git.sesse.net Git - vlc/blob - plugins/dvd/input_dvd.c

   1 /*****************************************************************************
   2  * input_dvd.c: DVD raw reading plugin.
   3  * ---
   4  * This plugins should handle all the known specificities of the DVD format,
   5  * especially the 2048 bytes logical block size.
   6  * It depends on:
   7  *  -input_netlist used to read packets
   8  *  -dvd_ifo for ifo parsing and analyse
   9  *  -dvd_css for unscrambling
  10  *  -dvd_udf to find files
  11  *****************************************************************************
  12  * Copyright (C) 1998-2001 VideoLAN
  13  * $Id: input_dvd.c,v 1.48 2001/04/20 05:40:03 stef Exp $
  14  *
  15  * Author: Stéphane Borel <stef@via.ecp.fr>
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2 of the License, or
  20  * (at your option) any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  30  *****************************************************************************/
  31
  32 /*****************************************************************************
  33  * Preamble
  34  *****************************************************************************/
  35 #include "defs.h"
  36
  37 #ifdef HAVE_CSS
  38 #define MODULE_NAME dvd
  39 #else /* HAVE_CSS */
  40 #define MODULE_NAME dvdnocss
  41 #endif /* HAVE_CSS */
  42 #include "modules_inner.h"
  43
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <unistd.h>
  47 #include <netinet/in.h>
  48
  49 #include <fcntl.h>
  50 #include <sys/types.h>
  51 #include <sys/uio.h>
  52
  53 #include <string.h>
  54 #include <errno.h>
  55
  56 #include "config.h"
  57 #include "common.h"
  58 #include "threads.h"
  59 #include "mtime.h"
  60 #include "tests.h"
  61
  62 #include "intf_msg.h"
  63
  64 #include "main.h"
  65
  66 #include "stream_control.h"
  67 #include "input_ext-intf.h"
  68 #include "input_ext-dec.h"
  69
  70 #include "input.h"
  71
  72 #include "dvd_netlist.h"
  73 #include "dvd_ifo.h"
  74 #include "dvd_css.h"
  75 #include "input_dvd.h"
  76 #include "mpeg_system.h"
  77
  78 #include "debug.h"
  79
  80 #include "modules.h"
  81
  82 /*****************************************************************************
  83  * Local tables
  84  *****************************************************************************/
  85 static struct
  86 {
  87     char    p_code[3];
  88     char    p_lang_long[20];
  89 }
  90
  91 lang_tbl[] =
  92 {
  93     /* The ISO 639 language codes.
  94      * Language names with * prefix are not spelled in their own language
  95      */
  96     { "  ", "Not Specified" },
  97     { "aa", "*Afar" },
  98     { "ab", "*Abkhazian" },
  99     { "af", "*Afrikaans" },
 100     { "am", "*Amharic" },
 101     { "ar", "*Arabic" },
 102     { "as", "*Assamese" },
 103     { "ay", "*Aymara" },
 104     { "az", "*Azerbaijani" },
 105     { "ba", "*Bashkir" },
 106     { "be", "*Byelorussian" },
 107     { "bg", "*Bulgarian" },
 108     { "bh", "*Bihari" },
 109     { "bi", "*Bislama" },
 110     { "bn", "*Bengali; Bangla" },
 111     { "bo", "*Tibetan" },
 112     { "br", "*Breton" },
 113     { "ca", "*Catalan" },
 114     { "co", "*Corsican" },
 115     { "cs", "*Czech(Ceske)" },
 116     { "cy", "*Welsh" },
 117     { "da", "Dansk" },
 118     { "de", "Deutsch" },
 119     { "dz", "*Bhutani" },
 120     { "el", "*Greek" },
 121     { "en", "English" },
 122     { "eo", "*Esperanto" },
 123     { "es", "Espanol" },
 124     { "et", "*Estonian" },
 125     { "eu", "*Basque" },
 126     { "fa", "*Persian" },
 127     { "fi", "Suomi" },
 128     { "fj", "*Fiji" },
 129     { "fo", "*Faroese" },
 130     { "fr", "Francais" },
 131     { "fy", "*Frisian" },
 132     { "ga", "*Irish" },
 133     { "gd", "*Scots Gaelic" },
 134     { "gl", "*Galician" },
 135     { "gn", "*Guarani" },
 136     { "gu", "*Gujarati" },
 137     { "ha", "*Hausa" },
 138     { "he", "*Hebrew" },                                      /* formerly iw */
 139     { "hi", "*Hindi" },
 140     { "hr", "Hrvatski" },                                        /* Croatian */
 141     { "hu", "Magyar" },
 142     { "hy", "*Armenian" },
