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#include "libavutil/intreadwrite.h"
//=================== VideoCD ==========================
#if defined(linux) || defined(sun) || defined(__bsdi__)
typedef struct mp_vcd_priv_st mp_vcd_priv_t;
#if defined(linux)
#include <linux/cdrom.h>
#elif defined(sun)
#include <sys/cdio.h>
static int sun_vcd_read(mp_vcd_priv_t*, int*);
#elif defined(__bsdi__)
#include <dvd.h>
#endif
struct mp_vcd_priv_st {
int fd;
struct cdrom_tocentry entry;
char buf[VCD_SECTOR_SIZE];
};
static inline void vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect){
sect += 150;
vcd->entry.cdte_addr.msf.frame=sect%75;
sect=sect/75;
vcd->entry.cdte_addr.msf.second=sect%60;
sect=sect/60;
vcd->entry.cdte_addr.msf.minute=sect;
}
static inline unsigned int vcd_get_msf(mp_vcd_priv_t* vcd){
return vcd->entry.cdte_addr.msf.frame +
(vcd->entry.cdte_addr.msf.second+
vcd->entry.cdte_addr.msf.minute*60)*75 - 150;
}
int vcd_seek_to_track(mp_vcd_priv_t* vcd,int track){
vcd->entry.cdte_format = CDROM_MSF;
vcd->entry.cdte_track = track;
if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif1: %s\n",strerror(errno));
return -1;
}
return VCD_SECTOR_DATA*vcd_get_msf(vcd);
}
int vcd_get_track_end(mp_vcd_priv_t* vcd,int track){
struct cdrom_tochdr tochdr;
if (ioctl(vcd->fd,CDROMREADTOCHDR,&tochdr)==-1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return -1;
}
vcd->entry.cdte_format = CDROM_MSF;
vcd->entry.cdte_track = track<tochdr.cdth_trk1?(track+1):CDROM_LEADOUT;
if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif2: %s\n",strerror(errno));
return -1;
}
return VCD_SECTOR_DATA*vcd_get_msf(vcd);
}
mp_vcd_priv_t* vcd_read_toc(int fd){
struct cdrom_tochdr tochdr;
mp_vcd_priv_t* vcd;
int i, min = 0, sec = 0, frame = 0;
if (ioctl(fd,CDROMREADTOCHDR,&tochdr)==-1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return NULL;
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", tochdr.cdth_trk0);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.cdth_trk1);
for (i=tochdr.cdth_trk0 ; i<=tochdr.cdth_trk1 + 1; i++){
struct cdrom_tocentry tocentry;
tocentry.cdte_track = i<=tochdr.cdth_trk1 ? i : CDROM_LEADOUT;
tocentry.cdte_format = CDROM_MSF;
if (ioctl(fd,CDROMREADTOCENTRY,&tocentry)==-1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
return NULL;
}
if (i<=tochdr.cdth_trk1)
mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d mode: %d\n",
(int)tocentry.cdte_track,
(int)tocentry.cdte_adr,
(int)tocentry.cdte_ctrl,
(int)tocentry.cdte_format,
(int)tocentry.cdte_addr.msf.minute,
(int)tocentry.cdte_addr.msf.second,
(int)tocentry.cdte_addr.msf.frame,
(int)tocentry.cdte_datamode
);
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
{
if (i > tochdr.cdth_trk0)
{
min = tocentry.cdte_addr.msf.minute - min;
sec = tocentry.cdte_addr.msf.second - sec;
frame = tocentry.cdte_addr.msf.frame - frame;
if ( frame < 0 )
{
frame += 75;
sec --;
}
if ( sec < 0 )
{
sec += 60;
min --;
}
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n", i - 1, min, sec, frame);
}
min = tocentry.cdte_addr.msf.minute;
sec = tocentry.cdte_addr.msf.second;
frame = tocentry.cdte_addr.msf.frame;
}
}
vcd = malloc(sizeof(mp_vcd_priv_t));
vcd->fd = fd;
return vcd;
}
static int vcd_read(mp_vcd_priv_t* vcd,char *mem){
#if defined(linux) || defined(__bsdi__)
memcpy(vcd->buf,&vcd->entry.cdte_addr.msf,sizeof(struct cdrom_msf));
if(ioctl(vcd->fd,CDROMREADRAW,vcd->buf)==-1) return 0; // EOF?
