stream/stream_dvd.c

   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 #include <ctype.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <unistd.h>
  24 #include <string.h>
  25
  26 #include "config.h"
  27 #include "mp_msg.h"
  28
  29 #include <libgen.h>
  30 #include <errno.h>
  31
  32 #define FIRST_AC3_AID 128
  33 #define FIRST_DTS_AID 136
  34 #define FIRST_MPG_AID 0
  35 #define FIRST_PCM_AID 160
  36
  37 #include "stream.h"
  38 #include "m_option.h"
  39 #include "m_struct.h"
  40
  41 #include "stream_dvd.h"
  42 #include "stream_dvd_common.h"
  43 #include "libmpdemux/demuxer.h"
  44
  45 static char* dvd_device_current;
  46 int dvd_angle=1;
  47
  48 #define LIBDVDREAD_VERSION(maj,min,micro)       ((maj)*10000 + (min)*100 + (micro))
  49 /*
  50  * Try to autodetect the libdvd-0.9.0 library
  51  * (0.9.0 removed the <dvdread/dvd_udf.h> header, and moved the two defines
  52  * DVD_VIDEO_LB_LEN and MAX_UDF_FILE_NAME_LEN from it to
  53  * <dvdread/dvd_reader.h>)
  54  */
  55 #ifndef DVDREAD_VERSION
  56 #if defined(DVD_VIDEO_LB_LEN) && defined(MAX_UDF_FILE_NAME_LEN)
  57 #define DVDREAD_VERSION LIBDVDREAD_VERSION(0,9,0)
  58 #else
  59 #define DVDREAD_VERSION LIBDVDREAD_VERSION(0,8,0)
  60 #endif
  61 #endif
  62
  63
  64 static struct stream_priv_s {
  65   int title;
  66   char* device;
  67 } stream_priv_dflts = {
  68   1,
  69   NULL
  70 };
  71
  72 #define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
  73 /// URL definition
  74 static const m_option_t stream_opts_fields[] = {
  75   { "hostname", ST_OFF(title),  CONF_TYPE_INT, M_OPT_RANGE, 1, 99, NULL},
  76   { "filename", ST_OFF(device), CONF_TYPE_STRING, 0, 0 ,0, NULL},
  77   { NULL, NULL, 0, 0, 0, 0,  NULL }
  78 };
  79 static const struct m_struct_st stream_opts = {
  80   "dvd",
  81   sizeof(struct stream_priv_s),
  82   &stream_priv_dflts,
  83   stream_opts_fields
  84 };
  85
  86 int dvd_chapter_from_cell(dvd_priv_t* dvd,int title,int cell)
  87 {
  88   pgc_t * cur_pgc;
  89   ptt_info_t* ptt;
  90   int chapter = cell;
  91   int pgc_id,pgn;
  92   if(title < 0 || cell < 0){
  93     return 0;
  94   }
  95   /* for most DVD's chapter == cell */
  96   /* but there are more complecated cases... */
  97   if(chapter >= dvd->vmg_file->tt_srpt->title[title].nr_of_ptts) {
  98     chapter = dvd->vmg_file->tt_srpt->title[title].nr_of_ptts-1;
  99   }
 100   title = dvd->tt_srpt->title[title].vts_ttn-1;
 101   ptt = dvd->vts_file->vts_ptt_srpt->title[title].ptt;
 102   while(chapter >= 0) {
 103     pgc_id = ptt[chapter].pgcn;
 104     pgn = ptt[chapter].pgn;
 105     cur_pgc = dvd->vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 106     if(cell >= cur_pgc->program_map[pgn-1]-1) {
 107       return chapter;
 108     }
 109     --chapter;
 110   }
 111   /* didn't find a chapter ??? */
 112   return chapter;
 113 }
 114
 115 int dvd_lang_from_aid(stream_t *stream, int id) {
 116   dvd_priv_t *d;
 117   int i;
 118   if (!stream) return 0;
 119   d = stream->priv;
 120   if (!d) return 0;
 121   for(i=0;i<d->nr_of_channels;i++) {
 122     if(d->audio_streams[i].id==id)
 123       return d->audio_streams[i].language;
 124   }
 125   return 0;
 126 }
 127
 128 int dvd_aid_from_lang(stream_t *stream, char **lang) {
 129   dvd_priv_t *d=stream->priv;
 130   int code,i;
 131   for (int n = 0; lang[n]; n++) {
 132       code = lang[n][1] | (lang[n][0] << 8);
 133       for(i=0;i<d->nr_of_channels;i++) {
 134         if(d->audio_streams[i].language==code) {
 135           mp_tmsg(MSGT_OPEN,MSGL_INFO,"Selected DVD audio channel: %d language: %c%c\n",
 136           d->audio_streams[i].id, lang[n][0], lang[n][1]);
 137           return d->audio_streams[i].id;
 138         }
 139         //printf("%X != %X  (%c%c)\n",code,d->audio_streams[i].language,lang[0],lang[1]);
 140       }
 141   }
 142   mp_tmsg(MSGT_OPEN,MSGL_WARN,"No matching DVD audio language found!\n");
 143   return -1;
 144 }
 145
 146 int dvd_number_of_subs(stream_t *stream) {
 147   int i;
 148   int maxid = -1;
 149   dvd_priv_t *d;
 150   if (!stream) return -1;
 151   d = stream->priv;
 152   if (!d) return -1;
 153   for (i = 0; i < d->nr_of_subtitles; i++)
 154     if (d->subtitles[i].id > maxid) maxid = d->subtitles[i].id;
 155   return maxid + 1;
 156 }
 157
 158 int dvd_lang_from_sid(stream_t *stream, int id) {
 159   int i;
 160   dvd_priv_t *d;
 161   if (!stream) return 0;
 162   d = stream->priv;
 163   if (!d) return 0;
 164   for (i = 0; i < d->nr_of_subtitles; i++)
 165     if (d->subtitles[i].id == id && d->subtitles[i].language) return d->subtitles[i].language;
 166   return 0;
 167 }
 168
 169 int dvd_sid_from_lang(stream_t *stream, char **lang) {
 170   dvd_priv_t *d=stream->priv;
 171   int code,i;
 172   for (int n = 0; lang[n]; n++) {
 173     code = lang[n][1] | (lang[n][0] << 8);
