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dvbsubdec: set width/height from display def if not set.

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This fixes playback of DVB subtitles in
http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket1065/Test1.wtv
in MPlayer.
FFplay is not affected since it assumes that the subtitles
are scaled to match the video - but this usually isn't the
case after rescaling the video and stream-copying subtitles.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger 2012-08-27 17:57:11 +02:00
parent dddd006cab
commit fe79fc2ea5
1 changed files with 4 additions and 0 deletions
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4
libavcodec/dvbsubdec.c
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@ -1343,6 +1343,10 @@ static void dvbsub_parse_display_definition_segment(AVCodecContext *avctx,
display_def->y = 0;
display_def->width = bytestream_get_be16(&buf) + 1;
display_def->height = bytestream_get_be16(&buf) + 1;
if (!avctx->width || !avctx->height) {
avctx->width = display_def->width;
avctx->height = display_def->height;
}
if (buf_size < 13)
return;