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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 <michael@niedermayer.cc>
(cherry picked from commit 25cb66369e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-04-22 00:43:19 +02:00
parent 1076d31485
commit 339f9e76f3
No known key found for this signature in database
GPG Key ID: B18E8928B3948D64
1 changed files with 2 additions and 2 deletions
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4
libavfilter/signature_lookup.c
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@ -501,10 +501,10 @@ 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 ||