Remove pssh.py and add PSSH generation to stream utils

pssh.py

@@ -1,8 +0,0 @@
-from uuid import UUID
-from pywidevine.pssh import PSSH
-
-
-data = "AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQrKzUjhLvvbqkebbW2/EQtBIQWxKIsxtqP3iaIFYUu9f6xxIQXn4atxoopds39jbUXbiFVBIQUUJpv9uuzWKv4ccKTtooMRIQocf9FUFCoGm775zPIBr3HRoAKgAyADgASABQAA=="
-pssh = PSSH(data)
-pssh.set_key_ids([UUID("540103d1e13713f8ebdc90e468e6f97e"), UUID("acacd48e12efbdbaa479b6d6dbf110b4"), UUID("5b1288b31b6a3f789a205614bbd7fac7"), UUID("514269bfdbaecd62afe1c70a4eda2831"), UUID("a1c7fd154142a069bbef9ccf201af71d")])
-print(pssh)

utils/stream.py

@@ -5,10 +5,12 @@ import os
 import asyncio
 import time
 from typing import Dict, Any
+from uuid import UUID
 
 import requests
 from dotenv import load_dotenv
 import aiohttp
+from pywidevine.pssh import PSSH
 
 load_dotenv()
 
@@ -33,6 +35,25 @@ def fetch_drm_keys(kid: str) -> str:
     return response.json()["key"]
 
 
+def generate_pssh(kid: str) -> str:
+    """Generate a PSSH box for a given KID.
+
+    Args:
+        kid: The key identifier string.
+    
+    Returns:
+        The PSSH box as a base64-encoded string.
+    """
+    default_pssh = (
+        "AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQrKzUjhLvvbqkebbW2/EQtBIQ"
+        "WxKIsxtqP3iaIFYUu9f6xxIQXn4atxoopds39jbUXbiFVBIQUUJpv9uuzWKv4ccKTtooMRIQ"
+        "ocf9FUFCoGm775zPIBr3HRoAKgAyADgASABQAA=="
+    )
+    pssh = PSSH(default_pssh)
+    pssh.set_key_ids([UUID(kid.replace("-", "").lower())])
+    return pssh.dumps()
+
+
 def parse_mpd_manifest(mpd_content: str) -> Dict[str, Any]:
     """Parse an MPD manifest and extract metadata.
 
@@ -194,6 +215,7 @@ def parse_representation(
     return rep_info
 
 
+# pylint: disable=too-many-locals,too-many-branches
 def organize_by_content_type(manifest_info: Dict[str, Any]) -> Dict[str, Any]:
     """Organize manifest information by content type.