[FFmpeg-trac] #8196(undetermined:new): ffmpeg X11 grab video too fast
FFmpeg
trac at avcodec.org
Tue Dec 10 02:59:34 EET 2019
#8196: ffmpeg X11 grab video too fast
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Reporter: fld | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: x11grab | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by safinaskar):
I got similar problem one time. I captured screen using x11grab, output
video had mostly correct fps, but there are fragments with unusually high
fps. It turned out that such fragments follow periods when my computer is
in suspend mode. So my guess is so: when computer is suspended, ffmpeg is
unable to capture frames, and when the computer wakes up, ffmpeg tries to
"catch up" and thus temporary raises fps. If I remember correctly I fixed
this by replacing "-r NUMBER" with "-framerate NUMBER"
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Ticket URL: <https://trac.ffmpeg.org/ticket/8196#comment:2>
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