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 1.28 2002/03/05 00:50:37 stef 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( strncmp( p_input->p_access_module->psz_name, "dvdread", 7 ) )
 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( INPUT_DVD_DEVICE_VAR );
 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     p_dvd->i_title = i_title;
 342     p_dvd->i_chapter = i_chapter;
 343     p_dvd->i_angle = i_angle;
 344
 345     p_input->p_access_data = (void *)p_dvd;
 346
 347     /* Ifo allocation & initialisation */
 348     if( ! ( p_dvd->p_vmg_file = ifoOpen( p_dvd->p_dvdread, 0 ) ) )
 349     {
 350         intf_ErrMsg( "dvdread error: can't open VMG info" );
 351         free( p_dvd );
 352         return -1;
 353     }
 354     intf_WarnMsg( 2, "dvdread info: VMG opened" );
 355
 356     /* Set stream and area data */
 357     vlc_mutex_lock( &p_input->stream.stream_lock );
 358
 359     p_input->stream.i_method = INPUT_METHOD_DVD;
 360
 361     /* If we are here we can control the pace... */
 362     p_input->stream.b_pace_control = 1;
 363     p_input->stream.b_seekable = 1;
 364
 365     p_input->stream.p_selected_area->i_size = 0;
 366     p_input->stream.p_selected_area->i_tell = 0;
 367
 368     /* Initialize ES structures */
 369     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 370
 371     /* disc input method */
 372     p_input->stream.i_method = INPUT_METHOD_DVD;
 373
 374 #define tt_srpt p_dvd->p_vmg_file->tt_srpt
 375     intf_WarnMsg( 2, "dvdread info: number of titles: %d", tt_srpt->nr_of_srpts );
 376
 377 #define area p_input->stream.pp_areas
 378     /* We start from 1 here since the default area 0
 379      * is reserved for video_ts.vob */
 380     for( i = 1 ; i <= tt_srpt->nr_of_srpts ; i++ )
 381     {
 382         input_AddArea( p_input );
 383
 384         /* Titles are Program Chains */
 385         area[i]->i_id = i;
 386
 387         /* Absolute start offset and size
 388          * We can only set that with vts ifo, so we do it during the
 389          * first call to DVDSetArea */
 390         area[i]->i_start = 0;
 391         area[i]->i_size = 0;
 392
 393         /* Number of chapters */
 394         area[i]->i_part_nb = tt_srpt->title[i-1].nr_of_ptts;
 395         area[i]->i_part = 1;
 396
 397         /* Number of angles */
 398         area[i]->i_angle_nb = 0;
 399         area[i]->i_angle = 1;
 400
 401         area[i]->i_plugin_data = tt_srpt->title[i-1].title_set_nr;
 402     }
 403 #undef area
 404 #undef tt_srpt
 405
 406     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 407
 408     p_area = p_input->stream.pp_areas[i_title];
 409
 410     /* set title, chapter, audio and subpic */
 411     if( DvdReadSetArea( p_input, p_area ) )
 412     {
 413         vlc_mutex_unlock( &p_input->stream.stream_lock );
 414         return -1;
 415     }
 416
 417     vlc_mutex_unlock( &p_input->stream.stream_lock );
 418
 419     return 0;
 420 }
 421
 422 /*****************************************************************************
 423  * DvdReadClose: close libdvdread
 424  *****************************************************************************/
 425 static void DvdReadClose( struct input_thread_s *p_input )
 426 {
 427     thread_dvd_data_t *     p_dvd;
 428
 429     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 430
 431     /* close libdvdread */
 432     DVDCloseFile( p_dvd->p_title );
 433     ifoClose( p_dvd->p_vts_file );
 434     ifoClose( p_dvd->p_vmg_file );
 435
 436     DVDClose( p_dvd->p_dvdread );
 437     free( p_dvd );
 438     p_input->p_access_data = NULL;
 439
 440 }
 441
 442 /*****************************************************************************
 443  * DvdReadSetProgram: Does nothing, a DVD is mono-program
 444  *****************************************************************************/
 445 static int DvdReadSetProgram( input_thread_t * p_input,
 446                               pgrm_descriptor_t * p_program )
 447 {
 448     return 0;
 449 }
 450
 451 #define p_pgc         p_dvd->p_cur_pgc
 452
 453 /*****************************************************************************
 454  * DvdReadSetArea: initialize input data for title x, chapter y.
