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 1.39 2001/04/08 09:04:33 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-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     if( i_cell == cell.i_cell_nb )
 367     {
 368         intf_ErrMsg( "dvd error: can't find cell" );
 369         return -1;
 370     }
 371     else
 372     {
 373         p_dvd->i_cell = i_cell;
 374         return 0;
 375     }
 376 #undef title
 377 #undef cell
 378 }
 379
 380 /*****************************************************************************
 381  * DVDFindSector: find cell index in adress map from index in
 382  * information table program map and give corresponding sectors.
 383  *****************************************************************************/
 384 static int DVDFindSector( thread_dvd_data_t * p_dvd )
 385 {
 386 #define title \
 387         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 388
 389     if( p_dvd->i_sector > title.p_cell_play[p_dvd->i_prg_cell].i_end_sector )
 390     {
 391         p_dvd->i_prg_cell++;
 392     }
 393
 394     if( DVDFindCell( p_dvd ) < 0 )
 395     {
 396         intf_ErrMsg( "dvd error: can't find sector" );
 397         return -1;
 398     }
 399
 400     /* Find start and end sectors of new cell */
 401     p_dvd->i_sector = MAX(
 402          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
 403          title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
 404     p_dvd->i_end_sector = MIN(
 405          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
 406          title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
 407
 408 //intf_WarnMsg( 3, "cell: %d sector1: 0x%x end1: 0x%x\nindex: %d sector2: 0x%x end2: 0x%x", p_dvd->i_cell, p_dvd->p_ifo->p_vts->c_adt.p_cell_inf[p_dvd->i_cell].i_ssector, p_dvd->p_ifo->p_vts->c_adt.p_cell_inf[p_dvd->i_cell].i_esector, p_dvd->i_prg_cell, p_pgc->p_cell_play_inf[p_dvd->i_prg_cell].i_entry_sector, p_pgc->p_cell_play_inf[p_dvd->i_prg_cell].i_lsector );
 409 #undef title
 410
 411     return 0;
 412 }
 413
 414 /*****************************************************************************
 415  * DVDChapterSelect: find the cell corresponding to requested chapter
 416  * When called to find chapter 1, also sets title size and end.
 417  *****************************************************************************/
 418 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
 419 {
 420 #define title \
 421         p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 422
 423     /* Find cell index in Program chain for current chapter */
 424     p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
 425     p_dvd->i_cell = 0;
 426     p_dvd->i_sector = 0;
 427
 428     /* Search for cell_index in cell adress_table and initialize start sector */
 429     DVDFindSector( p_dvd );
 430
 431     /* start is : beginning of vts vobs + offset to vob x */
 432     p_dvd->i_start = p_dvd->i_title_start +
 433                      DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
 434
 435     /* Position the fd pointer on the right address */
 436     p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
 437
 438     p_dvd->i_chapter = i_chapter;
 439 #undef title
 440     return 0;
 441 }
 442
 443 /*****************************************************************************
 444  * DVDSetArea: initialize input data for title x, chapter y.
 445  * It should be called for each user navigation request, and to change
 446  * audio or sub-picture streams.
 447  * ---
 448  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 449  * i_audio, i_spu start from 1 ; 0 means off.
