git.sesse.net Git - vlc/blob - plugins/dvdread/input_dvdread.c

   1 /*****************************************************************************
   2  * input_dvdread.c: DvdRead 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: libdvdread for ifo files and block reading.
   7  *****************************************************************************
   8  * Copyright (C) 2001 VideoLAN
   9  * $Id: input_dvdread.c,v 1.38.2.1 2002/09/25 23:11:53 massiot Exp $
  10  *
  11  * Author: Stéphane Borel <stef@via.ecp.fr>
  12  *
  13  * Some code taken form the play_title.c by Billy Biggs <vektor@dumbterm.net>
  14  * in libdvdread.
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  29  *****************************************************************************/
  30
  31 /*****************************************************************************
  32  * Preamble
  33  *****************************************************************************/
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36
  37 #include <videolan/vlc.h>
  38
  39 #ifdef HAVE_UNISTD_H
  40 #   include <unistd.h>
  41 #endif
  42
  43 #include <fcntl.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <string.h>
  47 #include <errno.h>
  48 #include <assert.h>
  49
  50 #ifdef STRNCASECMP_IN_STRINGS_H
  51 #   include <strings.h>
  52 #endif
  53
  54 #if defined( WIN32 )
  55 #   include <io.h>                                                 /* read() */
  56 #else
  57 #   include <sys/uio.h>                                      /* struct iovec */
  58 #endif
  59
  60 #if defined( WIN32 )
  61 #   include "input_iovec.h"
  62 #endif
  63
  64 #include <dvdread/dvd_reader.h>
  65 #include <dvdread/ifo_types.h>
  66 #include <dvdread/ifo_read.h>
  67 #include <dvdread/nav_read.h>
  68 #include <dvdread/nav_print.h>
  69
  70 #include "stream_control.h"
  71 #include "input_ext-intf.h"
  72 #include "input_ext-dec.h"
  73 #include "input_ext-plugins.h"
  74
  75 #include "input_dvdread.h"
  76
  77 #include "iso_lang.h"
  78
  79 /* how many blocks DVDRead will read in each loop */
  80 #define DVD_BLOCK_READ_ONCE 64
  81
  82 /*****************************************************************************
  83  * Local prototypes
  84  *****************************************************************************/
  85 /* called from outside */
  86 static int  DvdReadInit     ( struct input_thread_s * );
  87 static void DvdReadEnd      ( struct input_thread_s * );
  88 static int  DvdReadDemux    ( struct input_thread_s * );
  89 static int  DvdReadRewind   ( struct input_thread_s * );
  90
  91 static int  DvdReadOpen     ( struct input_thread_s * );
  92 static void DvdReadClose    ( struct input_thread_s * );
  93 static int  DvdReadSetArea  ( struct input_thread_s *, struct input_area_s * );
  94 static int  DvdReadSetProgram( struct input_thread_s *, pgrm_descriptor_t * );
  95 static int  DvdReadRead     ( struct input_thread_s *, byte_t *, size_t );
  96 static void DvdReadSeek     ( struct input_thread_s *, off_t );
  97
  98 /* called only from here */
  99 static void DvdReadLauchDecoders( input_thread_t * p_input );
 100 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data );
 101 static void DvdReadFindCell ( thread_dvd_data_t * p_dvd );
 102
 103 /*****************************************************************************
 104  * Functions exported as capabilities. They are declared as static so that
 105  * we don't pollute the namespace too much.
 106  *****************************************************************************/
 107 void _M( access_getfunctions )( function_list_t * p_function_list )
 108 {
 109 #define access p_function_list->functions.access
 110     access.pf_open             = DvdReadOpen;
 111     access.pf_close            = DvdReadClose;
 112     access.pf_read             = DvdReadRead;
 113     access.pf_set_area         = DvdReadSetArea;
 114     access.pf_set_program      = DvdReadSetProgram;
 115     access.pf_seek             = DvdReadSeek;
 116 #undef access
 117 }
 118
 119 void _M( demux_getfunctions )( function_list_t * p_function_list )
 120 {
 121 #define demux p_function_list->functions.demux
 122     demux.pf_init             = DvdReadInit;
 123     demux.pf_end              = DvdReadEnd;
 124     demux.pf_demux            = DvdReadDemux;
 125     demux.pf_rewind           = DvdReadRewind;
 126 #undef demux
 127 }
 128
 129 /*
 130  * Data demux functions
 131  */
 132
 133 /*****************************************************************************
 134  * DvdReadInit: initializes DVD structures
 135  *****************************************************************************/
 136 static int DvdReadInit( input_thread_t * p_input )
 137 {
 138     if( p_input->stream.i_method != INPUT_METHOD_DVD )
 139     {
 140         return -1;
 141     }
 142
 143     vlc_mutex_lock( &p_input->stream.stream_lock );
 144
 145     DvdReadLauchDecoders( p_input );
 146
 147     vlc_mutex_unlock( &p_input->stream.stream_lock );
 148
 149     return 0;
 150 }
 151
 152 /*****************************************************************************
 153  * DvdReadEnd: frees unused data
