XnStatus XnSensorAudioStream::SetNumberOfChannels(XnUInt32 nNumberOfChannels)
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = m_Helper.BeforeSettingFirmwareParam(NumberOfChannelsProperty(), nNumberOfChannels);
XN_IS_STATUS_OK(nRetVal);
nRetVal = XnAudioStream::SetNumberOfChannels(nNumberOfChannels);
XN_IS_STATUS_OK(nRetVal);
nRetVal = ReallocBuffer();
XN_IS_STATUS_OK(nRetVal);
nRetVal = m_Helper.AfterSettingFirmwareParam(NumberOfChannelsProperty());
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XnSensorAudioStream::MapPropertiesToFirmware()
{
XnStatus nRetVal = XN_STATUS_OK;
XN_IS_STATUS_OK(m_Helper.MapFirmwareProperty(SampleRateProperty(), GetFirmwareParams()->m_AudioSampleRate, FALSE, ConvertSampleRateToFirmwareRate));
XN_IS_STATUS_OK(m_Helper.MapFirmwareProperty(NumberOfChannelsProperty(), GetFirmwareParams()->m_AudioStereo, FALSE, ConvertNumberOfChannelsToStereo));
XN_IS_STATUS_OK(m_Helper.MapFirmwareProperty(m_LeftChannelVolume, GetFirmwareParams()->m_AudioLeftChannelGain, TRUE));
XN_IS_STATUS_OK(m_Helper.MapFirmwareProperty(m_RightChannelVolume, GetFirmwareParams()->m_AudioRightChannelGain, TRUE));
return (XN_STATUS_OK);
}
XnStatus XnSensorAudioStream::ConfigureStreamImpl()
{
XnStatus nRetVal = XN_STATUS_OK;
xnUSBShutdownReadThread(GetHelper()->GetPrivateData()->pSpecificMiscUsb->pUsbConnection->UsbEp);
nRetVal = SetActualRead(TRUE);
XN_IS_STATUS_OK(nRetVal);
XN_IS_STATUS_OK(m_Helper.ConfigureFirmware(SampleRateProperty()));
XN_IS_STATUS_OK(m_Helper.ConfigureFirmware(NumberOfChannelsProperty()));
XN_IS_STATUS_OK(m_Helper.ConfigureFirmware(m_LeftChannelVolume));
XN_IS_STATUS_OK(m_Helper.ConfigureFirmware(m_RightChannelVolume));
return (XN_STATUS_OK);
}
XnStatus XnSensorAudioStream::Init()
{
XnStatus nRetVal = XN_STATUS_OK;
// init base
nRetVal = XnAudioStream::Init();
XN_IS_STATUS_OK(nRetVal);
// init helper
nRetVal = m_Helper.Init(this, this);
XN_IS_STATUS_OK(nRetVal);
nRetVal = xnOSCreateCriticalSection(&m_buffer.hLock);
XN_IS_STATUS_OK(nRetVal);
nRetVal = SetReadChunkSize(XN_AUDIO_STREAM_DEFAULT_CHUNK_SIZE);
XN_IS_STATUS_OK(nRetVal);
// add properties
XN_VALIDATE_ADD_PROPERTIES(this, &m_LeftChannelVolume, &m_RightChannelVolume, &m_ActualRead);
// check what's the firmware audio packet size
if (m_Helper.GetPrivateData()->SensorHandle.MiscConnection.bIsISO)
m_nOrigAudioPacketSize = XN_SENSOR_PROTOCOL_AUDIO_PACKET_SIZE_ISO;
else
m_nOrigAudioPacketSize = XN_SENSOR_PROTOCOL_AUDIO_PACKET_SIZE_BULK;
// alloc buffer
nRetVal = ReallocBuffer();
XN_IS_STATUS_OK(nRetVal);
m_buffer.pAudioCallback = NewDataCallback;
m_buffer.pAudioCallbackCookie = this;
// data processor
nRetVal = m_Helper.RegisterDataProcessorProperty(NumberOfChannelsProperty());
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
