[FFmpeg-trac] #9395(undetermined:new): "-skip_frame nokey" ignored for AV1

FFmpeg trac at avcodec.org
Fri Aug 27 18:41:19 EEST 2021


#9395: "-skip_frame nokey" ignored for AV1
-------------------------------------+-------------------------------------
             Reporter:  nobody       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I want to process video key frames only. I've been using `-skip_frame
 nokey`. This works for other video formats, but not AV1.

 To reproduce this, execute:

 {{{
 ffprobe -select_streams v:0 -show_frames -skip_frame nokey -of compact
 foo.mp4
 }}}

 For AV1, although the output correctly marks frames as `key_frame=1` or
 `key_frame=0`, it includes every frame.

 I am using the ffmpeg builds from https://johnvansickle.com/ffmpeg/.
 Specifically ffmpeg-git-20210724-amd64-static.tar.xz, which says it uses
 libaom 3.1.2.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9395>
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