 154  *****************************************************************************/
 155 static void DvdReadEnd( input_thread_t * p_input )
 156 {
 157 }
 158
 159 /*****************************************************************************
 160  * DvdReadDemux
 161  *****************************************************************************/
 162 #define PEEK( SIZE )                                                        \
 163     i_result = input_Peek( p_input, &p_peek, SIZE );                        \
 164     if( i_result == -1 )                                                    \
 165     {                                                                       \
 166         return( -1 );                                                       \
 167     }                                                                       \
 168     else if( i_result < SIZE )                                              \
 169     {                                                                       \
 170         /* EOF */                                                           \
 171         return( 0 );                                                        \
 172     }
 173
 174 static int DvdReadDemux( input_thread_t * p_input )
 175 {
 176     int                 i;
 177     byte_t *            p_peek;
 178     data_packet_t *     p_data;
 179     ssize_t             i_result;
 180     int                 i_packet_size;
 181
 182
 183     /* Read headers to compute payload length */
 184     for( i = 0 ; i < DVD_BLOCK_READ_ONCE ; i++ )
 185     {
 186
 187         /* Read what we believe to be a packet header. */
 188         PEEK( 4 );
 189
 190         /* Default header */
 191         if( U32_AT( p_peek ) != 0x1BA )
 192         {
 193             /* That's the case for all packets, except pack header. */
 194             i_packet_size = U16_AT( p_peek + 4 );
 195         }
 196         else
 197         {
 198             /* MPEG-2 Pack header. */
 199             i_packet_size = 8;
 200         }
 201
 202         /* Fetch a packet of the appropriate size. */
 203         i_result = input_SplitBuffer( p_input, &p_data, i_packet_size + 6 );
 204         if( i_result <= 0 )
 205         {
 206             return( i_result );
 207         }
 208
 209         /* In MPEG-2 pack headers we still have to read stuffing bytes. */
 210         if( (p_data->p_demux_start[3] == 0xBA) && (i_packet_size == 8) )
 211         {
 212             size_t i_stuffing = (p_data->p_demux_start[13] & 0x7);
 213             /* Force refill of the input buffer - though we don't care
 214              * about p_peek. Please note that this is unoptimized. */
 215             PEEK( i_stuffing );
 216             p_input->p_current_data += i_stuffing;
 217         }
 218
 219         input_DemuxPS( p_input, p_data );
 220
 221     }
 222
 223     return i;
 224 }
 225
 226 /*****************************************************************************
 227  * DVDRewind : reads a stream backward
 228  *****************************************************************************/
 229 static int DvdReadRewind( input_thread_t * p_input )
 230 {
 231     return( -1 );
 232 }
 233
 234 /*
 235  * Data access functions
 236  */
 237
 238 /*****************************************************************************
 239  * DvdReadOpen: open libdvdread
 240  *****************************************************************************/
 241 static int DvdReadOpen( struct input_thread_s *p_input )
 242 {
 243     char *                  psz_orig;
 244     char *                  psz_parser;
 245     char *                  psz_source;
 246     char *                  psz_next;
 247     struct stat             stat_info;
 248     thread_dvd_data_t *     p_dvd;
 249     dvd_reader_t *          p_dvdread;
 250     input_area_t *          p_area;
 251     int                     i_title = 1;
 252     int                     i_chapter = 1;
 253     int                     i_angle = 1;
 254     int                     i;
 255
 256     psz_orig = psz_parser = psz_source = strdup( p_input->psz_name );
 257     if( !psz_orig )
 258     {
 259         return( -1 );
 260     }
 261
 262     while( *psz_parser && *psz_parser != '@' )
 263     {
 264         psz_parser++;
 265     }
 266
 267     if( *psz_parser == '@' )
 268     {
 269         /* Found options */
 270         *psz_parser = '\0';
 271         ++psz_parser;
 272
 273         i_title = (int)strtol( psz_parser, &psz_next, 10 );
 274         if( *psz_next )
 275         {
 276             psz_parser = psz_next + 1;
 277             i_chapter = (int)strtol( psz_parser, &psz_next, 10 );
 278             if( *psz_next )
 279             {
 280                 i_angle = (int)strtol( psz_next + 1, NULL, 10 );
 281             }
 282         }
 283
 284         i_title = i_title ? i_title : 1;
 285         i_chapter = i_chapter ? i_chapter : 1;
 286         i_angle = i_angle ? i_angle : 1;
 287     }
 288
 289     if( !*psz_source )
 290     {
 291         if( !p_input->psz_access )
 292         {
 293             free( psz_orig );
 294             return -1;
 295         }
 296         psz_source = config_GetPszVariable( "dvd" );
 297     }
 298
