-    {
-        public required MyOption MyOptions { get; set; }
+    public required MyOption MyOptions { get; set; }
 
-        /// <summary>
-        /// 前置阶段生成的文件夹名
-        /// </summary>
-        public required string DirPrefix { get; set; }
-        /// <summary>
-        /// 文件名模板
-        /// </summary>
-        public string? SavePattern { get; set; }
-        /// <summary>
-        /// 校验响应头的文件大小和实际大小
-        /// </summary>
-        public bool CheckContentLength { get; set; } = true;
-        /// <summary>
-        /// 请求头
-        /// </summary>
-        public Dictionary<string, string> Headers { get; set; } = new Dictionary<string, string>();
-    }
+    /// <summary>
+    /// 前置阶段生成的文件夹名
+    /// </summary>
+    public required string DirPrefix { get; set; }
+    /// <summary>
+    /// 文件名模板
+    /// </summary>
+    public string? SavePattern { get; set; }
+    /// <summary>
+    /// 校验响应头的文件大小和实际大小
+    /// </summary>
+    public bool CheckContentLength { get; set; } = true;
+    /// <summary>
+    /// 请求头
+    /// </summary>
+    public Dictionary<string, string> Headers { get; set; } = new Dictionary<string, string>();
 }

src/N_m3u8DL-RE/Crypto/AESUtil.cs

@@ -1,44 +1,38 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Security.Cryptography;
-using System.Text;
-using System.Threading.Tasks;
+using System.Security.Cryptography;
 
-namespace N_m3u8DL_RE.Crypto
+namespace N_m3u8DL_RE.Crypto;
+
+internal static class AESUtil
 {
-    internal class AESUtil
+    /// <summary>
+    /// AES-128解密，解密后原地替换文件
+    /// </summary>
+    /// <param name="filePath"></param>
+    /// <param name="keyByte"></param>
+    /// <param name="ivByte"></param>
+    /// <param name="mode"></param>
+    /// <param name="padding"></param>
+    public static void AES128Decrypt(string filePath, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
     {
-        /// <summary>
-        /// AES-128解密，解密后原地替换文件
-        /// </summary>
-        /// <param name="filePath"></param>
-        /// <param name="keyByte"></param>
-        /// <param name="ivByte"></param>
-        /// <param name="mode"></param>
-        /// <param name="padding"></param>
-        public static void AES128Decrypt(string filePath, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
-        {
-            var fileBytes = File.ReadAllBytes(filePath);
-            var decrypted = AES128Decrypt(fileBytes, keyByte, ivByte, mode, padding);
-            File.WriteAllBytes(filePath, decrypted);
-        }
+        var fileBytes = File.ReadAllBytes(filePath);
+        var decrypted = AES128Decrypt(fileBytes, keyByte, ivByte, mode, padding);
+        File.WriteAllBytes(filePath, decrypted);
+    }
 
-        public static byte[] AES128Decrypt(byte[] encryptedBuff, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
-        {
-            byte[] inBuff = encryptedBuff;
+    public static byte[] AES128Decrypt(byte[] encryptedBuff, byte[] keyByte, byte[] ivByte, CipherMode mode = CipherMode.CBC, PaddingMode padding = PaddingMode.PKCS7)
+    {
+        byte[] inBuff = encryptedBuff;
 
-            Aes dcpt = Aes.Create();
-            dcpt.BlockSize = 128;
-            dcpt.KeySize = 128;
-            dcpt.Key = keyByte;
-            dcpt.IV = ivByte;
-            dcpt.Mode = mode;
-            dcpt.Padding = padding;
+        Aes dcpt = Aes.Create();
+        dcpt.BlockSize = 128;
+        dcpt.KeySize = 128;
+        dcpt.Key = keyByte;
+        dcpt.IV = ivByte;
+        dcpt.Mode = mode;
+        dcpt.Padding = padding;
 
-            ICryptoTransform cTransform = dcpt.CreateDecryptor();
-            byte[] resultArray = cTransform.TransformFinalBlock(inBuff, 0, inBuff.Length);
-            return resultArray;
-        }
+        ICryptoTransform cTransform = dcpt.CreateDecryptor();
+        byte[] resultArray = cTransform.TransformFinalBlock(inBuff, 0, inBuff.Length);
+        return resultArray;
     }
 }

src/N_m3u8DL-RE/Crypto/ChaCha20Util.cs

@@ -1,26 +1,21 @@
 using CSChaCha20;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Crypto
+namespace N_m3u8DL_RE.Crypto;
+
+internal static class ChaCha20Util
 {
-    internal class ChaCha20Util
+    public static byte[] DecryptPer1024Bytes(byte[] encryptedBuff, byte[] keyBytes, byte[] nonceBytes)
     {
-        public static byte[] DecryptPer1024Bytes(byte[] encryptedBuff, byte[] keyBytes, byte[] nonceBytes)
-        {
-            if (keyBytes.Length != 32)
-                throw new Exception("Key must be 32 bytes!");
-            if (nonceBytes.Length != 12 && nonceBytes.Length != 8)
-                throw new Exception("Key must be 12 or 8 bytes!");
-            if (nonceBytes.Length == 8)
-                nonceBytes = (new byte[4] { 0, 0, 0, 0 }).Concat(nonceBytes).ToArray();
+        if (keyBytes.Length != 32)
+            throw new Exception("Key must be 32 bytes!");
+        if (nonceBytes.Length != 12 && nonceBytes.Length != 8)
+            throw new Exception("Key must be 12 or 8 bytes!");
+        if (nonceBytes.Length == 8)
+            nonceBytes = (new byte[4] { 0, 0, 0, 0 }).Concat(nonceBytes).ToArray();
 
-            var decStream = new MemoryStream();
-            using BinaryReader reader = new BinaryReader(new MemoryStream(encryptedBuff));
-            using (BinaryWriter writer = new BinaryWriter(decStream))
+        var decStream = new MemoryStream();
+        using BinaryReader reader = new BinaryReader(new MemoryStream(encryptedBuff));
+        using (BinaryWriter writer = new BinaryWriter(decStream))
             while (true)
             {
                 var buffer = reader.ReadBytes(1024);
@@ -37,7 +32,6 @@ namespace N_m3u8DL_RE.Crypto
                 }
             }
 
-            return decStream.ToArray();
-        }
+        return decStream.ToArray();
     }
 }

src/N_m3u8DL-RE/Directory.Build.props

@@ -5,18 +5,18 @@
     <IlcFoldIdenticalMethodBodies>true</IlcFoldIdenticalMethodBodies>
     <StaticallyLinked Condition="$(RuntimeIdentifier.StartsWith('win'))">true</StaticallyLinked>
     <TrimMode>full</TrimMode>
-	<TrimmerDefaultAction>link</TrimmerDefaultAction>
-	<IlcTrimMetadata>true</IlcTrimMetadata>
-	<IlcGenerateStackTraceData>true</IlcGenerateStackTraceData>
-	<SatelliteResourceLanguages>zh-CN;zh-TW;en-US</SatelliteResourceLanguages>
-	  <PublishAot>true</PublishAot>
-	  <StripSymbols>true</StripSymbols>
-	  <ObjCopyName Condition="'$(RuntimeIdentifier)' == 'linux-arm64'">aarch64-linux-gnu-objcopy</ObjCopyName>
+    <TrimmerDefaultAction>link</TrimmerDefaultAction>
+    <IlcTrimMetadata>true</IlcTrimMetadata>
+    <IlcGenerateStackTraceData>true</IlcGenerateStackTraceData>
+    <SatelliteResourceLanguages>zh-CN;zh-TW;en-US</SatelliteResourceLanguages>
+    <PublishAot>true</PublishAot>
+    <StripSymbols>true</StripSymbols>
+    <ObjCopyName Condition="'$(RuntimeIdentifier)' == 'linux-arm64' or '$(RuntimeIdentifier)' == 'linux-musl-arm64'">aarch64-linux-gnu-objcopy</ObjCopyName>
   </PropertyGroup>
 
-	<ItemGroup Condition="'$(PublishAot)' == 'true' and '$(RuntimeIdentifier)' != 'win-arm64' and '$(RuntimeIdentifier)' != 'linux-arm64' and '$(RuntimeIdentifier)' != 'osx-arm64' and '$(RuntimeIdentifier)' != 'osx-x64'">
-		<PackageReference Include="PublishAotCompressed" Version="1.0.0" />
-	</ItemGroup>
+    <!--<ItemGroup Condition="'$(PublishAot)' == 'true' and '$(RuntimeIdentifier)' != 'win-arm64' and '$(RuntimeIdentifier)' != 'linux-arm64' and '$(RuntimeIdentifier)' != 'osx-arm64' and '$(RuntimeIdentifier)' != 'osx-x64'">
+        <PackageReference Include="PublishAotCompressed" Version="1.0.3" />
+    </ItemGroup>-->
     
   <ItemGroup>
     <RdXmlFile Include="rd.xml" />

src/N_m3u8DL-RE/DownloadManager/HTTPLiveRecordManager.cs

@@ -1,7 +1,5 @@
-using Mp4SubtitleParser;
-using N_m3u8DL_RE.Column;
+using N_m3u8DL_RE.Column;
 using N_m3u8DL_RE.Common.Entity;
-using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Resource;
 using N_m3u8DL_RE.Common.Util;
@@ -11,244 +9,234 @@ using N_m3u8DL_RE.Entity;
 using N_m3u8DL_RE.Parser;
 using N_m3u8DL_RE.Util;
 using Spectre.Console;
-using Spectre.Console.Rendering;
-using System;
 using System.Collections.Concurrent;
-using System.IO;
-using System.Net.Http.Headers;
-using System.Reflection.PortableExecutable;
 using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using System.Threading.Tasks.Dataflow;
-using System.Xml.Linq;
 
-namespace N_m3u8DL_RE.DownloadManager
+namespace N_m3u8DL_RE.DownloadManager;
+
+internal class HTTPLiveRecordManager
 {
-    internal class HTTPLiveRecordManager
+    IDownloader Downloader;
+    DownloaderConfig DownloaderConfig;
+    StreamExtractor StreamExtractor;
+    List<StreamSpec> SelectedSteams;
+    List<OutputFile> OutputFiles = [];
+    DateTime NowDateTime;
+    DateTime? PublishDateTime;
+    bool STOP_FLAG = false;
+    bool READ_IFO = false;
+    ConcurrentDictionary<int, int> RecordingDurDic = new(); // 已录制时长
+    ConcurrentDictionary<int, double> RecordingSizeDic = new(); // 已录制大小
+    CancellationTokenSource CancellationTokenSource = new(); // 取消Wait
+    List<byte> InfoBuffer = new List<byte>(188 * 5000); // 5000个分包中解析信息，没有就算了
+
+    public HTTPLiveRecordManager(DownloaderConfig downloaderConfig, List<StreamSpec> selectedSteams, StreamExtractor streamExtractor)
     {
-        IDownloader Downloader;
-        DownloaderConfig DownloaderConfig;
-        StreamExtractor StreamExtractor;
-        List<StreamSpec> SelectedSteams;
-        List<OutputFile> OutputFiles = new();
-        DateTime NowDateTime;
-        DateTime? PublishDateTime;
-        bool STOP_FLAG = false;
-        bool READ_IFO = false;
-        ConcurrentDictionary<int, int> RecordingDurDic = new(); //已录制时长
-        ConcurrentDictionary<int, double> RecordingSizeDic = new(); //已录制大小
-        CancellationTokenSource CancellationTokenSource = new(); //取消Wait
-        List<byte> InfoBuffer = new List<byte>(188 * 5000); //5000个分包中解析信息，没有就算了
+        this.DownloaderConfig = downloaderConfig;
+        Downloader = new SimpleDownloader(DownloaderConfig);
+        NowDateTime = DateTime.Now;
+        PublishDateTime = selectedSteams.FirstOrDefault()?.PublishTime;
+        StreamExtractor = streamExtractor;
+        SelectedSteams = selectedSteams;
+    }
 
-        public HTTPLiveRecordManager(DownloaderConfig downloaderConfig, List<StreamSpec> selectedSteams, StreamExtractor streamExtractor)
+    private async Task<bool> RecordStreamAsync(StreamSpec streamSpec, ProgressTask task, SpeedContainer speedContainer)
+    {
+        task.MaxValue = 1;
+        task.StartTask();
+
+        var name = streamSpec.ToShortString();
+        var dirName = $"{DownloaderConfig.MyOptions.SaveName ?? NowDateTime.ToString("yyyy-MM-dd_HH-mm-ss")}_{task.Id}_{OtherUtil.GetValidFileName(streamSpec.GroupId ?? "", "-")}_{streamSpec.Codecs}_{streamSpec.Bandwidth}_{streamSpec.Language}";
+        var saveDir = DownloaderConfig.MyOptions.SaveDir ?? Environment.CurrentDirectory;
+        var saveName = DownloaderConfig.MyOptions.SaveName != null ? $"{DownloaderConfig.MyOptions.SaveName}.{streamSpec.Language}".TrimEnd('.') : dirName;
+
+        Logger.Debug($"dirName: {dirName}; saveDir: {saveDir}; saveName: {saveName}");
+
+        // 创建文件夹
+        if (!Directory.Exists(saveDir)) Directory.CreateDirectory(saveDir);
+
+        using var request = new HttpRequestMessage(HttpMethod.Get, new Uri(streamSpec.Url));
+        request.Headers.ConnectionClose = false;
+        foreach (var item in DownloaderConfig.Headers)
         {
-            this.DownloaderConfig = downloaderConfig;
-            Downloader = new SimpleDownloader(DownloaderConfig);
-            NowDateTime = DateTime.Now;
-            PublishDateTime = selectedSteams.FirstOrDefault()?.PublishTime;
-            StreamExtractor = streamExtractor;
-            SelectedSteams = selectedSteams;
+            request.Headers.TryAddWithoutValidation(item.Key, item.Value);
+        }
+        Logger.Debug(request.Headers.ToString());
+
+        using var response = await HTTPUtil.AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, CancellationTokenSource.Token);
+        response.EnsureSuccessStatusCode();
+
+        var output = Path.Combine(saveDir, saveName + ".ts");
+        using var stream = new FileStream(output, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read);
+        using var responseStream = await response.Content.ReadAsStreamAsync(CancellationTokenSource.Token);
+        var buffer = new byte[16 * 1024];
+        var size = 0;
+
+        // 计时器
+        _ = TimeCounterAsync();
+        // 读取INFO
+        _ = ReadInfoAsync();
+
+        try
+        {
+            while ((size = await responseStream.ReadAsync(buffer, CancellationTokenSource.Token)) > 0)
+            {
+                if (!READ_IFO && InfoBuffer.Count < 188 * 5000)
+                {
+                    InfoBuffer.AddRange(buffer);
+                }
+                speedContainer.Add(size);
+                RecordingSizeDic[task.Id] += size;
+                await stream.WriteAsync(buffer, 0, size);
+            }
+        }
+        catch (OperationCanceledException oce) when (oce.CancellationToken == CancellationTokenSource.Token)
+        {
+            ;
         }
 
-        private async Task<bool> RecordStreamAsync(StreamSpec streamSpec, ProgressTask task, SpeedContainer speedContainer)
+        Logger.InfoMarkUp("File Size: " + GlobalUtil.FormatFileSize(RecordingSizeDic[task.Id]));
+
+        return true;
+    }
+
+    public async Task ReadInfoAsync()
+    {
+        while (!STOP_FLAG && !READ_IFO)
         {
-            task.MaxValue = 1;
-            task.StartTask();
+            await Task.Delay(200);
+            if (InfoBuffer.Count < 188 * 5000) continue;
 
-            var name = streamSpec.ToShortString();
-            var dirName = $"{DownloaderConfig.MyOptions.SaveName ?? NowDateTime.ToString("yyyy-MM-dd_HH-mm-ss")}_{task.Id}_{OtherUtil.GetValidFileName(streamSpec.GroupId ?? "", "-")}_{streamSpec.Codecs}_{streamSpec.Bandwidth}_{streamSpec.Language}";
-            var saveDir = DownloaderConfig.MyOptions.SaveDir ?? Environment.CurrentDirectory;
-            var saveName = DownloaderConfig.MyOptions.SaveName != null ? $"{DownloaderConfig.MyOptions.SaveName}.{streamSpec.Language}".TrimEnd('.') : dirName;
-
-            Logger.Debug($"dirName: {dirName}; saveDir: {saveDir}; saveName: {saveName}");
-
-            //创建文件夹
-            if (!Directory.Exists(saveDir)) Directory.CreateDirectory(saveDir);
-
-            using var request = new HttpRequestMessage(HttpMethod.Get, new Uri(streamSpec.Url));
-            request.Headers.ConnectionClose = false;
-            foreach (var item in DownloaderConfig.Headers)
+            ushort ConvertToUint16(IEnumerable<byte> bytes)
             {
-                request.Headers.TryAddWithoutValidation(item.Key, item.Value);
+                if (BitConverter.IsLittleEndian)
+                    bytes = bytes.Reverse();
+                return BitConverter.ToUInt16(bytes.ToArray());
             }
-            Logger.Debug(request.Headers.ToString());
 
-            using var response = await HTTPUtil.AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, CancellationTokenSource.Token);
-            response.EnsureSuccessStatusCode();
-
-            var output = Path.Combine(saveDir, saveName + ".ts");
-            using var stream = new FileStream(output, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read);
-            using var responseStream = await response.Content.ReadAsStreamAsync(CancellationTokenSource.Token);
-            var buffer = new byte[16 * 1024];
-            var size = 0;
-
-            //计时器
-            TimeCounterAsync();
-            //读取INFO
-            ReadInfoAsync();
-
-            try
+            var data = InfoBuffer.ToArray();
+            var programId = "";
+            var serviceProvider = "";
+            var serviceName = "";
+            for (int i = 0; i < data.Length; i++)
             {
-                while ((size = await responseStream.ReadAsync(buffer, CancellationTokenSource.Token)) > 0)
+                if (data[i] == 0x47 && (i + 188) < data.Length && data[i + 188] == 0x47)
                 {
-                    if (!READ_IFO && InfoBuffer.Count < 188 * 5000)
+                    var tsData = data.Skip(i).Take(188);
+                    var tsHeaderInt = BitConverter.ToUInt32(BitConverter.IsLittleEndian ? tsData.Take(4).Reverse().ToArray() : tsData.Take(4).ToArray(), 0);
+                    var pid = (tsHeaderInt & 0x1fff00) >> 8;
+                    var tsPayload = tsData.Skip(4);
+                    // PAT
+                    if (pid == 0x0000)
                     {
-                        InfoBuffer.AddRange(buffer);
+                        programId = ConvertToUint16(tsPayload.Skip(9).Take(2)).ToString();
                     }
-                    speedContainer.Add(size);
-                    RecordingSizeDic[task.Id] += size;
-                    await stream.WriteAsync(buffer, 0, size);
-                }
-            }
-            catch (OperationCanceledException oce) when (oce.CancellationToken == CancellationTokenSource.Token)
-            {
-                ;
-            }
-
-            Logger.InfoMarkUp("File Size: " + GlobalUtil.FormatFileSize(RecordingSizeDic[task.Id]));
-
-            return true;
-        }
-
-        public async Task ReadInfoAsync()
-        {
-            while (!STOP_FLAG && !READ_IFO)
-            {
-                await Task.Delay(200);
-                if (InfoBuffer.Count < 188 * 5000) continue;
-
-                UInt16 ConvertToUint16(IEnumerable<byte> bytes)
-                {
-                    if (BitConverter.IsLittleEndian)
-                        bytes = bytes.Reverse();
-                    return BitConverter.ToUInt16(bytes.ToArray());
-                }
-
-                var data = InfoBuffer.ToArray();
-                var programId = "";
-                var serviceProvider = "";
-                var serviceName = "";
-                for (int i = 0; i < data.Length; i++)
-                {
-                    if (data[i] == 0x47 && (i + 188) < data.Length && data[i + 188] == 0x47)
+                    // SDT, BAT, ST
+                    else if (pid == 0x0011)
                     {
-                        var tsData = data.Skip(i).Take(188);
-                        var tsHeaderInt = BitConverter.ToUInt32(BitConverter.IsLittleEndian ? tsData.Take(4).Reverse().ToArray() : tsData.Take(4).ToArray(), 0);
-                        var pid = (tsHeaderInt & 0x1fff00) >> 8;
-                        var tsPayload = tsData.Skip(4);
-                        //PAT
-                        if (pid == 0x0000)
+                        var tableId = (int)tsPayload.Skip(1).First();
+                        // Current TS Info
+                        if (tableId == 0x42)
                         {
-                            programId = ConvertToUint16(tsPayload.Skip(9).Take(2)).ToString();
+                            var sectionLength = ConvertToUint16(tsPayload.Skip(2).Take(2)) & 0xfff;
+                            var sectionData = tsPayload.Skip(4).Take(sectionLength);
+                            var dscripData = sectionData.Skip(8);
+                            var descriptorsLoopLength = (ConvertToUint16(dscripData.Skip(3).Take(2))) & 0xfff;
+                            var descriptorsData = dscripData.Skip(5).Take(descriptorsLoopLength);
+                            var serviceProviderLength = (int)descriptorsData.Skip(3).First();
+                            serviceProvider = Encoding.UTF8.GetString(descriptorsData.Skip(4).Take(serviceProviderLength).ToArray());
+                            var serviceNameLength = (int)descriptorsData.Skip(4 + serviceProviderLength).First();
+                            serviceName = Encoding.UTF8.GetString(descriptorsData.Skip(5 + serviceProviderLength).Take(serviceNameLength).ToArray());
                         }
-                        //SDT, BAT, ST
-                        else if (pid == 0x0011)
-                        {
-                            var tableId = (int)tsPayload.Skip(1).First();
-                            //Current TS Info
-                            if (tableId == 0x42)
-                            {
-                                var sectionLength = ConvertToUint16(tsPayload.Skip(2).Take(2)) & 0xfff;
-                                var sectionData = tsPayload.Skip(4).Take(sectionLength);
-                                var dscripData = sectionData.Skip(8);
-                                var descriptorsLoopLength = (ConvertToUint16(dscripData.Skip(3).Take(2))) & 0xfff;
-                                var descriptorsData = dscripData.Skip(5).Take(descriptorsLoopLength);
-                                var serviceProviderLength = (int)descriptorsData.Skip(3).First();
-                                serviceProvider = Encoding.UTF8.GetString(descriptorsData.Skip(4).Take(serviceProviderLength).ToArray());
-                                var serviceNameLength = (int)descriptorsData.Skip(4 + serviceProviderLength).First();
-                                serviceName = Encoding.UTF8.GetString(descriptorsData.Skip(5 + serviceProviderLength).Take(serviceNameLength).ToArray());
-                            }
-                        }
-                        if (programId != "" && (serviceName != "" || serviceProvider != ""))
-                            break;
                     }
-                }
-
-                if (!string.IsNullOrEmpty(programId))
-                {
-                    Logger.InfoMarkUp($"Program Id: [cyan]{programId.EscapeMarkup()}[/]");
-                    if (!string.IsNullOrEmpty(serviceName)) Logger.InfoMarkUp($"Service Name: [cyan]{serviceName.EscapeMarkup()}[/]");
-                    if (!string.IsNullOrEmpty(serviceProvider)) Logger.InfoMarkUp($"Service Provider: [cyan]{serviceProvider.EscapeMarkup()}[/]");
-                    READ_IFO = true;
+                    if (programId != "" && (serviceName != "" || serviceProvider != ""))
+                        break;
                 }
             }
-        }
 
-        public async Task TimeCounterAsync()
-        {
-            while (!STOP_FLAG)
+            if (!string.IsNullOrEmpty(programId))
             {
-                await Task.Delay(1000);
-                RecordingDurDic[0]++;
-
-                //检测时长限制
-                if (RecordingDurDic.All(d => d.Value >= DownloaderConfig.MyOptions.LiveRecordLimit?.TotalSeconds))
-                {
-                    Logger.WarnMarkUp($"[darkorange3_1]{ResString.liveLimitReached}[/]");
-                    STOP_FLAG = true;
-                    CancellationTokenSource.Cancel();
-                }
+                Logger.InfoMarkUp($"Program Id: [cyan]{programId.EscapeMarkup()}[/]");
+                if (!string.IsNullOrEmpty(serviceName)) Logger.InfoMarkUp($"Service Name: [cyan]{serviceName.EscapeMarkup()}[/]");
+                if (!string.IsNullOrEmpty(serviceProvider)) Logger.InfoMarkUp($"Service Provider: [cyan]{serviceProvider.EscapeMarkup()}[/]");
+                READ_IFO = true;
             }
         }
-
-        public async Task<bool> StartRecordAsync()
-        {
-            ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic = new(); //速度计算
-            ConcurrentDictionary<StreamSpec, bool?> Results = new();
-
-            var progress = CustomAnsiConsole.Console.Progress().AutoClear(true);
-            progress.AutoRefresh = DownloaderConfig.MyOptions.LogLevel != LogLevel.OFF;
-
-            //进度条的列定义
-            var progressColumns = new ProgressColumn[]
-            {
-                new TaskDescriptionColumn() { Alignment = Justify.Left },
-                new RecordingDurationColumn(RecordingDurDic), //时长显示
-                new RecordingSizeColumn(RecordingSizeDic), //大小显示
-                new RecordingStatusColumn(),
-                new DownloadSpeedColumn(SpeedContainerDic), //速度计算
-                new SpinnerColumn(),
-            };
-            if (DownloaderConfig.MyOptions.NoAnsiColor)
-            {
-                progressColumns = progressColumns.SkipLast(1).ToArray();
-            }
-            progress.Columns(progressColumns);
-
-            await progress.StartAsync(async ctx =>
-            {
-                //创建任务
-                var dic = SelectedSteams.Select(item =>
-                {
-                    var task = ctx.AddTask(item.ToShortString(), autoStart: false, maxValue: 0);
-                    SpeedContainerDic[task.Id] = new SpeedContainer(); //速度计算
-                    RecordingDurDic[task.Id] = 0;
-                    RecordingSizeDic[task.Id] = 0;
-                    return (item, task);
-                }).ToDictionary(item => item.item, item => item.task);
-
-                DownloaderConfig.MyOptions.LiveRecordLimit = DownloaderConfig.MyOptions.LiveRecordLimit ?? TimeSpan.MaxValue;
-                var limit = DownloaderConfig.MyOptions.LiveRecordLimit;
-                if (limit != TimeSpan.MaxValue)
-                    Logger.WarnMarkUp($"[darkorange3_1]{ResString.liveLimit}{GlobalUtil.FormatTime((int)limit.Value.TotalSeconds)}[/]");
-                //录制直播时，用户选了几个流就并发录几个
-                var options = new ParallelOptions()
-                {
-                    MaxDegreeOfParallelism = SelectedSteams.Count
-                };
-                //并发下载
-                await Parallel.ForEachAsync(dic, options, async (kp, _) =>
-                {
-                    var task = kp.Value;
-                    var consumerTask = RecordStreamAsync(kp.Key, task, SpeedContainerDic[task.Id]);
-                    Results[kp.Key] = await consumerTask;
-                });
-            });
-
-            var success = Results.Values.All(v => v == true);
-
-            return success;
-        }
+    }
+
+    public async Task TimeCounterAsync()
+    {
+        while (!STOP_FLAG)
+        {
+            await Task.Delay(1000);
+            RecordingDurDic[0]++;
+
+            // 检测时长限制
+            if (RecordingDurDic.All(d => d.Value >= DownloaderConfig.MyOptions.LiveRecordLimit?.TotalSeconds))
+            {
+                Logger.WarnMarkUp($"[darkorange3_1]{ResString.liveLimitReached}[/]");
+                STOP_FLAG = true;
+                CancellationTokenSource.Cancel();
+            }
+        }
+    }
+
+    public async Task<bool> StartRecordAsync()
+    {
+        ConcurrentDictionary<int, SpeedContainer> SpeedContainerDic = new(); // 速度计算
+        ConcurrentDictionary<StreamSpec, bool?> Results = new();
+
+        var progress = CustomAnsiConsole.Console.Progress().AutoClear(true);
+        progress.AutoRefresh = DownloaderConfig.MyOptions.LogLevel != LogLevel.OFF;
+
+        // 进度条的列定义
+        var progressColumns = new ProgressColumn[]
+        {
+            new TaskDescriptionColumn() { Alignment = Justify.Left },
+            new RecordingDurationColumn(RecordingDurDic), // 时长显示
+            new RecordingSizeColumn(RecordingSizeDic), // 大小显示
+            new RecordingStatusColumn(),
+            new DownloadSpeedColumn(SpeedContainerDic), // 速度计算
+            new SpinnerColumn(),
+        };
+        if (DownloaderConfig.MyOptions.NoAnsiColor)
+        {
+            progressColumns = progressColumns.SkipLast(1).ToArray();
+        }
+        progress.Columns(progressColumns);
+
+        await progress.StartAsync(async ctx =>
+        {
+            // 创建任务
+            var dic = SelectedSteams.Select(item =>
+            {
+                var task = ctx.AddTask(item.ToShortString(), autoStart: false, maxValue: 0);
+                SpeedContainerDic[task.Id] = new SpeedContainer(); // 速度计算
+                RecordingDurDic[task.Id] = 0;
+                RecordingSizeDic[task.Id] = 0;
+                return (item, task);
+            }).ToDictionary(item => item.item, item => item.task);
+
+            DownloaderConfig.MyOptions.LiveRecordLimit ??= TimeSpan.MaxValue;
+            var limit = DownloaderConfig.MyOptions.LiveRecordLimit;
+            if (limit != TimeSpan.MaxValue)
+                Logger.WarnMarkUp($"[darkorange3_1]{ResString.liveLimit}{GlobalUtil.FormatTime((int)limit.Value.TotalSeconds)}[/]");
+            // 录制直播时，用户选了几个流就并发录几个
+            var options = new ParallelOptions()
+            {
+                MaxDegreeOfParallelism = SelectedSteams.Count
+            };
+            // 并发下载
+            await Parallel.ForEachAsync(dic, options, async (kp, _) =>
+            {
+                var task = kp.Value;
+                var consumerTask = RecordStreamAsync(kp.Key, task, SpeedContainerDic[task.Id]);
+                Results[kp.Key] = await consumerTask;
+            });
+        });
+
+        var success = Results.Values.All(v => v == true);
+
+        return success;
     }
 }

src/N_m3u8DL-RE/Downloader/IDownloader.cs

@@ -1,15 +1,9 @@
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Entity;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Downloader
+namespace N_m3u8DL_RE.Downloader;
+
+internal interface IDownloader
 {
-    internal interface IDownloader
-    {
-        Task<DownloadResult?> DownloadSegmentAsync(MediaSegment segment, string savePath, SpeedContainer speedContainer, Dictionary<string, string>? headers = null);
-    }
+    Task<DownloadResult?> DownloadSegmentAsync(MediaSegment segment, string savePath, SpeedContainer speedContainer, Dictionary<string, string>? headers = null);
 }

src/N_m3u8DL-RE/Downloader/SimpleDownloader.cs

@@ -6,155 +6,148 @@ using N_m3u8DL_RE.Crypto;
 using N_m3u8DL_RE.Entity;
 using N_m3u8DL_RE.Util;
 using Spectre.Console;
-using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Data;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Downloader
+namespace N_m3u8DL_RE.Downloader;
+
+/// <summary>
+/// 简单下载器
+/// </summary>
+internal class SimpleDownloader : IDownloader
 {
-    /// <summary>
-    /// 简单下载器
-    /// </summary>
-    internal class SimpleDownloader : IDownloader
+    DownloaderConfig DownloaderConfig;
+
+    public SimpleDownloader(DownloaderConfig config)
     {
-        DownloaderConfig DownloaderConfig;
+        DownloaderConfig = config;
+    }
 
