mpapktparse.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 _MPAPKTPARSE_H_
- #define _MPAPKTPARSE_H_
- class CHXTimestampConverter;
- /*
- * CMpaPacketParser: Basic, unformatted MPEG Audio streams
- */
- class CMpaPacketParser : public CPacketParser
- {
- public:
- CMpaPacketParser();
- virtual ~CMpaPacketParser();
- /*
- * CPacketParser methods
- */
- HX_RESULT AddPacket (IHXPacket* pPacket, INT32 streamOffsetTime);
- HX_RESULT RenderAll (void);
- void RestartStream (void);
- protected:
- virtual inline BOOL ParseHeaders(UCHAR*& pBuffer, UINT32& ulSize)
- {
- return TRUE;
- }
- virtual void HandlePacketLoss() {};
- IHXPacket* m_pPacket;
- BOOL m_bPacketLoss;
- INT32 m_lStreamOffsetTime;
- };
- /*
- * C2250PacketParser: RFC 2250 streams (audio or system)
- */
- class C2250PacketParser : public CMpaPacketParser
- {
- public:
- C2250PacketParser() : CMpaPacketParser() {m_pTsConvert=NULL;}
- virtual ~C2250PacketParser();
- void PostSeek(UINT32 time);
- protected:
- BOOL ParseHeaders(UCHAR*& pBuffer, UINT32& ulSize);
- void HandlePacketLoss();
- CHXTimestampConverter* m_pTsConvert;
- };
- #ifdef DEMUXER
- /*
- * CSysPacketParser: System streams
- */
- class CSysPacketParser : public CMpaPacketParser
- {
- public:
- CSysPacketParser(BOOL bMPEG2, IHXRegistry* pRegistry);
- virtual ~CSysPacketParser() {}
- inline void PostSeek(UINT32 timeAfterSeek)
- {
- CMpaPacketParser::PostSeek(timeAfterSeek);
- m_ulPlayTime = timeAfterSeek;
- m_llLastPts = 0;
- }
- protected:
- virtual inline BOOL ParseHeaders(UCHAR*& pBuffer, UINT32& ulSize)
- {
- return Demux(pBuffer, ulSize, m_ulDecBufBytes);
- }
- BOOL Demux(UCHAR*& pBuffer, UINT32& ulSize, UINT32 ulFragSize);
- CDemuxer* m_pDemuxer;
- IHXRegistry* m_pRegistry;
- INT64 m_llLastPts;
- INT64 m_llFirstPts;
- UINT32 m_ulPlayTime;
- BOOL m_bCheckVcdBug; // Check once for vcd pts bug
- BOOL m_bVcdBug; // Encoded pts refer to first
- // byte in packet.
- };
- class C2250SysPacketParser : public C2250PacketParser,
- public CSysPacketParser
- {
- public:
- C2250SysPacketParser(BOOL bMPEG2, IHXRegistry* pRegistry) :
- CSysPacketParser(bMPEG2, pRegistry), C2250PacketParser() {}
-
- ~C2250SysPacketParser() {}
- protected:
- virtual inline BOOL ParseHeaders(UCHAR*& pBuffer, UINT32& ulSize)
- {
- return C2250PacketParser::ParseHeaders(pBuffer, ulSize) ?
- CSysPacketParser::ParseHeaders(pBuffer, ulSize) :
- FALSE;
- }
- };
- #endif // DEMUXER
- #endif //_MPAPKTPARSE_H_