 143     { "ia", "*Interlingua" },
 144     { "id", "*Indonesian" },                                  /* formerly in */
 145     { "ie", "*Interlingue" },
 146     { "ik", "*Inupiak" },
 147     { "in", "*Indonesian" },                               /* replaced by id */
 148     { "is", "Islenska" },
 149     { "it", "Italiano" },
 150     { "iu", "*Inuktitut" },
 151     { "iw", "*Hebrew" },                                   /* replaced by he */
 152     { "ja", "*Japanese" },
 153     { "ji", "*Yiddish" },                                  /* replaced by yi */
 154     { "jw", "*Javanese" },
 155     { "ka", "*Georgian" },
 156     { "kk", "*Kazakh" },
 157     { "kl", "*Greenlandic" },
 158     { "km", "*Cambodian" },
 159     { "kn", "*Kannada" },
 160     { "ko", "*Korean" },
 161     { "ks", "*Kashmiri" },
 162     { "ku", "*Kurdish" },
 163     { "ky", "*Kirghiz" },
 164     { "la", "*Latin" },
 165     { "ln", "*Lingala" },
 166     { "lo", "*Laothian" },
 167     { "lt", "*Lithuanian" },
 168     { "lv", "*Latvian, Lettish" },
 169     { "mg", "*Malagasy" },
 170     { "mi", "*Maori" },
 171     { "mk", "*Macedonian" },
 172     { "ml", "*Malayalam" },
 173     { "mn", "*Mongolian" },
 174     { "mo", "*Moldavian" },
 175     { "mr", "*Marathi" },
 176     { "ms", "*Malay" },
 177     { "mt", "*Maltese" },
 178     { "my", "*Burmese" },
 179     { "na", "*Nauru" },
 180     { "ne", "*Nepali" },
 181     { "nl", "Nederlands" },
 182     { "no", "Norsk" },
 183     { "oc", "*Occitan" },
 184     { "om", "*(Afan) Oromo" },
 185     { "or", "*Oriya" },
 186     { "pa", "*Punjabi" },
 187     { "pl", "*Polish" },
 188     { "ps", "*Pashto, Pushto" },
 189     { "pt", "Portugues" },
 190     { "qu", "*Quechua" },
 191     { "rm", "*Rhaeto-Romance" },
 192     { "rn", "*Kirundi" },
 193     { "ro", "*Romanian"  },
 194     { "ru", "*Russian" },
 195     { "rw", "*Kinyarwanda" },
 196     { "sa", "*Sanskrit" },
 197     { "sd", "*Sindhi" },
 198     { "sg", "*Sangho" },
 199     { "sh", "*Serbo-Croatian" },
 200     { "si", "*Sinhalese" },
 201     { "sk", "*Slovak" },
 202     { "sl", "*Slovenian" },
 203     { "sm", "*Samoan" },
 204     { "sn", "*Shona"  },
 205     { "so", "*Somali" },
 206     { "sq", "*Albanian" },
 207     { "sr", "*Serbian" },
 208     { "ss", "*Siswati" },
 209     { "st", "*Sesotho" },
 210     { "su", "*Sundanese" },
 211     { "sv", "Svenska" },
 212     { "sw", "*Swahili" },
 213     { "ta", "*Tamil" },
 214     { "te", "*Telugu" },
 215     { "tg", "*Tajik" },
 216     { "th", "*Thai" },
 217     { "ti", "*Tigrinya" },
 218     { "tk", "*Turkmen" },
 219     { "tl", "*Tagalog" },
 220     { "tn", "*Setswana" },
 221     { "to", "*Tonga" },
 222     { "tr", "*Turkish" },
 223     { "ts", "*Tsonga" },
 224     { "tt", "*Tatar" },
 225     { "tw", "*Twi" },
 226     { "ug", "*Uighur" },
 227     { "uk", "*Ukrainian" },
 228     { "ur", "*Urdu" },
 229     { "uz", "*Uzbek" },
 230     { "vi", "*Vietnamese" },
 231     { "vo", "*Volapuk" },
 232     { "wo", "*Wolof" },
 233     { "xh", "*Xhosa" },
 234     { "yi", "*Yiddish" },                                     /* formerly ji */
 235     { "yo", "*Yoruba" },
 236     { "za", "*Zhuang" },
 237     { "zh", "*Chinese" },
 238     { "zu", "*Zulu" },
 239     { "\0", "" }
 240 };
 241
 242 /*****************************************************************************
 243  * Local prototypes
 244  *****************************************************************************/
 245 static int  DVDProbe    ( probedata_t *p_data );
 246 static int  DVDRead     ( struct input_thread_s *, data_packet_t ** );
 247 static void DVDInit     ( struct input_thread_s * );
 248 static void DVDEnd      ( struct input_thread_s * );
 249 static void DVDSeek     ( struct input_thread_s *, off_t );
 250 static int  DVDSetArea  ( struct input_thread_s *, struct input_area_s * );
 251 static int  DVDRewind   ( struct input_thread_s * );
 252
 253 /*****************************************************************************
 254  * Functions exported as capabilities. They are declared as static so that
 255  * we don't pollute the namespace too much.
