fileindextable.h
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上传日期:2007-06-06
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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 _FILEINDEXTABLE_H_
- #define _FILEINDEXTABLE_H_
- /****************************************************************************
- * Defines
- */
- #define FILEIDXTABLE_TIME_GRANULE 15000 // in milliseconds
- #define FILEIDXTABLE_MAX_ENTRIES 2048
- /****************************************************************************
- * Includes
- */
- #include "hxresult.h"
- /****************************************************************************
- *
- * Class:
- * CStreamIndexTable
- *
- * Purpose:
- * Manages mapping of stream index times and file offsets
- *
- */
- class CStreamIndexTable
- {
- public:
- /*
- * Constructor/Destructor
- */
- CStreamIndexTable(void);
- virtual ~CStreamIndexTable();
- /*
- * Main Interface
- */
- virtual HX_RESULT Init(UINT32 ulTimeGranularity = FILEIDXTABLE_TIME_GRANULE,
- UINT32 ulMaxEntries = FILEIDXTABLE_MAX_ENTRIES,
- BOOL bUseAuxData = FALSE);
- virtual HX_RESULT SetIndex(UINT32 ulTime,
- UINT32 ulOffset,
- void* pAuxData = NULL);
- virtual HX_RESULT GetIndex(UINT32& ulTime, // in & out
- UINT32& ulOffset, // out
- void** ppAuxData = NULL);// out
- virtual BOOL HasIndex(UINT32 ulTime);
- virtual void UpdateGranularity(UINT32 ulTimeGranularity);
- virtual void UpdateTimeRange(UINT32 ulTime);
- virtual void Close(void);
- private:
- typedef struct
- {
- UINT32 m_ulTime;
- UINT32 m_ulOffset;
- } IndexEntry;
- void _Close(void);
- IndexEntry* m_pIndexTable;
- void** m_pAuxDataTable;
- UINT32 m_ulMaxEntries;
- UINT32 m_ulTimeGranulairty;
- UINT32 m_ulNumEntries;
- UINT32 m_ulLastTime;
- UINT32 m_ulRangeTime;
- };
- /****************************************************************************
- *
- * Class:
- * CFileIndexTable
- *
- * Purpose:
- * Manages mapping of stream index times and file offsets
- *
- */
- class CFileIndexTable
- {
- public:
- /*
- * Constructor/Destructor
- */
- CFileIndexTable(void);
- virtual ~CFileIndexTable();
- /*
- * Main Interface
- */
- virtual HX_RESULT Init(UINT16 uNumStreams,
- UINT32 ulTimeGranularity = FILEIDXTABLE_TIME_GRANULE,
- UINT32 ulMaxEntries = FILEIDXTABLE_MAX_ENTRIES,
- BOOL bUseAuxData = FALSE);
- virtual HX_RESULT SetIndex(UINT16 uStreamNumber,
- UINT32 ulTime,
- UINT32 ulOffset,
- void* pAuxData = NULL);
- virtual HX_RESULT GetIndex(UINT16 uStreamNumber, // in
- UINT32& ulTime, // in & out
- UINT32& ulOffset, // out
- void** ppAuxData = NULL);// out
- virtual BOOL HasIndex(UINT16 uStreamNumber,
- UINT32 ulTime);
- virtual void UpdateGranularity(UINT32 ulTimeGranularity);
- virtual void UpdateTimeRange(UINT16 uStreamNumber,
- UINT32 ulTime);
- virtual void Close(void);
- private:
- void _Close(void);
- CStreamIndexTable* m_pStreamIndexTable;
- UINT16 m_uNumStreams;
- };
- #endif // _FILEINDEXTABLE_H_