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 1.34 2002/03/18 19:14:52 sam 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 "stream_control.h"
  65 #include "input_ext-intf.h"
  66 #include "input_ext-dec.h"
  67 #include "input_ext-plugins.h"
  68
  69 #include "input_dvdread.h"
  70
  71 #include "iso_lang.h"
  72
  73 #include "debug.h"
  74
  75 /* how many blocks DVDRead will read in each loop */
  76 #define DVD_BLOCK_READ_ONCE 64
  77
  78 /*****************************************************************************
  79  * Local prototypes
  80  *****************************************************************************/
  81 /* called from outside */
  82 static int  DvdReadInit     ( struct input_thread_s * );
  83 static void DvdReadEnd      ( struct input_thread_s * );
  84 static int  DvdReadDemux    ( struct input_thread_s * );
  85 static int  DvdReadRewind   ( struct input_thread_s * );
  86
  87 static int  DvdReadOpen     ( struct input_thread_s * );
  88 static void DvdReadClose    ( struct input_thread_s * );
  89 static int  DvdReadSetArea  ( struct input_thread_s *, struct input_area_s * );
  90 static int  DvdReadSetProgram( struct input_thread_s *, pgrm_descriptor_t * );
  91 static int  DvdReadRead     ( struct input_thread_s *, byte_t *, size_t );
  92 static void DvdReadSeek     ( struct input_thread_s *, off_t );
  93
  94 /* called only from here */
  95 static void DvdReadLauchDecoders( input_thread_t * p_input );
  96 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data );
  97 static void DvdReadFindCell ( thread_dvd_data_t * p_dvd );
  98
  99 /*****************************************************************************
 100  * Functions exported as capabilities. They are declared as static so that
 101  * we don't pollute the namespace too much.
 102  *****************************************************************************/
 103 void _M( access_getfunctions )( function_list_t * p_function_list )
 104 {
 105 #define access p_function_list->functions.access
 106     access.pf_open             = DvdReadOpen;
 107     access.pf_close            = DvdReadClose;
 108     access.pf_read             = DvdReadRead;
 109     access.pf_set_area         = DvdReadSetArea;
 110     access.pf_set_program      = DvdReadSetProgram;
 111     access.pf_seek             = DvdReadSeek;
 112 #undef access
 113 }
 114
 115 void _M( demux_getfunctions )( function_list_t * p_function_list )
 116 {
 117 #define demux p_function_list->functions.demux
 118     demux.pf_init             = DvdReadInit;
 119     demux.pf_end              = DvdReadEnd;
 120     demux.pf_demux            = DvdReadDemux;
 121     demux.pf_rewind           = DvdReadRewind;
 122 #undef demux
 123 }
 124
 125 /*
 126  * Data demux functions
 127  */
 128
 129 /*****************************************************************************
 130  * DvdReadInit: initializes DVD structures
 131  *****************************************************************************/
 132 static int DvdReadInit( input_thread_t * p_input )
 133 {
 134     if( p_input->stream.i_method != INPUT_METHOD_DVD )
 135     {
 136         return -1;
 137     }
 138
 139     vlc_mutex_lock( &p_input->stream.stream_lock );
 140
 141     DvdReadLauchDecoders( p_input );
 142
 143     vlc_mutex_unlock( &p_input->stream.stream_lock );
 144
 145     return 0;
 146 }
 147
 148 /*****************************************************************************
 149  * DvdReadEnd: frees unused data
 150  *****************************************************************************/
 151 static void DvdReadEnd( input_thread_t * p_input )
 152 {
 153 }
 154
 155 /*****************************************************************************
 156  * DvdReadDemux
 157  *****************************************************************************/
 158 #define PEEK( SIZE )                                                        \
 159     i_result = input_Peek( p_input, &p_peek, SIZE );                        \
 160     if( i_result == -1 )                                                    \
 161     {                                                                       \
 162         return( -1 );                                                       \
 163     }                                                                       \
 164     else if( i_result < SIZE )                                              \
 165     {                                                                       \
 166         /* EOF */                                                           \
 167         return( 0 );                                                        \
 168     }
 169
 170 static int DvdReadDemux( input_thread_t * p_input )
 171 {
 172     int                 i;
 173     byte_t *            p_peek;
 174     data_packet_t *     p_data;
