[FFmpeg-trac] #5678(avformat:open): DVD Subtitles broken in 3.1

[FFmpeg]

#5678: DVD Subtitles broken in 3.1
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             Reporter:  FernetMenta  |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  dvdsub       |               Blocked By:
  codecpar regression                |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by FernetMenta):

 I debugged again and had a closer look. Sorry, I have missed some
 important info this morning (was too early :)

 When looking at AVFormatContext, the streams info is correct in codecpar
 (at least codec_type shows AVMEDIA_TYPE_SUBTITLE) but not in deprecated
 codec.

 Hope this helps. I have no idea how to reproduce with ffmpeg only.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5678#comment:16>
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