C++ (Cpp) QAudioOutputPrivate Exemples

Exemple #1

void QT_WIN_CALLBACK QAudioOutputPrivate::waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
        DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 )
{
    Q_UNUSED(dwParam1)
    Q_UNUSED(dwParam2)
    Q_UNUSED(hWaveOut)

    QAudioOutputPrivate* qAudio;
    qAudio = (QAudioOutputPrivate*)(dwInstance);
    if(!qAudio)
        return;

    switch(uMsg) {
        case WOM_OPEN:
            qAudio->feedback();
            break;
        case WOM_CLOSE:
            return;
        case WOM_DONE:
            EnterCriticalSection(&waveOutCriticalSection);
            if(qAudio->finished || qAudio->buffer_size == 0 || qAudio->period_size == 0) {
                LeaveCriticalSection(&waveOutCriticalSection);
                return;
	    }
            qAudio->waveFreeBlockCount++;
            if(qAudio->waveFreeBlockCount >= qAudio->buffer_size/qAudio->period_size)
                qAudio->waveFreeBlockCount = qAudio->buffer_size/qAudio->period_size;
            qAudio->feedback();
            LeaveCriticalSection(&waveOutCriticalSection);
            break;
        default:
            return;
    }
}

Exemple #2

Fichier : qaudiooutput_win32_p.cpp Projet : BGmot/Qt

void CALLBACK QAudioOutputPrivate::waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
        DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 )
{
    Q_UNUSED(dwParam1)
    Q_UNUSED(dwParam2)
    Q_UNUSED(hWaveOut)

    QAudioOutputPrivate* qAudio;
    qAudio = (QAudioOutputPrivate*)(dwInstance);
    if(!qAudio)
        return;

    QMutexLocker(&qAudio->mutex);

    switch(uMsg) {
        case WOM_OPEN:
            qAudio->feedback();
            break;
        case WOM_CLOSE:
            return;
        case WOM_DONE:
            if(qAudio->finished || qAudio->buffer_size == 0 || qAudio->period_size == 0) {
                return;
	    }
            qAudio->waveFreeBlockCount++;
            if(qAudio->waveFreeBlockCount >= qAudio->buffer_size/qAudio->period_size)
                qAudio->waveFreeBlockCount = qAudio->buffer_size/qAudio->period_size;
            qAudio->feedback();
            break;
        default:
            return;
    }
}

Exemple #3

Fichier : qaudiooutput_alsa_p.cpp Projet : Nacto1/qt-everywhere-opensource-src-4.6.2

void QAudioOutputPrivate::async_callback(snd_async_handler_t *ahandler)
{
    QAudioOutputPrivate* audioOut;

    audioOut = static_cast<QAudioOutputPrivate*>
        (snd_async_handler_get_callback_private(ahandler));

    if((audioOut->deviceState==QAudio::ActiveState)||(audioOut->resuming))
        audioOut->feedback();
}