Merge pull request #437 from Unmanic/pr-encoder_audio_ac3

[encoder_audio_ac3] v0.0.8

source/encoder_audio_ac3/changelog.md

@@ -1,4 +1,7 @@
 
+**<span style="color:#56adda">0.0.8</span>**
+- add check in calculate_bitrate and custom_stream_mapping to set channels to 6 if channels > 6.  ffmpeg cannot encode > 6 channels of ac3 audio.
+
 **<span style="color:#56adda">0.0.7</span>**
 - fix stray character in custom stream mapping function
 

source/encoder_audio_ac3/info.json

@@ -15,5 +15,5 @@
         "on_worker_process": 0
     },
     "tags": "audio,encoder,ffmpeg,library file test",
-    "version": "0.0.7"
+    "version": "0.0.8"
 }

source/encoder_audio_ac3/plugin.py

@@ -139,6 +139,9 @@ def calculate_bitrate(stream_info: dict):
             logger.debug("Stream did not contain 'channels'. Setting max AC3 bit rate (640k).")
             return '640'
 
+        if int(channels) > 6:
+            channels = 6
+
         # Determine bitrate based on source channel count
         if int(channels) <= 2:
             logger.debug("Stream 'channels' is <= 2. Setting AC3 bit rate to 448k.")
@@ -171,6 +174,8 @@ def custom_stream_mapping(self, stream_info: dict, stream_id: int):
                 # Use 64K for the bitrate per channel
                 calculated_bitrate = self.calculate_bitrate(stream_info)
                 channels = int(stream_info.get('channels'))
+                if int(channels) > 6:
+                    channels = 6
                 stream_encoding += [
                     '-ac:a:{}'.format(stream_id), '{}'.format(channels), '-b:a:{}'.format(stream_id), "{}k".format(calculated_bitrate)
                 ]