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 1.29 2002/03/05 17:46:33 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
 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     return 0;
 419 }
 420
 421 /*****************************************************************************
 422  * DvdReadClose: close libdvdread
 423  *****************************************************************************/
 424 static void DvdReadClose( struct input_thread_s *p_input )
 425 {
 426     thread_dvd_data_t *     p_dvd;
 427
 428     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 429
 430     /* close libdvdread */
 431     DVDCloseFile( p_dvd->p_title );
 432     ifoClose( p_dvd->p_vts_file );
 433     ifoClose( p_dvd->p_vmg_file );
 434
 435     DVDClose( p_dvd->p_dvdread );
 436     free( p_dvd );
 437     p_input->p_access_data = NULL;
 438
 439 }
 440
 441 /*****************************************************************************
 442  * DvdReadSetProgram: Does nothing, a DVD is mono-program
 443  *****************************************************************************/
 444 static int DvdReadSetProgram( input_thread_t * p_input,
 445                               pgrm_descriptor_t * p_program )
 446 {
 447     if( p_input->stream.p_selected_program != p_program )
 448     {
 449         thread_dvd_data_t *  p_dvd;
 450
 451         p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
 452         p_dvd->i_angle = p_program->i_number;
 453
 454         memcpy( p_program, p_input->stream.p_selected_program,
 455                 sizeof(pgrm_descriptor_t) );
 456         p_program->i_number = p_dvd->i_angle;
 457         p_input->stream.p_selected_program = p_program;
 458
 459         intf_WarnMsg( 3, "dvd info: angle %d selected", p_dvd->i_angle );
 460     }
 461
 462     return 0;
 463 }
 464
 465 #define p_pgc         p_dvd->p_cur_pgc
 466
 467 /*****************************************************************************
 468  * DvdReadSetArea: initialize input data for title x, chapter y.
 469  * It should be called for each user navigation request.
 470  *****************************************************************************
 471  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 472  * Note that you have to take the lock before entering here.
 473  *****************************************************************************/
 474 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
 475 {
 476     thread_dvd_data_t *  p_dvd;
 477     int                  pgc_id = 0;
 478     int                  pgn = 0;
 479
 480     p_dvd = (thread_dvd_data_t*)p_input->p_access_data;
 481
 482     /* we can't use the interface slider until initilization is complete */
 483     p_input->stream.b_seekable = 0;
 484
 485     if( p_area != p_input->stream.p_selected_area )
 486     {
 487         es_descriptor_t *    p_es;
 488         int                  i_cell = 0;
 489         int                  i_audio_nb = 0;
 490         int                  i_spu_nb = 0;
 491         int                  i;
 492
 493 #define p_vmg         p_dvd->p_vmg_file
 494 #define p_vts         p_dvd->p_vts_file
 495         if( p_dvd->p_title != NULL )
 496         {
 497             DVDCloseFile( p_dvd->p_title );
 498         }
 499
 500         if( p_vts != NULL )
 501         {
 502             ifoClose( p_vts );
 503         }
 504
 505         /* Reset the Chapter position of the old title */
 506         p_input->stream.p_selected_area->i_part = 1;
 507
 508         /*
 509          *  We have to load all title information
 510          */
 511         /* Change the default area */
 512         p_input->stream.p_selected_area = p_area;
 513
 514         intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
 515             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 516             p_area->i_id );
 517
 518         /* ifo vts */
 519         if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
 520                 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
 521         {
 522             intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
 523             ifoClose( p_vmg );
 524             DVDClose( p_dvd->p_dvdread );
 525             return -1;
 526         }
 527
 528         /* title position inside the selected vts */
 529         p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
 530
 531         /*
 532          * Set selected title start
 533          */
 534         pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
 535         pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
 536         p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 537         i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 538
 539         p_area->i_start =
 540             LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
 541
 542         intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
 543                          p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
 544
 545         /*
 546          * Find title end
 547          */
 548         i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
 549
 550         p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
 551         p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
 552
 553         intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
 554                           p_area->i_start , p_area->i_size, p_dvd->i_end_block );
 555
 556         /*
 557          * Set properties for current chapter
 558          */
 559         /* Remeber current chapter */
 560         p_dvd->i_chapter = p_area->i_part;
 561         p_dvd->b_eoc = 0;
 562
 563         pgc_id = p_vts->vts_ptt_srpt->title[
 564                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 565         pgn = p_vts->vts_ptt_srpt->title[
 566                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 567
 568         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 569         p_dvd->i_pack_len = 0;
 570         p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
 571         DvdReadFindCell( p_dvd );
 572
 573         p_dvd->i_next_vobu = p_dvd->i_cur_block =
 574             p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 575
 576         /*
 577          * Angle management
 578          */
 579         p_dvd->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
 580
 581         if( p_dvd->i_angle > p_dvd->i_angle_nb )
 582         {
 583             p_dvd->i_angle = 1;
 584         }
 585
 586         /*
 587          * We've got enough info, time to open the title set data.
