X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=wdq2wav.cpp;h=60e58421c9a60554674abc11df48f2987b98d085;hb=746abe47c4eaefae0023dde9a8938b80bfcb8247;hp=f9c5ef80dd80fe5ff5ca044ac38e85de0fea1091;hpb=074ede98db9c520d4437dd5efcf2a9f64e8efe84;p=wdq2wav.git diff --git a/wdq2wav.cpp b/wdq2wav.cpp index f9c5ef8..60e5842 100644 --- a/wdq2wav.cpp +++ b/wdq2wav.cpp @@ -8,7 +8,7 @@ ** ** Copyright (c) 2003 Kevin Rosenberg ** -** $Id: wdq2wav.cpp,v 1.11 2003/01/21 11:45:38 kevin Exp $ +** $Id: wdq2wav.cpp,v 1.19 2003/02/24 12:53:46 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 @@ -26,11 +26,36 @@ #include -const char* g_szIdStr = "$Id: wdq2wav.cpp,v 1.11 2003/01/21 11:45:38 kevin Exp $"; +const char* g_szIdStr = "$Id: wdq2wav.cpp,v 1.19 2003/02/24 12:53:46 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) @@ -60,7 +85,7 @@ fileBasename (const char* filename) 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) @@ -83,12 +108,13 @@ usage (const char* progname) { std::cout << "usage: " << fileBasename (progname) << " [OPTIONS] \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"; } @@ -100,7 +126,7 @@ main (int argc, char *argv[]) const char* progname = argv[0]; - while ((c = getopt (argc, argv, "rqvdph")) != -1) { + while ((c = getopt (argc, argv, "rqvzdph")) != -1) { switch (c) { case 'r': std::cout << "Version " << g_szIdStr << std::endl; @@ -117,6 +143,9 @@ main (int argc, char *argv[]) case 'p': play = true; break; + case 'z': + g_ignore_zero = true; + break; case 'h': usage (progname); return (0); @@ -168,14 +197,14 @@ main (int argc, char *argv[]) std::cin.getline (wav_fname, MAX_INPUT_STR); } - if (! wdq2wav (wdq_fname, channel, wav_fname)) + if (! wdq2wav (wdq_fname, channel, wav_fname, play)) return 1; return 0; } bool -wdq2wav (const char* wdq_fname, const int channel, const char *wav_fname) +wdq2wav (const char* wdq_fname, const int channel, const char *wav_fname, bool play) { WindaqFile wdq (wdq_fname); @@ -230,6 +259,7 @@ wdq2wav (const char* wdq_fname, const int channel, const char *wav_fname) ", 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 << @@ -253,12 +283,15 @@ wdq2wav (const char* wdq_fname, const int channel, const char *wav_fname) return false; } + if (play) + wav.Play(); + return true; } WindaqFile::WindaqFile (const char* fname) - : m_fd(0), m_nChannels(0), m_nSamples(0), m_sample_rate(0), m_valid(false), + : m_valid(false), m_fd(0), m_nChannels(0), m_nSamples(0), m_sample_rate(0), m_strFile (fname) { } @@ -303,7 +336,7 @@ WindaqFile::ReadHeader () unsigned short int tmp2; m_valid = false; - if ((m_fd = open (m_strFile.c_str(), O_RDONLY)) < 0) { + if ((m_fd = open (m_strFile.c_str(), O_RDONLY | O_BINARY)) < 0) { m_error = "Unable to open file"; return false; } @@ -404,9 +437,6 @@ bool get_float8 (int fd, double& f) bool WindaqChannel::read_channel_data () { - unsigned short int tmp2; - unsigned int tmp4; - int fd = r_wdq.m_fd; m_data = new signed short int [r_wdq.m_nSamples * 2]; @@ -429,18 +459,19 @@ WindaqChannel::read_channel_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; - signed short int data_max, data_min; + unsigned long int i; + signed short int data_max = 0, data_min = 0; 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; @@ -469,6 +500,7 @@ WindaqChannel::read_channel_data () 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; } @@ -482,12 +514,20 @@ WavFile::WavFile (WindaqChannel& wdq_channel, const char* fname) 