-        public SimpleDownloader(DownloaderConfig config)
+    public async Task<DownloadResult?> DownloadSegmentAsync(MediaSegment segment, string savePath, SpeedContainer speedContainer, Dictionary<string, string>? headers = null)
+    {
+        var url = segment.Url;
+        var (des, dResult) = await DownClipAsync(url, savePath, speedContainer, segment.StartRange, segment.StopRange, headers, DownloaderConfig.MyOptions.DownloadRetryCount);
+        if (dResult is { Success: true } && dResult.ActualFilePath != des)
         {
-            DownloaderConfig = config;
-        }
-
-        public async Task<DownloadResult?> DownloadSegmentAsync(MediaSegment segment, string savePath, SpeedContainer speedContainer, Dictionary<string, string>? headers = null)
-        {
-            var url = segment.Url;
-            var (des, dResult) = await DownClipAsync(url, savePath, speedContainer, segment.StartRange, segment.StopRange, headers, DownloaderConfig.MyOptions.DownloadRetryCount);
-            if (dResult != null && dResult.Success && dResult.ActualFilePath != des)
+            switch (segment.EncryptInfo.Method)
             {
-                if (segment.EncryptInfo != null)
+                case EncryptMethod.AES_128:
                 {
-                    if (segment.EncryptInfo.Method == EncryptMethod.AES_128)
-                    {
-                        var key = segment.EncryptInfo.Key;
-                        var iv = segment.EncryptInfo.IV;
-                        AESUtil.AES128Decrypt(dResult.ActualFilePath, key!, iv!);
-                    }
-                    else if (segment.EncryptInfo.Method == EncryptMethod.AES_128_ECB)
-                    {
-                        var key = segment.EncryptInfo.Key;
-                        var iv = segment.EncryptInfo.IV;
-                        AESUtil.AES128Decrypt(dResult.ActualFilePath, key!, iv!, System.Security.Cryptography.CipherMode.ECB);
-                    }
-                    else if (segment.EncryptInfo.Method == EncryptMethod.CHACHA20)
-                    {
-                        var key = segment.EncryptInfo.Key;
-                        var nonce = segment.EncryptInfo.IV;
-
-                        var fileBytes = File.ReadAllBytes(dResult.ActualFilePath);
-                        var decrypted = ChaCha20Util.DecryptPer1024Bytes(fileBytes, key!, nonce!);
-                        await File.WriteAllBytesAsync(dResult.ActualFilePath, decrypted);
-                    }
-                    else if (segment.EncryptInfo.Method == EncryptMethod.SAMPLE_AES_CTR)
-                    {
-                        //throw new NotSupportedException("SAMPLE-AES-CTR");
-                    }
-
-                    //Image头处理
-                    if (dResult.ImageHeader)
-                    {
-                        await ImageHeaderUtil.ProcessAsync(dResult.ActualFilePath);
-                    }
-                    //Gzip解压
-                    if (dResult.GzipHeader)
-                    {
-                        await OtherUtil.DeGzipFileAsync(dResult.ActualFilePath);
-                    }
+                    var key = segment.EncryptInfo.Key;
+                    var iv = segment.EncryptInfo.IV;
+                    AESUtil.AES128Decrypt(dResult.ActualFilePath, key!, iv!);
+                    break;
                 }
+                case EncryptMethod.AES_128_ECB:
+                {
+                    var key = segment.EncryptInfo.Key;
+                    var iv = segment.EncryptInfo.IV;
+                    AESUtil.AES128Decrypt(dResult.ActualFilePath, key!, iv!, System.Security.Cryptography.CipherMode.ECB);
+                    break;
+                }
+                case EncryptMethod.CHACHA20:
+                {
+                    var key = segment.EncryptInfo.Key;
+                    var nonce = segment.EncryptInfo.IV;
 
-                //处理完成后改名
-                File.Move(dResult.ActualFilePath, des);
-                dResult.ActualFilePath = des;
+                    var fileBytes = File.ReadAllBytes(dResult.ActualFilePath);
+                    var decrypted = ChaCha20Util.DecryptPer1024Bytes(fileBytes, key!, nonce!);
+                    await File.WriteAllBytesAsync(dResult.ActualFilePath, decrypted);
+                    break;
+                }
+                case EncryptMethod.SAMPLE_AES_CTR:
+                    // throw new NotSupportedException("SAMPLE-AES-CTR");
+                    break;
             }
-            return dResult;
-        }
 
-        private async Task<(string des, DownloadResult? dResult)> DownClipAsync(string url, string path, SpeedContainer speedContainer, long? fromPosition, long? toPosition, Dictionary<string, string>? headers = null, int retryCount = 3)
-        {
-            CancellationTokenSource? cancellationTokenSource = null;
+            // Image头处理
+            if (dResult.ImageHeader)
+            {
+                await ImageHeaderUtil.ProcessAsync(dResult.ActualFilePath);
+            }
+            // Gzip解压
+            if (dResult.GzipHeader)
+            {
+                await OtherUtil.DeGzipFileAsync(dResult.ActualFilePath);
+            }
+
+            // 处理完成后改名
+            File.Move(dResult.ActualFilePath, des);
+            dResult.ActualFilePath = des;
+        }
+        return dResult;
+    }
+
+    private async Task<(string des, DownloadResult? dResult)> DownClipAsync(string url, string path, SpeedContainer speedContainer, long? fromPosition, long? toPosition, Dictionary<string, string>? headers = null, int retryCount = 3)
+    {
+        CancellationTokenSource? cancellationTokenSource = null;
         retry:
-            try
+        try
+        {
+            cancellationTokenSource = new();
+            var des = Path.ChangeExtension(path, null);
+
+            // 已下载跳过
+            if (File.Exists(des))
             {
-                cancellationTokenSource = new();
-                var des = Path.ChangeExtension(path, null);
+                speedContainer.Add(new FileInfo(des).Length);
+                return (des, new DownloadResult() { ActualContentLength = 0, ActualFilePath = des });
+            }
 
-                //已下载跳过
-                if (File.Exists(des))
-                {
-                    speedContainer.Add(new FileInfo(des).Length);
-                    return (des, new DownloadResult() { ActualContentLength = 0, ActualFilePath = des });
-                }
+            // 已解密跳过
+            var dec = Path.Combine(Path.GetDirectoryName(des)!, Path.GetFileNameWithoutExtension(des) + "_dec" + Path.GetExtension(des));
+            if (File.Exists(dec))
+            {
+                speedContainer.Add(new FileInfo(dec).Length);
+                return (dec, new DownloadResult() { ActualContentLength = 0, ActualFilePath = dec });
+            }
 
-                //已解密跳过
-                var dec = Path.Combine(Path.GetDirectoryName(des)!, Path.GetFileNameWithoutExtension(des) + "_dec" + Path.GetExtension(des));
-                if (File.Exists(dec))
+            // 另起线程进行监控
+            var cts = cancellationTokenSource;
+            using var watcher = Task.Factory.StartNew(async () =>
+            {
+                while (true)
                 {
-                    speedContainer.Add(new FileInfo(dec).Length);
-                    return (dec, new DownloadResult() { ActualContentLength = 0, ActualFilePath = dec });
-                }
-
-                //另起线程进行监控
-                using var watcher = Task.Factory.StartNew(async () =>
-                {
-                    while (true)
+                    if (cts.IsCancellationRequested) break;
+                    if (speedContainer.ShouldStop)
                     {
-                        if (cancellationTokenSource == null || cancellationTokenSource.IsCancellationRequested) break;
-                        if (speedContainer.ShouldStop)
-                        {
-                            cancellationTokenSource.Cancel();
-                            Logger.DebugMarkUp("Cancel...");
-                            break;
-                        }
-                        await Task.Delay(500);
+                        cts.Cancel();
+                        Logger.DebugMarkUp("Cancel...");
+                        break;
                     }
-                });
+                    await Task.Delay(500);
+                }
+            });
 
-                //调用下载
-                var result = await DownloadUtil.DownloadToFileAsync(url, path, speedContainer, cancellationTokenSource, headers, fromPosition, toPosition);
-                return (des, result);
+            // 调用下载
+            var result = await DownloadUtil.DownloadToFileAsync(url, path, speedContainer, cancellationTokenSource, headers, fromPosition, toPosition);
+            return (des, result);
 
-                throw new Exception("please retry");
-            }
-            catch (Exception ex)
+            throw new Exception("please retry");
+        }
+        catch (Exception ex)
+        {
+            Logger.DebugMarkUp($"[grey]{ex.Message.EscapeMarkup()} retryCount: {retryCount}[/]");
+            Logger.Debug(url + " " + ex);
+            Logger.Extra($"Ah oh!{Environment.NewLine}RetryCount => {retryCount}{Environment.NewLine}Exception  => {ex.Message}{Environment.NewLine}Url        => {url}");
+            if (retryCount-- > 0)
             {
-                Logger.DebugMarkUp($"[grey]{ex.Message.EscapeMarkup()} retryCount: {retryCount}[/]");
-                Logger.Debug(url + " " + ex.ToString());
-                Logger.Extra($"Ah oh!{Environment.NewLine}RetryCount => {retryCount}{Environment.NewLine}Exception  => {ex.Message}{Environment.NewLine}Url        => {url}");
-                if (retryCount-- > 0)
-                {
-                    await Task.Delay(1000);
-                    goto retry;
-                }
-                else
-                {
-                    Logger.Extra($"The retry attempts have been exhausted and the download of this segment has failed.{Environment.NewLine}Exception  => {ex.Message}{Environment.NewLine}Url        => {url}");
-                    Logger.WarnMarkUp($"[grey]{ex.Message.EscapeMarkup()}[/]");
-                }
-                //throw new Exception("download failed", ex);
-                return default;
+                await Task.Delay(1000);
+                goto retry;
             }
-            finally
+            else
             {
-                if (cancellationTokenSource != null)
-                {
-                    //调用后销毁
-                    cancellationTokenSource.Dispose();
-                    cancellationTokenSource = null;
-                }
+                Logger.Extra($"The retry attempts have been exhausted and the download of this segment has failed.{Environment.NewLine}Exception  => {ex.Message}{Environment.NewLine}Url        => {url}");
+                Logger.WarnMarkUp($"[grey]{ex.Message.EscapeMarkup()}[/]");
+            }
+            // throw new Exception("download failed", ex);
+            return default;
+        }
+        finally
+        {
+            if (cancellationTokenSource != null)
+            {
+                // 调用后销毁
+                cancellationTokenSource.Dispose();
+                cancellationTokenSource = null;
             }
         }
     }

src/N_m3u8DL-RE/Entity/CustomRange.cs

@@ -1,23 +1,16 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Entity;
 
-namespace N_m3u8DL_RE.Entity
+public class CustomRange
 {
-    public class CustomRange
+    public required string InputStr { get; set; }
+    public double? StartSec { get; set; }
+    public double? EndSec { get; set; }
+
+    public long? StartSegIndex { get; set; }
+    public long? EndSegIndex { get; set;}
+
+    public override string? ToString()
     {
-        public required string InputStr { get; set; }
-        public double? StartSec { get; set; }
-        public double? EndSec { get; set; }
-
-        public long? StartSegIndex { get; set; }
-        public long? EndSegIndex { get; set;}
-
-        public override string? ToString()
-        {
-            return $"StartSec: {StartSec}, EndSec: {EndSec}, StartSegIndex: {StartSegIndex}, EndSegIndex: {EndSegIndex}";
-        }
+        return $"StartSec: {StartSec}, EndSec: {EndSec}, StartSegIndex: {StartSegIndex}, EndSegIndex: {EndSegIndex}";
     }
 }

src/N_m3u8DL-RE/Entity/DownloadResult.cs

@@ -1,19 +1,11 @@
-using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Entity;
 
-namespace N_m3u8DL_RE.Entity
+internal class DownloadResult
 {
-    internal class DownloadResult
-    {
-        public bool Success { get => (ActualContentLength != null && RespContentLength != null) ? (RespContentLength == ActualContentLength) : (ActualContentLength == null ? false : true); }
-        public long? RespContentLength { get; set; }
-        public long? ActualContentLength { get; set; }
-        public bool ImageHeader { get; set; } = false; //图片伪装
-        public bool GzipHeader { get; set; } = false; //GZip压缩
-        public required string ActualFilePath { get; set; }
-    }
+    public bool Success => (ActualContentLength != null && RespContentLength != null) ? (RespContentLength == ActualContentLength) : (ActualContentLength != null);
+    public long? RespContentLength { get; set; }
+    public long? ActualContentLength { get; set; }
+    public bool ImageHeader { get; set; } = false; // 图片伪装
+    public bool GzipHeader { get; set; } = false; // GZip压缩
+    public required string ActualFilePath { get; set; }
 }

src/N_m3u8DL-RE/Entity/Mediainfo.cs

@@ -1,33 +1,27 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Spectre.Console;
+using Spectre.Console;
 
-namespace N_m3u8DL_RE.Entity
+namespace N_m3u8DL_RE.Entity;
+
+internal class Mediainfo
 {
-    internal class Mediainfo
+    public string? Id { get; set; }
+    public string? Text { get; set; }
+    public string? BaseInfo { get; set; }
+    public string? Bitrate { get; set; }
+    public string? Resolution { get; set; }
+    public string? Fps { get; set; }
+    public string? Type { get; set; }
+    public TimeSpan? StartTime { get; set; }
+    public bool DolbyVison { get; set; }
+    public bool HDR { get; set; }
+
+    public override string? ToString()
     {
-        public string? Id { get; set; }
-        public string? Text { get; set; }
-        public string? BaseInfo { get; set; }
-        public string? Bitrate { get; set; }
-        public string? Resolution { get; set; }
-        public string? Fps { get; set; }
-        public string? Type { get; set; }
-        public TimeSpan? StartTime { get; set; }
-        public bool DolbyVison { get; set; }
-        public bool HDR { get; set; }
+        return $"{(string.IsNullOrEmpty(Id) ? "NaN" : Id)}: " + string.Join(", ", new List<string?> { Type, BaseInfo, Resolution, Fps, Bitrate }.Where(i => !string.IsNullOrEmpty(i)));
+    }
 
-        public override string? ToString()
-        {
-            return $"{(string.IsNullOrEmpty(Id) ? "NaN" : Id)}: " + string.Join(", ", new List<string?> { Type, BaseInfo, Resolution, Fps, Bitrate }.Where(i => !string.IsNullOrEmpty(i)));
-        }
-
-        public string ToStringMarkUp()
-        {
-            return "[steelblue]" + ToString().EscapeMarkup() + ((HDR && !DolbyVison) ? " [darkorange3_1][[HDR]][/]" : "") + (DolbyVison ? " [darkorange3_1][[DOVI]][/]" : "") + "[/]";
-        }
+    public string ToStringMarkUp()
+    {
+        return "[steelblue]" + ToString().EscapeMarkup() + ((HDR && !DolbyVison) ? " [darkorange3_1][[HDR]][/]" : "") + (DolbyVison ? " [darkorange3_1][[DOVI]][/]" : "") + "[/]";
     }
 }

src/N_m3u8DL-RE/Entity/MuxOptions.cs

@@ -1,17 +1,12 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using N_m3u8DL_RE.Enum;
 
-namespace N_m3u8DL_RE.Entity
+namespace N_m3u8DL_RE.Entity;
+
+internal class MuxOptions
 {
-    internal class MuxOptions
-    {
-        public bool UseMkvmerge { get; set; } = false;
-        public bool MuxToMp4 { get; set; } = false;
-        public bool KeepFiles { get; set; } = false;
-        public bool SkipSubtitle { get; set; } = false;
-        public string? BinPath { get; set; }
-    }
+    public bool UseMkvmerge { get; set; } = false;
+    public MuxFormat MuxFormat { get; set; } = MuxFormat.MP4;
+    public bool KeepFiles { get; set; } = false;
+    public bool SkipSubtitle { get; set; } = false;
+    public string? BinPath { get; set; }
 }

src/N_m3u8DL-RE/Entity/OutputFile.cs

@@ -1,19 +1,13 @@
 using N_m3u8DL_RE.Common.Enum;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Entity
+namespace N_m3u8DL_RE.Entity;
+
+internal class OutputFile
 {
-    internal class OutputFile
-    {
-        public MediaType? MediaType { get; set; }
-        public required int Index { get; set; }
-        public required string FilePath { get; set; }
-        public string? LangCode { get; set; }
-        public string? Description { get; set; }
-        public List<Mediainfo> Mediainfos { get; set; } = new();
-    }
+    public MediaType? MediaType { get; set; }
+    public required int Index { get; set; }
+    public required string FilePath { get; set; }
+    public string? LangCode { get; set; }
+    public string? Description { get; set; }
+    public List<Mediainfo> Mediainfos { get; set; } = [];
 }

src/N_m3u8DL-RE/Entity/SpeedContainer.cs

@@ -1,59 +1,49 @@
-using NiL.JS.Statements;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Entity;
 
-namespace N_m3u8DL_RE.Entity
+internal class SpeedContainer
 {
-    internal class SpeedContainer
+    public bool SingleSegment { get; set; } = false;
+    public long NowSpeed { get; set; } = 0L; // 当前每秒速度
+    public long SpeedLimit { get; set; } = long.MaxValue; // 限速设置
+    public long? ResponseLength { get; set; }
+    public long RDownloaded => _Rdownloaded;
+    private int _zeroSpeedCount = 0;
+    public int LowSpeedCount => _zeroSpeedCount;
+    public bool ShouldStop => LowSpeedCount >= 20;
+
+    ///////////////////////////////////////////////////
+
+    private long _downloaded = 0;
+    private long _Rdownloaded = 0;
+    public long Downloaded => _downloaded;
+
+    public int AddLowSpeedCount()
     {
-        public bool SingleSegment { get; set; } = false;
-        public long NowSpeed { get; set; } = 0L; //当前每秒速度
-        public long SpeedLimit { get; set; } = long.MaxValue; //限速设置
-        public long? ResponseLength { get; set; }
-        public long RDownloaded { get => _Rdownloaded; }
-        private int _zeroSpeedCount = 0;
-        public int LowSpeedCount { get => _zeroSpeedCount; }
-        public bool ShouldStop { get => LowSpeedCount >= 20; }
+        return Interlocked.Add(ref _zeroSpeedCount, 1);
+    }
 
-        ///////////////////////////////////////////////////
+    public int ResetLowSpeedCount()
+    {
+        return Interlocked.Exchange(ref _zeroSpeedCount, 0);
+    }
 
-        private long _downloaded = 0;
-        private long _Rdownloaded = 0;
-        public long Downloaded { get => _downloaded; }
+    public long Add(long size)
+    {
+        Interlocked.Add(ref _Rdownloaded, size);
+        return Interlocked.Add(ref _downloaded, size);
+    }
 
-        public int AddLowSpeedCount()
-        {
-            return Interlocked.Add(ref _zeroSpeedCount, 1);
-        }
+    public void Reset()
+    {
+        Interlocked.Exchange(ref _downloaded, 0);
+    }
 
-        public int ResetLowSpeedCount()
-        {
-            return Interlocked.Exchange(ref _zeroSpeedCount, 0);
-        }
-
-        public long Add(long size)
-        {
-            Interlocked.Add(ref _Rdownloaded, size);
-            return Interlocked.Add(ref _downloaded, size);
-        }
-
-        public void Reset()
-        {
-            Interlocked.Exchange(ref _downloaded, 0);
-        }
-
-        public void ResetVars()
-        {
-            Reset();
-            ResetLowSpeedCount();
-            SingleSegment = false;
-            ResponseLength = null;
-            _Rdownloaded = 0L;
-        }
+    public void ResetVars()
+    {
+        Reset();
+        ResetLowSpeedCount();
+        SingleSegment = false;
+        ResponseLength = null;
+        _Rdownloaded = 0L;
     }
 }

src/N_m3u8DL-RE/Entity/StreamFilter.cs

@@ -1,56 +1,51 @@
 using N_m3u8DL_RE.Common.Enum;
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Entity
+namespace N_m3u8DL_RE.Entity;
+
+public class StreamFilter
 {
-    public class StreamFilter
+    public Regex? GroupIdReg { get; set; }
+    public Regex? LanguageReg { get; set; }
+    public Regex? NameReg { get; set; }
+    public Regex? CodecsReg { get; set; }
+    public Regex? ResolutionReg { get; set; }
+    public Regex? FrameRateReg { get; set; }
+    public Regex? ChannelsReg { get; set; }
+    public Regex? VideoRangeReg { get; set; }
+    public Regex? UrlReg { get; set; }
+    public long? SegmentsMinCount { get; set; }
+    public long? SegmentsMaxCount { get; set; }
+    public double? PlaylistMinDur {  get; set; }
+    public double? PlaylistMaxDur {  get; set; }
+    public int? BandwidthMin { get; set; }
+    public int? BandwidthMax { get; set; }
+    public RoleType? Role { get; set; }
+
+    public string For { get; set; } = "best";
+
+    public override string? ToString()
     {
-        public Regex? GroupIdReg { get; set; }
-        public Regex? LanguageReg { get; set; }
-        public Regex? NameReg { get; set; }
-        public Regex? CodecsReg { get; set; }
-        public Regex? ResolutionReg { get; set; }
-        public Regex? FrameRateReg { get; set; }
-        public Regex? ChannelsReg { get; set; }
-        public Regex? VideoRangeReg { get; set; }
-        public Regex? UrlReg { get; set; }
-        public long? SegmentsMinCount { get; set; }
-        public long? SegmentsMaxCount { get; set; }
-        public double? PlaylistMinDur {  get; set; }
-        public double? PlaylistMaxDur {  get; set; }
-        public int? BandwidthMin { get; set; }
-        public int? BandwidthMax { get; set; }
-        public RoleType? Role { get; set; }
+        var sb = new StringBuilder();
 
-        public string For { get; set; } = "best";
+        if (GroupIdReg != null) sb.Append($"GroupIdReg: {GroupIdReg} ");
+        if (LanguageReg != null) sb.Append($"LanguageReg: {LanguageReg} ");
+        if (NameReg != null) sb.Append($"NameReg: {NameReg} ");
+        if (CodecsReg != null) sb.Append($"CodecsReg: {CodecsReg} ");
+        if (ResolutionReg != null) sb.Append($"ResolutionReg: {ResolutionReg} ");
+        if (FrameRateReg != null) sb.Append($"FrameRateReg: {FrameRateReg} ");
+        if (ChannelsReg != null) sb.Append($"ChannelsReg: {ChannelsReg} ");
+        if (VideoRangeReg != null) sb.Append($"VideoRangeReg: {VideoRangeReg} ");
+        if (UrlReg != null) sb.Append($"UrlReg: {UrlReg} ");
+        if (SegmentsMinCount != null) sb.Append($"SegmentsMinCount: {SegmentsMinCount} ");
+        if (SegmentsMaxCount != null) sb.Append($"SegmentsMaxCount: {SegmentsMaxCount} ");
+        if (PlaylistMinDur != null) sb.Append($"PlaylistMinDur: {PlaylistMinDur} ");
+        if (PlaylistMaxDur != null) sb.Append($"PlaylistMaxDur: {PlaylistMaxDur} ");
+        if (BandwidthMin != null) sb.Append($"{nameof(BandwidthMin)}: {BandwidthMin} ");
+        if (BandwidthMax != null) sb.Append($"{nameof(BandwidthMax)}: {BandwidthMax} ");
+        if (Role.HasValue) sb.Append($"Role: {Role} ");
 
-        public override string? ToString()
-        {
-            var sb = new StringBuilder();
-
-            if (GroupIdReg != null) sb.Append($"GroupIdReg: {GroupIdReg} ");
-            if (LanguageReg != null) sb.Append($"LanguageReg: {LanguageReg} ");
-            if (NameReg != null) sb.Append($"NameReg: {NameReg} ");
-            if (CodecsReg != null) sb.Append($"CodecsReg: {CodecsReg} ");
-            if (ResolutionReg != null) sb.Append($"ResolutionReg: {ResolutionReg} ");
-            if (FrameRateReg != null) sb.Append($"FrameRateReg: {FrameRateReg} ");
-            if (ChannelsReg != null) sb.Append($"ChannelsReg: {ChannelsReg} ");
-            if (VideoRangeReg != null) sb.Append($"VideoRangeReg: {VideoRangeReg} ");
-            if (UrlReg != null) sb.Append($"UrlReg: {UrlReg} ");
-            if (SegmentsMinCount != null) sb.Append($"SegmentsMinCount: {SegmentsMinCount} ");
-            if (SegmentsMaxCount != null) sb.Append($"SegmentsMaxCount: {SegmentsMaxCount} ");
-            if (PlaylistMinDur != null) sb.Append($"PlaylistMinDur: {PlaylistMinDur} ");
-            if (PlaylistMaxDur != null) sb.Append($"PlaylistMaxDur: {PlaylistMaxDur} ");
-            if (BandwidthMin != null) sb.Append($"{nameof(BandwidthMin)}: {BandwidthMin} ");
-            if (BandwidthMax != null) sb.Append($"{nameof(BandwidthMax)}: {BandwidthMax} ");
-            if (Role.HasValue) sb.Append($"Role: {Role} ");
-
-            return sb.ToString() + $"For: {For}";
-        }
+        return sb + $"For: {For}";
     }
 }

src/N_m3u8DL-RE/Enum/DecryptEngine.cs

@@ -0,0 +1,8 @@
+namespace N_m3u8DL_RE.Enum;
+
+internal enum DecryptEngine
+{
+    MP4DECRYPT,
+    SHAKA_PACKAGER,
+    FFMPEG,
+}

src/N_m3u8DL-RE/Enum/MuxFormat.cs

@@ -0,0 +1,8 @@
+namespace N_m3u8DL_RE.Enum;
+
+internal enum MuxFormat
+{
+    MP4,
+    MKV,
+    TS,
+}

src/N_m3u8DL-RE/Enum/SubtitleFormat.cs

@@ -1,14 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Enum;
 
-namespace N_m3u8DL_RE.Enum
+internal enum SubtitleFormat
 {
-    internal enum SubtitleFormat
-    {
-        VTT,
-        SRT
-    }
+    VTT,
+    SRT
 }

src/N_m3u8DL-RE/N_m3u8DL-RE.csproj

@@ -2,13 +2,13 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-	<TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>N_m3u8DL_RE</RootNamespace>
     <ImplicitUsings>enable</ImplicitUsings>
-	<LangVersion>preview</LangVersion>
+    <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>
-	<Version>0.2.1</Version>
-	<Platforms>AnyCPU;x64</Platforms>
+    <Version>0.3.0</Version>
+    <Platforms>AnyCPU;x64</Platforms>
   </PropertyGroup>
 
   <ItemGroup>
@@ -16,7 +16,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="NiL.JS" Version="2.5.1600" />
+    <PackageReference Include="NiL.JS" Version="2.5.1684" />
     <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
   </ItemGroup>
 

src/N_m3u8DL-RE/Processor/DemoProcessor.cs

@@ -2,26 +2,20 @@
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Parser.Processor;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Processor
+namespace N_m3u8DL_RE.Processor;
+
+internal class DemoProcessor : ContentProcessor
 {
-    internal class DemoProcessor : ContentProcessor
+
+    public override bool CanProcess(ExtractorType extractorType, string rawText, ParserConfig parserConfig)
     {
+        return extractorType == ExtractorType.MPEG_DASH && parserConfig.Url.Contains("bitmovin");
+    }
 