 299     if( stat( psz_source, &stat_info ) == -1 )
 300     {
 301         intf_ErrMsg( "input error: cannot stat() source `%s' (%s)",
 302                      psz_source, strerror(errno));
 303         return( -1 );
 304     }
 305     if( !S_ISBLK(stat_info.st_mode) &&
 306         !S_ISCHR(stat_info.st_mode) &&
 307         !S_ISDIR(stat_info.st_mode) )
 308     {
 309         intf_WarnMsg( 3, "input : DvdRead plugin discarded"
 310                          " (not a valid source)" );
 311         return -1;
 312     }
 313
 314     intf_WarnMsg( 2, "input: dvdroot=%s title=%d chapter=%d angle=%d",
 315                   psz_source, i_title, i_chapter, i_angle );
 316
 317
 318     p_dvdread = DVDOpen( psz_source );
 319
 320     /* free allocated strings */
 321     if( psz_source != psz_orig )
 322         free( psz_source );
 323     free( psz_orig );
 324
 325     if( ! p_dvdread )
 326     {
 327         intf_ErrMsg( "dvdread error: libdvdcss can't open source" );
 328         return -1;
 329     }
 330
 331     /* set up input  */
 332     p_input->i_mtu = 0;
 333
 334     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 335     if( p_dvd == NULL )
 336     {
 337         intf_ErrMsg( "dvdread error: out of memory" );
 338         return -1;
 339     }
 340
 341     p_dvd->p_dvdread = p_dvdread;
 342     p_dvd->p_title = NULL;
 343     p_dvd->p_vts_file = NULL;
 344
 345
 346     p_input->p_access_data = (void *)p_dvd;
 347
 348     /* Ifo allocation & initialisation */
 349     if( ! ( p_dvd->p_vmg_file = ifoOpen( p_dvd->p_dvdread, 0 ) ) )
 350     {
 351         intf_ErrMsg( "dvdread error: can't open VMG info" );
 352         free( p_dvd );
 353         return -1;
 354     }
 355     intf_WarnMsg( 2, "dvdread info: VMG opened" );
 356
 357     /* Set stream and area data */
 358     vlc_mutex_lock( &p_input->stream.stream_lock );
 359
 360     p_input->stream.i_method = INPUT_METHOD_DVD;
 361
 362     /* If we are here we can control the pace... */
 363     p_input->stream.b_pace_control = 1;
 364     p_input->stream.b_seekable = 1;
 365
 366     p_input->stream.p_selected_area->i_size = 0;
 367     p_input->stream.p_selected_area->i_tell = 0;
 368
 369     /* Initialize ES structures */
 370     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 371
 372     /* disc input method */
 373     p_input->stream.i_method = INPUT_METHOD_DVD;
 374
 375 #define tt_srpt p_dvd->p_vmg_file->tt_srpt
 376     intf_WarnMsg( 2, "dvdread info: number of titles: %d", tt_srpt->nr_of_srpts );
 377
 378 #define area p_input->stream.pp_areas
 379     /* We start from 1 here since the default area 0
 380      * is reserved for video_ts.vob */
 381     for( i = 1 ; i <= tt_srpt->nr_of_srpts ; i++ )
 382     {
 383         input_AddArea( p_input );
 384
 385         /* Titles are Program Chains */
 386         area[i]->i_id = i;
 387
 388         /* Absolute start offset and size
 389          * We can only set that with vts ifo, so we do it during the
 390          * first call to DVDSetArea */
 391         area[i]->i_start = 0;
 392         area[i]->i_size = 0;
 393
 394         /* Number of chapters */
 395         area[i]->i_part_nb = tt_srpt->title[i-1].nr_of_ptts;
 396         area[i]->i_part = 1;
 397
 398         area[i]->i_plugin_data = tt_srpt->title[i-1].title_set_nr;
 399     }
 400 #undef area
 401
 402     p_dvd->i_title = i_title <= tt_srpt->nr_of_srpts ? i_title : 1;
 403 #undef tt_srpt
 404
 405     p_area = p_input->stream.pp_areas[p_dvd->i_title];
 406     p_dvd->i_chapter = i_chapter;
 407
 408     p_dvd->i_chapter = i_chapter < p_area->i_part_nb ? i_chapter : 1;
 409     p_area->i_part = p_dvd->i_chapter;
 410
 411     p_dvd->i_angle = i_angle;
 412
 413     /* set title, chapter, audio and subpic */
 414     if( DvdReadSetArea( p_input, p_area ) )
 415     {
 416         vlc_mutex_unlock( &p_input->stream.stream_lock );
 417         return -1;
 418     }
 419
 420     vlc_mutex_unlock( &p_input->stream.stream_lock );
 421
 422     p_input->psz_demux = "dvdread";
 423
 424     return 0;
 425 }
 426
 427 /*****************************************************************************
 428  * DvdReadClose: close libdvdread
 429  *****************************************************************************/
 430 static void DvdReadClose( struct input_thread_s *p_input )
 431 {
 432     thread_dvd_data_t *     p_dvd;
 433
 434     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 435
 436     /* close libdvdread */
 437     DVDCloseFile( p_dvd->p_title );
 438     ifoClose( p_dvd->p_vts_file );
 439     ifoClose( p_dvd->p_vmg_file );
 440
 441     DVDClose( p_dvd->p_dvdread );
 442     free( p_dvd );
 443     p_input->p_access_data = NULL;
 444
 445 }
 446
 447 /*****************************************************************************
 448  * DvdReadSetProgram: Does nothing, a DVD is mono-program
 449  *****************************************************************************/
 450 static int DvdReadSetProgram( input_thread_t * p_input,
 451                               pgrm_descriptor_t * p_program )
 452 {
 453     if( p_input->stream.p_selected_program != p_program )
 454     {
 455         thread_dvd_data_t *  p_dvd;
 456