 174     for(i=0;i<d->nr_of_subtitles;i++) {
 175       if(d->subtitles[i].language==code) {
 176         mp_tmsg(MSGT_OPEN,MSGL_INFO,"Selected DVD subtitle channel: %d language: %c%c\n", i, lang[n][0], lang[n][1]);
 177         return d->subtitles[i].id;
 178       }
 179     }
 180   }
 181   mp_tmsg(MSGT_OPEN,MSGL_WARN,"No matching DVD subtitle language found!\n");
 182   return -1;
 183 }
 184
 185 static int dvd_next_cell(dvd_priv_t *d) {
 186   int next_cell=d->cur_cell;
 187
 188   mp_msg(MSGT_DVD,MSGL_DBG2, "dvd_next_cell: next1=0x%X  \n",next_cell);
 189   if( d->cur_pgc->cell_playback[ next_cell ].block_type == BLOCK_TYPE_ANGLE_BLOCK ) {
 190     while(next_cell<d->last_cell) {
 191       if( d->cur_pgc->cell_playback[next_cell].block_mode == BLOCK_MODE_LAST_CELL )
 192         break;
 193       ++next_cell;
 194     }
 195   }
 196   mp_msg(MSGT_DVD,MSGL_DBG2, "dvd_next_cell: next2=0x%X  \n",next_cell);
 197
 198   ++next_cell;
 199   if(next_cell>=d->last_cell)
 200     return -1; // EOF
 201   if(d->cur_pgc->cell_playback[next_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK ) {
 202     next_cell+=dvd_angle;
 203     if(next_cell>=d->last_cell)
 204       return -1; // EOF
 205   }
 206   mp_msg(MSGT_DVD,MSGL_DBG2, "dvd_next_cell: next3=0x%X  \n",next_cell);
 207   return next_cell;
 208 }
 209
 210 static int dvd_read_sector(dvd_priv_t *d, unsigned char *data)
 211 {
 212   int len;
 213
 214   if(d->packs_left==0) {
 215     /**
 216      * If we're not at the end of this cell, we can determine the next
 217      * VOBU to display using the VOBU_SRI information section of the
 218      * DSI.  Using this value correctly follows the current angle,
 219      * avoiding the doubled scenes in The Matrix, and makes our life
 220      * really happy.
 221      *
 222      * Otherwise, we set our next address past the end of this cell to
 223      * force the code above to go to the next cell in the program.
 224      */
 225     if(d->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL) {
 226        d->cur_pack= d->dsi_pack.dsi_gi.nv_pck_lbn + ( d->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
 227        mp_msg(MSGT_DVD,MSGL_DBG2, "Navi  new pos=0x%X  \n",d->cur_pack);
 228     } else {
 229       // end of cell! find next cell!
 230       mp_msg(MSGT_DVD,MSGL_V, "--- END OF CELL !!! ---\n");
 231       d->cur_pack=d->cell_last_pack+1;
 232     }
 233   }
 234
 235 read_next:
 236   if(d->cur_pack>d->cell_last_pack) {
 237     // end of cell!
 238     int next=dvd_next_cell(d);
 239     if(next>=0) {
 240       d->cur_cell=next;
 241       // if( d->cur_pgc->cell_playback[d->cur_cell].block_type
 242       // == BLOCK_TYPE_ANGLE_BLOCK ) d->cur_cell+=dvd_angle;
 243       d->cur_pack = d->cur_pgc->cell_playback[ d->cur_cell ].first_sector;
 244       d->cell_last_pack=d->cur_pgc->cell_playback[ d->cur_cell ].last_sector;
 245       mp_msg(MSGT_DVD,MSGL_V, "DVD next cell: %d  pack: 0x%X-0x%X  \n",d->cur_cell,d->cur_pack,d->cell_last_pack);
 246     } else
 247         return -1; // EOF
 248   }
 249
 250   len = DVDReadBlocks(d->title, d->cur_pack, 1, data);
 251   // only == 0 should indicate an error, but some dvdread version are buggy when used with dvdcss
 252   if(len <= 0) return -1; //error
 253
 254   if(data[38]==0 && data[39]==0 && data[40]==1 && data[41]==0xBF &&
 255     data[1024]==0 && data[1025]==0 && data[1026]==1 && data[1027]==0xBF) {
 256        // found a Navi packet!!!
 257 #if DVDREAD_VERSION >= LIBDVDREAD_VERSION(0,9,0)
 258     navRead_DSI(&d->dsi_pack, &(data[ DSI_START_BYTE ]));
 259 #else
 260     navRead_DSI(&d->dsi_pack, &(data[ DSI_START_BYTE ]), sizeof(dsi_t));
 261 #endif
 262     if(d->cur_pack != d->dsi_pack.dsi_gi.nv_pck_lbn ) {
 263       mp_msg(MSGT_DVD,MSGL_V, "Invalid NAVI packet! lba=0x%X  navi=0x%X  \n",
 264         d->cur_pack,d->dsi_pack.dsi_gi.nv_pck_lbn);
 265     } else {
 266       // process!
 267       d->packs_left = d->dsi_pack.dsi_gi.vobu_ea;
 268       mp_msg(MSGT_DVD,MSGL_DBG2, "Found NAVI packet! lba=0x%X  len=%d  \n",d->cur_pack,d->packs_left);
 269       //navPrint_DSI(&d->dsi_pack);
 270       mp_msg(MSGT_DVD,MSGL_DBG3,"\r### CELL %d: Navi: %d/%d  IFO: %d/%d   \n",d->cur_cell,
 271         d->dsi_pack.dsi_gi.vobu_c_idn,d->dsi_pack.dsi_gi.vobu_vob_idn,
 272         d->cur_pgc->cell_position[d->cur_cell].cell_nr,
 273         d->cur_pgc->cell_position[d->cur_cell].vob_id_nr);
 274
 275       if(d->angle_seek) {
 276         int i,skip=0;
 277 #if defined(__GNUC__) && ( defined(__sparc__) || defined(hpux) )
 278         // workaround for a bug in the sparc/hpux version of gcc 2.95.X ... 3.2,
 279         // it generates incorrect code for unaligned access to a packed
 280         // structure member, resulting in an mplayer crash with a SIGBUS
 281         // signal.