-        public override bool CanProcess(ExtractorType extractorType, string rawText, ParserConfig parserConfig)
-        {
-            return extractorType == ExtractorType.MPEG_DASH && parserConfig.Url.Contains("bitmovin");
-        }
-
-        public override string Process(string rawText, ParserConfig parserConfig)
-        {
-            Logger.InfoMarkUp("[red]Match bitmovin![/]");
-            return rawText;
-        }
+    public override string Process(string rawText, ParserConfig parserConfig)
+    {
+        Logger.InfoMarkUp("[red]Match bitmovin![/]");
+        return rawText;
     }
 }

src/N_m3u8DL-RE/Processor/DemoProcessor2.cs

@@ -5,27 +5,21 @@ using N_m3u8DL_RE.Common.Util;
 using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Parser.Processor;
 using N_m3u8DL_RE.Parser.Processor.HLS;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Processor
+namespace N_m3u8DL_RE.Processor;
+
+internal class DemoProcessor2 : KeyProcessor
 {
-    internal class DemoProcessor2 : KeyProcessor
+    public override bool CanProcess(ExtractorType extractorType, string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig)
     {
-        public override bool CanProcess(ExtractorType extractorType, string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig)
-        {
-            return extractorType == ExtractorType.HLS  && parserConfig.Url.Contains("playertest.longtailvideo.com");
-        }
+        return extractorType == ExtractorType.HLS  && parserConfig.Url.Contains("playertest.longtailvideo.com");
+    }
 
-        public override EncryptInfo Process(string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig)
-        {
-            Logger.InfoMarkUp($"[white on green]My Key Processor => {keyLine}[/]");
-            var info = new DefaultHLSKeyProcessor().Process(keyLine, m3u8Url, m3u8Content, parserConfig);
-            Logger.InfoMarkUp("[red]" + HexUtil.BytesToHex(info.Key!, " ") + "[/]");
-            return info;
-        }
+    public override EncryptInfo Process(string keyLine, string m3u8Url, string m3u8Content, ParserConfig parserConfig)
+    {
+        Logger.InfoMarkUp($"[white on green]My Key Processor => {keyLine}[/]");
+        var info = new DefaultHLSKeyProcessor().Process(keyLine, m3u8Url, m3u8Content, parserConfig);
+        Logger.InfoMarkUp("[red]" + HexUtil.BytesToHex(info.Key!, " ") + "[/]");
+        return info;
     }
 }

src/N_m3u8DL-RE/Processor/NowehoryzontyUrlProcessor.cs

@@ -6,219 +6,211 @@ using N_m3u8DL_RE.Parser.Util;
 using NiL.JS.BaseLibrary;
 using NiL.JS.Core;
 using NiL.JS.Extensions;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Security.Cryptography;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Processor
+namespace N_m3u8DL_RE.Processor;
+
+// "https://1429754964.rsc.cdn77.org/r/nh22/2022/VNUS_DE_NYKE/19_07_22_2302_skt/h264.mpd?secure=mSvVfvuciJt9wufUyzuBnA==,1658505709774" --urlprocessor-args "nowehoryzonty:timeDifference=-2274,filminfo.secureToken=vx54axqjal4f0yy2"
+internal class NowehoryzontyUrlProcessor : UrlProcessor
 {
-    //"https://1429754964.rsc.cdn77.org/r/nh22/2022/VNUS_DE_NYKE/19_07_22_2302_skt/h264.mpd?secure=mSvVfvuciJt9wufUyzuBnA==,1658505709774" --urlprocessor-args "nowehoryzonty:timeDifference=-2274,filminfo.secureToken=vx54axqjal4f0yy2"
-    internal class NowehoryzontyUrlProcessor : UrlProcessor
+    private static string START = "nowehoryzonty:";
+    private static string? TimeDifferenceStr = null;
+    private static int? TimeDifference = null;
+    private static string? SecureToken = null;
+    private static bool LOG = false;
+    private static Function? Function = null;
+    public override bool CanProcess(ExtractorType extractorType, string oriUrl, ParserConfig parserConfig)
     {
-        private static string START = "nowehoryzonty:";
-        private static string? TimeDifferenceStr = null;
-        private static int? TimeDifference = null;
-        private static string? SecureToken = null;
-        private static bool LOG = false;
-        private static Function? Function = null;
-        public override bool CanProcess(ExtractorType extractorType, string oriUrl, ParserConfig parserConfig)
+        if (extractorType == ExtractorType.MPEG_DASH && parserConfig.UrlProcessorArgs != null && parserConfig.UrlProcessorArgs.StartsWith(START)) 
         {
-            if (extractorType == ExtractorType.MPEG_DASH && parserConfig.UrlProcessorArgs != null && parserConfig.UrlProcessorArgs.StartsWith(START)) 
+            if (!LOG)
             {
-                if (!LOG)
-                {
-                    Logger.WarnMarkUp($"[white on green]www.nowehoryzonty.pl[/] matched! waiting for calc...");
-                    LOG = true;
-                }
-                var context = new Context();
-                context.Eval(JS);
-                Function = context.GetVariable("md5").As<Function>();
-                var argLine = parserConfig.UrlProcessorArgs![START.Length..];
-                TimeDifferenceStr = ParserUtil.GetAttribute(argLine, "timeDifference");
-                SecureToken = ParserUtil.GetAttribute(argLine, "filminfo.secureToken");
-                if (TimeDifferenceStr != null && SecureToken != null)
-                {
-                    TimeDifference = Convert.ToInt32(TimeDifferenceStr);
-                }
-                return true;
+                Logger.WarnMarkUp($"[white on green]www.nowehoryzonty.pl[/] matched! waiting for calc...");
+                LOG = true;
             }
-            return false;
+            var context = new Context();
+            context.Eval(JS);
+            Function = context.GetVariable("md5").As<Function>();
+            var argLine = parserConfig.UrlProcessorArgs![START.Length..];
+            TimeDifferenceStr = ParserUtil.GetAttribute(argLine, "timeDifference");
+            SecureToken = ParserUtil.GetAttribute(argLine, "filminfo.secureToken");
+            if (TimeDifferenceStr != null && SecureToken != null)
+            {
+                TimeDifference = Convert.ToInt32(TimeDifferenceStr);
+            }
+            return true;
         }
-
-        public override string Process(string oriUrl, ParserConfig parserConfig)
-        {
-            var a = new Uri(oriUrl).AbsolutePath;
-            var n = oriUrl + "?secure=" + Calc(a);
-            return n;
-        }
-
-        private static string Calc(string a)
-        {
-            string returnStr = Function!.Call(new Arguments { a, SecureToken, TimeDifference }).ToString();
-            return returnStr;
-        }
-
-        ////https://www.nowehoryzonty.pl/packed/videonho.js?v=1114377281:formatted
-        private static readonly string JS = """
-            var p = function(f, e) {
-                var d = f[0]
-                  , a = f[1]
-                  , b = f[2]
-                  , c = f[3];
-                d = h(d, a, b, c, e[0], 7, -680876936);
-                c = h(c, d, a, b, e[1], 12, -389564586);
-                b = h(b, c, d, a, e[2], 17, 606105819);
-                a = h(a, b, c, d, e[3], 22, -1044525330);
-                d = h(d, a, b, c, e[4], 7, -176418897);
-                c = h(c, d, a, b, e[5], 12, 1200080426);
-                b = h(b, c, d, a, e[6], 17, -1473231341);
-                a = h(a, b, c, d, e[7], 22, -45705983);
-                d = h(d, a, b, c, e[8], 7, 1770035416);
-                c = h(c, d, a, b, e[9], 12, -1958414417);
-                b = h(b, c, d, a, e[10], 17, -42063);
-                a = h(a, b, c, d, e[11], 22, -1990404162);
-                d = h(d, a, b, c, e[12], 7, 1804603682);
-                c = h(c, d, a, b, e[13], 12, -40341101);
-                b = h(b, c, d, a, e[14], 17, -1502002290);
-                a = h(a, b, c, d, e[15], 22, 1236535329);
-                d = k(d, a, b, c, e[1], 5, -165796510);
-                c = k(c, d, a, b, e[6], 9, -1069501632);
-                b = k(b, c, d, a, e[11], 14, 643717713);
-                a = k(a, b, c, d, e[0], 20, -373897302);
-                d = k(d, a, b, c, e[5], 5, -701558691);
-                c = k(c, d, a, b, e[10], 9, 38016083);
-                b = k(b, c, d, a, e[15], 14, -660478335);
-                a = k(a, b, c, d, e[4], 20, -405537848);
-                d = k(d, a, b, c, e[9], 5, 568446438);
-                c = k(c, d, a, b, e[14], 9, -1019803690);
-                b = k(b, c, d, a, e[3], 14, -187363961);
-                a = k(a, b, c, d, e[8], 20, 1163531501);
-                d = k(d, a, b, c, e[13], 5, -1444681467);
-                c = k(c, d, a, b, e[2], 9, -51403784);
-                b = k(b, c, d, a, e[7], 14, 1735328473);
-                a = k(a, b, c, d, e[12], 20, -1926607734);
-                d = g(a ^ b ^ c, d, a, e[5], 4, -378558);
-                c = g(d ^ a ^ b, c, d, e[8], 11, -2022574463);
-                b = g(c ^ d ^ a, b, c, e[11], 16, 1839030562);
-                a = g(b ^ c ^ d, a, b, e[14], 23, -35309556);
-                d = g(a ^ b ^ c, d, a, e[1], 4, -1530992060);
-                c = g(d ^ a ^ b, c, d, e[4], 11, 1272893353);
-                b = g(c ^ d ^ a, b, c, e[7], 16, -155497632);
-                a = g(b ^ c ^ d, a, b, e[10], 23, -1094730640);
-                d = g(a ^ b ^ c, d, a, e[13], 4, 681279174);
-                c = g(d ^ a ^ b, c, d, e[0], 11, -358537222);
-                b = g(c ^ d ^ a, b, c, e[3], 16, -722521979);
-                a = g(b ^ c ^ d, a, b, e[6], 23, 76029189);
-                d = g(a ^ b ^ c, d, a, e[9], 4, -640364487);
-                c = g(d ^ a ^ b, c, d, e[12], 11, -421815835);
-                b = g(c ^ d ^ a, b, c, e[15], 16, 530742520);
-                a = g(b ^ c ^ d, a, b, e[2], 23, -995338651);
-                d = l(d, a, b, c, e[0], 6, -198630844);
-                c = l(c, d, a, b, e[7], 10, 1126891415);
-                b = l(b, c, d, a, e[14], 15, -1416354905);
-                a = l(a, b, c, d, e[5], 21, -57434055);
-                d = l(d, a, b, c, e[12], 6, 1700485571);
-                c = l(c, d, a, b, e[3], 10, -1894986606);
-                b = l(b, c, d, a, e[10], 15, -1051523);
-                a = l(a, b, c, d, e[1], 21, -2054922799);
-                d = l(d, a, b, c, e[8], 6, 1873313359);
-                c = l(c, d, a, b, e[15], 10, -30611744);
-                b = l(b, c, d, a, e[6], 15, -1560198380);
-                a = l(a, b, c, d, e[13], 21, 1309151649);
-                d = l(d, a, b, c, e[4], 6, -145523070);
-                c = l(c, d, a, b, e[11], 10, -1120210379);
-                b = l(b, c, d, a, e[2], 15, 718787259);
-                a = l(a, b, c, d, e[9], 21, -343485551);
-                f[0] = m(d, f[0]);
-                f[1] = m(a, f[1]);
-                f[2] = m(b, f[2]);
-                f[3] = m(c, f[3])
-            }, g = function(f, e, d, a, b, c) {
-                e = m(m(e, f), m(a, c));
-                return m(e << b | e >>> 32 - b, d)
-            }
-              , h = function(f, e, d, a, b, c, n) {
-                return g(e & d | ~e & a, f, e, b, c, n)
-            }
-              , k = function(f, e, d, a, b, c, n) {
-                return g(e & a | d & ~a, f, e, b, c, n)
-            }
-              , l = function(f, e, d, a, b, c, n) {
-                return g(d ^ (e | ~a), f, e, b, c, n)
-            }, r = "0123456789abcdef".split("");
-
-            var m = function(f, e) {
-                return f + e & 4294967295
-            };
-
-            var q = function(f) {
-                var e = f.length, d = [1732584193, -271733879, -1732584194, 271733878], a;
-                for (a = 64; a <= f.length; a += 64) {
-                    var b, c = f.substring(a - 64, a), g = [];
-                    for (b = 0; 64 > b; b += 4)
-                        g[b >> 2] = c.charCodeAt(b) + (c.charCodeAt(b + 1) << 8) + (c.charCodeAt(b + 2) << 16) + (c.charCodeAt(b + 3) << 24);
-                    p(d, g)
-                }
-                f = f.substring(a - 64);
-                b = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
-                for (a = 0; a < f.length; a++)
-                    b[a >> 2] |= f.charCodeAt(a) << (a % 4 << 3);
-                b[a >> 2] |= 128 << (a % 4 << 3);
-                if (55 < a)
-                    for (p(d, b),
-                    a = 0; 16 > a; a++)
-                        b[a] = 0;
-                b[14] = 8 * e;
-                p(d, b);
-                return d
-            };
-
-            var md5 = function(f, e, timeDifference) {
-                var d = Date.now() + 6E4 + timeDifference;
-                e = q(d + f + e);
-                f = [];
-                for (var a = 0; a < e.length; a++) {
-                    var b = e[a];
-                    var c = []
-                      , g = 4;
-                    do
-                        c[--g] = b & 255,
-                        b >>= 8;
-                    while (g);
-                    b = c;
-                    for (c = b.length - 1; 0 <= c; c--)
-                        f.push(b[c])
-                }
-                g = void 0;
-                c = "";
-                for (e = a = b = 0; e < 4 * f.length / 3; g = b >> 2 * (++e & 3) & 63,
-                c += String.fromCharCode(g + 71 - (26 > g ? 6 : 52 > g ? 0 : 62 > g ? 75 : g ^ 63 ? 90 : 87)) + (75 == (e - 1) % 76 ? "\r\n" : ""))
-                    e & 3 ^ 3 && (b = b << 8 ^ f[a++]);
-                for (; e++ & 3; )
-                    c += "\x3d";
-                return c.replace(/\+/g, "-").replace(/\//g, "_") + "," + d
-            };
-
-            "5d41402abc4b2a76b9719d911017c592" != function(f) {
-                for (var e = 0; e < f.length; e++) {
-                    for (var d = e, a = f[e], b = "", c = 0; 4 > c; c++)
-                        b += r[a >> 8 * c + 4 & 15] + r[a >> 8 * c & 15];
-                    f[d] = b
-                }
-                return f.join("")
-            }(q("hello")) && (m = function(f, e) {
-                var d = (f & 65535) + (e & 65535);
-                return (f >> 16) + (e >> 16) + (d >> 16) << 16 | d & 65535
-            }
-            )
-
-            //console.log(md5('/r/nh22/2022/VNUS_DE_NYKE/19_07_22_2302_skt/h264.mpd','vx54axqjal4f0yy2',-2274));
-            //console.log(md5('/r/nh22/2022/VNUS_DE_NYKE/19_07_22_2302_skt/subtitle_pl/34.m4s','vx54axqjal4f0yy2',-2274));
-            
-            """;
+        return false;
     }
+
+    public override string Process(string oriUrl, ParserConfig parserConfig)
+    {
+        var a = new Uri(oriUrl).AbsolutePath;
+        var n = oriUrl + "?secure=" + Calc(a);
+        return n;
+    }
+
+    private static string Calc(string a)
+    {
+        string returnStr = Function!.Call(new Arguments { a, SecureToken, TimeDifference }).ToString();
+        return returnStr;
+    }
+
+    ////https://www.nowehoryzonty.pl/packed/videonho.js?v=1114377281:formatted
+    private static readonly string JS = """
+                                        var p = function(f, e) {
+                                            var d = f[0]
+                                              , a = f[1]
+                                              , b = f[2]
+                                              , c = f[3];
+                                            d = h(d, a, b, c, e[0], 7, -680876936);
+                                            c = h(c, d, a, b, e[1], 12, -389564586);
+                                            b = h(b, c, d, a, e[2], 17, 606105819);
+                                            a = h(a, b, c, d, e[3], 22, -1044525330);
+                                            d = h(d, a, b, c, e[4], 7, -176418897);
+                                            c = h(c, d, a, b, e[5], 12, 1200080426);
+                                            b = h(b, c, d, a, e[6], 17, -1473231341);
+                                            a = h(a, b, c, d, e[7], 22, -45705983);
+                                            d = h(d, a, b, c, e[8], 7, 1770035416);
+                                            c = h(c, d, a, b, e[9], 12, -1958414417);
+                                            b = h(b, c, d, a, e[10], 17, -42063);
+                                            a = h(a, b, c, d, e[11], 22, -1990404162);
+                                            d = h(d, a, b, c, e[12], 7, 1804603682);
+                                            c = h(c, d, a, b, e[13], 12, -40341101);
+                                            b = h(b, c, d, a, e[14], 17, -1502002290);
+                                            a = h(a, b, c, d, e[15], 22, 1236535329);
+                                            d = k(d, a, b, c, e[1], 5, -165796510);
+                                            c = k(c, d, a, b, e[6], 9, -1069501632);
+                                            b = k(b, c, d, a, e[11], 14, 643717713);
+                                            a = k(a, b, c, d, e[0], 20, -373897302);
+                                            d = k(d, a, b, c, e[5], 5, -701558691);
+                                            c = k(c, d, a, b, e[10], 9, 38016083);
+                                            b = k(b, c, d, a, e[15], 14, -660478335);
+                                            a = k(a, b, c, d, e[4], 20, -405537848);
+                                            d = k(d, a, b, c, e[9], 5, 568446438);
+                                            c = k(c, d, a, b, e[14], 9, -1019803690);
+                                            b = k(b, c, d, a, e[3], 14, -187363961);
+                                            a = k(a, b, c, d, e[8], 20, 1163531501);
+                                            d = k(d, a, b, c, e[13], 5, -1444681467);
+                                            c = k(c, d, a, b, e[2], 9, -51403784);
+                                            b = k(b, c, d, a, e[7], 14, 1735328473);
+                                            a = k(a, b, c, d, e[12], 20, -1926607734);
+                                            d = g(a ^ b ^ c, d, a, e[5], 4, -378558);
+                                            c = g(d ^ a ^ b, c, d, e[8], 11, -2022574463);
+                                            b = g(c ^ d ^ a, b, c, e[11], 16, 1839030562);
+                                            a = g(b ^ c ^ d, a, b, e[14], 23, -35309556);
+                                            d = g(a ^ b ^ c, d, a, e[1], 4, -1530992060);
+                                            c = g(d ^ a ^ b, c, d, e[4], 11, 1272893353);
+                                            b = g(c ^ d ^ a, b, c, e[7], 16, -155497632);
+                                            a = g(b ^ c ^ d, a, b, e[10], 23, -1094730640);
+                                            d = g(a ^ b ^ c, d, a, e[13], 4, 681279174);
+                                            c = g(d ^ a ^ b, c, d, e[0], 11, -358537222);
+                                            b = g(c ^ d ^ a, b, c, e[3], 16, -722521979);
+                                            a = g(b ^ c ^ d, a, b, e[6], 23, 76029189);
+                                            d = g(a ^ b ^ c, d, a, e[9], 4, -640364487);
+                                            c = g(d ^ a ^ b, c, d, e[12], 11, -421815835);
+                                            b = g(c ^ d ^ a, b, c, e[15], 16, 530742520);
+                                            a = g(b ^ c ^ d, a, b, e[2], 23, -995338651);
+                                            d = l(d, a, b, c, e[0], 6, -198630844);
+                                            c = l(c, d, a, b, e[7], 10, 1126891415);
+                                            b = l(b, c, d, a, e[14], 15, -1416354905);
+                                            a = l(a, b, c, d, e[5], 21, -57434055);
+                                            d = l(d, a, b, c, e[12], 6, 1700485571);
+                                            c = l(c, d, a, b, e[3], 10, -1894986606);
+                                            b = l(b, c, d, a, e[10], 15, -1051523);
+                                            a = l(a, b, c, d, e[1], 21, -2054922799);
+                                            d = l(d, a, b, c, e[8], 6, 1873313359);
+                                            c = l(c, d, a, b, e[15], 10, -30611744);
+                                            b = l(b, c, d, a, e[6], 15, -1560198380);
+                                            a = l(a, b, c, d, e[13], 21, 1309151649);
+                                            d = l(d, a, b, c, e[4], 6, -145523070);
+                                            c = l(c, d, a, b, e[11], 10, -1120210379);
+                                            b = l(b, c, d, a, e[2], 15, 718787259);
+                                            a = l(a, b, c, d, e[9], 21, -343485551);
+                                            f[0] = m(d, f[0]);
+                                            f[1] = m(a, f[1]);
+                                            f[2] = m(b, f[2]);
+                                            f[3] = m(c, f[3])
+                                        }, g = function(f, e, d, a, b, c) {
+                                            e = m(m(e, f), m(a, c));
+                                            return m(e << b | e >>> 32 - b, d)
+                                        }
+                                          , h = function(f, e, d, a, b, c, n) {
+                                            return g(e & d | ~e & a, f, e, b, c, n)
+                                        }
+                                          , k = function(f, e, d, a, b, c, n) {
+                                            return g(e & a | d & ~a, f, e, b, c, n)
+                                        }
+                                          , l = function(f, e, d, a, b, c, n) {
+                                            return g(d ^ (e | ~a), f, e, b, c, n)
+                                        }, r = "0123456789abcdef".split("");
+
+                                        var m = function(f, e) {
+                                            return f + e & 4294967295
+                                        };
+
+                                        var q = function(f) {
+                                            var e = f.length, d = [1732584193, -271733879, -1732584194, 271733878], a;
+                                            for (a = 64; a <= f.length; a += 64) {
+                                                var b, c = f.substring(a - 64, a), g = [];
+                                                for (b = 0; 64 > b; b += 4)
+                                                    g[b >> 2] = c.charCodeAt(b) + (c.charCodeAt(b + 1) << 8) + (c.charCodeAt(b + 2) << 16) + (c.charCodeAt(b + 3) << 24);
+                                                p(d, g)
+                                            }
+                                            f = f.substring(a - 64);
+                                            b = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
+                                            for (a = 0; a < f.length; a++)
+                                                b[a >> 2] |= f.charCodeAt(a) << (a % 4 << 3);
+                                            b[a >> 2] |= 128 << (a % 4 << 3);
+                                            if (55 < a)
+                                                for (p(d, b),
+                                                a = 0; 16 > a; a++)
+                                                    b[a] = 0;
+                                            b[14] = 8 * e;
+                                            p(d, b);
+                                            return d
+                                        };
+
+                                        var md5 = function(f, e, timeDifference) {
+                                            var d = Date.now() + 6E4 + timeDifference;
+                                            e = q(d + f + e);
+                                            f = [];
+                                            for (var a = 0; a < e.length; a++) {
+                                                var b = e[a];
+                                                var c = []
+                                                  , g = 4;
+                                                do
+                                                    c[--g] = b & 255,
+                                                    b >>= 8;
+                                                while (g);
+                                                b = c;
+                                                for (c = b.length - 1; 0 <= c; c--)
+                                                    f.push(b[c])
+                                            }
+                                            g = void 0;
+                                            c = "";
+                                            for (e = a = b = 0; e < 4 * f.length / 3; g = b >> 2 * (++e & 3) & 63,
+                                            c += String.fromCharCode(g + 71 - (26 > g ? 6 : 52 > g ? 0 : 62 > g ? 75 : g ^ 63 ? 90 : 87)) + (75 == (e - 1) % 76 ? "\r\n" : ""))
+                                                e & 3 ^ 3 && (b = b << 8 ^ f[a++]);
+                                            for (; e++ & 3; )
+                                                c += "\x3d";
+                                            return c.replace(/\+/g, "-").replace(/\//g, "_") + "," + d
+                                        };
+
+                                        "5d41402abc4b2a76b9719d911017c592" != function(f) {
+                                            for (var e = 0; e < f.length; e++) {
+                                                for (var d = e, a = f[e], b = "", c = 0; 4 > c; c++)
+                                                    b += r[a >> 8 * c + 4 & 15] + r[a >> 8 * c & 15];
+                                                f[d] = b
+                                            }
+                                            return f.join("")
+                                        }(q("hello")) && (m = function(f, e) {
+                                            var d = (f & 65535) + (e & 65535);
+                                            return (f >> 16) + (e >> 16) + (d >> 16) << 16 | d & 65535
+                                        }
+                                        )
+
+                                        //console.log(md5('/r/nh22/2022/VNUS_DE_NYKE/19_07_22_2302_skt/h264.mpd','vx54axqjal4f0yy2',-2274));
+                                        //console.log(md5('/r/nh22/2022/VNUS_DE_NYKE/19_07_22_2302_skt/subtitle_pl/34.m4s','vx54axqjal4f0yy2',-2274));
+
+                                        """;
 }

src/N_m3u8DL-RE/Program.cs

@@ -1,11 +1,11 @@
-using N_m3u8DL_RE.Parser.Config;
+using System.Globalization;
+using N_m3u8DL_RE.Parser.Config;
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Common.Enum;
 using N_m3u8DL_RE.Parser;
 using Spectre.Console;
 using N_m3u8DL_RE.Common.Resource;
 using N_m3u8DL_RE.Common.Log;
-using System.Globalization;
 using System.Text;
 using N_m3u8DL_RE.Common.Util;
 using N_m3u8DL_RE.Processor;
@@ -14,439 +14,469 @@ using N_m3u8DL_RE.Util;
 using N_m3u8DL_RE.DownloadManager;
 using N_m3u8DL_RE.CommandLine;
 using System.Net;
-using System.Net.Http.Headers;
+using N_m3u8DL_RE.Enum;
 
-namespace N_m3u8DL_RE
+namespace N_m3u8DL_RE;
+
+internal class Program
 {
-    internal class Program
+    static async Task Main(string[] args)
     {
-        static async Task Main(string[] args)
+        // 处理NT6.0及以下System.CommandLine报错CultureNotFound问题
+        if (OperatingSystem.IsWindows()) 
         {
-            Console.CancelKeyPress += Console_CancelKeyPress;
-            ServicePointManager.DefaultConnectionLimit = 1024;
-            try { Console.CursorVisible = true; } catch { }
-
-            string loc = "en-US";
-            string currLoc = Thread.CurrentThread.CurrentUICulture.Name;
-            if (currLoc == "zh-CN" || currLoc == "zh-SG") loc = "zh-CN";
-            else if (currLoc.StartsWith("zh-")) loc = "zh-TW";
-
-            //处理用户-h等请求
-            var index = -1;
-            var list = new List<string>(args);
-            if ((index = list.IndexOf("--ui-language")) != -1 && list.Count > index + 1 && new List<string> { "en-US", "zh-CN", "zh-TW" }.Contains(list[index + 1]))
+            var osVersion = Environment.OSVersion.Version;
+            if (osVersion.Major < 6 || osVersion is { Major: 6, Minor: 0 })
             {
-                loc = list[index + 1];
+                Environment.SetEnvironmentVariable("DOTNET_SYSTEM_GLOBALIZATION_INVARIANT", "1");
             }
+        }
         
+        Console.CancelKeyPress += Console_CancelKeyPress;
+        ServicePointManager.DefaultConnectionLimit = 1024;
+        try { Console.CursorVisible = true; } catch { }
+
+        string loc = ResString.CurrentLoc;
+        string currLoc = Thread.CurrentThread.CurrentUICulture.Name;
+        if (currLoc is "zh-CN" or "zh-SG") loc = "zh-CN";
+        else if (currLoc.StartsWith("zh-")) loc = "zh-TW";
+
+        // 处理用户-h等请求
+        var index = -1;
+        var list = new List<string>(args);
+        if ((index = list.IndexOf("--ui-language")) != -1 && list.Count > index + 1 && new List<string> { "en-US", "zh-CN", "zh-TW" }.Contains(list[index + 1]))
+        {
+            loc = list[index + 1];
+        }
+        
+        ResString.CurrentLoc = loc;
+
+        try
+        {
             CultureInfo.DefaultThreadCurrentCulture = new CultureInfo(loc);
             Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo(loc);
             Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo(loc);
-
-
-            await CommandInvoker.InvokeArgs(args, DoWorkAsync);
+        }
+        catch 
+        {
+            // Culture not work on NT6.0, so catch the exception
         }
 
-        private static void Console_CancelKeyPress(object? sender, ConsoleCancelEventArgs e)
+        await CommandInvoker.InvokeArgs(args, DoWorkAsync);
+    }
+
+    private static void Console_CancelKeyPress(object? sender, ConsoleCancelEventArgs e)
+    {
+        Logger.WarnMarkUp("Force Exit...");
+        try 
         { 
-            Logger.WarnMarkUp("Force Exit...");
-            try 
-            { 
-                Console.CursorVisible = true;
-                if (!OperatingSystem.IsWindows())
-                    System.Diagnostics.Process.Start("stty", "echo");
-            } catch { }
-            Environment.Exit(0);
+            Console.CursorVisible = true;
+            if (!OperatingSystem.IsWindows())
+                System.Diagnostics.Process.Start("tput", "cnorm");
+        } catch { }
+        Environment.Exit(0);
+    }
+
+    static int GetOrder(StreamSpec streamSpec)
+    {
+        if (streamSpec.Channels == null) return 0;
+            
+        var str = streamSpec.Channels.Split('/')[0];
+        return int.TryParse(str, out var order) ? order : 0;
+    }
+
+    static async Task DoWorkAsync(MyOption option)
+    {
+        HTTPUtil.AppHttpClient.Timeout = TimeSpan.FromSeconds(option.HttpRequestTimeout);
+        if (Console.IsOutputRedirected || Console.IsErrorRedirected)
+        {
+            option.ForceAnsiConsole = true;
+            option.NoAnsiColor = true;
+            Logger.Info(ResString.consoleRedirected);
+        }
+        CustomAnsiConsole.InitConsole(option.ForceAnsiConsole, option.NoAnsiColor);
+        
+        // 检测更新
+        if (!option.DisableUpdateCheck)
+            _ = CheckUpdateAsync();
+
+        Logger.IsWriteFile = !option.NoLog;
+        Logger.InitLogFile();
+        Logger.LogLevel = option.LogLevel;
+        Logger.Info(CommandInvoker.VERSION_INFO);
+
+        if (option.UseSystemProxy == false)
+        {
+            HTTPUtil.HttpClientHandler.UseProxy = false;
         }
 