 457         p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
 458         p_dvd->i_angle = p_program->i_number;
 459
 460         memcpy( p_program, p_input->stream.p_selected_program,
 461                 sizeof(pgrm_descriptor_t) );
 462         p_program->i_number = p_dvd->i_angle;
 463         p_input->stream.p_selected_program = p_program;
 464
 465         intf_WarnMsg( 3, "dvd info: angle %d selected", p_dvd->i_angle );
 466     }
 467
 468     return 0;
 469 }
 470
 471 #define p_pgc         p_dvd->p_cur_pgc
 472
 473 /*****************************************************************************
 474  * DvdReadSetArea: initialize input data for title x, chapter y.
 475  * It should be called for each user navigation request.
 476  *****************************************************************************
 477  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 478  * Note that you have to take the lock before entering here.
 479  *****************************************************************************/
 480 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
 481 {
 482     thread_dvd_data_t *  p_dvd;
 483     int                  pgc_id = 0;
 484     int                  pgn = 0;
 485
 486     p_dvd = (thread_dvd_data_t*)p_input->p_access_data;
 487
 488     /* we can't use the interface slider until initilization is complete */
 489     p_input->stream.b_seekable = 0;
 490
 491     if( p_area != p_input->stream.p_selected_area )
 492     {
 493         es_descriptor_t *    p_es;
 494         int                  i_cell = 0;
 495         int                  i_audio_nb = 0;
 496         int                  i_spu_nb = 0;
 497         int                  i;
 498
 499 #define p_vmg         p_dvd->p_vmg_file
 500 #define p_vts         p_dvd->p_vts_file
 501         if( p_dvd->p_title != NULL )
 502         {
 503             DVDCloseFile( p_dvd->p_title );
 504         }
 505
 506         if( p_vts != NULL )
 507         {
 508             ifoClose( p_vts );
 509         }
 510
 511         /* Reset the Chapter position of the old title */
 512         p_input->stream.p_selected_area->i_part = 1;
 513
 514         /*
 515          *  We have to load all title information
 516          */
 517         /* Change the default area */
 518         p_input->stream.p_selected_area = p_area;
 519
 520         intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
 521             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 522             p_area->i_id );
 523
 524         /* ifo vts */
 525         if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
 526                 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
 527         {
 528             intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
 529             ifoClose( p_vmg );
 530             DVDClose( p_dvd->p_dvdread );
 531             return -1;
 532         }
 533
 534         /* title position inside the selected vts */
 535         p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
 536
 537         /*
 538          * Set selected title start
 539          */
 540         pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
 541         pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
 542         p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 543         i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 544
 545         p_area->i_start =
 546             LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
 547
 548         intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
 549                          p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
 550
 551         /*
 552          * Find title end
 553          */
 554         i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
 555
 556         p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
 557         p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
 558
 559         intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
 560                           p_area->i_start , p_area->i_size, p_dvd->i_end_block );
 561
 562         /*
 563          * Set properties for current chapter
 564          */
 565         /* Remeber current chapter */
 566         p_dvd->i_chapter = p_area->i_part;
 567         p_dvd->b_eoc = 0;
 568
 569         pgc_id = p_vts->vts_ptt_srpt->title[
 570                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 571         pgn = p_vts->vts_ptt_srpt->title[
 572                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 573
 574         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 575         p_dvd->i_pack_len = 0;
 576         p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
 577         DvdReadFindCell( p_dvd );
 578
 579         p_dvd->i_next_vobu = p_dvd->i_cur_block =
 580             p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 581
 582         /*
 583          * Angle management
 584          */
 585         p_dvd->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
 586
 587         if( p_dvd->i_angle > p_dvd->i_angle_nb )
 588         {
 589             p_dvd->i_angle = 1;
 590         }
 591
 592         /*
 593          * We've got enough info, time to open the title set data.
