stream/vcd_read_fbsd.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_VCD_READ_FBSD_H
  20 #define MPLAYER_VCD_READ_FBSD_H
  21
  22 #define _XOPEN_SOURCE 500
  23
  24 #include <sys/types.h>
  25 #include <inttypes.h>
  26 #include <unistd.h>
  27 #include "libavutil/intreadwrite.h"
  28 #include <sys/cdio.h>
  29 #include <sys/ioctl.h>
  30 #if defined(__NetBSD__) || defined(__OpenBSD__)
  31 #define VCD_NETBSD 1
  32 #endif
  33 #ifdef VCD_NETBSD
  34 #include <sys/scsiio.h>
  35 #define TOCADDR(te) ((te).data->addr)
  36 #define READ_TOC CDIOREADTOCENTRYS
  37 #else
  38 #include <sys/cdrio.h>
  39 #define TOCADDR(te) ((te).entry.addr)
  40 #define READ_TOC CDIOREADTOCENTRY
  41 #endif
  42 #include "mp_msg.h"
  43
  44 //=================== VideoCD ==========================
  45 #define CDROM_LEADOUT   0xAA
  46
  47 typedef struct {
  48         uint8_t sync            [12];
  49         uint8_t header          [4];
  50         uint8_t subheader       [8];
  51         uint8_t data            [2324];
  52         uint8_t spare           [4];
  53 } cdsector_t;
  54
  55 #ifdef VCD_NETBSD
  56 typedef struct ioc_read_toc_entry vcd_tocentry;
  57 #else
  58 typedef struct ioc_read_toc_single_entry vcd_tocentry;
  59 #endif
  60
  61 typedef struct mp_vcd_priv_st {
  62   int fd;
  63   vcd_tocentry entry;
  64 #ifdef VCD_NETBSD
  65   struct cd_toc_entry entry_data;
  66 #else
  67   cdsector_t buf;
  68 #endif
  69   struct ioc_toc_header tochdr;
  70 } mp_vcd_priv_t;
  71
  72 static inline void
  73 vcd_set_msf(mp_vcd_priv_t* vcd, unsigned int sect)
  74 {
  75 #ifdef VCD_NETBSD
  76   vcd->entry.data = &vcd->entry_data;
  77 #endif
  78   sect += 150;
  79   TOCADDR(vcd->entry).msf.frame = sect % 75;
  80   sect = sect / 75;
  81   TOCADDR(vcd->entry).msf.second = sect % 60;
  82   sect = sect / 60;
  83   TOCADDR(vcd->entry).msf.minute = sect;
  84 }
  85
  86 static inline void
  87 vcd_inc_msf(mp_vcd_priv_t* vcd)
  88 {
  89 #ifdef VCD_NETBSD
  90   vcd->entry.data = &vcd->entry_data;
  91 #endif
  92   TOCADDR(vcd->entry).msf.frame++;
  93   if (TOCADDR(vcd->entry).msf.frame==75){
  94     TOCADDR(vcd->entry).msf.frame=0;
  95     TOCADDR(vcd->entry).msf.second++;
  96     if (TOCADDR(vcd->entry).msf.second==60){
  97       TOCADDR(vcd->entry).msf.second=0;
  98       TOCADDR(vcd->entry).msf.minute++;
  99     }
 100   }
 101 }
 102
 103 static inline unsigned int
 104 vcd_get_msf(mp_vcd_priv_t* vcd)
 105 {
 106 #ifdef VCD_NETBSD
 107   vcd->entry.data = &vcd->entry_data;
 108 #endif
 109   return TOCADDR(vcd->entry).msf.frame +
 110         (TOCADDR(vcd->entry).msf.second +
 111          TOCADDR(vcd->entry).msf.minute * 60) * 75 - 150;
 112 }
 113
 114 /**
 115  * \brief read a TOC entry
 116  * \param fd device to read from
 117  * \param dst buffer to read data into
 118  * \param nr track number to read info for
 119  * \return 1 on success, 0 on failure
 120  */
 121 static int
 122 read_toc_entry(mp_vcd_priv_t *vcd, int nr)
 123 {
 124   vcd->entry.address_format = CD_MSF_FORMAT;
 125 #ifdef VCD_NETBSD
 126   vcd->entry.data_len = sizeof(struct cd_toc_entry);
 127   vcd->entry.data = &vcd->entry_data;
 128   vcd->entry.starting_track = nr;
 129 #else
 130   vcd->entry.track = nr;
 131 #endif
 132   if (ioctl(vcd->fd, READ_TOC, &vcd->entry) == -1) {
 133     mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc entry: %s\n",strerror(errno));
 134     return 0;
 135   }
 136   return 1;
 137 }
 138
 139 int
 140 vcd_seek_to_track(mp_vcd_priv_t* vcd, int track)
 141 {
 142   if (!read_toc_entry(vcd, track))
 143     return -1;
 144   return VCD_SECTOR_DATA * vcd_get_msf(vcd);
 145 }
 146
 147 static int
 148 vcd_get_track_end(mp_vcd_priv_t* vcd, int track)
 149 {
