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| author | Mans Rullgard <mans@mansr.com> | 2011-10-09 20:32:58 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-11-04 01:02:08 +0100 |
| commit | c41950099da00e1abd084a09de96793b3d863a97 (patch) | |
| tree | 51ec9630d7f509a6874b5237563413b51ae7913d /libavcodec | |
| parent | f65e396aa13925f125c320895d4b9eda241fbba6 (diff) | |
| download | ffmpeg-c41950099da00e1abd084a09de96793b3d863a97.tar.gz | |
mpegvideo_enc: fix a signed overflow
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 05795f35be4b479bfa8d60ed3eb13e0f89e439c0)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mpegvideo_enc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index 3c92aa93f4..b9e141d4cd 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -2007,7 +2007,7 @@ static int mb_var_thread(AVCodecContext *c, void *arg){ int varc; int sum = s->dsp.pix_sum(pix, s->linesize); - varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8; + varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)sum*sum)>>8) + 500 + 128)>>8; s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc; s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8; |