smppkfdr.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 _SMPPKFDR_H_
#define _SMPPKFDR_H_

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


class CStreamParam;
class CInterleaveBufs;
class CHXSimpleList;


/****************************************************************************
 *  CRealAudioSimplePacketFeeder
 */
class CRealAudioSimplePacketFeeder : public CRealAudioPacketFeeder
{
public:
    /*
     *	Constructor/Destructor
     */
    CRealAudioSimplePacketFeeder(CStreamParam& refStreamParam,
				 CInterleaveBufs& refIBufs,
				 UINT16* pRuleToFlagMap,
				 UINT16 uStreamNumber);
    ~CRealAudioSimplePacketFeeder();

    /*
     *	CRealAudioPacketFeeder Interface
     */
    virtual HX_RESULT	OnPacket(IHXPacket* pPacket, 
				 LONG32 lTimeOffset, 
				 UINT16* rule_to_flag_map);
    virtual void	LossOccured(void);
    virtual BOOL	FillISuperBlock(void);
    virtual void	Reset(void);
    virtual void	OnEndOfPackets(void);

    virtual BOOL	IsActive(void);

    virtual HX_RESULT   SetupForNextTimeRange(void);

    virtual UINT32	GetCurrentTimeRangeEnd(void);
    virtual BOOL	IsCurrentTimeRangeEmpty(void);
    virtual BOOL	IsCurrentTimeRangeEnded(void);

    virtual BOOL	SetCrossFadeEndTime(UINT32 ulTimestamp);
    virtual BOOL	DiscardTillEndOfCrossFade(UINT32 ulTimestamp,
						  BOOL bHandled);

protected:
    void _Reset(void);
    BOOL Discard(UINT32 ulTimestamp, BOOL bBefore);

    inline UINT16 GetInterleaveFactor() 
    { 
	return m_StreamParam.uInterleaveFactor;
    }

    inline UINT32 GetSuperBlockTime() 
    { 
	return m_IBufs.GetSuperBlockTime();
    }

    inline double GetMSPerBlock()
    {
	return m_IBufs.GetMSPerBlock();
    }

    CInterleaveBufs& m_IBufs;

    CHXSimpleList* m_pPendingPacketQueue;

    CStreamParam& m_StreamParam;
    UINT16* m_pRuleToFlagMap;

    BOOL m_bEndOfPackets;
    
    UINT32 m_ulContinueDiscardUntilTime;
    UINT32 m_ulLastPacketTime;
    UINT32 m_ulSequence;
    UINT32 m_ulLastIBufOnPacketEndTime;
    UINT32 m_uStreamNumber;
};

#endif	// _SMPPKFDR_H_