[FFmpeg-devel] [RFC] convergence duration and subtitles

[Reimar Döffinger]

On Sun, Aug 29, 2010 at 11:23:07AM +0200, Aurelien Jacobs wrote:
> On Sun, Aug 29, 2010 at 08:49:35AM +0200, Reimar D?ffinger wrote:
> > Hello,
> > when playing http://samples.mplayerhq.hu/sub/fribidi/fribidi_arabic_hebrew_subs.mkv
> > convergence_duration will be set and valid (and needed to play subs without
> > an ASS renderer) even for packets that do not have PKT_FLAG_KEY set.
> > My question is: is the mkv demuxer setting that flag incorrectly,
> > should we change the documentation as below, or should we change
> > it to something else entirely?
> 
> IIRC, the mkv demuxer just misuse convergence_duration. It shouldn't set
> it at all.
> I have a plan to fix this entirely but I will need some more time.

Could you please do it in a way that also exports the duration value
for ASS subtitles? That is really helpful for rendering a basic
version of the ASS subtitles using the standard plain text renderer.