[FFmpeg-trac] #8820(avcodec:open): skip_frame nokey skips everything but IDR frames (H.264)

[FFmpeg]

#8820: skip_frame nokey skips everything but IDR frames (H.264)
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             Reporter:               |                    Owner:  (none)
  skippableframe                     |
                 Type:  defect       |                   Status:  open
             Priority:  minor        |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  h264         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 10bc4c3a7df7bb26303067b97311b7eeedfd453e is like that, no? Also please
 reattach the first sample. As for open gop in hevc may be fixed after this
 (AVC may need the same is what I mean):
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/20220218232001.345826-5-u@pkh.me/

 >Some retail Blu-ray disks are encoded with non-IDR I frames throughout

 First of all this is not non-IDR, because no I frame cannot be non-
 keyframe in this case. Second of all, is it even allowed by Blu-ray spec?
 Third of all give an example and a sample.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8820#comment:11>
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