[FFmpeg-devel] [PATCH 0/2] RFC: TEXT subtitle decoder

Wolfram Gloger wmglo at dent.med.uni-muenchen.de
Fri May 25 22:04:51 CEST 2012

JULIAN GARDNER <joolzg at btinternet.com> writes:

> But what about DVB Subtitles which are bitmap based, anybody looking,
> apart from me, into this?

Yes, I transcode them with -scodec dvdsub and that works well.  Or did
you mean converting from the bitmaps into text using OCR?

> Also as i posted before i wanted to do a minimal Teletext Decoder, just for subtitles, and this would work with the text based subtitles.

I have been using a teletext decoder with ffmpeg, based on libzvbi, for
many years.  Just recently I added an option to generate plain UTF-8
text subtitles rather than bitmaps.  My patch from earlier today was a
necessary step to mux this into .mkv and test on my TV.  It works :)

Oh well, I'm afraid it might take years to get this merged. :-/


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