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Display subtitles within the display area.

Fixes dvd-subtitle-problem.vob. (problem likely is that the video
resolution is smaller than what the subtitles expect)

Originally committed as revision 16411 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-01-03 17:50:00 +00:00
parent c66216ed5d
commit 7cf9c6ae40

View File

@ -441,10 +441,10 @@ static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw,
const uint32_t *pal;
int dstx, dsty, dstw, dsth;
dstx = FFMIN(FFMAX(rect->x, 0), imgw);
dstw = FFMIN(FFMAX(rect->w, 0), imgw - dstx);
dsty = FFMIN(FFMAX(rect->y, 0), imgh);
dsth = FFMIN(FFMAX(rect->h, 0), imgh - dsty);
dstw = av_clip(rect->w, 0, imgw);
dsth = av_clip(rect->h, 0, imgh);
dstx = av_clip(rect->x, 0, imgw - dstw);
dsty = av_clip(rect->y, 0, imgh - dsth);
lum = dst->data[0] + dsty * dst->linesize[0];
cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];