virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-15 14:13:16 +02:00
Code Issues Releases Activity

ff_convert_matrix: fix integer overflow

Browse Source 
Fixes CID608053
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2012-10-18 21:51:04 +02:00
parent 5537c92f84
commit c753b56b4d
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/mpegvideo_enc.c
View File

@@ -103,7 +103,7 @@ void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64],
* 3444240 >= (1 << 36) / (x) >= 275 */ * 3444240 >= (1 << 36) / (x) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) / qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
(ff_aanscales[i] * qscale * quant_matrix[j])); (ff_aanscales[i] * (int64_t)qscale * quant_matrix[j]));
} }
} else { } else {
for (i = 0; i < 64; i++) { for (i = 0; i < 64; i++) {