[FFmpeg-devel] [PATCH] AVPacket.display_duration

Uoti Urpala uoti.urpala
Tue Sep 9 01:14:47 CEST 2008

On Tue, 2008-09-09 at 00:07 +0100, Ian Caulfield wrote:
> 2008/9/8 Uoti Urpala <uoti.urpala at pp1.inet.fi>
> >
> > You could make a subtitle format which behaves like video and has a new
> > packet at each point where anything changes (such as a subtitle
> > disappearing). But unlike video all the existing subtitle formats are
> > not like that.
> Be careful with those generalizations - that's exactly how DVB subtitles work...

I meant that practically all video formats work like that, but not all
subtitle formats. I know that _some_ subtitle formats do use those
semantics (IIRC ogm subtitles for another example, and Reimar also
mentions mov subtitles in the linked-to URL).

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