XnStatus XnFileDevice::CreateCodec(xn::ProductionNode& node)
{
XnStatus nRetVal = XN_STATUS_OK;
XnNodeInfo* pNodeInfo = NULL;
if (m_nodeInfoMap.Get(node.GetName(), pNodeInfo) == XN_STATUS_OK)
{
XnUInt64 nValue;
nRetVal = node.GetIntProperty(XN_STREAM_PROPERTY_COMPRESSION, nValue);
XN_IS_STATUS_OK(nRetVal);
// create new one
XnCodecID codecID = XnCodec::GetCodecIDFromCompressionFormat((XnCompressionFormats)nValue);
if (codecID == XN_CODEC_NULL)
{
XN_LOG_WARNING_RETURN(XN_STATUS_CORRUPT_FILE, XN_MASK_FILE, "Invalid compression type: %llu", nValue);
}
if (pNodeInfo->pXnCodec == NULL || pNodeInfo->pXnCodec->GetCompressionFormat() != nValue)
{
// release old codec
XN_DELETE(pNodeInfo->pXnCodec);
if (pNodeInfo->codec.IsValid())
{
xnRemoveNeededNode(GetSelfNodeHandle(), pNodeInfo->codec);
pNodeInfo->codec.Release();
}
// special case: IR recorded with JPEG. This mode is no longer allowed by OpenNI (JPEG
// can now only be used for image). We'll have to handle it ourselves.
if (node.GetInfo().GetDescription().Type == XN_NODE_TYPE_IR &&
codecID == XN_CODEC_JPEG)
{
xn::IRGenerator irGen(node);
XnMapOutputMode outputMode;
nRetVal = irGen.GetMapOutputMode(outputMode);
XN_IS_STATUS_OK(nRetVal);
XN_VALIDATE_NEW_AND_INIT(pNodeInfo->pXnCodec, XnJpegCodec, TRUE, outputMode.nXRes, outputMode.nYRes);
}
else
{
// normal case
nRetVal = m_context.CreateCodec(codecID, node, pNodeInfo->codec);
XN_IS_STATUS_OK(nRetVal);
// we need to make the codec a needed node, so that if xnForceShutdown() is called, we will be
// destroyed *before* it does (as we hold a reference to it).
nRetVal = xnAddNeededNode(GetSelfNodeHandle(), pNodeInfo->codec);
XN_IS_STATUS_OK(nRetVal);
XN_VALIDATE_NEW(pNodeInfo->pXnCodec, XnNiCodec, pNodeInfo->codec);
}
}
}
return (XN_STATUS_OK);
}
XnStatus PlayerImpl::AddNode(const XnChar* strNodeName, XnProductionNodeType type, XnCodecID compression)
{
XnStatus nRetVal = XN_STATUS_OK;
PlayedNodeInfo playedNodeInfo = {0};
if (m_playedNodes.Get(strNodeName, playedNodeInfo) == XN_STATUS_OK)
{
// already in the list, just return OK.
return (XN_STATUS_OK);
}
// check if we need to create it (maybe it's a rewind...)
if (xnGetRefNodeHandleByName(m_hPlayer->pContext, strNodeName, &playedNodeInfo.hNode) != XN_STATUS_OK)
{
XnStatus nRetVal = xnCreateMockNode(m_hPlayer->pContext, type, strNodeName, &playedNodeInfo.hNode);
XN_IS_STATUS_OK(nRetVal);
// mark this node as needed node. We need this in order to make sure if xnForceShutdown() is called,
// the player will be destroyed *before* mock node is (so we can release it).
nRetVal = xnAddNeededNode(m_hPlayer, playedNodeInfo.hNode);
if (nRetVal != XN_STATUS_OK)
{
xnProductionNodeRelease(playedNodeInfo.hNode);
return (nRetVal);
}
}
// lock it, so no one can change configuration (this is a file recording)
nRetVal = xnLockNodeForChanges(playedNodeInfo.hNode, &playedNodeInfo.hLock);
if (nRetVal != XN_STATUS_OK)
{
xnProductionNodeRelease(playedNodeInfo.hNode);
return (nRetVal);
}
nRetVal = m_playedNodes.Set(strNodeName, playedNodeInfo);
if (nRetVal != XN_STATUS_OK)
{
xnProductionNodeRelease(playedNodeInfo.hNode);
return (nRetVal);
}
return XN_STATUS_OK;
}
XnStatus PlayerNode::HandleNodeStateReadyRecord(NodeStateReadyRecord record)
{
XN_VALIDATE_INPUT_PTR(m_pNodeNotifications);
XnStatus nRetVal = record.Decode();
XN_IS_STATUS_OK(nRetVal);
DEBUG_LOG_RECORD(record, "NodeStateReady");
PlayerNodeInfo* pPlayerNodeInfo = GetPlayerNodeInfo(record.GetNodeID());
XN_VALIDATE_PTR(pPlayerNodeInfo, XN_STATUS_CORRUPT_FILE);
if (!pPlayerNodeInfo->bValid)
{
XN_ASSERT(FALSE);
return XN_STATUS_CORRUPT_FILE;
}
// after wrap-around, if node wasn't destroyed, no need to notify about state ready
if (!pPlayerNodeInfo->bStateReady)
{
nRetVal = m_pNodeNotifications->OnNodeStateReady(m_pNotificationsCookie, pPlayerNodeInfo->strName);
XN_IS_STATUS_OK(nRetVal);
}
if (pPlayerNodeInfo->bIsGenerator &&
(pPlayerNodeInfo->compression != XN_CODEC_NULL) &&
!pPlayerNodeInfo->codec.IsValid())
{
xn::ProductionNode node;
/*at this point the node should have all its properties set so we can create the codec. A node
with the name pPlayerNodeInfo->strName should have been created by now. If it wasn't,
GetProductionNodeByName() will fail. */
nRetVal = m_context.GetProductionNodeByName(pPlayerNodeInfo->strName, node);
XN_IS_STATUS_OK(nRetVal);
nRetVal = m_context.CreateCodec(pPlayerNodeInfo->compression, node, pPlayerNodeInfo->codec);
XN_IS_STATUS_OK(nRetVal);
// we need to make the codec a needed node, so that if xnForceShutdown() is called, we will be
// destroyed *before* it does (as we hold a reference to it).
nRetVal = xnAddNeededNode(GetSelfNodeHandle(), pPlayerNodeInfo->codec);
XN_IS_STATUS_OK(nRetVal);
}
pPlayerNodeInfo->bStateReady = TRUE;
return XN_STATUS_OK;
}
