h263pyld.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#ifndef RFC2190PYLD_H
#define RFC2190PYLD_H

#include "hxcom.h"
#include "hxformt.h"
#include "hxccf.h"
#include "hxslist.h"
#include "hxwintyp.h"

class CH263Helper;

class CH263PayloadFormat : public IHXPayloadFormatObject
{
public:
    CH263PayloadFormat();
    ~CH263PayloadFormat();

    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)		(THIS_
					REFIID riid,
					void** ppvObj);

    STDMETHOD_(ULONG32,AddRef)		(THIS);

    STDMETHOD_(ULONG32,Release)		(THIS);

    /*
     *	IHXPayloadFormatObject methods
     */
    STDMETHOD(Init)		(THIS_
				IUnknown* pContext,
				BOOL bPacketize);

    STDMETHOD(Close)		(THIS);

    STDMETHOD(Reset)		(THIS);

    STDMETHOD(SetStreamHeader)	(THIS_
				IHXValues* pHeader);

    STDMETHOD(GetStreamHeader)	(THIS_
				REF(IHXValues*) pHeader);

    STDMETHOD(SetPacket)	(THIS_
				IHXPacket* pPacket);

    STDMETHOD(GetPacket)	(THIS_
				REF(IHXPacket*) pPacket);

    STDMETHOD(Flush)		(THIS);

    static HX_RESULT GetFrameDimensions(IHXBuffer* pBuffer, 
					HXxSize &FrameDim);
protected:

    HX_RESULT ProcessPackets();
    HX_RESULT AddPacket(ULONG32 ulDataSize, IHXPacket* pPacket);
    void FlushInput();
    void FlushOutput();

    HX_RESULT CreateHelper(const UINT8* pBuf, ULONG32 ulBufSize);

private:
    enum DepackState {NeedPSC, 
		      GotPSC,
		      GotFrame};
    
    LONG32 m_lRefCount;
    IHXCommonClassFactory* m_pCCF;
    DepackState m_state;
    ULONG32 m_ulFrameSize;
    ULONG32 m_ulTimestamp;
    CHXSimpleList m_inputQueue;
    CHXSimpleList m_outputQueue;
    CH263Helper* m_pDepackHlpr;
};

#endif /* RFC2190PYLD_H */