[XviD-devel] status of bframes?

[Jim Hauxwell]

The only way to get this encode working anywhere reasonable was to turn
interlacing off.  Even lowering the max quantizer didn't work.  I guess
bframes don't work with interlacing at the moment?

Jim

> -----Original Message-----
> From: xvid-devel-admin@xvid.org [mailto:xvid-devel-admin@xvid.org]On
> Behalf Of Christoph Lampert
> Sent: 04 January 2003 13:34
> To: xvid-devel@xvid.org
> Subject: Re: [XviD-devel] status of bframes?
>
>
> On Fri, 3 Jan 2003, Jim Hauxwell wrote:
>
> > Hi,
> >
> > I've been doing some tests with xvid_encraw / xvid_decraw.
> Looks like all
> > the bframes have corruption on them.  Before I start digging,
> is there any
> > know problems with bframes?  I have attached the 100 frames I have
> > encoded/decoding.
>
> You mean distorsions at the snake's head?
> I guess this is because B-frames have quant 31 and the material is
> interlaced!!!
>
> What were your input parameters?
> Did you notice that you have to modify xvid_encraw.c a little, because
> it does not set bquant_offset (old version of API). Sorry for that, I was
> busy for the last weeks and didn't follow the changes in API, and I don't
> use xvid_encraw myself.
>
> Maybe set this value to 0, next to line 281
>
>         xparam.bquant_ratio = ARG_BQUANTRATIO;
>         xparam.bquant_offset=0;
>
> and retry.
>
> gruel
>
>
>
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