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[ie] Extract supplemental codecs from DASH manifests (#16827)

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Authored by: chrisellsworth
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chrisellsworth 2026-06-08 23:42:48 -07:00 committed by GitHub
parent bc90c36b13
commit 618b5e446c
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3 changed files with 76 additions and 1 deletions
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45
test/test_InfoExtractor.py
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@ -1415,6 +1415,51 @@ jwplayer("mediaplayer").setup({"abouttext":"Visit Indie DB","aboutlink":"http:\/
},
],
},
), (
# SCTE 214 supplemental codecs (e.g. Dolby AV1)
# Based on unfragmented.mpd with scte214:supplementalCodecs on VIDEO-1 only
'supplemental_codecs',
'https://v.redd.it/hw1x7rcg7zl21/DASHPlaylist.mpd', # mpd_url
'https://v.redd.it/hw1x7rcg7zl21', # mpd_base_url
[{
'url': 'https://v.redd.it/hw1x7rcg7zl21/audio',
'manifest_url': 'https://v.redd.it/hw1x7rcg7zl21/DASHPlaylist.mpd',
'ext': 'm4a',
'format_id': 'AUDIO-1',
'format_note': 'DASH audio',
'container': 'm4a_dash',
'acodec': 'mp4a.40.2',
'vcodec': 'none',
'tbr': 129.87,
'asr': 48000,
}, {
'url': 'https://v.redd.it/hw1x7rcg7zl21/DASH_240',
'manifest_url': 'https://v.redd.it/hw1x7rcg7zl21/DASHPlaylist.mpd',
'ext': 'mp4',
'format_id': 'VIDEO-2',
'format_note': 'DASH video',
'container': 'mp4_dash',
'acodec': 'none',
'vcodec': 'avc1.4d401e',
'tbr': 608.0,
'width': 240,
'height': 240,
'fps': 30,
}, {
'url': 'https://v.redd.it/hw1x7rcg7zl21/DASH_360',
'manifest_url': 'https://v.redd.it/hw1x7rcg7zl21/DASHPlaylist.mpd',
'ext': 'mp4',
'format_id': 'VIDEO-1',
'format_note': 'DASH video, dav1.10.02',
'container': 'mp4_dash',
'acodec': 'none',
'vcodec': 'avc1.4d401e',
'tbr': 804.261,
'width': 360,
'height': 360,
'fps': 30,
}],
{},
),
]

28
test/testdata/mpd/supplemental_codecs.mpd vendored Normal file
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@ -0,0 +1,28 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<MPD mediaPresentationDuration="PT54.915S" minBufferTime="PT1.500S" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" type="static" xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:scte214="urn:scte:dash:scte214-extensions">
<Period duration="PT54.915S">
<AdaptationSet segmentAlignment="true" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
<Representation bandwidth="804261" codecs="avc1.4d401e" frameRate="30" height="360" id="VIDEO-1" mimeType="video/mp4" scte214:supplementalCodecs="dav1.10.02" startWithSAP="1" width="360">
<BaseURL>DASH_360</BaseURL>
<SegmentBase indexRange="915-1114" indexRangeExact="true">
<Initialization range="0-914"/>
</SegmentBase>
</Representation>
<Representation bandwidth="608000" codecs="avc1.4d401e" frameRate="30" height="240" id="VIDEO-2" mimeType="video/mp4" startWithSAP="1" width="240">
<BaseURL>DASH_240</BaseURL>
<SegmentBase indexRange="913-1112" indexRangeExact="true">
<Initialization range="0-912"/>
</SegmentBase>
</Representation>
</AdaptationSet>
<AdaptationSet>
<Representation audioSamplingRate="48000" bandwidth="129870" codecs="mp4a.40.2" id="AUDIO-1" mimeType="audio/mp4" startWithSAP="1">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>audio</BaseURL>
<SegmentBase indexRange="832-1007" indexRangeExact="true">
<Initialization range="0-831"/>
</SegmentBase>
</Representation>
</AdaptationSet>
</Period>
</MPD>

4
yt_dlp/extractor/common.py
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@ -2970,6 +2970,8 @@ class InfoExtractor:
content_type = representation_attrib.get('contentType', mime_type.split('/')[0])
codec_str = representation_attrib.get('codecs', '')
supplemental_codecs = representation_attrib.get(
'{urn:scte:dash:scte214-extensions}supplementalCodecs')
# Some kind of binary subtitle found in some youtube livestreams
if mime_type == 'application/x-rawcc':
codecs = {'scodec': codec_str}
@ -3025,7 +3027,7 @@ class InfoExtractor:
'asr': int_or_none(representation_attrib.get('audioSamplingRate')),
'fps': int_or_none(representation_attrib.get('frameRate')),
'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None,
'format_note': f'DASH {content_type}',
'format_note': join_nonempty(f'DASH {content_type}', supplemental_codecs, delim=', '),
'filesize': filesize,
'container': mimetype2ext(mime_type) + '_dash',
**codecs,