[MPlayer-users] Re: Low bitrate using 2-pass with libavcodec

[marcogi at libero.it]

On Sun, 21 Apr 2002, Rémi Guyomarch wrote:

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Sun, Apr 21, 2002 at 06:21:44PM +0200, marcogi at libero.it wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > On Sun, 21 Apr 2002, Rémi Guyomarch wrote:
> > > Don't use vhq on the first pass. The second pass will still be encoded
> > > with a lower bitrate than the first, but the difference will be
> > > minimal (less than 10%). Adjust the bitrate accordingly. For example,
> > > on a 10 minutes sample I specified vbitrate=858 and got 797 on the
> > > second pass. The ratio may depend on what you encode.
> > 
> > I did so, but still second pass video has lower quality than first pass.
> 
> Make sure you deleted frameno.avi before -pass 1.

And where third pass take audio from? I should rencode it again?


--
Regards,  Marco Gigante
Student at Pisa University - Computer Engineering