-        static int GetOrder(StreamSpec streamSpec)
+        if (option.CustomProxy != null)
         {
-            if (streamSpec.Channels == null) return 0;
-            
-            var str = streamSpec.Channels.Split('/')[0];
-            return int.TryParse(str, out var order) ? order : 0;
+            HTTPUtil.HttpClientHandler.Proxy = option.CustomProxy;
+            HTTPUtil.HttpClientHandler.UseProxy = true;
         }
 
-        static async Task DoWorkAsync(MyOption option)
+        // 检查互斥的选项
+        if (option is { MuxAfterDone: false, MuxImports.Count: > 0 })
         {
+            throw new ArgumentException("MuxAfterDone disabled, MuxImports not allowed!");
+        }
 
-            if (Console.IsOutputRedirected || Console.IsErrorRedirected)
+        if (option.UseShakaPackager) 
+        {
+            option.DecryptionEngine = DecryptEngine.SHAKA_PACKAGER;
+        }
+
+        // LivePipeMux开启时 LiveRealTimeMerge必须开启
+        if (option is { LivePipeMux: true, LiveRealTimeMerge: false })
+        {
+            Logger.WarnMarkUp("LivePipeMux detected, forced enable LiveRealTimeMerge");
+            option.LiveRealTimeMerge = true;
+        }
+
+        // 预先检查ffmpeg
+        option.FFmpegBinaryPath ??= GlobalUtil.FindExecutable("ffmpeg");
+
+        if (string.IsNullOrEmpty(option.FFmpegBinaryPath) || !File.Exists(option.FFmpegBinaryPath))
+        {
+            throw new FileNotFoundException(ResString.ffmpegNotFound);
+        }
+
+        Logger.Extra($"ffmpeg => {option.FFmpegBinaryPath}");
+
+        // 预先检查mkvmerge
+        if (option is { MuxOptions.UseMkvmerge: true, MuxAfterDone: true })
+        {
+            option.MkvmergeBinaryPath ??= GlobalUtil.FindExecutable("mkvmerge");
+            if (string.IsNullOrEmpty(option.MkvmergeBinaryPath) || !File.Exists(option.MkvmergeBinaryPath))
             {
-                option.ForceAnsiConsole = true;
-                option.NoAnsiColor = true;
-                Logger.Info(ResString.consoleRedirected);
+                throw new FileNotFoundException(ResString.mkvmergeNotFound);
             }
-            CustomAnsiConsole.InitConsole(option.ForceAnsiConsole, option.NoAnsiColor);
-            //检测更新
-            CheckUpdateAsync();
+            Logger.Extra($"mkvmerge => {option.MkvmergeBinaryPath}");
+        }
 
-            Logger.IsWriteFile = !option.NoLog;
-            Logger.InitLogFile();
-            Logger.LogLevel = option.LogLevel;
-            Logger.Info(CommandInvoker.VERSION_INFO);
-
-            if (option.UseSystemProxy == false)
+        // 预先检查
+        if (option.Keys is { Length: > 0 } || option.KeyTextFile != null)
+        {
+            if (!string.IsNullOrEmpty(option.DecryptionBinaryPath) && !File.Exists(option.DecryptionBinaryPath))
             {
-                HTTPUtil.HttpClientHandler.UseProxy = false;
+                throw new FileNotFoundException(option.DecryptionBinaryPath);
             }
-
-            if (option.CustomProxy != null)
+            switch (option.DecryptionEngine)
             {
-                HTTPUtil.HttpClientHandler.Proxy = option.CustomProxy;
-                HTTPUtil.HttpClientHandler.UseProxy = true;
-            }
-
-            //检查互斥的选项
-
-            if (!option.MuxAfterDone && option.MuxImports != null && option.MuxImports.Count > 0)
-            {
-                throw new ArgumentException("MuxAfterDone disabled, MuxImports not allowed!");
-            }
-
-            //LivePipeMux开启时 LiveRealTimeMerge必须开启
-            if (option.LivePipeMux && !option.LiveRealTimeMerge)
-            {
-                Logger.WarnMarkUp("LivePipeMux detected, forced enable LiveRealTimeMerge");
-                option.LiveRealTimeMerge = true;
-            }
-
-            //预先检查ffmpeg
-            if (option.FFmpegBinaryPath == null)
-                option.FFmpegBinaryPath = GlobalUtil.FindExecutable("ffmpeg");
-
-            if (string.IsNullOrEmpty(option.FFmpegBinaryPath) || !File.Exists(option.FFmpegBinaryPath))
-            {
-                throw new FileNotFoundException(ResString.ffmpegNotFound);
-            }
-
-            Logger.Extra($"ffmpeg => {option.FFmpegBinaryPath}");
-
-            //预先检查mkvmerge
-            if (option.MuxOptions != null && option.MuxOptions.UseMkvmerge && option.MuxAfterDone)
-            {
-                if (option.MkvmergeBinaryPath == null)
-                    option.MkvmergeBinaryPath = GlobalUtil.FindExecutable("mkvmerge");
-                if (string.IsNullOrEmpty(option.MkvmergeBinaryPath) || !File.Exists(option.MkvmergeBinaryPath))
+                case DecryptEngine.SHAKA_PACKAGER:
                 {
-                    throw new FileNotFoundException("mkvmerge not found");
+                    var file = GlobalUtil.FindExecutable("shaka-packager");
+                    var file2 = GlobalUtil.FindExecutable("packager-linux-x64");
+                    var file3 = GlobalUtil.FindExecutable("packager-osx-x64");
+                    var file4 = GlobalUtil.FindExecutable("packager-win-x64");
+                    if (file == null && file2 == null && file3 == null && file4 == null)
+                        throw new FileNotFoundException(ResString.shakaPackagerNotFound);
+                    option.DecryptionBinaryPath = file ?? file2 ?? file3 ?? file4;
+                    Logger.Extra($"shaka-packager => {option.DecryptionBinaryPath}");
+                    break;
                 }
-                Logger.Extra($"mkvmerge => {option.MkvmergeBinaryPath}");
-            }
-
-            //预先检查
-            if ((option.Keys != null && option.Keys.Length > 0) || option.KeyTextFile != null)
-            {
-                if (string.IsNullOrEmpty(option.DecryptionBinaryPath))
+                case DecryptEngine.MP4DECRYPT:
                 {
-                    if (option.UseShakaPackager)
-                    {
-                        var file = GlobalUtil.FindExecutable("shaka-packager");
-                        var file2 = GlobalUtil.FindExecutable("packager-linux-x64");
-                        var file3 = GlobalUtil.FindExecutable("packager-osx-x64");
-                        var file4 = GlobalUtil.FindExecutable("packager-win-x64");
-                        if (file == null && file2 == null && file3 == null && file4 == null) throw new FileNotFoundException("shaka-packager not found!");
-                        option.DecryptionBinaryPath = file ?? file2 ?? file3 ?? file4;
-                        Logger.Extra($"shaka-packager => {option.DecryptionBinaryPath}");
-                    }
-                    else
-                    {
-                        var file = GlobalUtil.FindExecutable("mp4decrypt");
-                        if (file == null) throw new FileNotFoundException("mp4decrypt not found!");
-                        option.DecryptionBinaryPath = file;
-                        Logger.Extra($"mp4decrypt => {option.DecryptionBinaryPath}");
-                    }
-                }
-                else if (!File.Exists(option.DecryptionBinaryPath))
-                {
-                    throw new FileNotFoundException(option.DecryptionBinaryPath);
+                    var file = GlobalUtil.FindExecutable("mp4decrypt");
+                    if (file == null) throw new FileNotFoundException(ResString.mp4decryptNotFound);
+                    option.DecryptionBinaryPath = file;
+                    Logger.Extra($"mp4decrypt => {option.DecryptionBinaryPath}");
+                    break;
                 }
+                case DecryptEngine.FFMPEG:
+                default:
+                    option.DecryptionBinaryPath = option.FFmpegBinaryPath;
+                    break;
             }
+        }
 
-            //默认的headers
-            var headers = new Dictionary<string, string>()
+        // 默认的headers
+        var headers = new Dictionary<string, string>()
+        {
+            ["user-agent"] = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"
+        };
+        // 添加或替换用户输入的headers
+        foreach (var item in option.Headers)
+        {
+            headers[item.Key] = item.Value;
+            Logger.Extra($"User-Defined Header => {item.Key}: {item.Value}");
+        }
+
+        var parserConfig = new ParserConfig()
+        {
+            AppendUrlParams = option.AppendUrlParams,
+            UrlProcessorArgs = option.UrlProcessorArgs,
+            BaseUrl = option.BaseUrl!,
+            Headers = headers,
+            CustomMethod = option.CustomHLSMethod,
+            CustomeKey = option.CustomHLSKey,
+            CustomeIV = option.CustomHLSIv,
+        };
+
+        if (option.AllowHlsMultiExtMap)
+        {
+            parserConfig.CustomParserArgs.Add("AllowHlsMultiExtMap", "true");
+        }
+
+        // demo1
+        parserConfig.ContentProcessors.Insert(0, new DemoProcessor());
+        // demo2
+        parserConfig.KeyProcessors.Insert(0, new DemoProcessor2());
+        // for www.nowehoryzonty.pl
+        parserConfig.UrlProcessors.Insert(0, new NowehoryzontyUrlProcessor());
+
+        // 等待任务开始时间
+        if (option.TaskStartAt != null && option.TaskStartAt > DateTime.Now)
+        {
+            Logger.InfoMarkUp(ResString.taskStartAt + option.TaskStartAt);
+            while (option.TaskStartAt > DateTime.Now)
             {
-                ["user-agent"] = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36"
-            };
-            //添加或替换用户输入的headers
-            foreach (var item in option.Headers)
-            {
-                headers[item.Key] = item.Value;
-                Logger.Extra($"User-Defined Header => {item.Key}: {item.Value}");
+                await Task.Delay(1000);
             }
+        }
 
-            var parserConfig = new ParserConfig()
+        var url = option.Input;
+
+        // 流提取器配置
+        var extractor = new StreamExtractor(parserConfig);
+        // 从链接加载内容
+        await RetryUtil.WebRequestRetryAsync(async () =>
+        {
+            await extractor.LoadSourceFromUrlAsync(url);
+            return true;
+        });
+        // 解析流信息
+        var streams = await extractor.ExtractStreamsAsync();
+
+
+        // 全部媒体
+        var lists = streams.OrderBy(p => p.MediaType).ThenByDescending(p => p.Bandwidth).ThenByDescending(GetOrder).ToList();
+        // 基本流
+        var basicStreams = lists.Where(x => x.MediaType is null or MediaType.VIDEO).ToList();
+        // 可选音频轨道
+        var audios = lists.Where(x => x.MediaType == MediaType.AUDIO).ToList();
+        // 可选字幕轨道
+        var subs = lists.Where(x => x.MediaType == MediaType.SUBTITLES).ToList();
+
+        // 尝试从URL或文件读取文件名
+        if (string.IsNullOrEmpty(option.SaveName))
+        {
+            option.SaveName = OtherUtil.GetFileNameFromInput(option.Input);
+        }
+
+        // 生成文件夹
+        var tmpDir = Path.Combine(option.TmpDir ?? Environment.CurrentDirectory, $"{option.SaveName ?? DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss")}");
+        // 记录文件
+        extractor.RawFiles["meta.json"] = GlobalUtil.ConvertToJson(lists);
+        // 写出文件
+        await WriteRawFilesAsync(option, extractor, tmpDir);
+
+        Logger.Info(ResString.streamsInfo, lists.Count, basicStreams.Count, audios.Count, subs.Count);
+
+        foreach (var item in lists)
+        {
+            Logger.InfoMarkUp(item.ToString());
+        }
+
+        var selectedStreams = new List<StreamSpec>();
+        if (option.DropVideoFilter != null || option.DropAudioFilter != null || option.DropSubtitleFilter != null)
+        {
+            basicStreams = FilterUtil.DoFilterDrop(basicStreams, option.DropVideoFilter);
+            audios = FilterUtil.DoFilterDrop(audios, option.DropAudioFilter);
+            subs = FilterUtil.DoFilterDrop(subs, option.DropSubtitleFilter);
+            lists = basicStreams.Concat(audios).Concat(subs).ToList();
+        }
+
+        if (option.DropVideoFilter != null) Logger.Extra($"DropVideoFilter => {option.DropVideoFilter}");
+        if (option.DropAudioFilter != null) Logger.Extra($"DropAudioFilter => {option.DropAudioFilter}");
+        if (option.DropSubtitleFilter != null) Logger.Extra($"DropSubtitleFilter => {option.DropSubtitleFilter}");
+        if (option.VideoFilter != null) Logger.Extra($"VideoFilter => {option.VideoFilter}");
+        if (option.AudioFilter != null) Logger.Extra($"AudioFilter => {option.AudioFilter}");
+        if (option.SubtitleFilter != null) Logger.Extra($"SubtitleFilter => {option.SubtitleFilter}");
+
+        if (option.AutoSelect)
+        {
+            if (basicStreams.Count != 0)
+                selectedStreams.Add(basicStreams.First());
+            var langs = audios.DistinctBy(a => a.Language).Select(a => a.Language);
+            foreach (var lang in langs)
             {
-                AppendUrlParams = option.AppendUrlParams,
-                UrlProcessorArgs = option.UrlProcessorArgs,
-                BaseUrl = option.BaseUrl!,
-                Headers = headers,
-                CustomMethod = option.CustomHLSMethod,
-                CustomeKey = option.CustomHLSKey,
-                CustomeIV = option.CustomHLSIv,
-            };
-
-            //demo1
-            parserConfig.ContentProcessors.Insert(0, new DemoProcessor());
-            //demo2
-            parserConfig.KeyProcessors.Insert(0, new DemoProcessor2());
-            //for www.nowehoryzonty.pl
-            parserConfig.UrlProcessors.Insert(0, new NowehoryzontyUrlProcessor());
-
-            //等待任务开始时间
-            if (option.TaskStartAt != null && option.TaskStartAt > DateTime.Now)
-            {
-                Logger.InfoMarkUp(ResString.taskStartAt + option.TaskStartAt);
-                while (option.TaskStartAt > DateTime.Now)
-                {
-                    await Task.Delay(1000);
-                }
+                selectedStreams.Add(audios.Where(a => a.Language == lang).OrderByDescending(a => a.Bandwidth).ThenByDescending(GetOrder).First());
             }
+            selectedStreams.AddRange(subs);
+        }
+        else if (option.SubOnly)
+        {
+            selectedStreams.AddRange(subs);
+        }
+        else if (option.VideoFilter != null || option.AudioFilter != null || option.SubtitleFilter != null)
+        {
+            basicStreams = FilterUtil.DoFilterKeep(basicStreams, option.VideoFilter);
+            audios = FilterUtil.DoFilterKeep(audios, option.AudioFilter);
+            subs = FilterUtil.DoFilterKeep(subs, option.SubtitleFilter);
+            selectedStreams = basicStreams.Concat(audios).Concat(subs).ToList();
+        }
+        else
+        {
+            // 展示交互式选择框
+            selectedStreams = FilterUtil.SelectStreams(lists);
+        }
 
-            var url = option.Input;
+        if (selectedStreams.Count == 0)
+            throw new Exception(ResString.noStreamsToDownload);
 
-            //流提取器配置
-            var extractor = new StreamExtractor(parserConfig);
-            // 从链接加载内容
-            await RetryUtil.WebRequestRetryAsync(async () =>
-            {
-                await extractor.LoadSourceFromUrlAsync(url);
-                return true;
-            });
-            //解析流信息
-            var streams = await extractor.ExtractStreamsAsync();
+        // HLS: 选中流中若有没加载出playlist的，加载playlist
+        // DASH/MSS: 加载playlist (调用url预处理器)
+        if (selectedStreams.Any(s => s.Playlist == null) || extractor.ExtractorType == ExtractorType.MPEG_DASH || extractor.ExtractorType == ExtractorType.MSS)
+            await extractor.FetchPlayListAsync(selectedStreams);
 
+        // 直播检测
+        var livingFlag = selectedStreams.Any(s => s.Playlist?.IsLive == true) && !option.LivePerformAsVod;
+        if (livingFlag)
+        {
+            Logger.WarnMarkUp($"[white on darkorange3_1]{ResString.liveFound}[/]");
+        }
 
-            //全部媒体
-            var lists = streams.OrderBy(p => p.MediaType).ThenByDescending(p => p.Bandwidth).ThenByDescending(GetOrder);
-            //基本流
-            var basicStreams = lists.Where(x => x.MediaType == null || x.MediaType == MediaType.VIDEO);
-            //可选音频轨道
-            var audios = lists.Where(x => x.MediaType == MediaType.AUDIO);
-            //可选字幕轨道
-            var subs = lists.Where(x => x.MediaType == MediaType.SUBTITLES);
+        // 无法识别的加密方式，自动开启二进制合并
+        if (selectedStreams.Any(s => s.Playlist!.MediaParts.Any(p => p.MediaSegments.Any(m => m.EncryptInfo.Method == EncryptMethod.UNKNOWN))))
+        {
+            Logger.WarnMarkUp($"[darkorange3_1]{ResString.autoBinaryMerge3}[/]");
+            option.BinaryMerge = true;
+        }
 
-            //尝试从URL或文件读取文件名
-            if (string.IsNullOrEmpty(option.SaveName))
-            {
-                option.SaveName = OtherUtil.GetFileNameFromInput(option.Input);
-            }
+        // 应用用户自定义的分片范围
+        if (!livingFlag)
+            FilterUtil.ApplyCustomRange(selectedStreams, option.CustomRange);
 
-            //生成文件夹
-            var tmpDir = Path.Combine(option.TmpDir ?? Environment.CurrentDirectory, $"{option.SaveName ?? DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss")}");
-            //记录文件
-            extractor.RawFiles["meta.json"] = GlobalUtil.ConvertToJson(lists);
-            //写出文件
-            await WriteRawFilesAsync(option, extractor, tmpDir);
+        // 应用用户自定义的广告分片关键字
+        FilterUtil.CleanAd(selectedStreams, option.AdKeywords);
 
-            Logger.Info(ResString.streamsInfo, lists.Count(), basicStreams.Count(), audios.Count(), subs.Count());
+        // 记录文件
+        extractor.RawFiles["meta_selected.json"] = GlobalUtil.ConvertToJson(selectedStreams);
 
-            foreach (var item in lists)
-            {
-                Logger.InfoMarkUp(item.ToString());
-            }
+        Logger.Info(ResString.selectedStream);
+        foreach (var item in selectedStreams)
+        {
+            Logger.InfoMarkUp(item.ToString());
+        }
 
-            var selectedStreams = new List<StreamSpec>();
-            if (option.DropVideoFilter != null || option.DropAudioFilter != null || option.DropSubtitleFilter != null)
-            {
-                basicStreams = FilterUtil.DoFilterDrop(basicStreams, option.DropVideoFilter);
-                audios = FilterUtil.DoFilterDrop(audios, option.DropAudioFilter);
-                subs = FilterUtil.DoFilterDrop(subs, option.DropSubtitleFilter);
-                lists = basicStreams.Concat(audios).Concat(subs).OrderBy(x => true);
-            }
+        // 写出文件
+        await WriteRawFilesAsync(option, extractor, tmpDir);
 
-            if (option.DropVideoFilter != null) Logger.Extra($"DropVideoFilter => {option.DropVideoFilter}");
-            if (option.DropAudioFilter != null) Logger.Extra($"DropAudioFilter => {option.DropAudioFilter}");
-            if (option.DropSubtitleFilter != null) Logger.Extra($"DropSubtitleFilter => {option.DropSubtitleFilter}");
-            if (option.VideoFilter != null) Logger.Extra($"VideoFilter => {option.VideoFilter}");
-            if (option.AudioFilter != null) Logger.Extra($"AudioFilter => {option.AudioFilter}");
-            if (option.SubtitleFilter != null) Logger.Extra($"SubtitleFilter => {option.SubtitleFilter}");
-
-            if (option.AutoSelect)
-            {
-                if (basicStreams.Any())
-                    selectedStreams.Add(basicStreams.First());
-                var langs = audios.DistinctBy(a => a.Language).Select(a => a.Language);
-                foreach (var lang in langs)
-                {
-                    selectedStreams.Add(audios.Where(a => a.Language == lang).OrderByDescending(a => a.Bandwidth).ThenByDescending(GetOrder).First());
-                }
-                selectedStreams.AddRange(subs);
-            }
-            else if (option.SubOnly)
-            {
-                selectedStreams.AddRange(subs);
-            }
-            else if (option.VideoFilter != null || option.AudioFilter != null || option.SubtitleFilter != null)
-            {
-                basicStreams = FilterUtil.DoFilterKeep(basicStreams, option.VideoFilter);
-                audios = FilterUtil.DoFilterKeep(audios, option.AudioFilter);
-                subs = FilterUtil.DoFilterKeep(subs, option.SubtitleFilter);
-                selectedStreams = basicStreams.Concat(audios).Concat(subs).ToList();
-            }
-            else
-            {
-                //展示交互式选择框
-                selectedStreams = FilterUtil.SelectStreams(lists);
-            }
-
-            if (!selectedStreams.Any())
-                throw new Exception(ResString.noStreamsToDownload);
-
-            //HLS: 选中流中若有没加载出playlist的，加载playlist
-            //DASH/MSS: 加载playlist (调用url预处理器)
-            if (selectedStreams.Any(s => s.Playlist == null) || extractor.ExtractorType == ExtractorType.MPEG_DASH || extractor.ExtractorType == ExtractorType.MSS)
-                await extractor.FetchPlayListAsync(selectedStreams);
-
-            //直播检测
-            var livingFlag = selectedStreams.Any(s => s.Playlist?.IsLive == true) && !option.LivePerformAsVod;
-            if (livingFlag)
-            {
-                Logger.WarnMarkUp($"[white on darkorange3_1]{ResString.liveFound}[/]");
-            }
-
-            //无法识别的加密方式，自动开启二进制合并
-            if (selectedStreams.Any(s => s.Playlist.MediaParts.Any(p => p.MediaSegments.Any(m => m.EncryptInfo.Method == EncryptMethod.UNKNOWN))))
-            {
-                Logger.WarnMarkUp($"[darkorange3_1]{ResString.autoBinaryMerge3}[/]");
-                option.BinaryMerge = true;
-            }
-
-            //应用用户自定义的分片范围
-            if (!livingFlag)
-                FilterUtil.ApplyCustomRange(selectedStreams, option.CustomRange);
-
-            //应用用户自定义的广告分片关键字
-            FilterUtil.CleanAd(selectedStreams, option.AdKeywords);
-
-            //记录文件
-            extractor.RawFiles["meta_selected.json"] = GlobalUtil.ConvertToJson(selectedStreams);
-
-            Logger.Info(ResString.selectedStream);
-            foreach (var item in selectedStreams)
-            {
-                Logger.InfoMarkUp(item.ToString());
-            }
-
-            //写出文件
-            await WriteRawFilesAsync(option, extractor, tmpDir);
-
-            if (option.SkipDownload)
-            {
-                return;
-            }
+        if (option.SkipDownload)
+        {
+            return;
+        }
 
 #if DEBUG
-            Console.WriteLine("Press any key to continue...");
-            Console.ReadKey();
+        Console.WriteLine("Press any key to continue...");
+        Console.ReadKey();
 #endif
 
-            Logger.InfoMarkUp(ResString.saveName + $"[deepskyblue1]{option.SaveName.EscapeMarkup()}[/]");
+        Logger.InfoMarkUp(ResString.saveName + $"[deepskyblue1]{option.SaveName.EscapeMarkup()}[/]");
 
-            //开始MuxAfterDone后自动使用二进制版
-            if (!option.BinaryMerge && option.MuxAfterDone)
-            {
-                option.BinaryMerge = true;
-                Logger.WarnMarkUp($"[darkorange3_1]{ResString.autoBinaryMerge6}[/]");
-            }
-
-            //下载配置
-            var downloadConfig = new DownloaderConfig()
-            {
-                MyOptions = option,
-                DirPrefix = tmpDir,
-                Headers = parserConfig.Headers, //使用命令行解析得到的Headers
-            };
-
-            var result = false;
-
-            if (extractor.ExtractorType == ExtractorType.HTTP_LIVE)
-            {
-                var sldm = new HTTPLiveRecordManager(downloadConfig, selectedStreams, extractor);
-                result = await sldm.StartRecordAsync();
-            }
-            else if (!livingFlag)
-            {
-                //开始下载
-                var sdm = new SimpleDownloadManager(downloadConfig, selectedStreams, extractor);
-                result = await sdm.StartDownloadAsync();
-            }
-            else
-            {
-                var sldm = new SimpleLiveRecordManager2(downloadConfig, selectedStreams, extractor);
-                result = await sldm.StartRecordAsync();
-            }
-
-            if (result)
-            {
-                Logger.InfoMarkUp("[white on green]Done[/]");
-            }
-            else
-            {
-                Logger.ErrorMarkUp("[white on red]Failed[/]");
-                Environment.ExitCode = 1;
-            }
+        // 开始MuxAfterDone后自动使用二进制版
+        if (option is { BinaryMerge: false, MuxAfterDone: true })
+        {
+            option.BinaryMerge = true;
+            Logger.WarnMarkUp($"[darkorange3_1]{ResString.autoBinaryMerge6}[/]");
         }
 
-        private static async Task WriteRawFilesAsync(MyOption option, StreamExtractor extractor, string tmpDir)
+        // 下载配置
+        var downloadConfig = new DownloaderConfig()
         {
-            //写出json文件
-            if (option.WriteMetaJson)
-            {
-                if (!Directory.Exists(tmpDir)) Directory.CreateDirectory(tmpDir);
-                Logger.Warn(ResString.writeJson);
-                foreach (var item in extractor.RawFiles)
-                {
-                    var file = Path.Combine(tmpDir, item.Key);
-                    if (!File.Exists(file)) await File.WriteAllTextAsync(file, item.Value, Encoding.UTF8);
-                }
-            }
+            MyOptions = option,
+            DirPrefix = tmpDir,
+            Headers = parserConfig.Headers, // 使用命令行解析得到的Headers
+        };
+
+        var result = false;
+
+        if (extractor.ExtractorType == ExtractorType.HTTP_LIVE)
+        {
+            var sldm = new HTTPLiveRecordManager(downloadConfig, selectedStreams, extractor);
+            result = await sldm.StartRecordAsync();
+        }
+        else if (!livingFlag)
+        {
+            // 开始下载
+            var sdm = new SimpleDownloadManager(downloadConfig, selectedStreams, extractor);
+            result = await sdm.StartDownloadAsync();
+        }
+        else
+        {
+            var sldm = new SimpleLiveRecordManager2(downloadConfig, selectedStreams, extractor);
+            result = await sldm.StartRecordAsync();
         }
 
-        static async Task CheckUpdateAsync()
+        if (result)
         {
-            try
-            {
-                var ver = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version!;
-                string nowVer = $"v{ver.Major}.{ver.Minor}.{ver.Build}";
-                string redirctUrl = await Get302Async("https://github.com/nilaoda/N_m3u8DL-RE/releases/latest");
-                string latestVer = redirctUrl.Replace("https://github.com/nilaoda/N_m3u8DL-RE/releases/tag/", "");
-                if (!latestVer.StartsWith(nowVer) && !latestVer.StartsWith("https"))
-                {
-                    Console.Title = $"{ResString.newVersionFound} {latestVer}";
-                    Logger.InfoMarkUp($"[cyan]{ResString.newVersionFound}[/] [red]{latestVer}[/]");
-                }
-            }
-            catch (Exception)
-            {
-                ;
-            }
+            Logger.InfoMarkUp("[white on green]Done[/]");
         }
-
-        //重定向
-        static async Task<string> Get302Async(string url)
+        else
         {
-            //this allows you to set the settings so that we can get the redirect url
-            var handler = new HttpClientHandler()
-            {
-                AllowAutoRedirect = false
-            };
-            string redirectedUrl = "";
-            using (HttpClient client = new(handler))
-            using (HttpResponseMessage response = await client.GetAsync(url))
-            using (HttpContent content = response.Content)
-            {
-                // ... Read the response to see if we have the redirected url
-                if (response.StatusCode == System.Net.HttpStatusCode.Found)
-                {
-                    HttpResponseHeaders headers = response.Headers;
-                    if (headers != null && headers.Location != null)
-                    {
-                        redirectedUrl = headers.Location.AbsoluteUri;
-                    }
-                }
-            }
-
-            return redirectedUrl;
+            Logger.ErrorMarkUp("[white on red]Failed[/]");
+            Environment.ExitCode = 1;
         }
     }
+
+    private static async Task WriteRawFilesAsync(MyOption option, StreamExtractor extractor, string tmpDir)
+    {
+        // 写出json文件
+        if (option.WriteMetaJson)
+        {
+            if (!Directory.Exists(tmpDir)) Directory.CreateDirectory(tmpDir);
+            Logger.Warn(ResString.writeJson);
+            foreach (var item in extractor.RawFiles)
+            {
+                var file = Path.Combine(tmpDir, item.Key);
+                if (!File.Exists(file)) await File.WriteAllTextAsync(file, item.Value, Encoding.UTF8);
+            }
+        }
+    }
+
+    static async Task CheckUpdateAsync()
+    {
+        try
+        {
+            var ver = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version!;
+            string nowVer = $"v{ver.Major}.{ver.Minor}.{ver.Build}";
+            string redirctUrl = await Get302Async("https://github.com/nilaoda/N_m3u8DL-RE/releases/latest");
+            string latestVer = redirctUrl.Replace("https://github.com/nilaoda/N_m3u8DL-RE/releases/tag/", "");
+            if (!latestVer.StartsWith(nowVer) && !latestVer.StartsWith("https"))
+            {
+                Console.Title = $"{ResString.newVersionFound} {latestVer}";
+                Logger.InfoMarkUp($"[cyan]{ResString.newVersionFound}[/] [red]{latestVer}[/]");
+            }
+        }
+        catch (Exception)
+        {
+            ;
+        }
+    }
+
+    // 重定向
+    static async Task<string> Get302Async(string url)
+    {
+        // this allows you to set the settings so that we can get the redirect url
+        var handler = new HttpClientHandler
+        {
+            AllowAutoRedirect = false
+        };
+        var redirectedUrl = "";
+        using var client = new HttpClient(handler);
+        using var response = await client.GetAsync(url);
+        using var content = response.Content;
+        // ... Read the response to see if we have the redirected url
+        if (response.StatusCode != HttpStatusCode.Found) return redirectedUrl;
+        
+        var headers = response.Headers;
+        if (headers.Location != null)
+        {
+            redirectedUrl = headers.Location.AbsoluteUri;
+        }
+
+        return redirectedUrl;
+    }
 }

src/N_m3u8DL-RE/Util/DownloadUtil.cs

@@ -2,145 +2,142 @@
 using N_m3u8DL_RE.Common.Resource;
 using N_m3u8DL_RE.Common.Util;
 using N_m3u8DL_RE.Entity;
-using System.IO;
-using System.Net;
 using System.Net.Http.Headers;
 