 256  *****************************************************************************/
 257 void _M( input_getfunctions )( function_list_t * p_function_list )
 258 {
 259 #define input p_function_list->functions.input
 260     p_function_list->pf_probe = DVDProbe;
 261     input.pf_init             = DVDInit;
 262     input.pf_open             = input_FileOpen;
 263     input.pf_close            = input_FileClose;
 264     input.pf_end              = DVDEnd;
 265     input.pf_read             = DVDRead;
 266     input.pf_set_area         = DVDSetArea;
 267     input.pf_demux            = input_DemuxPS;
 268     input.pf_new_packet       = DVDNewPacket;
 269     input.pf_new_pes          = DVDNewPES;
 270     input.pf_delete_packet    = DVDDeletePacket;
 271     input.pf_delete_pes       = DVDDeletePES;
 272     input.pf_rewind           = DVDRewind;
 273     input.pf_seek             = DVDSeek;
 274 #undef input
 275 }
 276
 277 /*
 278  * Local tools to decode some data in ifo
 279  */
 280
 281 /*****************************************************************************
 282  * Language: gives the long language name from the two-letters ISO-639 code
 283  *****************************************************************************/
 284 static char * Language( u16 i_code )
 285 {
 286     int     i = 0;
 287
 288     while( memcmp( lang_tbl[i].p_code, &i_code, 2 ) &&
 289            lang_tbl[i].p_lang_long[0] )
 290     {
 291         i++;
 292     }
 293
 294     return lang_tbl[i].p_lang_long;
 295 }
 296
 297 /*
 298  * Data reading functions
 299  */
 300
 301 /*****************************************************************************
 302  * DVDProbe: verifies that the stream is a PS stream
 303  *****************************************************************************/
 304 static int DVDProbe( probedata_t *p_data )
 305 {
 306     input_thread_t * p_input = (input_thread_t *)p_data;
 307
 308     char * psz_name = p_input->p_source;
 309     int i_handle;
 310     int i_score = 5;
 311
 312     if( TestMethod( INPUT_METHOD_VAR, "dvd" ) )
 313     {
 314 #ifdef HAVE_CSS
 315         return( 999 );
 316 #else /* HAVE_CSS */
 317         return( 998 );
 318 #endif /* HAVE_CSS */
 319     }
 320
 321     if( ( strlen(psz_name) > 4 ) && !strncasecmp( psz_name, "dvd:", 4 ) )
 322     {
 323         /* If the user specified "dvd:" then it's probably a DVD */
 324 #ifdef HAVE_CSS
 325         i_score = 100;
 326 #else /* HAVE_CSS */
 327         i_score = 90;
 328 #endif /* HAVE_CSS */
 329         psz_name += 4;
 330     }
 331
 332     i_handle = open( psz_name, 0 );
 333     if( i_handle == -1 )
 334     {
 335         return( 0 );
 336     }
 337     close( i_handle );
 338
 339     return( i_score );
 340 }
 341
 342 /*****************************************************************************
 343  * DVDFindCell: adjust the title cell index with the program cell
 344  *****************************************************************************/
 345 static int DVDFindCell( thread_dvd_data_t * p_dvd )
 346 {
 347     int                 i_cell;
 348     int                 i_index;
 349
 350 #define title \
 351         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 352 #define cell  p_dvd->p_ifo->vts.cell_inf
 353
 354     i_cell = p_dvd->i_cell;
 355     i_index = p_dvd->i_prg_cell;
 356
 357     if( i_cell >= cell.i_cell_nb )
 358     {
 359         return -1;
 360     }
 361
 362
 363     while( ( ( title.p_cell_pos[i_index].i_vob_id !=
 364                    cell.p_cell_map[i_cell].i_vob_id ) ||
 365       ( title.p_cell_pos[i_index].i_cell_id !=
 366                    cell.p_cell_map[i_cell].i_cell_id ) ) &&
 367            ( i_cell < cell.i_cell_nb - 1 ) )
 368     {
 369         i_cell++;
 370     }
 371
 372 intf_WarnMsg( 1, "FindCell: i_cell %d i_index %d found %d nb %d",
 373                     p_dvd->i_cell,
 374                     p_dvd->i_prg_cell,
 375                     i_cell,
 376                     cell.i_cell_nb );
 377
 378     p_dvd->i_cell = i_cell;
 379     return 0;
 380
 381 #undef title
 382 #undef cell
 383 }
 384
 385 /*****************************************************************************
 386  * DVDFindSector: find cell index in adress map from index in
 387  * information table program map and give corresponding sectors.
 388  *****************************************************************************/
 389 static int DVDFindSector( thread_dvd_data_t * p_dvd )
 390 {
 391 #define title \
 392         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 393
 394     if( p_dvd->i_sector > title.p_cell_play[p_dvd->i_prg_cell].i_end_sector )
 395     {
 396         p_dvd->i_prg_cell++;
 397
 398         /* basic handling of angles */
 399         switch( ( ( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
 400                     >> 12 ) )
 401         {
 402         case 0x5:
 403             p_dvd->i_prg_cell += p_dvd->i_angle - 1;
 404             intf_WarnMsg( 1, "dvd info: choosing angle %d", p_dvd->i_angle );
 405             break;
 406         case 0x9:
 407         case 0xd:
 408             p_dvd->i_prg_cell += p_dvd->i_angle_nb - p_dvd->i_angle;
 409             break;
 410         }
 411     }
 412
 413     if( DVDFindCell( p_dvd ) < 0 )
 414     {
 415         intf_ErrMsg( "dvd error: can't find sector" );
 416         return -1;
 417     }
 418
 419     /* Find start and end sectors of new cell */
 420     p_dvd->i_sector = MAX(
 421          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
 422          title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
 423     p_dvd->i_end_sector = MIN(
 424          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
 425          title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
 426
 427     intf_WarnMsg( 1, "cell: %d sector1: 0x%x end1: 0x%x\n"
 428                    "index: %d sector2: 0x%x end2: 0x%x\n"
 429                    "category: 0x%x ilvu end: 0x%x vobu start 0x%x",
 430         p_dvd->i_cell,
 431         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
 432         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
 433         p_dvd->i_prg_cell,
 434         title.p_cell_play[p_dvd->i_prg_cell].i_start_sector,
 435         title.p_cell_play[p_dvd->i_prg_cell].i_end_sector,
 436         title.p_cell_play[p_dvd->i_prg_cell].i_category,
 437         title.p_cell_play[p_dvd->i_prg_cell].i_first_ilvu_vobu_esector,
 438         title.p_cell_play[p_dvd->i_prg_cell].i_last_vobu_start_sector );
 439
 440 #undef title
 441
 442     return 0;
 443 }
 444
 445 /*****************************************************************************
 446  * DVDChapterSelect: find the cell corresponding to requested chapter
 447  *****************************************************************************/
 448 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
 449 {
 450 #define title \
 451         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 452
 453     /* Find cell index in Program chain for current chapter */
 454     p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
 455     p_dvd->i_cell = 0;
 456     p_dvd->i_sector = 0;
 457
 458     /* Search for cell_index in cell adress_table and initialize start sector */
 459     if( DVDFindSector( p_dvd ) < 0 )
 460     {
 461         intf_ErrMsg( "dvd error: can't select chapter" );
 462         return -1;
 463     }
 464
 465     /* start is : beginning of vts vobs + offset to vob x */
 466     p_dvd->i_start = p_dvd->i_title_start +
 467                      DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
 468
 469     /* Position the fd pointer on the right address */
 470     p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
 471
 472     p_dvd->i_chapter = i_chapter;
 473 #undef title
 474     return 0;
 475 }
 476
 477 /*****************************************************************************
 478  * DVDSetArea: initialize input data for title x, chapter y.