 282         //
 283         // See also gcc problem report PR c/7847:
 284         // http://gcc.gnu.org/cgi-bin/gnatsweb.pl?database=gcc&cmd=view+audit-trail&pr=7847
 285         for(i=0;i<9;i++) {      // check if all values zero:
 286           __typeof__(d->dsi_pack.sml_agli.data[i].address) tmp_addr;
 287           memcpy(&tmp_addr,&d->dsi_pack.sml_agli.data[i].address,sizeof(tmp_addr));
 288           if((skip=tmp_addr)!=0) break;
 289         }
 290 #else
 291         for(i=0;i<9;i++)        // check if all values zero:
 292           if((skip=d->dsi_pack.sml_agli.data[i].address)!=0) break;
 293 #endif
 294         if(skip && skip!=0x7fffffff) {
 295           // sml_agli table has valid data (at least one non-zero):
 296          d->cur_pack=d->dsi_pack.dsi_gi.nv_pck_lbn+
 297          d->dsi_pack.sml_agli.data[dvd_angle].address;
 298          d->angle_seek=0;
 299          d->cur_pack--;
 300          mp_msg(MSGT_DVD,MSGL_V, "Angle-seek synced using sml_agli map!  new_lba=0x%X  \n",d->cur_pack);
 301         } else {
 302           // check if we're in the right cell, jump otherwise:
 303           if( (d->dsi_pack.dsi_gi.vobu_c_idn==d->cur_pgc->cell_position[d->cur_cell].cell_nr) &&
 304             (d->dsi_pack.dsi_gi.vobu_vob_idn==d->cur_pgc->cell_position[d->cur_cell].vob_id_nr) ){
 305             d->angle_seek=0;
 306             mp_msg(MSGT_DVD,MSGL_V, "Angle-seek synced by cell/vob IDN search!  \n");
 307           } else {
 308             // wrong angle, skip this vobu:
 309             d->cur_pack=d->dsi_pack.dsi_gi.nv_pck_lbn+
 310             d->dsi_pack.dsi_gi.vobu_ea;
 311             d->angle_seek=2; // DEBUG
 312           }
 313         }
 314       }
 315     }
 316     ++d->cur_pack;
 317     goto read_next;
 318   }
 319
 320   ++d->cur_pack;
 321   if(d->packs_left>=0) --d->packs_left;
 322
 323   if(d->angle_seek) {
 324     if(d->angle_seek==2) mp_msg(MSGT_DVD,MSGL_V, "!!! warning! reading packet while angle_seek !!!\n");
 325     goto read_next; // searching for Navi packet
 326   }
 327
 328   return d->cur_pack-1;
 329 }
 330
 331 static void dvd_seek(dvd_priv_t *d, int pos)
 332 {
 333   d->packs_left=-1;
 334   d->cur_pack=pos;
 335
 336   // check if we stay in current cell (speedup things, and avoid angle skip)
 337   if(d->cur_pack>d->cell_last_pack ||
 338      d->cur_pack<d->cur_pgc->cell_playback[ d->cur_cell ].first_sector) {
 339
 340     // ok, cell change, find the right cell!
 341     cell_playback_t *cell;
 342     for(d->cur_cell=0; d->cur_cell < d->cur_pgc->nr_of_cells; d->cur_cell++) {
 343       cell = &(d->cur_pgc->cell_playback[d->cur_cell]);
 344       if(cell->block_type == BLOCK_TYPE_ANGLE_BLOCK && cell->block_mode != BLOCK_MODE_FIRST_CELL)
 345         continue;
 346       d->cell_last_pack=cell->last_sector;
 347       if(d->cur_pack<cell->first_sector) {
 348         d->cur_pack=cell->first_sector;
 349         break;
 350       }
 351       if(d->cur_pack<=d->cell_last_pack) break; // ok, we find it! :)
 352     }
 353   }
 354
 355   mp_msg(MSGT_DVD,MSGL_V, "DVD Seek! lba=0x%X  cell=%d  packs: 0x%X-0x%X  \n",
 356     d->cur_pack,d->cur_cell,d->cur_pgc->cell_playback[ d->cur_cell ].first_sector,d->cell_last_pack);
 357
 358   // if we're in interleaved multi-angle cell, find the right angle chain!