 175     ssize_t             i_result;
 176     int                 i_packet_size;
 177
 178
 179     /* Read headers to compute payload length */
 180     for( i = 0 ; i < DVD_BLOCK_READ_ONCE ; i++ )
 181     {
 182
 183         /* Read what we believe to be a packet header. */
 184         PEEK( 4 );
 185
 186         /* Default header */
 187         if( U32_AT( p_peek ) != 0x1BA )
 188         {
 189             /* That's the case for all packets, except pack header. */
 190             i_packet_size = U16_AT( p_peek + 4 );
 191         }
 192         else
 193         {
 194             /* MPEG-2 Pack header. */
 195             i_packet_size = 8;
 196         }
 197
 198         /* Fetch a packet of the appropriate size. */
 199         i_result = input_SplitBuffer( p_input, &p_data, i_packet_size + 6 );
 200         if( i_result <= 0 )
 201         {
 202             return( i_result );
 203         }
 204
 205         /* In MPEG-2 pack headers we still have to read stuffing bytes. */
 206         if( (p_data->p_demux_start[3] == 0xBA) && (i_packet_size == 8) )
 207         {
 208             size_t i_stuffing = (p_data->p_demux_start[13] & 0x7);
 209             /* Force refill of the input buffer - though we don't care
 210              * about p_peek. Please note that this is unoptimized. */
 211             PEEK( i_stuffing );
 212             p_input->p_current_data += i_stuffing;
 213         }
 214
 215         input_DemuxPS( p_input, p_data );
 216
 217     }
 218
 219     return i;
 220 }
 221
 222 /*****************************************************************************
 223  * DVDRewind : reads a stream backward
 224  *****************************************************************************/
 225 static int DvdReadRewind( input_thread_t * p_input )
 226 {
 227     return( -1 );
 228 }
 229
 230 /*
 231  * Data access functions
 232  */
 233
 234 /*****************************************************************************
 235  * DvdReadOpen: open libdvdread
 236  *****************************************************************************/
 237 static int DvdReadOpen( struct input_thread_s *p_input )
 238 {
 239     char *                  psz_orig;
 240     char *                  psz_parser;
 241     char *                  psz_source;
 242     char *                  psz_next;
 243     struct stat             stat_info;
 244     thread_dvd_data_t *     p_dvd;
 245     dvd_reader_t *          p_dvdread;
 246     input_area_t *          p_area;
 247     int                     i_title = 1;
 248     int                     i_chapter = 1;
 249     int                     i_angle = 1;
 250     int                     i;
 251
 252     psz_orig = psz_parser = psz_source = strdup( p_input->psz_name );
 253     if( !psz_orig )
 254     {
 255         return( -1 );
 256     }
 257
 258     while( *psz_parser && *psz_parser != '@' )
 259     {
 260         psz_parser++;
 261     }
 262
 263     if( *psz_parser == '@' )
 264     {
 265         /* Found options */
 266         *psz_parser = '\0';
 267         ++psz_parser;
 268
 269         i_title = (int)strtol( psz_parser, &psz_next, 10 );
 270         if( *psz_next )
 271         {
 272             psz_parser = psz_next + 1;
 273             i_chapter = (int)strtol( psz_parser, &psz_next, 10 );
 274             if( *psz_next )
 275             {
 276                 i_angle = (int)strtol( psz_next + 1, NULL, 10 );
 277             }
 278         }
 279
 280         i_title = i_title ? i_title : 1;
 281         i_chapter = i_chapter ? i_chapter : 1;
 282         i_angle = i_angle ? i_angle : 1;
 283     }
 284
 285     if( !*psz_source )
 286     {
 287         if( !p_input->psz_access )
 288         {
 289             free( psz_orig );
 290             return -1;
 291         }
 292         psz_source = config_GetPszVariable( "dvd_device" );
 293     }
 294
 295     if( stat( psz_source, &stat_info ) == -1 )
 296     {
 297         intf_ErrMsg( "input error: cannot stat() source `%s' (%s)",
 298                      psz_source, strerror(errno));
 299         return( -1 );
 300     }
 301     if( !S_ISBLK(stat_info.st_mode) &&
 302         !S_ISCHR(stat_info.st_mode) &&
 303         !S_ISDIR(stat_info.st_mode) )
 304     {
 305         intf_WarnMsg( 3, "input : DvdRead plugin discarded"
 306                          " (not a valid source)" );
 307         return -1;
 308     }
 309
 310     intf_WarnMsg( 2, "input: dvdroot=%s title=%d chapter=%d angle=%d",
 311                   psz_source, i_title, i_chapter, i_angle );
 312
 313
 314     p_dvdread = DVDOpen( psz_source );
 315
 316     /* free allocated strings */
 317     if( psz_source != psz_orig )
 318         free( psz_source );
 319     free( psz_orig );
 320
 321     if( ! p_dvdread )
 322     {
 323         intf_ErrMsg( "dvdread error: libdvdcss can't open source" );
 324         return -1;
 325     }