 450  * A negative value for an argument means it does not change
 451  *****************************************************************************/
 452 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
 453 {
 454     thread_dvd_data_t *  p_dvd;
 455     es_descriptor_t *    p_es;
 456     int                  i_audio;
 457     int                  i_spu;
 458     u16                  i_id;
 459     u8                   i_ac3;
 460     u8                   i_mpeg;
 461     u8                   i_sub_pic;
 462     u8                   i;
 463     boolean_t            b_last;
 464
 465     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 466
 467     vlc_mutex_lock( &p_input->stream.stream_lock );
 468
 469     if( p_area != p_input->stream.p_selected_area )
 470     {
 471
 472         /*
 473          *  We have to load all title information
 474          */
 475         /* Change the default area */
 476         p_input->stream.p_selected_area =
 477                     p_input->stream.pp_areas[p_area->i_id];
 478
 479         /* title number: it is not vts nb! */
 480         p_dvd->i_title = p_area->i_id;
 481         p_dvd->p_ifo->i_title = p_dvd->i_title;
 482
 483         /* ifo vts */
 484         IfoTitleSet( p_dvd->p_ifo );
 485         intf_WarnMsg( 2, "ifo info: vts initialized" );
 486
 487 #define vmg p_dvd->p_ifo->vmg
 488 #define vts p_dvd->p_ifo->vts
 489         /* title position inside the selected vts */
 490         p_dvd->i_vts_title =
 491                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
 492         p_dvd->i_program_chain =
 493           vts.title_inf.p_title_start[p_dvd->i_vts_title-1].i_program_chain_num;
 494
 495         /* css title key for current vts */
 496         if( p_dvd->b_encrypted )
 497         {
 498             p_dvd->p_css->i_title =
 499                     vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_set_num;
 500             p_dvd->p_css->i_title_pos =
 501                     vts.i_pos +
 502                     vts.manager_inf.i_title_vob_start_sector * DVD_LB_SIZE;
 503             CSSGetKey( p_dvd->p_css );
 504             intf_WarnMsg( 2, "css info: vts key initialized" );
 505         }
 506
 507         /*
 508          * Set selected title start and size
 509          */
 510
 511         /* title set offset */
 512         p_dvd->i_title_start = vts.i_pos + DVD_LB_SIZE *
 513                       (off_t)( vts.manager_inf.i_title_vob_start_sector );
 514
 515         /* last video cell */
 516         p_dvd->i_cell = 0;
 517         p_dvd->i_prg_cell = -1 +
 518             vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb;
 519         DVDFindCell( p_dvd );
 520
 521         /* temporary hack to fix size in some dvds */
 522         if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
 523         {
 524             p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
 525         }
 526
 527         p_dvd->i_sector = 0;
 528         p_dvd->i_size = DVD_LB_SIZE *
 529           (off_t)( vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector );
 530
 531         DVDChapterSelect( p_dvd, 1 );
 532
 533         p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
 534
 535         intf_WarnMsg( 2, "dvd info: title: %d", p_dvd->i_title );
 536         intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
 537         intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
 538         intf_WarnMsg( 2, "dvd info: number of chapters: %d",
 539                    vmg.title_inf.p_attr[p_dvd->i_title-1].i_chapter_nb );
 540
 541         /* Area definition */
 542         p_input->stream.p_selected_area->i_start = p_dvd->i_start;
 543         p_input->stream.p_selected_area->i_size = p_dvd->i_size;
 544
 545         /*
 546          * Destroy obsolete ES by reinitializing program 0
 547          * and find all ES in title with ifo data
 548          */
 549         if( p_input->stream.pp_programs != NULL )
 550         {
 551             /* We don't use input_EndStream here since
 552              * we keep area structures */
 553
 554             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 555             {
 556                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 557             }
 558
 559             input_DelProgram( p_input, p_input->stream.pp_programs[0] );
