XnStatus XnDeviceFileReader::HandleStreamData(XnStreamData* pDataProps, XnCompressionFormats nCompression, XnUInt32 nCompressedSize)
{
XnStatus nRetVal = XN_STATUS_OK;
XnUInt64 nPosition;
nRetVal = GetIOStream()->Tell(&nPosition);
XN_IS_STATUS_OK(nRetVal);
XnUIntHash::Iterator it = m_PositionsToIgnore.End();
if (XN_STATUS_OK == m_PositionsToIgnore.Find(nPosition, it))
{
// ignore this one. Just update the frame ID
XnStreamDeviceStreamHolder* pHolder;
nRetVal = FindStream(pDataProps->StreamName, &pHolder);
XN_IS_STATUS_OK(nRetVal);
XnStreamReaderStream* pStream = (XnStreamReaderStream*)pHolder->GetStream();
pStream->NewDataAvailable(pDataProps->nTimestamp, pDataProps->nFrameID);
// and remove it from list
nRetVal = m_PositionsToIgnore.Remove(it);
XN_IS_STATUS_OK(nRetVal);
}
else
{
// normal case. handle it
nRetVal = XnStreamReaderDevice::HandleStreamData(pDataProps, nCompression, nCompressedSize);
XN_IS_STATUS_OK(nRetVal);
}
return (XN_STATUS_OK);
}
XnStatus XnStreamReaderDevice::HandleStreamData(XnStreamData* pDataProps, XnCompressionFormats nCompression, XnUInt32 nCompressedSize)
{
XnStatus nRetVal = XN_STATUS_OK;
// find the stream
XnStreamDeviceStreamHolder* pStreamHolder;
nRetVal = FindStream(pDataProps->StreamName, &pStreamHolder);
XN_IS_STATUS_OK(nRetVal);
XnStreamReaderStream* pStream = (XnStreamReaderStream*)pStreamHolder->GetStream();
XnStreamData* pStreamData = pStream->GetStreamData();
// check size
nRetVal = XnStreamDataCheckSize(pStreamData, pStream->GetRequiredDataSize());
XN_IS_STATUS_OK(nRetVal);
nRetVal = GetDataPacker()->ReadStreamData(pStreamData, pStreamHolder->GetCodec());
XN_IS_STATUS_OK(nRetVal);
pStream->NewDataAvailable(pStreamData->nTimestamp, pStreamData->nFrameID);
return (XN_STATUS_OK);
}