CC:[email protected]
---
libavutil/mem.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavutil/mem.c b/libavutil/mem.c
index 3a4433d..bb398fd 100644
--- a/libavutil/mem.c
+++ b/libavutil/mem.c
@@ -252,7 +252,9 @@ static void fill32(uint8_t *dst, int len)
void av_memcpy_backptr(uint8_t *dst, int back, int cnt)
{
const uint8_t *src = &dst[-back];
- if (back == 1) {
+ if (!back)
+ return;
+ else if (back == 1) {
memset(dst, *src, cnt);
} else if (back == 2) {
fill16(dst, cnt);
--
1.7.10.4
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