 326
 327     /* set up input  */
 328     p_input->i_mtu = 0;
 329
 330     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 331     if( p_dvd == NULL )
 332     {
 333         intf_ErrMsg( "dvdread error: out of memory" );
 334         return -1;
 335     }
 336
 337     p_dvd->p_dvdread = p_dvdread;
 338     p_dvd->p_title = NULL;
 339     p_dvd->p_vts_file = NULL;
 340
 341
 342     p_input->p_access_data = (void *)p_dvd;
 343
 344     /* Ifo allocation & initialisation */
 345     if( ! ( p_dvd->p_vmg_file = ifoOpen( p_dvd->p_dvdread, 0 ) ) )
 346     {
 347         intf_ErrMsg( "dvdread error: can't open VMG info" );
 348         free( p_dvd );
 349         return -1;
 350     }
 351     intf_WarnMsg( 2, "dvdread info: VMG opened" );
 352
 353     /* Set stream and area data */
 354     vlc_mutex_lock( &p_input->stream.stream_lock );
 355
 356     p_input->stream.i_method = INPUT_METHOD_DVD;
 357
 358     /* If we are here we can control the pace... */
 359     p_input->stream.b_pace_control = 1;
 360     p_input->stream.b_seekable = 1;
 361
 362     p_input->stream.p_selected_area->i_size = 0;
 363     p_input->stream.p_selected_area->i_tell = 0;
 364
 365     /* Initialize ES structures */
 366     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 367
 368     /* disc input method */
 369     p_input->stream.i_method = INPUT_METHOD_DVD;
 370
 371 #define tt_srpt p_dvd->p_vmg_file->tt_srpt
 372     intf_WarnMsg( 2, "dvdread info: number of titles: %d", tt_srpt->nr_of_srpts );
 373
 374 #define area p_input->stream.pp_areas
 375     /* We start from 1 here since the default area 0
 376      * is reserved for video_ts.vob */
 377     for( i = 1 ; i <= tt_srpt->nr_of_srpts ; i++ )
 378     {
 379         input_AddArea( p_input );
 380
 381         /* Titles are Program Chains */
 382         area[i]->i_id = i;
 383
 384         /* Absolute start offset and size
 385          * We can only set that with vts ifo, so we do it during the
 386          * first call to DVDSetArea */
 387         area[i]->i_start = 0;
 388         area[i]->i_size = 0;
 389
 390         /* Number of chapters */
 391         area[i]->i_part_nb = tt_srpt->title[i-1].nr_of_ptts;
 392         area[i]->i_part = 1;
 393
 394         area[i]->i_plugin_data = tt_srpt->title[i-1].title_set_nr;
 395     }
 396 #undef area
 397
 398     p_dvd->i_title = i_title <= tt_srpt->nr_of_srpts ? i_title : 1;
 399 #undef tt_srpt
 400
 401     p_area = p_input->stream.pp_areas[p_dvd->i_title];
 402     p_dvd->i_chapter = i_chapter;
 403
 404     p_dvd->i_chapter = i_chapter < p_area->i_part_nb ? i_chapter : 1;
 405     p_area->i_part = p_dvd->i_chapter;
 406
 407     p_dvd->i_angle = i_angle;
 408
 409     /* set title, chapter, audio and subpic */
 410     if( DvdReadSetArea( p_input, p_area ) )
 411     {
 412         vlc_mutex_unlock( &p_input->stream.stream_lock );
 413         return -1;
 414     }
 415
 416     vlc_mutex_unlock( &p_input->stream.stream_lock );
 417
 418     p_input->psz_demux = "dvdread";
 419
 420     return 0;
 421 }
 422
 423 /*****************************************************************************
 424  * DvdReadClose: close libdvdread
 425  *****************************************************************************/
 426 static void DvdReadClose( struct input_thread_s *p_input )
 427 {
 428     thread_dvd_data_t *     p_dvd;
 429
 430     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 431
 432     /* close libdvdread */
 433     DVDCloseFile( p_dvd->p_title );
 434     ifoClose( p_dvd->p_vts_file );
 435     ifoClose( p_dvd->p_vmg_file );
 436
 437     DVDClose( p_dvd->p_dvdread );
 438     free( p_dvd );
 439     p_input->p_access_data = NULL;
 440
 441 }
 442
 443 /*****************************************************************************
 444  * DvdReadSetProgram: Does nothing, a DVD is mono-program
 445  *****************************************************************************/
 446 static int DvdReadSetProgram( input_thread_t * p_input,
 447                               pgrm_descriptor_t * p_program )
 448 {
 449     if( p_input->stream.p_selected_program != p_program )
 450     {
 451         thread_dvd_data_t *  p_dvd;
 452
 453         p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
 454         p_dvd->i_angle = p_program->i_number;
 455
 456         memcpy( p_program, p_input->stream.p_selected_program,
 457                 sizeof(pgrm_descriptor_t) );
 458         p_program->i_number = p_dvd->i_angle;
 459         p_input->stream.p_selected_program = p_program;
 460
 461         intf_WarnMsg( 3, "dvd info: angle %d selected", p_dvd->i_angle );
 462     }
 463
 464     return 0;
 465 }
 466
 467 #define p_pgc         p_dvd->p_cur_pgc
 468
 469 /*****************************************************************************
 470  * DvdReadSetArea: initialize input data for title x, chapter y.
