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 1.46 2001/04/15 04:19:57 sam 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     while( ( ( title.p_cell_pos[i_index].i_vob_id !=
 358                    cell.p_cell_map[i_cell].i_vob_id ) ||
 359       ( title.p_cell_pos[i_index].i_cell_id !=
 360                    cell.p_cell_map[i_cell].i_cell_id ) ) &&
 361            ( i_cell < cell.i_cell_nb ) )
 362     {
 363         i_cell++;
 364     }
 365 /*
 366 intf_WarnMsg( 1, "FindCell: i_cell %d i_index %d found %d nb %d",
 367                     p_dvd->i_cell,
 368                     p_dvd->i_prg_cell,
 369                     i_cell,
 370                     cell.i_cell_nb );
 371 */
 372     if( i_cell == cell.i_cell_nb )
 373     {
 374         intf_ErrMsg( "dvd error: can't find cell" );
 375         return -1;
 376     }
 377     else
 378     {
 379         p_dvd->i_cell = i_cell;
 380         return 0;
 381     }
 382 #undef title
 383 #undef cell
 384 }
 385
 386 /*****************************************************************************
 387  * DVDFindSector: find cell index in adress map from index in
 388  * information table program map and give corresponding sectors.
 389  *****************************************************************************/
 390 static int DVDFindSector( thread_dvd_data_t * p_dvd )
 391 {
 392 #define title \
 393         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 394
 395     if( p_dvd->i_sector > title.p_cell_play[p_dvd->i_prg_cell].i_end_sector )
 396     {
 397         p_dvd->i_prg_cell++;
 398     }
 399
 400     if( DVDFindCell( p_dvd ) < 0 )
 401     {
 402         intf_ErrMsg( "dvd error: can't find sector" );
 403         return -1;
 404     }
 405
 406     /* Find start and end sectors of new cell */
 407     p_dvd->i_sector = MAX(
 408          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
 409          title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
 410     p_dvd->i_end_sector = MIN(
 411          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
 412          title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
 413
 414 /*    intf_WarnMsg( 1, "cell: %d sector1: 0x%x end1: 0x%x\n"
 415                      "index: %d sector2: 0x%x end2: 0x%x",
 416         p_dvd->i_cell,
 417         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
 418         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
 419         p_dvd->i_prg_cell,
 420         title.p_cell_play[p_dvd->i_prg_cell].i_start_sector,
 421         title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
 422 */
 423 #undef title
 424
 425     return 0;
 426 }
 427
 428 /*****************************************************************************
 429  * DVDChapterSelect: find the cell corresponding to requested chapter
 430  * When called to find chapter 1, also sets title size and end.
 431  *****************************************************************************/
 432 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
 433 {
 434 #define title \
 435         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 436
 437     /* Find cell index in Program chain for current chapter */
 438     p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
 439     p_dvd->i_cell = 0;
 440     p_dvd->i_sector = 0;
 441
 442     /* Search for cell_index in cell adress_table and initialize start sector */
 443     if( DVDFindSector( p_dvd ) < 0 )
 444     {
 445         intf_ErrMsg( "dvd error: can't select chapter" );
 446         return -1;
 447     }
 448
 449     /* start is : beginning of vts vobs + offset to vob x */
 450     p_dvd->i_start = p_dvd->i_title_start +
 451                      DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
 452
 453     /* Position the fd pointer on the right address */
 454     p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
 455
 456     p_dvd->i_chapter = i_chapter;
 457 #undef title
 458     return 0;
 459 }
 460
 461 /*****************************************************************************
 462  * DVDSetArea: initialize input data for title x, chapter y.
 463  * It should be called for each user navigation request, and to change
 464  * audio or sub-picture streams.
 465  * ---
 466  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 467  * i_audio, i_spu start from 1 ; 0 means off.
