void Engine::startRecording()
{
if (m_audioInput) {
if (QAudio::AudioInput == m_mode &&
QAudio::SuspendedState == m_state) {
m_audioInput->resume();
} else {
m_spectrumAnalyser.cancelCalculation();
spectrumChanged(0, 0, FrequencySpectrum());
m_buffer.fill(0);
setRecordPosition(0, true);
stopPlayback();
m_mode = QAudio::AudioInput;
CHECKED_CONNECT(m_audioInput, SIGNAL(stateChanged(QAudio::State)),
this, SLOT(audioStateChanged(QAudio::State)));
CHECKED_CONNECT(m_audioInput, SIGNAL(notify()),
this, SLOT(audioNotify()));
m_count = 0;
m_dataLength = 0;
emit dataLengthChanged(0);
m_audioInputIODevice = m_audioInput->start();
CHECKED_CONNECT(m_audioInputIODevice, SIGNAL(readyRead()),
this, SLOT(audioDataReady()));
}
}
}
void Engine::startPlayback()
{
if (m_audioOutput) {
if (QAudio::AudioOutput == m_mode &&
QAudio::SuspendedState == m_state) {
m_audioOutput->resume();
} else {
m_spectrumAnalyser.cancelCalculation();
spectrumChanged(0, 0, FrequencySpectrum());
setPlayPosition(0, true);
m_mode = QAudio::AudioOutput;
CHECKED_CONNECT(m_audioOutput, SIGNAL(stateChanged(QAudio::State)),
this, SLOT(audioStateChanged(QAudio::State)));
CHECKED_CONNECT(m_audioOutput, SIGNAL(notify()),
this, SLOT(audioNotify()));
m_count = 0;
if (m_file) {
m_file->seek(0);
m_bufferPosition = 0;
m_dataLength = 0;
m_audioOutput->start(m_file);
} else {
m_audioOutputIODevice.close();
m_audioOutputIODevice.setBuffer(&m_buffer);
m_audioOutputIODevice.open(QIODevice::ReadOnly);
m_audioOutput->start(&m_audioOutputIODevice);
}
}
}
}
void Engine::startPlayback()
{
if (m_audioOutput) {
if (QAudio::AudioOutput == m_mode &&
QAudio::SuspendedState == m_state) {
#ifdef Q_OS_WIN
// The Windows backend seems to internally go back into ActiveState
// while still returning SuspendedState, so to ensure that it doesn't
// ignore the resume() call, we first re-suspend
m_audioOutput->suspend();
#endif
m_audioOutput->resume();
} else {
m_spectrumAnalyser.cancelCalculation();
spectrumChanged(0, 0, FrequencySpectrum());
setPlayPosition(0, true);
stopRecording();
m_mode = QAudio::AudioOutput;
CHECKED_CONNECT(m_audioOutput, SIGNAL(stateChanged(QAudio::State)),
this, SLOT(audioStateChanged(QAudio::State)));
CHECKED_CONNECT(m_audioOutput, SIGNAL(notify()),
this, SLOT(audioNotify()));
m_count = 0;
if (m_file) {
m_file->seek(0);
m_bufferPosition = 0;
m_dataLength = 0;
m_audioOutput->start(m_file);
} else {
m_audioOutputIODevice.close();
m_audioOutputIODevice.setBuffer(&m_buffer);
m_audioOutputIODevice.open(QIODevice::ReadOnly);
m_audioOutput->start(&m_audioOutputIODevice);
}
}
}
}