 471  * It should be called for each user navigation request.
 472  *****************************************************************************
 473  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 474  * Note that you have to take the lock before entering here.
 475  *****************************************************************************/
 476 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
 477 {
 478     thread_dvd_data_t *  p_dvd;
 479     int                  pgc_id = 0;
 480     int                  pgn = 0;
 481
 482     p_dvd = (thread_dvd_data_t*)p_input->p_access_data;
 483
 484     /* we can't use the interface slider until initilization is complete */
 485     p_input->stream.b_seekable = 0;
 486
 487     if( p_area != p_input->stream.p_selected_area )
 488     {
 489         es_descriptor_t *    p_es;
 490         int                  i_cell = 0;
 491         int                  i_audio_nb = 0;
 492         int                  i_spu_nb = 0;
 493         int                  i;
 494
 495 #define p_vmg         p_dvd->p_vmg_file
 496 #define p_vts         p_dvd->p_vts_file
 497         if( p_dvd->p_title != NULL )
 498         {
 499             DVDCloseFile( p_dvd->p_title );
 500         }
 501
 502         if( p_vts != NULL )
 503         {
 504             ifoClose( p_vts );
 505         }
 506
 507         /* Reset the Chapter position of the old title */
 508         p_input->stream.p_selected_area->i_part = 1;
 509
 510         /*
 511          *  We have to load all title information
 512          */
 513         /* Change the default area */
 514         p_input->stream.p_selected_area = p_area;
 515
 516         intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
 517             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 518             p_area->i_id );
 519
 520         /* ifo vts */
 521         if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
 522                 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
 523         {
 524             intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
 525             ifoClose( p_vmg );
 526             DVDClose( p_dvd->p_dvdread );
 527             return -1;
 528         }
 529
 530         /* title position inside the selected vts */
 531         p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
 532
 533         /*
 534          * Set selected title start
 535          */
 536         pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
 537         pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
 538         p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 539         i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 540
 541         p_area->i_start =
 542             LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
 543
 544         intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
 545                          p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
 546
 547         /*
 548          * Find title end
 549          */
 550         i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
 551
 552         p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
 553         p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
 554
 555         intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
 556                           p_area->i_start , p_area->i_size, p_dvd->i_end_block );
 557
 558         /*
 559          * Set properties for current chapter
 560          */
 561         /* Remeber current chapter */
 562         p_dvd->i_chapter = p_area->i_part;
 563         p_dvd->b_eoc = 0;
 564
 565         pgc_id = p_vts->vts_ptt_srpt->title[
 566                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 567         pgn = p_vts->vts_ptt_srpt->title[
 568                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 569
 570         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 571         p_dvd->i_pack_len = 0;
 572         p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
 573         DvdReadFindCell( p_dvd );
 574
 575         p_dvd->i_next_vobu = p_dvd->i_cur_block =
 576             p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 577
 578         /*
 579          * Angle management
 580          */
 581         p_dvd->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
 582
 583         if( p_dvd->i_angle > p_dvd->i_angle_nb )
 584         {
 585             p_dvd->i_angle = 1;
 586         }
 587
 588         /*
 589          * We've got enough info, time to open the title set data.
