[FFmpeg-user] Problem with lowering bit rate

Carl Eugen Hoyos cehoyos at ag.or.at
Sat Nov 10 16:12:50 CET 2012

ywoon <yee.woon2 <at> gmail.com> writes:

> root <at> Name:~# ffmpeg -y -i /fifo/ch1 -vcodec libx264 
> -vprofile main -preset ultrafast -b 50k -minrate 50k 
> -maxrate 50k -bufsize 100k -f flv -threads 0
> -ar 44100 ch1_50.flv 


> [libx264 @ 0x9397f40] kb/s:45.81

You asked for 50k and get 45k which I consider ok for 
1-pass encoding, don't you agree?

Carl Eugen

More information about the ffmpeg-user mailing list