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

FFmpeg trac at avcodec.org
Tue Jul 28 01:26:25 EEST 2020

#8820: skip_frame nokey skips everything but IDR frames (H.264)
             Reporter:               |                    Owner:
  skippableframe                     |
                 Type:  defect       |                   Status:  new
             Priority:  minor        |                Component:  avcodec
              Version:  unspecified  |               Resolution:
             Keywords:  h264         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
Changes (by skippableframe):

 * version:  git-master => unspecified


 Thank you. I'll build from git-master.

 What is the expected behavior, please - should `-skip_frame nokey` skip
 everything but IDR frames?

 It appears that `ffprobe -show_frames` identifies all I or IDR frames as
 I assumed that `-skip_frame nokey` would skip those same frames.
 It appears that `-skip_frame nokey` skips all but IDR.

 It's that difference in behavior that surprised me.

Ticket URL: <https://trac.ffmpeg.org/ticket/8820#comment:4>
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