initial checkin

Check in contents of upstream 1.4.2 tarball, exclude generated files.

1 files changed, 48 insertions, 0 deletions

diff --git a/src/audio/freq_gen.h b/src/audio/freq_gen.h
new file mode 100644
index 0000000..5659739
--- /dev/null
+++ b/src/audio/freq_gen.h
@@ -0,0 +1,48 @@
+/*
+    Copyright (C) 2005-2009  Michel de Boer <michel@twinklephone.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+// Frequency generator
+//
+// This file contains definitions of the frequency generator.
+// The frequency generator generates tones build from a list of
+// frequencies.
+
+#ifndef _FREQ_GEN_H
+#define _FREQ_GEN_H
+
+#include <vector>
+#include <cc++/config.h>
+
+using namespace std;
+
+class t_freq_gen {
+private:
+	vector<uint16>	_frequencies;
+	int16		_amplitude;
+	
+public:
+	t_freq_gen(vector<uint16> frequencies, int8 db_level);
+	t_freq_gen(uint8 dtmf, int8 db_level);
+	
+	// Get sound sample on a particular timestamp in us.
+	int16 get_sample(uint32 ts_usec) const;
+	void get_samples(int16 *sample_buf, uint16 buf_len, 
+			uint32 ts_start, double interval) const;
+};
+
+#endif