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

[FFmpeg]

#9395: "-skip_frame nokey" ignored for AV1
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             Reporter:  nobody       |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Description changed by nobody:

Old description:

> 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.

New description:

 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 and libdav1d 0.9.0.

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Ticket URL: <https://trac.ffmpeg.org/ticket/9395#comment:1>
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