--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.3/spandsp-0.0.3/tests/v42bis_tests.c	Fri Jun 25 16:00:21 2010 +0200
@@ -0,0 +1,173 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * v42bis_tests.c
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2005 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: v42bis_tests.c,v 1.18 2006/11/19 14:07:28 steveu Exp $
+ */
+
+/* THIS IS A WORK IN PROGRESS. IT IS NOT FINISHED. */
+
+/*! \page v42bis_tests_page V.42bis tests
+\section v42bis_tests_page_sec_1 What does it do?
+These tests compress the contents of a file specified on the command line, writing
+the compressed data to v42bis_tests.v42bis. They then read back the contents of the
+compressed file, decompress, and write the results to v42bis_tests.out. The contents
+of this file should exactly match the original file.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <ctype.h>
+#if defined(HAVE_TGMATH_H)
+#include <tgmath.h>
+#endif
+#if defined(HAVE_MATH_H)
+#include <math.h>
+#endif
+#include <assert.h>
+#include <tiffio.h>
+
+#include "spandsp.h"
+
+#define COMPRESSED_FILE_NAME        "v42bis_tests.v42bis"
+#define OUTPUT_FILE_NAME            "v42bis_tests.out"
+
+int in_octets_to_date = 0;
+int out_octets_to_date = 0;
+
+static void frame_handler(void *user_data, const uint8_t *buf, int len)
+{
+    int ret;
+    
+    if ((ret = write((intptr_t) user_data, buf, len)) != len)
+        fprintf(stderr, "Write error %d/%d\n", ret, errno);
+    out_octets_to_date += len;
+}
+
+static void data_handler(void *user_data, const uint8_t *buf, int len)
+{
+    int ret;
+
+    if ((ret = write((intptr_t) user_data, buf, len)) != len)
+        fprintf(stderr, "Write error %d/%d\n", ret, errno);
+    out_octets_to_date += len;
+}
+
+int main(int argc, char *argv[])
+{
+    int len;
+    v42bis_state_t state_a;
+    v42bis_state_t state_b;
+    uint8_t buf[1024];
+    int in_fd;
+    int v42bis_fd;
+    int out_fd;
+    int do_compression;
+    int do_decompression;
+    time_t now;
+
+    do_compression = TRUE;
+    do_decompression = TRUE;
+    if (argc < 2)
+    {
+        fprintf(stderr, "Usage: %s <file>\n", argv[0]);
+        exit(2);
+    }
+    if (do_compression)
+    {
+        if ((in_fd = open(argv[1], O_RDONLY)) < 0)
+        {
+            fprintf(stderr, "Error opening file '%s'.\n", argv[1]);
+            exit(2);
+        }
+        if ((v42bis_fd = open(COMPRESSED_FILE_NAME, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0)
+        {
+            fprintf(stderr, "Error opening file '%s'.\n", COMPRESSED_FILE_NAME);
+            exit(2);
+        }
+
+        time(&now);
+        v42bis_init(&state_a, 3, 512, 6, frame_handler, (void *) (intptr_t) v42bis_fd, 512, data_handler, NULL, 512);
+        v42bis_compression_control(&state_a, V42BIS_COMPRESSION_MODE_ALWAYS);
+        in_octets_to_date = 0;
+        out_octets_to_date = 0;
+        while ((len = read(in_fd, buf, 1024)) > 0)
+        {
+            if (v42bis_compress(&state_a, buf, len))
+            {
+                fprintf(stderr, "Bad return code from compression\n");
+                exit(2);
+            }
+            in_octets_to_date += len;
+        }
+        v42bis_compress_flush(&state_a);
+        printf("%d bytes compressed to %d bytes in %lds\n", in_octets_to_date, out_octets_to_date, time(NULL) - now);
+        close(in_fd);
+        close(v42bis_fd);
+    }
+
+    if (do_decompression)
+    {
+        /* Now open the files for the decompression. */
+        if ((v42bis_fd = open(COMPRESSED_FILE_NAME, O_RDONLY)) < 0)
+        {
+            fprintf(stderr, "Error opening file '%s'.\n", COMPRESSED_FILE_NAME);
+            exit(2);
+        }
+        if ((out_fd = open(OUTPUT_FILE_NAME, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0)
+        {
+            fprintf(stderr, "Error opening file '%s'.\n", OUTPUT_FILE_NAME);
+            exit(2);
+        }
+    
+        time(&now);
+        v42bis_init(&state_b, 3, 512, 6, frame_handler, (void *) (intptr_t) v42bis_fd, 512, data_handler, (void *) (intptr_t) out_fd, 512);
+        in_octets_to_date = 0;
+        out_octets_to_date = 0;
+        while ((len = read(v42bis_fd, buf, 1024)) > 0)
+        {
+            if (v42bis_decompress(&state_b, buf, len))
+            {
+                fprintf(stderr, "Bad return code from decompression\n");
+                exit(2);
+            }
+            in_octets_to_date += len;
+        }
+        v42bis_decompress_flush(&state_b);
+        printf("%d bytes decompressed to %d bytes in %lds\n", in_octets_to_date, out_octets_to_date, time(NULL) - now);
+        close(v42bis_fd);
+        close(out_fd);
+    }
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/