**
** Copyright (c) 2003 Kevin Rosenberg
**
-** $Id: wdq2wav.cpp,v 1.15 2003/02/12 06:10:19 kevin Exp $
+** $Id: wdq2wav.cpp,v 1.17 2003/02/24 08:40:25 kevin Exp $
**
** 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
#include <wdq2wav.h>
-const char* g_szIdStr = "$Id: wdq2wav.cpp,v 1.15 2003/02/12 06:10:19 kevin Exp $";
+const char* g_szIdStr = "$Id: wdq2wav.cpp,v 1.17 2003/02/24 08:40:25 kevin Exp $";
bool g_quiet = false;
bool g_verbose = false;
bool g_debug = false;
+bool g_ignore_zero = false;
+
+#ifdef WIN32
+#define lseek _lseek
+#define close _close
+#define open _open
+#define read _read
+#define write _write
+#define O_BINARY _O_BINARY
+#define O_RDONLY _O_RDONLY
+#define O_WRONLY _O_WRONLY
+#define O_RDWR _O_RDRW
+#define O_TRUNC _O_TRUNC
+#define O_CREAT _O_CREAT
+const int g_fileMode = _S_IWRITE | _S_IREAD;
+struct fpos_t std::_Fpz = {0,0};
+#else
+const int g_fileMode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
// Define as NULL for non-Windows platforms
#ifndef O_BINARY
#define O_BINARY 0
#endif
-
+#endif
+
void
error_msg (const char *msg)
char *
str_rm_tail (char *str, const char* const charlist)
{
- int i;
+ size_t i;
for (i = strlen(str) - 1; i >= 0; i--)
if (strchr (charlist, str[i]) != NULL)
{
std::cout << "usage: " << fileBasename (progname) << " [OPTIONS] <wdq-file> <channel-number> <wav-file>\n";
std::cout << "OPTIONS\n";
- std::cout << " -p Play channel through audio system\n";
- std::cout << " -q Supress all messages\n";
- std::cout << " -v Verbose mode\n";
- std::cout << " -d Debug mode\n";
- std::cout << " -r Print program version\n";
- std::cout << " -h Print this help message\n";
+ std::cout << " -p Play channel through audio system\n";
+ std::cout << " -q Supress all messages\n";
+ std::cout << " -z Scale output without regard for windaq zero point\n";
+ std::cout << " -v Verbose mode\n";
+ std::cout << " -d Debug mode\n";
+ std::cout << " -r Print program version\n";
+ std::cout << " -h Print this help message\n";
}
", maximum: " << wdq_channel.m_max_raw_data;
info_msg (os3.str().c_str());
}
+
if (g_debug) {
std::ostringstream os4;
os4 << " Scaled minimum: " << wdq_channel.m_min_scaled_data <<
m_units = units;
unsigned int row_bytes = 2 * r_wdq.m_nChannels;
- signed short int sample_row [row_bytes];
+ signed short int *sample_row = new signed short int [row_bytes];
signed short int* psample = &sample_row[m_channel - 1];
lseek (fd, r_wdq.m_nHeader_bytes, SEEK_SET);
- long int i;
+ unsigned long int i;
signed short int data_max, data_min;
for (i = 0; i < r_wdq.m_nSamples; i++) {
if (read (fd, sample_row, row_bytes) != row_bytes) {
std::ostringstream os;
os << "Error reading file at " << i;
error_msg (os.str().c_str());
+ delete sample_row;
return false;
}
signed short int v = *psample;
m_max_scaled_data = (m_slope * data_max) + m_intercept;
m_min_scaled_data = (m_slope * data_min) + m_intercept;
+ delete sample_row;
return true;
}
m_nBitsPerSample = 16;
m_nBytesPerSample = 2;
m_rate = wdq_channel.r_wdq.m_sample_rate;
-
- double data_offset = -wdq_channel.m_min_scaled_data;
- double data_scale = 0.;
- if (wdq_channel.m_max_scaled_data != wdq_channel.m_min_scaled_data)
- data_scale = 65535. / (wdq_channel.m_max_scaled_data -
- wdq_channel.m_min_scaled_data);
+
+ double data_offset = 0, data_scale = 0;
+ if (g_ignore_zero) {
+ data_offset = -wdq_channel.m_min_scaled_data;
+ if (wdq_channel.m_max_scaled_data != wdq_channel.m_min_scaled_data)
+ data_scale = 65535. / (wdq_channel.m_max_scaled_data -
+ wdq_channel.m_min_scaled_data);
+ } else {
+ double max_value = fabs(wdq_channel.m_max_scaled_data);
+ if (fabs(wdq_channel.m_min_scaled_data) > max_value)
+ max_value = fabs(wdq_channel.m_min_scaled_data);
+ data_scale = 32767. / max_value;
+ }
if (g_debug) {
std::ostringstream os;
if (! fill_header ())
return;
- long int i;
+ unsigned long int i;
for (i = 0; i < m_nSamples; i++) {
double value = input[i];
value = (slope * value) + intercept;
value = (value + data_offset) * data_scale;
- value += 0.5 - 32768;
+ if (g_ignore_zero)
+ value += 0.5 - 32768;
signed short int v = static_cast<signed short int>(value);
#if WORDS_BIG_ENDIAN
unsigned char* p = reinterpret_cast<unsigned char*>(&v);
return false;
if (m_fd == 0)
- if ((m_fd = open (m_strFile.c_str(), O_WRONLY | O_BINARY | O_TRUNC | O_CREAT,
- S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) == 0) {
+ if ((m_fd = open (m_strFile.c_str(), O_WRONLY | O_BINARY | O_TRUNC | O_CREAT, g_fileMode)) == 0) {
std::ostringstream os;
os << "Error opening output file " << m_strFile.c_str();
error_msg (os.str().c_str());