 560
 561             p_input->stream.pp_selected_es = NULL;
 562             p_input->stream.i_selected_es_number = 0;
 563         }
 564
 565         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 566
 567         /* No PSM to read in DVD mode, we already have all information */
 568         p_input->stream.pp_programs[0]->b_is_ok = 1;
 569         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
 570
 571         p_es = NULL;
 572
 573         /* ES 0 -> video MPEG2 */
 574         p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
 575         p_es->i_stream_id = 0xe0;
 576         p_es->i_type = MPEG2_VIDEO_ES;
 577         p_es->i_cat = VIDEO_ES;
 578         input_SelectES( p_input, p_es );
 579         intf_WarnMsg( 1, "dvd info: video MPEG2 stream" );
 580
 581         /* Audio ES, in the order they appear in .ifo */
 582
 583         i_ac3 = 0x7f;
 584         i_mpeg = 0xc0;
 585
 586         for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
 587         {
 588
 589 #ifdef DEBUG
 590         intf_WarnMsg( 1, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x", i,
 591             vts.manager_inf.p_audio_attr[i-1].i_num_channels,
 592             vts.manager_inf.p_audio_attr[i-1].i_coding_mode,
 593             vts.manager_inf.p_audio_attr[i-1].i_multichannel_extension,
 594             vts.manager_inf.p_audio_attr[i-1].i_type,
 595             vts.manager_inf.p_audio_attr[i-1].i_appl_mode,
 596             vts.manager_inf.p_audio_attr[i-1].i_foo,
 597             vts.manager_inf.p_audio_attr[i-1].i_test,
 598             vts.manager_inf.p_audio_attr[i-1].i_bar,
 599             vts.manager_inf.p_audio_attr[i-1].i_quantization,
 600             vts.manager_inf.p_audio_attr[i-1].i_sample_freq,
 601             vts.manager_inf.p_audio_attr[i-1].i_lang_code,
 602             vts.manager_inf.p_audio_attr[i-1].i_caption );
 603 #endif
 604
 605             switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
 606             {
 607             case 0x00:              /* AC3 */
 608                 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
 609                 p_es = input_AddES( p_input,
 610                                     p_input->stream.pp_programs[0], i_id, 0 );
 611                 p_es->i_stream_id = 0xbd;
 612                 p_es->i_type = AC3_AUDIO_ES;
 613                 p_es->b_audio = 1;
 614                 p_es->i_cat = AUDIO_ES;
 615                 strcpy( p_es->psz_desc, Language( hton16(
 616                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 617                 strcat( p_es->psz_desc, " (ac3)" );
 618
 619                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 620                               i, p_es->psz_desc, i_id );
 621
 622                 break;
 623             case 0x02:
 624             case 0x03:              /* MPEG audio */
 625                 i_id = 0xbf + i;
 626                 p_es = input_AddES( p_input,
 627                                     p_input->stream.pp_programs[0], i_id, 0 );
 628                 p_es->i_stream_id = i_id;
 629                 p_es->i_type = MPEG2_AUDIO_ES;
 630                 p_es->b_audio = 1;
 631                 p_es->i_cat = AUDIO_ES;
 632                 strcpy( p_es->psz_desc, Language( hton16(
 633                     vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 634                 strcat( p_es->psz_desc, " (mpeg)" );
 635
 636                 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
 637                               i, p_es->psz_desc, i_id );
 638
 639                 break;
 640             case 0x04:              /* LPCM */
 641                 i_id = 0;
 642                 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
 643                 break;
 644             case 0x06:              /* DTS */
 645                 i_id = 0;
 646                 i_ac3--;
 647                 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
 648                 break;
 649             default:
 650                 i_id = 0;
 651                 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 652                          vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
 653             }
 654
 655         }
 656
 657         /* Sub Picture ES */
 658
 659         b_last = 0;
 660         i_sub_pic = 0x20;
