[FFmpeg-user] Option `-b' seems not to have any effect

Rodolfo Medina rodolfo.medina at gmail.com
Fri Dec 2 16:49:04 CET 2011

Rodolfo Medina <rodolfo.medina at gmail.com> writes:

> Whatever value I put for `-b' (e.g.: -b 64k, -b 32k, -b 0k) the output file
> size remains always 26M.  Is that normal?  If not, how to fix that?  Below is
> ffmpeg's output, and many thanks indeed for any help supported.

Jim Shupert <jshupert at pps-inc.com> writes:

> might you have a 'newer' version that now uses the syntax of
> -b:v 4000k
> no longer
> -b 4000kand then audio is -b:a
> do a help ::: ffmpeg -h
> and look for
> -b bitrate          video bitrate (please use -b:v)

Thanks, but that does not work: the option `-b:v' is `unrecognized'.


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