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#include <sys/types.h>
#include <inttypes.h>
#include "libavutil/intreadwrite.h"
#include <sys/cdio.h>
#if defined(__NetBSD__) || defined(__OpenBSD__)
#define VCD_NETBSD 1
#endif
#ifdef VCD_NETBSD
#include <sys/scsiio.h>
#define TOCADDR(te) ((te).data->addr)
#define READ_TOC CDIOREADTOCENTRYS
#else
#include <sys/cdrio.h>
#define TOCADDR(te) ((te).entry.addr)
#define READ_TOC CDIOREADTOCENTRY
#endif
//=================== VideoCD ==========================
#define CDROM_LEADOUT 0xAA
typedef struct {
uint8_t sync [12];
uint8_t header [4];
uint8_t subheader [8];
uint8_t data [2324];
uint8_t spare [4];
} cdsector_t;
#ifdef VCD_NETBSD
typedef struct ioc_read_toc_entry vcd_tocentry;
#else
typedef struct ioc_read_toc_single_entry vcd_tocentry;
#endif
typedef struct mp_vcd_priv_st {
int fd;
vcd_tocentry entry;
#ifdef VCD_NETBSD
struct cd_toc_entry entry_data;
#else
cdsector_t buf;
#endif
struct ioc_toc_header tochdr;
} mp_vcd_priv_t;
static inline void
vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
{
#ifdef VCD_NETBSD
vcd->entry.data = &vcd->entry_data;
#endif
sect += 150;
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)
{
#ifdef VCD_NETBSD
vcd->entry.data = &vcd->entry_data;
#endif
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)
{
#ifdef VCD_NETBSD
vcd->entry.data = &vcd->entry_data;
#endif
return TOCADDR(vcd->entry).msf.frame +
(TOCADDR(vcd->entry).msf.second +
TOCADDR(vcd->entry).msf.minute * 60) * 75 - 150;
}
/**
* \brief read a TOC entry
* \param fd device to read from
* \param dst buffer to read data into
* \param nr track number to read info for
* \return 1 on success, 0 on failure
*/
static int
read_toc_entry(mp_vcd_priv_t *vcd, int nr)
{
vcd->entry.address_format = CD_MSF_FORMAT;
#ifdef VCD_NETBSD
vcd->entry.data_len = sizeof(struct cd_toc_entry);
vcd->entry.data = &vcd->entry_data;
vcd->entry.starting_track = nr;
#else
vcd->entry.track = nr;
#endif
if (ioctl(vcd->fd, READ_TOC, &vcd->entry) == -1) {
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
return 0;
}
return 1;
}
int
vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
{
if (!read_toc_entry(vcd, track))
return -1;
return VCD_SECTOR_DATA * vcd_get_msf(vcd);
}
int
vcd_get_track_end(mp_vcd_priv_t* vcd, int track)
{
if (!read_toc_entry(vcd,
track < vcd->tochdr.ending_track ? track + 1 : CDROM_LEADOUT))
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, last_startsect;
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);
vcd = malloc(sizeof(mp_vcd_priv_t));
vcd->fd = fd;
vcd->tochdr = tochdr;
for (i = tochdr.starting_track; i <= tochdr.ending_track + 1; i++) {
if (!read_toc_entry(vcd,
i <= tochdr.ending_track ? i : CDROM_LEADOUT)) {
free(vcd);
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",
#ifdef VCD_NETBSD
(int)vcd->entry.starting_track,
(int)vcd->entry.data->addr_type,
(int)vcd->entry.data->control,
#else
(int)vcd->entry.track,
(int)vcd->entry.entry.addr_type,
(int)vcd->entry.entry.control,
#endif
(int)vcd->entry.address_format,
(int)TOCADDR(vcd->entry).msf.minute,
(int)TOCADDR(vcd->entry).msf.second,
(int)TOCADDR(vcd->entry).msf.frame
);
if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
{
int startsect = vcd_get_msf(vcd);
if (i > tochdr.starting_track)
{
// convert duraion to MSF
vcd_set_msf(vcd, startsect - last_startsect);
mp_msg(MSGT_IDENTIFY, MSGL_INFO,
"ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n",
i - 1,
TOCADDR(vcd->entry).msf.minute,
TOCADDR(vcd->entry).msf.second,
TOCADDR(vcd->entry).msf.frame);
}
last_startsect = startsect;
}
}
return vcd;
}
static int
vcd_read(mp_vcd_priv_t* vcd, char *mem)
{
#ifdef VCD_NETBSD
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;
}
#else
if (pread(vcd->fd,&vcd->buf,VCD_SECTOR_SIZE,vcd_get_msf(vcd)*VCD_SECTOR_SIZE)
!= VCD_SECTOR_SIZE) return 0; // EOF?
memcpy(mem,vcd->buf.data,VCD_SECTOR_DATA);
#endif
vcd_inc_msf(vcd);
return VCD_SECTOR_DATA;
}
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