diff options
Diffstat (limited to 'stream/vcd_read_fbsd.h')
| -rw-r--r-- | stream/vcd_read_fbsd.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/stream/vcd_read_fbsd.h b/stream/vcd_read_fbsd.h new file mode 100644 index 0000000000..c416555137 --- /dev/null +++ b/stream/vcd_read_fbsd.h @@ -0,0 +1,138 @@ +#include <sys/cdio.h> +#include <sys/cdrio.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; + struct ioc_read_toc_single_entry entry; + cdsector_t buf; +} mp_vcd_priv_t; + +static inline void vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect){ + vcd->entry.entry.addr.msf.frame=sect%75; + sect=sect/75; + vcd->entry.entry.addr.msf.second=sect%60; + sect=sect/60; + vcd->entry.entry.addr.msf.minute=sect; +} + +static inline unsigned int vcd_get_msf(mp_vcd_priv_t* vcd){ + return vcd->entry.entry.addr.msf.frame + + (vcd->entry.entry.addr.msf.second+ + vcd->entry.entry.addr.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.track = track; + if (ioctl(vcd->fd, CDIOREADTOCENTRY, &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.track = track<tochdr.ending_track?(track+1):CDROM_LEADOUT; + if (ioctl(vcd->fd, CDIOREADTOCENTRY, &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_single_entry tocentry; + + tocentry.track = i<=tochdr.ending_track ? i : CDROM_LEADOUT; + tocentry.address_format = CD_MSF_FORMAT; + + if (ioctl(fd,CDIOREADTOCENTRY,&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.track, + (int)tocentry.entry.addr_type, + (int)tocentry.entry.control, + (int)tocentry.address_format, + (int)tocentry.entry.addr.msf.minute, + (int)tocentry.entry.addr.msf.second, + (int)tocentry.entry.addr.msf.frame + ); + + if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO)) + { + if (i > tochdr.starting_track) + { + min = tocentry.entry.addr.msf.minute - min; + sec = tocentry.entry.addr.msf.second - sec; + frame = tocentry.entry.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.entry.addr.msf.minute; + sec = tocentry.entry.addr.msf.second; + frame = tocentry.entry.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 (pread(vcd->fd,&vcd->buf,VCD_SECTOR_SIZE,vcd_get_msf(vcd)*VCD_SECTOR_SIZE) + != VCD_SECTOR_SIZE) return 0; // EOF? + + vcd->entry.entry.addr.msf.frame++; + if (vcd->entry.entry.addr.msf.frame==75){ + vcd->entry.entry.addr.msf.frame=0; + vcd->entry.entry.addr.msf.second++; + if (vcd->entry.entry.addr.msf.second==60){ + vcd->entry.entry.addr.msf.second=0; + vcd->entry.entry.addr.msf.minute++; + } + } + memcpy(mem,vcd->buf.data,VCD_SECTOR_DATA); + return VCD_SECTOR_DATA; +} + |