 588          */
 589         if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
 590             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 591             DVD_READ_TITLE_VOBS ) ) )
 592         {
 593             intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
 594                          p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
 595             ifoClose( p_vts );
 596             ifoClose( p_vmg );
 597             DVDClose( p_dvd->p_dvdread );
 598             return -1;
 599         }
 600
 601 //        IfoPrintTitle( p_dvd );
 602
 603         /*
 604          * Destroy obsolete ES by reinitializing program 0
 605          * and find all ES in title with ifo data
 606          */
 607         if( p_input->stream.pp_programs != NULL )
 608         {
 609             /* We don't use input_EndStream here since
 610              * we keep area structures */
 611
 612             for( i = 0 ; i < p_input->stream.i_es_number ; i++ )
 613             {
 614                 input_DelES( p_input, p_input->stream.pp_es[i] );
 615             }
 616
 617             for( i = 0 ; i < p_input->stream.i_pgrm_number ; i++ )
 618             {
 619                 input_DelProgram( p_input, p_input->stream.pp_programs[i] );
 620             }
 621
 622             if( p_input->stream.pp_selected_es )
 623             {
 624                 free( p_input->stream.pp_selected_es );
 625                 p_input->stream.pp_selected_es = NULL;
 626             }
 627             p_input->stream.i_selected_es_number = 0;
 628         }
 629
 630         input_AddProgram( p_input, 1, sizeof( stream_ps_data_t ) );
 631         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 632
 633         for( i = 1 ; i < p_dvd->i_angle_nb ; i++ )
 634         {
 635             input_AddProgram( p_input, i+1, 0 );
 636         }
 637
 638         DvdReadSetProgram( p_input,
 639                            p_input->stream.pp_programs[p_dvd->i_angle-1] );
 640
 641         /* No PSM to read in DVD mode, we already have all information */
 642         p_input->stream.p_selected_program->b_is_ok = 1;
 643
 644         p_es = NULL;
 645
 646         /* ES 0 -> video MPEG2 */
 647 //        IfoPrintVideo( p_dvd );
 648
 649         p_es = input_AddES( p_input, NULL, 0xe0, 0 );
 650         p_es->i_stream_id = 0xe0;
 651         p_es->i_type = MPEG2_VIDEO_ES;
 652         p_es->i_cat = VIDEO_ES;
 653
 654 #define audio_control \
 655     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 656         /* Audio ES, in the order they appear in .ifo */
 657         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
 658         {
 659             int i_position = 0;
 660             u16 i_id;
 661
 662 //            IfoPrintAudio( p_dvd, i );
 663
 664             /* audio channel is active if first byte is 0x80 */
 665             if( audio_control & 0x8000 )
 666             {
 667                 i_audio_nb++;
 668                 i_position = ( audio_control & 0x7F00 ) >> 8;
 669
 670             intf_WarnMsg( 12, "dvd audio position  %d", i_position );
 671                 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
 672                 {
 673                 case 0x00:              /* AC3 */
 674                     i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
 675                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 676                     p_es->i_stream_id = 0xbd;
 677                     p_es->i_type = AC3_AUDIO_ES;
 678                     p_es->b_audio = 1;
 679                     p_es->i_cat = AUDIO_ES;
 680                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 681                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 682                     strcat( p_es->psz_desc, " (ac3)" );
 683
 684                     break;
 685                 case 0x02:
 686                 case 0x03:              /* MPEG audio */
 687                     i_id = 0xc0 + i_position;
 688                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 689                     p_es->i_stream_id = i_id;
 690                     p_es->i_type = MPEG2_AUDIO_ES;
 691                     p_es->b_audio = 1;
 692                     p_es->i_cat = AUDIO_ES;
 693                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 694                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 695                     strcat( p_es->psz_desc, " (mpeg)" );
 696
 697                     break;
 698                 case 0x04:              /* LPCM */
 699
 700                     i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
 701                     p_es = input_AddES( p_input, NULL, i_id, 0 );
 702                     p_es->i_stream_id = i_id;
 703                     p_es->i_type = LPCM_AUDIO_ES;