 594          */
 595         if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
 596             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 597             DVD_READ_TITLE_VOBS ) ) )
 598         {
 599             intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
 600                          p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
 601             ifoClose( p_vts );
 602             ifoClose( p_vmg );
 603             DVDClose( p_dvd->p_dvdread );
 604             return -1;
 605         }
 606
 607 //        IfoPrintTitle( p_dvd );
 608
 609         /*
 610          * Destroy obsolete ES by reinitializing program 0
 611          * and find all ES in title with ifo data
 612          */
 613         if( p_input->stream.pp_programs != NULL )
 614         {
 615             /* We don't use input_EndStream here since
 616              * we keep area structures */
 617
 618             while( p_input->stream.i_es_number )
 619             {
 620                 input_DelES( p_input, p_input->stream.pp_es[0] );
 621             }
 622
 623             while( p_input->stream.i_pgrm_number )
 624             {
 625                 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
 626             }
 627
 628             if( p_input->stream.pp_selected_es )
 629             {
 630                 free( p_input->stream.pp_selected_es );
 631                 p_input->stream.pp_selected_es = NULL;
 632             }
 633             p_input->stream.i_selected_es_number = 0;
 634         }
 635
 636         input_AddProgram( p_input, 1, sizeof( stream_ps_data_t ) );
 637         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 638
 639         for( i = 1 ; i < p_dvd->i_angle_nb ; i++ )
 640         {
 641             input_AddProgram( p_input, i+1, 0 );
 642         }
 643
 644         DvdReadSetProgram( p_input,
 645                            p_input->stream.pp_programs[p_dvd->i_angle-1] );
 646
 647         /* No PSM to read in DVD mode, we already have all information */
 648         p_input->stream.p_selected_program->b_is_ok = 1;
 649
 650         p_es = NULL;
 651
 652         /* ES 0 -> video MPEG2 */
 653 //        IfoPrintVideo( p_dvd );
 654
 655         p_es = input_AddES( p_input, NULL, 0xe0, 0 );
 656         p_es->i_stream_id = 0xe0;
 657         p_es->i_type = MPEG2_VIDEO_ES;
 658         p_es->i_cat = VIDEO_ES;
 659
 660 #define audio_control \
 661     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 662         /* Audio ES, in the order they appear in .ifo */
 663         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
 664         {
 665             int i_position = 0;
 666             u16 i_id;
 667
 668 //            IfoPrintAudio( p_dvd, i );
 669
 670             /* audio channel is active if first byte is 0x80 */
 671             if( audio_control & 0x8000 )
 672             {
 673                 i_audio_nb++;
 674                 i_position = ( audio_control & 0x7F00 ) >> 8;
 675
 676             intf_WarnMsg( 12, "dvd audio position  %d", i_position );
 677                 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
 678                 {
 679                 case 0x00:              /* AC3 */
 680                     i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
 681                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 682                     p_es->i_stream_id = 0xbd;
 683                     p_es->i_type = A52B_AUDIO_ES;
 684                     p_es->b_audio = 1;
 685                     p_es->i_cat = AUDIO_ES;
 686                     strcpy( p_es->psz_desc, DecodeLanguage(
 687                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) );
 688                     strcat( p_es->psz_desc, " (ac3)" );
 689
 690                     break;
 691                 case 0x02:
 692                 case 0x03:              /* MPEG audio */
 693                     i_id = 0xc0 + i_position;
 694                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 695                     p_es->i_stream_id = i_id;
 696                     p_es->i_type = MPEG2_AUDIO_ES;
 697                     p_es->b_audio = 1;
 698                     p_es->i_cat = AUDIO_ES;
 699                     strcpy( p_es->psz_desc, DecodeLanguage(
 700                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) );
 701                     strcat( p_es->psz_desc, " (mpeg)" );
 702
 703                     break;
 704                 case 0x04:              /* LPCM */
 705
 706                     i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
 707                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 708                     p_es->i_stream_id = i_id;
 709                     p_es->i_type = LPCMB_AUDIO_ES;
 710                     p_es->b_audio = 1;
 711                     p_es->i_cat = AUDIO_ES;
 712                     strcpy( p_es->psz_desc, DecodeLanguage(
 713                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) );
 714                     strcat( p_es->psz_desc, " (lpcm)" );
 715
 716                     break;
 717                 case 0x06:              /* DTS */
 718                     i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
 719                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 720                                  "(0x%x)", i_id );
 721                     break;
 722                 default:
 723                     i_id = 0;
 724                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 725                              p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
 726                 }
 727             }