-namespace N_m3u8DL_RE.Util
-{
-    internal class DownloadUtil
-    {
-        private static readonly HttpClient AppHttpClient = HTTPUtil.AppHttpClient;
+namespace N_m3u8DL_RE.Util;
 
-        private static async Task<DownloadResult> CopyFileAsync(string sourceFile, string path, SpeedContainer speedContainer, long? fromPosition = null, long? toPosition = null)
+internal static class DownloadUtil
+{
+    private static readonly HttpClient AppHttpClient = HTTPUtil.AppHttpClient;
+
+    private static async Task<DownloadResult> CopyFileAsync(string sourceFile, string path, SpeedContainer speedContainer, long? fromPosition = null, long? toPosition = null)
+    {
+        using var inputStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read);
+        using var outputStream = new FileStream(path, FileMode.OpenOrCreate);
+        inputStream.Seek(fromPosition ?? 0L, SeekOrigin.Begin);
+        var expect = (toPosition ?? inputStream.Length) - inputStream.Position + 1;
+        if (expect == inputStream.Length + 1)
         {
-            using var inputStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read);
-            using var outputStream = new FileStream(path, FileMode.OpenOrCreate);
-            inputStream.Seek(fromPosition ?? 0L, SeekOrigin.Begin);
-            var expect = (toPosition ?? inputStream.Length) - inputStream.Position + 1;
-            if (expect == inputStream.Length + 1)
-            {
-                await inputStream.CopyToAsync(outputStream);
-                speedContainer.Add(inputStream.Length);
-            }
-            else
-            {
-                var buffer = new byte[expect];
-                await inputStream.ReadAsync(buffer);
-                await outputStream.WriteAsync(buffer, 0, buffer.Length);
-                speedContainer.Add(buffer.Length);
-            }
+            await inputStream.CopyToAsync(outputStream);
+            speedContainer.Add(inputStream.Length);
+        }
+        else
+        {
+            var buffer = new byte[expect];
+            _ = await inputStream.ReadAsync(buffer);
+            await outputStream.WriteAsync(buffer);
+            speedContainer.Add(buffer.Length);
+        }
+        return new DownloadResult()
+        {
+            ActualContentLength = outputStream.Length,
+            ActualFilePath = path
+        };
+    }
+
+    public static async Task<DownloadResult> DownloadToFileAsync(string url, string path, SpeedContainer speedContainer, CancellationTokenSource cancellationTokenSource, Dictionary<string, string>? headers = null, long? fromPosition = null, long? toPosition = null)
+    {
+        Logger.Debug(ResString.fetch + url);
+        if (url.StartsWith("file:"))
+        {
+            var file = new Uri(url).LocalPath;
+            return await CopyFileAsync(file, path, speedContainer, fromPosition, toPosition);
+        }
+        if (url.StartsWith("base64://"))
+        {
+            var bytes = Convert.FromBase64String(url[9..]);
+            await File.WriteAllBytesAsync(path, bytes);
             return new DownloadResult()
             {
-                ActualContentLength = outputStream.Length,
-                ActualFilePath = path
+                ActualContentLength = bytes.Length,
+                ActualFilePath = path,
             };
         }
-
-        public static async Task<DownloadResult> DownloadToFileAsync(string url, string path, SpeedContainer speedContainer, CancellationTokenSource cancellationTokenSource, Dictionary<string, string>? headers = null, long? fromPosition = null, long? toPosition = null)
+        if (url.StartsWith("hex://"))
         {
-            Logger.Debug(ResString.fetch + url);
-            if (url.StartsWith("file:"))
+            var bytes = HexUtil.HexToBytes(url[6..]);
+            await File.WriteAllBytesAsync(path, bytes);
+            return new DownloadResult()
             {
-                var file = new Uri(url).LocalPath;
-                return await CopyFileAsync(file, path, speedContainer, fromPosition, toPosition);
+                ActualContentLength = bytes.Length,
+                ActualFilePath = path,
+            };
+        }
+        using var request = new HttpRequestMessage(HttpMethod.Get, new Uri(url));
+        if (fromPosition != null || toPosition != null)
+            request.Headers.Range = new(fromPosition, toPosition);
+        if (headers != null)
+        {
+            foreach (var item in headers)
+            {
+                request.Headers.TryAddWithoutValidation(item.Key, item.Value);
             }
-            if (url.StartsWith("base64://"))
+        }
+        Logger.Debug(request.Headers.ToString());
+        try
+        {
+            using var response = await AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationTokenSource.Token);
+            if (((int)response.StatusCode).ToString().StartsWith("30"))
             {
-                var bytes = Convert.FromBase64String(url[9..]);
-                await File.WriteAllBytesAsync(path, bytes);
-                return new DownloadResult()
+                HttpResponseHeaders respHeaders = response.Headers;
+                Logger.Debug(respHeaders.ToString());
+                if (respHeaders.Location != null)
                 {
-                    ActualContentLength = bytes.Length,
-                    ActualFilePath = path,
-                };
-            }
-            if (url.StartsWith("hex://"))
-            {
-                var bytes = HexUtil.HexToBytes(url[6..]);
-                await File.WriteAllBytesAsync(path, bytes);
-                return new DownloadResult()
-                {
-                    ActualContentLength = bytes.Length,
-                    ActualFilePath = path,
-                };
-            }
-            using var request = new HttpRequestMessage(HttpMethod.Get, new Uri(url));
-            if (fromPosition != null || toPosition != null)
-                request.Headers.Range = new(fromPosition, toPosition);
-            if (headers != null)
-            {
-                foreach (var item in headers)
-                {
-                    request.Headers.TryAddWithoutValidation(item.Key, item.Value);
-                }
-            }
-            Logger.Debug(request.Headers.ToString());
-            try
-            {
-                using var response = await AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationTokenSource.Token);
-                if (((int)response.StatusCode).ToString().StartsWith("30"))
-                {
-                    HttpResponseHeaders respHeaders = response.Headers;
-                    Logger.Debug(respHeaders.ToString());
-                    if (respHeaders != null && respHeaders.Location != null)
+                    var redirectedUrl = "";
+                    if (!respHeaders.Location.IsAbsoluteUri)
                     {
-                        var redirectedUrl = "";
-                        if (!respHeaders.Location.IsAbsoluteUri)
-                        {
-                            Uri uri1 = new Uri(url);
-                            Uri uri2 = new Uri(uri1, respHeaders.Location);
-                            redirectedUrl = uri2.ToString();
-                        }
-                        else
-                        {
-                            redirectedUrl = respHeaders.Location.AbsoluteUri;
-                        }
-                        return await DownloadToFileAsync(redirectedUrl, path, speedContainer, cancellationTokenSource, headers, fromPosition, toPosition);
+                        Uri uri1 = new Uri(url);
+                        Uri uri2 = new Uri(uri1, respHeaders.Location);
+                        redirectedUrl = uri2.ToString();
                     }
+                    else
+                    {
+                        redirectedUrl = respHeaders.Location.AbsoluteUri;
+                    }
+                    return await DownloadToFileAsync(redirectedUrl, path, speedContainer, cancellationTokenSource, headers, fromPosition, toPosition);
                 }
-                response.EnsureSuccessStatusCode();
-                var contentLength = response.Content.Headers.ContentLength;
-                if (speedContainer.SingleSegment) speedContainer.ResponseLength = contentLength;
+            }
+            response.EnsureSuccessStatusCode();
+            var contentLength = response.Content.Headers.ContentLength;
+            if (speedContainer.SingleSegment) speedContainer.ResponseLength = contentLength;
 
-                using var stream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None);
-                using var responseStream = await response.Content.ReadAsStreamAsync(cancellationTokenSource.Token);
-                var buffer = new byte[16 * 1024];
-                var size = 0;
+            using var stream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None);
+            using var responseStream = await response.Content.ReadAsStreamAsync(cancellationTokenSource.Token);
+            var buffer = new byte[16 * 1024];
+            var size = 0;
 
-                size = await responseStream.ReadAsync(buffer, cancellationTokenSource.Token);
+            size = await responseStream.ReadAsync(buffer, cancellationTokenSource.Token);
+            speedContainer.Add(size);
+            await stream.WriteAsync(buffer.AsMemory(0, size));
+            // 检测imageHeader
+            bool imageHeader = ImageHeaderUtil.IsImageHeader(buffer);
+            // 检测GZip（For DDP Audio）
+            bool gZipHeader = buffer.Length > 2 && buffer[0] == 0x1f && buffer[1] == 0x8b;
+
+            while ((size = await responseStream.ReadAsync(buffer, cancellationTokenSource.Token)) > 0)
+            {
                 speedContainer.Add(size);
-                await stream.WriteAsync(buffer, 0, size);
-                //检测imageHeader
-                bool imageHeader = ImageHeaderUtil.IsImageHeader(buffer);
-                //检测GZip（For DDP Audio）
-                bool gZipHeader = buffer.Length > 2 && buffer[0] == 0x1f && buffer[1] == 0x8b;
-
-                while ((size = await responseStream.ReadAsync(buffer, cancellationTokenSource.Token)) > 0)
+                await stream.WriteAsync(buffer.AsMemory(0, size));
+                // 限速策略
+                while (speedContainer.Downloaded > speedContainer.SpeedLimit)
                 {
-                    speedContainer.Add(size);
-                    await stream.WriteAsync(buffer, 0, size);
-                    //限速策略
-                    while (speedContainer.Downloaded > speedContainer.SpeedLimit)
-                    {
-                        await Task.Delay(1);
-                    }
+                    await Task.Delay(1);
                 }
+            }
 
-                return new DownloadResult()
-                {
-                    ActualContentLength = stream.Length,
-                    RespContentLength = contentLength,
-                    ActualFilePath = path,
-                    ImageHeader= imageHeader,
-                    GzipHeader = gZipHeader
-                };
-            }
-            catch (OperationCanceledException oce) when (oce.CancellationToken == cancellationTokenSource.Token)
+            return new DownloadResult()
             {
-                speedContainer.ResetLowSpeedCount();
-                throw new Exception("Download speed too slow!");
-            }
+                ActualContentLength = stream.Length,
+                RespContentLength = contentLength,
+                ActualFilePath = path,
+                ImageHeader= imageHeader,
+                GzipHeader = gZipHeader
+            };
+        }
+        catch (OperationCanceledException oce) when (oce.CancellationToken == cancellationTokenSource.Token)
+        {
+            speedContainer.ResetLowSpeedCount();
+            throw new Exception("Download speed too slow!");
         }
     }
 }

src/N_m3u8DL-RE/Util/FilterUtil.cs

@@ -4,281 +4,270 @@ using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Resource;
 using N_m3u8DL_RE.Entity;
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+public static class FilterUtil
 {
-    public class FilterUtil
+    public static List<StreamSpec> DoFilterKeep(IEnumerable<StreamSpec> lists, StreamFilter? filter)
     {
-        public static List<StreamSpec> DoFilterKeep(IEnumerable<StreamSpec> lists, StreamFilter? filter)
+        if (filter == null) return [];
+
+        var inputs = lists.Where(_ => true);
+        if (filter.GroupIdReg != null)
+            inputs = inputs.Where(i => i.GroupId != null && filter.GroupIdReg.IsMatch(i.GroupId));
+        if (filter.LanguageReg != null)
+            inputs = inputs.Where(i => i.Language != null && filter.LanguageReg.IsMatch(i.Language));
+        if (filter.NameReg != null)
+            inputs = inputs.Where(i => i.Name != null && filter.NameReg.IsMatch(i.Name));
+        if (filter.CodecsReg != null)
+            inputs = inputs.Where(i => i.Codecs != null && filter.CodecsReg.IsMatch(i.Codecs));
+        if (filter.ResolutionReg != null)
+            inputs = inputs.Where(i => i.Resolution != null && filter.ResolutionReg.IsMatch(i.Resolution));
+        if (filter.FrameRateReg != null)
+            inputs = inputs.Where(i => i.FrameRate != null && filter.FrameRateReg.IsMatch($"{i.FrameRate}"));
+        if (filter.ChannelsReg != null)
+            inputs = inputs.Where(i => i.Channels != null && filter.ChannelsReg.IsMatch(i.Channels));
+        if (filter.VideoRangeReg != null)
+            inputs = inputs.Where(i => i.VideoRange != null && filter.VideoRangeReg.IsMatch(i.VideoRange));
+        if (filter.UrlReg != null)
+            inputs = inputs.Where(i => i.Url != null && filter.UrlReg.IsMatch(i.Url));
+        if (filter.SegmentsMaxCount != null && inputs.All(i => i.SegmentsCount > 0)) 
+            inputs = inputs.Where(i => i.SegmentsCount < filter.SegmentsMaxCount);
+        if (filter.SegmentsMinCount != null && inputs.All(i => i.SegmentsCount > 0))
+            inputs = inputs.Where(i => i.SegmentsCount > filter.SegmentsMinCount);
+        if (filter.PlaylistMinDur != null)
+            inputs = inputs.Where(i => i.Playlist?.TotalDuration > filter.PlaylistMinDur);
+        if (filter.PlaylistMaxDur != null)
+            inputs = inputs.Where(i => i.Playlist?.TotalDuration < filter.PlaylistMaxDur);
+        if (filter.BandwidthMin != null)
+            inputs = inputs.Where(i => i.Bandwidth >= filter.BandwidthMin);
+        if (filter.BandwidthMax != null)
+            inputs = inputs.Where(i => i.Bandwidth <= filter.BandwidthMax);
+        if (filter.Role.HasValue)
+            inputs = inputs.Where(i => i.Role == filter.Role);
+
+        var bestNumberStr = filter.For.Replace("best", "");
+        var worstNumberStr = filter.For.Replace("worst", "");
+
+        if (filter.For == "best" && inputs.Any())
+            inputs = inputs.Take(1).ToList();
+        else if (filter.For == "worst" && inputs.Any())
+            inputs = inputs.TakeLast(1).ToList();
+        else if (int.TryParse(bestNumberStr, out int bestNumber) && inputs.Any())
+            inputs = inputs.Take(bestNumber).ToList();
+        else if (int.TryParse(worstNumberStr, out int worstNumber) && inputs.Any())
+            inputs = inputs.TakeLast(worstNumber).ToList();
+
+        return inputs.ToList();
+    }
+
+    public static List<StreamSpec> DoFilterDrop(IEnumerable<StreamSpec> lists, StreamFilter? filter)
+    {
+        if (filter == null) return [..lists];
+
+        var inputs = lists.Where(_ => true);
+        var selected = DoFilterKeep(lists, filter);
+
+        inputs = inputs.Where(i => selected.All(s => s.ToString() != i.ToString()));
+
+        return inputs.ToList();
+    }
+
+    public static List<StreamSpec> SelectStreams(IEnumerable<StreamSpec> lists)
+    {
+        var streamSpecs = lists.ToList();
+        if (streamSpecs.Count == 1)
+            return [..streamSpecs];
+
+        // 基本流
+        var basicStreams = streamSpecs.Where(x => x.MediaType == null).ToList();
+        // 可选音频轨道
+        var audios = streamSpecs.Where(x => x.MediaType == MediaType.AUDIO).ToList();
+        // 可选字幕轨道
+        var subs = streamSpecs.Where(x => x.MediaType == MediaType.SUBTITLES).ToList();
+
+        var prompt = new MultiSelectionPrompt<StreamSpec>()
+                .Title(ResString.promptTitle)
+                .UseConverter(x =>
+                {
+                    if (x.Name != null && x.Name.StartsWith("__"))
+                        return $"[darkslategray1]{x.Name[2..]}[/]";
+                    return x.ToString().EscapeMarkup().RemoveMarkup();
+                })
+                .Required()
+                .PageSize(10)
+                .MoreChoicesText(ResString.promptChoiceText)
+                .InstructionsText(ResString.promptInfo)
+            ;
+
+        // 默认选中第一个
+        var first = streamSpecs.First();
+        prompt.Select(first);
+
+        if (basicStreams.Count != 0)
         {
-            if (filter == null) return new List<StreamSpec>();
-
-            var inputs = lists.Where(_ => true);
-            if (filter.GroupIdReg != null)
-                inputs = inputs.Where(i => i.GroupId != null && filter.GroupIdReg.IsMatch(i.GroupId));
-            if (filter.LanguageReg != null)
-                inputs = inputs.Where(i => i.Language != null && filter.LanguageReg.IsMatch(i.Language));
-            if (filter.NameReg != null)
-                inputs = inputs.Where(i => i.Name != null && filter.NameReg.IsMatch(i.Name));
-            if (filter.CodecsReg != null)
-                inputs = inputs.Where(i => i.Codecs != null && filter.CodecsReg.IsMatch(i.Codecs));
-            if (filter.ResolutionReg != null)
-                inputs = inputs.Where(i => i.Resolution != null && filter.ResolutionReg.IsMatch(i.Resolution));
-            if (filter.FrameRateReg != null)
-                inputs = inputs.Where(i => i.FrameRate != null && filter.FrameRateReg.IsMatch($"{i.FrameRate}"));
-            if (filter.ChannelsReg != null)
-                inputs = inputs.Where(i => i.Channels != null && filter.ChannelsReg.IsMatch(i.Channels));
-            if (filter.VideoRangeReg != null)
-                inputs = inputs.Where(i => i.VideoRange != null && filter.VideoRangeReg.IsMatch(i.VideoRange));
-            if (filter.UrlReg != null)
-                inputs = inputs.Where(i => i.Url != null && filter.UrlReg.IsMatch(i.Url));
-            if (filter.SegmentsMaxCount != null && inputs.All(i => i.SegmentsCount > 0)) 
-                inputs = inputs.Where(i => i.SegmentsCount < filter.SegmentsMaxCount);
-            if (filter.SegmentsMinCount != null && inputs.All(i => i.SegmentsCount > 0))
-                inputs = inputs.Where(i => i.SegmentsCount > filter.SegmentsMinCount);
-            if (filter.PlaylistMinDur != null)
-                inputs = inputs.Where(i => i.Playlist?.TotalDuration > filter.PlaylistMinDur);
-            if (filter.PlaylistMaxDur != null)
-                inputs = inputs.Where(i => i.Playlist?.TotalDuration < filter.PlaylistMaxDur);
-            if (filter.BandwidthMin != null)
-                inputs = inputs.Where(i => i.Bandwidth >= filter.BandwidthMin);
-            if (filter.BandwidthMax != null)
-                inputs = inputs.Where(i => i.Bandwidth <= filter.BandwidthMax);
-            if (filter.Role.HasValue)
-                inputs = inputs.Where(i => i.Role == filter.Role);
-
-            var bestNumberStr = filter.For.Replace("best", "");
-            var worstNumberStr = filter.For.Replace("worst", "");
-
-            if (filter.For == "best" && inputs.Count() > 0)
-                inputs = inputs.Take(1).ToList();
-            else if (filter.For == "worst" && inputs.Count() > 0)
-                inputs = inputs.TakeLast(1).ToList();
-            else if (int.TryParse(bestNumberStr, out int bestNumber) && inputs.Count() > 0)
-                inputs = inputs.Take(bestNumber).ToList();
-            else if (int.TryParse(worstNumberStr, out int worstNumber) && inputs.Count() > 0)
-                inputs = inputs.TakeLast(worstNumber).ToList();
-
-            return inputs.ToList();
+            prompt.AddChoiceGroup(new StreamSpec() { Name = "__Basic" }, basicStreams);
         }
 
-        public static List<StreamSpec> DoFilterDrop(IEnumerable<StreamSpec> lists, StreamFilter? filter)
+        if (audios.Count != 0)
         {
-            if (filter == null) return new List<StreamSpec>(lists);
-
-            var inputs = lists.Where(_ => true);
-            var selected = DoFilterKeep(lists, filter);
-
-            inputs = inputs.Where(i => selected.All(s => s.ToString() != i.ToString()));
-
-            return inputs.ToList();
+            prompt.AddChoiceGroup(new StreamSpec() { Name = "__Audio" }, audios);
+            // 默认音轨
+            if (first.AudioId != null)
+            {
+                prompt.Select(audios.First(a => a.GroupId == first.AudioId));
+            }
+        }
+        if (subs.Count != 0)
+        {
+            prompt.AddChoiceGroup(new StreamSpec() { Name = "__Subtitle" }, subs);
+            // 默认字幕轨
+            if (first.SubtitleId != null)
+            {
+                prompt.Select(subs.First(s => s.GroupId == first.SubtitleId));
+            }
         }
 
-        public static List<StreamSpec> SelectStreams(IEnumerable<StreamSpec> lists)
+        // 如果此时还是没有选中任何流，自动选择一个
+        prompt.Select(basicStreams.Concat(audios).Concat(subs).First());
+
+        // 多选
+        var selectedStreams = CustomAnsiConsole.Console.Prompt(prompt);
+
+        return selectedStreams;
+    }
+
+    /// <summary>
+    /// 直播使用。对齐各个轨道的起始。
+    /// </summary>
+    /// <param name="selectedSteams"></param>
+    /// <param name="takeLastCount"></param>
+    public static void SyncStreams(List<StreamSpec> selectedSteams, int takeLastCount = 15)
+    {
+        // 通过Date同步
+        if (selectedSteams.All(x => x.Playlist!.MediaParts[0].MediaSegments.All(x => x.DateTime != null)))
         {
-            if (lists.Count() == 1)
-                return new List<StreamSpec>(lists);
-
-            //基本流
-            var basicStreams = lists.Where(x => x.MediaType == null);
-            //可选音频轨道
-            var audios = lists.Where(x => x.MediaType == MediaType.AUDIO);
-            //可选字幕轨道
-            var subs = lists.Where(x => x.MediaType == MediaType.SUBTITLES);
-
-            var prompt = new MultiSelectionPrompt<StreamSpec>()
-                        .Title(ResString.promptTitle)
-                        .UseConverter(x =>
-                        {
-                            if (x.Name != null && x.Name.StartsWith("__"))
-                                return $"[darkslategray1]{x.Name.Substring(2)}[/]";
-                            else
-                                return x.ToString().EscapeMarkup().RemoveMarkup();
-                        })
-                        .Required()
-                        .PageSize(10)
-                        .MoreChoicesText(ResString.promptChoiceText)
-                        .InstructionsText(ResString.promptInfo)
-                        ;
-
-            //默认选中第一个
-            var first = lists.First();
-            prompt.Select(first);
-
-            if (basicStreams.Any())
+            var minDate = selectedSteams.Max(s => s.Playlist!.MediaParts[0].MediaSegments.Min(s => s.DateTime))!;
+            foreach (var item in selectedSteams)
             {
-                prompt.AddChoiceGroup(new StreamSpec() { Name = "__Basic" }, basicStreams);
-            }
-
-            if (audios.Any())
-            {
-                prompt.AddChoiceGroup(new StreamSpec() { Name = "__Audio" }, audios);
-                //默认音轨
-                if (first.AudioId != null)
+                foreach (var part in item.Playlist!.MediaParts)
                 {
-                    prompt.Select(audios.First(a => a.GroupId == first.AudioId));
+                    // 秒级同步 忽略毫秒
+                    part.MediaSegments = part.MediaSegments.Where(s => s.DateTime!.Value.Ticks / TimeSpan.TicksPerSecond >= minDate.Value.Ticks / TimeSpan.TicksPerSecond).ToList();
                 }
             }
-            if (subs.Any())
-            {
-                prompt.AddChoiceGroup(new StreamSpec() { Name = "__Subtitle" }, subs);
-                //默认字幕轨
-                if (first.SubtitleId != null)
-                {
-                    prompt.Select(subs.First(s => s.GroupId == first.SubtitleId));
-                }
-            }
-
-            //如果此时还是没有选中任何流，自动选择一个
-            prompt.Select(basicStreams.Concat(audios).Concat(subs).First());
-
-            //多选
-            var selectedStreams = CustomAnsiConsole.Console.Prompt(prompt);
-
-            return selectedStreams;
         }
-
-        /// <summary>
-        /// 直播使用。对齐各个轨道的起始。
-        /// </summary>
-        /// <param name="streams"></param>
-        /// <param name="takeLastCount"></param>
-        public static void SyncStreams(List<StreamSpec> selectedSteams, int takeLastCount = 15)
+        else // 通过index同步
         {
-            //通过Date同步
-            if (selectedSteams.All(x => x.Playlist!.MediaParts[0].MediaSegments.All(x => x.DateTime != null)))
+            var minIndex = selectedSteams.Max(s => s.Playlist!.MediaParts[0].MediaSegments.Min(s => s.Index));
+            foreach (var item in selectedSteams)
             {
-                var minDate = selectedSteams.Max(s => s.Playlist!.MediaParts[0].MediaSegments.Min(s => s.DateTime))!;
-                foreach (var item in selectedSteams)
+                foreach (var part in item.Playlist!.MediaParts)
                 {
-                    foreach (var part in item.Playlist!.MediaParts)
-                    {
-                        //秒级同步 忽略毫秒
-                        part.MediaSegments = part.MediaSegments.Where(s => s.DateTime!.Value.Ticks / TimeSpan.TicksPerSecond >= minDate.Value.Ticks / TimeSpan.TicksPerSecond).ToList();
-                    }
-                }
-            }
-            else //通过index同步
-            {
-                var minIndex = selectedSteams.Max(s => s.Playlist!.MediaParts[0].MediaSegments.Min(s => s.Index));
-                foreach (var item in selectedSteams)
-                {
-                    foreach (var part in item.Playlist!.MediaParts)
-                    {
-                        part.MediaSegments = part.MediaSegments.Where(s => s.Index >= minIndex).ToList();
-                    }
-                }
-            }
-
-            //取最新的N个分片
-            if (selectedSteams.Any(x => x.Playlist!.MediaParts[0].MediaSegments.Count > takeLastCount))
-            {
-                var skipCount = selectedSteams.Min(x => x.Playlist!.MediaParts[0].MediaSegments.Count) - takeLastCount + 1;
-                if (skipCount < 0) skipCount = 0;
-                foreach (var item in selectedSteams)
-                {
-                    foreach (var part in item.Playlist!.MediaParts)
-                    {
-                        part.MediaSegments = part.MediaSegments.Skip(skipCount).ToList();
-                    }
+                    part.MediaSegments = part.MediaSegments.Where(s => s.Index >= minIndex).ToList();
                 }
             }
         }
 
