42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
#include "waverecorder.h"
|
|
|
|
// Qt includes
|
|
#include <QVector>
|
|
|
|
// system includes
|
|
#include <stdexcept>
|
|
|
|
WaveRecorder::WaveRecorder(const quint16 channels, const quint32 frequency, const QString &filename) :
|
|
m_file(filename),
|
|
m_dataStream(&m_file)
|
|
{
|
|
m_dataStream.setByteOrder(QDataStream::LittleEndian);
|
|
|
|
if(!m_file.open(QIODevice::WriteOnly | QIODevice::Truncate))
|
|
throw std::runtime_error(QString("Could open file %0 because %1").arg(m_file.fileName(), m_file.errorString()).toStdString());
|
|
|
|
m_dataStream << quint8('R') << quint8('I') << quint8('F') << quint8('F');
|
|
m_dataStream << quint32(0);
|
|
|
|
m_dataStream << quint8('W') << quint8('A') << quint8('V') << quint8('E');
|
|
|
|
m_dataStream << quint8('f') << quint8('m') << quint8('t') << quint8(' ');
|
|
m_dataStream << quint32(16);
|
|
m_dataStream << quint16(1); // audio format (pcm)
|
|
m_dataStream << channels;
|
|
m_dataStream << frequency;
|
|
m_dataStream << quint32(frequency * channels * sizeof(qint32)); // byte rate
|
|
m_dataStream << quint16(sizeof(qint32) * channels); // block align
|
|
m_dataStream << quint16(sizeof(qint32) * 8); // bits per sample
|
|
|
|
m_dataStream << quint8('d') << quint8('a') << quint8('t') << quint8('a');
|
|
m_dataStream << quint32(0);
|
|
|
|
m_dataStream.setByteOrder(QDataStream::BigEndian);
|
|
}
|
|
|
|
void WaveRecorder::addSample(const qint32 sample)
|
|
{
|
|
m_dataStream << sample;
|
|
}
|