 479  * It should be called for each user navigation request, and to change
 480  * audio or sub-picture streams.
 481  * ---
 482  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 483  * i_audio, i_spu start from 1 ; 0 means off.
 484  * A negative value for an argument means it does not change
 485  *****************************************************************************/
 486 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
 487 {
 488     thread_dvd_data_t *  p_dvd;
 489     es_descriptor_t *    p_es;
 490     int                  i_audio;
 491     int                  i_spu;
 492     u16                  i_id;
 493     u8                   i_ac3;
 494     u8                   i_mpeg;
 495     u8                   i_sub_pic;
 496     u8                   i;
 497     int                  j;
 498     boolean_t            b_last;
 499
 500     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 501
 502     vlc_mutex_lock( &p_input->stream.stream_lock );
 503
 504     if( p_area != p_input->stream.p_selected_area )
 505     {
 506
 507         /*
 508          *  We have to load all title information
 509          */
 510         /* Change the default area */
 511         p_input->stream.p_selected_area =
 512                     p_input->stream.pp_areas[p_area->i_id];
 513
 514 //        vlc_mutex_unlock( &p_input->stream.stream_lock );
 515
 516         /* title number: it is not vts nb!,
 517          * it is what appears in the interface list */
 518         p_dvd->i_title = p_area->i_id;
 519         p_dvd->p_ifo->i_title = p_dvd->i_title;
 520
 521         /* uodate title environnement variable so that we don't
 522          * loop on the same title forever */
 523         main_PutIntVariable( INPUT_TITLE_VAR, p_dvd->i_title + 1 );
 524
 525         /* ifo vts */
 526         if( IfoTitleSet( p_dvd->p_ifo ) < 0 )
 527         {
 528             intf_ErrMsg( "dvd error: fatal error in vts ifo" );
 529             free( p_dvd );
 530             p_input->b_error = 1;
 531             return -1;
 532         }
 533
 534 #define vmg p_dvd->p_ifo->vmg
 535 #define vts p_dvd->p_ifo->vts
 536         /* title position inside the selected vts */
 537         p_dvd->i_vts_title =
 538                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
 539         p_dvd->i_program_chain =
 540           vts.title_inf.p_title_start[p_dvd->i_vts_title-1].i_program_chain_num;
 541
 542         intf_WarnMsg( 1, "dvd: title %d vts_title %d pgc %d",
 543                         p_dvd->i_title,
 544                         p_dvd->i_vts_title,
 545                         p_dvd->i_program_chain );
 546
 547         /* css title key for current vts */
 548         if( p_dvd->b_encrypted )
 549         {
 550             /* this one is vts number */
 551             p_dvd->p_css->i_title =
 552                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_set_num;
 553             p_dvd->p_css->i_title_pos =
 554                     vts.i_pos +
 555                     vts.manager_inf.i_title_vob_start_sector * DVD_LB_SIZE;
 556
 557             j = CSSGetKey( p_input->i_handle, p_dvd->p_css );
 558             if( j < 0 )
 559             {
 560                 intf_ErrMsg( "dvd error: fatal error in vts css key" );
 561                 free( p_dvd );
 562                 p_input->b_error = 1;
 563                 return -1;
 564             }
 565             else if( j > 0 )
 566             {
 567                 intf_ErrMsg( "dvd error: css decryption unavailable" );
 568                 free( p_dvd );
 569                 p_input->b_error = 1;
 570                 return -1;
 571             }
 572         }
 573
 574         /*
 575          * Angle management
 576          */
 577         p_dvd->i_angle_nb = vmg.title_inf.p_attr[p_dvd->i_title-1].i_angle_nb;
 578         p_dvd->i_angle = main_GetIntVariable( INPUT_ANGLE_VAR, 1 );
 579         if( ( p_dvd->i_angle <= 0 ) || p_dvd->i_angle > p_dvd->i_angle_nb )
 580         {
 581             p_dvd->i_angle = 1;
 582         }
 583
 584         /*
 585          * Set selected title start and size
 586          */
 587
 588         /* title set offset */
 589         p_dvd->i_title_start = vts.i_pos + DVD_LB_SIZE *
 590                       (off_t)( vts.manager_inf.i_title_vob_start_sector );
 591
 592         /* last video cell */
 593         p_dvd->i_cell = 0;
 594         p_dvd->i_prg_cell = -1 +
 595             vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb;
 596
 597         if( DVDFindCell( p_dvd ) < 0 )
 598         {
 599             intf_ErrMsg( "dvd error: can't find title end" );
 600             p_input->b_error = 1;
 601             return -1;
 602         }
 603
 604         /* temporary hack to fix size in some dvds */
 605         if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
 606         {
 607             p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
 608         }
 609
 610
 611         p_dvd->i_sector = 0;
 612         p_dvd->i_size = DVD_LB_SIZE *
 613           (off_t)( vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector );
 614         intf_WarnMsg( 2, "dvd info: stream size 1: %lld @ %d", p_dvd->i_size,
 615                       vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector );
 616
 617         if( DVDChapterSelect( p_dvd, 1 ) < 0 )
 618         {
 619             intf_ErrMsg( "dvd error: can't find first chapter" );
 620             p_input->b_error = 1;
 621             return -1;
 622         }
 623
 624         p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
 625
 626         intf_WarnMsg( 2, "dvd info: title: %d", p_dvd->i_title );
 627         intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
 628         intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
 629         intf_WarnMsg( 2, "dvd info: number of chapters: %d",
 630                    vmg.title_inf.p_attr[p_dvd->i_title-1].i_chapter_nb );
 631         intf_WarnMsg( 2, "dvd info: number of angles: %d", p_dvd->i_angle_nb );
 632
 633 //        vlc_mutex_lock( &p_input->stream.stream_lock );
