From 67a2b2852c3c75dfbdf49bf6fd352c550ba82dca Mon Sep 17 00:00:00 2001
From: garamond13 <98652255+garamond13@users.noreply.github.com>
Date: Wed, 2 Feb 2022 19:38:21 +0100
Subject: filter kernels: add cosine window

filter kernels: add cosine window
---
 video/out/filter_kernels.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'video/out')

diff --git a/video/out/filter_kernels.c b/video/out/filter_kernels.c
index 4ebc033eec..bf0ceba0ee 100644
--- a/video/out/filter_kernels.c
+++ b/video/out/filter_kernels.c
@@ -187,6 +187,11 @@ static double triangle(params *p, double x)
     return fmax(0.0, 1.0 - fabs(x / p->radius));
 }
 
+static double cosine(params *p, double x)
+{
+    return cos(x);
+}
+
 static double hanning(params *p, double x)
 {
     return 0.5 + 0.5 * cos(M_PI * x);
@@ -339,6 +344,7 @@ const struct filter_window mp_filter_windows[] = {
     {"box",            1,   box},
     {"triangle",       1,   triangle},
     {"bartlett",       1,   triangle},
+    {"cosine",         M_PI_2, cosine},
     {"hanning",        1,   hanning},
     {"tukey",          1,   hanning, .taper = 0.5},
     {"hamming",        1,   hamming},
-- 
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