---
libavfilter/signature_lookup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/signature_lookup.c b/libavfilter/signature_lookup.c
index a0ca818a9b..b39a3e225b 100644
--- a/libavfilter/signature_lookup.c
+++ b/libavfilter/signature_lookup.c
@@ -128,7 +128,7 @@ static int get_jaccarddist(SignatureContext *sc,
CoarseSignature *first, CoarseS
int jaccarddist, i, composdist = 0, cwthcount = 0;
for (i = 0; i < 5; i++) {
if ((jaccarddist = intersection_word(first->data[i], second->data[i]))
> 0) {
- jaccarddist /= union_word(first->data[i], second->data[i]);
+ jaccarddist /= FFMAX(union_word(first->data[i], second->data[i]),
1);
}
if (jaccarddist >= sc->thworddist) {
if (++cwthcount > 2) {
--
2.43.2
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