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); + if (max_value != 0.) + data_scale = 32767. / max_value; + } if (g_debug) { std::ostringstream os; @@ -495,10 +535,11 @@ WavFile::WavFile (WindaqChannel& wdq_channel, const char* fname) info_msg (os.str().c_str()); } - unsigned int nHeaderBytes = 44; - m_nFileBytes = nHeaderBytes + m_nSamples * m_nBytesPerSample; + m_nHeaderBytes = 44; + m_nDataBytes = m_nSamples * m_nBytesPerSample * m_nChannels; + m_nFileBytes = m_nHeaderBytes + m_nDataBytes; - unsigned int nHeaderShortInts = nHeaderBytes / sizeof(signed short int); + unsigned int nHeaderShortInts = m_nHeaderBytes / sizeof(signed short int); m_data = new signed short int [m_nSamples + nHeaderShortInts]; signed short int* input = wdq_channel.m_data; @@ -509,12 +550,16 @@ WavFile::WavFile (WindaqChannel& wdq_channel, const char* fname) 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 = (value + data_offset) * data_scale; + value += 0.5 - 32768; + } else + value = value * data_scale; + signed short int v = static_cast(value); #if WORDS_BIG_ENDIAN unsigned char* p = reinterpret_cast(&v); @@ -557,12 +602,11 @@ bool WavFile::fill_header () { char* pData = reinterpret_cast (m_data); - unsigned long data_bytes = m_nSamples * m_nBytesPerSample * m_nChannels; strncpy (pData, "RIFF", 4); // Length of file after 8 byte header - put_int4 (pData + 4, 36 + data_bytes); + put_int4 (pData + 4, 36 + m_nDataBytes); strncpy (pData + 8, "WAVEfmt ", 8); @@ -589,7 +633,7 @@ WavFile::fill_header () strncpy (pData + 36, "data", 4); - put_int4 (pData + 40, data_bytes); + put_int4 (pData + 40, m_nDataBytes); return true; } @@ -597,15 +641,11 @@ WavFile::fill_header () bool WavFile::WriteFile () { - unsigned short int tmp2; - unsigned int tmp4; - if (! m_valid) return false; if (m_fd == 0) - if ((m_fd = open (m_strFile.c_str(), O_WRONLY | 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()); @@ -625,6 +665,70 @@ WavFile::WriteFile () return true; } +#ifdef WIN32 +#include +#include +#elif defined(LINUX) +#include +#include +#endif +bool +WavFile::Play () +{ +#ifdef WIN32 + if (PlaySound ((LPCSTR) m_data, 0, SND_MEMORY | SND_NODEFAULT)) + return true; +#elif defined(LINUX) + int fd; + if ((fd = open ("/dev/dsp",O_WRONLY)) == -1) { + error_msg ("Error opening /dev/dsp"); + return false; + } + + int format = AFMT_S16_LE; + if (ioctl (fd, SNDCTL_DSP_SETFMT, &format) == -1) { + error_msg ("Error setting DSP format"); + close(fd); return false; + } + if (format != AFMT_S16_LE) { + error_msg ("DSP Format not set"); + close(fd); return false; + } + int channels = m_nChannels; + if (ioctl (fd, SNDCTL_DSP_CHANNELS, &format) == -1) { + error_msg ("Error setting number of channels"); + close(fd); return false; + } + if (channels != m_nChannels) { + error_msg ("Number of channels not set"); + close(fd); return false; + } + + unsigned int speed = static_cast(m_rate + 0.5); + if (ioctl (fd, SNDCTL_DSP_SPEED, &speed) == -1) { + error_msg ("Error setting sample rate"); + close(fd); return false; + } + if (speed != m_rate && ! g_quiet) { + std::ostringstream os; + os << "Warning: Sample rate set to " << speed << ", not " << m_rate; + error_msg (os.str().c_str()); + } + + if (write (fd, reinterpret_cast(m_data) + m_nHeaderBytes, m_nDataBytes) != + m_nDataBytes) { + error_msg ("Error writing audio samples"); + close(fd); return false; + } + + close (fd); + return true; +#else +#endif + + return false; +} +