 634
 635         /* Area definition */
 636         p_input->stream.p_selected_area->i_start = p_dvd->i_start;
 637         p_input->stream.p_selected_area->i_size = p_dvd->i_size;
 638         p_input->stream.p_selected_area->i_angle_nb = p_dvd->i_angle_nb;
 639         p_input->stream.p_selected_area->i_angle = p_dvd->i_angle;
 640
 641         /*
 642          * Destroy obsolete ES by reinitializing program 0
 643          * and find all ES in title with ifo data
 644          */
 645         if( p_input->stream.pp_programs != NULL )
 646         {
 647             /* We don't use input_EndStream here since
 648              * we keep area structures */
 649
 650             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 651             {
 652                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 653             }
 654
 655             input_DelProgram( p_input, p_input->stream.pp_programs[0] );
 656
 657             p_input->stream.pp_selected_es = NULL;
 658             p_input->stream.i_selected_es_number = 0;
 659         }
 660
 661         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 662
 663         /* No PSM to read in DVD mode, we already have all information */
 664         p_input->stream.pp_programs[0]->b_is_ok = 1;
 665         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
 666
 667         p_es = NULL;
 668
 669         /* ES 0 -> video MPEG2 */
 670         p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
 671         p_es->i_stream_id = 0xe0;
 672         p_es->i_type = MPEG2_VIDEO_ES;
 673         p_es->i_cat = VIDEO_ES;
 674         intf_WarnMsg( 1, "dvd info: video mpeg2 stream" );
 675         if( p_main->b_video )
 676         {
 677             input_SelectES( p_input, p_es );
 678         }
 679
 680         /* Audio ES, in the order they appear in .ifo */
 681
 682         i_ac3 = 0x7f;
 683         i_mpeg = 0xc0;
 684
 685         for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
 686         {
 687
 688 //#ifdef DEBUG
 689         intf_WarnMsg( 1, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x", i,
 690             vts.manager_inf.p_audio_attr[i-1].i_num_channels,
 691             vts.manager_inf.p_audio_attr[i-1].i_coding_mode,
 692             vts.manager_inf.p_audio_attr[i-1].i_multichannel_extension,
 693             vts.manager_inf.p_audio_attr[i-1].i_type,
 694             vts.manager_inf.p_audio_attr[i-1].i_appl_mode,
 695             vts.manager_inf.p_audio_attr[i-1].i_foo,
 696             vts.manager_inf.p_audio_attr[i-1].i_test,
 697             vts.manager_inf.p_audio_attr[i-1].i_bar,
 698             vts.manager_inf.p_audio_attr[i-1].i_quantization,
 699             vts.manager_inf.p_audio_attr[i-1].i_sample_freq,
 700             vts.manager_inf.p_audio_attr[i-1].i_lang_code,
 701             vts.manager_inf.p_audio_attr[i-1].i_caption );
 702 //#endif
 703
 704             switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
 705             {
 706             case 0x00:              /* AC3 */
 707                 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
 708                 p_es = input_AddES( p_input,
 709                                     p_input->stream.pp_programs[0], i_id, 0 );
 710                 p_es->i_stream_id = 0xbd;
 711                 p_es->i_type = AC3_AUDIO_ES;
 712                 p_es->b_audio = 1;
 713                 p_es->i_cat = AUDIO_ES;
 714                 strcpy( p_es->psz_desc, Language( hton16(
 715                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 716                 strcat( p_es->psz_desc, " (ac3)" );
 717
 718                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 719                               i, p_es->psz_desc, i_id );
 720
 721                 break;
 722             case 0x02:
 723             case 0x03:              /* MPEG audio */
 724                 i_id = 0xbf + i;
 725                 p_es = input_AddES( p_input,
 726                                     p_input->stream.pp_programs[0], i_id, 0 );
 727                 p_es->i_stream_id = i_id;
 728                 p_es->i_type = MPEG2_AUDIO_ES;
 729                 p_es->b_audio = 1;
 730                 p_es->i_cat = AUDIO_ES;
 731                 strcpy( p_es->psz_desc, Language( hton16(
 732                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 733                 strcat( p_es->psz_desc, " (mpeg)" );
 734
 735                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 736                               i, p_es->psz_desc, i_id );
 737
 738                 break;
 739             case 0x04:              /* LPCM */
 740                 i_id = 0;
 741                 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
 742                 break;
 743             case 0x06:              /* DTS */
 744                 i_id = 0;
 745                 i_ac3--;
 746                 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
 747                 break;
 748             default:
 749                 i_id = 0;
 750                 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 751                          vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
 752             }
 753
 754         }
 755
 756         /* Sub Picture ES */
 757
 758         b_last = 0;
 759         i_sub_pic = 0x20;
 760         for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
 761         {
 762             if( !b_last )
 763             {
 764                 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
 765                 p_es = input_AddES( p_input,
 766                                     p_input->stream.pp_programs[0], i_id, 0 );
 767                 p_es->i_stream_id = 0xbd;
 768                 p_es->i_type = DVD_SPU_ES;
 769                 p_es->i_cat = SPU_ES;
 770                 strcpy( p_es->psz_desc, Language( hton16(
 771                     vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
 772                 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
 773                               i, p_es->psz_desc, i_id );
