[FFmpeg-trac] #8343(avcodec:open): h261dec doesn't mark keyframes

FFmpeg trac at avcodec.org
Fri Apr 4 20:18:31 EEST 2025


#8343: h261dec doesn't mark keyframes
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             Reporter:  Lastique     |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  h261         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 I frames are not the same as key frames. Only IDR frames are key frames in
 AVC/HEVC, e.g.

 Key frame is not about decoding the frame. It is about decoding all frames
 after the key frame.

 Marking all I frames as key frames is a bug in encoder.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8343#comment:8>
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