[MPlayer-advusers] Dirac demuxing A/V sync loss

[Diego Biurrun]

On Sat, Oct 18, 2008 at 11:58:48PM +0400, Andrew Savchenko wrote:
> 
> On Saturday 18 October 2008 12:10, Diego Biurrun wrote:
> [...]
> > Time to report a bug to FFmpeg/Anuradha then?
> 
> Done. I submitted to ffmpeg's bugzilla:
> https://[scrambled].mplayerhq.hu/[scrambled]/ffmpeg/issue694
> 
> I hope, this is a right way. ffmpeg-users seems to be not intended 
> for bugreporting and I will be definitely blamed on devel list 
> with a bugreport instead of a patch 8-).
> 
> Well, I sincerely tried to fix this myself, but currently I gave 
> up. Dirac's codec doesn't set has_b_frames at all. A quick 
> overview of dirac's specification revealed, that it is a bad idea 
> to always set has_b_frames=1 either: dirac allows to create video 
> without B-frames at all (e.g. Dirac Pro). And Dirac's 
> specification in 136 pages + documentation of the library seems to 
> be too much to fix this issue relatively easily with zero a priori 
> knowledge of Dirac codec.

Let's see if Anuradha can fix it...

Diego