[vlc-devel] End-display time of dvb-subtitle and subtitle in teletext

Derk-Jan Hartman d.j.hartman at gmail.com
Mon Nov 1 16:26:36 CET 2010

On 1 nov 2010, at 14:59, andy wang wrote:

> Hi All,
> I have one question about dvb subtitle in vlc. I know the 'PTS' field is the
> start time to show the subtitle, but i don't know when to end-display the
> subtitle(when disappear it). I have read the specification but i cann't find
> anything about the answer.  It's from any field in the PES, or just a
> constant, e.g 10ms?  Same question with subtitle in teletext.

For these systems, there are "draw events" and "clear events" that change or completely remove anything that is currently in the subtitle layer. Subs of this type usually do not have "durations". 


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