 359   // (read Navi block, and use the seamless angle jump table)
 360   d->angle_seek=1;
 361 }
 362
 363 static void dvd_close(dvd_priv_t *d)
 364 {
 365   ifoClose(d->vts_file);
 366   ifoClose(d->vmg_file);
 367   DVDCloseFile(d->title);
 368   DVDClose(d->dvd);
 369   dvd_set_speed(dvd_device_current, -1); /* -1 => restore default */
 370 }
 371
 372 static int fill_buffer(stream_t *s, char *buf, int len)
 373 {
 374   off_t pos;
 375   if (len < 2048)
 376     return -1;
 377   pos = dvd_read_sector(s->priv, buf);
 378   if (pos < 0)
 379     return -1;
 380   s->pos = 2048*(pos - 1);
 381   return 2048; // full sector
 382 }
 383
 384 static int seek(stream_t *s, off_t newpos) {
 385   s->pos=newpos; // real seek
 386   dvd_seek(s->priv,s->pos/2048);
 387   return 1;
 388 }
 389
 390 static void stream_dvd_close(stream_t *s) {
 391   dvd_close(s->priv);
 392 }
 393
 394 static int mp_get_titleset_length(ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no)
 395 {
 396     int vts_ttn;  ///< title number within video title set
 397     int pgc_no;   ///< program chain number
 398     int msec;     ///< time length in milliseconds
 399
 400     msec=0;
 401     if(!vts_file || !tt_srpt)
 402         return 0;
 403
 404     if(vts_file->vtsi_mat && vts_file->vts_pgcit)
 405     {
 406             vts_ttn = tt_srpt->title[title_no].vts_ttn - 1;
 407             pgc_no = vts_file->vts_ptt_srpt->title[vts_ttn].ptt[0].pgcn - 1;
 408             msec = mp_dvdtimetomsec(&vts_file->vts_pgcit->pgci_srp[pgc_no].pgc->playback_time);
 409     }
 410     return msec;
 411 }
 412
 413
 414 static int mp_describe_titleset(dvd_reader_t *dvd, tt_srpt_t *tt_srpt, int vts_no)
 415 {
 416     ifo_handle_t *vts_file;
 417     int title_no, msec=0;
 418
 419     vts_file = ifoOpen(dvd, vts_no);
 420     if(!vts_file)
 421         return 0;
 422
 423     if(!vts_file->vtsi_mat || !vts_file->vts_pgcit)
 424     {
 425         ifoClose(vts_file);
 426         return 0;
 427     }
 428
 429     for(title_no = 0; title_no < tt_srpt->nr_of_srpts; title_no++)
 430     {
 431         if (tt_srpt->title[title_no].title_set_nr != vts_no)
 432             continue;
 433         msec = mp_get_titleset_length(vts_file, tt_srpt, title_no);
 434         mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_DVD_TITLE_%d_LENGTH=%d.%03d\n", title_no + 1, msec / 1000, msec % 1000);
 435     }
 436     ifoClose(vts_file);
 437     return 1;
 438 }
 439
 440 static int get_num_chapter(ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no)
 441 {
 442     if(!vts_file || !tt_srpt)
 443        return 0;
 444
 445     if(title_no < 0 || title_no >= tt_srpt->nr_of_srpts)
 446        return 0;
 447
 448     // map global title to vts title
 449     title_no = tt_srpt->title[title_no].vts_ttn - 1;
 450
 451     if(title_no < 0 || title_no >= vts_file->vts_ptt_srpt->nr_of_srpts)
 452        return 0;
 453
 454     return vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts;
 455 }
 456
 457 static int seek_to_chapter(stream_t *stream, ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no, int chapter)
 458 {
 459     dvd_priv_t *d = stream->priv;
 460     ptt_info_t ptt;
 461     pgc_t *pgc;
 462     off_t pos;
 463
 464     if(!vts_file || !tt_srpt)
 465        return 0;
 466
 467     if(title_no < 0 || title_no >= tt_srpt->nr_of_srpts)
 468        return 0;
 469
 470     // map global title to vts title
 471     title_no = tt_srpt->title[title_no].vts_ttn - 1;
 472
 473     if(title_no < 0 || title_no >= vts_file->vts_ptt_srpt->nr_of_srpts)
 474        return 0;
 475
 476     if(chapter < 0 || chapter > vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts-1) //no such chapter
 477        return 0;
 478
 479     ptt = vts_file->vts_ptt_srpt->title[title_no].ptt[chapter];
 480     pgc = vts_file->vts_pgcit->pgci_srp[ptt.pgcn-1].pgc;
 481
 482     d->cur_cell = pgc->program_map[ptt.pgn - 1] - 1;
 483     if(pgc->cell_playback[d->cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK)
 484        d->cur_cell += dvd_angle;
 485     d->cur_pack       = pgc->cell_playback[d->cur_cell].first_sector;
 486     d->cell_last_pack = pgc->cell_playback[d->cur_cell].last_sector;
 487
 488     d->packs_left     = -1;
 489     d->angle_seek     = 0;
 490
 491     pos = (off_t) d->cur_pack * 2048;
 492     mp_msg(MSGT_OPEN,MSGL_V,"\r\nSTREAM_DVD, seeked to chapter: %d, cell: %u, pos: %"PRIu64"\n",
 493         chapter, d->cur_pack, pos);
 494
 495     return chapter;
 496 }
 497
 498 static void list_chapters(ifo_handle_t *vts_file, tt_srpt_t *tt_srpt, int title_no)
 499 {
 500     unsigned int i, cell, last_cell;
 501     unsigned int t=0;
 502     ptt_info_t *ptt;
 503     pgc_t *pgc;
 504
 505     title_no = tt_srpt->title[title_no].vts_ttn - 1;
 506     if(vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts < 2)
 507        return;
 508     ptt = vts_file->vts_ptt_srpt->title[title_no].ptt;
 509
 510     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "CHAPTERS: ");
 511     for(i=0; i<vts_file->vts_ptt_srpt->title[title_no].nr_of_ptts; i++)
 512     {
 513         pgc = vts_file->vts_pgcit->pgci_srp[ptt[i].pgcn-1].pgc;
 514         cell = pgc->program_map[ptt[i].pgn-1]; //here the cell is 1-based
 515         if(ptt[i].pgn<pgc->nr_of_programs)
 516             last_cell = pgc->program_map[ptt[i].pgn];
 517         else
 518             last_cell = 0;
 519         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "%02d:%02d:%02d.%03d,", t/3600000, (t/60000)%60, (t/1000)%60, t%1000);
 520         do {
 521             if(!(pgc->cell_playback[cell-1].block_type == BLOCK_TYPE_ANGLE_BLOCK &&
 522                  pgc->cell_playback[cell-1].block_mode != BLOCK_MODE_FIRST_CELL)
 523             )
 524                 t += mp_dvdtimetomsec(&pgc->cell_playback[cell-1].playback_time);
 525             cell++;
 526         } while(cell < last_cell);
 527     }
 528     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "\n");
 529 }
 530
 531 static double dvd_get_current_time(stream_t *stream, int cell)
