[FFmpeg-trac] #8575(avformat:open): SubViewer with higher precision do not work

[FFmpeg]

#8575: SubViewer with higher precision do not work
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             Reporter:  ilario      |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  subviewer   |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by ilario):

 > Where can I download such a subtitle?

 Seems that Youtube allows just the video owner to download the subtitles
 file. The example I posted is a simplified version of the subtitles from
 this video:
 https://www.youtube.com/watch?v=dVSm1OWy_LA

 > Which other software reads it?

 According to Wikipedia, there are various:
 https://en.wikipedia.org/wiki/Comparison_of_subtitle_editors
 like SubtitleComposer and fiveLoadSub.

 There is a bash script here
 https://github.com/kf106/sbv2srt
 which explicitly mentions in its readme the face that ffmpeg fails with
 these files and which produces this output:
 {{{
 1
 00:00:17,880 --> 00:00:22,320
 Mira esos delfines lo bien que viven debajo

 2
 00:00:22,320 --> 00:00:36,199
 Bajo el mar Bajo el mar
 }}}
 which looks correct.

 ​> https://support.google.com/youtube/answer/2734698?hl=en
 > I wonder if Google maybe misunderstood the format...

 In the example included in the link you posted, there are three decimal
 digits for the milliseconds. In other examples I found on the internet
 there are only two decimal digits.

 Seems that ffmpeg supports only the case in which SubViewer files have
 only two decimal digits.

 I could try to make a patch, in case I manage to do that, where should I
 post it?

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Ticket URL: <https://trac.ffmpeg.org/ticket/8575#comment:3>
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