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#include <cppunit/extensions/HelperMacros.h>
#include "cppUnitHelper.hxx"
#include "MultiChannelAudioFileReader.hxx"
#include "MultiChannelAudioFileWriter.hxx"
#include "similarityHelper.hxx"
#include "CLAM_Math.hxx"
#include "OSDefines.hxx"
namespace CLAMTest
{
class MultiChannelAudioFileWriterFunctionalTest;
CPPUNIT_TEST_SUITE_REGISTRATION( MultiChannelAudioFileWriterFunctionalTest );
class MultiChannelAudioFileWriterFunctionalTest
: public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE( MultiChannelAudioFileWriterFunctionalTest );
CPPUNIT_TEST( testDo_PCM_WritesRightAKnownSignal );
CPPUNIT_TEST( testDo_DoubleWriting_Is_Not_Allowed );
CPPUNIT_TEST( testDo_PCM_WritesTheSameThatWasRead );
CPPUNIT_TEST( testDo_OggVorbis_WritesTheSameThatWasRead );
CPPUNIT_TEST_SUITE_END();
protected:
std::string mPathToTestData;
public:
void setUp()
{
mPathToTestData = GetTestDataDirectory();
}
void tearDown()
{
}
private:
void testDo_PCM_WritesRightAKnownSignal()
{
CLAM::MultiChannelAudioFileWriterConfig cfgWriter;
cfgWriter.SetTargetFile( "twosines-stereo.wav" );
CLAM::MultiChannelAudioFileWriter procWriter(cfgWriter);
CPPUNIT_ASSERT_EQUAL( true, procWriter.Configure( cfgWriter ) );
std::vector<CLAM::Audio> samples(2);
samples[0].SetSize( 256 );
samples[1].SetSize( 256 );
procWriter.Start();
int framesSynth = 0;
CLAM::TData srate = 44100.;
CLAM::TData f0 = 100;
CLAM::TData f1 = 400;
while ( framesSynth < 100 )
{
for ( int i = 0; i < 256; i++ )
{
samples[0].GetBuffer()[i] = 0.0;
samples[1].GetBuffer()[i] = 0.0;
}
procWriter.Do(samples);
framesSynth++;
}
// cosinus starts at zero ( -pi/2 intial phase )
CLAM::TData phi0 = -M_PI / 2.0;
CLAM::TData phi1 = -M_PI / 2.0;
CLAM::TData dphi0 = (2.0*M_PI*f0) / srate;
CLAM::TData dphi1 = (2.0*M_PI*f1) / srate;
while( framesSynth < 200 )
{
for ( int i = 0; i < 256; i++ )
{
samples[0].GetBuffer()[i] = 0.5 * cos( phi0 );
samples[1].GetBuffer()[i] = 0.5 * cos( phi1 );
phi0 += dphi0;
phi1 += dphi1;
}
procWriter.Do(samples);
framesSynth++;
}
procWriter.Stop();
}
void testDo_DoubleWriting_Is_Not_Allowed()
{
CLAM::MultiChannelAudioFileWriterConfig cfgWriter;
cfgWriter.SetTargetFile( "twosines-stereo.wav" );
CLAM::MultiChannelAudioFileWriter procWriter;
CLAM::MultiChannelAudioFileWriter procWriter2;
procWriter.Configure( cfgWriter );
CPPUNIT_ASSERT_EQUAL( false, procWriter2.Configure( cfgWriter ) );
}
void testDo_PCM_WritesTheSameThatWasRead()
{
CLAM::MultiChannelAudioFileReaderConfig cfgReader;
cfgReader.SetSourceFile( mPathToTestData+"test-stereo-decoding.wav" );
CLAM::MultiChannelAudioFileReader procReader(cfgReader);
CLAM::MultiChannelAudioFileWriterConfig cfgWriter;
cfgWriter.SetTargetFile( "test-stereo-decoding-copy.wav" );
cfgWriter.SetNChannels( procReader.GetHeader().GetChannels() );
cfgWriter.SetSampleRate( procReader.GetHeader().GetSampleRate() );
// Not yet supported
// cfgWriter.SetFormat( procReader.GetHeader().GetFormat() );
// cfgWriter.SetEncoding( procReader.GetHeader().GetEncoding() );
// cfgWriter.SetEndianess( procReader.GetHeader().GetEndianess() );
CLAM::MultiChannelAudioFileWriter procWriter;
CPPUNIT_ASSERT_EQUAL( true,
procWriter.Configure( cfgWriter ) );
std::vector<CLAM::Audio> samples(2);
samples[0].SetSize( 256 );
samples[1].SetSize( 256 );
procReader.Start();
procWriter.Start();
int framesRead = 0;
while( procReader.Do(samples) )
{
framesRead++;
procWriter.Do(samples);
}
procReader.Stop();
procWriter.Stop();
// Once written to disk, now we recover it, and
// check it is the same frame by frame
CLAM::MultiChannelAudioFileReader procReader2;
cfgReader.SetSourceFile( "test-stereo-decoding-copy.wav" );
CPPUNIT_ASSERT_EQUAL( true, procReader2.Configure( cfgReader ) );
std::vector<CLAM::Audio> samples2(2);
samples2[0].SetSize( 256 );
samples2[1].SetSize( 256 );
procReader.Start();
procReader2.Start();
int framesChecked = 0;
while( procReader.Do(samples) && procReader2.Do(samples2) )
