[FFmpeg-devel] [PATCH/RFC] subtitles: introduce ASS codec id and use it.

Clément Bœsch ubitux at gmail.com
Wed Feb 13 17:03:55 CET 2013


On Wed, Feb 13, 2013 at 11:52:36AM +0100, Nicolas George wrote:
> Le quartidi 14 nivôse, an CCXXI, Clement Boesch a écrit :
> > In matroska, this markup is not stored as such: it has no "Dialogue:"
> > prefix, it contains a ReadOrder field, the timing information is not in
> > the payload, and it doesn't contain the trailing CRLF. See [1] for more
> > info. We'll refer to this layout as "ASS".
> 
> There is another problem with that approach: ASS-in-Matroska only supports
> Dialogue lines, while the ASS spec also defines "Comment", "Picture",
> "Sound" and "Movie". mkvmerge ignores all these lines. Ignoring comments
> seems ok, but IMHO the others should be preserved.
> 

"Comment" is actually the most important field; it is mainly used for
templating effects in aegisub. I'll look into this.

-- 
Clément B.
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