--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.3/spandsp-0.0.3/tests/bell_mf_tx_tests.c	Fri Jun 25 16:00:21 2010 +0200
@@ -0,0 +1,232 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * bell_mf_tx_tests.c - Test the Bell MF generator.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2003 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: bell_mf_tx_tests.c,v 1.4 2006/11/19 14:07:26 steveu Exp $
+ */
+
+/*! \file */
+
+/*! \page bell_mf_tx_tests_page Bell MF generation tests
+\section bell_mf_tx_tests_page_sec_1 What does it do?
+???.
+
+\section bell_mf_tx_tests_page_sec_2 How does it work?
+???.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#if defined(HAVE_TGMATH_H)
+#include <tgmath.h>
+#endif
+#if defined(HAVE_MATH_H)
+#include <math.h>
+#endif
+#include <stdio.h>
+#include <time.h>
+#include <fcntl.h>
+#include <audiofile.h>
+#include <tiffio.h>
+
+#include "spandsp.h"
+
+#define OUTPUT_FILE_NAME    "bell_mf.wav"
+
+int main(int argc, char *argv[])
+{
+    bell_mf_tx_state_t gen;
+    int16_t amp[16384];
+    int len;
+    AFfilehandle outhandle;
+    AFfilesetup filesetup;
+    int outframes;
+    int add_digits;
+
+    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);
+    }
+
+    bell_mf_tx_init(&gen);
+    len = bell_mf_tx(&gen, amp, 16384);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "123"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 16384);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "456"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "789"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "*#"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    add_digits = 1;
+    do
+    {
+        len = bell_mf_tx(&gen, amp, 160);
+        printf("Generated %d samples\n", len);
+        if (len > 0)
+        {
+            outframes = afWriteFrames(outhandle,
+                                      AF_DEFAULT_TRACK,
+                                      amp,
+                                      len);
+        }
+        if (add_digits)
+        {
+            if (bell_mf_tx_put(&gen, "1234567890"))
+            {
+                printf("Digit buffer full\n");
+                add_digits = 0;
+            }
+        }
+    }
+    while (len > 0);
+
+    bell_mf_tx_init(&gen);
+    len = bell_mf_tx(&gen, amp, 16384);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "123"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 16384);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "456"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "789"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "0*#"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    if (bell_mf_tx_put(&gen, "ABC"))
+        printf("Ooops\n");
+    len = bell_mf_tx(&gen, amp, 160);
+    printf("Generated %d samples\n", len);
+    outframes = afWriteFrames(outhandle,
+                              AF_DEFAULT_TRACK,
+                              amp,
+                              len);
+    add_digits = 1;
+    do
+    {
+        len = bell_mf_tx(&gen, amp, 160);
+        printf("Generated %d samples\n", len);
+        if (len > 0)
+        {
+            outframes = afWriteFrames(outhandle,
+                                      AF_DEFAULT_TRACK,
+                                      amp,
+                                      len);
+        }
+        if (add_digits)
+        {
+            if (bell_mf_tx_put(&gen, "1234567890"))
+            {
+                printf("Digit buffer full\n");
+                add_digits = 0;
+            }
+        }
+    }
+    while (len > 0);
+
+    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 ------------------------------------------------------------*/