 661         for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
 662         {
 663             if( !b_last )
 664             {
 665                 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
 666                 p_es = input_AddES( p_input,
 667                                     p_input->stream.pp_programs[0], i_id, 0 );
 668                 p_es->i_stream_id = 0xbd;
 669                 p_es->i_type = DVD_SPU_ES;
 670                 p_es->i_cat = SPU_ES;
 671                 strcpy( p_es->psz_desc, Language( hton16(
 672                     vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
 673                 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
 674                               i, p_es->psz_desc, i_id );
 675
 676                 /* The before the last spu has a 0x0 prefix */
 677                 b_last =
 678                     ( vts.manager_inf.p_spu_attr[i].i_prefix == 0 );
 679             }
 680         }
 681
 682         /* For audio: first one if none or a not existing one specified */
 683         i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 684         if( i_audio < 0 || i_audio > vts.manager_inf.i_audio_nb )
 685         {
 686             main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 687             i_audio = 1;
 688         }
 689         if( i_audio > 0 && vts.manager_inf.i_audio_nb > 0 )
 690         {
 691             input_SelectES( p_input, p_input->stream.pp_es[i_audio] );
 692         }
 693
 694         /* for spu, default is none */
 695         i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 696         if( i_spu < 0 || i_spu > vts.manager_inf.i_spu_nb )
 697         {
 698             main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 699             i_spu = 0;
 700         }
 701         if( i_spu > 0 && vts.manager_inf.i_spu_nb > 0 )
 702         {
 703             i_spu += vts.manager_inf.i_audio_nb;
 704             input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 705         }
 706     } /* i_title >= 0 */
 707     else
 708     {
 709         p_area = p_input->stream.p_selected_area;
 710     }
 711
 712     /*
 713      * Chapter selection
 714      */
 715
 716     if( ( p_area->i_part > 0 ) &&
 717         ( p_area->i_part <= p_area->i_part_nb ) )
 718     {
 719         DVDChapterSelect( p_dvd, p_area->i_part );
 720
 721         p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
 722                                                   p_area->i_start;
 723         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 724
 725         intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld",
 726                                     p_area->i_part, p_area->i_tell );
 727     }
 728
 729     vlc_mutex_unlock( &p_input->stream.stream_lock );
 730 #undef vts
 731 #undef vmg
 732     return 0;
 733 }
 734
 735 /*****************************************************************************
 736  * DVDInit: initializes DVD structures
 737  *****************************************************************************/
 738 static void DVDInit( input_thread_t * p_input )
 739 {
 740     thread_dvd_data_t *  p_dvd;
 741     int                  i_title;
 742     int                  i_chapter;
 743     int                  i;
 744
 745     /* I don't want DVDs to start playing immediately */
 746 //    p_input->stream.i_new_status = PAUSE_S;
 747
 748     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 749     if( p_dvd == NULL )
 750     {
 751         intf_ErrMsg( "dvd error: out of memory" );
 752         p_input->b_error = 1;
 753         return;
 754     }
 755
 756     p_input->p_plugin_data = (void *)p_dvd;
 757     p_input->p_method_data = NULL;
 758
 759     p_dvd->i_fd = p_input->i_handle;
 760
 761     /* reading several block once seems to cause lock-up
 762      * when using input_ToggleES
 763      * who wrote thez damn buggy piece of shit ??? --stef */
 764     p_dvd->i_block_once = 1;//32;
 765     p_input->i_read_once = 4;//128;
 766
 767     i = CSSTest( p_input->i_handle );
 768
 769     if( i < 0 )
 770     {
 771         intf_ErrMsg( "css error: could not get copyright bit" );
 772         free( p_dvd );
 773         p_input->b_error = 1;
 774         return;
 775     }
 776
 777     p_dvd->b_encrypted = i;
 778
 779     lseek( p_input->i_handle, 0, SEEK_SET );
