Hi,
On Wed, Mar 11, 2015 at 9:11 PM, Michael Niedermayer <michae...@gmx.at>
wrote:
> Found-by: Clang -fsanitize=shift
> Reported-by: Thierry Foucu <tfo...@google.com>
> Signed-off-by: Michael Niedermayer <michae...@gmx.at>
> ---
> libavcodec/vp9.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/libavcodec/vp9.c b/libavcodec/vp9.c
> index 265dc7e..0405c05 100644
> --- a/libavcodec/vp9.c
> +++ b/libavcodec/vp9.c
> @@ -689,10 +689,10 @@ static int decode_frame_header(AVCodecContext *ctx,
> for (j = 1; j < 4; j++) {
> s->segmentation.feat[i].lflvl[j][0] =
> 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] =
> av_clip_uintp2(lflvl + ((s->lf_delta.ref[j] +
> - s->lf_delta.mode[1]) << sh), 6);
> + s->lf_delta.mode[1]) * (1 <<
> sh)), 6);
Same question: why is this undefined?
Ronald
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