[FFmpeg-trac] #8857(undetermined:new): ffmpeg h264_qsv force_key_frames incorret

FFmpeg trac at avcodec.org
Wed Aug 19 09:08:57 EEST 2020

#8857: ffmpeg h264_qsv force_key_frames  incorret
             Reporter:  mikejson     |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  h264_qsv     |               Blocked By:
  force_key_frames                   |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Summary of the bug:
 How to reproduce:
 when i user ffmpeg command line, like this:
 ./ffmpeg.exe  -c:v mjpeg_qsv -rtbufsize 2000M -s 2560*1440  -f dshow -i
 video="Smart Camera" -vcodec h264_qsv -b:v 6000k -r 30 -preset veryfast
 -tune:v zerolatency  -force_key_frames expr:gte\(t,n_forced*5\)  -g 30*10

 The key frame is generated at the fifth second; but the later is not
 incorret; every frame is key frame.

Ticket URL: <https://trac.ffmpeg.org/ticket/8857>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker

More information about the FFmpeg-trac mailing list