void SonicBoosterTest::signed16Data() {
QAudioBuffer buffer = getBuffer<qint16>();
qint16* raw_data = (qint16*)buffer.data();
raw_data[0] = 0;
raw_data[1] = 200;
raw_data[2] = -200;
QVERIFY(m_booster_m_6->boost(buffer));
QVERIFY(m_booster_p_6->boost(buffer));
int len0_5 = 0;
const qint16* boosted0_5 = (qint16*)m_booster_m_6->getBoostedBuffer(len0_5);
QCOMPARE(len0_5, 6);
QCOMPARE((int)boosted0_5[0], 0);
QCOMPARE((int)boosted0_5[1], (int)(200 * m_boost_factor_m_6));
QCOMPARE((int)boosted0_5[2], (int)(-200 * m_boost_factor_m_6));
int len1_5 = 0;
const qint16* boosted1_5 = (qint16*)m_booster_p_6->getBoostedBuffer(len1_5);
QCOMPARE(len1_5, 6);
QCOMPARE((int)boosted1_5[0], 0);
QCOMPARE((int)boosted1_5[1], (int)(200 * m_boost_factor_p_6));
QCOMPARE((int)boosted1_5[2], (int)(-200 * m_boost_factor_p_6));
}
void SonicBoosterTest::unsigned8Data() {
QAudioBuffer buffer = getBuffer<quint8>();
quint8* raw_data = (quint8*)buffer.data();
raw_data[0] = 128;
raw_data[1] = 128 + 50;
raw_data[2] = 128 - 50;
QVERIFY(m_booster_m_6->boost(buffer));
QVERIFY(m_booster_p_6->boost(buffer));
int len0_5 = 0;
const quint8* boosted0_5 = (quint8*)m_booster_m_6->getBoostedBuffer(len0_5);
QCOMPARE(len0_5, 3);
QCOMPARE((int)boosted0_5[0], 128);
QCOMPARE((int)boosted0_5[1], 128 + (int)(50 * m_boost_factor_m_6));
QCOMPARE((int)boosted0_5[2], 128 - (int)(50 * m_boost_factor_m_6));
int len1_5 = 0;
const quint8* boosted1_5 = (quint8*)m_booster_p_6->getBoostedBuffer(len1_5);
QCOMPARE(len1_5, 3);
QCOMPARE((int)boosted1_5[0], 128);
QCOMPARE((int)boosted1_5[1], 128 + (int)(50 * m_boost_factor_p_6));
QCOMPARE((int)boosted1_5[2], 128 - (int)(50 * m_boost_factor_p_6));
}
void AudioBuffer::init(QAudioBuffer &qtbuffer){
qDebug() << "void AudioBuffer::init(...) called";
QAudioFormat audioFormat = qtbuffer.format();
this->hzFreq = audioFormat.sampleRate();
this->durationInMs = qtbuffer.duration()*1000;
QAudioFormat::SampleType sampleType
= audioFormat.sampleType();
int frameCount = qtbuffer.frameCount();
int nChannels = audioFormat.channelCount();
int bytesPerFrame = audioFormat.bytesPerFrame();
int bytesPerValue = bytesPerFrame/nChannels;
void *firstData = qtbuffer.data();
this->bufferSize = frameCount;
this->buffer = QSharedPointer<SharedBuffer>(
new SharedBuffer);
this->buffer->buffer = new int[this->bufferSize];
this->mean = 0;
const int tempReducFactor = 500;
qint64 meanOfSquare = 0;
for(int i=0; i<frameCount; i++){
int currentValue = 0;
for(int j=0; j<nChannels; j++){
int currentPos
= i*bytesPerFrame
+ j*bytesPerValue;
void *valPos = (void *)(((quint8 *)firstData) + currentPos);
if(sampleType == QAudioFormat::SignedInt){
if(bytesPerValue == 1){
quint8 val = *((quint8*)valPos);
currentValue += val;
}else if(bytesPerValue == 2){
quint16 val = *((quint16*)valPos);
currentValue += val;
}else if(bytesPerValue == 4){
quint32 val = *((quint32*)valPos);
currentValue += val;
}else if(bytesPerValue == 8){
quint64 val = *((quint64*)valPos);
currentValue += val;
}
}else if(sampleType == QAudioFormat::UnSignedInt){
if(bytesPerValue == 1){
qint8 val = *((qint8*)valPos);
currentValue += val;
}else if(bytesPerValue == 2){
qint16 val = *((qint16*)valPos);
currentValue += val;
}else if(bytesPerValue == 4){
qint32 val = *((qint32*)valPos);
currentValue += val;
}else if(bytesPerValue == 8){
qint64 val = *((qint64*)valPos);
currentValue += val;
}
}else if(sampleType == QAudioFormat::Float){
qreal val = *((qreal*)valPos);
currentValue += val;
}
}
currentValue /= nChannels;
currentValue /= tempReducFactor;
this->buffer->buffer[i] = currentValue;
this->mean += currentValue;
meanOfSquare += currentValue*currentValue;
if(meanOfSquare < 0){
Q_ASSERT(false);
}
}
this->mean /= frameCount;
meanOfSquare /= frameCount;
qint64 squaredMean =
this->mean
* this->mean;
this->var = meanOfSquare
- squaredMean;
this->var *= tempReducFactor * tempReducFactor;
this->mean *= tempReducFactor;
this->sd = qSqrt(this->var);
qDebug() << "void AudioBuffer::init(...) end";
}