 704                     p_es->b_audio = 1;
 705                     p_es->i_cat = AUDIO_ES;
 706                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 707                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 708                     strcat( p_es->psz_desc, " (lpcm)" );
 709
 710                     break;
 711                 case 0x06:              /* DTS */
 712                     i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
 713                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 714                                  "(0x%x)", i_id );
 715                     break;
 716                 default:
 717                     i_id = 0;
 718                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 719                              p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
 720                 }
 721             }
 722         }
 723 #undef audio_control
 724 #define spu_control \
 725     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 726
 727         /* Sub Picture ES */
 728
 729         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 730         {
 731             int i_position = 0;
 732             u16 i_id;
 733
 734 //            IfoPrintSpu( p_dvd, i );
 735             intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
 736
 737             if( spu_control & 0x80000000 )
 738             {
 739                 i_spu_nb++;
 740
 741                 /*  there are several streams for one spu */
 742                 if(  p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 743                 {
 744                     /* 16:9 */
 745                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 746                     {
 747                     case 1:
 748                         i_position = spu_control & 0xff;
 749                         break;
 750                     case 2:
 751                         i_position = ( spu_control >> 8 ) & 0xff;
 752                         break;
 753                     default:
 754                         i_position = ( spu_control >> 16 ) & 0xff;
 755                         break;
 756                     }
 757                 }
 758                 else
 759                 {
 760                     /* 4:3 */
 761                     i_position = ( spu_control >> 24 ) & 0x7F;
 762                 }
 763
 764                 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
 765                 p_es = input_AddES( p_input, NULL, i_id, 0 );
 766                 p_es->i_stream_id = 0xbd;
 767                 p_es->i_type = DVD_SPU_ES;
 768                 p_es->i_cat = SPU_ES;
 769                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 770                     p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) ) );
 771             }
 772         }
 773 #undef spu_control
 774
 775         /* FIXME: hack to check that the demuxer is ready, and set
 776          * the decoders */
 777         if( p_input->p_demux_module )
 778         {
 779             DvdReadLauchDecoders( p_input );
 780         }
 781
 782     } /* i_title >= 0 */
 783     else
 784     {
 785         p_area = p_input->stream.p_selected_area;
 786     }
 787
 788     /*
 789      * Chapter selection
 790      */
 791
 792     if( p_area->i_part != p_dvd->i_chapter )
 793     {
 794         if( ( p_area->i_part > 0 ) &&
 795             ( p_area->i_part <= p_area->i_part_nb ))
 796         {
 797             p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
 798             pgc_id = p_vts->vts_ptt_srpt->title[
 799                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 800             pgn = p_vts->vts_ptt_srpt->title[
 801                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 802
 803             p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 804
 805             p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 806             p_dvd->i_chapter = p_area->i_part;
 807             DvdReadFindCell( p_dvd );
 808
 809             p_dvd->i_pack_len = 0;
 810             p_dvd->i_next_vobu = p_dvd->i_cur_block =
 811                     p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 812         }
 813         else
 814         {
 815             p_area->i_part = p_dvd->i_chapter;
 816         }
 817     }
 818 #undef p_vts
 819 #undef p_vmg
 820
 821     /* warn interface that something has changed */
 822     p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
 823     p_input->stream.b_seekable = 1;
 824     p_input->stream.b_changed = 1;
 825
 826     return 0;
 827 }
 828
 829
 830 /*****************************************************************************
 831  * DvdReadRead: reads data packets into the netlist.
