raibufs.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 _RAIBUFS_H_
#define _RAIBUFS_H_

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


/****************************************************************************
 *  CInterleaveBufs
 */
class CInterleaveBufs
{
public:
    CInterleaveBufs(CStreamParam &param, UINT16 uStreamNumber = 0);
    ~CInterleaveBufs();
    
    HX_RESULT   InitDeinterleaver(void);	    
    HX_RESULT   AllocIBufs(void);
    void	    DeallocIBufs(void);
    
    HX_RESULT   OnPacket(Byte* pData, 
			     UINT32 ulSize, 
			     UINT32 ulSequence, 
			     UINT32 ulTimestamp, 
			     BOOL bLost,
			     UINT16 usFlags);
    
    HX_RESULT   OnSeek(void);
    HX_RESULT   DeInterleaveData(void);
    HX_RESULT   GetBlock (Byte** hData, UINT32* pDataSize, UINT32* pDataFlags, UINT32* pTimestamp,UINT32* ulActualTimestamp);
    HX_RESULT   NextBlock(void);
    
    void	    OnEndofPackets(void);   
    void	    SwitchOff(void);
    void	    NumDecodedBytes(UINT32 ulNumDecodedBytes);
    void	    NumDecodedBytes(UINT32 ulEndingTS, UINT32 ulNumDecodedBytes);
    
    BOOL	    DataAvailable(AUDIO_STATE audioState);
    BOOL	    IsISuperBlockFilled(void);
    
    BOOL	    IsDSuperBlockEmpty(void);
    BOOL	    IsStreamDone(void);
    
    inline	    BOOL IsISuperBlockEmpty(void)
    { 
	return m_bISuperBlockEmpty;
    }
    
    inline	    BOOL IsISuperBlockDone(void)
    { 
	return m_bISuperBlockDone;
    }
    
    inline	    void FlushIBlock()
    {
	m_bISuperBlockEmpty = TRUE;
	m_bISuperBlockDone = FALSE;
	m_uNumIBlocks	= 0;
	m_bFirstPacketReceived = FALSE;
    }
    
    inline	    void FlushDBlock()
    { 
	m_bDSuperBlockEmpty = TRUE; 
	if (m_bISuperBlockEmpty)
	{
	    m_bFirstPacketReceived = FALSE;
	}
    }
    
    inline	    void SetTimeStampsInTenths(BOOL bTimeStampsInTenths)
    { 
	m_bTimeStampsInTenths = bTimeStampsInTenths; 
    }

    inline	    void SetSamplesIn(UINT32 ulSamplesIn)
    { 
	m_ulSamplesIn = ulSamplesIn; 
    }

    inline void SetReliableSamplesIn(BOOL bFlag)
    {
        m_bReliableSamplesIn = TRUE;
    }

    inline	    INT32 RateInBytesPerSec(void) 
    { 			
	if (m_fmsPerBlock) return (INT32) (1000/m_fmsPerBlock);
	return 0;
    };
    
    inline	    double GetMSPerBlock()
    { 
	return m_fmsPerBlock;
    }
    
    inline	    UINT32 GetSuperBlockTime()
    { 
	return (UINT32)(m_fmsPerBlock * m_Param.uInterleaveFactor);
    }
    
    double	    CalcMs(UINT32 ulNumBytes);
    
    UINT32	    CalcBytes(double fMs);
    
    
    CTimeRange   m_IBlockTimeRange;
    CTimeRange   m_DBlockTimeRange;
    
private:
    
    CStreamParam&	m_Param;
    CInterleave*	m_Interleaver;
    
    UINT16		m_uStreamNumber;    // Debug use
    
    UINT32		m_ulSuperBlockSize;
    double		m_fmsPerBlock;
    UINT32		m_ulSamplesIn;
    UINT32		m_ulLastDecodedTime;
    
    Byte*		m_pIDataBuf;	    // Interleaved Data
    Byte*		m_pDDataBuf;	    // De-interleaved Data
    UINT32*		m_pIPresent;	    // Interleaved Flags (data not lost)
    UINT32*		m_pDPresent;
    
    double*		m_pIActualTimestamps; // Interleaved Timestamps
    double*		m_pDActualTimestamps;
    
    UINT16		m_uBlockToDecode;
    UINT16		m_uNumIBlocks;
    UINT32		m_ulFirstSequenceNum;
    UINT32              m_ulVBRSMaxBufSize;
    UINT32              m_ulVBRSDBufBytes;
    double		m_fCurrentTimestamp;
    double		m_fActualTimestamp;
    double		m_fCurrentDeinterleaveTimestamp;
    double		m_fMsPerByte;
    double		m_fLastDecodedTime;
    BOOL		m_bLastDecodedTimeSet;
    BOOL                m_bDeinterleaveInPlace;
    BOOL                m_bReliableSamplesIn;
    BOOL                m_bIsVBRS;
    
    HX_BITFIELD	m_bISuperBlockDone:1;	// ready to de-interleave
    // Flags & Params for Interleaved Data
    HX_BITFIELD	m_bISuperBlockEmpty:1;
    HX_BITFIELD	m_bFirstPacketReceived:1;
    // Flags & Params for De-interleaved Data
    HX_BITFIELD	m_bDSuperBlockEmpty:1;
    HX_BITFIELD	m_bEndOfPackets:1;
    
    HX_BITFIELD	m_bTimeStampsInTenths:1;
};

#define INITIAL_VBR_MAXBUFSIZE 8192 // Max AAC frame size is 8191

#endif // ndef _RAIBUFS_H_