[FFmpeg-user] Wrong FPS while screencasting.

dE . de.techno at gmail.com
Sat Feb 18 06:36:47 CET 2012

On 02/18/12 03:18, Carl Eugen Hoyos wrote:
> dE .<de.techno<at>  gmail.com>  writes:
>> Now, when I screencast, I always see 30 FPS in the output
> That is not true afaict from looking at the output you provided.
> For future reports: Please do not use an external library (x264
> in this case) if an issue is also reproducible without using
> external libraries.
>> fmpeg -f x11grab -s 1280x800 -i :0.0
> Since you do not specify a framerate in your command line,
> the default framerate for x11grab of 30000/1001 is used.
> I suspect this is documented with ffmpeg -h,
> am I correct?
> Carl Eugen
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The problem is only initially. At the start, the FPS is like... 54, 60 
etc... then it reduces to the actual frame rate.

So this's not a problem. Thanks.

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