DVD

开发平台：
C/C++

svcd.c：源码内容
							/*
** FILE
** svcd.c
**
** DESCRIPTION
** check and return current CD infomation.
** manage low-level navigation structure.
**
*/
#include "config.h"
#include "global.h"
#include "memmap0.h"
#include "func.h"
#include "dma.h"
#include "cdxa.h"
#include "util.h"
#include "stdlib.h"
#include "cdfs.h"
#include "epp.h"
#include "cfont.h"
#include "cd.h"
#include "svcd.h"
#include "osd.h"
#include "user_init.h"
#include "image.h"
#include "navdata.h"
#include "fs96602.h"
#include "fsNav.h"
#include "atapi_if.h"
#ifdef SP1000_NO_DVD
#include "svcd_null.c"
#else
//======================================================
// debug option
//======================================================
#ifndef	DVDRELEASE
//#define SVCD_DBG        1
#endif
#ifndef SVCD_DBG
#undef printf
#undef print_block
#define printf(f, a...) do {} while (0)
#define print_block(x,y) do {} while (0)
#endif
//UINT32 dVts_iso9600_addr;
/*
**
** iso9660_str	Tag (at PVD) for CDROM disc
**
** vcd_str	Tag (at INFO) for VCD
** cvd_str	Tag (at INFO) for CVD
** svcd_str	Tag (at INFO) for SVCD
*/
static	const	char	iso9660_str[5]	= {'C','D','0','0','1'};
static	const	char	vcd_str[8]	= {'V','I','D','E','O','_','C','D'};
static	const	char	cdi_str[4]	= {'C','D','-','I'};
static	const	char	cvd_str[8]	= {'H','Q','-','V','C','D',' ',' '};
static	const	char	svcd_str[8]	= {'S','U','P','E','R','V','C','D'};
static  const   char    oko_str[6] = {'P','A','-','V','C','D'};
static	const	char	mpeg_str[4]	= {'M','P','E','G'};
static	const	char	vcd30_str[7] = {'S','_','V','C','D','3','0'};
void Check9660Init();
UINT32 Check9660Dir(UINT32);
void Check9660Files(UINT32);
UINT32 CheckFileInDir(char* pStr, UINT32 nDirLoc);      //wanghaoying 2003-8-12 17:13 added 
extern void save_cmp_disc_info(UINT32 info1);           //wanghaoying 2003-8-12 17:15
extern BYTE DiscType;
UINT32 nVideoTsLoc;
//terry,2003/12/25 02:15PM
#ifdef BBK_DVD
#define CORRECT_VCD_TYPE
#endif
#ifdef  CORRECT_VCD_TYPE            
void correct_vcd_type(void)
{
   if (cd_trk_hi > 1)
   {
       if( M2I(gettrkmsf(cd_trk_lo))<180 )
          cd_trk_lo++;
   }
}
#else
#define correct_vcd_type();
#endif
/*
** FUNCTION
** check_cdtype
** 
** DESCRIPTION
** this is the routine to check cd-type
*/
int	check_cdtype()
{
	int Res;
	t_primary_volume_descriptor *v ;
	
	/*
	** check track 1 coding type
	*/
	
	printf("check typen");
	
	cd_type_loaded = CDVCD10;
	
	if ((gettrkcna(1) & CNA_MASK_TYPE) != CNA_DATA)
	{
		cd_type_loaded = CDDA;
		return cd_type_loaded;
	}
//#ifndef SUPPORT_MIX_MP3_CDDA   //linrc change "SUPPORT_MIX_MP3_CDDA" to "SUPPORT_MIX_DATA_CDDA_DISC"
#ifndef SUPPORT_MIX_DATA_CDDA_DISC //because we not only support this type mix mode disc 2004-12-15 15:53
	// cyue for cd xtra 2000/11/13 11:06AM
	if((cd_trk_hi > 1) && ((gettrkcna(2) & CNA_MASK_TYPE) != CNA_DATA))
	{
		cd_type_loaded = CDDA;
		cd_trk_lo = 2;
		return cd_type_loaded;
	}
#endif
	
	wb_init(msf2l(MSF_INFO));
	
	if(is_user_opened())
		return -1;
	if(system_state == SYSTEM_POWER)
		return -3;
	
	{
		t_sect_info	*p = (t_sect_info *)pwb;
		
		//printf("tag:%s, ver:%xn",p->file_id,p->version);
        printf("tag:%02x%02x%02x%02x%02x%02x:%02x%02x%02x%02x%02x%02x, ver:%xn", 
            p->file_id[0],p->file_id[1],p->file_id[2],p->file_id[3],p->file_id[4],p->file_id[5],
            p->file_id[6],p->file_id[7],p->file_id[8],p->file_id[9],p->file_id[10],p->file_id[11],
            p->version);
		print_block(p->album_id,10);
        /*
		** compare TAG
		*/    
		if(strncmp(p->file_id, vcd_str, 8) == 0)
		{
			/* VCD */
			int ver = getUINT16_bi(&p->version);
			
			//terry,2002/9/6 12:01PM
			//纒

						