 728         }
 729 #undef audio_control
 730 #define spu_control \
 731     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 732
 733         /* Sub Picture ES */
 734
 735         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 736         {
 737             int i_position = 0;
 738             u16 i_id;
 739
 740 //            IfoPrintSpu( p_dvd, i );
 741             intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
 742
 743             if( spu_control & 0x80000000 )
 744             {
 745                 i_spu_nb++;
 746
 747                 /*  there are several streams for one spu */
 748                 if(  p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 749                 {
 750                     /* 16:9 */
 751                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 752                     {
 753                     case 1:
 754                         i_position = spu_control & 0xff;
 755                         break;
 756                     case 2:
 757                         i_position = ( spu_control >> 8 ) & 0xff;
 758                         break;
 759                     default:
 760                         i_position = ( spu_control >> 16 ) & 0xff;
 761                         break;
 762                     }
 763                 }
 764                 else
 765                 {
 766                     /* 4:3 */
 767                     i_position = ( spu_control >> 24 ) & 0x7F;
 768                 }
 769
 770                 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
 771                 p_es = input_AddES( p_input, NULL, i_id, 0 );
 772                 p_es->i_stream_id = 0xbd;
 773                 p_es->i_type = DVDB_SPU_ES;
 774                 p_es->i_cat = SPU_ES;
 775                 strcpy( p_es->psz_desc, DecodeLanguage(
 776                     p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) );
 777             }
 778         }
 779 #undef spu_control
 780
 781         /* FIXME: hack to check that the demuxer is ready, and set
 782          * the decoders */
 783         if( p_input->p_demux_module )
 784         {
 785             DvdReadLauchDecoders( p_input );
 786         }
 787
 788     } /* i_title >= 0 */
 789     else
 790     {
 791         p_area = p_input->stream.p_selected_area;
 792     }
 793
 794     /*
 795      * Chapter selection
 796      */
 797
 798     if( p_area->i_part != p_dvd->i_chapter )
 799     {
 800         if( ( p_area->i_part > 0 ) &&
 801             ( p_area->i_part <= p_area->i_part_nb ))
 802         {
 803             p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
 804             pgc_id = p_vts->vts_ptt_srpt->title[
 805                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 806             pgn = p_vts->vts_ptt_srpt->title[
 807                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 808
 809             p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 810
 811             p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 812             p_dvd->i_chapter = p_area->i_part;
 813             DvdReadFindCell( p_dvd );
 814
 815             p_dvd->i_pack_len = 0;
 816             p_dvd->i_next_vobu = p_dvd->i_cur_block =
 817                     p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 818         }
 819         else
 820         {
 821             p_area->i_part = p_dvd->i_chapter;
 822         }
 823     }
 824 #undef p_vts
 825 #undef p_vmg
 826
 827     /* warn interface that something has changed */
 828     p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
 829     p_input->stream.b_seekable = 1;
 830     p_input->stream.b_changed = 1;
 831
 832     return 0;
 833 }
 834
 835
 836 /*****************************************************************************
 837  * DvdReadRead: reads data packets into the netlist.
 838  *****************************************************************************
 839  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 840  * EOF.
 841  *****************************************************************************/
 842 static int DvdReadRead( input_thread_t * p_input,
 843                         byte_t * p_buffer, size_t i_count )
 844 {
 845     thread_dvd_data_t *     p_dvd;
 846     byte_t *                p_buf;
 847     int                     i_blocks_once;
 848     int                     i_blocks;
 849     int                     i_read;
 850     int                     i_read_total;
 851     boolean_t               b_eot = 0;
 852
 853     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 854     p_buf = p_buffer;
 855
 856     /*
 857      * Playback by cell in this pgc, starting at the cell for our chapter.
 858      */
 859     i_blocks = OFF2LB( i_count );
 860     i_read_total = 0;
 861     i_read = 0;
 862
 863     while( i_blocks )
 864     {
 865         /*
 866          * End of pack, we select the following one
 867          */
 868         if( ! p_dvd->i_pack_len )
 869         {
 870             /*
 871              * Read NAV packet.
 872              */
 873             if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
 874                            1, p_buf ) ) != 1 )
 875             {
 876                 intf_ErrMsg( "dvdread error: read failed for block %d",
 877                              p_dvd->i_next_vobu );
 878                 return -1;
 879             }
 880
 881             /* basic check to be sure we don't have a empty title
 882              * go to next title if so */
 883             //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 884
 885             /*
 886              * Parse the contained dsi packet.