 455  * It should be called for each user navigation request.
 456  *****************************************************************************
 457  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 458  * Note that you have to take the lock before entering here.
 459  *****************************************************************************/
 460 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
 461 {
 462     thread_dvd_data_t *  p_dvd;
 463     int                  pgc_id = 0;
 464     int                  pgn = 0;
 465
 466     p_dvd = (thread_dvd_data_t*)p_input->p_access_data;
 467
 468     /* we can't use the interface slider until initilization is complete */
 469     p_input->stream.b_seekable = 0;
 470
 471     if( p_area != p_input->stream.p_selected_area )
 472     {
 473         es_descriptor_t *    p_es;
 474         int                  i_cell = 0;
 475         int                  i_audio_nb = 0;
 476         int                  i_spu_nb = 0;
 477         int                  i;
 478
 479 #define p_vmg         p_dvd->p_vmg_file
 480 #define p_vts         p_dvd->p_vts_file
 481         if( p_dvd->p_title != NULL )
 482         {
 483             DVDCloseFile( p_dvd->p_title );
 484         }
 485
 486         if( p_vts != NULL )
 487         {
 488             ifoClose( p_vts );
 489         }
 490
 491         /* Reset the Chapter position of the old title */
 492         p_input->stream.p_selected_area->i_part = 1;
 493
 494         /*
 495          *  We have to load all title information
 496          */
 497         /* Change the default area */
 498         p_input->stream.p_selected_area = p_area;
 499
 500         intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
 501             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 502             p_area->i_id );
 503
 504         /* ifo vts */
 505         if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
 506                 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
 507         {
 508             intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
 509             ifoClose( p_vmg );
 510             DVDClose( p_dvd->p_dvdread );
 511             return -1;
 512         }
 513
 514         /* title position inside the selected vts */
 515         p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
 516
 517         /*
 518          * Set selected title start
 519          */
 520         pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
 521         pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
 522         p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 523         i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 524
 525         p_area->i_start =
 526             LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
 527
 528         intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
 529                          p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
 530
 531         /*
 532          * Find title end
 533          */
 534         i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
 535
 536         p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
 537         p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
 538
 539         intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
 540                           p_area->i_start , p_area->i_size, p_dvd->i_end_block );
 541
 542         /*
 543          * Set properties for current chapter
 544          */
 545         /* Remeber current chapter */
 546         p_dvd->i_chapter = p_area->i_part;
 547         p_dvd->b_eoc = 0;
 548
 549         pgc_id = p_vts->vts_ptt_srpt->title[
 550                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 551         pgn = p_vts->vts_ptt_srpt->title[
 552                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 553
 554         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 555         p_dvd->i_pack_len = 0;
 556         p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
 557         DvdReadFindCell( p_dvd );
 558
 559         p_dvd->i_next_vobu = p_dvd->i_cur_block =
 560             p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 561
 562         /*
 563          * Angle management
 564          */
 565         p_dvd->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
 566
 567         if( p_dvd->i_angle > p_area->i_angle_nb )
 568         {
 569             p_dvd->i_angle = 1;
 570         }
 571
 572         p_area->i_angle = p_dvd->i_angle;
 573         p_area->i_angle_nb = p_dvd->i_angle_nb;
 574
 575         /*
 576          * We've got enough info, time to open the title set data.