 590          */
 591         if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
 592             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 593             DVD_READ_TITLE_VOBS ) ) )
 594         {
 595             intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
 596                          p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
 597             ifoClose( p_vts );
 598             ifoClose( p_vmg );
 599             DVDClose( p_dvd->p_dvdread );
 600             return -1;
 601         }
 602
 603 //        IfoPrintTitle( p_dvd );
 604
 605         /*
 606          * Destroy obsolete ES by reinitializing program 0
 607          * and find all ES in title with ifo data
 608          */
 609         if( p_input->stream.pp_programs != NULL )
 610         {
 611             /* We don't use input_EndStream here since
 612              * we keep area structures */
 613
 614             while( p_input->stream.i_es_number )
 615             {
 616                 input_DelES( p_input, p_input->stream.pp_es[0] );
 617             }
 618
 619             while( p_input->stream.i_pgrm_number )
 620             {
 621                 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
 622             }
 623
 624             if( p_input->stream.pp_selected_es )
 625             {
 626                 free( p_input->stream.pp_selected_es );
 627                 p_input->stream.pp_selected_es = NULL;
 628             }
 629             p_input->stream.i_selected_es_number = 0;
 630         }
 631
 632         input_AddProgram( p_input, 1, sizeof( stream_ps_data_t ) );
 633         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 634
 635         for( i = 1 ; i < p_dvd->i_angle_nb ; i++ )
 636         {
 637             input_AddProgram( p_input, i+1, 0 );
 638         }
 639
 640         DvdReadSetProgram( p_input,
 641                            p_input->stream.pp_programs[p_dvd->i_angle-1] );
 642
 643         /* No PSM to read in DVD mode, we already have all information */
 644         p_input->stream.p_selected_program->b_is_ok = 1;
 645
 646         p_es = NULL;
 647
 648         /* ES 0 -> video MPEG2 */
 649 //        IfoPrintVideo( p_dvd );
 650
 651         p_es = input_AddES( p_input, NULL, 0xe0, 0 );
 652         p_es->i_stream_id = 0xe0;
 653         p_es->i_type = MPEG2_VIDEO_ES;
 654         p_es->i_cat = VIDEO_ES;
 655
 656 #define audio_control \
 657     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 658         /* Audio ES, in the order they appear in .ifo */
 659         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
 660         {
 661             int i_position = 0;
 662             u16 i_id;
 663
 664 //            IfoPrintAudio( p_dvd, i );
 665
 666             /* audio channel is active if first byte is 0x80 */
 667             if( audio_control & 0x8000 )
 668             {
 669                 i_audio_nb++;
 670                 i_position = ( audio_control & 0x7F00 ) >> 8;
 671
 672             intf_WarnMsg( 12, "dvd audio position  %d", i_position );
 673                 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
 674                 {
 675                 case 0x00:              /* AC3 */
 676                     i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
 677                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 678                     p_es->i_stream_id = 0xbd;
 679                     p_es->i_type = AC3_AUDIO_ES;
 680                     p_es->b_audio = 1;
 681                     p_es->i_cat = AUDIO_ES;
 682                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 683                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 684                     strcat( p_es->psz_desc, " (ac3)" );
 685
 686                     break;
 687                 case 0x02:
 688                 case 0x03:              /* MPEG audio */
 689                     i_id = 0xc0 + i_position;
 690                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 691                     p_es->i_stream_id = i_id;
 692                     p_es->i_type = MPEG2_AUDIO_ES;
 693                     p_es->b_audio = 1;
 694                     p_es->i_cat = AUDIO_ES;
 695                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 696                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 697                     strcat( p_es->psz_desc, " (mpeg)" );
 698
 699                     break;
 700                 case 0x04:              /* LPCM */
 701
 702                     i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
 703                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 704                     p_es->i_stream_id = i_id;
 705                     p_es->i_type = LPCM_AUDIO_ES;
 706                     p_es->b_audio = 1;
 707                     p_es->i_cat = AUDIO_ES;
 708                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 709                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 710                     strcat( p_es->psz_desc, " (lpcm)" );
 711
 712                     break;
 713                 case 0x06:              /* DTS */
 714                     i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
 715                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 716                                  "(0x%x)", i_id );
 717                     break;
 718                 default:
 719                     i_id = 0;
 720                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 721                              p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
 722                 }
 723             }
