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#include <cppunit/extensions/HelperMacros.h>
#include "cppUnitHelper.hxx"
#include "similarityHelper.hxx"
#include "XMLStorage.hxx"
#ifdef USE_FFTW
#include "IFFT_rfftw.hxx"
namespace CLAMTest
{
class IFFTFunctionalTest;
CPPUNIT_TEST_SUITE_REGISTRATION( IFFTFunctionalTest );
class IFFTFunctionalTest
: public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE( IFFTFunctionalTest );
CPPUNIT_TEST( test_FFTW_WithPowerOfTwoSignalSpectrum );
CPPUNIT_TEST( test_FFTW_WithNonPowerOfTwoSignalSpectrum );
CPPUNIT_TEST_SUITE_END();
protected:
static double smEqualityThreshold;
static bool smBack2BackDataLoaded;
static CLAM::Spectrum smReferenceP2Spectrum;
static CLAM::Spectrum smReferenceNP2Spectrum;
std::string mPathToTestData;
protected: // Auxiliary methods
void setupSine_F0400Hz_SR8kHz_1024samples( CLAM::Audio& object )
{
const CLAM::TSize samples = 1024;
const CLAM::TSize sampleRate = 8000;
const CLAM::TData sineFreq = 400.0f;
object.SetSize( samples );
object.SetSampleRate( sampleRate );
object.SetBeginTime( CLAM::TTime(0.0) );
object.SetEndTime( (CLAM::TTime(samples)/CLAM::TTime(sampleRate))*1000. );
for ( CLAM::TSize i=0; i<samples; i++ )
object.GetBuffer()[i]=0.625+0.5*sin(2.0*sineFreq*400.0*(((float)i)/sampleRate));
}
void setupSine_F0400Hz_SR8kHz_884samples( CLAM::Audio& object )
{
const CLAM::TSize samples = 884;
const CLAM::TSize sampleRate = 8000;
const CLAM::TData sineFreq = 400.0f;
object.SetSize( samples );
object.SetSampleRate( sampleRate );
object.SetBeginTime( CLAM::TTime(0.0) );
object.SetEndTime( CLAM::TTime(samples)/CLAM::TTime(sampleRate) *1000.);
for ( CLAM::TSize i=0; i<samples; i++ )
object.GetBuffer()[i]=0.625+0.5*sin(2.0*sineFreq*400.0*(((float)i)/sampleRate));
}
static void loadBack2BackDataset( const std::string& pathToTestData )
{
if ( !smBack2BackDataLoaded )
{
CLAM::XMLStorage::Restore( smReferenceP2Spectrum,
pathToTestData + "OneSineSpectrum_RectWindow_P2.xml" );
CLAM::XMLStorage::Restore( smReferenceNP2Spectrum,
pathToTestData + "OneSineSpectrum_RectWindow_NP2.xml" );
smBack2BackDataLoaded = true;
}
}
public:
void setUp()
{
mPathToTestData = GetTestDataDirectory("spectralData/");
loadBack2BackDataset( mPathToTestData );
}
void tearDown()
{
}
private:
void test_FFTW_WithPowerOfTwoSignalSpectrum()
{
// The signal that should be
CLAM::Audio expectedOutput;
// The signal synthesized by the IFFT processing
CLAM::Audio actualOutput;
setupSine_F0400Hz_SR8kHz_1024samples( expectedOutput );
actualOutput.SetSize( expectedOutput.GetSize() );
actualOutput.SetSampleRate( expectedOutput.GetSampleRate() );
CLAM::IFFTConfig processingConfig;
CLAM::IFFT_rfftw processing;
processingConfig.SetAudioSize( expectedOutput.GetSize() );
processing.Configure( processingConfig );
//(*processing.GetInPorts().Begin())->Attach( smReferenceP2Spectrum );
//(*processing.GetOutPorts().Begin())->Attach( actualOutput );
processing.Start();
processing.Do( smReferenceP2Spectrum, actualOutput );
processing.Stop();
double similarity = evaluateSimilarity( expectedOutput.GetBuffer(),
actualOutput.GetBuffer() );
CPPUNIT_ASSERT( smEqualityThreshold <= similarity );
}
void test_FFTW_WithNonPowerOfTwoSignalSpectrum()
{
// The signal that should be
CLAM::Audio expectedOutput;
// The signal synthesized by the IFFT processing
CLAM::Audio actualOutput;
setupSine_F0400Hz_SR8kHz_884samples( expectedOutput );
actualOutput.SetSize( expectedOutput.GetSize() );
actualOutput.SetSampleRate( expectedOutput.GetSampleRate() );
CLAM::IFFTConfig processingConfig;
CLAM::IFFT_rfftw processing;
processingConfig.SetAudioSize( expectedOutput.GetSize() );
processing.Configure( processingConfig );
//(*processing.GetInPorts().Begin())->Attach( smReferenceNP2Spectrum );
//(*processing.GetOutPorts().Begin())->Attach( actualOutput );
processing.Start();
processing.Do( smReferenceNP2Spectrum, actualOutput );
processing.Stop();
double similarity = evaluateSimilarity( expectedOutput.GetBuffer(),
actualOutput.GetBuffer() );
CPPUNIT_ASSERT( smEqualityThreshold <= similarity );
}
};
double IFFTFunctionalTest::smEqualityThreshold = 0.9999;
bool IFFTFunctionalTest::smBack2BackDataLoaded = false;
CLAM::Spectrum IFFTFunctionalTest::smReferenceP2Spectrum;
CLAM::Spectrum IFFTFunctionalTest::smReferenceNP2Spectrum;
}
#endif
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