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/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
/// @file
/// Contains the declaration of Stream class that implements a stream from
/// a virtual OpenNI device.
#ifndef __PLAYER_STREAM_H__
#define __PLAYER_STREAM_H__
#include "Driver/OniDriverAPI.h"
#include "PlayerProperties.h"
#include "PlayerSource.h"
#include "XnOSCpp.h"
namespace oni_file {
class Decoder;
/// Implements a stream from a virtual OpenNI device.
class PlayerStream : public oni::driver::StreamBase
{
public:
// General stream event.
typedef struct
{
PlayerStream* pStream;
} StreamEventArgs;
typedef xnl::Event<StreamEventArgs> StreamEvent;
typedef void (ONI_CALLBACK_TYPE* StreamCallback)(const StreamEventArgs& streamEventArgs, void* pCookie);
// Ready for data event.
typedef StreamEventArgs ReadyForDataEventArgs;
typedef StreamEvent ReadyForDataEvent;
typedef StreamCallback ReadyForDataCallback;
// Destroy event.
typedef StreamEventArgs DestroyEventArgs;
typedef StreamEvent DestroyEvent;
typedef StreamCallback DestroyCallback;
public:
/// Constructor.
PlayerStream(PlayerSource* pSource);
/// Destructor.
virtual ~PlayerStream();
/// Initialize the stream object.
OniStatus Initialize();
virtual int getRequiredFrameSize();
/// @copydoc OniStreamBase::start()
virtual OniStatus start();
/// has start() been called on this stream already?
bool isStreamStarted() { return m_isStarted; }
/// @copydoc OniStreamBase::stop()
virtual void stop();
// Return the player source the stream was created on.
PlayerSource* GetSource();
/// @copydoc OniStreamBase::getProperty(int,void*,int*)
virtual OniStatus getProperty(int propertyId, void* pData, int* pDataSize);
/// @copydoc OniStreamBase::setProperty(int,void*,int*)
virtual OniStatus setProperty(int propertyId, const void* pData, int dataSize);
// Register for 'ready for data' event.
OniStatus RegisterReadyForDataEvent(ReadyForDataCallback callback, void* pCookie, OniCallbackHandle& handle);
// Unregister from 'ready for data' event.
void UnregisterReadyForDataEvent(OniCallbackHandle handle);
// Register for 'destroy' event.
OniStatus RegisterDestroyEvent(DestroyCallback callback, void* pCookie, OniCallbackHandle& handle);
// Unregister from 'destroy' event.
void UnregisterDestroyEvent(OniCallbackHandle handle);
private:
void destroy();
void MainLoop();
static XN_THREAD_PROC ThreadProc(XN_THREAD_PARAM pThreadParam);
// Callback to be called when new data is available.
static void ONI_CALLBACK_TYPE OnNewDataCallback(const PlayerSource::NewDataEventArgs& newDataEventArgs, void* pCookie);
// Data members
private:
// Source the stream was created on.
PlayerSource* m_pSource;
// Stream properties.
PlayerProperties m_properties;
// Handle to new data callback.
OniCallbackHandle m_newDataHandle;
// Ready for data event.
ReadyForDataEvent m_readyForDataEvent;
// Destroy event.
DestroyEvent m_destroyEvent;
// Critical section.
xnl::CriticalSection m_cs;
// Are we streaming right now?
bool m_isStarted;
int m_requiredFrameSize;
};
} // namespace oni_files_player
#endif //__PLAYER_STREAM_H__
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