[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
iii.h264
The key frame is generated at the fifth second; but the later is not
incorret; every frame is key frame.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8857>
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