[FFmpeg-user] use q:v and maxrate

[Carl Eugen Hoyos]

YIRAN LI <mrfun.china <at> gmail.com> writes:

> > > ffmpeg.exe -i a.mp4 -c:v mpeg4  -profile:v 15 -vtag DIVX
> > > -bufsize 3080000 -maxrate 8000000 -bt 8000000 -an a.avi
> > > (so that maxbitrate will be 8000kbps)
> >
> > You forgot to set the video bitrate.
> 
> my target is to archieve good quality while keeping bitrate 
> under a certain limit. I want to achieve best quality within 
> this limit.

> For this purpose, what combinations of options should I use?

Set both video bitrate and maximum bitrate (or maximum and 
minimum bitrate).

Carl Eugen