[FFmpeg-devel] Dirac patch

Anuradha Suraparaju anuradha
Mon Aug 25 03:27:30 CEST 2008

On Sun, 2008-08-24 at 07:44 +0530, selva wrote:
> hi ,
> > You can download the latest source for Dirac and Schroedinger from the
> > git repositories at diracvideo.org/git.
> >
> >
> I downloaded the latest version of the  dirac and  schroedinger  from git
> repos. However i am not able to build it since I am not able to find
> ./configure file . Does the build process involve a different file ?

To generate the configure file from configure.ac, use the following

1. Schroedinger

  ./autogen.sh - This command will create the configure script and run
it with some default arguments. You can re-run the configure script with
your preferred arguments later if you want.

2. Dirac
   ./bootstrap - creates the configure

You will need to have GNU autotools installed on your system.

> I have another query  . I was going through the documents for dirac for
> ogg,  but both are different   "
> http://www.diracvideo.org/wiki/index.php/DiracInOgg ,
> http://wiki.xiph.org/index.php/OggDirac  "
> There is another document by BBC dirac-mapping-ogg.pdf, the link was obtain
> from
> http://wiki.xiph.org/index.php/OggDirac , whcich has different packing order
> . Can tell me which is the document that has to be refered .

Information on diracvideo.org is current and is used by Schro and Dirac
developers. So I suggest you use the document available there.

BTW, if you have any further questions related to Dirac and/or
Schroedinger implementations I suggest that you post them to the Dirac
developer forum ( http://sourceforge.net/forum/?group_id=102564 )  or
Schro mailing list
That way other Dirac/Schro developers will be able to answer your
queries more quickly. The Dirac/Schro IRC channel #dirac is also very
active depending on the time of the day where the  developers live. 

GStreamer Plugins for wrapping Dirac in Ogg  are available in the gst
sub-directory of the Schroedinger source. It might be a good idea to see
how they've handled it there. 

It will be great to have Dirac in Ogg support in FFmpeg.   
> regards
> selva


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