[MPlayer-dev-eng] Re: samples which look bad when encoded with lavc 2-pass needed

[Felix Buenemann]

On Monday 22 July 2002 10:33, Rémi Guyomarch wrote:
> On Mon, Jul 22, 2002 at 01:48:28AM +0200, Michael Niedermayer wrote:
> > On Monday 22 July 2002 00:07, Arpi wrote:
> > > - imho it should change bitrate much more agressively, so decrease more
> > > for simple scenes and increase much for complex parts. i know (at leats
> > > i think i know :)) that it's just a parameter, i even read it somewhere
> > > which one
> > >
> > > :)
> >
> > vqcomp
> >
> > the, new, planned (and not yet written) ratecontrol code, should allow
> > more precisse control so that texture complexity or amount of motion
> > could affect the bitrate independantly
>
> Oh, since you plan to rewrite the rate control code, could you include
> also something to let us push up/down the bitrate (or quantizers) for
> selected sets of the input ? For example to reduce the bitrate pressure
> ending / starting credits put on the rest of the film.
>
> I have an example of something which could be nearly perfectly encoded
> in 790 kbits/s but unfortunately the ending credits which happens to
> scroll up over a live scene take a significant percent of the average
> bitrate [avg br goes from 735 (just before ending credits) to 790
> (real ending of the movie)].
I personally think, that the ending credits deserve enough bitrate, because I 
hate it when they are encoded so low, that you can hardly read anything!
-- 
Best Regards,
        Atmos
____________________________________________
- MPlayer Developer - http://mplayerhq.hu/ -
____________________________________________