mirror of https://github.com/mpv-player/mpv
246 lines
7.0 KiB
C
246 lines
7.0 KiB
C
//=================== VideoCD ==========================
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#if defined(linux) || defined(sun) || defined(__bsdi__)
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typedef struct mp_vcd_priv_st mp_vcd_priv_t;
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#if defined(linux)
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#include <linux/cdrom.h>
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#elif defined(sun)
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#include <sys/cdio.h>
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static int sun_vcd_read(mp_vcd_priv_t*, int*);
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#elif defined(__bsdi__)
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#include <dvd.h>
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#endif
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struct mp_vcd_priv_st {
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int fd;
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struct cdrom_tocentry entry;
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char buf[VCD_SECTOR_SIZE];
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};
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static inline void vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect){
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vcd->entry.cdte_addr.msf.frame=sect%75;
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sect=sect/75;
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vcd->entry.cdte_addr.msf.second=sect%60;
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sect=sect/60;
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vcd->entry.cdte_addr.msf.minute=sect;
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}
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static inline unsigned int vcd_get_msf(mp_vcd_priv_t* vcd){
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return vcd->entry.cdte_addr.msf.frame +
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(vcd->entry.cdte_addr.msf.second+
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vcd->entry.cdte_addr.msf.minute*60)*75;
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}
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int vcd_seek_to_track(mp_vcd_priv_t* vcd,int track){
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vcd->entry.cdte_format = CDROM_MSF;
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vcd->entry.cdte_track = track;
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if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif1: %s\n",strerror(errno));
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return -1;
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}
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return VCD_SECTOR_DATA*vcd_get_msf(vcd);
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}
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int vcd_get_track_end(mp_vcd_priv_t* vcd,int track){
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struct cdrom_tochdr tochdr;
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if (ioctl(vcd->fd,CDROMREADTOCHDR,&tochdr)==-1) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
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return -1;
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}
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vcd->entry.cdte_format = CDROM_MSF;
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vcd->entry.cdte_track = track<tochdr.cdth_trk1?(track+1):CDROM_LEADOUT;
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if (ioctl(vcd->fd, CDROMREADTOCENTRY, &vcd->entry)) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"ioctl dif2: %s\n",strerror(errno));
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return -1;
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}
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return VCD_SECTOR_DATA*vcd_get_msf(vcd);
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}
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mp_vcd_priv_t* vcd_read_toc(int fd){
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struct cdrom_tochdr tochdr;
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mp_vcd_priv_t* vcd;
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int i, min = 0, sec = 0, frame = 0;
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if (ioctl(fd,CDROMREADTOCHDR,&tochdr)==-1) {
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mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
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return NULL;
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}
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", tochdr.cdth_trk0);
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.cdth_trk1);
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for (i=tochdr.cdth_trk0 ; i<=tochdr.cdth_trk1 + 1; i++){
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struct cdrom_tocentry tocentry;
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tocentry.cdte_track = i<=tochdr.cdth_trk1 ? i : CDROM_LEADOUT;
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tocentry.cdte_format = CDROM_MSF;
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if (ioctl(fd,CDROMREADTOCENTRY,&tocentry)==-1) {
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mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
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return NULL;
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}
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if (i<=tochdr.cdth_trk1)
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mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d: adr=%d ctrl=%d format=%d %02d:%02d:%02d mode: %d\n",
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(int)tocentry.cdte_track,
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(int)tocentry.cdte_adr,
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(int)tocentry.cdte_ctrl,
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(int)tocentry.cdte_format,
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(int)tocentry.cdte_addr.msf.minute,
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(int)tocentry.cdte_addr.msf.second,
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(int)tocentry.cdte_addr.msf.frame,
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(int)tocentry.cdte_datamode
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);
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if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
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{
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if (i > tochdr.cdth_trk0)
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{
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min = tocentry.cdte_addr.msf.minute - min;
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sec = tocentry.cdte_addr.msf.second - sec;
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frame = tocentry.cdte_addr.msf.frame - frame;
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if ( frame < 0 )
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{
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frame += 75;
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sec --;
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}
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if ( sec < 0 )
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{
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sec += 60;
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min --;
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}
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n", i - 1, min, sec, frame);
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}
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min = tocentry.cdte_addr.msf.minute;
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sec = tocentry.cdte_addr.msf.second;
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frame = tocentry.cdte_addr.msf.frame;
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}
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}
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vcd = malloc(sizeof(mp_vcd_priv_t));
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vcd->fd = fd;
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return vcd;
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}
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static int vcd_read(mp_vcd_priv_t* vcd,char *mem){
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#if defined(linux) || defined(__bsdi__)
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memcpy(vcd->buf,&vcd->entry.cdte_addr.msf,sizeof(struct cdrom_msf));
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if(ioctl(vcd->fd,CDROMREADRAW,vcd->buf)==-1) return 0; // EOF?
