eessppeelllloo/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-12-11 17:30:00 +01:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/tests/dct: Use 64bit in intermediate for error computation

Browse Source 
Fixes: CID1500284 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 161d0aa2a8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-05-17 00:46:24 +02:00
parent 9803a178bd
commit 6cc4e8e759
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/tests/dct.c
View File

@@ -222,8 +222,8 @@ static int dct_error(const struct algo *dct, int test, int is_idct, int speed, c
v = abs(err);
if (v > err_inf)
err_inf = v;
err2_matrix[i] += v * v;
err2 += v * v;
err2_matrix[i] += v * (int64_t)v;
err2 += v * (int64_t)v;
sysErr[i] += block[i] - block1[i];
blockSumErr += v;
if (abs(block[i]) > maxout)