Add configuration options for FFmpeg

recording/server.conf.in

@@ -94,3 +94,18 @@
 # This must be the same value as configured in the signaling server
 # configuration file.
 #internalsecret = the-shared-secret-for-internal-clients
+
+[ffmpeg]
+# The options given to FFmpeg to encode the audio output. The options given here
+# fully override the default options for the audio output.
+#outputaudio = -c:a libopus
+
+# The options given to FFmpeg to encode the video output. The options given here
+# fully override the default options for the video output.
+#outputvideo = -c:v libvpx -deadline:v realtime -crf 10 -b:v 1M
+
+# The extension of the file for audio only recordings.
+#extensionaudio = .ogg
+
+# The extension of the file for audio and video recordings.
+#extensionvideo = .webm

recording/src/nextcloud/talk/recording/Config.py

@@ -204,4 +204,36 @@ def getSignalingSecret(self, signalingUrl):
 
         return self._configParser.get('signaling', 'internalsecret', fallback=None)
 
+    def getFfmpegOutputAudio(self):
+        """
+        Returns the options given to FFmpeg to encode the audio output.
+
+        Defaults to ['-c:a', 'libopus'].
+        """
+        return self._configParser.get('ffmpeg', 'outputaudio', fallback='-c:a libopus').split()
+
+    def getFfmpegOutputVideo(self):
+        """
+        Returns the options given to FFmpeg to encode the video output.
+
+        Defaults to ['-c:v', 'libvpx', '-deadline:v', 'realtime', '-crf', '10', '-b:v', '1M'].
+        """
+        return self._configParser.get('ffmpeg', 'outputvideo', fallback='-c:v libvpx -deadline:v realtime -crf 10 -b:v 1M').split()
+
+    def getFfmpegExtensionAudio(self):
+        """
+        Returns the extension of the output file for audio recordings.
+
+        Defaults to ".ogg".
+        """
+        return self._configParser.get('ffmpeg', 'extensionaudio', fallback='.ogg')
+
+    def getFfmpegExtensionVideo(self):
+        """
+        Returns the extension of the output file for video recordings.
+
+        Defaults to ".webm".
+        """
+        return self._configParser.get('ffmpeg', 'extensionvideo', fallback='.webm')
+
 config = Config()

recording/src/nextcloud/talk/recording/Service.py

@@ -54,12 +54,12 @@ def getRecorderArgs(status, displayId, audioSinkIndex, width, height, extensionl
     ffmpegCommon = ['ffmpeg', '-loglevel', 'level+warning', '-n']
     ffmpegInputAudio = ['-f', 'pulse', '-i', audioSinkIndex]
     ffmpegInputVideo = ['-f', 'x11grab', '-draw_mouse', '0', '-video_size', f'{width}x{height}', '-i', displayId]
-    ffmpegOutputAudio = ['-c:a', 'libopus']
-    ffmpegOutputVideo = ['-c:v', 'libvpx', '-quality:v', 'realtime']
+    ffmpegOutputAudio = config.getFfmpegOutputAudio()
+    ffmpegOutputVideo = config.getFfmpegOutputVideo()
 
-    extension = '.ogg'
+    extension = config.getFfmpegExtensionAudio()
     if status == RECORDING_STATUS_AUDIO_AND_VIDEO:
-        extension = '.webm'
+        extension = config.getFfmpegExtensionVideo()
 
     outputFileName = extensionlessOutputFileName + extension