With ROUNDED_DIV operation, if the first parameter is 0, it will
overflow and return a very large number, delogo will fail.
So, if it's zero, just set it to 1, it will not affect the result so
much.
Signed-off-by: wuxiaoyong <bonde...@gmail.com>
---
libavfilter/vf_delogo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/vf_delogo.c b/libavfilter/vf_delogo.c
index 065d093..73ad6b9 100644
--- a/libavfilter/vf_delogo.c
+++ b/libavfilter/vf_delogo.c
@@ -126,7 +126,7 @@ static void apply_delogo(uint8_t *dst, int dst_linesize,
botleft[x-logo_x1-1] +
botleft[x-logo_x1+1]) * weightb;
weight = (weightl + weightr + weightt + weightb) * 3U;
- interp = ROUNDED_DIV(interp, weight);
+ interp = ROUNDED_DIV(interp <= 0 ? 1 : interp, weight);
if (y >= logo_y+band && y < logo_y+logo_h-band &&
x >= logo_x+band && x < logo_x+logo_w-band) {
--
2.7.4
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