 774
 775                 /* The before the last spu has a 0x0 prefix */
 776                 b_last =
 777                     ( vts.manager_inf.p_spu_attr[i].i_prefix == 0 );
 778             }
 779         }
 780
 781         if( p_main->b_audio )
 782         {
 783             /* For audio: first one if none or a not existing one specified */
 784             i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 785             if( i_audio < 0 || i_audio > vts.manager_inf.i_audio_nb )
 786             {
 787                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 788                 i_audio = 1;
 789             }
 790             if( i_audio > 0 && vts.manager_inf.i_audio_nb > 0 )
 791             {
 792                 input_SelectES( p_input, p_input->stream.pp_es[i_audio] );
 793             }
 794         }
 795
 796         if( p_main->b_video )
 797         {
 798             /* for spu, default is none */
 799             i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 800             if( i_spu < 0 || i_spu > vts.manager_inf.i_spu_nb )
 801             {
 802                 main_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
 803                 i_spu = 0;
 804             }
 805             if( i_spu > 0 && vts.manager_inf.i_spu_nb > 0 )
 806             {
 807                 i_spu += vts.manager_inf.i_audio_nb;
 808                 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 809             }
 810         }
 811     } /* i_title >= 0 */
 812     else
 813     {
 814         p_area = p_input->stream.p_selected_area;
 815     }
 816
 817     /*
 818      * Chapter selection
 819      */
 820
 821     if( ( p_area->i_part > 0 ) &&
 822         ( p_area->i_part <= p_area->i_part_nb ) )
 823     {
 824         if( DVDChapterSelect( p_dvd, p_area->i_part ) < 0 )
 825         {
 826             intf_ErrMsg( "dvd error: can't set chapter in area" );
 827             p_input->b_error = 1;
 828             return -1;
 829         }
 830
 831         p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
 832                                                   p_area->i_start;
 833         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 834
 835         intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld",
 836                                     p_area->i_part, p_area->i_tell );
 837     }
 838
 839     vlc_mutex_unlock( &p_input->stream.stream_lock );
 840 #undef vts
 841 #undef vmg
 842
 843     return 0;
 844 }
 845
 846 /*****************************************************************************
 847  * DVDInit: initializes DVD structures
 848  *****************************************************************************/
 849 static void DVDInit( input_thread_t * p_input )
 850 {
 851     thread_dvd_data_t *  p_dvd;
 852     input_area_t *       p_area;
 853     int                  i_title;
 854     int                  i_chapter;
 855     int                  i;
 856
 857     /* I don't want DVDs to start playing immediately */
 858 //    p_input->stream.i_new_status = PAUSE_S;
 859
 860     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 861     if( p_dvd == NULL )
 862     {
 863         intf_ErrMsg( "dvd error: out of memory" );
 864         p_input->b_error = 1;
 865         return;
 866     }
 867
 868     p_input->p_plugin_data = (void *)p_dvd;
 869     p_input->p_method_data = NULL;
 870
 871     p_dvd->i_fd = p_input->i_handle;
 872
 873     /* reading several block once seems to cause lock-up
 874      * when using input_ToggleES
 875      * who wrote thez damn buggy piece of shit ??? --stef */
 876     p_dvd->i_block_once = 1;//32;
 877     p_input->i_read_once = 8;//128;
 878
 879     i = CSSTest( p_input->i_handle );
 880
 881     if( i < 0 )
 882     {
 883         free( p_dvd );
 884         p_input->b_error = 1;
 885         return;
 886     }
 887
 888     p_dvd->b_encrypted = i;
 889
 890     lseek( p_input->i_handle, 0, SEEK_SET );
 891
 892     /* Reading structures initialisation */
 893     p_input->p_method_data =
 894         DVDNetlistInit( 2048, 8192, 2048, DVD_LB_SIZE, p_dvd->i_block_once );
 895     intf_WarnMsg( 2, "dvd info: netlist initialized" );
 896
 897     /* Ifo allocation & initialisation */
 898     if( IfoCreate( p_dvd ) < 0 )
 899     {
 900         intf_ErrMsg( "dvd error: allcation error in ifo" );
 901         p_input->b_error = 1;
 902         return;
 903     }
 904
 905     if( IfoInit( p_dvd->p_ifo ) < 0 )
 906     {
 907         intf_ErrMsg( "dvd error: fatal failure in ifo" );
 908         free( p_dvd );
 909         p_input->b_error = 1;
 910         return;
 911     }
 912
 913     /* CSS initialisation */
 914     if( p_dvd->b_encrypted )
 915     {
 916         p_dvd->p_css = malloc( sizeof(css_t) );
 917         if( p_dvd->p_css == NULL )
 918         {
 919             intf_ErrMsg( "dvd error: couldn't create css structure" );
 920             free( p_dvd );
 921             p_input->b_error = 1;
 922             return;
 923         }
 924
 925         p_dvd->p_css->i_agid = 0;
 926
 927         if( CSSInit( p_input->i_handle, p_dvd->p_css ) < 0 )
 928         {
 929             intf_ErrMsg( "dvd error: fatal failure in css" );
 930             free( p_dvd->p_css );
 931             free( p_dvd );
 932             p_input->b_error = 1;
 933             return;
 934         }
 935
 936         intf_WarnMsg( 2, "dvd info: css initialized" );
 937     }
 938
 939     /* Set stream and area data */
 940     vlc_mutex_lock( &p_input->stream.stream_lock );
 941
 942     /* Initialize ES structures */
 943     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 944
 945     /* disc input method */
 946     p_input->stream.i_method = INPUT_METHOD_DVD;
 947
 948 #define title_inf p_dvd->p_ifo->vmg.title_inf
 949     intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
 950
 951 #define area p_input->stream.pp_areas
 952     /* We start from 1 here since the default area 0
 953      * is reserved for video_ts.vob */
 954     for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
 955     {
