[Ffmpeg-devel] Ratecontrol problem

[Marcel Tscherkasow]

Hello,

while encoding many small mpg-streams I have had error with many buffer 
underflows too. Testing with packetsize elimnates many but not all.

Best regards 
Marcel

Am Donnerstag, 12. Oktober 2006 15:23 schrieb Thomas Parmegiani:
> I use the latest svn.
> Even if I change bitrate tolerance to a higher value it does not work...
> The only way I found to reach the desired bitrate is to change the frame
> size to a lower resolution but I need to keep the original size.
>
> Best Regards,
>
> Thomas.P
>
>
> -----Message d'origine-----
> De : ffmpeg-devel-bounces at mplayerhq.hu
> [mailto:ffmpeg-devel-bounces at mplayerhq.hu]De la part de Michael
> Niedermayer
> Envoye : jeudi 12 octobre 2006 15:14
> A : FFmpeg development discussions and patches
> Objet : Re: [Ffmpeg-devel] Ratecontrol problem
>
>
> Hi
>
> On Thu, Oct 12, 2006 at 02:51:36PM +0200, Thomas Parmegiani wrote:
> > Hi all !
> >
> > I have some problems to reencode a MPEG2 file (IBP, 1920x1080, 30 Mbs) to
>
> a
>
> > 15 Mbs I only
> >
> > file (I only is important as I need it).
> >
> > At the moment my main problem is not the quality but the target bitrate.
> > I get too many rc buffer underflow warnings ! Can anyone help me about my
> > problem ?
>
> first use latest svn
>
> > Here is the command line I use : ./ffmpeg -i /e/test.ts -b
>
> 15000000 -minrate
>
> > 15000000 -maxrate 15000000 -bt 1 -bufsize 1500000 -intra /e/test2.ts
>
> -bt 1 is significantly too small
>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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