 780
 781     /* Reading structures initialisation */
 782     p_input->p_method_data =
 783         DVDNetlistInit( 2048, 8192, 2048, DVD_LB_SIZE, p_dvd->i_block_once );
 784     intf_WarnMsg( 2, "dvd info: netlist initialized" );
 785
 786     /* Ifo initialisation */
 787     if( IfoInit( &p_dvd->p_ifo, p_input->i_handle ) < 0 )
 788     {
 789         intf_ErrMsg( "dvd error: fatal failure in IFO" );
 790         free( p_dvd );
 791         p_input->b_error = 1;
 792         return;
 793     }
 794
 795     /* CSS initialisation */
 796     if( p_dvd->b_encrypted )
 797     {
 798         p_dvd->p_css = malloc( sizeof(css_t) );
 799         if( p_dvd->p_css == NULL )
 800         {
 801             intf_ErrMsg( "dvd error: couldn't create CSS structure" );
 802             free( p_dvd );
 803             p_input->b_error = 1;
 804             return;
 805         }
 806
 807         p_dvd->p_css->i_fd = p_input->i_handle;
 808         p_dvd->p_css->i_agid = 0;
 809
 810         if( CSSInit( p_dvd->p_css ) )
 811         {
 812             intf_ErrMsg( "dvd error: fatal failure in CSS" );
 813             free( p_dvd->p_css );
 814             free( p_dvd );
 815             p_input->b_error = 1;
 816             return;
 817         }
 818
 819         intf_WarnMsg( 2, "dvd info: CSS initialized" );
 820     }
 821
 822     /* Initialize ES structures */
 823     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 824
 825     /* Set stream and area data */
 826     vlc_mutex_lock( &p_input->stream.stream_lock );
 827
 828 #define title_inf p_dvd->p_ifo->vmg.title_inf
 829     intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
 830
 831 #define area p_input->stream.pp_areas
 832     /* We start from 1 here since area 0 is reserved for video_ts.vob */
 833     for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
 834     {
 835         input_AddArea( p_input );
 836
 837         /* Titles are Program Chains */
 838         area[i]->i_id = i;
 839
 840         /* Absolute start offset and size
 841          * We can only set that with vts ifo, so we do it during the
 842          * first call to DVDSetArea */
 843         area[i]->i_start = 0;
 844         area[i]->i_size = 0;
 845
 846         /* Number of chapters */
 847         area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
 848         area[i]->i_part = 1;
 849
 850         /* Offset to vts_i_0.ifo */
 851         area[i]->i_plugin_data = p_dvd->p_ifo->i_off +
 852                        ( title_inf.p_attr[i-1].i_start_sector * DVD_LB_SIZE );
 853     }
 854 #undef area
 855
 856     vlc_mutex_unlock( &p_input->stream.stream_lock );
 857
 858     /* Get requested title - if none try the first title */
 859     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 860     if( i_title <= 0 || i_title > title_inf.i_title_nb )
 861     {
 862         i_title = 1;
 863     }
 864 #undef title_inf
 865     /* Get requested chapter - if none defaults to first one */
 866     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 867     if( i_chapter <= 0 )
 868     {
 869         i_chapter = 1;
 870     }
 871
 872     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 873
 874     /* set title, chapter, audio and subpic */
 875     DVDSetArea( p_input, p_input->stream.pp_areas[i_title] );
 876
 877     return;
 878 }
 879
 880 /*****************************************************************************
 881  * DVDEnd: frees unused data
 882  *****************************************************************************/
 883 static void DVDEnd( input_thread_t * p_input )
 884 {
 885     thread_dvd_data_t *     p_dvd;
 886     dvd_netlist_t *         p_netlist;
 887
 888     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 889     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
 890
 891     if( p_dvd->b_encrypted )
 892     {
 893         CSSEnd( p_dvd->p_css );
 894         free( p_dvd->p_css );
 895     }
 896
 897     IfoEnd( p_dvd->p_ifo );
 898     free( p_dvd );
 899     DVDNetlistEnd( p_netlist );
 900 }
 901
 902 /*****************************************************************************
 903  * DVDRead: reads data packets into the netlist.
 904  *****************************************************************************
 905  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 906  * EOF.
