Method AudioHardwareDeviceNode

src/core/AudioHardwareDeviceNode.cpp:34–78

}

AudioHardwareDeviceNode::AudioHardwareDeviceNode(AudioContext & context,
                                                 const AudioStreamConfig & outputConfig,
                                                 const AudioStreamConfig & inputConfig)
    : AudioNode(context, *desc())
    , m_context(&context)
    , outConfig(outputConfig)
    , inConfig(inputConfig)
{
    // Ensure that input and output sample rates match
    if (inputConfig.device_index != -1 && outputConfig.device_index != -1)
    {
        ASSERT(outputConfig.desired_samplerate == inputConfig.desired_samplerate);
    }

    m_platformAudioDevice = std::unique_ptr<AudioDevice>(AudioDevice::MakePlatformSpecificDevice(*this, outputConfig, inputConfig));

    LOG_INFO("MakePlatformSpecificDevice() \n"
             "\t* Sample Rate:     %f \n"
             "\t* Input Channels:  %i \n"
             "\t* Output Channels: %i   ",
        outputConfig.desired_samplerate, inputConfig.desired_channels, outputConfig.desired_channels);

    if (inputConfig.device_index != -1)
    {
        m_audioHardwareInput = new AudioHardwareInput(inputConfig.desired_channels);
    }

    // This is the "final node" in the chain. It will pull on all others from this input.
    addInput(std::make_unique<AudioNodeInput>(this));

    // Node-specific default mixing rules.
    //m_channelCount = outputConfig.desired_channels;
    m_channelCountMode = ChannelCountMode::Explicit;
    m_channelInterpretation = ChannelInterpretation::Speakers;

    ContextGraphLock glock(&context, "AudioHardwareDeviceNode");
    AudioNode::setChannelCount(glock, outputConfig.desired_channels);

    // Info is provided by the backend every frame, but some nodes need to be constructed
    // with a valid sample rate before the first frame so we make our best guess here
    last_info = {};
    last_info.sampling_rate = outputConfig.desired_samplerate;

    initialize();
}

AudioHardwareDeviceNode::~AudioHardwareDeviceNode()
{