 956         input_AddArea( p_input );
 957
 958         /* Titles are Program Chains */
 959         area[i]->i_id = i;
 960
 961         /* Absolute start offset and size
 962          * We can only set that with vts ifo, so we do it during the
 963          * first call to DVDSetArea */
 964         area[i]->i_start = 0;
 965         area[i]->i_size = 0;
 966
 967         /* Number of chapters */
 968         area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
 969         area[i]->i_part = 1;
 970
 971         /* Number of angles */
 972         area[i]->i_angle_nb = 0;
 973         area[i]->i_angle = 1;
 974
 975         /* Offset to vts_i_0.ifo */
 976         area[i]->i_plugin_data = p_dvd->p_ifo->i_off +
 977                        ( title_inf.p_attr[i-1].i_start_sector * DVD_LB_SIZE );
 978     }
 979 #undef area
 980
 981     /* Get requested title - if none try the first title */
 982     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 983     if( i_title <= 0 || i_title > title_inf.i_title_nb )
 984     {
 985         i_title = 1;
 986     }
 987
 988 #undef title_inf
 989
 990     /* Get requested chapter - if none defaults to first one */
 991     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 992     if( i_chapter <= 0 )
 993     {
 994         i_chapter = 1;
 995     }
 996
 997     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 998
 999     p_area = p_input->stream.pp_areas[i_title];
1000
1001     vlc_mutex_unlock( &p_input->stream.stream_lock );
1002
1003     /* set title, chapter, audio and subpic */
1004     DVDSetArea( p_input, p_area );
1005
1006     return;
1007 }
1008
1009 /*****************************************************************************
1010  * DVDEnd: frees unused data
1011  *****************************************************************************/
1012 static void DVDEnd( input_thread_t * p_input )
1013 {
1014     thread_dvd_data_t *     p_dvd;
1015     dvd_netlist_t *         p_netlist;
1016
1017     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
1018     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
1019
1020     if( p_dvd->b_encrypted )
1021     {
1022         free( p_dvd->p_css );
1023     }
1024
1025     IfoDestroy( p_dvd->p_ifo );
1026     free( p_dvd );
1027     DVDNetlistEnd( p_netlist );
1028 }
1029
1030 /*****************************************************************************
1031  * DVDRead: reads data packets into the netlist.
1032  *****************************************************************************
1033  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
1034  * EOF.
1035  *****************************************************************************/
1036 static int DVDRead( input_thread_t * p_input,
1037                     data_packet_t ** pp_packets )
1038 {
1039     thread_dvd_data_t *     p_dvd;
1040     dvd_netlist_t *         p_netlist;
1041     struct iovec *          p_vec;
1042     struct data_packet_s *  pp_data[p_input->i_read_once];
1043     u8 *                    pi_cur;
1044     int                     i_block_once;
1045     int                     i_packet_size;
1046     int                     i_iovec;
1047     int                     i_packet;
1048     int                     i_pos;
1049     int                     i_read_bytes;
1050     int                     i_read_blocks;
1051     off_t                   i_off;
1052     boolean_t               b_eof;
1053
1054     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
1055     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
1056 #define title \
1057     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1058
1059     /* Get an iovec pointer */
1060     if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
1061     {
1062         intf_ErrMsg( "dvd error: can't get iovec" );
1063         return -1;
1064     }
1065
1066     i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
1067
1068     /* Get the position of the next cell if we're at cell end */
1069     if( i_block_once <= 0 )
1070     {
1071         p_dvd->i_cell++;
1072
1073         /* Find cell index in adress map */
1074         if( DVDFindSector( p_dvd ) < 0 )
1075         {
1076             pp_packets[0] = NULL;
1077             intf_ErrMsg( "dvd error: can't find next cell" );
1078             return 1;
1079         }
1080
1081         /* Position the fd pointer on the right address */
1082         i_off = lseek( p_dvd->i_fd,
1083                        p_dvd->i_title_start +
1084                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET );
1085
1086         /* update chapter : it will be easier when we have navigation
1087          * ES support */
1088         if( title.chapter_map.pi_start_cell[p_dvd->i_chapter-1] <=
1089             p_dvd->i_prg_cell )
1090         {
1091             p_dvd->i_chapter++;
1092         }
1093
1094         vlc_mutex_lock( &p_input->stream.stream_lock );
1095
1096         p_input->stream.p_selected_area->i_tell = i_off -
1097                                     p_input->stream.p_selected_area->i_start;
1098         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1099
1100         /* the synchro has to be reinitialized when we change cell */
1101         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
1102
1103         vlc_mutex_unlock( &p_input->stream.stream_lock );
1104
1105         i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
1106     }
1107
1108     /* the number of blocks read is the maw between the requested
1109      * value and the leaving block in the cell */
1110     if( i_block_once > p_dvd->i_block_once )
1111     {
1112         i_block_once = p_dvd->i_block_once;
1113     }
1114 //intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
1115
1116     p_netlist->i_read_once = i_block_once;
1117
1118     /* Reads from DVD */
1119     i_read_bytes = readv( p_dvd->i_fd, p_vec, i_block_once );
1120     i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
1121
1122     /* Update netlist indexes */
1123     DVDMviovec( p_netlist, i_read_blocks, pp_data );
1124
1125     /* Update global position */