 724         }
 725 #undef audio_control
 726 #define spu_control \
 727     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 728
 729         /* Sub Picture ES */
 730
 731         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 732         {
 733             int i_position = 0;
 734             u16 i_id;
 735
 736 //            IfoPrintSpu( p_dvd, i );
 737             intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
 738
 739             if( spu_control & 0x80000000 )
 740             {
 741                 i_spu_nb++;
 742
 743                 /*  there are several streams for one spu */
 744                 if(  p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 745                 {
 746                     /* 16:9 */
 747                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 748                     {
 749                     case 1:
 750                         i_position = spu_control & 0xff;
 751                         break;
 752                     case 2:
 753                         i_position = ( spu_control >> 8 ) & 0xff;
 754                         break;
 755                     default:
 756                         i_position = ( spu_control >> 16 ) & 0xff;
 757                         break;
 758                     }
 759                 }
 760                 else
 761                 {
 762                     /* 4:3 */
 763                     i_position = ( spu_control >> 24 ) & 0x7F;
 764                 }
 765
 766                 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
 767                 p_es = input_AddES( p_input, NULL, i_id, 0 );
 768                 p_es->i_stream_id = 0xbd;
 769                 p_es->i_type = DVD_SPU_ES;
 770                 p_es->i_cat = SPU_ES;
 771                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 772                     p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) ) );
 773             }
 774         }
 775 #undef spu_control
 776
 777         /* FIXME: hack to check that the demuxer is ready, and set
 778          * the decoders */
 779         if( p_input->p_demux_module )
 780         {
 781             DvdReadLauchDecoders( p_input );
 782         }
 783
 784     } /* i_title >= 0 */
 785     else
 786     {
 787         p_area = p_input->stream.p_selected_area;
 788     }
 789
 790     /*
 791      * Chapter selection
 792      */
 793
 794     if( p_area->i_part != p_dvd->i_chapter )
 795     {
 796         if( ( p_area->i_part > 0 ) &&
 797             ( p_area->i_part <= p_area->i_part_nb ))
 798         {
 799             p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
 800             pgc_id = p_vts->vts_ptt_srpt->title[
 801                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 802             pgn = p_vts->vts_ptt_srpt->title[
 803                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 804
 805             p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 806
 807             p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 808             p_dvd->i_chapter = p_area->i_part;
 809             DvdReadFindCell( p_dvd );
 810
 811             p_dvd->i_pack_len = 0;
 812             p_dvd->i_next_vobu = p_dvd->i_cur_block =
 813                     p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 814         }
 815         else
 816         {
 817             p_area->i_part = p_dvd->i_chapter;
 818         }
 819     }
 820 #undef p_vts
 821 #undef p_vmg
 822
 823     /* warn interface that something has changed */
 824     p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
 825     p_input->stream.b_seekable = 1;
 826     p_input->stream.b_changed = 1;
 827
 828     return 0;
 829 }
 830
 831
 832 /*****************************************************************************
 833  * DvdReadRead: reads data packets into the netlist.
 834  *****************************************************************************
 835  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 836  * EOF.
 837  *****************************************************************************/
 838 static int DvdReadRead( input_thread_t * p_input,
 839                         byte_t * p_buffer, size_t i_count )
 840 {
 841     thread_dvd_data_t *     p_dvd;
 842     byte_t *                p_buf;
 843     int                     i_blocks_once;
 844     int                     i_blocks;
 845     int                     i_read;
 846     int                     i_read_total;
 847     boolean_t               b_eot = 0;
 848
 849     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 850     p_buf = p_buffer;
 851
 852     /*
 853      * Playback by cell in this pgc, starting at the cell for our chapter.
 854      */
 855     i_blocks = OFF2LB( i_count );
 856     i_read_total = 0;
 857     i_read = 0;
 858
 859     while( i_blocks )
 860     {
 861         /*
 862          * End of pack, we select the following one
 863          */
 864         if( ! p_dvd->i_pack_len )
 865         {
 866             /*
 867              * Read NAV packet.
 868              */
 869             if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
 870                            1, p_buf ) ) != 1 )
 871             {
 872                 intf_ErrMsg( "dvdread error: read failed for block %d",
 873                              p_dvd->i_next_vobu );
 874                 return -1;
 875             }
 876
 877             /* basic check to be sure we don't have a empty title
 878              * go to next title if so */
 879             //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 880
 881             /*
 882              * Parse the contained dsi packet.
