--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/private/super_tone_tx.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,52 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * private/super_tone_tx.h - Flexible telephony supervisory 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: super_tone_tx.h,v 1.1 2008/11/30 10:22:19 steveu Exp $
+ */
+
+#if !defined(_SPANDSP_PRIVATE_SUPER_TONE_TX_H_)
+#define _SPANDSP_PRIVATE_SUPER_TONE_TX_H_
+
+struct super_tone_tx_step_s
+{
+    tone_gen_tone_descriptor_t tone[4];
+    int tone_on;
+    int length;
+    int cycles;
+    super_tone_tx_step_t *next;
+    super_tone_tx_step_t *nest;
+};
+
+struct super_tone_tx_state_s
+{
+    tone_gen_tone_descriptor_t tone[4];
+    uint32_t phase[4];
+    int current_position;
+    int level;
+    super_tone_tx_step_t *levels[4];
+    int cycles[4];
+};
+
+#endif
+/*- End of file ------------------------------------------------------------*/