 532 {
 533     int i, tm;
 534     dvd_priv_t *d = stream->priv;
 535
 536     tm=0;
 537     if(cell < 0) cell=d->cur_cell;
 538     for(i=0; i<cell; i++) {
 539         if(d->cur_pgc->cell_playback[i].block_type == BLOCK_TYPE_ANGLE_BLOCK &&
 540            d->cur_pgc->cell_playback[i].block_mode != BLOCK_MODE_FIRST_CELL
 541         )
 542           continue;
 543         tm += d->cell_times_table[i];
 544     }
 545     tm += mp_dvdtimetomsec(&d->dsi_pack.dsi_gi.c_eltm);
 546
 547     return (double)tm/1000.0;
 548 }
 549
 550 static int dvd_seek_to_time(stream_t *stream, ifo_handle_t *vts_file, double sec)
 551 {
 552     unsigned int i, j, k, timeunit, ac_time, tmap_sector=0, cell_sector=0, vobu_sector=0;
 553     int t=0;
 554     double tm, duration;
 555     off_t pos = -1;
 556     dvd_priv_t *d = stream->priv;
 557     vts_tmapt_t *vts_tmapt = vts_file->vts_tmapt;
 558
 559     if(!vts_file->vts_tmapt || sec < 0)
 560         return 0;
 561
 562     duration = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title-1) / 1000.0f;
 563     if(sec > duration)
 564       return 0;
 565
 566     i=d->cur_pgc_idx;
 567     timeunit = vts_tmapt->tmap[i].tmu;
 568     for(j = 0; j < vts_tmapt->tmap[i].nr_of_entries; j++) {
 569       ac_time = timeunit * (j + 1);
 570       if(ac_time >= sec)
 571         break;
 572       tmap_sector = vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff;
 573     }
 574     //search enclosing cell
 575     for(i=0; i<d->cur_pgc->nr_of_cells; i++) {
 576       if(tmap_sector >= d->cur_pgc->cell_playback[i].first_sector && tmap_sector <= d->cur_pgc->cell_playback[i].last_sector) {
 577         cell_sector = d->cur_pgc->cell_playback[i].first_sector;
 578         break;
 579       }
 580     }
 581
 582     pos = ((off_t)cell_sector)<<11;
 583     stream_seek(stream, pos);
 584     do {
 585       stream_skip(stream, 2048);
 586       t = mp_dvdtimetomsec(&d->dsi_pack.dsi_gi.c_eltm);
 587     } while(!t);
 588     tm = dvd_get_current_time(stream, -1);
 589
 590     pos = ((off_t)tmap_sector)<<11;
 591     stream_seek(stream, pos);
 592     //now get current time in terms of the cell+cell time offset
 593     memset(&d->dsi_pack.dsi_gi.c_eltm, 0, sizeof(dvd_time_t));
 594     while(tm <= sec) {
 595         if(!stream_skip(stream, 2048))
 596           break;
 597         tm = dvd_get_current_time(stream, -1);
 598     };
 599     tmap_sector = stream->pos >> 11;
 600
 601     //search closest VOBU sector
 602     k=(vts_file->vts_vobu_admap->last_byte + 1 - VOBU_ADMAP_SIZE)/4; //entries in the vobu admap
 603     for(i=1; i<k; i++) {
 604       if(vts_file->vts_vobu_admap->vobu_start_sectors[i] > tmap_sector)
 605         break;
 606     }
 607     vobu_sector = vts_file->vts_vobu_admap->vobu_start_sectors[i-1];
 608     pos = ((off_t)vobu_sector) << 11;
 609     stream_seek(stream, pos);
 610
 611     return 1;
 612 }
 613
 614 static int control(stream_t *stream,int cmd,void* arg)
 615 {
 616     dvd_priv_t *d = stream->priv;
 617     switch(cmd)
 618     {
 619         case STREAM_CTRL_GET_TIME_LENGTH:
 620         {
 621             *((double *)arg) = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title-1)/1000.0;
 622             return 1;
 623         }
 624         case STREAM_CTRL_GET_NUM_CHAPTERS:
 625         {
 626             int r;
 627             r = get_num_chapter(d->vts_file, d->tt_srpt, d->cur_title-1);
 628             if(! r) return STREAM_UNSUPPORTED;
 629             *((unsigned int *)arg) = r;
 630             return 1;
 631         }
 632         case STREAM_CTRL_SEEK_TO_CHAPTER:
 633         {
 634             int r;
 635             r = seek_to_chapter(stream, d->vts_file, d->tt_srpt, d->cur_title-1, *((unsigned int *)arg));
 636             if(! r) return STREAM_UNSUPPORTED;
 637
 638             return 1;
 639         }
 640         case STREAM_CTRL_GET_CURRENT_CHAPTER:
 641         {
 642             *((unsigned int *)arg) = dvd_chapter_from_cell(d, d->cur_title-1, d->cur_cell);
 643             return 1;
 644         }
 645         case STREAM_CTRL_GET_CURRENT_TIME:
 646         {
 647             double tm;
 648             tm = dvd_get_current_time(stream, -1);
 649             if(tm != -1) {
 650               *((double *)arg) = tm;
 651               return 1;
 652             }
 653             break;
 654         }
 655         case STREAM_CTRL_SEEK_TO_TIME:
 656         {
 657             if(dvd_seek_to_time(stream, d->vts_file, *((double*)arg)))
 658               return 1;
 659             break;
 660         }
 661         case STREAM_CTRL_GET_ASPECT_RATIO:
 662         {
 663             *((double *)arg) = !d->vts_file->vtsi_mat->vts_video_attr.display_aspect_ratio ? 4.0/3.0 : 16.0/9.0;
 664             return 1;
 665         }
 666         case STREAM_CTRL_GET_NUM_ANGLES:
 667         {
 668             *((int *)arg) = d->vmg_file->tt_srpt->title[dvd_title].nr_of_angles;
 669             return 1;
 670         }
 671         case STREAM_CTRL_GET_ANGLE:
 672         {
 673             *((int *)arg) = dvd_angle+1;
 674             return 1;
 675         }
 676         case STREAM_CTRL_SET_ANGLE:
 677         {
 678             int ang = *((int *)arg);
 679             if(ang>d->vmg_file->tt_srpt->title[dvd_title].nr_of_angles || ang<=0)
 680                 break;
 681             dvd_angle = ang - 1;
 682             d->angle_seek = 1;
 683             return 1;
 684         }
 685     }
 686     return STREAM_UNSUPPORTED;
 687 }
 688
 689
 690 static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
 691   struct stream_priv_s* p = (struct stream_priv_s*)opts;
 692   int k;
 693
 694   mp_msg(MSGT_OPEN,MSGL_V,"URL: %s\n", stream->url);
 695   dvd_title = p->title;
 696   if(1){
 697     //int ret,ret2;
 698     dvd_priv_t *d;
 699     int ttn,pgc_id,pgn;
 700     dvd_reader_t *dvd;
 701     dvd_file_t *title;
 702     ifo_handle_t *vmg_file;
 703     tt_srpt_t *tt_srpt;
 704     ifo_handle_t *vts_file;
 705     pgc_t *pgc;
 706     /**
 707      * Open the disc.