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memcpy(mem,&vcd->buf[VCD_SECTOR_OFFS],VCD_SECTOR_DATA);
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#elif defined(sun)
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{
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int offset;
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if (sun_vcd_read(vcd->fd, &offset) <= 0) return 0;
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memcpy(mem,&vcd->buf[offset],VCD_SECTOR_DATA);
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}
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#endif
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vcd->entry.cdte_addr.msf.frame++;
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if (vcd->entry.cdte_addr.msf.frame==75){
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vcd->entry.cdte_addr.msf.frame=0;
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vcd->entry.cdte_addr.msf.second++;
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if (vcd->entry.cdte_addr.msf.second==60){
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vcd->entry.cdte_addr.msf.second=0;
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vcd->entry.cdte_addr.msf.minute++;
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}
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}
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return VCD_SECTOR_DATA;
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}
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#ifdef sun
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#include <sys/scsi/generic/commands.h>
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#include <sys/scsi/impl/uscsi.h>
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#define SUN_XAREAD 1 /*fails on atapi drives*/
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#define SUN_MODE2READ 2 /*fails on atapi drives*/
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#define SUN_SCSIREAD 3
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#define SUN_VCDREAD SUN_SCSIREAD
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static int sun_vcd_read(mp_vcd_priv_t* vcd, int *offset)
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{
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#if SUN_VCDREAD == SUN_XAREAD
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struct cdrom_cdxa cdxa;
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cdxa.cdxa_addr = vcd_get_msf(vcd);
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cdxa.cdxa_length = 1;
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cdxa.cdxa_data = vcd->buf;
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cdxa.cdxa_format = CDROM_XA_SECTOR_DATA;
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if(ioctl(vcd->fd,CDROMCDXA,&cdxa)==-1) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMCDXA: %s\n",strerror(errno));
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return 0;
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}
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*offset = 0;
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#elif SUN_VCDREAD == SUN_MODE2READ
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struct cdrom_read cdread;
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cdread.cdread_lba = 4*vcd_get_msf(vcd);
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cdread.cdread_bufaddr = vcd->buf;
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cdread.cdread_buflen = 2336;
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if(ioctl(vcd->fd,CDROMREADMODE2,&cdread)==-1) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"CDROMREADMODE2: %s\n",strerror(errno));
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return 0;
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}
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*offset = 8;
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#elif SUN_VCDREAD == SUN_SCSIREAD
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struct uscsi_cmd sc;
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union scsi_cdb cdb;
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int lba = vcd_get_msf(vcd);
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int blocks = 1;
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int sector_type;
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int sync, header_code, user_data, edc_ecc, error_field;
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int sub_channel;
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/* sector_type = 3; *//* mode2 */
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sector_type = 5; /* mode2/form2 */
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sync = 0;
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header_code = 0;
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user_data = 1;
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edc_ecc = 0;
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error_field = 0;
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sub_channel = 0;
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memset(&cdb, 0, sizeof(cdb));
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memset(&sc, 0, sizeof(sc));
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cdb.scc_cmd = 0xBE;
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cdb.cdb_opaque[1] = (sector_type) << 2;
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cdb.cdb_opaque[2] = (lba >> 24) & 0xff;
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cdb.cdb_opaque[3] = (lba >> 16) & 0xff;
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cdb.cdb_opaque[4] = (lba >> 8) & 0xff;
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cdb.cdb_opaque[5] = lba & 0xff;
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cdb.cdb_opaque[6] = (blocks >> 16) & 0xff;
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cdb.cdb_opaque[7] = (blocks >> 8) & 0xff;
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cdb.cdb_opaque[8] = blocks & 0xff;
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cdb.cdb_opaque[9] = (sync << 7) |
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(header_code << 5) |
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(user_data << 4) |
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(edc_ecc << 3) |
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(error_field << 1);
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cdb.cdb_opaque[10] = sub_channel;
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sc.uscsi_cdb = (caddr_t)&cdb;
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sc.uscsi_cdblen = 12;
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sc.uscsi_bufaddr = vcd->buf;
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sc.uscsi_buflen = 2336;
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sc.uscsi_flags = USCSI_ISOLATE | USCSI_READ;
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sc.uscsi_timeout = 20;
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if (ioctl(vcd->fd, USCSICMD, &sc)) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"USCSICMD: READ CD: %s\n",strerror(errno));
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return -1;
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}
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if (sc.uscsi_status) {
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mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed with status %d\n", sc.uscsi_status);
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return -1;
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}
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*offset = 0;
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return 1;
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#else
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#error SUN_VCDREAD
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#endif
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}
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#endif /*sun*/
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#else /* linux || sun || __bsdi__ */
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#error vcd is not yet supported on this arch...
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#endif
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