-        /// <summary>
-        /// 应用用户自定义的分片范围
-        /// </summary>
-        /// <param name="selectedSteams"></param>
-        /// <param name="customRange"></param>
-        public static void ApplyCustomRange(List<StreamSpec> selectedSteams, CustomRange? customRange)
+        // 取最新的N个分片
+        if (selectedSteams.Any(x => x.Playlist!.MediaParts[0].MediaSegments.Count > takeLastCount))
         {
-            var resultList = selectedSteams.Select(x => 0d).ToList();
-
-            if (customRange == null) return;
-
-            Logger.InfoMarkUp($"{ResString.customRangeFound}[Cyan underline]{customRange.InputStr}[/]");
-            Logger.WarnMarkUp($"[darkorange3_1]{ResString.customRangeWarn}[/]");
-
-            var filteByIndex = customRange.StartSegIndex != null && customRange.EndSegIndex != null;
-            var filteByTime = customRange.StartSec != null && customRange.EndSec != null;
-
-            if (!filteByIndex && !filteByTime)
+            var skipCount = selectedSteams.Min(x => x.Playlist!.MediaParts[0].MediaSegments.Count) - takeLastCount + 1;
+            if (skipCount < 0) skipCount = 0;
+            foreach (var item in selectedSteams)
             {
-                Logger.ErrorMarkUp(ResString.customRangeInvalid);
-                return;
-            }
-
-            foreach (var stream in selectedSteams)
-            {
-                var skippedDur = 0d;
-                if (stream.Playlist == null) continue;
-                foreach (var part in stream.Playlist.MediaParts)
+                foreach (var part in item.Playlist!.MediaParts)
                 {
-                    var newSegments = new List<MediaSegment>();
-                    if (filteByIndex)
-                        newSegments = part.MediaSegments.Where(seg => seg.Index >= customRange.StartSegIndex && seg.Index <= customRange.EndSegIndex).ToList();
-                    else
-                        newSegments = part.MediaSegments.Where(seg => stream.Playlist.MediaParts.SelectMany(p => p.MediaSegments).Where(x => x.Index < seg.Index).Sum(x => x.Duration) >= customRange.StartSec
-                            && stream.Playlist.MediaParts.SelectMany(p => p.MediaSegments).Where(x => x.Index < seg.Index).Sum(x => x.Duration) <= customRange.EndSec).ToList();
-
-                    if (newSegments.Count > 0)
-                        skippedDur += part.MediaSegments.Where(seg => seg.Index < newSegments.First().Index).Sum(x => x.Duration);
-                    part.MediaSegments = newSegments;
-                }
-                stream.SkippedDuration = skippedDur;
-            }
-        }
-
-        /// <summary>
-        /// 根据用户输入，清除广告分片
-        /// </summary>
-        /// <param name="selectedSteams"></param>
-        /// <param name="customRange"></param>
-        public static void CleanAd(List<StreamSpec> selectedSteams, string[]? keywords)
-        {
-            if (keywords == null) return;
-            var regList = keywords.Select(s => new Regex(s));
-            foreach ( var reg in regList)
-            {
-                Logger.InfoMarkUp($"{ResString.customAdKeywordsFound}[Cyan underline]{reg}[/]");
-            }
-
-            foreach (var stream in selectedSteams)
-            {
-                if (stream.Playlist == null) continue;
-
-                var countBefore = stream.SegmentsCount;
-
-                foreach (var part in stream.Playlist.MediaParts)
-                {
-                    //没有找到广告分片
-                    if (part.MediaSegments.All(x => regList.All(reg => !reg.IsMatch(x.Url))))
-                    {
-                        continue;
-                    }
-                    //找到广告分片 清理
-                    else
-                    {
-                        part.MediaSegments = part.MediaSegments.Where(x => regList.All(reg => !reg.IsMatch(x.Url))).ToList();
-                    }
-                }
-
-                //清理已经为空的 part
-                stream.Playlist.MediaParts = stream.Playlist.MediaParts.Where(x => x.MediaSegments.Count > 0).ToList();
-
-                var countAfter = stream.SegmentsCount;
-
-                if (countBefore != countAfter)
-                {
-                    Logger.WarnMarkUp("[grey]{} segments => {} segments[/]", countBefore, countAfter);
+                    part.MediaSegments = part.MediaSegments.Skip(skipCount).ToList();
                 }
             }
         }
     }
+
+    /// <summary>
+    /// 应用用户自定义的分片范围
+    /// </summary>
+    /// <param name="selectedSteams"></param>
+    /// <param name="customRange"></param>
+    public static void ApplyCustomRange(List<StreamSpec> selectedSteams, CustomRange? customRange)
+    {
+        if (customRange == null) return;
+
+        Logger.InfoMarkUp($"{ResString.customRangeFound}[Cyan underline]{customRange.InputStr}[/]");
+        Logger.WarnMarkUp($"[darkorange3_1]{ResString.customRangeWarn}[/]");
+
+        var filterByIndex = customRange is { StartSegIndex: not null, EndSegIndex: not null };
+        var filterByTime = customRange is { StartSec: not null, EndSec: not null };
+
+        if (!filterByIndex && !filterByTime)
+        {
+            Logger.ErrorMarkUp(ResString.customRangeInvalid);
+            return;
+        }
+
+        foreach (var stream in selectedSteams)
+        {
+            var skippedDur = 0d;
+            if (stream.Playlist == null) continue;
+            foreach (var part in stream.Playlist.MediaParts)
+            {
+                List<MediaSegment> newSegments;
+                if (filterByIndex)
+                    newSegments = part.MediaSegments.Where(seg => seg.Index >= customRange.StartSegIndex && seg.Index <= customRange.EndSegIndex).ToList();
+                else
+                    newSegments = part.MediaSegments.Where(seg => stream.Playlist.MediaParts.SelectMany(p => p.MediaSegments).Where(x => x.Index < seg.Index).Sum(x => x.Duration) >= customRange.StartSec
+                                                                  && stream.Playlist.MediaParts.SelectMany(p => p.MediaSegments).Where(x => x.Index < seg.Index).Sum(x => x.Duration) <= customRange.EndSec).ToList();
+
+                if (newSegments.Count > 0)
+                    skippedDur += part.MediaSegments.Where(seg => seg.Index < newSegments.First().Index).Sum(x => x.Duration);
+                part.MediaSegments = newSegments;
+            }
+            stream.SkippedDuration = skippedDur;
+        }
+    }
+
+    /// <summary>
+    /// 根据用户输入，清除广告分片
+    /// </summary>
+    /// <param name="selectedSteams"></param>
+    /// <param name="keywords"></param>
+    public static void CleanAd(List<StreamSpec> selectedSteams, string[]? keywords)
+    {
+        if (keywords == null) return;
+        var regList = keywords.Select(s => new Regex(s)).ToList();
+        foreach ( var reg in regList)
+        {
+            Logger.InfoMarkUp($"{ResString.customAdKeywordsFound}[Cyan underline]{reg}[/]");
+        }
+
+        foreach (var stream in selectedSteams)
+        {
+            if (stream.Playlist == null) continue;
+
+            var countBefore = stream.SegmentsCount;
+
+            foreach (var part in stream.Playlist.MediaParts)
+            {
+                // 没有找到广告分片
+                if (part.MediaSegments.All(x => regList.All(reg => !reg.IsMatch(x.Url))))
+                {
+                    continue;
+                }
+                // 找到广告分片 清理
+                part.MediaSegments = part.MediaSegments.Where(x => regList.All(reg => !reg.IsMatch(x.Url))).ToList();
+            }
+
+            // 清理已经为空的 part
+            stream.Playlist.MediaParts = stream.Playlist.MediaParts.Where(x => x.MediaSegments.Count > 0).ToList();
+
+            var countAfter = stream.SegmentsCount;
+
+            if (countBefore != countAfter)
+            {
+                Logger.WarnMarkUp("[grey]{} segments => {} segments[/]", countBefore, countAfter);
+            }
+        }
+    }
 }

src/N_m3u8DL-RE/Util/ImageHeaderUtil.cs

@@ -1,76 +1,43 @@
-using System;
-using System.Collections.Generic;
-using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+namespace N_m3u8DL_RE.Util;
 
-namespace N_m3u8DL_RE.Util
+internal static class ImageHeaderUtil
 {
-    internal class ImageHeaderUtil
+    public static bool IsImageHeader(byte[] bArr)
     {
-        public static bool IsImageHeader(byte[] bArr)
-        {
-            var size = bArr.Length;
-            //PNG HEADER检测
-            if (size > 3 && 137 == bArr[0] && 80 == bArr[1] && 78 == bArr[2] && 71 == bArr[3])
-                return true;
-            //GIF HEADER检测
-            else if (size > 3 && 0x47 == bArr[0] && 0x49 == bArr[1] && 0x46 == bArr[2] && 0x38 == bArr[3])
-                return true;
-            //BMP HEADER检测
-            else if (size > 10 && 0x42 == bArr[0] && 0x4D == bArr[1] && 0x00 == bArr[5] && 0x00 == bArr[6] && 0x00 == bArr[7] && 0x00 == bArr[8])
-                return true;
-            //JPEG HEADER检测
-            else if (size > 3 && 0xFF == bArr[0] && 0xD8 == bArr[1] && 0xFF == bArr[2])
-                return true;
-            return false;
-        }
+        var size = bArr.Length;
+        // PNG HEADER检测
+        if (size > 3 && 137 == bArr[0] && 80 == bArr[1] && 78 == bArr[2] && 71 == bArr[3])
+            return true;
+        // GIF HEADER检测
+        if (size > 3 && 0x47 == bArr[0] && 0x49 == bArr[1] && 0x46 == bArr[2] && 0x38 == bArr[3])
+            return true;
+        // BMP HEADER检测
+        if (size > 10 && 0x42 == bArr[0] && 0x4D == bArr[1] && 0x00 == bArr[5] && 0x00 == bArr[6] && 0x00 == bArr[7] && 0x00 == bArr[8])
+            return true;
+        // JPEG HEADER检测
+        if (size > 3 && 0xFF == bArr[0] && 0xD8 == bArr[1] && 0xFF == bArr[2])
+            return true;
+        return false;
+    }
 
-        public static async Task ProcessAsync(string sourcePath)
-        {
-            var sourceData = await File.ReadAllBytesAsync(sourcePath);
+    public static async Task ProcessAsync(string sourcePath)
+    {
+        var sourceData = await File.ReadAllBytesAsync(sourcePath);
 
-            //PNG HEADER
-            if (137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3])
+        // PNG HEADER
+        if (137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3])
+        {
+            if (sourceData.Length > 120 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[118] && 130 == sourceData[119])
+                sourceData = sourceData[120..];
+            else if (sourceData.Length > 6102 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[6100] && 130 == sourceData[6101])
+                sourceData = sourceData[6102..];
+            else if (sourceData.Length > 69 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[67] && 130 == sourceData[68])
+                sourceData = sourceData[69..];
+            else if (sourceData.Length > 771 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[769] && 130 == sourceData[770])
+                sourceData = sourceData[771..];
+            else
             {
-                if (sourceData.Length > 120 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[118] && 130 == sourceData[119])
-                    sourceData = sourceData[120..];
-                else if (sourceData.Length > 6102 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[6100] && 130 == sourceData[6101])
-                    sourceData = sourceData[6102..];
-                else if (sourceData.Length > 69 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[67] && 130 == sourceData[68])
-                    sourceData = sourceData[69..];
-                else if (sourceData.Length > 771 && 137 == sourceData[0] && 80 == sourceData[1] && 78 == sourceData[2] && 71 == sourceData[3] && 96 == sourceData[769] && 130 == sourceData[770])
-                    sourceData = sourceData[771..];
-                else
-                {
-                    //手动查询结尾标记 0x47 出现两次
-                    int skip = 0;
-                    for (int i = 4; i < sourceData.Length - 188 * 2 - 4; i++)
-                    {
-                        if (sourceData[i] == 0x47 && sourceData[i + 188] == 0x47 && sourceData[i + 188 + 188] == 0x47)
-                        {
-                            skip = i;
-                            break;
-                        }
-                    }
-                    sourceData = sourceData[skip..];
-                }
-            }
-            //GIF HEADER
-            else if (0x47 == sourceData[0] && 0x49 == sourceData[1] && 0x46 == sourceData[2] && 0x38 == sourceData[3])
-            {
-                sourceData = sourceData[42..];
-            }
-            //BMP HEADER
-            else if (0x42 == sourceData[0] && 0x4D == sourceData[1] && 0x00 == sourceData[5] && 0x00 == sourceData[6] && 0x00 == sourceData[7] && 0x00 == sourceData[8])
-            {
-                sourceData = sourceData[0x3E..];
-            }
-            //JPEG HEADER检测
-            else if (0xFF == sourceData[0] && 0xD8 == sourceData[1] && 0xFF == sourceData[2])
-            {
-                //手动查询结尾标记 0x47 出现两次
+                // 手动查询结尾标记 0x47 出现两次
                 int skip = 0;
                 for (int i = 4; i < sourceData.Length - 188 * 2 - 4; i++)
                 {
@@ -82,8 +49,33 @@ namespace N_m3u8DL_RE.Util
                 }
                 sourceData = sourceData[skip..];
             }
-
-            await File.WriteAllBytesAsync(sourcePath, sourceData);
         }
+        // GIF HEADER
+        else if (0x47 == sourceData[0] && 0x49 == sourceData[1] && 0x46 == sourceData[2] && 0x38 == sourceData[3])
+        {
+            sourceData = sourceData[42..];
+        }
+        // BMP HEADER
+        else if (0x42 == sourceData[0] && 0x4D == sourceData[1] && 0x00 == sourceData[5] && 0x00 == sourceData[6] && 0x00 == sourceData[7] && 0x00 == sourceData[8])
+        {
+            sourceData = sourceData[0x3E..];
+        }
+        // JPEG HEADER检测
+        else if (0xFF == sourceData[0] && 0xD8 == sourceData[1] && 0xFF == sourceData[2])
+        {
+            // 手动查询结尾标记 0x47 出现两次
+            int skip = 0;
+            for (int i = 4; i < sourceData.Length - 188 * 2 - 4; i++)
+            {
+                if (sourceData[i] == 0x47 && sourceData[i + 188] == 0x47 && sourceData[i + 188 + 188] == 0x47)
+                {
+                    skip = i;
+                    break;
+                }
+            }
+            sourceData = sourceData[skip..];
+        }
+
+        await File.WriteAllBytesAsync(sourcePath, sourceData);
     }
 }

src/N_m3u8DL-RE/Util/LanguageCodeUtil.cs

@@ -1,34 +1,20 @@
 using N_m3u8DL_RE.Entity;
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal class Language(string extendCode, string code, string desc, string descA)
 {
-    class Language
-    {
-        public string Code;
-        public string ExtendCode;
-        public string Description;
-        public string DescriptionAudio;
+    public readonly string Code = code;
+    public readonly string ExtendCode = extendCode;
+    public readonly string Description = desc;
+    public readonly string DescriptionAudio = descA;
+}
 
-        public Language(string extendCode, string code, string desc, string descA)
-        {
-            Code = code;
-            ExtendCode = extendCode;
-            Description = desc;
-            DescriptionAudio = descA;
-        }
-    }
+internal static class LanguageCodeUtil
+{
 
-    internal class LanguageCodeUtil
-    {
-        private LanguageCodeUtil() { }
-
-        private readonly static List<Language> ALL_LANGS = @"
+    private static readonly List<Language> ALL_LANGS = @"
+default;und;default;default
 af;afr;Afrikaans;Afrikaans
 af-ZA;afr;Afrikaans (South Africa);Afrikaans (South Africa)
 am;amh;Amharic;Amharic
@@ -388,13 +374,13 @@ CC;chi;中文（繁體）;中文
 CZ;chi;中文（简体）;中文
 MA;msa;Melayu;Melayu
 "
-.Trim().Replace("\r", "").Split('\n').Where(x => !string.IsNullOrWhiteSpace(x)).Select(x =>
-{
-    var arr = x.Trim().Split(';');
-    return new Language(arr[0].Trim(), arr[1].Trim(), arr[2].Trim(), arr[3].Trim());
-}).ToList();
+        .Trim().Replace("\r", "").Split('\n').Where(x => !string.IsNullOrWhiteSpace(x)).Select(x =>
+        {
+            var arr = x.Trim().Split(';', StringSplitOptions.TrimEntries);
+            return new Language(arr[0], arr[1], arr[2], arr[3]);
+        }).ToList();
 
-        private static Dictionary<string, string> CODE_MAP = @"
+    private static Dictionary<string, string> CODE_MAP = @"
 iv;IVL
 ar;ara
 bg;bul
@@ -500,48 +486,46 @@ nn;nno
 bs;bos
 sr;srp
 "
-.Trim().Replace("\r", "").Split('\n').Where(x => !string.IsNullOrWhiteSpace(x)).Select(x => x.Trim()).ToDictionary(x => x.Split(';').First().Trim(), x => x.Split(';').Last().Trim());
+        .Trim().Replace("\r", "").Split('\n').Where(x => !string.IsNullOrWhiteSpace(x)).Select(x => x.Trim()).ToDictionary(x => x.Split(';').First().Trim(), x => x.Split(';').Last().Trim());
 
 
-        private static string ConvertTwoToThree(string input)
+    private static string ConvertTwoToThree(string input)
+    {
+        return CODE_MAP.GetValueOrDefault(input, input);
+    }
+
+    /// <summary>
+    /// 转换 ISO 639-1 => ISO 639-2
+    /// 且当Description为空时将DisplayName写入
+    /// </summary>
+    /// <param name="outputFile"></param>
+    public static void ConvertLangCodeAndDisplayName(OutputFile outputFile)
+    {
+        if (string.IsNullOrEmpty(outputFile.LangCode)) return;
+        var originalLangCode = outputFile.LangCode;
+
+        // 先直接查找
+        var lang = ALL_LANGS.FirstOrDefault(a => a.ExtendCode.Equals(outputFile.LangCode, StringComparison.OrdinalIgnoreCase) || a.Code.Equals(outputFile.LangCode, StringComparison.OrdinalIgnoreCase));
+        // 处理特殊的扩展语言标记
+        if (lang == null)
         {
-            if (CODE_MAP.TryGetValue(input, out var code)) return code;
-            return input;
+            // 2位转3位
+            var l = ConvertTwoToThree(outputFile.LangCode.Split('-').First());
+            lang = ALL_LANGS.FirstOrDefault(a => a.ExtendCode.Equals(l, StringComparison.OrdinalIgnoreCase) || a.Code.Equals(l, StringComparison.OrdinalIgnoreCase));
         }
 
-        /// <summary>
-        /// 转换 ISO 639-1 => ISO 639-2
-        /// 且当Description为空时将DisplayName写入
-        /// </summary>
-        /// <param name="outputFile"></param>
-        public static void ConvertLangCodeAndDisplayName(OutputFile outputFile)
+        if (lang != null)
         {
-            if (string.IsNullOrEmpty(outputFile.LangCode)) return;
-            var originalLangCode = outputFile.LangCode;
-
-            //先直接查找
-            var lang = ALL_LANGS.FirstOrDefault(a => a.ExtendCode.Equals(outputFile.LangCode, StringComparison.OrdinalIgnoreCase) || a.Code.Equals(outputFile.LangCode, StringComparison.OrdinalIgnoreCase));
-            //处理特殊的扩展语言标记
-            if (lang == null)
-            {
-                //2位转3位
-                var l = ConvertTwoToThree(outputFile.LangCode.Split('-').First());
-                lang = ALL_LANGS.FirstOrDefault(a => a.ExtendCode.Equals(l, StringComparison.OrdinalIgnoreCase) || a.Code.Equals(l, StringComparison.OrdinalIgnoreCase));
-            }
-
-            if (lang != null)
-            {
-                outputFile.LangCode = lang.Code;
-                if (string.IsNullOrEmpty(outputFile.Description))
-                    outputFile.Description = outputFile.MediaType == Common.Enum.MediaType.SUBTITLES ? lang.Description : lang.DescriptionAudio;
-            }
-            else if (outputFile.LangCode == null) 
-            {
-                outputFile.LangCode = "und"; //无法识别直接置为und
-            }
-
-            //无描述，则把LangCode当作描述
-            if (string.IsNullOrEmpty(outputFile.Description)) outputFile.Description = originalLangCode;
+            outputFile.LangCode = lang.Code;
+            if (string.IsNullOrEmpty(outputFile.Description))
+                outputFile.Description = outputFile.MediaType == Common.Enum.MediaType.SUBTITLES ? lang.Description : lang.DescriptionAudio;
         }
+        else
+        {
+            outputFile.LangCode = "und"; // 无法识别直接置为und
+        }
+
+        // 无描述，则把LangCode当作描述
+        if (string.IsNullOrEmpty(outputFile.Description)) outputFile.Description = originalLangCode;
     }
 }

src/N_m3u8DL-RE/Util/LargeSingleFileSplitUtil.cs

@@ -1,122 +1,113 @@
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Util;
-using NiL.JS.Expressions;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net.Http;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static class LargeSingleFileSplitUtil
 {
-    internal class LargeSingleFileSplitUtil
+    class Clip
     {
-        class Clip
+        public required int Index;
+        public required long From;
+        public required long To;
+    }
+
+    /// <summary>
+    /// URL大文件切片处理
+    /// </summary>
+    /// <param name="segment"></param>
+    /// <param name="headers"></param>
+    /// <returns></returns>
+    public static async Task<List<MediaSegment>?> SplitUrlAsync(MediaSegment segment, Dictionary<string,string> headers)
+    {
+        var url = segment.Url;
+        if (!await CanSplitAsync(url, headers)) return null;
+
+        if (segment.StartRange != null) return null;
+
+        long fileSize = await GetFileSizeAsync(url, headers);
+        if (fileSize == 0) return null;
+
+        List<Clip> allClips = GetAllClips(url, fileSize);
+        var splitSegments = new List<MediaSegment>();
+        foreach (Clip clip in allClips)
         {
-            public required int index;
-            public required long from;
-            public required long to;
+            splitSegments.Add(new MediaSegment()
+            {
+                Index = clip.Index,
+                Url = url,
+                StartRange = clip.From,
+                ExpectLength = clip.To == -1 ? null : clip.To - clip.From + 1,
+                EncryptInfo = segment.EncryptInfo,
+            });
         }
 
-        /// <summary>
-        /// URL大文件切片处理
-        /// </summary>
-        /// <param name="url"></param>
-        /// <param name="headers"></param>
-        /// <param name="splitSegments"></param>
-        /// <returns></returns>
-        public static async Task<List<MediaSegment>?> SplitUrlAsync(MediaSegment segment, Dictionary<string,string> headers)
+        return splitSegments;
+    }
+
+    public static async Task<bool> CanSplitAsync(string url, Dictionary<string, string> headers)
+    {
+        try
         {
-            var url = segment.Url;
-            if (!await CanSplitAsync(url, headers)) return null;
+            var request = new HttpRequestMessage(HttpMethod.Head, url);
+            var response = (await HTTPUtil.AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead)).EnsureSuccessStatusCode();
+            bool supportsRangeRequests = response.Headers.Contains("Accept-Ranges");
 
-            if (segment.StartRange != null) return null;
-
-            long fileSize = await GetFileSizeAsync(url, headers);
-            if (fileSize == 0) return null;
-
-            List<Clip> allClips = GetAllClips(url, fileSize);
-            var splitSegments = new List<MediaSegment>();
-            foreach (Clip clip in allClips)
-            {
-                splitSegments.Add(new MediaSegment()
-                {
-                    Index = clip.index,
-                    Url = url,
-                    StartRange = clip.from,
-                    ExpectLength = clip.to == -1 ? null : clip.to - clip.from + 1,
-                    EncryptInfo = segment.EncryptInfo,
-                });
-            }
-
-            return splitSegments;
+            return supportsRangeRequests;
         }
-
-        public static async Task<bool> CanSplitAsync(string url, Dictionary<string, string> headers)
+        catch (Exception ex)
         {
-            try
-            {
-                var request = new HttpRequestMessage(HttpMethod.Head, url);
-                var response = (await HTTPUtil.AppHttpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead)).EnsureSuccessStatusCode();
-                bool supportsRangeRequests = response.Headers.Contains("Accept-Ranges");
-
-                return supportsRangeRequests;
-            }
-            catch (Exception ex)
-            {
-                Logger.DebugMarkUp(ex.Message);
-                return false;
-            }
-        }
-
-        private static async Task<long> GetFileSizeAsync(string url, Dictionary<string, string> headers)
-        {
-            using var httpRequestMessage = new HttpRequestMessage();
-            httpRequestMessage.RequestUri = new(url);
-            foreach (var header in headers)
-            {
-                httpRequestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value);
-            }
-            var response = (await HTTPUtil.AppHttpClient.SendAsync(httpRequestMessage, HttpCompletionOption.ResponseHeadersRead)).EnsureSuccessStatusCode();
-            long totalSizeBytes = response.Content.Headers.ContentLength ?? 0;
-
-            return totalSizeBytes;
-        }
-
-        //此函数主要是切片下载逻辑
-        private static List<Clip> GetAllClips(string url, long fileSize)
-        {
-            List<Clip> clips = new();
-            int index = 0;
-            long counter = 0;
-            int perSize = 10 * 1024 * 1024;
-            while (fileSize > 0)
-            {
-                Clip c = new()
-                {
-                    index = index,
-                    from = counter,
-                    to = counter + perSize
-                };
-                //没到最后
-                if (fileSize - perSize > 0)
-                {
-                    fileSize -= perSize;
-                    counter += perSize + 1;
-                    index++;
-                    clips.Add(c);
-                }
-                //已到最后
-                else
-                {
-                    c.to = -1;
-                    clips.Add(c);
-                    break;
-                }
-            }
-            return clips;
+            Logger.DebugMarkUp(ex.Message);
+            return false;
         }
     }
+
+    private static async Task<long> GetFileSizeAsync(string url, Dictionary<string, string> headers)
+    {
+        using var httpRequestMessage = new HttpRequestMessage();
+        httpRequestMessage.RequestUri = new(url);
+        foreach (var header in headers)
+        {
+            httpRequestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value);
+        }
+        var response = (await HTTPUtil.AppHttpClient.SendAsync(httpRequestMessage, HttpCompletionOption.ResponseHeadersRead)).EnsureSuccessStatusCode();
+        long totalSizeBytes = response.Content.Headers.ContentLength ?? 0;
+
+        return totalSizeBytes;
+    }
+
+    // 此函数主要是切片下载逻辑
+    private static List<Clip> GetAllClips(string url, long fileSize)
+    {
+        List<Clip> clips = [];
+        int index = 0;
+        long counter = 0;
+        int perSize = 10 * 1024 * 1024;
+        while (fileSize > 0)
+        {
+            Clip c = new()
+            {
+                Index = index,
+                From = counter,
+                To = counter + perSize
+            };
+            // 没到最后
+            if (fileSize - perSize > 0)
+            {
+                fileSize -= perSize;
+                counter += perSize + 1;
+                index++;
+                clips.Add(c);
+            }
+            // 已到最后
+            else
+            {
+                c.To = -1;
+                clips.Add(c);
+                break;
+            }
+        }
+        return clips;
+    }
 }

src/N_m3u8DL-RE/Util/MP4DecryptUtil.cs

@@ -1,180 +1,219 @@
 using Mp4SubtitleParser;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Resource;
-using N_m3u8DL_RE.Config;
 using System.Diagnostics;
 using System.Text.RegularExpressions;
+using N_m3u8DL_RE.Enum;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static partial class MP4DecryptUtil
 {
-    internal class MP4DecryptUtil
+    private static readonly string ZeroKid = "00000000000000000000000000000000";
+    public static async Task<bool> DecryptAsync(DecryptEngine decryptEngine, string bin, string[]? keys, string source, string dest, string? kid, string init = "", bool isMultiDRM=false)
     {
-        private static string ZeroKid = "00000000000000000000000000000000";
-        public static async Task<bool> DecryptAsync(bool shakaPackager, string bin, string[]? keys, string source, string dest, string? kid, string init = "", bool isMultiDRM=false)
+        if (keys == null || keys.Length == 0) return false;
+
+        var keyPairs = keys.ToList();
+        string? keyPair = null;
+        string? trackId = null;
+        string? tmpEncFile = null;
+        string? tmpDecFile = null;
+        string? workDir = null;
+
+        if (isMultiDRM)
         {
-            if (keys == null || keys.Length == 0) return false;
+            trackId = "1";
+        }
 
-            string? keyPair = null;
-            string? trackId = null;
+        if (!string.IsNullOrEmpty(kid))
+        {
+            var test = keyPairs.Where(k => k.StartsWith(kid)).ToList();
+            if (test.Count != 0) keyPair = test.First();
+        }
 
-            if (isMultiDRM)
+        // Apple
+        if (kid == ZeroKid)
+        {
+            keyPair = keyPairs.First();
+            trackId = "1";
+        }
+
+        // user only input key, append kid
+        if (keyPair == null && keyPairs.Count == 1 && !keyPairs.First().Contains(':'))
+        {
+            keyPairs = keyPairs.Select(x => $"{kid}:{x}").ToList();
+            keyPair = keyPairs.First();
+        }
+            
+        if (keyPair == null) return false;
+
+        // shakaPackager/ffmpeg 无法单独解密init文件
+        if (source.EndsWith("_init.mp4") && decryptEngine != DecryptEngine.MP4DECRYPT) return false;
+
+        string cmd;
+
+        var tmpFile = "";
+        if (decryptEngine == DecryptEngine.SHAKA_PACKAGER)
+        {
+            var enc = source;
+            // shakaPackager 手动构造文件
+            if (init != "")
             {
-                trackId = "1";
+                tmpFile = Path.ChangeExtension(source, ".itmp");
+                MergeUtil.CombineMultipleFilesIntoSingleFile([init, source], tmpFile);
+                enc = tmpFile;
             }
 
-            if (!string.IsNullOrEmpty(kid))
+            cmd = $"--quiet --enable_raw_key_decryption input=\"{enc}\",stream=0,output=\"{dest}\" " +
+                  $"--keys {(trackId != null ? $"label={trackId}:" : "")}key_id={(trackId != null ? ZeroKid : kid)}:key={keyPair.Split(':')[1]}";
+        }
+        else if (decryptEngine == DecryptEngine.MP4DECRYPT)
+        {
+            if (trackId == null)
             {
-                var test = keys.Where(k => k.StartsWith(kid));
-                if (test.Any()) keyPair = test.First();
-            }
-
-            //Apple
-            if (kid == ZeroKid)
-            {
-                keyPair = keys.First();
-                trackId = "1";
-            }
-
-            if (keyPair == null) return false;
-
-            //shakaPackager 无法单独解密init文件
-            if (source.EndsWith("_init.mp4") && shakaPackager) return false;
-
-            var cmd = "";
-
-            var tmpFile = "";
-            if (shakaPackager)
-            {
-                var enc = source;
-                //shakaPackager 手动构造文件
-                if (init != "")
-                {
-                    tmpFile = Path.ChangeExtension(source, ".itmp");
-                    MergeUtil.CombineMultipleFilesIntoSingleFile(new string[] { init, source }, tmpFile);
-                    enc = tmpFile;
-                }
-
-                cmd = $"--quiet --enable_raw_key_decryption input=\"{enc}\",stream=0,output=\"{dest}\" " +
-                    $"--keys {(trackId != null ? $"label={trackId}:" : "")}key_id={(trackId != null ? ZeroKid : kid)}:key={keyPair.Split(':')[1]}";
+                cmd = string.Join(" ", keyPairs.Select(k => $"--key {k}"));
             }
             else
             {
-                if (trackId == null)
-                {
-                    cmd = string.Join(" ", keys.Select(k => $"--key {k}"));
-                }
-                else
-                {
-                    cmd = string.Join(" ", keys.Select(k => $"--key {trackId}:{k.Split(':')[1]}"));
-                }
-                if (init != "")
-                {
-                    cmd += $" --fragments-info \"{init}\" ";
-                }
-                cmd += $" \"{source}\" \"{dest}\"";
+                cmd = string.Join(" ", keyPairs.Select(k => $"--key {trackId}:{k.Split(':')[1]}"));
+            }
+            // 解决mp4decrypt中文问题 切换到源文件所在目录并改名再解密
+            workDir = Path.GetDirectoryName(source)!;
+            tmpEncFile = Path.Combine(workDir, $"{Guid.NewGuid()}{Path.GetExtension(source)}");
+            tmpDecFile = Path.Combine(workDir, $"{Path.GetFileNameWithoutExtension(tmpEncFile)}_dec{Path.GetExtension(tmpEncFile)}");
+            File.Move(source, tmpEncFile);
+            if (init != "")
+            {
+                var infoFile = Path.GetDirectoryName(init) == workDir ? Path.GetFileName(init) : init;
+                cmd += $" --fragments-info \"{infoFile}\" ";
+            }
+            cmd += $" \"{Path.GetFileName(tmpEncFile)}\" \"{Path.GetFileName(tmpDecFile)}\"";
+        }
+        else
+        {
+            var enc = source;
+            // ffmpeg实时解密 手动构造文件
+            if (init != "")
+            {
+                tmpFile = Path.ChangeExtension(source, ".itmp");
+                MergeUtil.CombineMultipleFilesIntoSingleFile([init, source], tmpFile);
+                enc = tmpFile;
             }
             
