[FFmpeg-devel] DVB Subtitles

Kieran Kunhya kierank at obe.tv
Wed Dec 4 03:34:50 CET 2013

> It depends, is there something in the file that indicates what size the subtitles were defined for?

There should be a Display Definition Segment that deals with this
issue for HD subtitling. Some broadcasters don't use this and have the
STB use an upscaled overlay to do this. You'll have to emulate this

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