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authorMichael Niedermayer <michaelni@gmx.at>2013-09-06 00:56:44 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-09-06 01:19:37 +0200
commit1deeb9437c9c0e1f9cb708b24a4d0dedaee7bab3 (patch)
treee15a30c9c9f4edff7a9b84eb92cf1bb06947ccdd /libavcodec
parent15071ed4fc55b7cb048de7a5adc1cb41b7f8a8de (diff)
downloadffmpeg-1deeb9437c9c0e1f9cb708b24a4d0dedaee7bab3.tar.gz
avcodec/mjpegdec: Fix normal jpeg with bits < 8
Untested due to lack of testcase Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/mjpegdec.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index a1b7e8a6e9..0d619efe49 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -1121,6 +1121,12 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,
return AVERROR_INVALIDDATA;
}
s->dsp.idct_put(ptr, linesize[c], s->block);
+ if (s->bits & 7) {
+ int block_x, block_y;
+ for (block_y=0; block_y<8; block_y++)
+ for (block_x=0; block_x<8; block_x++)
+ *(ptr + 2*block_x + block_y*linesize[c]) <<= 8 - s->bits;
+ }
}
} else {
int block_idx = s->block_stride[c] * (v * mb_y + y) +