Patch for Streamlink 6.7.3 stable release to add decryption support

streamlink-ffmpeg-dkey.patch

diff -u -r '--exclude=*.txt' streamlink-6.7.3/src/streamlink/session/options.py streamlink-6.7.3-patched/src/streamlink/session/options.py
--- streamlink-6.7.3/src/streamlink/session/options.py  2024-04-14 16:40:22.000000000 +0100
+++ streamlink-6.7.3-patched/src/streamlink/session/options.py  2024-05-09 14:17:43.019823245 +0100
@@ -254,6 +254,10 @@
          - ``str | None``
          - ``None``
          - Set the output format of muxed streams, e.g. ``"matroska"``
+        * - ffmpeg-dkey
+          - ``str | None``
+          - ``None``
+          - Specify the decryption key for DRM-protected content
        * - ffmpeg-video-transcode
          - ``str | None``
          - ``None``
@@ -330,6 +334,7 @@
            "ffmpeg-verbose": False,
            "ffmpeg-verbose-path": None,
            "ffmpeg-fout": None,
+            "ffmpeg-dkey": None,
            "ffmpeg-video-transcode": None,
            "ffmpeg-audio-transcode": None,
            "ffmpeg-copyts": False,
diff -u -r '--exclude=*.txt' streamlink-6.7.3/src/streamlink/stream/dash/dash.py streamlink-6.7.3-patched/src/streamlink/stream/dash/dash.py
--- streamlink-6.7.3/src/streamlink/stream/dash/dash.py 2024-04-14 16:40:22.000000000 +0100
+++ streamlink-6.7.3-patched/src/streamlink/stream/dash/dash.py 2024-05-09 14:18:14.487501406 +0100
@@ -293,11 +293,7 @@
        # Search for suitable video and audio representations
        for aset in mpd.periods[period].adaptationSets:
-            if aset.contentProtections:
-                raise PluginError(f"{source} is protected by DRM")
            for rep in aset.representations:
-                if rep.contentProtections:
-                    raise PluginError(f"{source} is protected by DRM")
                if rep.mimeType.startswith("video"):
                    video.append(rep)
                elif rep.mimeType.startswith("audio"):  # pragma: no branch
diff -u -r '--exclude=*.txt' streamlink-6.7.3/src/streamlink/stream/ffmpegmux.py streamlink-6.7.3-patched/src/streamlink/stream/ffmpegmux.py
--- streamlink-6.7.3/src/streamlink/stream/ffmpegmux.py 2024-04-14 16:40:22.000000000 +0100
+++ streamlink-6.7.3-patched/src/streamlink/stream/ffmpegmux.py 2024-05-09 14:20:08.238360935 +0100
@@ -180,9 +180,14 @@
        maps = options.pop("maps", [])
        copyts = session.options.get("ffmpeg-copyts") or options.pop("copyts", False)
        start_at_zero = session.options.get("ffmpeg-start-at-zero") or options.pop("start_at_zero", False)
+        dkey = session.options.get("ffmpeg-dkey") or options.pop("dkey", False)
        self._cmd = [self.command(session), "-nostats", "-y"]
+        if dkey:
+            self._cmd.extend(['-decryption_key', dkey])
+
        for np in self.pipes:
+            self._cmd.extend(['-thread_queue_size', '32768'])
            self._cmd.extend(["-i", str(np.path)])
        self._cmd.extend(["-c:v", videocodec])
diff -u -r '--exclude=*.txt' streamlink-6.7.3/src/streamlink_cli/argparser.py streamlink-6.7.3-patched/src/streamlink_cli/argparser.py
--- streamlink-6.7.3/src/streamlink_cli/argparser.py    2024-04-14 16:40:22.000000000 +0100
+++ streamlink-6.7.3-patched/src/streamlink_cli/argparser.py    2024-05-09 14:27:16.086298706 +0100
@@ -1141,6 +1141,16 @@
        """,
    )
    transport_ffmpeg.add_argument(
+        "--ffmpeg-dkey",
+        type=str,
+        metavar="DKEY",
+        help="""
+        When attempting to play DRM-protected streams, specify the
+        decryption key to be passed to ffmpeg.
+
+        """
+    )
+    transport_ffmpeg.add_argument(
        "--ffmpeg-video-transcode",
        metavar="CODEC",
        help="""
@@ -1421,6 +1431,7 @@
    ("ffmpeg_verbose", "ffmpeg-verbose", None),
    ("ffmpeg_verbose_path", "ffmpeg-verbose-path", None),
    ("ffmpeg_fout", "ffmpeg-fout", None),
+    ("ffmpeg_dkey", "ffmpeg-dkey", None),
    ("ffmpeg_video_transcode", "ffmpeg-video-transcode", None),
    ("ffmpeg_audio_transcode", "ffmpeg-audio-transcode", None),
    ("ffmpeg_copyts", "ffmpeg-copyts", None),