 832  *****************************************************************************
 833  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 834  * EOF.
 835  *****************************************************************************/
 836 static int DvdReadRead( input_thread_t * p_input,
 837                         byte_t * p_buffer, size_t i_count )
 838 {
 839     thread_dvd_data_t *     p_dvd;
 840     byte_t *                p_buf;
 841     int                     i_blocks_once;
 842     int                     i_blocks;
 843     int                     i_read;
 844     int                     i_read_total;
 845     boolean_t               b_eot = 0;
 846
 847     p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
 848     p_buf = p_buffer;
 849
 850     /*
 851      * Playback by cell in this pgc, starting at the cell for our chapter.
 852      */
 853     i_blocks = OFF2LB( i_count );
 854     i_read_total = 0;
 855     i_read = 0;
 856
 857     while( i_blocks )
 858     {
 859         /*
 860          * End of pack, we select the following one
 861          */
 862         if( ! p_dvd->i_pack_len )
 863         {
 864             /*
 865              * Read NAV packet.
 866              */
 867             if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
 868                            1, p_buf ) ) != 1 )
 869             {
 870                 intf_ErrMsg( "dvdread error: read failed for block %d",
 871                              p_dvd->i_next_vobu );
 872                 return -1;
 873             }
 874
 875             /* basic check to be sure we don't have a empty title
 876              * go to next title if so */
 877             //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 878
 879             /*
 880              * Parse the contained dsi packet.
 881              */
 882
 883             DvdReadHandleDSI( p_dvd, p_buf );
 884
 885             /* End of File */
 886             if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
 887             {
 888                 return 1;
 889             }
 890
 891             assert( p_dvd->i_pack_len < 1024 );
 892             /* FIXME: Ugly kludge: we send the pack block to the input for it
 893              * sometimes has a zero scr and restart the sync */
 894             p_dvd->i_cur_block ++;
 895             //p_dvd->i_pack_len++;
 896
 897             i_read_total++;
 898             p_buf += DVD_VIDEO_LB_LEN;
 899             i_blocks--;
 900         }
 901
 902         /*
 903          * Compute the number of blocks to read
 904          */
 905         i_blocks_once = p_dvd->i_pack_len >= i_blocks
 906                  ? i_blocks : p_dvd->i_pack_len;
 907         p_dvd->i_pack_len -= i_blocks_once;
 908
 909         /* Reads from DVD */
 910         i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_cur_block,
 911                                 i_blocks_once, p_buf );
 912         if( i_read != i_blocks_once )
 913         {
 914             intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
 915                          i_read, i_blocks_once, p_dvd->i_cur_block );
 916             return -1;
 917         }
 918
 919         i_blocks -= i_read;
 920         i_read_total += i_read;
 921         p_dvd->i_cur_block += i_read;
 922         p_buf += LB2OFF( i_read );
 923
 924     }
 925 /*
 926     intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
 927 */
 928
 929     vlc_mutex_lock( &p_input->stream.stream_lock );
 930
 931     p_input->stream.p_selected_area->i_tell =
 932         LB2OFF( p_dvd->i_cur_block ) -
 933             p_input->stream.p_selected_area->i_start;
 934
 935     if( p_dvd->b_eoc )
 936     {
 937         /* We modify i_part only at end of chapter not to erase
 938          * some modification from the interface */
 939         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 940         p_dvd->b_eoc = 0;
 941     }
 942
 943     if( p_input->stream.p_selected_area->i_tell
 944             >= p_input->stream.p_selected_area->i_size || b_eot )
 945     {
 946         if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
 947                         p_input->stream.i_area_nb )
 948         {
 949             /* EOF */
 950             vlc_mutex_unlock( &p_input->stream.stream_lock );
 951             return 1;
 952         }
 953
 954         /* EOT */
 955         intf_WarnMsg( 4, "dvd info: new title" );
 956         DvdReadSetArea( p_input, p_input->stream.pp_areas[
 957                         p_input->stream.p_selected_area->i_id+1] );
 958         vlc_mutex_unlock( &p_input->stream.stream_lock );
 959         return 0;
 960     }
 961
 962     vlc_mutex_unlock( &p_input->stream.stream_lock );
 963
 964     return LB2OFF( i_read_total );
 965 }
 966 #undef p_pgc
 967
 968 /*****************************************************************************
 969  * DvdReadSeek : Goes to a given position on the stream.
