vcd.h

一个两碟控制的VCD的代码,两碟之间的转动及连续播放,已大量生产的CODE.

/* Copyright 1996, ESS Technology, Inc.					*/
/* SCCSID @(#)vcd.h	1.18 12/9/97 */

/*
 * $Log$
 */

#ifndef __VCD_H__
#define __VCD_H__

#include "common.h"


#define DATA_TRACK	1
#define AUDIO_TRACK	0

#define INFO_VCD_START          (16768+ADJUST_4_LINE) /* dword address in DRAM */

/* The following two lines must be changed at the same time ,same value*/
GBLDEF(int INFO_VCD_OFFSET,     (INFO_VCD_START*4)); /* byte address in DRAM */
#define MAC_INFO_VCD_OFFSET     (INFO_VCD_START*4)   /* byte address in DRAM */

/* VCD file download functions */
int dump_info_vcd();		/* get the info.vcd into dram */
int dump_entries_vcd();	/* get the entries.vcd into dram */

/* get track, entry, segment and PSD info functions */
int get_segment_info(int seg_num, unsigned char *content, int *len);
int get_entry_info(int entry_num, unsigned char *track_num,
		   unsigned int *start_mmssff,
		   int *end_mmssff);
int get_track_info(unsigned char track_num, unsigned int *start_mmssff,
		   unsigned int *end_mmssff, unsigned char *type);
char * get_PSD(int offset, int size);
int get_entry_number(int CDtime);
int get_track_entries(unsigned char track_number, unsigned int *beg,
		      unsigned int *end);
#ifdef SCENE
int dump_lot_vcd(void);
unsigned short get_list_offset(unsigned int);
#endif /*SCENE*/

int is_track_pre_emphasis(int track);


/* init function */
void reset_PSD();

/* extern variables */
#ifdef CUST4 
/* For some VCD, 256B is not enough..for the time being, increase to 512B */
#define SCRATCH_BUF_SIZE	512
#else
#define SCRATCH_BUF_SIZE	256
#endif

extern short		numAVtrack;
#ifdef CUST3_63
extern unsigned int dump_fast;
#endif

extern unsigned int *TrackInfoAdr;

#endif