[twitter] Add support for subtitles #14977
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@remitamine Hi, here is a working Twitter video with subtitles: https://twitter.com/themandalorian/status/1188986316194635777 You can see in the video player (at least on desktop) a CC button to turn on captions. |
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this depends on #6106, so support for this type of subtitles has to be added before working on this issue, |
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Thank you, appreciate the clarification 👍 |
Reino17
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…ne audiostreams - Ontleed met extract() i.p.v. tokenize(). - Voeg vanwege XQuery entiteiten vereiste versie declaratie toe. - Laat niet verplicht type voorvoegsel achterwege. - Aanleiding voor ondertiteling: ytdl-org/youtube-dl#14977
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pukkandan
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Authored by fstirlitz Modified from: ytdl-org/youtube-dl#6144 Closes: #73 Fixes: ytdl-org/youtube-dl#6106 ytdl-org/youtube-dl#14977 ytdl-org/youtube-dl#21438 ytdl-org/youtube-dl#23609 ytdl-org/youtube-dl#28132 Might also fix (untested): ytdl-org/youtube-dl#15424 ytdl-org/youtube-dl#18267 ytdl-org/youtube-dl#23899 ytdl-org/youtube-dl#24375 ytdl-org/youtube-dl#24595 ytdl-org/youtube-dl#27899 Related: ytdl-org/youtube-dl#22379 ytdl-org/youtube-dl#24517 ytdl-org/youtube-dl#24886 ytdl-org/youtube-dl#27215 Notes: * The functions `extractor.common._extract_..._formats` are still kept for compatibility * Only some extractors have currently been moved to using `_extract_..._formats_and_subtitles` * Direct subtitle manifests (without a master) are not supported and are wrongly identified as containing video formats * AES support is untested * The fragmented TTML subtitles extracted from DASH/ISM are valid, but are unsupported by `ffmpeg` and most video players * Their XML fragments can be dumped using `ffmpeg -i in.mp4 -f data -map 0 -c copy out.ttml`. Once the unnecessary headers are stripped out of this, it becomes a valid self-contained ttml file * The ttml subs downloaded from DASH manifests can also be directly opened with <https://github.com/SubtitleEdit> * Fragmented WebVTT files extracted from DASH/ISM are also unsupported by most tools * Unlike the ttml files, the XML fragments of these cannot be dumped using `ffmpeg` * The webtt subs extracted from DASH can be parsed by <https://github.com/gpac/gpac> * But validity of the those extracted from ISM are untested
nixxo
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Authored by fstirlitz Modified from: ytdl-org/youtube-dl#6144 Closes: #73 Fixes: ytdl-org/youtube-dl#6106 ytdl-org/youtube-dl#14977 ytdl-org/youtube-dl#21438 ytdl-org/youtube-dl#23609 ytdl-org/youtube-dl#28132 Might also fix (untested): ytdl-org/youtube-dl#15424 ytdl-org/youtube-dl#18267 ytdl-org/youtube-dl#23899 ytdl-org/youtube-dl#24375 ytdl-org/youtube-dl#24595 ytdl-org/youtube-dl#27899 Related: ytdl-org/youtube-dl#22379 ytdl-org/youtube-dl#24517 ytdl-org/youtube-dl#24886 ytdl-org/youtube-dl#27215 Notes: * The functions `extractor.common._extract_..._formats` are still kept for compatibility * Only some extractors have currently been moved to using `_extract_..._formats_and_subtitles` * Direct subtitle manifests (without a master) are not supported and are wrongly identified as containing video formats * AES support is untested * The fragmented TTML subtitles extracted from DASH/ISM are valid, but are unsupported by `ffmpeg` and most video players * Their XML fragments can be dumped using `ffmpeg -i in.mp4 -f data -map 0 -c copy out.ttml`. Once the unnecessary headers are stripped out of this, it becomes a valid self-contained ttml file * The ttml subs downloaded from DASH manifests can also be directly opened with <https://github.com/SubtitleEdit> * Fragmented WebVTT files extracted from DASH/ISM are also unsupported by most tools * Unlike the ttml files, the XML fragments of these cannot be dumped using `ffmpeg` * The webtt subs extracted from DASH can be parsed by <https://github.com/gpac/gpac> * But validity of the those extracted from ISM are untested
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youtube-dl supports Twitter (and works great) but it does not seem to find the subtitles/captions. Here is a video with subtitles - see the "CC" button in bottom right of video player: https://twitter.com/ResidentFOX/status/941025075049803776
When I perform the "youtube-dl --list-subs" command, it says the video has no subtitles (even though it does):
Would be very helpful if youtube-dl could get these. Thanks.
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