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avcodec/mpeg12dec: Fix undefined shift

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Found-by: Clang -fsanitize=shift
Reported-by: Thierry Foucu <tfoucu@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-11 04:24:57 +01:00
parent 2e5605f6fa
commit 1932f7e2ee
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mpeg12dec.c
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@ -957,7 +957,7 @@ static int mpeg_decode_mb(MpegEncContext *s, int16_t block[12][64])
av_dlog(s->avctx, "fmx=%d\n", val);
val = mpeg_decode_motion(s, s->mpeg_f_code[i][1],
s->last_mv[i][j][1] >> 1);
s->last_mv[i][j][1] = val << 1;
s->last_mv[i][j][1] = 2 * val;
s->mv[i][j][1] = val;
av_dlog(s->avctx, "fmy=%d\n", val);
}