 577          */
 578         if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
 579             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 580             DVD_READ_TITLE_VOBS ) ) )
 581         {
 582             intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
 583                          p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
 584             ifoClose( p_vts );
 585             ifoClose( p_vmg );
 586             DVDClose( p_dvd->p_dvdread );
 587             return -1;
 588         }
 589
 590 //        IfoPrintTitle( p_dvd );
 591
 592         /*
 593          * Destroy obsolete ES by reinitializing program 0
 594          * and find all ES in title with ifo data
 595          */
 596         if( p_input->stream.pp_programs != NULL )
 597         {
 598             /* We don't use input_EndStream here since
 599              * we keep area structures */
 600
 601             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 602             {
 603                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 604             }
 605
 606             free( p_input->stream.pp_selected_es );
 607             input_DelProgram( p_input, p_input->stream.p_selected_program );
 608
 609             p_input->stream.pp_selected_es = NULL;
 610             p_input->stream.i_selected_es_number = 0;
 611         }
 612
 613         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 614         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 615
 616         /* No PSM to read in DVD mode, we already have all information */
 617         p_input->stream.p_selected_program->b_is_ok = 1;
 618
 619         p_es = NULL;
 620
 621         /* ES 0 -> video MPEG2 */
 622 //        IfoPrintVideo( p_dvd );
 623
 624         p_es = input_AddES( p_input, p_input->stream.p_selected_program, 0xe0, 0 );
 625         p_es->i_stream_id = 0xe0;
 626         p_es->i_type = MPEG2_VIDEO_ES;
 627         p_es->i_cat = VIDEO_ES;
 628
 629 #define audio_control \
 630     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 631         /* Audio ES, in the order they appear in .ifo */
 632         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
 633         {
 634             int i_position = 0;
 635             u16 i_id;
 636
 637 //            IfoPrintAudio( p_dvd, i );
 638
 639             /* audio channel is active if first byte is 0x80 */
 640             if( audio_control & 0x8000 )
 641             {
 642                 i_audio_nb++;
 643                 i_position = ( audio_control & 0x7F00 ) >> 8;
 644
 645             intf_WarnMsg( 12, "dvd audio position  %d", i_position );
 646                 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
 647                 {
 648                 case 0x00:              /* AC3 */
 649                     i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
 650                     p_es = input_AddES( p_input,
 651                                p_input->stream.p_selected_program, i_id, 0 );
 652                     p_es->i_stream_id = 0xbd;
 653                     p_es->i_type = AC3_AUDIO_ES;
 654                     p_es->b_audio = 1;
 655                     p_es->i_cat = AUDIO_ES;
 656                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 657                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 658                     strcat( p_es->psz_desc, " (ac3)" );
 659
 660                     break;
 661                 case 0x02:
 662                 case 0x03:              /* MPEG audio */
 663                     i_id = 0xc0 + i_position;
 664                     p_es = input_AddES( p_input,
 665                                     p_input->stream.p_selected_program, i_id, 0 );
 666                     p_es->i_stream_id = i_id;
 667                     p_es->i_type = MPEG2_AUDIO_ES;
 668                     p_es->b_audio = 1;
 669                     p_es->i_cat = AUDIO_ES;
 670                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 671                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 672                     strcat( p_es->psz_desc, " (mpeg)" );
 673
 674                     break;
 675                 case 0x04:              /* LPCM */
 676
 677                     i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
 678                     p_es = input_AddES( p_input,
 679                                     p_input->stream.p_selected_program, i_id, 0 );
 680                     p_es->i_stream_id = i_id;
 681                     p_es->i_type = LPCM_AUDIO_ES;
 682                     p_es->b_audio = 1;
 683                     p_es->i_cat = AUDIO_ES;
 684                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 685                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 686                     strcat( p_es->psz_desc, " (lpcm)" );
 687
 688                     break;
 689                 case 0x06:              /* DTS */
 690                     i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
 691                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 692                                  "(0x%x)", i_id );
 693                     break;
 694                 default:
