[FFmpeg-devel] DVB Subtitles

JULIAN GARDNER joolzg at btinternet.com
Wed Dec 4 11:38:16 CET 2013

> From: Kieran Kunhya <kierank at obe.tv>
>To: FFmpeg development discussions and patches <ffmpeg-devel at ffmpeg.org> 
>Sent: Wednesday, 4 December 2013, 3:34
>Subject: Re: [FFmpeg-devel] DVB Subtitles
>> 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
>ffmpeg-devel mailing list
>ffmpeg-devel at ffmpeg.org

Got a dump of the stream and no DDS!!

So looks like I am going to have to work a way of fixing the size correctly to the DVB Subs Width/Height and not set the canvas to the incoming video W/H. This way I can then reposition it or resize it, which might be the better solution.

ps. still need to post the DVB_Teletext modifications.

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