[MEncoder-users] x264: vbv bufsize
lorenm at u.washington.edu
Sat Dec 8 01:10:50 CET 2007
On Fri, 7 Dec 2007, Nicolas Hesler wrote:
> Thanks. That clears that up. But how do you set min and max bitrate on
> a variable bitrate encode with x264?
vbv_maxrate is maxrate. You can't specify minimum bitrate, because there
aren't any situations in which a minimum bitrate is appropriate. If
maxrate > avgrate, why wouldn't you want easy scenes to compress as much
as possible and leave more bits for the hard scenes? If maxrate == avgrate,
then the encoder must use constant bitrate in order to satisfy both
constraints, so there's no need to separately specify minrate.
More information about the MEncoder-users