 907  *****************************************************************************/
 908 static int DVDRead( input_thread_t * p_input,
 909                     data_packet_t ** pp_packets )
 910 {
 911     thread_dvd_data_t *     p_dvd;
 912     dvd_netlist_t *         p_netlist;
 913     struct iovec *          p_vec;
 914     struct data_packet_s *  pp_data[p_input->i_read_once];
 915     u8 *                    pi_cur;
 916     int                     i_block_once;
 917     int                     i_packet_size;
 918     int                     i_iovec;
 919     int                     i_packet;
 920     int                     i_pos;
 921     int                     i_read_bytes;
 922     int                     i_read_blocks;
 923     off_t                   i_off;
 924     boolean_t               b_eof;
 925
 926     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 927     p_netlist = (dvd_netlist_t *)p_input->p_method_data;
 928 #define title \
 929     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
 930
 931     /* Get an iovec pointer */
 932     if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
 933     {
 934         intf_ErrMsg( "DVD: read error" );
 935         return -1;
 936     }
 937
 938     i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 939
 940     /* Get the position of the next cell if we're at cell end */
 941     if( i_block_once <= 0 )
 942     {
 943         p_dvd->i_cell++;
 944
 945         /* Find cell index in adress map */
 946         if( DVDFindSector( p_dvd ) < 0 )
 947         {
 948             pp_packets[0] = NULL;
 949             intf_ErrMsg( "dvd error: can't find next cell" );
 950             return 1;
 951         }
 952
 953         /* Position the fd pointer on the right address */
 954         i_off = lseek( p_dvd->i_fd,
 955                        p_dvd->i_title_start +
 956                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET );
 957
 958         /* update chapter : it will be easier when we have navigation
 959          * ES support */
 960         if( title.chapter_map.pi_start_cell[p_dvd->i_chapter-1] <=
 961             p_dvd->i_prg_cell )
 962         {
 963             p_dvd->i_chapter++;
 964         }
 965
 966         vlc_mutex_lock( &p_input->stream.stream_lock );
 967
 968         p_input->stream.p_selected_area->i_tell = i_off -
 969                                     p_input->stream.p_selected_area->i_start;
 970         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 971
 972         /* the synchro has to be reinitialized when we change cell */
 973         p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
 974
 975         vlc_mutex_unlock( &p_input->stream.stream_lock );
 976
 977         i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 978     }
 979
 980     /* the number of blocks read is the maw between the requested
 981      * value and the leaving block in the cell */
 982     if( i_block_once > p_dvd->i_block_once )
 983     {
 984         i_block_once = p_dvd->i_block_once;
 985     }
 986 //intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
 987
 988     p_netlist->i_read_once = i_block_once;
 989
 990     /* Reads from DVD */
 991     i_read_bytes = readv( p_dvd->i_fd, p_vec, i_block_once );
 992     i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
 993
 994     /* Update netlist indexes */
 995     DVDMviovec( p_netlist, i_read_blocks, pp_data );
 996
 997     /* Update global position */
 998     p_dvd->i_sector += i_read_blocks;
 999
1000     i_packet = 0;
1001
1002     /* Read headers to compute payload length */
1003     for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
1004     {
1005         if( p_dvd->b_encrypted )
1006         {
1007             CSSDescrambleSector( p_dvd->p_css->pi_title_key,
1008                                  p_vec[i_iovec].iov_base );
1009             ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
1010         }
1011
1012         i_pos = 0;
1013
1014         while( i_pos < p_netlist->i_buffer_size )
1015         {
1016             pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
1017
1018             /*default header */
1019             if( U32_AT( pi_cur ) != 0x1BA )
1020             {
1021                 /* That's the case for all packets, except pack header. */
1022                 i_packet_size = U16_AT( pi_cur + 4 );
1023                 pp_packets[i_packet] = DVDNewPtr( p_netlist );
1024             }
1025             else
1026             {
1027                 /* Pack header. */
1028                 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
1029                 {
1030                     /* MPEG-2 */
1031                     i_packet_size = 8;
