--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.3/spandsp-0.0.3/tests/tone_generate_tests.c	Fri Jun 25 16:00:21 2010 +0200
@@ -0,0 +1,191 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * tone_generate_tests.c
+ *
+ * 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 General Public License version 2, 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: tone_generate_tests.c,v 1.13 2006/11/23 15:32:23 steveu Exp $
+ */
+
+/*! \page tone_generate_tests_page Tone generation tests
+\section tone_generate_tests_page_sec_1 What does it do?
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include <stdio.h>
+#if defined(HAVE_TGMATH_H)
+#include <tgmath.h>
+#endif
+#if defined(HAVE_MATH_H)
+#include <math.h>
+#endif
+#include <time.h>
+#include <fcntl.h>
+#include <audiofile.h>
+#include <tiffio.h>
+
+#include "spandsp.h"
+
+#define OUTPUT_FILE_NAME    "tone_generate.wav"
+
+int main(int argc, char *argv[])
+{
+    tone_gen_descriptor_t tone_desc;
+    tone_gen_state_t tone_state;
+    int i;
+    int16_t amp[16384];
+    int len;
+    AFfilehandle outhandle;
+    AFfilesetup filesetup;
+    int outframes;
+
+    filesetup = afNewFileSetup ();
+    if (filesetup == AF_NULL_FILESETUP)
+    {
+    	fprintf(stderr, "    Failed to create file setup\n");
+        exit(2);
+    }
+    afInitSampleFormat(filesetup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
+    afInitRate(filesetup, AF_DEFAULT_TRACK, 8000.0);
+    //afInitCompression(filesetup, AF_DEFAULT_TRACK, AF_COMPRESSION_G711_ALAW);
+    afInitFileFormat(filesetup, AF_FILE_WAVE);
+    afInitChannels(filesetup, AF_DEFAULT_TRACK, 1);
+
+    outhandle = afOpenFile(OUTPUT_FILE_NAME, "w", filesetup);
+    if (outhandle == AF_NULL_FILEHANDLE)
+    {
+        fprintf(stderr, "    Cannot open wave file '%s'\n", OUTPUT_FILE_NAME);
+        exit(2);
+    }
+    
+    make_tone_gen_descriptor(&tone_desc,
+                             440,
+                             -10,
+                             620,
+                             -15,
+                             100,
+                             200,
+                             300,
+                             400,
+                             FALSE);
+    tone_gen_init(&tone_state, &tone_desc);
+
+    for (i = 0;  i < 1000;  i++)
+    {
+        len = tone_gen(&tone_state, amp, 160);
+        printf("Generated %d samples\n", len);
+        if (len <= 0)
+            break;
+        outframes = afWriteFrames(outhandle,
+                                  AF_DEFAULT_TRACK,
+                                  amp,
+                                  len);
+    }
+    
+    make_tone_gen_descriptor(&tone_desc,
+                             350,
+                             -10,
+                             440,
+                             -15,
+                             100,
+                             200,
+                             300,
+                             400,
+                             TRUE);
+    tone_gen_init(&tone_state, &tone_desc);
+
+    for (i = 0;  i < 1000;  i++)
+    {
+        len = tone_gen(&tone_state, amp, 160);
+        printf("Generated %d samples\n", len);
+        if (len <= 0)
+            break;
+        outframes = afWriteFrames(outhandle,
+                                  AF_DEFAULT_TRACK,
+                                  amp,
+                                  len);
+    }
+    
+    make_tone_gen_descriptor(&tone_desc,
+                             400,
+                             -10,
+                             450,
+                             -10,
+                             100,
+                             200,
+                             300,
+                             400,
+                             TRUE);
+    tone_gen_init(&tone_state, &tone_desc);
+
+    for (i = 0;  i < 1000;  i++)
+    {
+        len = tone_gen(&tone_state, amp, 160);
+        printf("Generated %d samples\n", len);
+        if (len <= 0)
+            break;
+        outframes = afWriteFrames(outhandle,
+                                  AF_DEFAULT_TRACK,
+                                  amp,
+                                  len);
+    }
+    
+    make_tone_gen_descriptor(&tone_desc,
+                             425,
+                             -10,
+                             -50,
+                             100,
+                             100,
+                             200,
+                             300,
+                             400,
+                             TRUE);
+    tone_gen_init(&tone_state, &tone_desc);
+
+    for (i = 0;  i < 1000;  i++)
+    {
+        len = tone_gen(&tone_state, amp, 160);
+        printf("Generated %d samples\n", len);
+        if (len <= 0)
+            break;
+        outframes = afWriteFrames(outhandle,
+                                  AF_DEFAULT_TRACK,
+                                  amp,
+                                  len);
+    }
+    
+    if (afCloseFile(outhandle) != 0)
+    {
+        fprintf(stderr, "    Cannot close wave file '%s'\n", OUTPUT_FILE_NAME);
+        exit (2);
+    }
+    afFreeFileSetup(filesetup);
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/