[FFmpeg-devel] [Preview] MPEG-4 Subtitle support
philipl at overt.org
Wed Jun 6 18:28:35 CEST 2012
I've been meaning to push my WIP to github for a while, and Clément
asked if I could, so here it is:
Note a couple of things:
1) The hack to insert 'stop' packets for subtitles is very much a hack.
I know how to do it properly, as described in the commit description - I
just need to actually do it.
2) Obviously, the encoder and decoder are heavily based on the existing
SRT encoder and decoder. I will be stripping these down and removing
all the html styling bits when I can.
3) I don't intend to add support for proper timed text styling in the
initial pass. I haven't found a player that reads them, so it's
impossible to test, and to actually implement style encoding without
going insane, I'd need to make avio usable from avcodec - meaning
moving it to avutil and going through all the ABI breakage hassle that
I've tested subtitle playback in mplayer and on an ipad so far.
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