From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/3] avfilter/signature_lookup: Fix 2 differences to the refernce SW
Date: Mon, 22 Apr 2024 01:06:59 +0200
Message-ID: <20240421230701.4178782-1-michael@niedermayer.cc> (raw)
Fixes: CID1403227 Division or modulo by float zero
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
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 ab7320d47f4..a3086b38cca 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) ||
--
2.25.1
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next reply other threads:[~2024-04-21 23:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-21 23:06 Michael Niedermayer [this message]
2024-04-21 23:07 ` [FFmpeg-devel] [PATCH 2/3] avfilter/signature_lookup: Initialize bestmatch Michael Niedermayer
2024-04-21 23:10 ` Andreas Rheinhardt
2024-04-22 2:09 ` Michael Niedermayer
2024-04-21 23:07 ` [FFmpeg-devel] [PATCH 3/3] avfilter/signature_lookup: Dont copy uninitialized stuff around Michael Niedermayer
2024-04-24 0:49 ` Michael Niedermayer
2024-04-24 0:49 ` [FFmpeg-devel] [PATCH 1/3] avfilter/signature_lookup: Fix 2 differences to the refernce SW Michael Niedermayer
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