 883              */
 884
 885             DvdReadHandleDSI( p_dvd, p_buf );
 886
 887             /* End of File */
 888             if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
 889             {
 890                 return 1;
 891             }
 892
 893             assert( p_dvd->i_pack_len < 1024 );
 894             /* FIXME: Ugly kludge: we send the pack block to the input for it
 895              * sometimes has a zero scr and restart the sync */
 896             p_dvd->i_cur_block ++;
 897             //p_dvd->i_pack_len++;
 898
 899             i_read_total++;
 900             p_buf += DVD_VIDEO_LB_LEN;
 901             i_blocks--;
 902         }
 903
 904         /*
 905          * Compute the number of blocks to read
 906          */
 907         i_blocks_once = p_dvd->i_pack_len >= i_blocks
 908                  ? i_blocks : p_dvd->i_pack_len;
 909         p_dvd->i_pack_len -= i_blocks_once;
 910
 911         /* Reads from DVD */
 912         i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_cur_block,
 913                                 i_blocks_once, p_buf );
 914         if( i_read != i_blocks_once )
 915         {
 916             intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
 917                          i_read, i_blocks_once, p_dvd->i_cur_block );
 918             return -1;
 919         }
 920
 921         i_blocks -= i_read;
 922         i_read_total += i_read;
 923         p_dvd->i_cur_block += i_read;
 924         p_buf += LB2OFF( i_read );
 925
 926     }
 927 /*
 928     intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
 929 */
 930
 931     vlc_mutex_lock( &p_input->stream.stream_lock );
 932
 933     p_input->stream.p_selected_area->i_tell =
 934         LB2OFF( p_dvd->i_cur_block ) -
 935             p_input->stream.p_selected_area->i_start;
 936
 937     if( p_dvd->b_eoc )
 938     {
 939         /* We modify i_part only at end of chapter not to erase
 940          * some modification from the interface */
 941         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 942         p_dvd->b_eoc = 0;
 943     }
 944
 945     if( p_input->stream.p_selected_area->i_tell
 946             >= p_input->stream.p_selected_area->i_size || b_eot )
 947     {
 948         if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
 949                         p_input->stream.i_area_nb )
 950         {
 951             /* EOF */
 952             vlc_mutex_unlock( &p_input->stream.stream_lock );
 953             return 1;
 954         }
 955
 956         /* EOT */
 957         intf_WarnMsg( 4, "dvd info: new title" );
 958         DvdReadSetArea( p_input, p_input->stream.pp_areas[
 959                         p_input->stream.p_selected_area->i_id+1] );
 960         vlc_mutex_unlock( &p_input->stream.stream_lock );
 961         return 0;
 962     }
 963
 964     vlc_mutex_unlock( &p_input->stream.stream_lock );
 965
 966     return LB2OFF( i_read_total );
 967 }
 968 #undef p_pgc
 969
 970 /*****************************************************************************
 971  * DvdReadSeek : Goes to a given position on the stream.
 972  *****************************************************************************
 973  * This one is used by the input and translate chronological position from
 974  * input to logical position on the device.
 975  * The lock should be taken before calling this function.
 976  *****************************************************************************/
 977 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
 978 {
 979     thread_dvd_data_t *     p_dvd;
 980     int                     i_lb;
 981     int                     i_tmp;
 982     int                     i_chapter = 0;
 983     int                     i_cell = 0;
 984     int                     i_vobu = 0;
 985     int                     i_sub_cell = 0;
 986
 987     vlc_mutex_lock( &p_input->stream.stream_lock );
 988     i_off += p_input->stream.p_selected_area->i_start;
 989     vlc_mutex_unlock( &p_input->stream.stream_lock );
 990
 991     i_lb = OFF2LB( i_off );
 992     p_dvd = ( thread_dvd_data_t * )p_input->p_access_data;
 993
 994     /* find cell */
 995     while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
 996     {
 997         i_cell++;
 998     }
 999
1000     /* find chapter */
1001     do
1002     {
1003         pgc_t *     p_pgc;
1004         int         pgc_id, pgn;
1005
1006         i_chapter++;
1007         pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1008                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgcn;
1009         pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1010                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgn;
1011
1012         p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1013         i_tmp = p_pgc->program_map[pgn-1];
1014
1015     } while( i_tmp <= i_cell );
1016
1017     /* find vobu */
1018     while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
1019             <= i_lb )
1020     {
1021         i_vobu++;
1022     }
1023
1024     /* find sub_cell */
1025     while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1026             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1027     {
1028         i_sub_cell++;
1029     }
1030
1031 /*
1032     intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
1033             i_cell, i_sub_cell,i_chapter, i_vobu,
1034             p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
1035             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
1036             p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
1037 */
1038     p_dvd->i_cur_block = i_lb;
1039     p_dvd->i_next_vobu =
1040         p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
1041     p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
1042     p_dvd->i_cur_cell = i_cell;
1043     p_dvd->i_chapter = i_chapter;
1044     DvdReadFindCell( p_dvd );
1045
1046     vlc_mutex_lock( &p_input->stream.stream_lock );
1047     p_input->stream.p_selected_area->i_tell =
1048         LB2OFF ( p_dvd->i_cur_block )
1049          - p_input->stream.p_selected_area->i_start;
1050     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1051     vlc_mutex_unlock( &p_input->stream.stream_lock );
1052
1053     return;
1054 }
1055
1056 /*****************************************************************************
1057  * DvdReadHandleDSI
1058  *****************************************************************************/
1059 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
1060 {
1061     navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1062
1063     /*
1064      * Determine where we go next.  These values are the ones we mostly
1065      * care about.
1066      */
1067     p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1068
1069     /*
1070      * If we're not at the end of this cell, we can determine the next
1071      * VOBU to display using the VOBU_SRI information section of the
1072      * DSI.  Using this value correctly follows the current angle,
1073      * avoiding the doubled scenes in The Matrix, and makes our life
1074      * really happy.