 468  * A negative value for an argument means it does not change
 469  *****************************************************************************/
 470 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
 471 {
 472     thread_dvd_data_t *  p_dvd;
 473     es_descriptor_t *    p_es;
 474     int                  i_audio;
 475     int                  i_spu;
 476     u16                  i_id;
 477     u8                   i_ac3;
 478     u8                   i_mpeg;
 479     u8                   i_sub_pic;
 480     u8                   i;
 481     int                  j;
 482     boolean_t            b_last;
 483
 484     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 485
 486     vlc_mutex_lock( &p_input->stream.stream_lock );
 487
 488     if( p_area != p_input->stream.p_selected_area )
 489     {
 490
 491         /*
 492          *  We have to load all title information
 493          */
 494         /* Change the default area */
 495         p_input->stream.p_selected_area =
 496                     p_input->stream.pp_areas[p_area->i_id];
 497
 498         /* title number: it is not vts nb!,
 499          * it is what appears in the interface list */
 500         p_dvd->i_title = p_area->i_id;
 501         p_dvd->p_ifo->i_title = p_dvd->i_title;
 502
 503         /* ifo vts */
 504         if( IfoTitleSet( p_dvd->p_ifo ) < 0 )
 505         {
 506             intf_ErrMsg( "dvd error: fatal error in vts ifo" );
 507             free( p_dvd );
 508             p_input->b_error = 1;
 509             return -1;
 510         }
 511
 512 #define vmg p_dvd->p_ifo->vmg
 513 #define vts p_dvd->p_ifo->vts
 514         /* title position inside the selected vts */
 515         p_dvd->i_vts_title =
 516                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
 517         p_dvd->i_program_chain =
 518           vts.title_inf.p_title_start[p_dvd->i_vts_title-1].i_program_chain_num;
 519
 520 /*        intf_WarnMsg( 1, "dvd: title %d vts_title %d pgc %d",
 521                         p_dvd->i_title,
 522                         p_dvd->i_vts_title,
 523                         p_dvd->i_program_chain );
 524 */
 525         /* css title key for current vts */
 526         if( p_dvd->b_encrypted )
 527         {
 528             /* this one is vts number */
 529             p_dvd->p_css->i_title =
 530                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_set_num;
 531             p_dvd->p_css->i_title_pos =
 532                     vts.i_pos +
 533                     vts.manager_inf.i_title_vob_start_sector * DVD_LB_SIZE;
 534
 535             j = CSSGetKey( p_input->i_handle, p_dvd->p_css );
 536             if( j < 0 )
 537             {
 538                 intf_ErrMsg( "dvd error: fatal error in vts css key" );
 539                 free( p_dvd );
 540                 p_input->b_error = 1;
 541                 return -1;
 542             }
 543             else if( j > 0 )
 544             {
 545                 intf_ErrMsg( "dvd error: css decryption unavailable" );
 546                 free( p_dvd );
 547                 p_input->b_error = 1;
 548                 return -1;
 549             }
 550         }
 551
 552         /*
 553          * Set selected title start and size
 554          */
 555
 556         /* title set offset */
 557         p_dvd->i_title_start = vts.i_pos + DVD_LB_SIZE *
 558                       (off_t)( vts.manager_inf.i_title_vob_start_sector );
 559
 560         /* last video cell */
 561         p_dvd->i_cell = 0;
 562         p_dvd->i_prg_cell = -1 +
 563             vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb;
 564
 565         if( DVDFindCell( p_dvd ) < 0 )
 566         {
 567             intf_ErrMsg( "dvd error: can't find title end" );
 568             p_input->b_error = 1;
 569             return -1;
 570         }
 571
 572         /* temporary hack to fix size in some dvds */
 573         if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
 574         {
 575             p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
 576         }
 577
 578         p_dvd->i_sector = 0;
 579         p_dvd->i_size = DVD_LB_SIZE *
 580           (off_t)( vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector );
 581
 582         if( DVDChapterSelect( p_dvd, 1 ) < 0 )
 583         {
 584             intf_ErrMsg( "dvd error: can't find first chapter" );
 585             p_input->b_error = 1;
 586             return -1;
 587         }
 588
 589         p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
 590
 591         intf_WarnMsg( 2, "dvd info: title: %d", p_dvd->i_title );
 592         intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
 593         intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
 594         intf_WarnMsg( 2, "dvd info: number of chapters: %d",