{
framesChecked++;
double simLeft = evaluateSimilarity( samples[0].GetBuffer(),
samples2[0].GetBuffer() );
CPPUNIT_ASSERT
( simLeft >= 0.9999 );
double simRight = evaluateSimilarity( samples[1].GetBuffer(),
samples2[1].GetBuffer() );
CPPUNIT_ASSERT
( simRight >= 0.9999 );
}
procReader.Stop();
procReader2.Stop();
CPPUNIT_ASSERT_EQUAL( framesRead,
framesChecked );
}
void testDo_OggVorbis_WritesTheSameThatWasRead()
{
CLAM::MultiChannelAudioFileReaderConfig cfgReader;
cfgReader.SetSourceFile( mPathToTestData+"ElvisStereo.wav" );
CLAM::MultiChannelAudioFileReader procReader;
CPPUNIT_ASSERT_EQUAL( true,
procReader.Configure( cfgReader ) );
CLAM::MultiChannelAudioFileWriterConfig cfgWriter;
cfgWriter.SetTargetFile( "ElvisStereo-copy.ogg" );
cfgWriter.SetSampleRate( procReader.GetHeader().GetSampleRate());
cfgWriter.SetNChannels( procReader.GetHeader().GetChannels());
CLAM::MultiChannelAudioFileWriter procWriter;
CPPUNIT_ASSERT_EQUAL( true,
procWriter.Configure( cfgWriter ) );
std::vector<CLAM::Audio> samples(2);
samples[0].SetSize( 4096 );
samples[1].SetSize( 4096 );
procReader.Start();
procWriter.Start();
CLAM::TSize framesRead = 0;
while( procReader.Do(samples) )
{
framesRead++;
procWriter.Do(samples);
}
procReader.Stop();
procWriter.Stop();
// Once written to disk, now we recover it, and
// check it is the same frame by frame
CLAM::MultiChannelAudioFileReader procReader2;
cfgReader.SetSourceFile( "ElvisStereo-copy.ogg" );
CPPUNIT_ASSERT_EQUAL( true, procReader2.Configure( cfgReader ) );
std::vector<CLAM::Audio> samples2(2);
samples2[0].SetSize( 4096 );
samples2[1].SetSize( 4096 );
procReader.Start();
procReader2.Start();
int framesChecked = 0;
double maxSimLeft = -1e20;
int maxSimLeftFrame = 0;
double minSimLeft = 1e20;
int minSimLeftFrame = 0;
double averageSimLeft = 0.0;
double maxSimRight = -1e20;
int maxSimRightFrame = 0;
double minSimRight = 1e20;
int minSimRightFrame = 0;
double averageSimRight = 0.0;
while( procReader.Do(samples) && procReader2.Do(samples2) )
{
framesChecked++;
double simLeft = evaluateSimilarity( samples[0].GetBuffer(),
samples2[0].GetBuffer() );
double simRight = evaluateSimilarity( samples[1].GetBuffer(),
samples2[1].GetBuffer() );
if ( simLeft > maxSimLeft )
{
maxSimLeft = simLeft;
maxSimLeftFrame = framesChecked;
}
if ( simLeft < minSimLeft )
{
minSimLeft = simLeft;
minSimLeftFrame = framesChecked;
}
averageSimLeft += simLeft;
if ( simRight > maxSimRight )
{
maxSimRight = simRight;
maxSimRightFrame = framesChecked;
}
if ( simRight < minSimRight )
{
minSimRight = simRight;
minSimRightFrame = framesChecked;
}
averageSimRight += simRight;
CPPUNIT_ASSERT
( simLeft >= 0.9 );
CPPUNIT_ASSERT
( simRight >= 0.9 );
}
procReader.Stop();
procReader2.Stop();
averageSimLeft *= (1.0/double(framesChecked));
averageSimRight *= (1.0/double(framesChecked));
/*
std::cout << std::endl;
std::cout << "test_Do_OggVorbis" << std::endl;
std::cout << "Maximum Left similarity: " << maxSimLeft << " at " << maxSimLeftFrame;
std::cout << std::endl;
std::cout << "Minimum Left similarity: " << minSimLeft << " at " << minSimLeftFrame;
std::cout << std::endl;
std::cout << "Average Left similarity: " << averageSimLeft << std::endl;
std::cout << "Maximum Right similarity: " << maxSimRight << " at " << maxSimRightFrame;
std::cout << std::endl;
std::cout << "Minimum Right similarity: " << minSimRight << " at " << minSimRightFrame;
std::cout << std::endl;
std::cout << "Average Right similarity: " << averageSimRight << std::endl;
*/
CPPUNIT_ASSERT( fabs( maxSimLeft - 0.999595) < 1e-2 );
CPPUNIT_ASSERT( fabs( minSimLeft - 0.980736) < 1e-2 );
CPPUNIT_ASSERT( fabs( averageSimLeft - 0.99788 ) < 1e-2 );
CPPUNIT_ASSERT( fabs( maxSimRight - 0.999595) < 1e-2 );
CPPUNIT_ASSERT( fabs( minSimRight - 0.980736) < 1e-2 );
CPPUNIT_ASSERT( fabs( averageSimRight - 0.997888) < 1e-2 );
CPPUNIT_ASSERT_EQUAL( framesRead,
framesChecked );
}
};
}
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