[MEncoder-users] CABAC and NoCABAC

[Stjepan Brbot]

The rest of command is exactly the same: first time I put cabac and
second time nocabac in command line x264encopts parameters list and
that's the only difference.

On Tue, 2011-04-05 at 12:31 +0200, Martijn van Beurden wrote:
> What about the rest of your command? For example, if you set a certain 
> bitrate CABAC might reduce the bitrate, hence increasing the PSNR for 
> the same bitrate.
> 
> Op 05-04-11 03:48, Stjepan Brbot schreef:
> > I encoded the same movie twice; first time I had CABAC entropy coding
> > turned on and second time turned off. Although that resulted in
> > different file sizes, since entropy coding is lossless coding, I
> > expected the same PSNR for both encoded movies but psnr parameter
> > reported different figures!!! How's that possible?