[FFmpeg-user] Wrong FPS while screencasting.

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Feb 17 22:48:26 CET 2012

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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