[MEncoder-users] Video VBR

[Abu Zaher]

> so with this :
>
> # mencoder in.mpeg -o out.mpeg -of lavf -ovc lavc -lavcopts
> vcodec=mpeg4:vbitrate=64:vhq=4:keyint=60:vpass=1 -lavfopts format=m4v
> -vf scale=176:144 -ofps 6 -nosound
>
> # mencoder in.mpeg -o out.mpeg -of lavf -ovc lavc -lavcopts
> vcodec=mpeg4:vbitrate=64:vhq=4:keyint=60:vpass=2 -lavfopts format=m4v
> -vf scale=176:144 -ofps 6 -nosound
>
> it will be a mpeg4 video track in 64 kb/s VBR ?

The vbitrate option sets the average video bitrate of the file. That
is, if u set the vbitrate=64, the video will still be vbr, the bitrate
will vary from time 2 time depending on the picture complexity, but
the average of the bitrate of the whole video file will be 64kbps.