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Fix avfilter_draw_slice() copy code with alpha planes.

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Originally committed as revision 26060 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini
2010-12-19 19:08:30 +00:00
parent 2609ad3e40
commit fee0deb61f
1 changed files with 3 additions and 3 deletions
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6
libavfilter/avfilter.c
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@ -416,9 +416,9 @@ void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
for (i = 0; i < 4; i++) { for (i = 0; i < 4; i++) {
if (link->src_buf->data[i]) { if (link->src_buf->data[i]) {
src[i] = link->src_buf-> data[i] + src[i] = link->src_buf-> data[i] +
(y >> (i==0 ? 0 : vsub)) * link->src_buf-> linesize[i]; (y >> (i==1 || i==2 ? vsub : 0)) * link->src_buf-> linesize[i];
dst[i] = link->cur_buf->data[i] + dst[i] = link->cur_buf->data[i] +
(y >> (i==0 ? 0 : vsub)) * link->cur_buf->linesize[i]; (y >> (i==1 || i==2 ? vsub : 0)) * link->cur_buf->linesize[i];
} else } else
src[i] = dst[i] = NULL; src[i] = dst[i] = NULL;
} }
@ -429,7 +429,7 @@ void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
if (!src[i]) continue; if (!src[i]) continue;
for (j = 0; j < h >> (i==0 ? 0 : vsub); j++) { for (j = 0; j < h >> (i==1 || i==2 ? vsub : 0); j++) {
memcpy(dst[i], src[i], planew); memcpy(dst[i], src[i], planew);
src[i] += link->src_buf->linesize[i]; src[i] += link->src_buf->linesize[i];
dst[i] += link->cur_buf->linesize[i]; dst[i] += link->cur_buf->linesize[i];