 887              */
 888
 889             DvdReadHandleDSI( p_dvd, p_buf );
 890
 891             /* End of File */
 892             if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
 893             {
 894                 return 1;
 895             }
 896
 897             assert( p_dvd->i_pack_len < 1024 );
 898             /* FIXME: Ugly kludge: we send the pack block to the input for it
 899              * sometimes has a zero scr and restart the sync */
 900             p_dvd->i_cur_block ++;
 901             //p_dvd->i_pack_len++;
 902
 903             i_read_total++;
 904             p_buf += DVD_VIDEO_LB_LEN;
 905             i_blocks--;
 906         }
 907
 908         /*
 909          * Compute the number of blocks to read
 910          */
 911         i_blocks_once = p_dvd->i_pack_len >= i_blocks
 912                  ? i_blocks : p_dvd->i_pack_len;
 913         p_dvd->i_pack_len -= i_blocks_once;
 914
 915         /* Reads from DVD */
 916         i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_cur_block,
 917                                 i_blocks_once, p_buf );
 918         if( i_read != i_blocks_once )
 919         {
 920             intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
 921                          i_read, i_blocks_once, p_dvd->i_cur_block );
 922             return -1;
 923         }
 924
 925         i_blocks -= i_read;
 926         i_read_total += i_read;
 927         p_dvd->i_cur_block += i_read;
 928         p_buf += LB2OFF( i_read );
 929
 930     }
 931 /*
 932     intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
 933 */
 934
 935     vlc_mutex_lock( &p_input->stream.stream_lock );
 936
 937     p_input->stream.p_selected_area->i_tell =
 938         LB2OFF( p_dvd->i_cur_block ) -
 939             p_input->stream.p_selected_area->i_start;
 940
 941     if( p_dvd->b_eoc )
 942     {
 943         /* We modify i_part only at end of chapter not to erase
 944          * some modification from the interface */
 945         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 946         p_dvd->b_eoc = 0;
 947     }
 948
 949     if( p_input->stream.p_selected_area->i_tell
 950             >= p_input->stream.p_selected_area->i_size || b_eot )
 951     {
 952         if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
 953                         p_input->stream.i_area_nb )
 954         {
 955             /* EOF */
 956             vlc_mutex_unlock( &p_input->stream.stream_lock );
 957             return 1;
 958         }
 959
 960         /* EOT */
 961         intf_WarnMsg( 4, "dvd info: new title" );
 962         DvdReadSetArea( p_input, p_input->stream.pp_areas[
 963                         p_input->stream.p_selected_area->i_id+1] );
 964         vlc_mutex_unlock( &p_input->stream.stream_lock );
 965         return 0;
 966     }
 967
 968     vlc_mutex_unlock( &p_input->stream.stream_lock );
 969
 970     return LB2OFF( i_read_total );
 971 }
 972 #undef p_pgc
 973
 974 /*****************************************************************************
 975  * DvdReadSeek : Goes to a given position on the stream.
 976  *****************************************************************************
 977  * This one is used by the input and translate chronological position from
 978  * input to logical position on the device.
 979  * The lock should be taken before calling this function.
 980  *****************************************************************************/
 981 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
 982 {
 983     thread_dvd_data_t *     p_dvd;
 984     int                     i_lb;
 985     int                     i_tmp;
 986     int                     i_chapter = 0;
 987     int                     i_cell = 0;
 988     int                     i_vobu = 0;
 989     int                     i_sub_cell = 0;
 990
 991     vlc_mutex_lock( &p_input->stream.stream_lock );
 992     i_off += p_input->stream.p_selected_area->i_start;
 993     vlc_mutex_unlock( &p_input->stream.stream_lock );
 994
 995     i_lb = OFF2LB( i_off );
 996     p_dvd = ( thread_dvd_data_t * )p_input->p_access_data;
 997
 998     /* find cell */
 999     while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
1000     {
1001         i_cell++;
1002     }
1003
1004     /* find chapter */
1005     do
1006     {
1007         pgc_t *     p_pgc;
1008         int         pgc_id, pgn;
1009
1010         i_chapter++;
1011         pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1012                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgcn;
1013         pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1014                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgn;
1015
1016         p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1017         i_tmp = p_pgc->program_map[pgn-1];
1018
1019     } while( i_tmp <= i_cell );
1020
1021     /* find vobu */
1022     while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
1023             <= i_lb )
1024     {
1025         i_vobu++;
1026     }
1027
1028     /* find sub_cell */
1029     while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1030             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1031     {
1032         i_sub_cell++;
1033     }
1034
1035 /*
1036     intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
1037             i_cell, i_sub_cell,i_chapter, i_vobu,
1038             p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
1039             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
1040             p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
1041 */
1042     p_dvd->i_cur_block = i_lb;
1043     p_dvd->i_next_vobu =
1044         p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
1045     p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
1046     p_dvd->i_cur_cell = i_cell;
1047     p_dvd->i_chapter = i_chapter;
1048     DvdReadFindCell( p_dvd );
1049
1050     vlc_mutex_lock( &p_input->stream.stream_lock );
1051     p_input->stream.p_selected_area->i_tell =
1052         LB2OFF ( p_dvd->i_cur_block )
1053          - p_input->stream.p_selected_area->i_start;
1054     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1055     vlc_mutex_unlock( &p_input->stream.stream_lock );
1056
1057     return;
1058 }
1059
1060 /*****************************************************************************
1061  * DvdReadHandleDSI
1062  *****************************************************************************/
1063 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
1064 {
1065     navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1066
1067     /*
1068      * Determine where we go next.  These values are the ones we mostly
1069      * care about.
1070      */
1071     p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1072
1073     /*
1074      * If we're not at the end of this cell, we can determine the next
1075      * VOBU to display using the VOBU_SRI information section of the
1076      * DSI.  Using this value correctly follows the current angle,
1077      * avoiding the doubled scenes in The Matrix, and makes our life
1078      * really happy.
