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////////////////////////////////////////////////////////////////////////////////
///
/// DllTest.cpp : This is small app main routine used for testing sound processing
/// with SoundTouch.dll API
///
/// Author : Copyright (c) Olli Parviainen
/// Author e-mail : oparviai 'at' iki.fi
/// SoundTouch WWW: http://www.surina.net/soundtouch
///
////////////////////////////////////////////////////////////////////////////////
#include <string>
#include <iostream>
#include <fstream>
#include "../SoundTouchDLL.h"
#include "../../SoundStretch/WavFile.h"
using namespace std;
// DllTest main
int main(int argc, char *argv[])
{
// Check program arguments
if (argc < 4)
{
cout << "Too few arguments. Usage: DllTest [infile.wav] [outfile.wav] [sampletype]" << endl;
return -1;
}
const char *inFileName = argv[1];
const char *outFileName = argv[2];
string str_sampleType = argv[3];
bool floatSample;
if (str_sampleType.compare("float") == 0)
{
floatSample = true;
}
else if (str_sampleType.compare("short") == 0)
{
floatSample = false;
}
else
{
cerr << "Missing or invalid sampletype '" << str_sampleType << "'. Expected either short or float" << endl;
return -1;
}
try
{
// Open input & output WAV files
WavInFile inFile(inFileName);
int numChannels = inFile.getNumChannels();
int sampleRate = inFile.getSampleRate();
WavOutFile outFile(outFileName, sampleRate, inFile.getNumBits(), numChannels);
// Create SoundTouch DLL instance
HANDLE st = soundtouch_createInstance();
soundtouch_setChannels(st, numChannels);
soundtouch_setSampleRate(st, sampleRate);
soundtouch_setPitchSemiTones(st, 2);
cout << "processing with soundtouch.dll routines";
if (floatSample)
{
// Process file with SoundTouch.DLL float sample (default) API
float fbuffer[2048];
int nmax = 2048 / numChannels;
cout << " using float api ..." << endl;
while (inFile.eof() == false)
{
int n = inFile.read(fbuffer, nmax * numChannels) / numChannels;
soundtouch_putSamples(st, fbuffer, n);
do
{
n = soundtouch_receiveSamples(st, fbuffer, nmax);
outFile.write(fbuffer, n * numChannels);
} while (n > 0);
}
}
else
{
// Process file with SoundTouch.DLL int16 (short) sample API.
// Notice that SoundTouch.dll does internally processing using floating
// point routines so the int16 API is not any faster, but provided for
// convenience.
short i16buffer[2048];
int nmax = 2048 / numChannels;
cout << " using i16 api ..." << endl;
while (inFile.eof() == false)
{
int n = inFile.read(i16buffer, nmax * numChannels) / numChannels;
soundtouch_putSamples_i16(st, i16buffer, n);
do
{
n = soundtouch_receiveSamples_i16(st, i16buffer, nmax);
outFile.write(i16buffer, n * numChannels);
} while (n > 0);
}
}
soundtouch_destroyInstance(st);
cout << "done." << endl;
}
catch (const runtime_error &e)
{
cerr << e.what() << endl;
}
return 0;
}
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