1032                 }
1033                 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1034                 {
1035                     /* MPEG-1 */
1036                     i_packet_size = 6;
1037                 }
1038                 else
1039                 {
1040                     intf_ErrMsg( "Unable to determine stream type" );
1041                     return( -1 );
1042                 }
1043
1044                 pp_packets[i_packet] = pp_data[i_iovec];
1045
1046             }
1047
1048             (*pp_data[i_iovec]->pi_refcount)++;
1049
1050             pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1051
1052             pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1053
1054             pp_packets[i_packet]->p_payload_start =
1055                     pp_packets[i_packet]->p_buffer + i_pos;
1056
1057             pp_packets[i_packet]->p_payload_end =
1058                     pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1059
1060             pp_packets[i_packet]->p_next = NULL;
1061             pp_packets[i_packet]->b_discard_payload = 0;
1062
1063             i_packet++;
1064             i_pos += i_packet_size + 6;
1065         }
1066     }
1067
1068     pp_packets[i_packet] = NULL;
1069
1070     vlc_mutex_lock( &p_input->stream.stream_lock );
1071
1072     p_input->stream.p_selected_area->i_tell += i_read_bytes;
1073     b_eof = p_input->stream.p_selected_area->i_tell < p_dvd->i_size ? 0 : 1;
1074
1075     vlc_mutex_unlock( &p_input->stream.stream_lock );
1076
1077     if( ( i_read_blocks == i_block_once ) && ( !b_eof ) )
1078     {
1079         return 0;
1080     }
1081     else
1082     {
1083         return 1;
1084     }
1085 #undef title
1086 }
1087
1088
1089 /*****************************************************************************
1090  * DVDRewind : reads a stream backward
1091  *****************************************************************************/
1092 static int DVDRewind( input_thread_t * p_input )
1093 {
1094     return( -1 );
1095 }
1096
1097 /*****************************************************************************
1098  * DVDSeek : Goes to a given position on the stream ; this one is used by the
1099  * input and translate chronological position from input to logical postion
1100  * on the device
1101  * ---
1102  * The lock should be taken before calling this function.
1103  *****************************************************************************/
1104 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1105 {
1106     thread_dvd_data_t *     p_dvd;
1107     off_t                   i_pos;
1108     int                     i_prg_cell;
1109     int                     i_cell;
1110     int                     i_chapter;
1111
1112     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1113 #define title \
1114     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1115
1116     /* we have to take care of offset of beginning of title */
1117     i_pos = i_off + p_input->stream.p_selected_area->i_start
1118                   - p_dvd->i_title_start;
1119
1120     /* update navigation data */
1121     p_dvd->i_sector = i_pos >> 11;
1122
1123     i_prg_cell = 0;
1124     i_chapter = 1;
1125
1126     /* parse vobu address map to find program cell */
1127     while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector  )
1128     {
1129         i_prg_cell++;
1130     }
1131
1132     p_dvd->i_prg_cell = i_prg_cell;
1133     p_dvd->i_cell = 0;
1134
1135     /* Find first title cell which is inside program cell */
1136     DVDFindCell( p_dvd );
1137
1138     i_cell = p_dvd->i_cell;
1139 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1140     /* parse cell address map to find title cell containing sector */
1141     while( cell.i_end_sector < p_dvd->i_sector )
1142     {
1143         i_cell++;
1144     }
1145
1146     p_dvd->i_cell = i_cell;
1147
1148     p_dvd->i_end_sector = MIN(
1149             cell.i_end_sector,
1150             title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1151
1152     /* update chapter */
1153     while( title.chapter_map.pi_start_cell[i_chapter-1] <= p_dvd->i_prg_cell )
1154     {
1155         i_chapter++;
1156     }
1157
1158     p_dvd->i_chapter = i_chapter;
1159     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1160
1161     p_input->stream.p_selected_area->i_tell =
1162                 lseek( p_dvd->i_fd, p_dvd->i_title_start +
1163                        (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET ) -
1164                 p_input->stream.p_selected_area->i_start;
1165
1166     intf_WarnMsg( 1, "Program Cell: %d Cell: %d Chapter: %d",
1167                      i_prg_cell, i_cell, p_dvd->i_chapter );
1168
1169     return;
1170 }