 695                     i_id = 0;
 696                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 697                              p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
 698                 }
 699             }
 700         }
 701 #undef audio_control
 702 #define spu_control \
 703     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 704
 705         /* Sub Picture ES */
 706
 707         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 708         {
 709             int i_position = 0;
 710             u16 i_id;
 711
 712 //            IfoPrintSpu( p_dvd, i );
 713             intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
 714
 715             if( spu_control & 0x80000000 )
 716             {
 717                 i_spu_nb++;
 718
 719                 /*  there are several streams for one spu */
 720                 if(  p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 721                 {
 722                     /* 16:9 */
 723                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 724                     {
 725                     case 1:
 726                         i_position = spu_control & 0xff;
 727                         break;
 728                     case 2:
 729                         i_position = ( spu_control >> 8 ) & 0xff;
 730                         break;
 731                     default:
 732                         i_position = ( spu_control >> 16 ) & 0xff;
 733                         break;
 734                     }
 735                 }
 736                 else
 737                 {
 738                     /* 4:3 */
 739                     i_position = ( spu_control >> 24 ) & 0x7F;
 740                 }
 741
 742                 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
 743                 p_es = input_AddES( p_input,
 744                                     p_input->stream.p_selected_program, i_id, 0 );
 745                 p_es->i_stream_id = 0xbd;
 746                 p_es->i_type = DVD_SPU_ES;
 747                 p_es->i_cat = SPU_ES;
 748                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 749                     p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) ) );
 750             }
 751         }
 752 #undef spu_control
 753
 754         /* FIXME: hack to check that the demuxer is ready, and set
 755          * the decoders */
 756         if( p_input->p_demux_module )
 757         {
 758             DvdReadLauchDecoders( p_input );
 759         }
 760
 761     } /* i_title >= 0 */
 762     else
 763     {
 764         p_area = p_input->stream.p_selected_area;
 765     }
 766
 767     /*
 768      * Chapter selection
 769      */
 770
 771     if( p_area->i_part != p_dvd->i_chapter )
 772     {
 773         if( ( p_area->i_part > 0 ) &&
 774             ( p_area->i_part <= p_area->i_part_nb ))
 775         {
 776             p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
 777             pgc_id = p_vts->vts_ptt_srpt->title[
 778                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 779             pgn = p_vts->vts_ptt_srpt->title[
 780                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 781
 782             p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 783
 784             p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 785             p_dvd->i_chapter = p_area->i_part;
 786             DvdReadFindCell( p_dvd );
 787
 788             p_dvd->i_pack_len = 0;
 789             p_dvd->i_next_vobu = p_dvd->i_cur_block =
 790                     p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 791         }
 792         else
 793         {
 794             p_area->i_part = p_dvd->i_chapter;
 795         }
 796     }
 797 #undef p_vts
 798 #undef p_vmg
 799
 800     if( p_area->i_angle != p_dvd->i_angle )
 801     {
 802         p_dvd->i_angle = p_area->i_angle;
 803
 804         intf_WarnMsg( 3, "dvd info: angle %d selected", p_area->i_angle );
 805     }
 806     /* warn interface that something has changed */
 807     p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
 808     p_input->stream.b_seekable = 1;
 809     p_input->stream.b_changed = 1;
 810
 811     return 0;
 812 }
 813
 814
 815 /*****************************************************************************
 816  * DvdReadRead: reads data packets into the netlist.
 817  *****************************************************************************
 818  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 819  * EOF.
 820  *****************************************************************************/
 821 static int DvdReadRead( input_thread_t * p_input,
 822                         byte_t * p_buffer, size_t i_count )
 823 {
 824     thread_dvd_data_t *     p_dvd;
 825     byte_t *                p_buf;
 826     int                     i_blocks_once;
 827     int                     i_blocks;
 828     int                     i_read;
 829     int                     i_read_total;
 830     boolean_t               b_eot = 0;
 831
 832     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 833     p_buf = p_buffer;
 834
 835     /*
 836      * Playback by cell in this pgc, starting at the cell for our chapter.
 837      */
 838     i_blocks = OFF2LB( i_count );
 839     i_read_total = 0;
 840     i_read = 0;
 841
 842     while( i_blocks )
 843     {
 844         /*
 845          * End of pack, we select the following one
 846          */
 847         if( ! p_dvd->i_pack_len )
 848         {
 849             /*
 850              * Read NAV packet.
 851              */
 852             if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
 853                            1, p_buf ) ) != 1 )
 854             {
 855                 intf_ErrMsg( "dvdread error: read failed for block %d",
 856                              p_dvd->i_next_vobu );
 857                 return -1;
 858             }
 859
 860             /* basic check to be sure we don't have a empty title
 861              * go to next title if so */
 862             //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 863
 864             /*
 865              * Parse the contained dsi packet.
 866              */
 867
 868             DvdReadHandleDSI( p_dvd, p_buf );
 869
 870             /* End of File */
 871             if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
 872             {
 873                 return 1;
 874             }
 875
 876             assert( p_dvd->i_pack_len < 1024 );
 877             /* FIXME: Ugly kludge: we send the pack block to the input for it
 878              * sometimes has a zero scr and restart the sync */
 879             p_dvd->i_cur_block ++;
 880             //p_dvd->i_pack_len++;
 881
 882             i_read_total++;
 883             p_buf += DVD_VIDEO_LB_LEN;
 884             i_blocks--;
 885         }
 886
 887         /*
 888          * Compute the number of blocks to read
 889          */
 890         i_blocks_once = p_dvd->i_pack_len >= i_blocks
 891                  ? i_blocks : p_dvd->i_pack_len;
 892         p_dvd->i_pack_len -= i_blocks_once;
 893
 894         /* Reads from DVD */
 895         i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_cur_block,
 896                                 i_blocks_once, p_buf );
 897         if( i_read != i_blocks_once )
 898         {
 899             intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
 900                          i_read, i_blocks_once, p_dvd->i_cur_block );
 901             return -1;
 902         }
 903
 904         i_blocks -= i_read;
 905         i_read_total += i_read;
 906         p_dvd->i_cur_block += i_read;
 907         p_buf += LB2OFF( i_read );
 908
 909     }
 910 /*
 911     intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
 912 */
 913
 914     vlc_mutex_lock( &p_input->stream.stream_lock );
 915
 916     p_input->stream.p_selected_area->i_tell =
 917         LB2OFF( p_dvd->i_cur_block ) -
 918             p_input->stream.p_selected_area->i_start;
 919
 920     if( p_dvd->b_eoc )
 921     {
 922         /* We modify i_part only at end of chapter not to erase
 923          * some modification from the interface */
 924         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 925         p_dvd->b_eoc = 0;
 926     }
 927
 928     if( p_input->stream.p_selected_area->i_tell
 929             >= p_input->stream.p_selected_area->i_size || b_eot )
 930     {
 931         if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
 932                         p_input->stream.i_area_nb )
 933         {
 934             /* EOF */
 935             vlc_mutex_unlock( &p_input->stream.stream_lock );
 936             return 1;
 937         }
 938
 939         /* EOT */
 940         intf_WarnMsg( 4, "dvd info: new title" );
 941         DvdReadSetArea( p_input, p_input->stream.pp_areas[
 942                         p_input->stream.p_selected_area->i_id+1] );
 943         vlc_mutex_unlock( &p_input->stream.stream_lock );
 944         return 0;
 945     }
 946
 947     vlc_mutex_unlock( &p_input->stream.stream_lock );
 948
 949     return LB2OFF( i_read_total );
 950 }
 951 #undef p_pgc
 952
 953 /*****************************************************************************
 954  * DvdReadSeek : Goes to a given position on the stream.
 955  *****************************************************************************
 956  * This one is used by the input and translate chronological position from
 957  * input to logical position on the device.
 958  * The lock should be taken before calling this function.
 959  *****************************************************************************/
 960 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
 961 {
 962     thread_dvd_data_t *     p_dvd;
 963     int                     i_lb;
 964     int                     i_tmp;
 965     int                     i_chapter = 0;
 966     int                     i_cell = 0;
 967     int                     i_vobu = 0;
 968     int                     i_sub_cell = 0;
 969
 970     vlc_mutex_lock( &p_input->stream.stream_lock );
 971     i_off += p_input->stream.p_selected_area->i_start;
 972     vlc_mutex_unlock( &p_input->stream.stream_lock );
 973
 974     i_lb = OFF2LB( i_off );
 975     p_dvd = ( thread_dvd_data_t * )p_input->p_access_data;
 976
 977     /* find cell */
 978     while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
 979     {
 980         i_cell++;
 981     }
 982
 983     /* find chapter */
 984     do
 985     {
 986         pgc_t *     p_pgc;
 987         int         pgc_id, pgn;
 988
 989         i_chapter++;
 990         pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
 991                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgcn;
 992         pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
 993                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgn;
 994
 995         p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 996         i_tmp = p_pgc->program_map[pgn-1];
 997
 998     } while( i_tmp <= i_cell );
 999
1000     /* find vobu */
1001     while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
1002             <= i_lb )
1003     {
1004         i_vobu++;
1005     }
1006
1007     /* find sub_cell */
1008     while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1009             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1010     {
1011         i_sub_cell++;
1012     }
1013
1014 /*
1015     intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
1016             i_cell, i_sub_cell,i_chapter, i_vobu,
1017             p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
1018             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
1019             p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
1020 */
1021     p_dvd->i_cur_block = i_lb;
1022     p_dvd->i_next_vobu =
1023         p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
1024     p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
1025     p_dvd->i_cur_cell = i_cell;
1026     p_dvd->i_chapter = i_chapter;
1027     DvdReadFindCell( p_dvd );
1028
1029     vlc_mutex_lock( &p_input->stream.stream_lock );
1030     p_input->stream.p_selected_area->i_tell =
1031         LB2OFF ( p_dvd->i_cur_block )
1032          - p_input->stream.p_selected_area->i_start;
1033     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1034     vlc_mutex_unlock( &p_input->stream.stream_lock );
1035
1036     return;
1037 }
1038
1039 /*****************************************************************************
1040  * DvdReadHandleDSI
1041  *****************************************************************************/
1042 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
1043 {
1044     navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1045
1046     /*
1047      * Determine where we go next.  These values are the ones we mostly
1048      * care about.
1049      */
1050     p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1051
1052     /*
1053      * If we're not at the end of this cell, we can determine the next
1054      * VOBU to display using the VOBU_SRI information section of the
1055      * DSI.  Using this value correctly follows the current angle,
1056      * avoiding the doubled scenes in The Matrix, and makes our life
1057      * really happy.
