m2t.h

这是一个SIGMA方案的PMP播放器的UCLINUX程序,可播放DVD,VCD,CD MP3...有很好的参考价值.

#ifndef _M2T_H
#define _M2T_H

#include "basic.h"

#define	MAX_PROGRAMS	0xffff

typedef struct tagPATVal
{
	WORD	program_number;
	WORD	program_map_PID;
} PATVal;

typedef void (*M2TCallback)(BYTE *pData, DWORD Length, WORD PID, BYTE Flags, QWORD TransportOffset, void *Context);
typedef BOOL (*M2TPMTCallback)(WORD wPID, WORD wType, void *Context);
typedef WORD (*M2TPATCallback)(WORD wPID, WORD wProgramNumber, void *Context);
typedef void (*M2TPMSCallback)(WORD wPMSPID, WORD wPID, WORD wType, void *Context);

#ifdef CARIBBEAN
class M2TDemux: public RMdemuxBase
#else
class M2TDemux
#endif // CARIBBEAN
{
	int	m_State;
	int	m_SubState;	
	int	m_ProgramAssociationTableState;
	int	m_ConditionalAccessTableState;
	int	m_ProgramMapTableState;
	int	m_NetworkInformationTableState;

	int	m_TransportPacketCounter;
	int	m_BytesLeftInTransportPacket;
	int	m_SkipCount;
	int	m_AdaptationFieldLength;

	BYTE	m_TransportErrorIndicator;
	BYTE	m_PayloadUnitStartIndicator;
	BYTE	m_TransportPriority;
	WORD	m_PID;
	BYTE	m_TransportScramblingControl;
	BYTE	m_AdaptionFieldControl;
	BYTE	m_ContinuityCounter;

	WORD	m_PMTPID;	// program map table pid
	WORD	m_NITPID;	// network information table pid

	BYTE	m_PAS_Pointer;
	BYTE	m_PAS_TableId;
	BYTE	m_PAS_SectionSyntaxIndicator;
	WORD	m_PAS_SectionLength;
	WORD	m_PAS_TransportStreamId;
	BYTE	m_PAS_VersionNumber;
	BYTE	m_PAS_CurrentNextIndicator;
	BYTE	m_PAS_SectionNumber;
	BYTE	m_PAS_LastSectionNumber;
	BYTE	m_PAS_N;	// N in the Program association section
	PATVal	m_PAT[MAX_PROGRAMS];
	WORD	m_PAS_ProgramNumber;
	WORD	m_PAS_PID;
	WORD	m_networkPID;
	int		m_PATPadding;

	BYTE	m_PMS_Pointer;
	BYTE	m_PMS_TableId;
	WORD	m_PMS_SectionLength;
	WORD	m_PMS_ProgramNumber;
	BYTE	m_PMS_VersionNumber;
	BYTE	m_PMS_CurrentNextIndicator;
	BYTE	m_PMS_SectionNumber;
	BYTE	m_PMS_LastSectionNumber;
	WORD	m_PMS_PCRPID;
	WORD	m_PMS_ProgramInfoLength;
	WORD	m_BytesInNextBlock;
	BYTE	m_PMS_StreamType;
	WORD	m_PMS_ElementaryPID;
	WORD	m_PMS_ESInfoLength;
	int		m_PMTPadding;
	
	QWORD   m_BytesProcessed;
	QWORD   m_TransportOffset;

#ifdef PARSE_ALL_PROGRAM_MAP_TABLES
	WORD	m_ValidProgramMapPIDs[0xffff];	// same as the max. # of programs
	int		m_nValidProgramMapPIDs;
#endif

public:
	M2TDemux ();
	~M2TDemux ();

	WORD			m_VideoPID;
	WORD			m_AudioPID;
	M2TCallback		m_Callback;
	M2TPMTCallback	m_PMTCallback;
	M2TPATCallback	m_PATCallback;
#ifdef PARSE_ALL_PROGRAM_MAP_TABLES
	M2TPMSCallback	m_PMSCallback;
#endif
	void			*m_Context;
	WORD			m_ProgramNumber;
	BYTE			m_UserDefinedVideoStreamType;
	BYTE			m_UserDefinedAudioStreamType;

	void Reset (void);
	void ResetState (void);
	DWORD Demux (BYTE *pBuffer, DWORD dwBufferLength);
	int TransportHeader (BYTE *pBuffer, DWORD dwBufferLength);
	int AdaptationField (BYTE *pBuffer, DWORD dwBufferLength);
	int TransportData (BYTE *pBuffer, DWORD dwBufferLength);
	int Resync (BYTE *pBuffer, DWORD dwBufferLength);
	int ProgramAssociationTable (BYTE *pBuffer, DWORD dwBufferLength);
	int ConditionalAccessTable (BYTE *pBuffer, DWORD dwBufferLength);
	int ProgramMapTable (BYTE *pBuffer, DWORD dwBufferLength);
	int NetworkInformationTable (BYTE *pBuffer, DWORD dwBufferLength);	
#ifdef PARSE_ALL_PROGRAM_MAP_TABLES
	int IsProgramMapTablePID (WORD wPID);
#endif
};

#endif