h263pyld.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: h263pyld.h,v 1.3.2.1 2004/07/09 01:56:36 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (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.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * 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 */