From 25cb66369e7b81bd280f0bdd6d51a0e2e11881e3 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 22 Apr 2024 00:43:19 +0200 Subject: [PATCH] avfilter/signature_lookup: Fix 2 differences to the refernce SW Fixes: CID1403227 Division or modulo by float zero Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer --- libavfilter/signature_lookup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavfilter/signature_lookup.c b/libavfilter/signature_lookup.c index ab7320d47f..a3086b38cc 100644 --- a/libavfilter/signature_lookup.c +++ b/libavfilter/signature_lookup.c @@ -496,10 +496,10 @@ static MatchingInfo evaluate_parameters(AVFilterContext *ctx, SignatureContext * continue; /* matching sequence is too short */ if ((double) goodfcount / (double) fcount < sc->thit) continue; - if ((double) goodfcount*0.5 < FFMAX(gooda, goodb)) + if ((double) goodfcount*0.5 <= FFMAX(gooda, goodb)) continue; - meandist = (double) goodfcount / (double) distsum; + meandist = (double) distsum / (double) goodfcount; if (meandist < minmeandist || status == (STATUS_END_REACHED | STATUS_BEGIN_REACHED) ||