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low resolution decoding fix

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Originally committed as revision 3510 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-09-26 09:00:37 +00:00
parent 9ca358b951
commit 6aeb03d887
1 changed files with 2 additions and 2 deletions
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4
libavcodec/mjpeg.c
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@ -1338,8 +1338,8 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s){
}
// dprintf("mb: %d %d processed\n", mb_y, mb_x);
ptr = s->picture.data[c] +
(s->linesize[c] * (v * mb_y + y) * 8) +
(h * mb_x + x) * 8;
(((s->linesize[c] * (v * mb_y + y) * 8) +
(h * mb_x + x) * 8) >> s->avctx->lowres);
if (s->interlaced && s->bottom_field)
ptr += s->linesize[c] >> 1;
//av_log(NULL, AV_LOG_DEBUG, "%d %d %d %d %d %d %d %d \n", mb_x, mb_y, x, y, c, s->bottom_field, (v * mb_y + y) * 8, (h * mb_x + x) * 8);