 708      */
 709     if(p->device)
 710       dvd_device_current = p->device;
 711     else if(dvd_device)
 712       dvd_device_current = dvd_device;
 713     else
 714       dvd_device_current = DEFAULT_DVD_DEVICE;
 715     dvd_set_speed(dvd_device_current, dvd_speed);
 716 #if defined(__APPLE__) || defined(__DARWIN__)
 717     /* Dynamic DVD drive selection on Darwin */
 718     if(!strcmp(dvd_device_current, "/dev/rdiskN")) {
 719       int i;
 720       size_t len = strlen(dvd_device_current)+1;
 721       char *temp_device = malloc(len);
 722
 723       for (i = 1; i < 10; i++) {
 724         snprintf(temp_device, len, "/dev/rdisk%d", i);
 725         dvd = DVDOpen(temp_device);
 726         if(!dvd) {
 727           mp_tmsg(MSGT_OPEN,MSGL_ERR,"Couldn't open DVD device: %s (%s)\n",temp_device, strerror(errno));
 728         } else {
 729 #if DVDREAD_VERSION <= LIBDVDREAD_VERSION(0,9,4)
 730           dvd_file_t *dvdfile = DVDOpenFile(dvd,dvd_title,DVD_READ_INFO_FILE);
 731           if(!dvdfile) {
 732             mp_tmsg(MSGT_OPEN,MSGL_ERR,"Couldn't open DVD device: %s (%s)\n",temp_device, strerror(errno));
 733             DVDClose(dvd);
 734             continue;
 735           }
 736           DVDCloseFile(dvdfile);
 737 #endif
 738           break;
 739         }
 740       }
 741       free(temp_device);
 742
 743       if(!dvd) {
 744         m_struct_free(&stream_opts,opts);
 745         return STREAM_UNSUPPORTED;
 746       }
 747     } else
 748 #endif /* defined(__APPLE__) || defined(__DARWIN__) */
 749     {
 750         dvd = DVDOpen(dvd_device_current);
 751         if(!dvd) {
 752           mp_tmsg(MSGT_OPEN,MSGL_ERR,"Couldn't open DVD device: %s (%s)\n",dvd_device_current, strerror(errno));
 753           m_struct_free(&stream_opts,opts);
 754           return STREAM_UNSUPPORTED;
 755         }
 756     }
 757
 758     mp_msg(MSGT_OPEN,MSGL_V,"Reading disc structure, please wait...\n");
 759
 760     /**
 761      * Load the video manager to find out the information about the titles on
 762      * this disc.
 763      */
 764     vmg_file = ifoOpen(dvd, 0);
 765     if(!vmg_file) {
 766       mp_tmsg(MSGT_OPEN,MSGL_ERR, "Can't open VMG info!\n");
 767       DVDClose( dvd );
 768       m_struct_free(&stream_opts,opts);
 769       return STREAM_UNSUPPORTED;
 770     }
 771     tt_srpt = vmg_file->tt_srpt;
 772     if (mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
 773     {
 774       int title_no; ///< title number
 775       mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_TITLES=%d\n", tt_srpt->nr_of_srpts);
 776       for (title_no = 0; title_no < tt_srpt->nr_of_srpts; title_no++)
 777       {
 778         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_TITLE_%d_CHAPTERS=%d\n", title_no + 1, tt_srpt->title[title_no].nr_of_ptts);
 779         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_TITLE_%d_ANGLES=%d\n", title_no + 1, tt_srpt->title[title_no].nr_of_angles);
 780       }
 781     }
 782     if (mp_msg_test(MSGT_IDENTIFY, MSGL_V))
 783     {
 784       char volid[32];
 785       unsigned char discid [16]; ///< disk ID, a 128 bit MD5 sum
 786       int vts_no;   ///< video title set number
 787       for (vts_no = 1; vts_no <= vmg_file->vts_atrt->nr_of_vtss; vts_no++)
 788         mp_describe_titleset(dvd, tt_srpt, vts_no);
 789       if (DVDDiscID(dvd, discid) >= 0)
 790       {
 791         int i;
 792         mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_DVD_DISC_ID=");
 793         for (i = 0; i < 16; i ++)
 794           mp_msg(MSGT_IDENTIFY, MSGL_V, "%02X", discid[i]);
 795         mp_msg(MSGT_IDENTIFY, MSGL_V, "\n");
 796       }
 797       if (DVDUDFVolumeInfo(dvd, volid, sizeof(volid), NULL, 0) >= 0 || DVDISOVolumeInfo(dvd, volid, sizeof(volid), NULL, 0) >= 0)
 798         mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_DVD_VOLUME_ID=%s\n", volid);
 799     }
 800     /**
 801      * Make sure our title number is valid.
