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#include <sys/types.h>
#include <inttypes.h>
#include "libavutil/intreadwrite.h"
#include <sys/cdio.h>
#include <sys/scsiio.h>
#define CDROM_LEADOUT 0xAA
#define TOCADDR(te) ((te).data->addr)
#define READ_TOC CDIOREADTOCENTRYS
typedef struct mp_vcd_priv_st {
int fd;
struct ioc_read_toc_entry entry;
struct cd_toc_entry entry_data;
} mp_vcd_priv_t;
static inline void
vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
{
vcd->entry.data = &vcd->entry_data;
TOCADDR(vcd->entry).msf.frame = sect % 75;
sect = sect / 75;
TOCADDR(vcd->entry).msf.second = sect % 60;
sect = sect / 60;
TOCADDR(vcd->entry).msf.minute = sect;
}
static inline void
vcd_inc_msf(mp_vcd_priv_t* vcd)
{
vcd->entry.data = &vcd->entry_data;
TOCADDR(vcd->entry).msf.frame++;
if (TOCADDR(vcd->entry).msf.frame==75){
TOCADDR(vcd->entry).msf.frame=0;
TOCADDR(vcd->entry).msf.second++;
if (TOCADDR(vcd->entry).msf.second==60){
TOCADDR(vcd->entry).msf.second=0;
TOCADDR(vcd->entry).msf.minute++;
}
}
}
static inline unsigned int
vcd_get_msf(mp_vcd_priv_t* vcd)
{
vcd->entry.data = &vcd->entry_data;
return TOCADDR(vcd->entry).msf.frame +
(TOCADDR(vcd->entry).msf.second +
TOCADDR(vcd->entry).msf.minute * 60) * 75;
}
int
vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
{
vcd->entry.address_format = CD_MSF_FORMAT;
vcd->entry.starting_track = track;
vcd->entry.data_len = sizeof(struct cd_toc_entry);
vcd->entry.data = &vcd->entry_data;
if (ioctl(vcd->fd, READ_TOC, &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 ioc_toc_header tochdr;
if (ioctl(vcd->fd, CDIOREADTOCHEADER, &tochdr) == -1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return -1;
}
vcd->entry.address_format = CD_MSF_FORMAT;
vcd->entry.starting_track = track < tochdr.ending_track ? (track + 1) : CDROM_LEADOUT;
vcd->entry.data_len = sizeof(struct cd_toc_entry);
vcd->entry.data = &vcd->entry_data;
if (ioctl(vcd->fd, READ_TOC, &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 ioc_toc_header tochdr;
mp_vcd_priv_t* vcd;
int i, min = 0, sec = 0, frame = 0;
if (ioctl(fd, CDIOREADTOCHEADER, &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.starting_track);
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.ending_track);
for (i = tochdr.starting_track; i <= tochdr.ending_track + 1; i++) {
struct ioc_read_toc_entry tocentry;
struct cd_toc_entry tocentry_data;
tocentry.starting_track = i<=tochdr.ending_track ? i : CDROM_LEADOUT;
tocentry.address_format = CD_MSF_FORMAT;
tocentry.data_len = sizeof(struct cd_toc_entry);
tocentry.data = &tocentry_data;
if (ioctl(fd, READ_TOC, &tocentry) == -1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
return NULL;
}
if (i <= tochdr.ending_track)
mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d\n",
(int)tocentry.starting_track,
(int)tocentry.data->addr_type,
(int)tocentry.data->control,
(int)tocentry.address_format,
(int)TOCADDR(tocentry).msf.minute,
(int)TOCADDR(tocentry).msf.second,
(int)TOCADDR(tocentry).msf.frame
);
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
{
if (i > tochdr.starting_track)
{
min = TOCADDR(tocentry).msf.minute - min;
sec = TOCADDR(tocentry).msf.second - sec;
frame = TOCADDR(tocentry).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 = TOCADDR(tocentry).msf.minute;
sec = TOCADDR(tocentry).msf.second;
frame = TOCADDR(tocentry).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)
{
struct scsireq sc;
int lba = vcd_get_msf(vcd);
int blocks;
int rc;
blocks = 1;
memset(&sc, 0, sizeof(sc));
sc.cmd[0] = 0xBE;
sc.cmd[1] = 5 << 2; // mode2/form2
AV_WB32(&sc.cmd[2], lba);
AV_WB24(&sc.cmd[6], blocks);
sc.cmd[9] = 1 << 4; // user data only
sc.cmd[10] = 0; // no subchannel
sc.cmdlen = 12;
sc.databuf = (caddr_t) mem;
sc.datalen = 2328;
sc.senselen = sizeof(sc.sense);
sc.flags = SCCMD_READ;
sc.timeout = 10000;
rc = ioctl(vcd->fd, SCIOCCOMMAND, &sc);
if (rc == -1) {
mp_msg(MSGT_STREAM,MSGL_ERR,"SCIOCCOMMAND: %s\n",strerror(errno));
return -1;
}
if (sc.retsts || sc.error) {
mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed: status %d error %d\n",
sc.retsts,sc.error);
return -1;
}
vcd_inc_msf(vcd);
return VCD_SECTOR_DATA;
}
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