From dcb194a5f0a622384e2c15dc7e24404b582b2220 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A1s=20Veres-Szentkir=C3=A1lyi?= <vsza@vsza.hu>
Date: Tue, 2 Jul 2013 11:46:01 +0200
Subject: [PATCH] gen_values: precalculate sin() param factor

---
 pysstv/sstv.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pysstv/sstv.py b/pysstv/sstv.py
index cbd7d1b..6c80a63 100644
--- a/pysstv/sstv.py
+++ b/pysstv/sstv.py
@@ -75,13 +75,13 @@ class SSTV(object):
         spms = self.samples_per_sec / 1000
         param = 0
         samples = 0
+        factor = 2 * pi / self.samples_per_sec
         for freq, msec in self.gen_freq_bits():
             offset = param
             samples += spms * msec
             tx = floor(samples)
             for sample in xrange(int(tx)):
-                t = sample / self.samples_per_sec
-                param = t * freq * 2 * pi + offset
+                param = sample * freq * factor + offset
                 yield sin(param)
             samples -= tx