[youtube] Extra subtitles being overwritten

[voltagex]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.05.11
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

youtube-dl.exe --all-subs --skip-download --verbose -f303+251,299+140 https://www.youtube.com/watch?v=jc5DlOkOcU4
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--all-subs', '--skip-download', '--verbose', '-f303+251,299+140', 'https://www.youtube.com/watch?v=jc5DlOkOcU4']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2019.05.11
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: ffmpeg N-92573-gc047901012, ffprobe N-92573-gc047901012, rtmpdump 2.4-20151223-gfa8646d-LibreSSL_2.5.4-x86_64-static
[debug] Proxy map: {}
[youtube] jc5DlOkOcU4: Downloading webpage
[youtube] jc5DlOkOcU4: Downloading video info webpage
[info] jc5DlOkOcU4: downloading video in 2 formats
[info] Writing video subtitles to: M2 - Complete Works _ MY LIFE IN GAMING-jc5DlOkOcU4.en.vtt
[info] Writing video subtitles to: M2 - Complete Works _ MY LIFE IN GAMING-jc5DlOkOcU4.ja.vtt
[info] Writing video subtitles to: M2 - Complete Works _ MY LIFE IN GAMING-jc5DlOkOcU4.es.vtt
[info] Writing video subtitles to: M2 - Complete Works _ MY LIFE IN GAMING-jc5DlOkOcU4.en.vtt
[info] Writing video subtitles to: M2 - Complete Works _ MY LIFE IN GAMING-jc5DlOkOcU4.ja.vtt

Description

https://www.youtube.com/watch?v=jc5DlOkOcU4 contains two sets of English subtitles (not auto-generated). One is a full subtitle, the other is a translation of the Japanese parts of the video. Unfortunately one overwrites the other as they are named the same by youtube-dl.

[dstftw]

You must provide unique output template if downloading multiple formats, e.g. by including format_id.

[voltagex]

@dstftw what do you mean? Subtitles aren't mentioned in https://github.com/ytdl-org/youtube-dl/blob/master/README.md#output-template

Please reopen this. I found the correct timed text at a URL like

https://www.youtube.com/api/timedtext?xorp=True&expire=1558381630&key=yttt1&v=jc5DlOkOcU4&asr_langs=fr%2Cnl%2Cja%2Cpt%2Cen%2Cko%2Cit%2Cde%2Cru%2Ces&hl=en-GB&xoaf=1&caps=asr&sparams=asr_langs%2Ccaps%2Cv%2Cxoaf%2Cxorp%2Cexpire&signature=4A33A9BD71E63A0C8AEB8AEFB3FD5BF429994596.8348805079402DFDFC4F26D26AB0B646AD843185&lang=en&name=Japanese%20Translation&fmt=srv3

timedtext.xml.txt

[remitamine]

English -> https://www.youtube.com/api/timedtext?lang=en&v=jc5DlOkOcU4&fmt=srv3
English - Japanese Translation -> https://www.youtube.com/api/timedtext?lang=en&v=jc5DlOkOcU4&fmt=srv3&name=Japanese%20Translation
only the first one can be downloaded with youtube-dl.

[voltagex]

Thank you, @remitamine