C++ (Cpp) QAbstractAudioInput示例

示例#1

QAbstractAudioInput* QAudioDeviceFactory::createInputDevice(QAudioDeviceInfo const& deviceInfo, QAudioFormat const &format)
{
    if (deviceInfo.isNull())
        return new QNullInputDevice();
#ifndef QT_NO_AUDIO_BACKEND
#if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA) || defined(Q_OS_SYMBIAN))
    if (deviceInfo.realm() == QLatin1String("builtin")) {
        QAbstractAudioInput* p = new QAudioInputPrivate(deviceInfo.handle());
        if (p) p->setFormat(format);
        return p;
    }
#endif
#endif
#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
    QAudioSystemFactoryInterface* plugin =
        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(deviceInfo.realm()));

    if (plugin) {
        QAbstractAudioInput* p = plugin->createInput(deviceInfo.handle());
        if (p) p->setFormat(format);
        return p;
    }
#endif

    return new QNullInputDevice();
}

示例#2

文件： qaudiodevicefactory.cpp 项目： SchleunigerAG/WinEC7_Qt5.3.1_Fixes

QAbstractAudioInput* QAudioDeviceFactory::createInputDevice(QAudioDeviceInfo const& deviceInfo, QAudioFormat const &format)
{
    if (deviceInfo.isNull())
        return new QNullInputDevice();

#if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
    QAudioSystemFactoryInterface* plugin =
        qobject_cast<QAudioSystemFactoryInterface*>(audioLoader()->instance(deviceInfo.realm()));

    if (plugin) {
        QAbstractAudioInput* p = plugin->createInput(deviceInfo.handle());
        if (p) p->setFormat(format);
        return p;
    }
#endif

    return new QNullInputDevice();
}