1075      */
1076     if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1077     {
1078 #if 1
1079         switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1080         {
1081             case 0x4:
1082                 /* interleaved unit with no angle */
1083                 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1084                 {
1085                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1086                         p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1087                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1088                 }
1089                 else
1090                 {
1091                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1092                         p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1093                     p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1094                 }
1095                 break;
1096             case 0x5:
1097                 /* vobu is end of ilvu */
1098                 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1099                 {
1100                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1101                         p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1102                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1103
1104                     break;
1105                 }
1106             case 0x6:
1107                 /* vobu is beginning of ilvu */
1108             case 0x9:
1109                 /* next scr is 0 */
1110             case 0xa:
1111                 /* entering interleaved section */
1112             case 0x8:
1113                 /* non interleaved cells in interleaved section */
1114             default:
1115                 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1116                     ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1117                 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1118                 break;
1119         }
1120 #else
1121         p_dvd->i_next_vobu = p_dvd->i_cur_block +
1122             ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1123         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1124 #endif
1125     }
1126     else
1127     {
1128         p_dvd->i_cur_cell = p_dvd->i_next_cell;
1129         DvdReadFindCell( p_dvd );
1130
1131         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1132         p_dvd->i_next_vobu =
1133             p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1134     }
1135
1136 #if 0
1137     intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1138             p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1139             p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1140             p_dvd->dsi_pack.dsi_gi.vobu_ea,
1141             p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1142             p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1143
1144     intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1145             p_dvd->dsi_pack.sml_pbi.category,
1146             p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1147             p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1148             p_dvd->dsi_pack.sml_pbi.size );
1149
1150     intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1151             p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1152             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1153             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1154 #endif
1155 }
1156
1157 /*****************************************************************************
1158  * DvdReadFindCell
1159  *****************************************************************************/
1160 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1161 {
1162     int         pgc_id, pgn;
1163     int         i = 0;
1164     pgc_t *     p_pgc;
1165 #define cell p_dvd->p_cur_pgc->cell_playback
1166     if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1167     {
1168 #if 0
1169         p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1170         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1171 #else
1172         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1173
1174         while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1175         {
1176             i++;
1177         }
1178         p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1179 #endif
1180     }
1181     else
1182     {
1183         p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1184     }
1185 #undef cell
1186     pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1187                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgcn;
1188     pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1189                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgn;
1190     p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1191
1192     if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1193     {
1194         p_dvd->i_chapter++;
1195         p_dvd->b_eoc = 1;
1196     }
1197 }
1198
1199 /*****************************************************************************
1200  * DvdReadLaunchDecoders
1201  *****************************************************************************/
1202 static void DvdReadLauchDecoders( input_thread_t * p_input )
1203 {
1204     thread_dvd_data_t *  p_dvd;
1205
1206     p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
1207
1208     if( p_main->b_video )
1209     {
1210         input_SelectES( p_input, p_input->stream.pp_es[0] );
1211     }
1212
1213     if( p_main->b_audio )
1214     {
1215         /* For audio: first one if none or a not existing one specified */
1216         int i_audio = config_GetIntVariable( "input_channel" );
1217         if( i_audio < 0 /*|| i_audio > i_audio_nb*/ )
1218         {
1219             config_PutIntVariable( "input_channel", 1 );
1220             i_audio = 1;
1221         }
1222         if( i_audio > 0/* && i_audio_nb > 0*/ )
1223         {
1224             if( config_GetIntVariable( "input_audio" ) == REQUESTED_AC3 )
1225             {
1226                 int     i_ac3 = i_audio;
1227                 while( ( p_input->stream.pp_es[i_ac3]->i_type !=
1228                        AC3_AUDIO_ES ) && ( i_ac3 <=
1229                        p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams ) )
1230                 {
1231                     i_ac3++;
1232                 }
1233                 if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
1234                 {
1235                     input_SelectES( p_input,
1236                                     p_input->stream.pp_es[i_ac3] );
1237                 }
1238             }
1239             else
1240             {
1241                 input_SelectES( p_input,
1242                                 p_input->stream.pp_es[i_audio] );
1243             }
1244         }
1245     }
1246
1247     if( p_main->b_video )
1248     {
1249         /* for spu, default is none */
1250         int i_spu = config_GetIntVariable( "input_subtitle" );
1251         if( i_spu < 0 /*|| i_spu > i_spu_nb*/ )
1252         {
1253             config_PutIntVariable( "input_subtitle", 0 );
1254             i_spu = 0;
1255         }
1256         if( i_spu > 0 /*&& i_spu_nb > 0*/ )
1257         {
1258             i_spu += p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams;
1259             input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
1260         }
1261     }
1262 }