1058      */
1059     if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1060     {
1061 #if 1
1062         switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1063         {
1064             case 0x4:
1065                 /* interleaved unit with no angle */
1066                 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1067                 {
1068                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1069                         p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1070                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1071                 }
1072                 else
1073                 {
1074                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1075                         p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1076                     p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1077                 }
1078                 break;
1079             case 0x5:
1080                 /* vobu is end of ilvu */
1081                 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1082                 {
1083                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1084                         p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1085                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1086
1087                     break;
1088                 }
1089             case 0x6:
1090                 /* vobu is beginning of ilvu */
1091             case 0x9:
1092                 /* next scr is 0 */
1093             case 0xa:
1094                 /* entering interleaved section */
1095             case 0x8:
1096                 /* non interleaved cells in interleaved section */
1097             default:
1098                 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1099                     ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1100                 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1101                 break;
1102         }
1103 #else
1104         p_dvd->i_next_vobu = p_dvd->i_cur_block +
1105             ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1106         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1107 #endif
1108     }
1109     else
1110     {
1111         p_dvd->i_cur_cell = p_dvd->i_next_cell;
1112         DvdReadFindCell( p_dvd );
1113
1114         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1115         p_dvd->i_next_vobu =
1116             p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1117     }
1118
1119 #if 0
1120     intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1121             p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1122             p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1123             p_dvd->dsi_pack.dsi_gi.vobu_ea,
1124             p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1125             p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1126
1127     intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1128             p_dvd->dsi_pack.sml_pbi.category,
1129             p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1130             p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1131             p_dvd->dsi_pack.sml_pbi.size );
1132
1133     intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1134             p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1135             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1136             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1137 #endif
1138 }
1139
1140 /*****************************************************************************
1141  * DvdReadFindCell
1142  *****************************************************************************/
1143 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1144 {
1145     int         pgc_id, pgn;
1146     int         i = 0;
1147     pgc_t *     p_pgc;
1148 #define cell p_dvd->p_cur_pgc->cell_playback
1149     if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1150     {
1151 #if 0
1152         p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1153         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1154 #else
1155         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1156
1157         while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1158         {
1159             i++;
1160         }
1161         p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1162 #endif
1163     }
1164     else
1165     {
1166         p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1167     }
1168 #undef cell
1169     pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1170                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgcn;
1171     pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1172                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgn;
1173     p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1174
1175     if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1176     {
1177         p_dvd->i_chapter++;
1178         p_dvd->b_eoc = 1;
1179     }
1180 }
1181
1182 /*****************************************************************************
1183  * DvdReadLaunchDecoders
1184  *****************************************************************************/
1185 static void DvdReadLauchDecoders( input_thread_t * p_input )
1186 {
1187     thread_dvd_data_t *  p_dvd;
1188
1189     p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
1190
1191     if( p_main->b_video )
1192     {
1193         input_SelectES( p_input, p_input->stream.pp_es[0] );
1194     }
1195
1196     if( p_main->b_audio )
1197     {
1198         /* For audio: first one if none or a not existing one specified */
1199         int i_audio = config_GetIntVariable( INPUT_CHANNEL_VAR );
1200         if( i_audio < 0 /*|| i_audio > i_audio_nb*/ )
1201         {
1202             config_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
1203             i_audio = 1;
1204         }
1205         if( i_audio > 0/* && i_audio_nb > 0*/ )
1206         {
1207             if( config_GetIntVariable( AOUT_SPDIF_VAR ) ||
1208                 ( config_GetIntVariable( INPUT_AUDIO_VAR ) ==
1209                   REQUESTED_AC3 ) )
1210             {
1211                 int     i_ac3 = i_audio;
1212                 while( ( p_input->stream.pp_es[i_ac3]->i_type !=
1213                        AC3_AUDIO_ES ) && ( i_ac3 <=
1214                        p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams ) )
1215                 {
1216                     i_ac3++;
1217                 }
1218                 if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
1219                 {
1220                     input_SelectES( p_input,
1221                                     p_input->stream.pp_es[i_ac3] );
1222                 }
1223             }
1224             else
1225             {
1226                 input_SelectES( p_input,
1227                                 p_input->stream.pp_es[i_audio] );
1228             }
1229         }
1230     }
1231
1232     if( p_main->b_video )
1233     {
1234         /* for spu, default is none */
1235         int i_spu = config_GetIntVariable( INPUT_SUBTITLE_VAR );
1236         if( i_spu < 0 /*|| i_spu > i_spu_nb*/ )
1237         {
1238             config_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
1239             i_spu = 0;
1240         }
1241         if( i_spu > 0 /*&& i_spu_nb > 0*/ )
1242         {
1243             i_spu += p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams;
1244             input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
1245         }
1246     }
1247 }