[FFmpeg-trac] #11451(avformat:new): Ogg/Theora: Duplicate frames dropped when copying Theora streams

[FFmpeg]

#11451: Ogg/Theora: Duplicate frames dropped when copying Theora streams
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             Reporter:  Bernat      |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Bernat):

 Wait, there's something I overlooked.

 I did my encoding tests using FFmpeg 5.1.6 and it worked well, it only
 failed when copying the video stream. I tried the latest master to see if
 it failed the same when copying streams but didn't try encoding.

 Now, I've tried encoding with the latest master and encoding fails in the
 same way than it fails when copying streams. But when I apply this patch
 encoding works well, it only fails when copying streams.

 So this patch works, it fixes a regression in master that wasn't in 5.1.6.
 It just doesn't fix it when copying streams.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11451#comment:7>
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