1079      */
1080     if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1081     {
1082 #if 1
1083         switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1084         {
1085             case 0x4:
1086                 /* interleaved unit with no angle */
1087                 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1088                 {
1089                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1090                         p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1091                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1092                 }
1093                 else
1094                 {
1095                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1096                         p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1097                     p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1098                 }
1099                 break;
1100             case 0x5:
1101                 /* vobu is end of ilvu */
1102                 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1103                 {
1104                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1105                         p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1106                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1107
1108                     break;
1109                 }
1110             case 0x6:
1111                 /* vobu is beginning of ilvu */
1112             case 0x9:
1113                 /* next scr is 0 */
1114             case 0xa:
1115                 /* entering interleaved section */
1116             case 0x8:
1117                 /* non interleaved cells in interleaved section */
1118             default:
1119                 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1120                     ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1121                 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1122                 break;
1123         }
1124 #else
1125         p_dvd->i_next_vobu = p_dvd->i_cur_block +
1126             ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1127         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1128 #endif
1129     }
1130     else
1131     {
1132         p_dvd->i_cur_cell = p_dvd->i_next_cell;
1133         DvdReadFindCell( p_dvd );
1134
1135         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1136         p_dvd->i_next_vobu =
1137             p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1138     }
1139
1140 #if 0
1141     intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1142             p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1143             p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1144             p_dvd->dsi_pack.dsi_gi.vobu_ea,
1145             p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1146             p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1147
1148     intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1149             p_dvd->dsi_pack.sml_pbi.category,
1150             p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1151             p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1152             p_dvd->dsi_pack.sml_pbi.size );
1153
1154     intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1155             p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1156             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1157             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1158 #endif
1159 }
1160
1161 /*****************************************************************************
1162  * DvdReadFindCell
1163  *****************************************************************************/
1164 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1165 {
1166     int         pgc_id, pgn;
1167     int         i = 0;
1168     pgc_t *     p_pgc;
1169 #define cell p_dvd->p_cur_pgc->cell_playback
1170     if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1171     {
1172 #if 0
1173         p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1174         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1175 #else
1176         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1177
1178         while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1179         {
1180             i++;
1181         }
1182         p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1183 #endif
1184     }
1185     else
1186     {
1187         p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1188     }
1189 #undef cell
1190     pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1191                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgcn;
1192     pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1193                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgn;
1194     p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1195
1196     if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1197     {
1198         p_dvd->i_chapter++;
1199         p_dvd->b_eoc = 1;
1200     }
1201 }
1202
1203 /*****************************************************************************
1204  * DvdReadLaunchDecoders
1205  *****************************************************************************/
1206 static void DvdReadLauchDecoders( input_thread_t * p_input )
1207 {
1208     thread_dvd_data_t *  p_dvd;
1209
1210     p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
1211
1212     if( p_main->b_video )
1213     {
1214         input_SelectES( p_input, p_input->stream.pp_es[0] );
1215     }
1216
1217     if( p_main->b_audio )
1218     {
1219         /* For audio: first one if none or a not existing one specified */
1220         int i_audio = config_GetIntVariable( "audio-channel" );
1221         if( i_audio < 0 /*|| i_audio > i_audio_nb*/ )
1222         {
1223             config_PutIntVariable( "audio-channel", 1 );
1224             i_audio = 1;
1225         }
1226         if( i_audio > 0/* && i_audio_nb > 0*/ )
1227         {
1228             if( config_GetIntVariable( "audio-type" ) == REQUESTED_AC3 )
1229             {
1230                 int     i_ac3 = i_audio;
1231                 while( ( p_input->stream.pp_es[i_ac3]->i_type !=
1232                        A52B_AUDIO_ES ) && ( i_ac3 <=
1233                        p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams ) )
1234                 {
1235                     i_ac3++;
1236                 }
1237                 if( p_input->stream.pp_es[i_ac3]->i_type == A52B_AUDIO_ES )
1238                 {
1239                     input_SelectES( p_input,
1240                                     p_input->stream.pp_es[i_ac3] );
1241                 }
1242             }
1243             else
1244             {
1245                 input_SelectES( p_input,
1246                                 p_input->stream.pp_es[i_audio] );
1247             }
1248         }
1249     }
1250
1251     if( p_main->b_video )
1252     {
1253         /* for spu, default is none */
1254         int i_spu = config_GetIntVariable( "spu-channel" );
1255         if( i_spu < 0 /*|| i_spu > i_spu_nb*/ )
1256         {
1257             config_PutIntVariable( "spu-channel", 0 );
1258             i_spu = 0;
1259         }
1260         if( i_spu > 0 /*&& i_spu_nb > 0*/ )
1261         {
1262             i_spu += p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams;
1263             input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
1264         }
1265     }
1266 }