Method SetNodeNewData

Source/OpenNI/XnPlayerImpl.cpp:648–718

}

XnStatus PlayerImpl::SetNodeNewData(const XnChar* strNodeName, XnUInt64 nTimeStamp, XnUInt32 nFrame, const void* pData, XnUInt32 nSize)
{
	XnStatus nRetVal = XN_STATUS_OK;

	XnUInt64 nNow;
	xnOSGetHighResTimeStamp(&nNow);

	if (!m_bHasTimeReference)
	{
		m_nStartTimestamp = nTimeStamp;
		m_nStartTime = nNow;

		m_bHasTimeReference = TRUE;
	}
	else if (m_dPlaybackSpeed != XN_PLAYBACK_SPEED_FASTEST)
	{
		// check this data timestamp compared to when we started
		XnInt64 nTimestampDiff = nTimeStamp - m_nStartTimestamp;
		
		// in some recordings, frames are not ordered by timestamp. Make sure this does not break the mechanism
		if (nTimestampDiff > 0)
		{
			XnInt64 nTimeDiff = nNow - m_nStartTime;

			// check if we need to wait some time
			XnInt64 nRequestedTimeDiff = (XnInt64)(nTimestampDiff / m_dPlaybackSpeed);
			if (nTimeDiff < nRequestedTimeDiff)
			{
				XnUInt32 nSleep = XnUInt32((nRequestedTimeDiff - nTimeDiff)/1000);
				nSleep = XN_MIN(nSleep, XN_PLAYBACK_SPEED_SANITY_SLEEP);
				xnOSSleep(nSleep);
			}

			// update reference to current frame (this will handle cases in which application
			// stopped reading frames and continued after a while)
			m_nStartTimestamp = nTimeStamp;
			xnOSGetHighResTimeStamp(&m_nStartTime);
		}
	}

	PlayedNodeInfo playedNode;
	nRetVal = m_playedNodes.Get(strNodeName, playedNode);
	XN_IS_STATUS_OK(nRetVal);

	nRetVal = xnLockedNodeStartChanges(playedNode.hNode, playedNode.hLock);
	XN_IS_STATUS_OK(nRetVal);

	nRetVal = xnSetIntProperty(playedNode.hNode, XN_PROP_TIMESTAMP, nTimeStamp);
	if (nRetVal != XN_STATUS_OK)
	{
		xnLockedNodeEndChanges(playedNode.hNode, playedNode.hLock);
		return (nRetVal);
	}
	nRetVal = xnSetIntProperty(playedNode.hNode, XN_PROP_FRAME_ID, nFrame);
	if (nRetVal != XN_STATUS_OK)
	{
		xnLockedNodeEndChanges(playedNode.hNode, playedNode.hLock);
		return (nRetVal);