 595                    vmg.title_inf.p_attr[p_dvd->i_title-1].i_chapter_nb );
 596
 597         /* Area definition */
 598         p_input->stream.p_selected_area->i_start = p_dvd->i_start;
 599         p_input->stream.p_selected_area->i_size = p_dvd->i_size;
 600
 601         /*
 602          * Destroy obsolete ES by reinitializing program 0
 603          * and find all ES in title with ifo data
 604          */
 605         if( p_input->stream.pp_programs != NULL )
 606         {
 607             /* We don't use input_EndStream here since
 608              * we keep area structures */
 609
 610             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 611             {
 612                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 613             }
 614
 615             input_DelProgram( p_input, p_input->stream.pp_programs[0] );
 616
 617             p_input->stream.pp_selected_es = NULL;
 618             p_input->stream.i_selected_es_number = 0;
 619         }
 620
 621         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 622
 623         /* No PSM to read in DVD mode, we already have all information */
 624         p_input->stream.pp_programs[0]->b_is_ok = 1;
 625         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
 626
 627         p_es = NULL;
 628
 629         /* ES 0 -> video MPEG2 */
 630         p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
 631         p_es->i_stream_id = 0xe0;
 632         p_es->i_type = MPEG2_VIDEO_ES;
 633         p_es->i_cat = VIDEO_ES;
 634         intf_WarnMsg( 1, "dvd info: video mpeg2 stream" );
 635         if( p_main->b_video )
 636         {
 637             input_SelectES( p_input, p_es );
 638         }
 639
 640         /* Audio ES, in the order they appear in .ifo */
 641
 642         i_ac3 = 0x7f;
 643         i_mpeg = 0xc0;
 644
 645         for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
 646         {
 647
 648 #ifdef DEBUG
 649         intf_WarnMsg( 1, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x", i,
 650             vts.manager_inf.p_audio_attr[i-1].i_num_channels,
 651             vts.manager_inf.p_audio_attr[i-1].i_coding_mode,
 652             vts.manager_inf.p_audio_attr[i-1].i_multichannel_extension,
 653             vts.manager_inf.p_audio_attr[i-1].i_type,
 654             vts.manager_inf.p_audio_attr[i-1].i_appl_mode,
 655             vts.manager_inf.p_audio_attr[i-1].i_foo,
 656             vts.manager_inf.p_audio_attr[i-1].i_test,
 657             vts.manager_inf.p_audio_attr[i-1].i_bar,
 658             vts.manager_inf.p_audio_attr[i-1].i_quantization,
 659             vts.manager_inf.p_audio_attr[i-1].i_sample_freq,
 660             vts.manager_inf.p_audio_attr[i-1].i_lang_code,
 661             vts.manager_inf.p_audio_attr[i-1].i_caption );
 662 #endif
 663
 664             switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
 665             {
 666             case 0x00:              /* AC3 */
 667                 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
 668                 p_es = input_AddES( p_input,
 669                                     p_input->stream.pp_programs[0], i_id, 0 );
 670                 p_es->i_stream_id = 0xbd;
 671                 p_es->i_type = AC3_AUDIO_ES;
 672                 p_es->b_audio = 1;
 673                 p_es->i_cat = AUDIO_ES;
 674                 strcpy( p_es->psz_desc, Language( hton16(
 675                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 676                 strcat( p_es->psz_desc, " (ac3)" );
 677
 678                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 679                               i, p_es->psz_desc, i_id );
 680
 681                 break;
 682             case 0x02:
 683             case 0x03:              /* MPEG audio */
 684                 i_id = 0xbf + i;
 685                 p_es = input_AddES( p_input,
 686                                     p_input->stream.pp_programs[0], i_id, 0 );
 687                 p_es->i_stream_id = i_id;
 688                 p_es->i_type = MPEG2_AUDIO_ES;
 689                 p_es->b_audio = 1;
 690                 p_es->i_cat = AUDIO_ES;
 691                 strcpy( p_es->psz_desc, Language( hton16(
 692                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 693                 strcat( p_es->psz_desc, " (mpeg)" );
 694
 695                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 696                               i, p_es->psz_desc, i_id );
 697
 698                 break;
 699             case 0x04:              /* LPCM */
 700                 i_id = 0;
 701                 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
 702                 break;
 703             case 0x06:              /* DTS */
 704                 i_id = 0;
 705                 i_ac3--;
 706                 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
 707                 break;
 708             default:
 709                 i_id = 0;
 710                 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 711                          vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
 712             }
 713
 714         }
 715
 716         /* Sub Picture ES */
 717
 718         b_last = 0;
 719         i_sub_pic = 0x20;
 720         for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
 721         {
 722             if( !b_last )
 723             {
 724                 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
 725                 p_es = input_AddES( p_input,
 726                                     p_input->stream.pp_programs[0], i_id, 0 );
 727                 p_es->i_stream_id = 0xbd;
 728                 p_es->i_type = DVD_SPU_ES;
 729                 p_es->i_cat = SPU_ES;
 730                 strcpy( p_es->psz_desc, Language( hton16(
 731                     vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
 732                 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
 733                               i, p_es->psz_desc, i_id );
 734
 735                 /* The before the last spu has a 0x0 prefix */
 736                 b_last =
 737                     ( vts.manager_inf.p_spu_attr[i].i_prefix == 0 );
 738             }
 739         }
 740
 741         if( p_main->b_audio )
 742         {
 743             /* For audio: first one if none or a not existing one specified */
 744             i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 745             if( i_audio < 0 || i_audio > vts.manager_inf.i_audio_nb )
 746             {
 747                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 748                 i_audio = 1;
 749             }
 750             if( i_audio > 0 && vts.manager_inf.i_audio_nb > 0 )
 751             {
 752                 input_SelectES( p_input, p_input->stream.pp_es[i_audio] );
 753             }
 754         }
 755
 756         if( p_main->b_video )
 757         {
 758             /* for spu, default is none */
 759             i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 760             if( i_spu < 0 || i_spu > vts.manager_inf.i_spu_nb )
 761             {
 762                 main_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
 763                 i_spu = 0;
 764             }
 765             if( i_spu > 0 && vts.manager_inf.i_spu_nb > 0 )
 766             {
 767                 i_spu += vts.manager_inf.i_audio_nb;
 768                 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 769             }
 770         }
 771     } /* i_title >= 0 */
 772     else
 773     {
 774         p_area = p_input->stream.p_selected_area;
 775     }
 776
 777     /*
 778      * Chapter selection
 779      */
 780
 781     if( ( p_area->i_part > 0 ) &&
 782         ( p_area->i_part <= p_area->i_part_nb ) )
 783     {
 784         if( DVDChapterSelect( p_dvd, p_area->i_part ) < 0 )
 785         {
 786             intf_ErrMsg( "dvd error: can't set chapter in area" );
 787             p_input->b_error = 1;
 788             return -1;
 789         }
 790
 791         p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
 792                                                   p_area->i_start;
 793         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 794
 795         intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld",
 796                                     p_area->i_part, p_area->i_tell );
 797     }
 798
 799     vlc_mutex_unlock( &p_input->stream.stream_lock );
 800 #undef vts
 801 #undef vmg
 802
 803     return 0;
 804 }
 805
 806 /*****************************************************************************
 807  * DVDInit: initializes DVD structures
 808  *****************************************************************************/
 809 static void DVDInit( input_thread_t * p_input )
 810 {
 811     thread_dvd_data_t *  p_dvd;
 812     input_area_t *       p_area;
 813     int                  i_title;
 814     int                  i_chapter;
 815     int                  i;
 816
 817     /* I don't want DVDs to start playing immediately */
 818 //    p_input->stream.i_new_status = PAUSE_S;
 819
 820     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 821     if( p_dvd == NULL )
 822     {
 823         intf_ErrMsg( "dvd error: out of memory" );
 824         p_input->b_error = 1;
 825         return;
 826     }
 827
 828     p_input->p_plugin_data = (void *)p_dvd;
 829     p_input->p_method_data = NULL;
 830
 831     p_dvd->i_fd = p_input->i_handle;
 832
 833     /* reading several block once seems to cause lock-up
 834      * when using input_ToggleES
 835      * who wrote thez damn buggy piece of shit ??? --stef */
 836     p_dvd->i_block_once = 1;//32;
 837     p_input->i_read_once = 8;//128;
 838
 839     i = CSSTest( p_input->i_handle );
 840
 841     if( i < 0 )
 842     {
 843         free( p_dvd );
 844         p_input->b_error = 1;
 845         return;
 846     }
 847
 848     p_dvd->b_encrypted = i;
 849
 850     lseek( p_input->i_handle, 0, SEEK_SET );
 851
 852     /* Reading structures initialisation */
 853     p_input->p_method_data =
 854         DVDNetlistInit( 2048, 8192, 2048, DVD_LB_SIZE, p_dvd->i_block_once );
 855     intf_WarnMsg( 2, "dvd info: netlist initialized" );
 856
 857     /* Ifo allocation & initialisation */
 858     if( IfoCreate( p_dvd ) < 0 )
 859     {
 860         intf_ErrMsg( "dvd error: allcation error in ifo" );
 861         p_input->b_error = 1;
 862         return;
 863     }
 864
 865     if( IfoInit( p_dvd->p_ifo ) < 0 )
 866     {
 867         intf_ErrMsg( "dvd error: fatal failure in ifo" );
 868         free( p_dvd );
 869         p_input->b_error = 1;
 870         return;
 871     }
 872
 873     /* CSS initialisation */
 874     if( p_dvd->b_encrypted )
 875     {
 876         p_dvd->p_css = malloc( sizeof(css_t) );
 877         if( p_dvd->p_css == NULL )
 878         {
 879             intf_ErrMsg( "dvd error: couldn't create css structure" );
 880             free( p_dvd );
 881             p_input->b_error = 1;
 882             return;
 883         }
 884
 885         p_dvd->p_css->i_agid = 0;
 886
 887         if( CSSInit( p_input->i_handle, p_dvd->p_css ) < 0 )
 888         {
 889             intf_ErrMsg( "dvd error: fatal failure in css" );
 890             free( p_dvd->p_css );
 891             free( p_dvd );
 892             p_input->b_error = 1;
 893             return;
 894         }
 895
 896         intf_WarnMsg( 2, "dvd info: css initialized" );
 897     }
 898
 899     /* Set stream and area data */
 900     vlc_mutex_lock( &p_input->stream.stream_lock );
 901
 902     /* Initialize ES structures */
 903     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 904
 905     /* disc input method */
 906     p_input->stream.i_method = INPUT_METHOD_DVD;
 907
 908 #define title_inf p_dvd->p_ifo->vmg.title_inf
 909     intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
 910
 911 #define area p_input->stream.pp_areas
 912     /* We start from 1 here since the default area 0
 913      * is reserved for video_ts.vob */
 914     for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
 915     {
 916         input_AddArea( p_input );
 917
 918         /* Titles are Program Chains */
 919         area[i]->i_id = i;
 920
 921         /* Absolute start offset and size
 922          * We can only set that with vts ifo, so we do it during the
 923          * first call to DVDSetArea */
 924         area[i]->i_start = 0;
 925         area[i]->i_size = 0;
 926
 927         /* Number of chapters */
 928         area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
 929         area[i]->i_part = 1;
 930
 931         /* Offset to vts_i_0.ifo */
 932         area[i]->i_plugin_data = p_dvd->p_ifo->i_off +
 933                        ( title_inf.p_attr[i-1].i_start_sector * DVD_LB_SIZE );
 934     }
 935 #undef area
 936
 937     /* Get requested title - if none try the first title */
 938     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 939     if( i_title <= 0 || i_title > title_inf.i_title_nb )
 940     {
 941         i_title = 1;
 942     }
 943 #undef title_inf
 944     /* Get requested chapter - if none defaults to first one */
 945     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 946     if( i_chapter <= 0 )
 947     {
 948         i_chapter = 1;
 949     }
 950
 951     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 952
 953     p_area = p_input->stream.pp_areas[i_title];
 954
 955     vlc_mutex_unlock( &p_input->stream.stream_lock );
 956
 957     /* set title, chapter, audio and subpic */
 958     DVDSetArea( p_input, p_area );
 959
 960     return;
 961 }
 962
 963 /*****************************************************************************
 964  * DVDEnd: frees unused data
 965  *****************************************************************************/
 966 static void DVDEnd( input_thread_t * p_input )
 967 {
 968     thread_dvd_data_t *     p_dvd;
 969     dvd_netlist_t *         p_netlist;
 970
 971     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 972     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
 973
 974     if( p_dvd->b_encrypted )
 975     {
 976         free( p_dvd->p_css );
 977     }
 978
 979     IfoDestroy( p_dvd->p_ifo );
 980     free( p_dvd );
 981     DVDNetlistEnd( p_netlist );
 982 }
 983
 984 /*****************************************************************************
 985  * DVDRead: reads data packets into the netlist.
 986  *****************************************************************************
 987  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 988  * EOF.
 989  *****************************************************************************/
 990 static int DVDRead( input_thread_t * p_input,
 991                     data_packet_t ** pp_packets )
 992 {
 993     thread_dvd_data_t *     p_dvd;
 994     dvd_netlist_t *         p_netlist;
 995     struct iovec *          p_vec;
 996     struct data_packet_s *  pp_data[p_input->i_read_once];
 997     u8 *                    pi_cur;
 998     int                     i_block_once;
 999     int                     i_packet_size;
1000     int                     i_iovec;
1001     int                     i_packet;
1002     int                     i_pos;
1003     int                     i_read_bytes;
1004     int                     i_read_blocks;
1005     off_t                   i_off;
1006     boolean_t               b_eof;
1007
1008     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
1009     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
1010 #define title \
1011     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1012
1013     /* Get an iovec pointer */
1014     if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
1015     {
1016         intf_ErrMsg( "dvd error: can't get iovec" );
1017         return -1;
1018     }
1019
1020     i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
1021
1022     /* Get the position of the next cell if we're at cell end */
1023     if( i_block_once <= 0 )
1024     {
1025         p_dvd->i_cell++;
1026
1027         /* Find cell index in adress map */
1028         if( DVDFindSector( p_dvd ) < 0 )
1029         {
1030             pp_packets[0] = NULL;
1031             intf_ErrMsg( "dvd error: can't find next cell" );
1032             return 1;
1033         }
1034
1035         /* Position the fd pointer on the right address */
1036         i_off = lseek( p_dvd->i_fd,
1037                        p_dvd->i_title_start +
1038                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET );
1039
1040         /* update chapter : it will be easier when we have navigation
1041          * ES support */
1042         if( title.chapter_map.pi_start_cell[p_dvd->i_chapter-1] <=
1043             p_dvd->i_prg_cell )
1044         {
1045             p_dvd->i_chapter++;
1046         }
1047
1048         vlc_mutex_lock( &p_input->stream.stream_lock );
1049
1050         p_input->stream.p_selected_area->i_tell = i_off -
1051                                     p_input->stream.p_selected_area->i_start;
1052         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1053
1054         /* the synchro has to be reinitialized when we change cell */
1055         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
1056
1057         vlc_mutex_unlock( &p_input->stream.stream_lock );
1058
1059         i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
1060     }
1061
1062     /* the number of blocks read is the maw between the requested
1063      * value and the leaving block in the cell */
1064     if( i_block_once > p_dvd->i_block_once )
1065     {
1066         i_block_once = p_dvd->i_block_once;
1067     }
1068 //intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
1069
1070     p_netlist->i_read_once = i_block_once;
1071
1072     /* Reads from DVD */
1073     i_read_bytes = readv( p_dvd->i_fd, p_vec, i_block_once );
1074     i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
1075
1076     /* Update netlist indexes */
1077     DVDMviovec( p_netlist, i_read_blocks, pp_data );
1078
1079     /* Update global position */
1080     p_dvd->i_sector += i_read_blocks;
1081
1082     i_packet = 0;
1083
1084     /* Read headers to compute payload length */
1085     for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
1086     {
1087         if( p_dvd->b_encrypted )
1088         {
1089             CSSDescrambleSector( p_dvd->p_css->pi_title_key,
1090                                  p_vec[i_iovec].iov_base );
1091             ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
1092         }
1093
1094         i_pos = 0;
1095
1096         while( i_pos < p_netlist->i_buffer_size )
1097         {
1098             pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
1099
1100             /*default header */
1101             if( U32_AT( pi_cur ) != 0x1BA )
1102             {
1103                 /* That's the case for all packets, except pack header. */
1104                 i_packet_size = U16_AT( pi_cur + 4 );
1105                 pp_packets[i_packet] = DVDNewPtr( p_netlist );
1106             }
1107             else
1108             {
1109                 /* Pack header. */
1110                 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
1111                 {
1112                     /* MPEG-2 */
1113                     i_packet_size = 8;
1114                 }
1115                 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1116                 {
1117                     /* MPEG-1 */
1118                     i_packet_size = 6;
1119                 }
1120                 else
1121                 {
1122                     intf_ErrMsg( "Unable to determine stream type" );
1123                     return( -1 );
1124                 }
1125
1126                 pp_packets[i_packet] = pp_data[i_iovec];
1127
1128             }
1129
1130             (*pp_data[i_iovec]->pi_refcount)++;
1131
1132             pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1133
1134             pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1135
1136             pp_packets[i_packet]->p_payload_start =
1137                     pp_packets[i_packet]->p_buffer + i_pos;
1138
1139             pp_packets[i_packet]->p_payload_end =
1140                     pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1141
1142             pp_packets[i_packet]->p_next = NULL;
1143             pp_packets[i_packet]->b_discard_payload = 0;
1144
1145             i_packet++;
1146             i_pos += i_packet_size + 6;
1147         }
1148     }
1149
1150     pp_packets[i_packet] = NULL;
1151
1152     vlc_mutex_lock( &p_input->stream.stream_lock );
1153
1154     p_input->stream.p_selected_area->i_tell += i_read_bytes;
1155     b_eof = !( p_input->stream.p_selected_area->i_tell < p_dvd->i_size );
1156
1157     vlc_mutex_unlock( &p_input->stream.stream_lock );
1158
1159     if( ( i_read_blocks == i_block_once ) && ( !b_eof ) )
1160     {
1161         return 0;
1162     }
1163     else
1164     {
1165         return 1;
1166     }
1167 #undef title
1168 }
1169
1170
1171 /*****************************************************************************
1172  * DVDRewind : reads a stream backward
1173  *****************************************************************************/
1174 static int DVDRewind( input_thread_t * p_input )
1175 {
1176     return( -1 );
1177 }
1178
1179 /*****************************************************************************
1180  * DVDSeek : Goes to a given position on the stream ; this one is used by the
1181  * input and translate chronological position from input to logical postion
1182  * on the device
1183  * ---
1184  * The lock should be taken before calling this function.
1185  *****************************************************************************/
1186 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1187 {
1188     thread_dvd_data_t *     p_dvd;
1189     off_t                   i_pos;
1190     int                     i_prg_cell;
1191     int                     i_cell;
1192     int                     i_chapter;
1193
1194     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1195 #define title \
1196     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1197
1198     /* we have to take care of offset of beginning of title */
1199     i_pos = i_off + p_input->stream.p_selected_area->i_start
1200                   - p_dvd->i_title_start;
1201
1202     /* update navigation data */
1203     p_dvd->i_sector = i_pos >> 11;
1204
1205     i_prg_cell = 0;
1206     i_chapter = 1;
1207
1208     /* parse vobu address map to find program cell */
1209     while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector  )
1210     {
1211         i_prg_cell++;
1212     }
1213
1214     p_dvd->i_prg_cell = i_prg_cell;
1215     p_dvd->i_cell = 0;
1216
1217     /* Find first title cell which is inside program cell */
1218     if( DVDFindCell( p_dvd ) < 0 )
1219     {
1220         intf_ErrMsg( "dvd error: cell seeking failed" );
1221         p_input->b_error = 1;
1222         return;
1223     }
1224
1225     i_cell = p_dvd->i_cell;
1226
1227 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1228     /* parse cell address map to find title cell containing sector */
1229     while( cell.i_end_sector < p_dvd->i_sector )
1230     {
1231         i_cell++;
1232     }
1233
1234     p_dvd->i_cell = i_cell;
1235
1236     p_dvd->i_end_sector = MIN(
1237             cell.i_end_sector,
1238             title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1239
1240     /* update chapter */
1241     while( title.chapter_map.pi_start_cell[i_chapter-1] <= p_dvd->i_prg_cell )
1242     {
1243         i_chapter++;
1244     }
1245
1246     p_dvd->i_chapter = i_chapter;
1247     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1248
1249     p_input->stream.p_selected_area->i_tell =
1250                 lseek( p_dvd->i_fd, p_dvd->i_title_start +
1251                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET ) -
1252                 p_input->stream.p_selected_area->i_start;
1253
1254     intf_WarnMsg( 1, "Program Cell: %d Cell: %d Chapter: %d",
1255                      i_prg_cell, i_cell, p_dvd->i_chapter );
1256
1257     return;
1258 }