rvxpyld.h

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/* ***** 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 _RVXPYLD_H_
#define _RVXPYLD_H_

/****************************************************************************
 *  Includes
 */
#include "hxalloc.h"

class IHXUnknown;
class CHXBufferMemoryAllocator;
class CRVXHeader;
class CRVUnPack;

/****************************************************************************
 *  RVXPayloadFormat
 */
class RVXPayloadFormat : public IHXPayloadFormatObject
{
  public:
    RVXPayloadFormat(IHX20MemoryAllocator* pOutputAllocator);
    ~RVXPayloadFormat();

    // *** 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);
    
    /*
     *  Custom public interface methods
     */
    HX_RESULT CreateHXCodecPacket(HXCODEC_DATA* &pHXCodecDataOut);
    void DisposeHXCodecPacket(HXCODEC_DATA* pHXCodecData);

    ULONG32 GetBitstreamHeaderSize(void) { return m_ulBitStrmHeaderSize; }
    const HX_MOF* GetBitstreamHeader(void) { return ((HX_MOF*) m_pBitStrmHeader); }

  private:
    void _Close(void);

    inline HX_RESULT SetAssemblerHeader(IHXValues* pHeader);
    inline HX_RESULT GetAssemblerPacket(IHXPacket* &pOutPacket);
    inline HX_RESULT SetAssemblerPacket(IHXPacket* pPacket);

    HX_RESULT ResetPacketAssembler(void);

    LONG32                 m_lRefCount;
    IUnknown*              m_pContext;
    IHXCommonClassFactory* m_pClassFactory;

    IHX20MemoryAllocator*     m_pOutputAllocator;
    CHXBufferMemoryAllocator* m_pPacketAllocator;

    CRVXHeader*     m_pRVHeader;
    IHXValues*      m_pStreamHeader;
    ULONG32*        m_pBitStrmHeader;
    ULONG32         m_ulBitStrmHeaderSize;

    CRVUnPack*      m_pAssembler;
    UINT16          m_uSeqNumber;

    BOOL            m_bFlushed;
    BOOL            m_bPacketize;
    BOOL            m_bHasRelativeTS;
    ULONG32	    m_ulZeroTimeOffset;
};

#endif  // _RVXPYLD_H_