--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/private/time_scale.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,52 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * private/time_scale.h - Time scaling for linear speech data
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2004 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: time_scale.h,v 1.1 2008/11/15 14:27:29 steveu Exp $
+ */
+
+#if !defined(_SPANDSP_PRIVATE_TIME_SCALE_H_)
+#define _SPANDSP_PRIVATE_TIME_SCALE_H_
+
+#define TIME_SCALE_MAX_SAMPLE_RATE  48000
+#define TIME_SCALE_MIN_PITCH        60
+#define TIME_SCALE_MAX_PITCH        250
+#define TIME_SCALE_BUF_LEN          (2*TIME_SCALE_MAX_SAMPLE_RATE/TIME_SCALE_MIN_PITCH)
+
+/*! Audio time scaling descriptor. */
+struct time_scale_state_s
+{
+    int sample_rate;
+    int min_pitch;
+    int max_pitch;
+    int buf_len;
+    float playout_rate;
+    double rcomp;
+    double rate_nudge;
+    int fill;
+    int lcp;
+    int16_t buf[TIME_SCALE_BUF_LEN];
+};
+
+#endif
+/*- End of file ------------------------------------------------------------*/