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avcodec/mpegvideo: make mc_mb_var_sum_temp / mb_var_sum_temp 64bit

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This avoids a hypothetical integer overflow with very high resolution video

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c3272674c9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2014-03-21 18:12:58 +01:00
parent 7c6a8afa7e
commit 25b462cab9
1 changed files with 2 additions and 2 deletions
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4
libavcodec/mpegvideo.h
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@@ -251,8 +251,8 @@ typedef struct MotionEstContext{
int stride;
int uvstride;
/* temp variables for picture complexity calculation */
int mc_mb_var_sum_temp;
int mb_var_sum_temp;
int64_t mc_mb_var_sum_temp;
int64_t mb_var_sum_temp;
int scene_change_score;
/* cmp, chroma_cmp;*/
op_pixels_func (*hpel_put)[4];