memcpy(mem,&vcd->buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA);
#elif defined(sun)
{
int offset;
if (sun_vcd_read(vcd, &offset) <= 0) return 0;
memcpy(mem,&vcd->buf[offset],VCD_SECTOR_DATA);
}
#endif
vcd->entry.cdte_addr.msf.frame++;
if (vcd->entry.cdte_addr.msf.frame==75){
vcd->entry.cdte_addr.msf.frame=0;
vcd->entry.cdte_addr.msf.second++;
if (vcd->entry.cdte_addr.msf.second==60){
vcd->entry.cdte_addr.msf.second=0;
vcd->entry.cdte_addr.msf.minute++;
}
}
return VCD_SECTOR_DATA;
}
#ifdef sun
#include <sys/scsi/generic/commands.h>
#include <sys/scsi/impl/uscsi.h>
#define SUN_XAREAD 1 /*fails on atapi drives*/
#define SUN_MODE2READ 2 /*fails on atapi drives*/
#define SUN_SCSIREAD 3
#define SUN_VCDREAD SUN_SCSIREAD
static int sun_vcd_read(mp_vcd_priv_t* vcd, int *offset)
{
#if SUN_VCDREAD == SUN_XAREAD
struct cdrom_cdxa cdxa;
cdxa.cdxa_addr = vcd_get_msf(vcd);
cdxa.cdxa_length = 1;
cdxa.cdxa_data = vcd->buf;
cdxa.cdxa_format = CDROM_XA_SECTOR_DATA;
if(ioctl(vcd->fd,CDROMCDXA,&cdxa)==-1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMCDXA: %s\n",strerror(errno));
return 0;
}
*offset = 0;
#elif SUN_VCDREAD == SUN_MODE2READ
struct cdrom_read cdread;
cdread.cdread_lba = 4*vcd_get_msf(vcd);
cdread.cdread_bufaddr = vcd->buf;
cdread.cdread_buflen = 2336;
if(ioctl(vcd->fd,CDROMREADMODE2,&cdread)==-1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMREADMODE2: %s\n",strerror(errno));
return 0;
}
*offset = 8;
#elif SUN_VCDREAD == SUN_SCSIREAD
struct uscsi_cmd sc;
union scsi_cdb cdb;
int lba = vcd_get_msf(vcd);
int blocks = 1;
memset(&cdb, 0, sizeof(cdb));
memset(&sc, 0, sizeof(sc));
cdb.scc_cmd = 0xBE;
cdb.cdb_opaque[1] = 5 << 2; // mode2 / form2
AV_WB32(&cdb.cdb_opaque[2], lba);
AV_WB24(&cdb.cdb_opaque[6], blocks);
cdb.cdb_opaque[9] = 1 << 4; // user data only
cdb.cdb_opaque[10] = 0; // subchannel
sc.uscsi_cdb = (caddr_t)&cdb;
sc.uscsi_cdblen = 12;
sc.uscsi_bufaddr = vcd->buf;
sc.uscsi_buflen = 2336;
sc.uscsi_flags = USCSI_ISOLATE | USCSI_READ;
sc.uscsi_timeout = 20;
if (ioctl(vcd->fd, USCSICMD, &sc)) {
mp_msg(MSGT_STREAM,MSGL_ERR,"USCSICMD: READ CD: %s\n",strerror(errno));
return -1;
}
if (sc.uscsi_status) {
mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed with status %d\n", sc.uscsi_status);
return -1;
}
*offset = 0;
return 1;
#else
#error SUN_VCDREAD
#endif
}
#endif /*sun*/
#else /* linux || sun || __bsdi__ */
#error vcd is not yet supported on this arch...
#endif
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