XnStatus XnFileDevice::ReadNewStream()
{
XnStatus nRetVal = XN_STATUS_OK;
XnChar strType[XN_DEVICE_MAX_STRING_LENGTH];
XnChar strName[XN_DEVICE_MAX_STRING_LENGTH];
// create property set
XnPropertySet* pPropertySet = NULL;
nRetVal = XnPropertySetCreate(&pPropertySet);
XN_IS_STATUS_OK(nRetVal);
// read from stream
nRetVal = m_pDataPacker->ReadNewStream(strType, strName, pPropertySet);
if (nRetVal == XN_STATUS_OK)
{
// create it
nRetVal = HandleNewStream(strType, strName, pPropertySet->pData->Begin()->Value());
}
XnPropertySetDestroy(&pPropertySet);
return (nRetVal);
}
XnStatus XnStreamReaderDevice::InitImpl(const XnDeviceConfig* pDeviceConfig)
{
XnStatus nRetVal = XN_STATUS_OK;
// we will init the device using state from the stream, instead of the one from user.
// the one from user will be used to set properties afterwards.
// first open the stream
nRetVal = InitPacker(pDeviceConfig->cpConnectionString);
XN_IS_STATUS_OK(nRetVal);
// create a property set
XnPropertySet* pSet;
nRetVal = XnPropertySetCreate(&pSet);
XN_IS_STATUS_OK(nRetVal);
// read initial state (we assume first object in the stream is the initial state)
nRetVal = ReadInitialState(pSet);
if (nRetVal != XN_STATUS_OK)
{
XnPropertySetDestroy(&pSet);
return (nRetVal);
}
nRetVal = SetInitialState(pDeviceConfig, pSet);
if (nRetVal != XN_STATUS_OK)
{
XnPropertySetDestroy(&pSet);
return (nRetVal);
}
// destroy the property set (we don't need it anymore)
nRetVal = XnPropertySetDestroy(&pSet);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}