concatpyld.h

来自「symbian 下的helix player源代码」· C头文件 代码 · 共 118 行

/* ***** 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 CONCATPYLD_H
#define CONCATPYLD_H

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

class HXConcatenatePayloadFormat : public IHXPayloadFormatObject
{
public:
    static HX_RESULT CreateInstance(REF(IHXPayloadFormatObject*) pPyld);

    /*
     *  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);

private:
    HXConcatenatePayloadFormat();
    ~HXConcatenatePayloadFormat();

    HX_RESULT CreateFinishedPkt();
    HX_RESULT AddToBufferList(IHXPacket* pPacket);
    void ClearBufferList();

    BOOL MatchesFirstPacket(IHXPacket* pPacket);

    void OnFirstPacket(IHXPacket* pPacket);

    ULONG32 m_lRefCount;
    IHXCommonClassFactory* m_pCCF;
    IHXValues* m_pHeader;

    IHXPacket* m_pFinishedPkt; /* Completed packet */

    BOOL m_bHaveFirstPkt;   /* Do we have the first packet for the group? */
    ULONG32 m_ulTimestamp;  /* Info from first packet in the group*/
    UINT16 m_uStream;
    UINT8 m_uASMFlags;
    UINT16 m_uASMRule;

    CHXSimpleList m_bufferList; /* List of packet buffers */
    UINT32 m_ulByteCount;       /* Number of bytes in the buffer list*/

    BOOL m_bPendingFlush;

    PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME
};
#endif /* CONCATPYLD_H */