Re: [matroska-devel] Re: a subtitle format

Christian: I think choosing png as the "communication" media type between
the source->muxer and demuxer->renderer is not a very good idea, if you want
to make more source (for different inputs not just idx/sub) or renderer (not
just dvobsub) they all needed to support png. It would be better to use
uncompressed memory bitmaps (24bpp truecolor or 1/2/4/8bpp palettized) and
let the muxer/demuxer do the png conversion internally.

http://usf.corecodec.org