[Ffmpeg-devel] [PATCH] Add Dirac support to ffmpeg]

[Andrew Kennedy]

Hi,

I've amended the patch in line with your recommendations. As part of the 
changes, encoding should now only work with the -2 strict option.

Thanks
Andrew


At 23:15 25/08/2005, you wrote:
>Hi
>
>On Thu, Aug 25, 2005 at 05:25:41PM -0400, Rich Felker wrote:
> > On Thu, Aug 25, 2005 at 05:00:31PM +0100, Andrew Kennedy wrote:
> > >
> > > **Amended Dirac patch for ffmpeg
> > > **Tested with ffmpeg cvs (as of August 25, 2005 10:00am)
> > > **Author(s): Andrew Kennedy (dirac_dev at users.sourceforge.net) (main)
> > >              Anuradha Suraparaju (asuraparaju at users.sourceforge.net)
> > >              (minor mods)
> > >
> > > Dirac is an open-source video codec currently under development. Both
> > > the encoder and decoder have been integrated with ffmpeg. This patch is
> > > only a basic integration such that only the salient paremeters are
> > > currently passed from ffmpeg to Dirac. As Dirac develops, especially
> > > with the integration of  a formalised bit-stream syntax,  then more
> > > complex screnarios can be dealt with. Encoded Dirac files, with the
> > > right patch, can be played back using MPlayer.
> >
> > If bitstream is not finalized and may change, strict=-2 should be
> > required to encode..
>
>yes, adding something like: (from snow.c)
>     if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
>         av_log(avctx, AV_LOG_ERROR, "this codec is under development, 
> files encoded with it may not be decodable with future versions!!!\n"
>                "use vstrict=-2 / -strict -2 to use it anyway\n");
>         return -1;
>     }
>
>should fix it
>
>[...]
>--
>Michael
>
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