[FFmpeg-devel] [PATCH 0/3] 3GPP TS 26.245 Timed Text Encoder. (v2)
ubitux at gmail.com
Sun Jul 29 12:35:57 CEST 2012
On Sun, Jul 29, 2012 at 11:53:37AM +0200, Clément Bœsch wrote:
> On Thu, Jul 26, 2012 at 08:37:50PM -0700, Philip Langdale wrote:
> > This patch series introduces support for encoding subtitles as 3GPP
> > timed text into mp4/mov containers. As with the decoder, there's no
> > styling support currently.
> > Note that this feature requires a change to the actual muxer to
> > handle the insertion of empty packets to signify the end of a subtitle
> > duration.
> > Also note that one of the most common use-cases (remuxing from mkv to
> > mp4) will not work yet, as the subtitle duration is put in the
> > convergence_duration by the mkv demuxer. We still need to resolve this
> > matter and decide whether it is appropriate to use convergence_duration
> > at all, and if so, how to cleanly reconcile the use of both fields.
> From what I can tell, at the moment the convergence_duration is actually
> never used (since we dropped the usage from mkv).
Forget this, I failed at reading again.
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