From: sgunderson@bigfoot.com <>
Date: Thu, 28 Dec 2006 19:01:57 +0000 (+0100)
Subject: Minor tweaks to filtering and such.
X-Git-Url: https://git.sesse.net/?p=audiosync;a=commitdiff_plain;h=7f8b1c45468af6c5d86a77ff021faa7e8621bc7e

Minor tweaks to filtering and such.
---

diff --git a/estimate-skew.cpp b/estimate-skew.cpp
index f129c49..2e6aff2 100644
--- a/estimate-skew.cpp
+++ b/estimate-skew.cpp
@@ -100,8 +100,15 @@ public:
 
 double filter(double x)
 {
-	static double l = 1.0;
-	l = 0.01 * x + 0.99 * l;
+	static double l;
+	static bool init = false;
+
+	if (init) {
+		l = 0.05 * x + 0.95 * l;
+	} else {
+		init = true;
+		l = x;
+	}
 	return l;
 }
 
@@ -191,7 +198,7 @@ int main(int argc, char **argv)
 		}
 
 		double ns = filter(speed * double(num_inp) / double(num_ref));
-		printf("%u vs. %u -- ratio %f, speed %f, filtered speed %f\n", num_inp, num_ref,
+		printf("%u vs. %u -- ratio %.3f, speed %.3f, filtered speed %.3f\n", num_inp, num_ref,
 			double(num_inp) / double(num_ref), speed * double(num_inp) / double(num_ref), ns);
 		speed = ns;
 		intp.update_speed(ns);