 150   if (!read_toc_entry(vcd,
 151           track < vcd->tochdr.ending_track ? track + 1 : CDROM_LEADOUT))
 152     return -1;
 153   return VCD_SECTOR_DATA * vcd_get_msf(vcd);
 154 }
 155
 156 static mp_vcd_priv_t*
 157 vcd_read_toc(int fd)
 158 {
 159   struct ioc_toc_header tochdr;
 160   mp_vcd_priv_t* vcd;
 161   int i, last_startsect;
 162   if (ioctl(fd, CDIOREADTOCHEADER, &tochdr) == -1) {
 163     mp_msg(MSGT_OPEN,MSGL_ERR,"read CDROM toc header: %s\n",strerror(errno));
 164     return NULL;
 165   }
 166   mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_START_TRACK=%d\n", tochdr.starting_track);
 167   mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VCD_END_TRACK=%d\n", tochdr.ending_track);
 168   vcd = malloc(sizeof(mp_vcd_priv_t));
 169   vcd->fd = fd;
 170   vcd->tochdr = tochdr;
 171   for (i = tochdr.starting_track; i <= tochdr.ending_track + 1; i++) {
 172     if (!read_toc_entry(vcd,
 173           i <= tochdr.ending_track ? i : CDROM_LEADOUT)) {
 174       free(vcd);
 175       return NULL;
 176     }
 177
 178     if (i <= tochdr.ending_track)
 179     mp_msg(MSGT_OPEN,MSGL_INFO,"track %02d:  adr=%d  ctrl=%d  format=%d  %02d:%02d:%02d\n",
 180 #ifdef VCD_NETBSD
 181           (int)vcd->entry.starting_track,
 182           (int)vcd->entry.data->addr_type,
 183           (int)vcd->entry.data->control,
 184 #else
 185           (int)vcd->entry.track,
 186           (int)vcd->entry.entry.addr_type,
 187           (int)vcd->entry.entry.control,
 188 #endif
 189           (int)vcd->entry.address_format,
 190           (int)TOCADDR(vcd->entry).msf.minute,
 191           (int)TOCADDR(vcd->entry).msf.second,
 192           (int)TOCADDR(vcd->entry).msf.frame
 193       );
 194
 195     if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
 196     {
 197       int startsect = vcd_get_msf(vcd);
 198       if (i > tochdr.starting_track)
 199       {
 200         // convert duraion to MSF
 201         vcd_set_msf(vcd, startsect - last_startsect);
 202         mp_msg(MSGT_IDENTIFY, MSGL_INFO,
 203                "ID_VCD_TRACK_%d_MSF=%02d:%02d:%02d\n",
 204                i - 1,
 205                TOCADDR(vcd->entry).msf.minute,
 206                TOCADDR(vcd->entry).msf.second,
 207                TOCADDR(vcd->entry).msf.frame);
 208       }
 209       last_startsect = startsect;
 210     }
 211   }
 212   return vcd;
 213 }
 214
 215 static int
 216 vcd_read(mp_vcd_priv_t* vcd, char *mem)
 217 {
 218 #ifdef VCD_NETBSD
 219   struct scsireq  sc;
 220   int             lba = vcd_get_msf(vcd);
 221   int             blocks;
 222   int             rc;
 223
 224   blocks = 1;
 225
 226   memset(&sc, 0, sizeof(sc));
 227   sc.cmd[0] = 0xBE;
 228   sc.cmd[1] = 5 << 2; // mode2/form2
 229   AV_WB32(&sc.cmd[2], lba);
 230   AV_WB24(&sc.cmd[6], blocks);
 231   sc.cmd[9] = 1 << 4; // user data only
 232   sc.cmd[10] = 0;     // no subchannel
 233   sc.cmdlen = 12;
 234   sc.databuf = (caddr_t) mem;
 235   sc.datalen = VCD_SECTOR_DATA;
 236   sc.senselen = sizeof(sc.sense);
 237   sc.flags = SCCMD_READ;
 238   sc.timeout = 10000;
 239   rc = ioctl(vcd->fd, SCIOCCOMMAND, &sc);
 240   if (rc == -1) {
 241     mp_msg(MSGT_STREAM,MSGL_ERR,"SCIOCCOMMAND: %s\n",strerror(errno));
 242     return -1;
 243   }
 244   if (sc.retsts || sc.error) {
 245     mp_msg(MSGT_STREAM,MSGL_ERR,"scsi command failed: status %d error %d\n",
 246            sc.retsts,sc.error);
 247     return -1;
 248   }
 249 #else
 250   if (pread(vcd->fd,&vcd->buf,VCD_SECTOR_SIZE,vcd_get_msf(vcd)*VCD_SECTOR_SIZE)
 251      != VCD_SECTOR_SIZE) return 0;  // EOF?
 252
 253   memcpy(mem,vcd->buf.data,VCD_SECTOR_DATA);
 254 #endif
 255   vcd_inc_msf(vcd);
 256   return VCD_SECTOR_DATA;
 257 }
 258
 259 #endif /* MPLAYER_VCD_READ_FBSD_H */