1126     p_dvd->i_sector += i_read_blocks;
1127
1128     i_packet = 0;
1129
1130     /* Read headers to compute payload length */
1131     for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
1132     {
1133         if( p_dvd->b_encrypted )
1134         {
1135             CSSDescrambleSector( p_dvd->p_css->pi_title_key,
1136                                  p_vec[i_iovec].iov_base );
1137         }
1138
1139         i_pos = 0;
1140
1141         while( i_pos < p_netlist->i_buffer_size )
1142         {
1143             pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
1144
1145             /*default header */
1146             if( U32_AT( pi_cur ) != 0x1BA )
1147             {
1148                 /* That's the case for all packets, except pack header. */
1149                 i_packet_size = U16_AT( pi_cur + 4 );
1150                 pp_packets[i_packet] = DVDNewPtr( p_netlist );
1151             }
1152             else
1153             {
1154                 /* Pack header. */
1155                 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
1156                 {
1157                     /* MPEG-2 */
1158                     i_packet_size = 8;
1159                 }
1160                 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1161                 {
1162                     /* MPEG-1 */
1163                     i_packet_size = 6;
1164                 }
1165                 else
1166                 {
1167                     intf_ErrMsg( "Unable to determine stream type" );
1168                     return( -1 );
1169                 }
1170
1171                 pp_packets[i_packet] = pp_data[i_iovec];
1172
1173             }
1174
1175             (*pp_data[i_iovec]->pi_refcount)++;
1176
1177             pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1178
1179             pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1180
1181             pp_packets[i_packet]->p_payload_start =
1182                     pp_packets[i_packet]->p_buffer + i_pos;
1183
1184             pp_packets[i_packet]->p_payload_end =
1185                     pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1186
1187             pp_packets[i_packet]->p_next = NULL;
1188             pp_packets[i_packet]->b_discard_payload = 0;
1189
1190             i_packet++;
1191             i_pos += i_packet_size + 6;
1192         }
1193     }
1194
1195     pp_packets[i_packet] = NULL;
1196
1197     vlc_mutex_lock( &p_input->stream.stream_lock );
1198
1199     p_input->stream.p_selected_area->i_tell += i_read_bytes;
1200     b_eof = !( p_input->stream.p_selected_area->i_tell < p_dvd->i_size );
1201
1202     vlc_mutex_unlock( &p_input->stream.stream_lock );
1203
1204     if( ( i_read_blocks == i_block_once ) && ( !b_eof ) )
1205     {
1206         return 0;
1207     }
1208     else
1209     {
1210         return 1;
1211     }
1212 #undef title
1213 }
1214
1215
1216 /*****************************************************************************
1217  * DVDRewind : reads a stream backward
1218  *****************************************************************************/
1219 static int DVDRewind( input_thread_t * p_input )
1220 {
1221     return( -1 );
1222 }
1223
1224 /*****************************************************************************
1225  * DVDSeek : Goes to a given position on the stream ; this one is used by the
1226  * input and translate chronological position from input to logical postion
1227  * on the device
1228  * ---
1229  * The lock should be taken before calling this function.
1230  *****************************************************************************/
1231 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1232 {
1233     thread_dvd_data_t *     p_dvd;
1234     off_t                   i_pos;
1235     int                     i_prg_cell;
1236     int                     i_cell;
1237     int                     i_chapter;
1238
1239     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1240 #define title \
1241     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1242
1243     /* we have to take care of offset of beginning of title */
1244     i_pos = i_off + p_input->stream.p_selected_area->i_start
1245                   - p_dvd->i_title_start;
1246
1247     /* update navigation data */
1248     p_dvd->i_sector = i_pos >> 11;
1249
1250     i_prg_cell = 0;
1251     i_chapter = 1;
1252
1253     /* parse vobu address map to find program cell */
1254     while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector  )
1255     {
1256         i_prg_cell++;
1257     }
1258
1259     p_dvd->i_prg_cell = i_prg_cell;
1260     p_dvd->i_cell = 0;
1261
1262     /* Find first title cell which is inside program cell */
1263     if( DVDFindCell( p_dvd ) < 0 )
1264     {
1265         /* no following cell : we're at eof */
1266         intf_ErrMsg( "dvd error: cell seeking failed" );
1267         p_input->b_error = 1;
1268         return;
1269     }
1270
1271     i_cell = p_dvd->i_cell;
1272
1273 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1274     /* parse cell address map to find title cell containing sector */
1275     while( cell.i_end_sector < p_dvd->i_sector )
1276     {
1277         i_cell++;
1278     }
1279
1280     p_dvd->i_cell = i_cell;
1281
1282     p_dvd->i_end_sector = MIN(
1283             cell.i_end_sector,
1284             title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1285
1286     /* update chapter */
1287     while( title.chapter_map.pi_start_cell[i_chapter-1] <= p_dvd->i_prg_cell )
1288     {
1289         i_chapter++;
1290     }
1291
1292     p_dvd->i_chapter = i_chapter;
1293     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1294
1295     p_input->stream.p_selected_area->i_tell =
1296                 lseek( p_dvd->i_fd, p_dvd->i_title_start +
1297                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET ) -
1298                 p_input->stream.p_selected_area->i_start;
1299
1300     intf_WarnMsg( 1, "Program Cell: %d Cell: %d Chapter: %d",
1301                      i_prg_cell, i_cell, p_dvd->i_chapter );
1302
1303     return;
1304 }