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-rw-r--r--libavfilter/avf_showcwt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/avf_showcwt.c b/libavfilter/avf_showcwt.c
index 51a45ef636..ee0d697e1e 100644
--- a/libavfilter/avf_showcwt.c
+++ b/libavfilter/avf_showcwt.c
@@ -662,7 +662,7 @@ static void compute_kernel(AVFilterContext *ctx)
for (int n = 0; n < size; n++) {
if (kernel[size - n - 1].re != 0.f) {
- kernel_stop[y] = size - n;
+ kernel_stop[y] = size - n - 1;
break;
}
}