[FFmpeg-trac] #9097(avcodec:new): ffmpeg doesn't filter I frames only with nointra

FFmpeg trac at avcodec.org
Wed Feb 10 08:11:11 EET 2021

#9097: ffmpeg doesn't filter I frames only with nointra
             Reporter:               |                    Owner:
  sergey.anufriev                    |
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  h264         |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |

Comment (by sergey.anufriev):

 Replying to [comment:2 richardpl]:
 > Does ffmpeg returns nonintra frames with that parameters above?
 > Log above contradicts this as only I are shown.

 It returns only several of all I frames that are in sample video.
 Expected: all 52 I frames. Really: only 2 I frames.
 The same result for skip_frames nokey parameter.
 Additionally it isn't seen in ffprobe output difference between I and IDR
 frames to check what type of I frames are in the sample.

Ticket URL: <https://trac.ffmpeg.org/ticket/9097#comment:4>
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