Add in new tone detection/generation library "libteletone"

Thanks to coppice, trixter, mikej and bkw for research, hints and or code examples.



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@629 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/libteletone/src/libteletone.h

@@ -0,0 +1,62 @@
+/* 
+ * libteletone
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libteletone
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct@yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Anthony Minessale II <anthmct@yahoo.com>
+ *
+ *
+ * libteletone.h -- Tone Generator/Detector
+ *
+ */
+#ifndef LIBTELETONE_H
+#define LIBTELETONE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define	TELETONE_MAX_DTMF_DIGITS 128
+#define TELETONE_MAX_TONES 6
+#define TELETONE_TONE_RANGE 127
+
+/*! \file libteletone.h
+    \brief Top level include file
+
+	This file should be included by applications using the library
+*/
+
+/*! \brief An abstraction to store a tone mapping */
+typedef struct {
+	/*! An array of tone frequencies */
+	double freqs[TELETONE_MAX_TONES];
+} teletone_tone_map_t;
+
+
+#include <libteletone_generate.h>
+#include <libteletone_detect.h>
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif