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 1.42 2001/04/11 04:31:59 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-css
  39 #else /* HAVE_CSS */
  40 #define MODULE_NAME dvd-nocss
  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 #undef title
 423
 424     return 0;
 425 }
 426
 427 /*****************************************************************************
 428  * DVDChapterSelect: find the cell corresponding to requested chapter
 429  * When called to find chapter 1, also sets title size and end.
 430  *****************************************************************************/
 431 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
 432 {
 433 #define title \
 434         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 435
 436     /* Find cell index in Program chain for current chapter */
 437     p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
 438     p_dvd->i_cell = 0;
 439     p_dvd->i_sector = 0;
 440
 441     /* Search for cell_index in cell adress_table and initialize start sector */
 442     DVDFindSector( p_dvd );
 443
 444     /* start is : beginning of vts vobs + offset to vob x */
 445     p_dvd->i_start = p_dvd->i_title_start +
 446                      DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
 447
 448     /* Position the fd pointer on the right address */
 449     p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
 450
 451     p_dvd->i_chapter = i_chapter;
 452 #undef title
 453     return 0;
 454 }
 455
 456 /*****************************************************************************
 457  * DVDSetArea: initialize input data for title x, chapter y.
 458  * It should be called for each user navigation request, and to change
 459  * audio or sub-picture streams.
 460  * ---
 461  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 462  * i_audio, i_spu start from 1 ; 0 means off.
 463  * A negative value for an argument means it does not change
 464  *****************************************************************************/
 465 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
 466 {
 467     thread_dvd_data_t *  p_dvd;
 468     es_descriptor_t *    p_es;
 469     int                  i_audio;
 470     int                  i_spu;
 471     u16                  i_id;
 472     u8                   i_ac3;
 473     u8                   i_mpeg;
 474     u8                   i_sub_pic;
 475     u8                   i;
 476     int                  j;
 477     boolean_t            b_last;
 478
 479     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 480
 481     vlc_mutex_lock( &p_input->stream.stream_lock );
 482
 483     if( p_area != p_input->stream.p_selected_area )
 484     {
 485
 486         /*
 487          *  We have to load all title information
 488          */
 489         /* Change the default area */
 490         p_input->stream.p_selected_area =
 491                     p_input->stream.pp_areas[p_area->i_id];
 492
 493         /* title number: it is not vts nb!,
 494          * it is what appears in the interface list */
 495         p_dvd->i_title = p_area->i_id;
 496         p_dvd->p_ifo->i_title = p_dvd->i_title;
 497
 498         /* ifo vts */
 499         if( IfoTitleSet( p_dvd->p_ifo ) < 0 )
 500         {
 501             intf_ErrMsg( "dvd error: fatal error in vts ifo" );
 502             free( p_dvd );
 503             p_input->b_error = 1;
 504             return -1;
 505         }
 506
 507 //intf_WarnMsg( 3, "cell nb %d", p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb );
 508 #define vmg p_dvd->p_ifo->vmg
 509 #define vts p_dvd->p_ifo->vts
 510         /* title position inside the selected vts */
 511         p_dvd->i_vts_title =
 512                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
 513         p_dvd->i_program_chain =
 514           vts.title_inf.p_title_start[p_dvd->i_vts_title-1].i_program_chain_num;
 515
 516         intf_WarnMsg( 1, "dvd: title %d vts_title %d pgc %d",
 517                         p_dvd->i_title,
 518                         p_dvd->i_vts_title,
 519                         p_dvd->i_program_chain );
 520
 521         /* css title key for current vts */
 522         if( p_dvd->b_encrypted )
 523         {
 524             /* this one is vts number */
 525             p_dvd->p_css->i_title =
 526                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_set_num;
 527             p_dvd->p_css->i_title_pos =
 528                     vts.i_pos +
 529                     vts.manager_inf.i_title_vob_start_sector * DVD_LB_SIZE;
 530
 531             j = CSSGetKey( p_input->i_handle, p_dvd->p_css );
 532             if( j < 0 )
 533             {
 534                 intf_ErrMsg( "dvd error: fatal error in vts css key" );
 535                 free( p_dvd );
 536                 p_input->b_error = 1;
 537                 return -1;
 538             }
 539             else if( j > 0 )
 540             {
 541                 intf_ErrMsg( "dvd error: css decryption unavailable" );
 542                 free( p_dvd );
 543                 p_input->b_error = 1;
 544                 return -1;
 545             }
 546         }
 547
 548         /*
 549          * Set selected title start and size
 550          */
 551
 552         /* title set offset */
 553         p_dvd->i_title_start = vts.i_pos + DVD_LB_SIZE *
 554                       (off_t)( vts.manager_inf.i_title_vob_start_sector );
 555
 556         /* last video cell */
 557         p_dvd->i_cell = 0;
 558         p_dvd->i_prg_cell = -1 +
 559             vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb;
 560
 561 intf_WarnMsg( 3, "cell nb %d", vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb );
 562
 563         DVDFindCell( p_dvd );
 564
 565         /* temporary hack to fix size in some dvds */
 566         if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
 567         {
 568             p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
 569         }
 570
 571         p_dvd->i_sector = 0;
 572         p_dvd->i_size = DVD_LB_SIZE *
 573           (off_t)( vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector );
 574
 575         DVDChapterSelect( p_dvd, 1 );
 576
 577         p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
 578
 579         intf_WarnMsg( 2, "dvd info: title: %d", p_dvd->i_title );
 580         intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
 581         intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
 582         intf_WarnMsg( 2, "dvd info: number of chapters: %d",
 583                    vmg.title_inf.p_attr[p_dvd->i_title-1].i_chapter_nb );
 584
 585         /* Area definition */
 586         p_input->stream.p_selected_area->i_start = p_dvd->i_start;
 587         p_input->stream.p_selected_area->i_size = p_dvd->i_size;
 588
 589         /*
 590          * Destroy obsolete ES by reinitializing program 0
 591          * and find all ES in title with ifo data
 592          */
 593         if( p_input->stream.pp_programs != NULL )
 594         {
 595             /* We don't use input_EndStream here since
 596              * we keep area structures */
 597
 598             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 599             {
 600                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 601             }
 602
 603             input_DelProgram( p_input, p_input->stream.pp_programs[0] );
 604
 605             p_input->stream.pp_selected_es = NULL;
 606             p_input->stream.i_selected_es_number = 0;
 607         }
 608
 609         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 610
 611         /* No PSM to read in DVD mode, we already have all information */
 612         p_input->stream.pp_programs[0]->b_is_ok = 1;
 613         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
 614
 615         p_es = NULL;
 616
 617         /* ES 0 -> video MPEG2 */
 618         p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
 619         p_es->i_stream_id = 0xe0;
 620         p_es->i_type = MPEG2_VIDEO_ES;
 621         p_es->i_cat = VIDEO_ES;
 622         intf_WarnMsg( 1, "dvd info: video mpeg2 stream" );
 623         if( p_main->b_video )
 624         {
 625             input_SelectES( p_input, p_es );
 626         }
 627
 628         /* Audio ES, in the order they appear in .ifo */
 629
 630         i_ac3 = 0x7f;
 631         i_mpeg = 0xc0;
 632
 633         for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
 634         {
 635
 636 #ifdef DEBUG
 637         intf_WarnMsg( 1, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x", i,
 638             vts.manager_inf.p_audio_attr[i-1].i_num_channels,
 639             vts.manager_inf.p_audio_attr[i-1].i_coding_mode,
 640             vts.manager_inf.p_audio_attr[i-1].i_multichannel_extension,
 641             vts.manager_inf.p_audio_attr[i-1].i_type,
 642             vts.manager_inf.p_audio_attr[i-1].i_appl_mode,
 643             vts.manager_inf.p_audio_attr[i-1].i_foo,
 644             vts.manager_inf.p_audio_attr[i-1].i_test,
 645             vts.manager_inf.p_audio_attr[i-1].i_bar,
 646             vts.manager_inf.p_audio_attr[i-1].i_quantization,
 647             vts.manager_inf.p_audio_attr[i-1].i_sample_freq,
 648             vts.manager_inf.p_audio_attr[i-1].i_lang_code,
 649             vts.manager_inf.p_audio_attr[i-1].i_caption );
 650 #endif
 651
 652             switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
 653             {
 654             case 0x00:              /* AC3 */
 655                 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
 656                 p_es = input_AddES( p_input,
 657                                     p_input->stream.pp_programs[0], i_id, 0 );
 658                 p_es->i_stream_id = 0xbd;
 659                 p_es->i_type = AC3_AUDIO_ES;
 660                 p_es->b_audio = 1;
 661                 p_es->i_cat = AUDIO_ES;
 662                 strcpy( p_es->psz_desc, Language( hton16(
 663                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 664                 strcat( p_es->psz_desc, " (ac3)" );
 665
 666                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 667                               i, p_es->psz_desc, i_id );
 668
 669                 break;
 670             case 0x02:
 671             case 0x03:              /* MPEG audio */
 672                 i_id = 0xbf + i;
 673                 p_es = input_AddES( p_input,
 674                                     p_input->stream.pp_programs[0], i_id, 0 );
 675                 p_es->i_stream_id = i_id;
 676                 p_es->i_type = MPEG2_AUDIO_ES;
 677                 p_es->b_audio = 1;
 678                 p_es->i_cat = AUDIO_ES;
 679                 strcpy( p_es->psz_desc, Language( hton16(
 680                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 681                 strcat( p_es->psz_desc, " (mpeg)" );
 682
 683                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 684                               i, p_es->psz_desc, i_id );
 685
 686                 break;
 687             case 0x04:              /* LPCM */
 688                 i_id = 0;
 689                 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
 690                 break;
 691             case 0x06:              /* DTS */
 692                 i_id = 0;
 693                 i_ac3--;
 694                 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
 695                 break;
 696             default:
 697                 i_id = 0;
 698                 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 699                          vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
 700             }
 701
 702         }
 703
 704         /* Sub Picture ES */
 705
 706         b_last = 0;
 707         i_sub_pic = 0x20;
 708         for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
 709         {
 710             if( !b_last )
 711             {
 712                 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
 713                 p_es = input_AddES( p_input,
 714                                     p_input->stream.pp_programs[0], i_id, 0 );
 715                 p_es->i_stream_id = 0xbd;
 716                 p_es->i_type = DVD_SPU_ES;
 717                 p_es->i_cat = SPU_ES;
 718                 strcpy( p_es->psz_desc, Language( hton16(
 719                     vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
 720                 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
 721                               i, p_es->psz_desc, i_id );
 722
 723                 /* The before the last spu has a 0x0 prefix */
 724                 b_last =
 725                     ( vts.manager_inf.p_spu_attr[i].i_prefix == 0 );
 726             }
 727         }
 728
 729         if( p_main->b_audio )
 730         {
 731             /* For audio: first one if none or a not existing one specified */
 732             i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 733             if( i_audio < 0 || i_audio > vts.manager_inf.i_audio_nb )
 734             {
 735                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 736                 i_audio = 1;
 737             }
 738             if( i_audio > 0 && vts.manager_inf.i_audio_nb > 0 )
 739             {
 740                 input_SelectES( p_input, p_input->stream.pp_es[i_audio] );
 741             }
 742         }
 743
 744         if( p_main->b_video )
 745         {
 746             /* for spu, default is none */
 747             i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 748             if( i_spu < 0 || i_spu > vts.manager_inf.i_spu_nb )
 749             {
 750                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 751                 i_spu = 0;
 752             }
 753             if( i_spu > 0 && vts.manager_inf.i_spu_nb > 0 )
 754             {
 755                 i_spu += vts.manager_inf.i_audio_nb;
 756                 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 757             }
 758         }
 759     } /* i_title >= 0 */
 760     else
 761     {
 762         p_area = p_input->stream.p_selected_area;
 763     }
 764
 765     /*
 766      * Chapter selection
 767      */
 768
 769     if( ( p_area->i_part > 0 ) &&
 770         ( p_area->i_part <= p_area->i_part_nb ) )
 771     {
 772         DVDChapterSelect( p_dvd, p_area->i_part );
 773
 774         p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
 775                                                   p_area->i_start;
 776         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 777
 778         intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld",
 779                                     p_area->i_part, p_area->i_tell );
 780     }
 781
 782     vlc_mutex_unlock( &p_input->stream.stream_lock );
 783 #undef vts
 784 #undef vmg
 785
 786     return 0;
 787 }
 788
 789 /*****************************************************************************
 790  * DVDInit: initializes DVD structures
 791  *****************************************************************************/
 792 static void DVDInit( input_thread_t * p_input )
 793 {
 794     thread_dvd_data_t *  p_dvd;
 795     input_area_t *       p_area;
 796     int                  i_title;
 797     int                  i_chapter;
 798     int                  i;
 799
 800     /* I don't want DVDs to start playing immediately */
 801 //    p_input->stream.i_new_status = PAUSE_S;
 802
 803     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 804     if( p_dvd == NULL )
 805     {
 806         intf_ErrMsg( "dvd error: out of memory" );
 807         p_input->b_error = 1;
 808         return;
 809     }
 810
 811     p_input->p_plugin_data = (void *)p_dvd;
 812     p_input->p_method_data = NULL;
 813
 814     p_dvd->i_fd = p_input->i_handle;
 815
 816     /* reading several block once seems to cause lock-up
 817      * when using input_ToggleES
 818      * who wrote thez damn buggy piece of shit ??? --stef */
 819     p_dvd->i_block_once = 1;//32;
 820     p_input->i_read_once = 8;//128;
 821
 822     i = CSSTest( p_input->i_handle );
 823
 824     if( i < 0 )
 825     {
 826         free( p_dvd );
 827         p_input->b_error = 1;
 828         return;
 829     }
 830
 831     p_dvd->b_encrypted = i;
 832
 833     lseek( p_input->i_handle, 0, SEEK_SET );
 834
 835     /* Reading structures initialisation */
 836     p_input->p_method_data =
 837         DVDNetlistInit( 2048, 8192, 2048, DVD_LB_SIZE, p_dvd->i_block_once );
 838     intf_WarnMsg( 2, "dvd info: netlist initialized" );
 839
 840     /* Ifo allocation & initialisation */
 841     if( IfoCreate( p_dvd ) < 0 )
 842     {
 843         intf_ErrMsg( "dvd error: allcation error in IFO" );
 844         p_input->b_error = 1;
 845         return;
 846     }
 847
 848     if( IfoInit( p_dvd->p_ifo ) < 0 )
 849     {
 850         intf_ErrMsg( "dvd error: fatal failure in IFO" );
 851         free( p_dvd );
 852         p_input->b_error = 1;
 853         return;
 854     }
 855
 856     /* CSS initialisation */
 857     if( p_dvd->b_encrypted )
 858     {
 859         p_dvd->p_css = malloc( sizeof(css_t) );
 860         if( p_dvd->p_css == NULL )
 861         {
 862             intf_ErrMsg( "dvd error: couldn't create CSS structure" );
 863             free( p_dvd );
 864             p_input->b_error = 1;
 865             return;
 866         }
 867
 868         if( CSSInit( p_input->i_handle, p_dvd->p_css ) < 0 )
 869         {
 870             intf_ErrMsg( "dvd error: fatal failure in CSS" );
 871             free( p_dvd->p_css );
 872             free( p_dvd );
 873             p_input->b_error = 1;
 874             return;
 875         }
 876
 877         intf_WarnMsg( 2, "dvd info: CSS initialized" );
 878     }
 879
 880     /* Set stream and area data */
 881     vlc_mutex_lock( &p_input->stream.stream_lock );
 882
 883     /* Initialize ES structures */
 884     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 885
 886 #define title_inf p_dvd->p_ifo->vmg.title_inf
 887     intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
 888
 889 #define area p_input->stream.pp_areas
 890     /* We start from 1 here since area 0 is reserved for video_ts.vob */
 891     for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
 892     {
 893         input_AddArea( p_input );
 894
 895         /* Titles are Program Chains */
 896         area[i]->i_id = i;
 897
 898         /* Absolute start offset and size
 899          * We can only set that with vts ifo, so we do it during the
 900          * first call to DVDSetArea */
 901         area[i]->i_start = 0;
 902         area[i]->i_size = 0;
 903
 904         /* Number of chapters */
 905         area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
 906         area[i]->i_part = 1;
 907
 908         /* Offset to vts_i_0.ifo */
 909         area[i]->i_plugin_data = p_dvd->p_ifo->i_off +
 910                        ( title_inf.p_attr[i-1].i_start_sector * DVD_LB_SIZE );
 911     }
 912 #undef area
 913
 914     /* Get requested title - if none try the first title */
 915     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 916     if( i_title <= 0 || i_title > title_inf.i_title_nb )
 917     {
 918         i_title = 1;
 919     }
 920 #undef title_inf
 921     /* Get requested chapter - if none defaults to first one */
 922     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 923     if( i_chapter <= 0 )
 924     {
 925         i_chapter = 1;
 926     }
 927
 928     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 929
 930     p_area = p_input->stream.pp_areas[i_title];
 931
 932     vlc_mutex_unlock( &p_input->stream.stream_lock );
 933
 934     /* set title, chapter, audio and subpic */
 935     DVDSetArea( p_input, p_area );
 936
 937     return;
 938 }
 939
 940 /*****************************************************************************
 941  * DVDEnd: frees unused data
 942  *****************************************************************************/
 943 static void DVDEnd( input_thread_t * p_input )
 944 {
 945     thread_dvd_data_t *     p_dvd;
 946     dvd_netlist_t *         p_netlist;
 947
 948     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 949     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
 950
 951     if( p_dvd->b_encrypted )
 952     {
 953         free( p_dvd->p_css );
 954     }
 955
 956     IfoEnd( p_dvd->p_ifo );
 957     free( p_dvd );
 958     DVDNetlistEnd( p_netlist );
 959 }
 960
 961 /*****************************************************************************
 962  * DVDRead: reads data packets into the netlist.
 963  *****************************************************************************
 964  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 965  * EOF.
 966  *****************************************************************************/
 967 static int DVDRead( input_thread_t * p_input,
 968                     data_packet_t ** pp_packets )
 969 {
 970     thread_dvd_data_t *     p_dvd;
 971     dvd_netlist_t *         p_netlist;
 972     struct iovec *          p_vec;
 973     struct data_packet_s *  pp_data[p_input->i_read_once];
 974     u8 *                    pi_cur;
 975     int                     i_block_once;
 976     int                     i_packet_size;
 977     int                     i_iovec;
 978     int                     i_packet;
 979     int                     i_pos;
 980     int                     i_read_bytes;
 981     int                     i_read_blocks;
 982     off_t                   i_off;
 983     boolean_t               b_eof;
 984
 985     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 986     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
 987 #define title \
 988     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 989
 990     /* Get an iovec pointer */
 991     if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
 992     {
 993         intf_ErrMsg( "DVD: read error" );
 994         return -1;
 995     }
 996
 997     i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 998
 999     /* Get the position of the next cell if we're at cell end */
1000     if( i_block_once <= 0 )
1001     {
1002         p_dvd->i_cell++;
1003
1004         /* Find cell index in adress map */
1005         if( DVDFindSector( p_dvd ) < 0 )
1006         {
1007             pp_packets[0] = NULL;
1008             intf_ErrMsg( "dvd error: can't find next cell" );
1009             return 1;
1010         }
1011
1012         /* Position the fd pointer on the right address */
1013         i_off = lseek( p_dvd->i_fd,
1014                        p_dvd->i_title_start +
1015                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET );
1016
1017         /* update chapter : it will be easier when we have navigation
1018          * ES support */
1019         if( title.chapter_map.pi_start_cell[p_dvd->i_chapter-1] <=
1020             p_dvd->i_prg_cell )
1021         {
1022             p_dvd->i_chapter++;
1023         }
1024
1025         vlc_mutex_lock( &p_input->stream.stream_lock );
1026
1027         p_input->stream.p_selected_area->i_tell = i_off -
1028                                     p_input->stream.p_selected_area->i_start;
1029         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1030
1031         /* the synchro has to be reinitialized when we change cell */
1032         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
1033
1034         vlc_mutex_unlock( &p_input->stream.stream_lock );
1035
1036         i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
1037     }
1038
1039     /* the number of blocks read is the maw between the requested
1040      * value and the leaving block in the cell */
1041     if( i_block_once > p_dvd->i_block_once )
1042     {
1043         i_block_once = p_dvd->i_block_once;
1044     }
1045 //intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
1046
1047     p_netlist->i_read_once = i_block_once;
1048
1049     /* Reads from DVD */
1050     i_read_bytes = readv( p_dvd->i_fd, p_vec, i_block_once );
1051     i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
1052
1053     /* Update netlist indexes */
1054     DVDMviovec( p_netlist, i_read_blocks, pp_data );
1055
1056     /* Update global position */
1057     p_dvd->i_sector += i_read_blocks;
1058
1059     i_packet = 0;
1060
1061     /* Read headers to compute payload length */
1062     for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
1063     {
1064         if( p_dvd->b_encrypted )
1065         {
1066             CSSDescrambleSector( p_dvd->p_css->pi_title_key,
1067                                  p_vec[i_iovec].iov_base );
1068             ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
1069         }
1070
1071         i_pos = 0;
1072
1073         while( i_pos < p_netlist->i_buffer_size )
1074         {
1075             pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
1076
1077             /*default header */
1078             if( U32_AT( pi_cur ) != 0x1BA )
1079             {
1080                 /* That's the case for all packets, except pack header. */
1081                 i_packet_size = U16_AT( pi_cur + 4 );
1082                 pp_packets[i_packet] = DVDNewPtr( p_netlist );
1083             }
1084             else
1085             {
1086                 /* Pack header. */
1087                 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
1088                 {
1089                     /* MPEG-2 */
1090                     i_packet_size = 8;
1091                 }
1092                 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1093                 {
1094                     /* MPEG-1 */
1095                     i_packet_size = 6;
1096                 }
1097                 else
1098                 {
1099                     intf_ErrMsg( "Unable to determine stream type" );
1100                     return( -1 );
1101                 }
1102
1103                 pp_packets[i_packet] = pp_data[i_iovec];
1104
1105             }
1106
1107             (*pp_data[i_iovec]->pi_refcount)++;
1108
1109             pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1110
1111             pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1112
1113             pp_packets[i_packet]->p_payload_start =
1114                     pp_packets[i_packet]->p_buffer + i_pos;
1115
1116             pp_packets[i_packet]->p_payload_end =
1117                     pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1118
1119             pp_packets[i_packet]->p_next = NULL;
1120             pp_packets[i_packet]->b_discard_payload = 0;
1121
1122             i_packet++;
1123             i_pos += i_packet_size + 6;
1124         }
1125     }
1126
1127     pp_packets[i_packet] = NULL;
1128
1129     vlc_mutex_lock( &p_input->stream.stream_lock );
1130
1131     p_input->stream.p_selected_area->i_tell += i_read_bytes;
1132     b_eof = p_input->stream.p_selected_area->i_tell < p_dvd->i_size ? 0 : 1;
1133
1134     vlc_mutex_unlock( &p_input->stream.stream_lock );
1135
1136     if( ( i_read_blocks == i_block_once ) && ( !b_eof ) )
1137     {
1138         return 0;
1139     }
1140     else
1141     {
1142         return 1;
1143     }
1144 #undef title
1145 }
1146
1147
1148 /*****************************************************************************
1149  * DVDRewind : reads a stream backward
1150  *****************************************************************************/
1151 static int DVDRewind( input_thread_t * p_input )
1152 {
1153     return( -1 );
1154 }
1155
1156 /*****************************************************************************
1157  * DVDSeek : Goes to a given position on the stream ; this one is used by the
1158  * input and translate chronological position from input to logical postion
1159  * on the device
1160  * ---
1161  * The lock should be taken before calling this function.
1162  *****************************************************************************/
1163 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1164 {
1165     thread_dvd_data_t *     p_dvd;
1166     off_t                   i_pos;
1167     int                     i_prg_cell;
1168     int                     i_cell;
1169     int                     i_chapter;
1170
1171     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1172 #define title \
1173     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1174
1175     /* we have to take care of offset of beginning of title */
1176     i_pos = i_off + p_input->stream.p_selected_area->i_start
1177                   - p_dvd->i_title_start;
1178
1179     /* update navigation data */
1180     p_dvd->i_sector = i_pos >> 11;
1181
1182     i_prg_cell = 0;
1183     i_chapter = 1;
1184
1185     /* parse vobu address map to find program cell */
1186     while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector  )
1187     {
1188         i_prg_cell++;
1189     }
1190
1191     p_dvd->i_prg_cell = i_prg_cell;
1192     p_dvd->i_cell = 0;
1193
1194     /* Find first title cell which is inside program cell */
1195     DVDFindCell( p_dvd );
1196
1197     i_cell = p_dvd->i_cell;
1198 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1199     /* parse cell address map to find title cell containing sector */
1200     while( cell.i_end_sector < p_dvd->i_sector )
1201     {
1202         i_cell++;
1203     }
1204
1205     p_dvd->i_cell = i_cell;
1206
1207     p_dvd->i_end_sector = MIN(
1208             cell.i_end_sector,
1209             title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1210
1211     /* update chapter */
1212     while( title.chapter_map.pi_start_cell[i_chapter-1] <= p_dvd->i_prg_cell )
1213     {
1214         i_chapter++;
1215     }
1216
1217     p_dvd->i_chapter = i_chapter;
1218     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1219
1220     p_input->stream.p_selected_area->i_tell =
1221                 lseek( p_dvd->i_fd, p_dvd->i_title_start +
1222                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET ) -
1223                 p_input->stream.p_selected_area->i_start;
1224
1225     intf_WarnMsg( 1, "Program Cell: %d Cell: %d Chapter: %d",
1226                      i_prg_cell, i_cell, p_dvd->i_chapter );
1227
1228     return;
1229 }