[FFmpeg-user] Poor quality of screencast 1920x1200 on Linux

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Apr 29 09:26:23 CEST 2014

Bogdan Lotko <boguslaw.lotko <at> chello.at> writes:

> ffmpeg -f x11grab -r 30 -s 1920x1200 -vb 2000 -i :0.0 
> -threads 0 output.xxx

Complete, uncut console output missing.
(-threads 0 is the default)

> With some exceptions (last command and mp4 output file) 
> I've got usable output files, but the quality was a 
> big problem: blurred pixels

If you encode to pix_fmt yuv420p you get blurring, if 
you encode to rgb (or yuv444p) with x264, you get files 
that only FFmpeg (-based software) can decode.

Carl Eugen

More information about the ffmpeg-user mailing list