[FFmpeg-cvslog] avcodec/mpegvideo: make mc_mb_var_sum_temp / mb_var_sum_temp 64bit

[Michael Niedermayer]

ffmpeg | branch: release/2.2 | Michael Niedermayer <michaelni at gmx.at> | Fri Mar 21 18:12:58 2014 +0100| [25b462cab9493e7a50a5fe0602895a3a9554f5a8] | committer: Michael Niedermayer

avcodec/mpegvideo: make mc_mb_var_sum_temp / mb_var_sum_temp 64bit

This avoids a hypothetical integer overflow with very high resolution video

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit c3272674c943474ec6bfcd75e0d9b4b4ca95ff32)

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=25b462cab9493e7a50a5fe0602895a3a9554f5a8
---

 libavcodec/mpegvideo.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 8f7de9e..14a4439 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -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];