New York Times Closed Caption Not Being Detected #28132
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pukkandan
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Apr 28, 2021
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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Nov 22, 2021
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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I was able to download this video just fine and it plays ok in Chrome. There is also an available closed caption in the New York Times embedded player but upon attempting to list the available subs for this particular video, YTDL tells me that the video has no subtitles. Below is the verbose output from my attempt.
I have tested a couple of videos and YTDL gives the same result for all of them. Thanks for the help! Appreciate your time.
youtube-dl -F https://www.nytimes.com/video/health/100000007056651/covid-ards-acute-respiratory-distress-syndrome.html --list-sub -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-F', 'https://www.nytimes.com/video/health/100000007056651/covid-ards-acute-respiratory-distress-syndrome.html', '--list-sub', '-v']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2021.02.04
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.19041
[debug] exe versions: ffmpeg N-99692-gde59826703, ffprobe N-99692-gde59826703
[debug] Proxy map: {}
[NYTimes] 100000007056651: Downloading video JSON
[NYTimes] 100000007056651: Downloading m3u8 information
[NYTimes] 100000007056651: Downloading m3u8 information
100000007056651 has no subtitles
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