m1s.h

来自「这是一个SIGMA方案的PMP播放器的UCLINUX程序,可播放DVD,VCD,」· C头文件 代码 · 共 73 行

#ifndef _M1S_H
#define _M1S_H

#include "basic.h"

typedef MPEG_SCR	MPEG_TIMESTAMP;

#define SCR_VALID_FLAG	1
#define PTS_VALID_FLAG	2
#define DTS_VALID_FLAG	4

typedef void (*MPEG1Callback)(BYTE *pData, DWORD Length, BYTE PacketId,
			      MPEG_TIMESTAMP Scr, MPEG_TIMESTAMP Pts, 
			      MPEG_TIMESTAMP Dts, BYTE Flags, QWORD StartCodeOffset,
			      void *Context);

typedef struct tagPACKET_ENTRY
{
	MPEG_TIMESTAMP	Scr;
	MPEG_TIMESTAMP	Pts;
	MPEG_TIMESTAMP	Dts;
	unsigned long	Flags;
	unsigned char *	pData;
	unsigned long	DataLength;

} PACKET_ENTRY, *PPACKET_ENTRY;

#ifdef CARIBBEAN
class MPEG1Demux: public RMdemuxBase
#else
class MPEG1Demux
#endif // CARIBBEAN
{
 public:
	MPEG1Demux ();
	~MPEG1Demux ();

	MPEG1Callback	m_Callback;
	void *			m_Context;
	DWORD			m_IsDATFile;	// .DAT files are tracks extracted from VideoCDs

	void Reset (void);
	void ResetState(void);

	DWORD Demux (BYTE *pBuffer, DWORD dwBufferLength);

 private:
	DWORD		m_State;
	DWORD		m_SubState;
	DWORD		m_TotalBytesSkipped;
	MPEG_TIMESTAMP	m_BytesProcessed;	

	BYTE		m_PacketId;
	WORD		m_PacketLength;
	WORD		m_HeaderLength;
	WORD		m_DataLength;
	MPEG_TIMESTAMP	m_Scr;
	MPEG_TIMESTAMP	m_Pts;
	MPEG_TIMESTAMP	m_Dts;
	BYTE		m_Flags;
	QWORD           m_PESOffset;

 private:
	DWORD StartCodeSubStateHandling (BYTE *pBuffer, DWORD dwBufferLength);
	DWORD PackSubStateHandling (BYTE *pBuffer, DWORD dwBufferLength);
	DWORD PacketSubStateHandling (BYTE *pBuffer, DWORD dwBufferLength);
	DWORD SystemHeaderSubStateHandling (BYTE *pBuffer, DWORD dwBufferLength);
	DWORD ProcessingDataSubStateHandling (BYTE *pBuffer, DWORD dwBufferLength);
	void PrintState (void);
};

#endif // _M1S_H