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authorMichael Niedermayer <michaelni@gmx.at>2013-08-30 23:14:32 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-08-30 23:22:18 +0200
commit86736f59d6a527d8bc807d09b93f971c0fe0bb07 (patch)
tree5715e2c3779a9e0d79f9f26d08d1cf304dab6f5e
parent0b46d6f3efa7c647a42d3e77d09c274f611b752b (diff)
downloadffmpeg-86736f59d6a527d8bc807d09b93f971c0fe0bb07.tar.gz
avcodec/pngdsp: fix (un)signed type in end comparission
Fixes out of array accesses Fixes Ticket2919 Found_by: ami_stuff Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavcodec/pngdsp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pngdsp.c b/libavcodec/pngdsp.c
index 0d247759cc..5ab1c351b2 100644
--- a/libavcodec/pngdsp.c
+++ b/libavcodec/pngdsp.c
@@ -31,7 +31,7 @@
static void add_bytes_l2_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
{
long i;
- for (i = 0; i <= w - sizeof(long); i += sizeof(long)) {
+ for (i = 0; i <= w - (int)sizeof(long); i += sizeof(long)) {
long a = *(long *)(src1 + i);
long b = *(long *)(src2 + i);
*(long *)(dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80);