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avcodec/vp9: Fix undefined shifts in decode_frame_header() 

Found-by: Clang -fsanitize=shift
Reported-by: Thierry Foucu <tfoucu@google.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-12 02:01:33 +01:00
parent b7cb8b3d43
commit 27191b82de
1 changed files with 2 additions and 2 deletions
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4
libavcodec/vp9.c
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@ -689,10 +689,10 @@ static int decode_frame_header(AVCodecContext *ctx,
for (j = 1; j < 4; j++) { for (j = 1; j < 4; j++) {
s->segmentation.feat[i].lflvl[j][0] = s->segmentation.feat[i].lflvl[j][0] =
av_clip_uintp2(lflvl + ((s->lf_delta.ref[j] + av_clip_uintp2(lflvl + ((s->lf_delta.ref[j] +
s->lf_delta.mode[0]) << sh), 6); s->lf_delta.mode[0]) * (1 << sh)), 6);
s->segmentation.feat[i].lflvl[j][1] = s->segmentation.feat[i].lflvl[j][1] =
av_clip_uintp2(lflvl + ((s->lf_delta.ref[j] + av_clip_uintp2(lflvl + ((s->lf_delta.ref[j] +
s->lf_delta.mode[1]) << sh), 6); s->lf_delta.mode[1]) * (1 << sh)), 6);
} }
} }