--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/private/tone_generate.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,68 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * private/tone_generate.h - General telephony tone generation.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2001 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1,
+ * as published by the Free Software Foundation.
+ *
+ * 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: tone_generate.h,v 1.1 2008/11/30 10:17:31 steveu Exp $
+ */
+
+#if !defined(_SPANDSP_PRIVATE_TONE_GENERATE_H_)
+#define _SPANDSP_PRIVATE_TONE_GENERATE_H_
+
+struct tone_gen_tone_descriptor_s
+{
+    int32_t phase_rate;
+#if defined(SPANDSP_USE_FIXED_POINT)
+    int16_t gain;
+#else
+    float gain;
+#endif
+};
+
+/*!
+    Cadenced multi-tone generator descriptor.
+*/
+struct tone_gen_descriptor_s
+{
+    tone_gen_tone_descriptor_t tone[4];
+    int duration[4];
+    int repeat;
+};
+
+/*!
+    Cadenced multi-tone generator state descriptor. This defines the state of
+    a single working instance of a generator.
+*/
+struct tone_gen_state_s
+{
+    tone_gen_tone_descriptor_t tone[4];
+
+    uint32_t phase[4];
+    int duration[4];
+    int repeat;
+
+    int current_section;
+    int current_position;
+};
+
+#endif
+/*- End of file ------------------------------------------------------------*/