-            await RunCommandAsync(bin, cmd);
-
-            if (File.Exists(dest) && new FileInfo(dest).Length > 0)
-            {
-                if (tmpFile != "" && File.Exists(tmpFile)) File.Delete(tmpFile);
-                return true;
-            }
-
-            return false;
+            cmd = $"-loglevel error -nostdin -decryption_key {keyPair.Split(':')[1]} -i \"{enc}\" -c copy \"{dest}\"";
         }
 
-        private static async Task RunCommandAsync(string name, string arg)
+        var isSuccess = await RunCommandAsync(bin, cmd, workDir);
+        
+        // mp4decrypt 还原文件改名操作
+        if (workDir is not null)
         {
-            Logger.DebugMarkUp($"FileName: {name}");
-            Logger.DebugMarkUp($"Arguments: {arg}");
-            await Process.Start(new ProcessStartInfo()
-            {
-                FileName = name,
-                Arguments = arg,
-                //RedirectStandardOutput = true,
-                //RedirectStandardError = true,
-                CreateNoWindow = true,
-                UseShellExecute = false
-            })!.WaitForExitAsync();
+            if (File.Exists(tmpEncFile)) File.Move(tmpEncFile, source);
+            if (File.Exists(tmpDecFile)) File.Move(tmpDecFile, dest);
         }
 
-        /// <summary>
-        /// 从文本文件中查询KID的KEY
-        /// </summary>
-        /// <param name="file">文本文件</param>
-        /// <param name="kid">目标KID</param>
-        /// <returns></returns>
-        public static async Task<string?> SearchKeyFromFileAsync(string? file, string? kid)
+        if (isSuccess)
         {
-            try
-            {
-                if (string.IsNullOrEmpty(file) || !File.Exists(file) || string.IsNullOrEmpty(kid)) 
-                    return null;
-
-                Logger.InfoMarkUp(ResString.searchKey);
-                using var stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read);
-                using var reader = new StreamReader(stream);
-                var line = "";
-                while ((line = await reader.ReadLineAsync()) != null)
-                {
-                    if (line.Trim().StartsWith(kid))
-                    {
-                        Logger.InfoMarkUp($"[green]OK[/] [grey]{line.Trim()}[/]");
-                        return line.Trim();
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                Logger.ErrorMarkUp(ex.Message);
-            }
-            return null;
+            if (tmpFile != "" && File.Exists(tmpFile)) File.Delete(tmpFile);
+            return true;
         }
         
-        public static ParsedMP4Info GetMP4Info(byte[] data)
-        {
-            var info = MP4InitUtil.ReadInit(data);
-            if (info.Scheme != null) Logger.WarnMarkUp($"[grey]Type: {info.Scheme}[/]");
-            if (info.PSSH != null) Logger.WarnMarkUp($"[grey]PSSH(WV): {info.PSSH}[/]");
-            if (info.KID != null) Logger.WarnMarkUp($"[grey]KID: {info.KID}[/]");
-            return info;
-        }
-
-        public static ParsedMP4Info GetMP4Info(string output)
-        {
-            using (var fs = File.OpenRead(output))
-            {
-                var header = new byte[1 * 1024 * 1024]; //1MB
-                fs.Read(header);
-                return GetMP4Info(header);
-            }
-        }
-
-        public static string? ReadInitShaka(string output, string bin)
-        {
-            Regex ShakaKeyIDRegex = new Regex("Key for key_id=([0-9a-f]+) was not found");
-
-            // TODO: handle the case that shaka packager actually decrypted (key ID == ZeroKid)
-            //       - stop process
-            //       - remove {output}.tmp.webm
-            var cmd = $"--quiet --enable_raw_key_decryption input=\"{output}\",stream=0,output=\"{output}.tmp.webm\" " +
-                    $"--keys key_id={ZeroKid}:key={ZeroKid}";
-
-            using var p = new Process();
-            p.StartInfo = new ProcessStartInfo()
-            {
-                FileName = bin,
-                Arguments = cmd,
-                RedirectStandardOutput = true,
-                RedirectStandardError = true,
-                UseShellExecute = false
-            };
-            p.Start();
-            var errorOutput = p.StandardError.ReadToEnd();
-            p.WaitForExit();
-            return ShakaKeyIDRegex.Match(errorOutput).Groups[1].Value;
-        }
+        Logger.Error(ResString.decryptionFailed);
+        return false;
     }
+
+    private static async Task<bool> RunCommandAsync(string name, string arg, string? workDir = null)
+    {
+        Logger.DebugMarkUp($"FileName: {name}");
+        Logger.DebugMarkUp($"Arguments: {arg}");
+        var process = Process.Start(new ProcessStartInfo()
+        {
+            FileName = name,
+            Arguments = arg,
+            // RedirectStandardOutput = true,
+            // RedirectStandardError = true,
+            CreateNoWindow = true,
+            UseShellExecute = false,
+            WorkingDirectory = workDir
+        });
+        await process!.WaitForExitAsync();
+        return process.ExitCode == 0;
+    }
+
+    /// <summary>
+    /// 从文本文件中查询KID的KEY
+    /// </summary>
+    /// <param name="file">文本文件</param>
+    /// <param name="kid">目标KID</param>
+    /// <returns></returns>
+    public static async Task<string?> SearchKeyFromFileAsync(string? file, string? kid)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(file) || !File.Exists(file) || string.IsNullOrEmpty(kid)) 
+                return null;
+
+            Logger.InfoMarkUp(ResString.searchKey);
+            using var stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read);
+            using var reader = new StreamReader(stream);
+            while (await reader.ReadLineAsync() is { } line)
+            {
+                if (!line.Trim().StartsWith(kid)) continue;
+                
+                Logger.InfoMarkUp($"[green]OK[/] [grey]{line.Trim()}[/]");
+                return line.Trim();
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.ErrorMarkUp(ex.Message);
+        }
+        return null;
+    }
+
+    public static ParsedMP4Info GetMP4Info(byte[] data)
+    {
+        var info = MP4InitUtil.ReadInit(data);
+        if (info.Scheme != null) Logger.WarnMarkUp($"[grey]Type: {info.Scheme}[/]");
+        if (info.PSSH != null) Logger.WarnMarkUp($"[grey]PSSH(WV): {info.PSSH}[/]");
+        if (info.KID != null) Logger.WarnMarkUp($"[grey]KID: {info.KID}[/]");
+        return info;
+    }
+
+    public static ParsedMP4Info GetMP4Info(string output)
+    {
+        using var fs = File.OpenRead(output);
+        var header = new byte[1 * 1024 * 1024]; // 1MB
+        _ = fs.Read(header);
+        return GetMP4Info(header);
+    }
+
+    public static string? ReadInitShaka(string output, string bin)
+    {
+        Regex shakaKeyIdRegex = KidOutputRegex();
+
+        // TODO: handle the case that shaka packager actually decrypted (key ID == ZeroKid)
+        //       - stop process
+        //       - remove {output}.tmp.webm
+        var cmd = $"--quiet --enable_raw_key_decryption input=\"{output}\",stream=0,output=\"{output}.tmp.webm\" " +
+                  $"--keys key_id={ZeroKid}:key={ZeroKid}";
+
+        using var p = new Process();
+        p.StartInfo = new ProcessStartInfo()
+        {
+            FileName = bin,
+            Arguments = cmd,
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            UseShellExecute = false
+        };
+        p.Start();
+        var errorOutput = p.StandardError.ReadToEnd();
+        p.WaitForExit();
+        return shakaKeyIdRegex.Match(errorOutput).Groups[1].Value;
+    }
+
+    [GeneratedRegex("Key for key_id=([0-9a-f]+) was not found")]
+    private static partial Regex KidOutputRegex();
 }

src/N_m3u8DL-RE/Util/MediainfoUtil.cs

@@ -1,99 +1,92 @@
 using N_m3u8DL_RE.Entity;
-using System;
-using System.Collections.Generic;
 using System.Diagnostics;
-using System.Linq;
-using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-using System.Xml.Linq;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static partial class MediainfoUtil
 {
-    internal partial class MediainfoUtil
+    [GeneratedRegex("  Stream #.*")]
+    private static partial Regex TextRegex();
+    [GeneratedRegex(@"#0:\d(\[0x\w+?\])")]
+    private static partial Regex IdRegex();
+    [GeneratedRegex(": (\\w+): (.*)")]
+    private static partial Regex TypeRegex();
+    [GeneratedRegex("(.*?)(,|$)")]
+    private static partial Regex BaseInfoRegex();
+    [GeneratedRegex(@" \/ 0x\w+")]
+    private static partial Regex ReplaceRegex();
+    [GeneratedRegex(@"\d{2,}x\d+")]
+    private static partial Regex ResRegex();
+    [GeneratedRegex(@"\d+ kb\/s")]
+    private static partial Regex BitrateRegex();
+    [GeneratedRegex(@"(\d+(\.\d+)?) fps")]
+    private static partial Regex FpsRegex();
+    [GeneratedRegex(@"DOVI configuration record.*profile: (\d).*compatibility id: (\d)")]
+    private static partial Regex DoViRegex();
+    [GeneratedRegex(@"Duration.*?start: (\d+\.?\d{0,3})")]
+    private static partial Regex StartRegex();
+
+    public static async Task<List<Mediainfo>> ReadInfoAsync(string binary, string file)
     {
-        [GeneratedRegex("  Stream #.*")]
-        private static partial Regex TextRegex();
-        [GeneratedRegex("#0:\\d(\\[0x\\w+?\\])")]
-        private static partial Regex IdRegex();
-        [GeneratedRegex(": (\\w+): (.*)")]
-        private static partial Regex TypeRegex();
-        [GeneratedRegex("(.*?)(,|$)")]
-        private static partial Regex BaseInfoRegex();
-        [GeneratedRegex(" \\/ 0x\\w+")]
-        private static partial Regex ReplaceRegex();
-        [GeneratedRegex("\\d{2,}x\\d+")]
-        private static partial Regex ResRegex();
-        [GeneratedRegex("\\d+ kb\\/s")]
-        private static partial Regex BitrateRegex();
-        [GeneratedRegex("(\\d+(\\.\\d+)?) fps")]
-        private static partial Regex FpsRegex();
-        [GeneratedRegex("DOVI configuration record.*profile: (\\d).*compatibility id: (\\d)")]
-        private static partial Regex DoViRegex();
-        [GeneratedRegex("Duration.*?start: (\\d+\\.?\\d{0,3})")]
-        private static partial Regex StartRegex();
+        var result = new List<Mediainfo>();
 
-        public static async Task<List<Mediainfo>> ReadInfoAsync(string binary, string file)
+        if (string.IsNullOrEmpty(file) || !File.Exists(file)) return result;
+
+        string cmd = "-hide_banner -i \"" + file + "\"";
+        var p = Process.Start(new ProcessStartInfo()
         {
-            var result = new List<Mediainfo>();
+            FileName = binary,
+            Arguments = cmd,
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            UseShellExecute = false
+        })!;
+        var output = await p.StandardError.ReadToEndAsync();
+        await p.WaitForExitAsync();
 
-            if (string.IsNullOrEmpty(file) || !File.Exists(file)) return result;
-
-            string cmd = "-hide_banner -i \"" + file + "\"";
-            var p = Process.Start(new ProcessStartInfo()
+        foreach (Match stream in TextRegex().Matches(output))
+        {
+            var info = new Mediainfo()
             {
-                FileName = binary,
-                Arguments = cmd,
-                RedirectStandardOutput = true,
-                RedirectStandardError = true,
-                UseShellExecute = false
-            })!;
-            var output = p.StandardError.ReadToEnd();
-            await p.WaitForExitAsync();
+                Text = TypeRegex().Match(stream.Value).Groups[2].Value.TrimEnd(),
+                Id = IdRegex().Match(stream.Value).Groups[1].Value,
+                Type = TypeRegex().Match(stream.Value).Groups[1].Value,
+            };
 
-            foreach (Match stream in TextRegex().Matches(output))
+            info.Resolution = ResRegex().Match(info.Text).Value;
+            info.Bitrate = BitrateRegex().Match(info.Text).Value;
+            info.Fps = FpsRegex().Match(info.Text).Value;
+            info.BaseInfo = BaseInfoRegex().Match(info.Text).Groups[1].Value;
+            info.BaseInfo = ReplaceRegex().Replace(info.BaseInfo, "");
+            info.HDR = info.Text.Contains("/bt2020/");
+
+            if (info.BaseInfo.Contains("dvhe")
+                || info.BaseInfo.Contains("dvh1")
+                || info.BaseInfo.Contains("DOVI")
+                || info.Type.Contains("dvvideo")
+                || (DoViRegex().IsMatch(output) && info.Type == "Video")
+               )
+                info.DolbyVison = true;
+
+            if (StartRegex().IsMatch(output))
             {
-                var info = new Mediainfo()
-                {
-                    Text = TypeRegex().Match(stream.Value).Groups[2].Value.TrimEnd(),
-                    Id = IdRegex().Match(stream.Value).Groups[1].Value,
-                    Type = TypeRegex().Match(stream.Value).Groups[1].Value,
-                };
-
-                info.Resolution = ResRegex().Match(info.Text).Value;
-                info.Bitrate = BitrateRegex().Match(info.Text).Value;
-                info.Fps = FpsRegex().Match(info.Text).Value;
-                info.BaseInfo = BaseInfoRegex().Match(info.Text).Groups[1].Value;
-                info.BaseInfo = ReplaceRegex().Replace(info.BaseInfo, "");
-                info.HDR = info.Text.Contains("/bt2020/");
-
-                if (info.BaseInfo.Contains("dvhe")
-                    || info.BaseInfo.Contains("dvh1")
-                    || info.BaseInfo.Contains("DOVI")
-                    || info.Type.Contains("dvvideo")
-                    || (DoViRegex().IsMatch(output) && info.Type == "Video")
-                    )
-                    info.DolbyVison = true;
-
-                if (StartRegex().IsMatch(output))
-                {
-                    var f = StartRegex().Match(output).Groups[1].Value;
-                    if (double.TryParse(f, out var d))
-                        info.StartTime = TimeSpan.FromSeconds(d);
-                }
-
-                result.Add(info);
+                var f = StartRegex().Match(output).Groups[1].Value;
+                if (double.TryParse(f, out var d))
+                    info.StartTime = TimeSpan.FromSeconds(d);
             }
 
-            if (result.Count == 0)
-            {
-                result.Add(new Mediainfo()
-                {
-                    Type = "Unknown"
-                });
-            }
-
-            return result;
+            result.Add(info);
         }
+
+        if (result.Count == 0)
+        {
+            result.Add(new Mediainfo
+            {
+                Type = "Unknown"
+            });
+        }
+
+        return result;
     }
 }

src/N_m3u8DL-RE/Util/MergeUtil.cs

@@ -1,298 +1,285 @@
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Entity;
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.CommandLine;
 using System.Diagnostics;
-using System.Globalization;
-using System.Linq;
 using System.Text;
-using System.Threading.Tasks;
-using System.Xml;
-using System.Xml.Linq;
+using N_m3u8DL_RE.Enum;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static class MergeUtil
 {
-    internal class MergeUtil
+    /// <summary>
+    /// 输入一堆已存在的文件，合并到新文件
+    /// </summary>
+    /// <param name="files"></param>
+    /// <param name="outputFilePath"></param>
+    public static void CombineMultipleFilesIntoSingleFile(string[] files, string outputFilePath)
     {
-        /// <summary>
-        /// 输入一堆已存在的文件，合并到新文件
-        /// </summary>
-        /// <param name="files"></param>
-        /// <param name="outputFilePath"></param>
-        public static void CombineMultipleFilesIntoSingleFile(string[] files, string outputFilePath)
+        if (files.Length == 0) return;
+        if (files.Length == 1)
         {
-            if (files.Length == 0) return;
-            if (files.Length == 1)
-            {
-                FileInfo fi = new FileInfo(files[0]);
-                fi.CopyTo(outputFilePath, true);
-                return;
-            }
-
-            if (!Directory.Exists(Path.GetDirectoryName(outputFilePath)))
-                Directory.CreateDirectory(Path.GetDirectoryName(outputFilePath)!);
-
-            string[] inputFilePaths = files;
-            using (var outputStream = File.Create(outputFilePath))
-            {
-                foreach (var inputFilePath in inputFilePaths)
-                {
-                    if (inputFilePath == "")
-                        continue;
-                    using (var inputStream = File.OpenRead(inputFilePath))
-                    {
-                        inputStream.CopyTo(outputStream);
-                    }
-                }
-            }
+            FileInfo fi = new FileInfo(files[0]);
+            fi.CopyTo(outputFilePath, true);
+            return;
         }
 
-        private static int InvokeFFmpeg(string binary, string command, string workingDirectory)
+        if (!Directory.Exists(Path.GetDirectoryName(outputFilePath)))
+            Directory.CreateDirectory(Path.GetDirectoryName(outputFilePath)!);
+
+        var inputFilePaths = files;
+        using var outputStream = File.Create(outputFilePath);
+        foreach (var inputFilePath in inputFilePaths)
         {
-            Logger.DebugMarkUp($"{binary}: {command}");
-
-            using var p = new Process();
-            p.StartInfo = new ProcessStartInfo()
-            {
-                WorkingDirectory = workingDirectory,
-                FileName = binary,
-                Arguments = command,
-                RedirectStandardOutput = true,
-                RedirectStandardError = true,
-                UseShellExecute = false
-            };
-            p.ErrorDataReceived += (sendProcess, output) =>
-            {
-                if (!string.IsNullOrEmpty(output.Data))
-                {
-                    Logger.WarnMarkUp($"[grey]{output.Data.EscapeMarkup()}[/]");
-                }
-            };
-            p.Start();
-            p.BeginErrorReadLine();
-            p.WaitForExit();
-            return p.ExitCode;
-        }
-
-        public static string[] PartialCombineMultipleFiles(string[] files)
-        {
-            var newFiles = new List<string>();
-            int div = 0;
-            if (files.Length <= 90000)
-                div = 100;
-            else
-                div = 200;
-
-            string outputName = Path.Combine(Path.GetDirectoryName(files[0])!, "T");
-            int index = 0; //序号
-
-            //按照div的容量分割为小数组
-            string[][] li = Enumerable.Range(0, files.Count() / div + 1).Select(x => files.Skip(x * div).Take(div).ToArray()).ToArray();
-            foreach (var items in li)
-            {
-                if (items.Count() == 0)
-                    continue;
-                var output = outputName + index.ToString("0000") + ".ts";
-                CombineMultipleFilesIntoSingleFile(items, output);
-                newFiles.Add(output);
-                //合并后删除这些文件
-                foreach (var item in items)
-                {
-                    File.Delete(item);
-                }
-                index++;
-            }
-
-            return newFiles.ToArray();
-        }
-
-        public static bool MergeByFFmpeg(string binary, string[] files, string outputPath, string muxFormat, bool useAACFilter,
-            bool fastStart = false,
-            bool writeDate = true, bool useConcatDemuxer = false, string poster = "", string audioName = "", string title = "",
-            string copyright = "", string comment = "", string encodingTool = "", string recTime = "")
-        {
-            //改为绝对路径
-            outputPath = Path.GetFullPath(outputPath);
-
-            string dateString = string.IsNullOrEmpty(recTime) ? DateTime.Now.ToString("o") : recTime;
-
-            StringBuilder command = new StringBuilder("-loglevel warning -nostdin ");
-            string ddpAudio = string.Empty;
-            string addPoster = "-map 1 -c:v:1 copy -disposition:v:1 attached_pic";
-            ddpAudio = (File.Exists($"{Path.GetFileNameWithoutExtension(outputPath + ".mp4")}.txt") ? File.ReadAllText($"{Path.GetFileNameWithoutExtension(outputPath + ".mp4")}.txt") : "");
-            if (!string.IsNullOrEmpty(ddpAudio)) useAACFilter = false;
-
-            if (useConcatDemuxer)
-            {
-                // 使用 concat demuxer合并
-                var text = string.Join(Environment.NewLine, files.Select(f => $"file '{f}'"));
-                var tempFile = Path.GetTempFileName();
-                File.WriteAllText(tempFile, text);
-                command.Append($" -f concat -safe 0 -i \"{tempFile}");
-            }
-            else
-            {
-                command.Append(" -i concat:\"");
-                foreach (string t in files)
-                {
-                    command.Append(Path.GetFileName(t) + "|");
-                }
-            }
-
-
-            switch (muxFormat.ToUpper())
-            {
-                case ("MP4"):
-                    command.Append("\" " + (string.IsNullOrEmpty(poster) ? "" : "-i \"" + poster + "\""));
-                    command.Append(" " + (string.IsNullOrEmpty(ddpAudio) ? "" : "-i \"" + ddpAudio + "\""));
-                    command.Append(
-                        $" -map 0:v? {(string.IsNullOrEmpty(ddpAudio) ? "-map 0:a?" : $"-map {(string.IsNullOrEmpty(poster) ? "1" : "2")}:a -map 0:a?")} -map 0:s? " + (string.IsNullOrEmpty(poster) ? "" : addPoster)
-                        + (writeDate ? " -metadata date=\"" + dateString + "\"" : "") +
-                        " -metadata encoding_tool=\"" + encodingTool + "\" -metadata title=\"" + title +
-                        "\" -metadata copyright=\"" + copyright + "\" -metadata comment=\"" + comment +
-                        $"\" -metadata:s:a:{(string.IsNullOrEmpty(ddpAudio) ? "0" : "1")} title=\"" + audioName + $"\" -metadata:s:a:{(string.IsNullOrEmpty(ddpAudio) ? "0" : "1")} handler=\"" + audioName + "\" ");
-                    command.Append(string.IsNullOrEmpty(ddpAudio) ? "" : " -metadata:s:a:0 title=\"DD+\" -metadata:s:a:0 handler=\"DD+\" ");
-                    if (fastStart)
-                        command.Append("-movflags +faststart");
-                    command.Append("  -c copy -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".mp4\"");
-                    break;
-                case ("MKV"):
-                    command.Append("\" -map 0  -c copy -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".mkv\"");
-                    break;
-                case ("FLV"):
-                    command.Append("\" -map 0  -c copy -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".flv\"");
-                    break;
-                case ("M4A"):
-                    command.Append("\" -map 0  -c copy -f mp4 -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".m4a\"");
-                    break;
-                case ("TS"):
-                    command.Append("\" -map 0  -c copy -y -f mpegts -bsf:v h264_mp4toannexb \"" + outputPath + ".ts\"");
-                    break;
-                case ("EAC3"):
-                    command.Append("\" -map 0:a -c copy -y \"" + outputPath + ".eac3\"");
-                    break;
-                case ("AAC"):
-                    command.Append("\" -map 0:a -c copy -y \"" + outputPath + ".m4a\"");
-                    break;
-                case ("AC3"):
-                    command.Append("\" -map 0:a -c copy -y \"" + outputPath + ".ac3\"");
-                    break;
-            }
-
-            var code = InvokeFFmpeg(binary, command.ToString(), Path.GetDirectoryName(files[0])!);
-
-            return code == 0;
-        }
-
-        public static bool MuxInputsByFFmpeg(string binary, OutputFile[] files, string outputPath, bool mp4, bool dateinfo)
-        {
-            var ext = mp4 ? "mp4" : "mkv";
-            string dateString = DateTime.Now.ToString("o");
-            StringBuilder command = new StringBuilder("-loglevel warning -nostdin -y -dn ");
-
-            //INPUT
-            foreach (var item in files)
-            {
-                command.Append($" -i \"{item.FilePath}\" ");
-            }
-
-            //MAP
-            for (int i = 0; i < files.Length; i++)
-            {
-                command.Append($" -map {i} ");
-            }
-
-            var srt = files.Any(x => x.FilePath.EndsWith(".srt"));
-
-            if (mp4)
-                command.Append($" -strict unofficial -c:a copy -c:v copy -c:s mov_text "); //mp4不支持vtt/srt字幕，必须转换格式
-            else
-                command.Append($" -strict unofficial -c:a copy -c:v copy -c:s {(srt ? "srt" : "webvtt")} ");
-
-            //CLEAN
-            command.Append(" -map_metadata -1 ");
-
-            //LANG and NAME
-            var streamIndex = 0;
-            for (int i = 0; i < files.Length; i++)
-            {
-                //转换语言代码
-                LanguageCodeUtil.ConvertLangCodeAndDisplayName(files[i]);
-                command.Append($" -metadata:s:{streamIndex} language=\"{files[i].LangCode ?? "und"}\" ");
-                if (!string.IsNullOrEmpty(files[i].Description))
-                {
-                    command.Append($" -metadata:s:{streamIndex} title=\"{files[i].Description}\" ");
-                }
-                /**
-                 * -metadata:s:xx标记的是 输出的第xx个流的metadata，
-                 * 若输入文件存在不止一个流时，这里单纯使用files的index
-                 * 就有可能出现metadata错位的情况，所以加了如下逻辑
-                 */
-                if (files[i].Mediainfos.Count > 0)
-                    streamIndex += files[i].Mediainfos.Count;
-                else
-                    streamIndex++;
-            }
-
-            var videoTracks = files.Where(x => x.MediaType != Common.Enum.MediaType.AUDIO && x.MediaType != Common.Enum.MediaType.SUBTITLES);
-            var audioTracks = files.Where(x => x.MediaType == Common.Enum.MediaType.AUDIO);
-            var subTracks = files.Where(x => x.MediaType == Common.Enum.MediaType.AUDIO);
-            if (videoTracks.Any()) command.Append(" -disposition:v:0 default ");
-            //字幕都不设置默认
-            if (subTracks.Any()) command.Append(" -disposition:s 0 ");
-            if (audioTracks.Any())
-            {
-                //音频除了第一个音轨 都不设置默认
-                command.Append(" -disposition:a:0 default ");
-                for (int i = 1; i < audioTracks.Count(); i++)
-                {
-                    command.Append($" -disposition:a:{i} 0 ");
-                }
-            }
-
-            if (dateinfo) command.Append($" -metadata date=\"{dateString}\" ");
-            command.Append($" -ignore_unknown -copy_unknown ");
-            command.Append($" \"{outputPath}.{ext}\"");
-
-            var code = InvokeFFmpeg(binary, command.ToString(), Environment.CurrentDirectory);
-
-            return code == 0;
-        }
-
-        public static bool MuxInputsByMkvmerge(string binary, OutputFile[] files, string outputPath)
-        {
-            StringBuilder command = new StringBuilder($"-q --output \"{outputPath}.mkv\" ");
-
-            command.Append(" --no-chapters ");
-
-            var dFlag = false;
-
-            //LANG and NAME
-            for (int i = 0; i < files.Length; i++)
-            {
-                //转换语言代码
-                LanguageCodeUtil.ConvertLangCodeAndDisplayName(files[i]);
-                command.Append($" --language 0:\"{files[i].LangCode ?? "und"}\" ");
-                //字幕都不设置默认
-                if (files[i].MediaType == Common.Enum.MediaType.SUBTITLES)
-                    command.Append($" --default-track 0:no ");
-                //音频除了第一个音轨 都不设置默认
-                if (files[i].MediaType == Common.Enum.MediaType.AUDIO)
-                {
-                    if (dFlag)
-                        command.Append($" --default-track 0:no ");
-                    dFlag = true;
-                }
-                if (!string.IsNullOrEmpty(files[i].Description))
-                    command.Append($" --track-name 0:\"{files[i].Description}\" ");
-                command.Append($" \"{files[i].FilePath}\" ");
-            }
-
-            var code = InvokeFFmpeg(binary, command.ToString(), Environment.CurrentDirectory);
-
-            return code == 0;
+            if (inputFilePath == "")
+                continue;
+            using var inputStream = File.OpenRead(inputFilePath);
+            inputStream.CopyTo(outputStream);
         }
     }
+
+    private static int InvokeFFmpeg(string binary, string command, string workingDirectory)
+    {
+        Logger.DebugMarkUp($"{binary}: {command}");
+
+        using var p = new Process();
+        p.StartInfo = new ProcessStartInfo()
+        {
+            WorkingDirectory = workingDirectory,
+            FileName = binary,
+            Arguments = command,
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            UseShellExecute = false
+        };
+        p.ErrorDataReceived += (sendProcess, output) =>
+        {
+            if (!string.IsNullOrEmpty(output.Data))
+            {
+                Logger.WarnMarkUp($"[grey]{output.Data.EscapeMarkup()}[/]");
+            }
+        };
+        p.Start();
+        p.BeginErrorReadLine();
+        p.WaitForExit();
+        return p.ExitCode;
+    }
+
+    public static string[] PartialCombineMultipleFiles(string[] files)
+    {
+        var newFiles = new List<string>();
+        var div = files.Length <= 90000 ? 100 : 200;
+
+        var outputName = Path.Combine(Path.GetDirectoryName(files[0])!, "T");
+        var index = 0; // 序号
+
+        // 按照div的容量分割为小数组
+        var li = Enumerable.Range(0, files.Length / div + 1).Select(x => files.Skip(x * div).Take(div).ToArray()).ToArray();
+        foreach (var items in li)
+        {
+            if (items.Length == 0)
+                continue;
+            var output = outputName + index.ToString("0000") + ".ts";
+            CombineMultipleFilesIntoSingleFile(items, output);
+            newFiles.Add(output);
+            // 合并后删除这些文件
+            foreach (var item in items)
+            {
+                File.Delete(item);
+            }
+            index++;
+        }
+
+        return newFiles.ToArray();
+    }
+
+    public static bool MergeByFFmpeg(string binary, string[] files, string outputPath, string muxFormat, bool useAACFilter,
+        bool fastStart = false,
+        bool writeDate = true, bool useConcatDemuxer = false, string poster = "", string audioName = "", string title = "",
+        string copyright = "", string comment = "", string encodingTool = "", string recTime = "")
+    {
+        // 改为绝对路径
+        outputPath = Path.GetFullPath(outputPath);
+
+        string dateString = string.IsNullOrEmpty(recTime) ? DateTime.Now.ToString("o") : recTime;
+
+        StringBuilder command = new StringBuilder("-loglevel warning -nostdin ");
+        string ddpAudio = string.Empty;
+        string addPoster = "-map 1 -c:v:1 copy -disposition:v:1 attached_pic";
+        ddpAudio = (File.Exists($"{Path.GetFileNameWithoutExtension(outputPath + ".mp4")}.txt") ? File.ReadAllText($"{Path.GetFileNameWithoutExtension(outputPath + ".mp4")}.txt") : "");
+        if (!string.IsNullOrEmpty(ddpAudio)) useAACFilter = false;
+
+        if (useConcatDemuxer)
+        {
+            // 使用 concat demuxer合并
+            var text = string.Join(Environment.NewLine, files.Select(f => $"file '{f}'"));
+            var tempFile = Path.GetTempFileName();
+            File.WriteAllText(tempFile, text);
+            command.Append($" -f concat -safe 0 -i \"{tempFile}");
+        }
+        else
+        {
+            command.Append(" -i concat:\"");
+            foreach (string t in files)
+            {
+                command.Append(Path.GetFileName(t) + "|");
+            }
+        }
+
+
+        switch (muxFormat.ToUpper())
+        {
+            case ("MP4"):
+                command.Append("\" " + (string.IsNullOrEmpty(poster) ? "" : "-i \"" + poster + "\""));
+                command.Append(" " + (string.IsNullOrEmpty(ddpAudio) ? "" : "-i \"" + ddpAudio + "\""));
+                command.Append(
+                    $" -map 0:v? {(string.IsNullOrEmpty(ddpAudio) ? "-map 0:a?" : $"-map {(string.IsNullOrEmpty(poster) ? "1" : "2")}:a -map 0:a?")} -map 0:s? " + (string.IsNullOrEmpty(poster) ? "" : addPoster)
+                    + (writeDate ? " -metadata date=\"" + dateString + "\"" : "") +
+                    " -metadata encoding_tool=\"" + encodingTool + "\" -metadata title=\"" + title +
+                    "\" -metadata copyright=\"" + copyright + "\" -metadata comment=\"" + comment +
+                    $"\" -metadata:s:a:{(string.IsNullOrEmpty(ddpAudio) ? "0" : "1")} title=\"" + audioName + $"\" -metadata:s:a:{(string.IsNullOrEmpty(ddpAudio) ? "0" : "1")} handler=\"" + audioName + "\" ");
+                command.Append(string.IsNullOrEmpty(ddpAudio) ? "" : " -metadata:s:a:0 title=\"DD+\" -metadata:s:a:0 handler=\"DD+\" ");
+                if (fastStart)
+                    command.Append("-movflags +faststart");
+                command.Append("  -c copy -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".mp4\"");
+                break;
+            case ("MKV"):
+                command.Append("\" -map 0  -c copy -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".mkv\"");
+                break;
+            case ("FLV"):
+                command.Append("\" -map 0  -c copy -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".flv\"");
+                break;
+            case ("M4A"):
+                command.Append("\" -map 0  -c copy -f mp4 -y " + (useAACFilter ? "-bsf:a aac_adtstoasc" : "") + " \"" + outputPath + ".m4a\"");
+                break;
+            case ("TS"):
+                command.Append("\" -map 0  -c copy -y -f mpegts -bsf:v h264_mp4toannexb \"" + outputPath + ".ts\"");
+                break;
+            case ("EAC3"):
+                command.Append("\" -map 0:a -c copy -y \"" + outputPath + ".eac3\"");
+                break;
+            case ("AAC"):
+                command.Append("\" -map 0:a -c copy -y \"" + outputPath + ".m4a\"");
+                break;
+            case ("AC3"):
+                command.Append("\" -map 0:a -c copy -y \"" + outputPath + ".ac3\"");
+                break;
+        }
+
+        var code = InvokeFFmpeg(binary, command.ToString(), Path.GetDirectoryName(files[0])!);
+
+        return code == 0;
+    }
+
+    public static bool MuxInputsByFFmpeg(string binary, OutputFile[] files, string outputPath, MuxFormat muxFormat, bool dateinfo)
+    {
+        var ext = OtherUtil.GetMuxExtension(muxFormat);
+        string dateString = DateTime.Now.ToString("o");
+        StringBuilder command = new StringBuilder("-loglevel warning -nostdin -y -dn ");
+
+        // INPUT
+        foreach (var item in files)
+        {
+            command.Append($" -i \"{item.FilePath}\" ");
+        }
+
+        // MAP
+        for (int i = 0; i < files.Length; i++)
+        {
+            command.Append($" -map {i} ");
+        }
+
+        var srt = files.Any(x => x.FilePath.EndsWith(".srt"));
+
+        if (muxFormat == MuxFormat.MP4)
+            command.Append($" -strict unofficial -c:a copy -c:v copy -c:s mov_text "); // mp4不支持vtt/srt字幕，必须转换格式
+        else if (muxFormat == MuxFormat.TS)
+            command.Append($" -strict unofficial -c:a copy -c:v copy ");
+        else if (muxFormat == MuxFormat.MKV)
+            command.Append($" -strict unofficial -c:a copy -c:v copy -c:s {(srt ? "srt" : "webvtt")} ");
+        else throw new ArgumentException($"unknown format: {muxFormat}");
+
+        // CLEAN
+        command.Append(" -map_metadata -1 ");
+
+        // LANG and NAME
+        var streamIndex = 0;
+        for (int i = 0; i < files.Length; i++)
+        {
+            // 转换语言代码
+            LanguageCodeUtil.ConvertLangCodeAndDisplayName(files[i]);
+            command.Append($" -metadata:s:{streamIndex} language=\"{files[i].LangCode ?? "und"}\" ");
+            if (!string.IsNullOrEmpty(files[i].Description))
+            {
+                command.Append($" -metadata:s:{streamIndex} title=\"{files[i].Description}\" ");
+            }
+            /**
+             * -metadata:s:xx标记的是 输出的第xx个流的metadata，
+             * 若输入文件存在不止一个流时，这里单纯使用files的index
+             * 就有可能出现metadata错位的情况，所以加了如下逻辑
+             */
+            if (files[i].Mediainfos.Count > 0)
+                streamIndex += files[i].Mediainfos.Count;
+            else
+                streamIndex++;
+        }
+
+        var videoTracks = files.Where(x => x.MediaType != Common.Enum.MediaType.AUDIO && x.MediaType != Common.Enum.MediaType.SUBTITLES);
+        var audioTracks = files.Where(x => x.MediaType == Common.Enum.MediaType.AUDIO);
+        var subTracks = files.Where(x => x.MediaType == Common.Enum.MediaType.AUDIO);
+        if (videoTracks.Any()) command.Append(" -disposition:v:0 default ");
+        // 字幕都不设置默认
+        if (subTracks.Any()) command.Append(" -disposition:s 0 ");
+        if (audioTracks.Any())
+        {
+            // 音频除了第一个音轨 都不设置默认
+            command.Append(" -disposition:a:0 default ");
+            for (int i = 1; i < audioTracks.Count(); i++)
+            {
+                command.Append($" -disposition:a:{i} 0 ");
+            }
+        }
+
+        if (dateinfo) command.Append($" -metadata date=\"{dateString}\" ");
+        command.Append($" -ignore_unknown -copy_unknown ");
+        command.Append($" \"{outputPath}{ext}\"");
+
+        var code = InvokeFFmpeg(binary, command.ToString(), Environment.CurrentDirectory);
+
+        return code == 0;
+    }
+
+    public static bool MuxInputsByMkvmerge(string binary, OutputFile[] files, string outputPath)
+    {
+        StringBuilder command = new StringBuilder($"-q --output \"{outputPath}.mkv\" ");
+
+        command.Append(" --no-chapters ");
+
+        var dFlag = false;
+
+        // LANG and NAME
+        for (int i = 0; i < files.Length; i++)
+        {
+            // 转换语言代码
+            LanguageCodeUtil.ConvertLangCodeAndDisplayName(files[i]);
+            command.Append($" --language 0:\"{files[i].LangCode ?? "und"}\" ");
+            // 字幕都不设置默认
+            if (files[i].MediaType == Common.Enum.MediaType.SUBTITLES)
+                command.Append($" --default-track 0:no ");
+            // 音频除了第一个音轨 都不设置默认
+            if (files[i].MediaType == Common.Enum.MediaType.AUDIO)
+            {
+                if (dFlag)
+                    command.Append($" --default-track 0:no ");
+                dFlag = true;
+            }
+            if (!string.IsNullOrEmpty(files[i].Description))
+                command.Append($" --track-name 0:\"{files[i].Description}\" ");
+            command.Append($" \"{files[i].FilePath}\" ");
+        }
+
+        var code = InvokeFFmpeg(binary, command.ToString(), Environment.CurrentDirectory);
+
+        return code == 0;
+    }
 }

src/N_m3u8DL-RE/Util/OtherUtil.cs

@@ -1,169 +1,173 @@
-using N_m3u8DL_RE.Common.Entity;
-using N_m3u8DL_RE.Common.Log;
-using N_m3u8DL_RE.Enum;
-using System.CommandLine;
+using N_m3u8DL_RE.Enum;
 using System.IO.Compression;
-using System.Text;
 using System.Text.RegularExpressions;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static partial class OtherUtil
 {
-    internal class OtherUtil
+    public static Dictionary<string, string> SplitHeaderArrayToDic(string[]? headers)
     {
-        public static Dictionary<string, string> SplitHeaderArrayToDic(string[]? headers)
+        Dictionary<string, string> dic = new();
+        if (headers == null) return dic;
+        
+        foreach (string header in headers)
         {
-            Dictionary<string, string> dic = new();
-
-            if (headers != null)
+            var index = header.IndexOf(':');
+            if (index != -1)
             {
-                foreach (string header in headers)
-                {
-                    var index = header.IndexOf(':');
-                    if (index != -1)
-                    {
-                        dic[header[..index].Trim().ToLower()] = header[(index + 1)..].Trim();
-                    }
-                }
-            }
-
-            return dic;
-        }
-
-        private static char[] InvalidChars = "34,60,62,124,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,58,42,63,92,47"
-                .Split(',').Select(s => (char)int.Parse(s)).ToArray();
-        public static string GetValidFileName(string input, string re = ".", bool filterSlash = false)
-        {
-            string title = input;
-            foreach (char invalidChar in InvalidChars)
-            {
-                title = title.Replace(invalidChar.ToString(), re);
-            }
-            if (filterSlash)
-            {
-                title = title.Replace("/", re);
-                title = title.Replace("\\", re);
-            }
-            return title.Trim('.');
-        }
-
-        /// <summary>
-        /// 从输入自动获取文件名
-        /// </summary>
-        /// <param name="input"></param>
-        /// <returns></returns>
-        public static string GetFileNameFromInput(string input, bool addSuffix = true)
-        {
-            var saveName = addSuffix ? DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss") : string.Empty;
-            if (File.Exists(input))
-            {
-                saveName = Path.GetFileNameWithoutExtension(input) + "_" + saveName;
-            }
-            else
-            {
-                var uri = new Uri(input.Split('?').First());
-                var name = Path.GetFileNameWithoutExtension(uri.LocalPath);
-                saveName = GetValidFileName(name) + "_" + saveName;
-            }
-            return saveName;
-        }
-
-        /// <summary>
-        /// 从 hh:mm:ss 解析TimeSpan
-        /// </summary>
-        /// <param name="timeStr"></param>
-        /// <returns></returns>
-        public static TimeSpan ParseDur(string timeStr)
-        {
-            var arr = timeStr.Replace("：", ":").Split(':');
-            var days = -1;
-            var hours = -1;
-            var mins = -1;
-            var secs = -1;
-            arr.Reverse().Select(i => Convert.ToInt32(i)).ToList().ForEach(item =>
-            {
-                if (secs == -1) secs = item;
-                else if (mins == -1) mins = item;
-                else if (hours == -1) hours = item;
-                else if (days == -1) days = item;
-            });
-
-            if (days == -1) days = 0;
-            if (hours == -1) hours = 0;
-            if (mins == -1) mins = 0;
-            if (secs == -1) secs = 0;
-
-            return new TimeSpan(days, hours, mins, secs);
-        }
-
-        /// <summary>
-        /// 从1h3m20s解析出总秒数
-        /// </summary>
-        /// <param name="timeStr"></param>
-        /// <returns></returns>
-        /// <exception cref="ArgumentException"></exception>
-        public static double ParseSeconds(string timeStr)
-        {
-            var pattern = new Regex(@"^(?:(\d+)h)?(?:(\d+)m)?(?:(\d+)s)?$");
-
-            var match = pattern.Match(timeStr);
-
-            if (!match.Success)
-            {
-                throw new ArgumentException("时间格式无效");
-            }
-
-            int hours = match.Groups[1].Success ? int.Parse(match.Groups[1].Value) : 0;
-            int minutes = match.Groups[2].Success ? int.Parse(match.Groups[2].Value) : 0;
-            int seconds = match.Groups[3].Success ? int.Parse(match.Groups[3].Value) : 0;
-
-            return hours * 3600 + minutes * 60 + seconds;
-        }
-
-        //若该文件夹为空，删除，同时判断其父文件夹，直到遇到根目录或不为空的目录
-        public static void SafeDeleteDir(string dirPath)
-        {
-            if (string.IsNullOrEmpty(dirPath) || !Directory.Exists(dirPath))
-                return;
-
-            var parent = Path.GetDirectoryName(dirPath)!;
-            if (!Directory.EnumerateFileSystemEntries(dirPath).Any())
-            {
-                Directory.Delete(dirPath);
-            }
-            else
-            {
-                return;
-            }
-            SafeDeleteDir(parent);
-        }
-
-        /// <summary>
-        /// 解压并替换原文件
-        /// </summary>
-        /// <param name="filePath"></param>
-        public static async Task DeGzipFileAsync(string filePath)
-        {
-            string deGzipFile = Path.ChangeExtension(filePath, ".tmp");
-            try
-            {
-                using (var fileToDecompressAsStream = File.OpenRead(filePath))
-                {
-                    using var decompressedStream = File.Create(deGzipFile);
-                    using var decompressionStream = new GZipStream(fileToDecompressAsStream, CompressionMode.Decompress);
-                    await decompressionStream.CopyToAsync(decompressedStream);
-                }
-                File.Delete(filePath);
-                File.Move(deGzipFile, filePath);
-            }
-            catch 
-            {
-                if (File.Exists(deGzipFile)) File.Delete(deGzipFile);
+                dic[header[..index].Trim().ToLower()] = header[(index + 1)..].Trim();
             }
         }
 
-        public static string GetEnvironmentVariable(string key, string defaultValue = "")
+        return dic;
+    }
+
+    private static readonly char[] InvalidChars = "34,60,62,124,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,58,42,63,92,47"
+        .Split(',').Select(s => (char)int.Parse(s)).ToArray();
+    public static string GetValidFileName(string input, string re = "_", bool filterSlash = false)
+    {
+        var title = InvalidChars.Aggregate(input, (current, invalidChar) => current.Replace(invalidChar.ToString(), re));
+        if (filterSlash)
         {
-            return Environment.GetEnvironmentVariable(key) ?? defaultValue;
+            title = title.Replace("/", re);
+            title = title.Replace("\\", re);
+        }
+        return title.Trim('.');
+    }
+
+    /// <summary>
+    /// 从输入自动获取文件名
+    /// </summary>
+    /// <param name="input"></param>
+    /// <param name="addSuffix"></param>
+    /// <returns></returns>
+    public static string GetFileNameFromInput(string input, bool addSuffix = true)
+    {
+        var saveName = addSuffix ? DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss") : string.Empty;
+        if (File.Exists(input))
+        {
+            saveName = Path.GetFileNameWithoutExtension(input) + "_" + saveName;
+        }
+        else
+        {
+            var uri = new Uri(input.Split('?').First());
+            var name = Path.GetFileNameWithoutExtension(uri.LocalPath);
+            saveName = GetValidFileName(name) + "_" + saveName;
+        }
+        return saveName;
+    }
+
+    /// <summary>
+    /// 从 hh:mm:ss 解析TimeSpan
+    /// </summary>
+    /// <param name="timeStr"></param>
+    /// <returns></returns>
+    public static TimeSpan ParseDur(string timeStr)
+    {
+        var arr = timeStr.Replace("：", ":").Split(':');
+        var days = -1;
+        var hours = -1;
+        var mins = -1;
+        var secs = -1;
+        arr.Reverse().Select(i => Convert.ToInt32(i)).ToList().ForEach(item =>
+        {
+            if (secs == -1) secs = item;
+            else if (mins == -1) mins = item;
+            else if (hours == -1) hours = item;
+            else if (days == -1) days = item;
+        });
+
+        if (days == -1) days = 0;
+        if (hours == -1) hours = 0;
+        if (mins == -1) mins = 0;
+        if (secs == -1) secs = 0;
+
+        return new TimeSpan(days, hours, mins, secs);
+    }
+
+    /// <summary>
+    /// 从1h3m20s解析出总秒数
+    /// </summary>
+    /// <param name="timeStr"></param>
+    /// <returns></returns>
+    /// <exception cref="ArgumentException"></exception>
+    public static double ParseSeconds(string timeStr)
+    {
+        var pattern = TimeStrRegex();
+
+        var match = pattern.Match(timeStr);
+
+        if (!match.Success)
+        {
+            throw new ArgumentException("时间格式无效");
+        }
+
+        int hours = match.Groups[1].Success ? int.Parse(match.Groups[1].Value) : 0;
+        int minutes = match.Groups[2].Success ? int.Parse(match.Groups[2].Value) : 0;
+        int seconds = match.Groups[3].Success ? int.Parse(match.Groups[3].Value) : 0;
+
+        return hours * 3600 + minutes * 60 + seconds;
+    }
+
+    // 若该文件夹为空，删除，同时判断其父文件夹，直到遇到根目录或不为空的目录
+    public static void SafeDeleteDir(string dirPath)
+    {
+        if (string.IsNullOrEmpty(dirPath) || !Directory.Exists(dirPath))
+            return;
+
+        var parent = Path.GetDirectoryName(dirPath)!;
+        if (!Directory.EnumerateFileSystemEntries(dirPath).Any())
+        {
+            Directory.Delete(dirPath);
+        }
+        else
+        {
+            return;
+        }
+        SafeDeleteDir(parent);
+    }
+
+    /// <summary>
+    /// 解压并替换原文件
+    /// </summary>
+    /// <param name="filePath"></param>
+    public static async Task DeGzipFileAsync(string filePath)
+    {
+        var deGzipFile = Path.ChangeExtension(filePath, ".dezip_tmp");
+        try
+        {
+            await using (var fileToDecompressAsStream = File.OpenRead(filePath))
+            {
+                await using var decompressedStream = File.Create(deGzipFile);
+                await using var decompressionStream = new GZipStream(fileToDecompressAsStream, CompressionMode.Decompress);
+                await decompressionStream.CopyToAsync(decompressedStream);
+            };
+            File.Delete(filePath);
+            File.Move(deGzipFile, filePath);
+        }
+        catch 
+        {
+            if (File.Exists(deGzipFile)) File.Delete(deGzipFile);
         }
     }
+
+    public static string GetEnvironmentVariable(string key, string defaultValue = "")
+    {
+        return Environment.GetEnvironmentVariable(key) ?? defaultValue;
+    }
+
+    public static string GetMuxExtension(MuxFormat muxFormat)
+    {
+        return muxFormat switch
+        {
+            MuxFormat.MP4 => ".mp4",
+            MuxFormat.MKV => ".mkv",
+            MuxFormat.TS => ".ts",
+            _ => throw new ArgumentException($"unknown format: {muxFormat}")
+        };
+    }
+
+    [GeneratedRegex(@"^(?:(\d+)h)?(?:(\d+)m)?(?:(\d+)s)?$")]
+    private static partial Regex TimeStrRegex();
 }

src/N_m3u8DL-RE/Util/PipeUtil.cs

@@ -1,113 +1,104 @@
 using N_m3u8DL_RE.Common.Log;
-using N_m3u8DL_RE.Common.Resource;
 using Spectre.Console;
-using System;
-using System.Collections.Generic;
-using System.CommandLine;
 using System.Diagnostics;
 using System.IO.Pipes;
-using System.Linq;
 using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static class PipeUtil
 {
-    internal class PipeUtil
+    public static Stream CreatePipe(string pipeName)
     {
-        public static Stream CreatePipe(string pipeName)
+        if (OperatingSystem.IsWindows())
+        {
+            return new NamedPipeServerStream(pipeName, PipeDirection.InOut);
+        }
+
+        var path = Path.Combine(Path.GetTempPath(), pipeName);
+        using var p = new Process();
+        p.StartInfo = new ProcessStartInfo()
+        {
+            FileName = "mkfifo",
+            Arguments = path,
+            CreateNoWindow = true,
+            UseShellExecute = false,
+            RedirectStandardError = true,
+            RedirectStandardOutput = true,
+        };
+        p.Start();
+        p.WaitForExit();
+        Thread.Sleep(200);
+        return new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read);
+    }
+
+    public static async Task<bool> StartPipeMuxAsync(string binary, string[] pipeNames, string outputPath)
+    {
+        return await Task.Run(async () =>
+        {
+            await Task.Delay(1000);
+            return StartPipeMux(binary, pipeNames, outputPath);
+        });
+    }
+
+    public static bool StartPipeMux(string binary, string[] pipeNames, string outputPath)
+    {
+        string dateString = DateTime.Now.ToString("o");
+        StringBuilder command = new StringBuilder("-y -fflags +genpts -loglevel quiet ");
+
+        string customDest = OtherUtil.GetEnvironmentVariable("RE_LIVE_PIPE_OPTIONS");
+        string pipeDir = OtherUtil.GetEnvironmentVariable("RE_LIVE_PIPE_TMP_DIR", Path.GetTempPath());
+
+        if (!string.IsNullOrEmpty(customDest))
+        {
+            command.Append(" -re ");
+        }
+
+        foreach (var item in pipeNames)
         {
             if (OperatingSystem.IsWindows())
-            {
-                return new NamedPipeServerStream(pipeName, PipeDirection.InOut);
-            }
+                command.Append($" -i \"\\\\.\\pipe\\{item}\" ");
             else
-            {
-                var path = Path.Combine(Path.GetTempPath(), pipeName);
-                using var p = new Process();
-                p.StartInfo = new ProcessStartInfo()
-                {
-                    FileName = "mkfifo",
-                    Arguments = path,
-                    CreateNoWindow = true,
-                    UseShellExecute = false,
-                    RedirectStandardError = true,
-                    RedirectStandardOutput = true,
-                };
-                p.Start();
-                p.WaitForExit();
-                Thread.Sleep(200);
-                return new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read);
-            }
+                // command.Append($" -i \"unix://{Path.Combine(Path.GetTempPath(), $"CoreFxPipe_{item}")}\" ");
+                command.Append($" -i \"{Path.Combine(pipeDir, item)}\" ");
         }
 
-        public static async Task<bool> StartPipeMuxAsync(string binary, string[] pipeNames, string outputPath)
+        for (int i = 0; i < pipeNames.Length; i++)
         {
-            return await Task.Run(async () =>
-            {
-                await Task.Delay(1000);
-                return StartPipeMux(binary, pipeNames, outputPath);
-            });
+            command.Append($" -map {i} ");
         }
 
-        public static bool StartPipeMux(string binary, string[] pipeNames, string outputPath)
+        command.Append(" -strict unofficial -c copy ");
+        command.Append($" -metadata date=\"{dateString}\" ");
+        command.Append($" -ignore_unknown -copy_unknown ");
+
+
+        if (!string.IsNullOrEmpty(customDest))
         {
-            string dateString = DateTime.Now.ToString("o");
-            StringBuilder command = new StringBuilder("-y -fflags +genpts -loglevel quiet ");
-
-            string customDest = OtherUtil.GetEnvironmentVariable("RE_LIVE_PIPE_OPTIONS");
-            string pipeDir = OtherUtil.GetEnvironmentVariable("RE_LIVE_PIPE_TMP_DIR", Path.GetTempPath());
-
-            if (!string.IsNullOrEmpty(customDest))
-            {
-                command.Append(" -re ");
-            }
-
-            foreach (var item in pipeNames)
-            {
-                if (OperatingSystem.IsWindows())
-                    command.Append($" -i \"\\\\.\\pipe\\{item}\" ");
-                else
-                    //command.Append($" -i \"unix://{Path.Combine(Path.GetTempPath(), $"CoreFxPipe_{item}")}\" ");
-                    command.Append($" -i \"{Path.Combine(pipeDir, item)}\" ");
-            }
-
-            for (int i = 0; i < pipeNames.Length; i++)
-            {
-                command.Append($" -map {i} ");
-            }
-
-            command.Append(" -strict unofficial -c copy ");
-            command.Append($" -metadata date=\"{dateString}\" ");
-            command.Append($" -ignore_unknown -copy_unknown ");
-
-
-            if (!string.IsNullOrEmpty(customDest))
-            {
-                if (customDest.Trim().StartsWith("-"))
-                    command.Append(customDest);
-                else
-                    command.Append($" -f mpegts -shortest \"{customDest}\"");
-                Logger.WarnMarkUp($"[deepskyblue1]{command.ToString().EscapeMarkup()}[/]");
-            }
+            if (customDest.Trim().StartsWith('-'))
+                command.Append(customDest);
             else
-            {
-                command.Append($" -f mpegts -shortest \"{outputPath}\"");
-            }
-
-            using var p = new Process();
-            p.StartInfo = new ProcessStartInfo()
-            {
-                WorkingDirectory = Environment.CurrentDirectory,
-                FileName = binary,
-                Arguments = command.ToString(),
-                CreateNoWindow = true,
-                UseShellExecute = false
-            };
-            //p.StartInfo.Environment.Add("FFREPORT", "file=ffreport.log:level=42");
-            p.Start();
-            p.WaitForExit();
-
-            return p.ExitCode == 0;
+                command.Append($" -f mpegts -shortest \"{customDest}\"");
+            Logger.WarnMarkUp($"[deepskyblue1]{command.ToString().EscapeMarkup()}[/]");
         }
+        else
+        {
+            command.Append($" -f mpegts -shortest \"{outputPath}\"");
+        }
+
+        using var p = new Process();
+        p.StartInfo = new ProcessStartInfo()
+        {
+            WorkingDirectory = Environment.CurrentDirectory,
+            FileName = binary,
+            Arguments = command.ToString(),
+            CreateNoWindow = true,
+            UseShellExecute = false
+        };
+        // p.StartInfo.Environment.Add("FFREPORT", "file=ffreport.log:level=42");
+        p.Start();
+        p.WaitForExit();
+
+        return p.ExitCode == 0;
     }
 }

src/N_m3u8DL-RE/Util/SubtitleUtil.cs

@@ -1,40 +1,32 @@
 using N_m3u8DL_RE.Common.Entity;
 using N_m3u8DL_RE.Common.Log;
 using N_m3u8DL_RE.Common.Resource;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
-namespace N_m3u8DL_RE.Util
+namespace N_m3u8DL_RE.Util;
+
+internal static class SubtitleUtil
 {
-    internal class SubtitleUtil
+    /// <summary>
+    /// 写出图形字幕PNG文件
+    /// </summary>
+    /// <param name="finalVtt"></param>
+    /// <param name="tmpDir">临时目录</param>
+    /// <returns></returns>
+    public static async Task TryWriteImagePngsAsync(WebVttSub? finalVtt, string tmpDir)
     {
-        /// <summary>
-        /// 写出图形字幕PNG文件
-        /// </summary>
-        /// <param name="finalVtt"></param>
-        /// <param name="tmpDir">临时目录</param>
-        /// <returns></returns>
-        public static async Task<bool> TryWriteImagePngsAsync(WebVttSub? finalVtt, string tmpDir)
+        if (finalVtt != null && finalVtt.Cues.Any(v => v.Payload.StartsWith("Base64::")))
         {
-            if (finalVtt != null && finalVtt.Cues.Any(v => v.Payload.StartsWith("Base64::")))
+            Logger.WarnMarkUp(ResString.processImageSub);
+            var i = 0;
+            foreach (var img in finalVtt.Cues.Where(v => v.Payload.StartsWith("Base64::")))
             {
-                Logger.WarnMarkUp(ResString.processImageSub);
-                var _i = 0;
-                foreach (var img in finalVtt.Cues.Where(v => v.Payload.StartsWith("Base64::")))
-                {
-                    var name = $"{_i++}.png";
-                    var dest = "";
-                    for (; File.Exists(dest = Path.Combine(tmpDir, name)); name = $"{_i++}.png") ;
-                    var base64 = img.Payload[8..];
-                    await File.WriteAllBytesAsync(dest, Convert.FromBase64String(base64));
-                    img.Payload = name;
-                }
-                return true;
+                var name = $"{i++}.png";
+                var dest = "";
+                for (; File.Exists(dest = Path.Combine(tmpDir, name)); name = $"{i++}.png") ;
+                var base64 = img.Payload[8..];
+                await File.WriteAllBytesAsync(dest, Convert.FromBase64String(base64));
+                img.Payload = name;
             }
-            else return false;
         }
     }
 }