diff options
author | Paul B Mahol <onemda@gmail.com> | 2019-10-22 11:38:16 +0300 |
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committer | Paul B Mahol <onemda@gmail.com> | 2019-10-22 11:38:16 +0300 |
commit | 5561a1de90cd3f80ab9ec543f28b6e96a9d0a86c (patch) | |
tree | 22af365d9f903a7638cd6e269b10c788abc494d9 /libavfilter | |
parent | 0b8956b25c2ca3c4f3f2b3b8d36ed6ab177cdae7 (diff) |
avfilter/vf_premultiply: fix signed integer overflow
Fixes #8324
Diffstat (limited to 'libavfilter')
-rw-r--r-- | libavfilter/vf_premultiply.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/vf_premultiply.c b/libavfilter/vf_premultiply.c index 5338af742c..60830e7e84 100644 --- a/libavfilter/vf_premultiply.c +++ b/libavfilter/vf_premultiply.c @@ -186,7 +186,7 @@ static void premultiply16yuv(const uint8_t *mmsrc, const uint8_t *aasrc, for (y = 0; y < h; y++) { for (x = 0; x < w; x++) { - dst[x] = ((((msrc[x] - half) * (((asrc[x] >> 1) & 1) + asrc[x]))) >> shift) + half; + dst[x] = ((((msrc[x] - half) * (int64_t)(((asrc[x] >> 1) & 1) + asrc[x]))) >> shift) + half; } dst += dlinesize / 2; @@ -209,7 +209,7 @@ static void premultiply16offset(const uint8_t *mmsrc, const uint8_t *aasrc, for (y = 0; y < h; y++) { for (x = 0; x < w; x++) { - dst[x] = ((((msrc[x] - offset) * (((asrc[x] >> 1) & 1) + asrc[x])) + half) >> shift) + offset; + dst[x] = ((((msrc[x] - offset) * (int64_t)(((asrc[x] >> 1) & 1) + asrc[x])) + half) >> shift) + offset; } dst += dlinesize / 2; |