 802      */
 803     mp_tmsg(MSGT_OPEN,MSGL_STATUS, "There are %d titles on this DVD.\n", tt_srpt->nr_of_srpts );
 804     if(dvd_title < 1 || dvd_title > tt_srpt->nr_of_srpts) {
 805       mp_tmsg(MSGT_OPEN,MSGL_ERR, "Invalid DVD title number: %d\n", dvd_title);
 806       ifoClose( vmg_file );
 807       DVDClose( dvd );
 808       m_struct_free(&stream_opts,opts);
 809       return STREAM_UNSUPPORTED;
 810     }
 811     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_DVD_CURRENT_TITLE=%d\n", dvd_title);
 812     --dvd_title; // remap 1.. -> 0..
 813     /**
 814      * Make sure the angle number is valid for this title.
 815      */
 816     mp_tmsg(MSGT_OPEN,MSGL_STATUS, "There are %d angles in this DVD title.\n", tt_srpt->title[dvd_title].nr_of_angles);
 817     if(dvd_angle<1 || dvd_angle>tt_srpt->title[dvd_title].nr_of_angles) {
 818       mp_tmsg(MSGT_OPEN,MSGL_ERR, "Invalid DVD angle number: %d\n", dvd_angle);
 819       goto fail;
 820     }
 821     --dvd_angle; // remap 1.. -> 0..
 822
 823     ttn = tt_srpt->title[dvd_title].vts_ttn - 1;
 824     /**
 825      * Load the VTS information for the title set our title is in.
 826      */
 827     vts_file = ifoOpen( dvd, tt_srpt->title[dvd_title].title_set_nr );
 828     if(!vts_file) {
 829       mp_tmsg(MSGT_OPEN,MSGL_ERR, "Cannot open the IFO file for DVD title %d.\n", tt_srpt->title[dvd_title].title_set_nr );
 830       goto fail;
 831     }
 832     /**
 833      * We've got enough info, time to open the title set data.
 834      */
 835     title = DVDOpenFile(dvd, tt_srpt->title[dvd_title].title_set_nr, DVD_READ_TITLE_VOBS);
 836     if(!title) {
 837       mp_tmsg(MSGT_OPEN,MSGL_ERR, "Cannot open title VOBS (VTS_%02d_1.VOB).\n", tt_srpt->title[dvd_title].title_set_nr);
 838       ifoClose( vts_file );
 839       goto fail;
 840     }
 841
 842     mp_msg(MSGT_OPEN,MSGL_V, "DVD successfully opened.\n");
 843     // store data
 844     d=malloc(sizeof(dvd_priv_t)); memset(d,0,sizeof(dvd_priv_t));
 845     d->dvd=dvd;
 846     d->title=title;
 847     d->vmg_file=vmg_file;
 848     d->tt_srpt=tt_srpt;
 849     d->vts_file=vts_file;
 850     d->cur_title = dvd_title+1;
 851
 852     pgc = vts_file->vts_pgcit ? vts_file->vts_pgcit->pgci_srp[ttn].pgc : NULL;
 853     /**
 854      * Check number of audio channels and types
 855      */
 856     {
 857       d->nr_of_channels=0;
 858       if(vts_file->vts_pgcit) {
 859         int i;
 860         for(i=0;i<8;i++)
 861           if(pgc->audio_control[i] & 0x8000) {
 862             audio_attr_t * audio = &vts_file->vtsi_mat->vts_audio_attr[i];
 863             int language = 0;
 864             char tmp[] = "unknown";
 865             stream_language_t *audio_stream = &d->audio_streams[d->nr_of_channels];
 866
 867             if(audio->lang_type == 1) {
 868               language=audio->lang_code;
 869               tmp[0]=language>>8;
 870               tmp[1]=language&0xff;
 871               tmp[2]=0;
 872             }
 873
 874             audio_stream->language=language;
 875             audio_stream->id=pgc->audio_control[i] >> 8 & 7;
 876             switch(audio->audio_format) {
 877               case 0: // ac3
 878                 audio_stream->id+=FIRST_AC3_AID;
 879                 break;
 880               case 6: // dts
 881                 audio_stream->id+=FIRST_DTS_AID;
 882                 break;
 883               case 2: // mpeg layer 1/2/3
 884               case 3: // mpeg2 ext
 885                 audio_stream->id+=FIRST_MPG_AID;
 886                 break;
 887               case 4: // lpcm
 888                 audio_stream->id+=FIRST_PCM_AID;
 889                 break;
 890            }
 891
 892            audio_stream->type=audio->audio_format;
 893            // Pontscho: to my mind, tha channels:
 894            //  1 - stereo
 895            //  5 - 5.1
 896            audio_stream->channels=audio->channels;
 897            mp_tmsg(MSGT_OPEN,MSGL_STATUS,"audio stream: %d format: %s (%s) language: %s aid: %d.\n",
 898              d->nr_of_channels,
 899              dvd_audio_stream_types[ audio->audio_format ],
 900              dvd_audio_stream_channels[ audio->channels ],
 901              tmp,
 902              audio_stream->id
 903            );
 904            mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_ID=%d\n", audio_stream->id);
 905            if(language && tmp[0])
 906              mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", audio_stream->id, tmp);
 907
 908            d->nr_of_channels++;
 909          }
 910       }
 911       mp_tmsg(MSGT_OPEN,MSGL_STATUS,"number of audio channels on disk: %d.\n",d->nr_of_channels );
 912     }
 913
 914     /**
 915      * Check number of subtitles and language
 916      */
 917     {
 918       int i;
 919
 920       d->nr_of_subtitles=0;
 921       for(i=0;i<32;i++)
 922       if(pgc->subp_control[i] & 0x80000000) {
 923         subp_attr_t * subtitle = &vts_file->vtsi_mat->vts_subp_attr[i];
 924         video_attr_t *video = &vts_file->vtsi_mat->vts_video_attr;
 925         int language = 0;
 926         char tmp[] = "unknown";
 927         stream_language_t *sub_stream = &d->subtitles[d->nr_of_subtitles];
 928
 929         if(subtitle->type == 1) {
 930           language=subtitle->lang_code;
 931           tmp[0]=language>>8;
 932           tmp[1]=language&0xff;
 933           tmp[2]=0;
 934         }
 935
 936         sub_stream->language=language;
 937         sub_stream->id=d->nr_of_subtitles;
 938         if(video->display_aspect_ratio == 0) /* 4:3 */
 939           sub_stream->id = pgc->subp_control[i] >> 24 & 31;
 940         else if(video->display_aspect_ratio == 3) /* 16:9 */
 941           sub_stream->id = pgc->subp_control[i] >> 8 & 31;
 942
 943         mp_tmsg(MSGT_OPEN,MSGL_STATUS,"subtitle ( sid ): %d language: %s\n", sub_stream->id, tmp);
 944         mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SUBTITLE_ID=%d\n", sub_stream->id);
 945         if(language && tmp[0])
 946           mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", sub_stream->id, tmp);
 947         d->nr_of_subtitles++;
 948       }
 949       mp_tmsg(MSGT_OPEN,MSGL_STATUS,"number of subtitles on disk: %d\n",d->nr_of_subtitles);
 950     }
 951
 952     /**
 953      * Determine which program chain we want to watch.  This is based on the
 954      * chapter number.
