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support function for vcd on darwin

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13683 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nplourde 2004-10-18 21:06:50 +00:00
parent 97018803a5
commit 3d0852ada9
1 changed files with 181 additions and 0 deletions
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181
libmpdemux/vcd_read_darwin.h Normal file
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#include <IOKit/storage/IOCDMediaBSDClient.h>
#include <CoreFoundation/CoreFoundation.h>
//=================== 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;
typedef struct mp_vcd_priv_st
{
int fd;
dk_cd_read_track_info_t entry;
CDMSF msf;
cdsector_t buf;
} mp_vcd_priv_t;
static inline void vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
{
vcd->msf.frame=sect%75;
sect=sect/75;
vcd->msf.second=sect%60;
sect=sect/60;
vcd->msf.minute=sect;
}
static inline unsigned int vcd_get_msf(mp_vcd_priv_t* vcd)
{
return vcd->msf.frame +
(vcd->msf.second+
vcd->msf.minute*60)*75;
return 0;
}
int vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
{
dk_cd_read_track_info_t tocentry;
struct CDTrackInfo entry;
memset( &vcd->entry, 0, sizeof(vcd->entry));
vcd->entry.addressType = kCDTrackInfoAddressTypeTrackNumber;
vcd->entry.address = track;
vcd->entry.bufferLength = sizeof(entry);
vcd->entry.buffer = &entry;
if (ioctl(vcd->fd, DKIOCCDREADTRACKINFO, &vcd->entry))
{
mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif1: %s\n",strerror(errno));
return -1;
}
return VCD_SECTOR_DATA*vcd_get_msf(vcd);
return -1;
}
int vcd_get_track_end(mp_vcd_priv_t* vcd, int track)
{
dk_cd_read_disc_info_t tochdr;
struct CDDiscInfo hdr;
dk_cd_read_track_info_t tocentry;
struct CDTrackInfo entry;
//read toc header
memset(&tochdr, 0, sizeof(tochdr));
tochdr.buffer = &hdr;
tochdr.bufferLength = sizeof(hdr);
if (ioctl(vcd->fd, DKIOCCDREADDISCINFO, &tochdr) < 0)
{
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return NULL;
}
//read track info
memset( &vcd->entry, 0, sizeof(vcd->entry));
vcd->entry.addressType = kCDTrackInfoAddressTypeTrackNumber;
vcd->entry.address = track<(hdr.lastTrackNumberInLastSessionLSB+1)?(track):CDROM_LEADOUT;
vcd->entry.bufferLength = sizeof(entry);
vcd->entry.buffer = &entry;
if (ioctl(vcd->fd, DKIOCCDREADTRACKINFO, &vcd->entry))
{
mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif2: %s\n",strerror(errno));
return -1;
}
return VCD_SECTOR_DATA*vcd_get_msf(vcd);
return -1;
}
mp_vcd_priv_t* vcd_read_toc(int fd)
{
dk_cd_read_disc_info_t tochdr;
struct CDDiscInfo hdr;
dk_cd_read_track_info_t tocentry;
struct CDTrackInfo entry;
CDMSF trackMSF;
mp_vcd_priv_t* vcd;
int i;
//read toc header
memset(&tochdr, 0, sizeof(tochdr));
tochdr.buffer = &hdr;
tochdr.bufferLength = sizeof(hdr);
if (ioctl(fd, DKIOCCDREADDISCINFO, &tochdr) < 0)
{
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
return NULL;
}
//print all track info
for (i=hdr.firstTrackNumberInLastSessionLSB ; i<=hdr.lastTrackNumberInLastSessionLSB ; i++)
{
memset( &tocentry, 0, sizeof(tocentry));
tocentry.addressType = kCDTrackInfoAddressTypeTrackNumber;
tocentry.address = i;
tocentry.bufferLength = sizeof(entry);
tocentry.buffer = &entry;
if (ioctl(fd,DKIOCCDREADTRACKINFO,&tocentry)==-1)
{
mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
return NULL;
}
trackMSF = CDConvertLBAToMSF(entry.trackStartAddress);
//mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d\n",
mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: format=%d %02d:%02d:%02d\n",
(int)tocentry.address,
//(int)tocentry.entry.addr_type,
//(int)tocentry.entry.control,
(int)tocentry.addressType,
(int)trackMSF.minute,
(int)trackMSF.second,
(int)trackMSF.frame
);
}
vcd = malloc(sizeof(mp_vcd_priv_t));
vcd->fd = fd;
vcd->msf = trackMSF;
return vcd;
return NULL;
}
static int vcd_read(mp_vcd_priv_t* vcd,char *mem)
{
if (pread(vcd->fd,&vcd->buf,VCD_SECTOR_SIZE,vcd_get_msf(vcd)*VCD_SECTOR_SIZE) != VCD_SECTOR_SIZE)
return 0; // EOF?
vcd->msf.frame++;
if (vcd->msf.frame==75)
{
vcd->msf.frame=0;
vcd->msf.second++;
if (vcd->msf.second==60)
{
vcd->msf.second=0;
vcd->msf.minute++;
}
}
memcpy(mem,vcd->buf.data,VCD_SECTOR_DATA);
return VCD_SECTOR_DATA;
return 0;
}