fix #859

axiomatic-systems · May 29, 2023 · c1fb44c · c1fb44c
1 parent cbea428
commit c1fb44c
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Showing 2 changed files with 3 additions and 6 deletions.
diff --git a/Source/Python/utils/mp4-dash.py b/Source/Python/utils/mp4-dash.py
@@ -558,12 +558,7 @@ def OutputDash(options, set_attributes, audio_sets, video_sets, subtitles_sets,
                     else:
                         scheme_id_uri = DOLBY_AC4_AUDIO_CHANNEL_CONFIGURATION_SCHEME_ID_URI
                 else:
-                    # detect the actual number of channels
-                    sample_description = audio_track.info['sample_descriptions'][0]
-                    if 'mpeg_4_audio_decoder_config' in sample_description:
-                        audio_channel_config_value = str(sample_description['mpeg_4_audio_decoder_config']['channels'])
-                    else:
-                        audio_channel_config_value = str(audio_track.channels)
+                    audio_channel_config_value = str(audio_track.channels)
                     scheme_id_uri = MPEG_DASH_AUDIO_CHANNEL_CONFIGURATION_SCHEME_ID_URI if options.use_legacy_audio_channel_config_uri else ISO_IEC_23001_8_AUDIO_CHANNEL_CONFIGURATION_SCHEME_ID_URI
                 xml.SubElement(representation,
                                'AudioChannelConfiguration',

diff --git a/Source/Python/utils/mp4utils.py b/Source/Python/utils/mp4utils.py
@@ -466,6 +466,8 @@ def __init__(self, parent, info):
                         if stream_type == 'Immersive stereo':
                             self.dolby_ac4_ims = 'Yes'
                         self.channels = str(self.channels)
+            elif 'mpeg_4_audio_decoder_config' in sample_desc:
+                self.channels = sample_desc['mpeg_4_audio_decoder_config']['channels']
 
         self.language = info['language']
         self.language_name = LanguageNames.get(LanguageCodeMap.get(self.language, 'und'), '')