 955      */
 956     pgc_id = vts_file->vts_ptt_srpt->title[ttn].ptt[0].pgcn; // local
 957     pgn  = vts_file->vts_ptt_srpt->title[ttn].ptt[0].pgn;  // local
 958     d->cur_pgc_idx = pgc_id-1;
 959     d->cur_pgc = vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 960     d->cur_cell = d->cur_pgc->program_map[pgn-1] - 1; // start playback here
 961     d->packs_left=-1;      // for Navi stuff
 962     d->angle_seek=0;
 963       d->last_cell=d->cur_pgc->nr_of_cells;
 964
 965     if(d->cur_pgc->cell_playback[d->cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
 966       d->cur_cell+=dvd_angle;
 967     d->cur_pack = d->cur_pgc->cell_playback[ d->cur_cell ].first_sector;
 968     d->cell_last_pack=d->cur_pgc->cell_playback[ d->cur_cell ].last_sector;
 969     mp_msg(MSGT_DVD,MSGL_V, "DVD start cell: %d  pack: 0x%X-0x%X  \n",d->cur_cell,d->cur_pack,d->cell_last_pack);
 970
 971     //assign cell_times_table
 972     d->cell_times_table = malloc(sizeof(unsigned int) * d->cur_pgc->nr_of_cells);
 973     if(d->cell_times_table == NULL)
 974       return STREAM_UNSUPPORTED;
 975     for(k=0; k<d->cur_pgc->nr_of_cells; k++)
 976       d->cell_times_table[k] = mp_dvdtimetomsec(&d->cur_pgc->cell_playback[k].playback_time);
 977     list_chapters(vts_file,tt_srpt,dvd_title);
 978
 979     // ... (unimplemented)
 980     //    return NULL;
 981     stream->type = STREAMTYPE_DVD;
 982     stream->sector_size = 2048;
 983     stream->flags = STREAM_READ | MP_STREAM_SEEK;
 984     stream->fill_buffer = fill_buffer;
 985     stream->seek = seek;
 986     stream->control = control;
 987     stream->close = stream_dvd_close;
 988     stream->start_pos = (off_t)d->cur_pack*2048;
 989     stream->end_pos = (off_t)(d->cur_pgc->cell_playback[d->last_cell-1].last_sector)*2048;
 990     *file_format = DEMUXER_TYPE_MPEG_PS;
 991     mp_msg(MSGT_DVD,MSGL_V,"DVD start=%d end=%d  \n",d->cur_pack,d->cur_pgc->cell_playback[d->last_cell-1].last_sector);
 992     stream->priv = (void*)d;
 993     return STREAM_OK;
 994
 995 fail:
 996       ifoClose(vmg_file);
 997       DVDClose(dvd);
 998       m_struct_free(&stream_opts, opts);
 999       return STREAM_UNSUPPORTED;
1000   }
1001   mp_tmsg(MSGT_DVD,MSGL_ERR,"MPlayer was compiled without DVD support, exiting.\n");
1002   m_struct_free(&stream_opts,opts);
1003   return STREAM_UNSUPPORTED;
1004 }
1005
1006 static int ifo_stream_open (stream_t *stream, int mode, void *opts, int *file_format)
1007 {
1008     char* filename;
1009     struct stream_priv_s *spriv;
1010     int len = strlen(stream->url);
1011
1012     if (len < 4 || strcasecmp (stream->url + len - 4, ".ifo"))
1013         return STREAM_UNSUPPORTED;
1014
1015     mp_msg(MSGT_DVD, MSGL_INFO, ".IFO detected. Redirecting to dvd://\n");
1016
1017     filename = strdup(basename(stream->url));
1018
1019     spriv=calloc(1, sizeof(struct stream_priv_s));
1020     spriv->device = strdup(dirname(stream->url));
1021     if(!strncasecmp(filename,"vts_",4))
1022     {
1023         if(sscanf(filename+3, "_%02d_", &spriv->title)!=1)
1024             spriv->title=1;
1025     }else
1026         spriv->title=1;
1027
1028     free(filename);
1029     free(stream->url);
1030     stream->url=strdup("dvd://");
1031
1032     return open_s(stream, mode, spriv, file_format);
1033 }
1034
1035 const stream_info_t stream_info_dvd = {
1036   "DVD stream",
1037   "null",
1038   "",
1039   "",
1040   open_s,
1041   { "dvd", NULL },
1042   &stream_opts,
1043   1 // Urls are an option string
1044 };
1045
1046 const stream_info_t stream_info_ifo = {
1047   "DVD IFO input",
1048   "ifo",
1049   "Benjamin Zores",
1050   "Mostly used to play DVDs on disk through OSD Menu",
1051   ifo_stream_open,
1052   { "file", "", NULL },
1053   NULL,
1054   0
1055 };