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Make MS RLE decoder produce both bottom-up and top-down pictures

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Originally committed as revision 20111 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2009-10-01 05:42:55 +00:00
parent 535497f193
commit b08de903cd
1 changed files with 4 additions and 2 deletions
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6
libavcodec/msrledec.c
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@ -167,7 +167,8 @@ static int msrle_decode_8_16_24_32(AVCodecContext *avctx, AVPicture *pic, int de
continue;
}
// Copy data
if (output + p2 * (depth >> 3) > output_end) {
if ((pic->linesize[0] > 0 && output + p2 * (depth >> 3) > output_end)
||(pic->linesize[0] < 0 && output + p2 * (depth >> 3) < output_end)) {
src += p2 * (depth >> 3);
continue;
}
@ -211,7 +212,8 @@ static int msrle_decode_8_16_24_32(AVCodecContext *avctx, AVPicture *pic, int de
src += 4;
break;
}
if (output + p1 * (depth >> 3) > output_end)
if ((pic->linesize[0] > 0 && output + p1 * (depth >> 3) > output_end)
||(pic->linesize[0] < 0 && output + p1 * (depth >> 3) < output_end))
continue;
for(i = 0; i < p1; i++) {
switch(depth){