XnStatus PlayerNode::OpenStream()
{
XN_VALIDATE_INPUT_PTR(m_pInputStream);
XnStatus nRetVal = m_pInputStream->Open(m_pStreamCookie);
XN_IS_STATUS_OK(nRetVal);
RecordingHeader header;
XnUInt32 nBytesRead = 0;
nRetVal = m_pInputStream->Read(m_pStreamCookie, &header, sizeof(header), &nBytesRead);
XN_IS_STATUS_OK(nRetVal);
if (nBytesRead < sizeof(header))
{
XN_LOG_ERROR_RETURN(XN_STATUS_CORRUPT_FILE, XN_MASK_OPEN_NI, "Not enough bytes read");
}
/* Check header */
if (xnOSMemCmp(header.headerMagic, DEFAULT_RECORDING_HEADER.headerMagic, sizeof(header.headerMagic)) != 0)
{
XN_LOG_ERROR_RETURN(XN_STATUS_CORRUPT_FILE, XN_MASK_OPEN_NI, "Invalid header magic");
}
if ((xnVersionCompare(&header.version, &OLDEST_SUPPORTED_FILE_FORMAT_VERSION) < 0) || //File format is too old
(xnVersionCompare(&header.version, &DEFAULT_RECORDING_HEADER.version) > 0)) //File format is too new
{
XN_LOG_ERROR_RETURN(XN_STATUS_UNSUPPORTED_VERSION, XN_MASK_OPEN_NI, "Unsupported file format version: %u.%u.%u.%u", header.version.nMajor, header.version.nMinor, header.version.nMaintenance, header.version.nBuild);
}
m_nGlobalMaxTimeStamp = header.nGlobalMaxTimeStamp;
m_nMaxNodes = header.nMaxNodeID + 1;
XN_ASSERT(m_nMaxNodes > 0);
XN_DELETE_ARR(m_pNodeInfoMap);
xnOSFree(m_aSeekTempArray);
m_pNodeInfoMap = XN_NEW_ARR(PlayerNodeInfo, m_nMaxNodes);
XN_VALIDATE_ALLOC_PTR(m_pNodeInfoMap);
XN_VALIDATE_CALLOC(m_aSeekTempArray, DataIndexEntry*, m_nMaxNodes);
m_bOpen = TRUE;
nRetVal = ProcessUntilFirstData();
if (nRetVal != XN_STATUS_OK)
{
XN_DELETE_ARR(m_pNodeInfoMap);
m_pNodeInfoMap = NULL;
xnOSFree(m_aSeekTempArray);
m_aSeekTempArray = NULL;
return nRetVal;
}
return XN_STATUS_OK;
}
XnBool XnSensorDepthGenerator::IsSensorImageNode(xn::ProductionNode& OtherNode)
{
xn::NodeInfo info = OtherNode.GetInfo();
XnVersion Version;
Version.nMajor = XN_PS_MAJOR_VERSION;
Version.nMinor = XN_PS_MINOR_VERSION;
Version.nMaintenance = XN_PS_MAINTENANCE_VERSION;
Version.nBuild = XN_PS_BUILD_VERSION;
// check if this view point is image from this DLL
if (info.GetDescription().Type != XN_NODE_TYPE_IMAGE ||
strcmp(info.GetDescription().strName, XN_DEVICE_NAME) != 0 ||
strcmp(info.GetDescription().strVendor, XN_VENDOR_PRIMESENSE) != 0 ||
xnVersionCompare(&info.GetDescription().Version, &Version) != 0)
{
return FALSE;
}
// check if it uses the same device
xn::NodeInfoList needed = info.GetNeededNodes();
for (xn::NodeInfoList::Iterator it = needed.Begin(); it != needed.End(); ++it)
{
if ((*it).GetDescription().Type == XN_NODE_TYPE_DEVICE &&
strcmp((*it).GetCreationInfo(), m_device.GetInfo().GetCreationInfo()) == 0)
{
return TRUE;
}
}
return FALSE;
}
static XnBool xnIsInfoQueryMatch(const XnNodeQuery* pQuery, XnNodeInfo* pNodeInfo)
{
const XnProductionNodeDescription* pDescription = xnNodeInfoGetDescription(pNodeInfo);
// vendor
if (pQuery->strVendor[0] != '\0' && strcmp(pQuery->strVendor, pDescription->strVendor) != 0)
{
return (FALSE);
}
// name
if (pQuery->strName[0] != '\0' && strcmp(pQuery->strName, pDescription->strName) != 0)
{
return (FALSE);
}
// min version
if (xnVersionCompare(&pQuery->MinVersion, &pDescription->Version) > 0)
{
return (FALSE);
}
// max version
if (xnVersionCompare(&pQuery->MaxVersion, &pDescription->Version) < 0)
{
return (FALSE);
}
// check needed nodes
for (XnUInt i = 0; i < pQuery->nNeededNodes; ++i)
{
if (!xnIsInstanceInTree(pNodeInfo, pQuery->astrNeededNodes[i]))
{
return (FALSE);
}
}
// Creation info
if (pQuery->strCreationInfo[0] != '\0' && strcmp(pQuery->strCreationInfo, xnNodeInfoGetCreationInfo(pNodeInfo)) != 0)
{
return (FALSE);
}
return (TRUE);
}