 970  *****************************************************************************
 971  * This one is used by the input and translate chronological position from
 972  * input to logical position on the device.
 973  * The lock should be taken before calling this function.
 974  *****************************************************************************/
 975 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
 976 {
 977     thread_dvd_data_t *     p_dvd;
 978     int                     i_lb;
 979     int                     i_tmp;
 980     int                     i_chapter = 0;
 981     int                     i_cell = 0;
 982     int                     i_vobu = 0;
 983     int                     i_sub_cell = 0;
 984
 985     vlc_mutex_lock( &p_input->stream.stream_lock );
 986     i_off += p_input->stream.p_selected_area->i_start;
 987     vlc_mutex_unlock( &p_input->stream.stream_lock );
 988
 989     i_lb = OFF2LB( i_off );
 990     p_dvd = ( thread_dvd_data_t * )p_input->p_access_data;
 991
 992     /* find cell */
 993     while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
 994     {
 995         i_cell++;
 996     }
 997
 998     /* find chapter */
 999     do
1000     {
1001         pgc_t *     p_pgc;
1002         int         pgc_id, pgn;
1003
1004         i_chapter++;
1005         pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1006                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgcn;
1007         pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1008                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgn;
1009
1010         p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1011         i_tmp = p_pgc->program_map[pgn-1];
1012
1013     } while( i_tmp <= i_cell );
1014
1015     /* find vobu */
1016     while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
1017             <= i_lb )
1018     {
1019         i_vobu++;
1020     }
1021
1022     /* find sub_cell */
1023     while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1024             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1025     {
1026         i_sub_cell++;
1027     }
1028
1029 /*
1030     intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
1031             i_cell, i_sub_cell,i_chapter, i_vobu,
1032             p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
1033             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
1034             p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
1035 */
1036     p_dvd->i_cur_block = i_lb;
1037     p_dvd->i_next_vobu =
1038         p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
1039     p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
1040     p_dvd->i_cur_cell = i_cell;
1041     p_dvd->i_chapter = i_chapter;
1042     DvdReadFindCell( p_dvd );
1043
1044     vlc_mutex_lock( &p_input->stream.stream_lock );
1045     p_input->stream.p_selected_area->i_tell =
1046         LB2OFF ( p_dvd->i_cur_block )
1047          - p_input->stream.p_selected_area->i_start;
1048     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1049     vlc_mutex_unlock( &p_input->stream.stream_lock );
1050
1051     return;
1052 }
1053
1054 /*****************************************************************************
1055  * DvdReadHandleDSI
1056  *****************************************************************************/
1057 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
1058 {
1059     navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1060
1061     /*
1062      * Determine where we go next.  These values are the ones we mostly
1063      * care about.
1064      */
1065     p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1066
1067     /*
1068      * If we're not at the end of this cell, we can determine the next
1069      * VOBU to display using the VOBU_SRI information section of the
1070      * DSI.  Using this value correctly follows the current angle,
1071      * avoiding the doubled scenes in The Matrix, and makes our life
1072      * really happy.
1073      */
1074     if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1075     {
1076 #if 1
1077         switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1078         {
1079             case 0x4:
1080                 /* interleaved unit with no angle */
1081                 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1082                 {
1083                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1084                         p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1085                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1086                 }
1087                 else
1088                 {
1089                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1090                         p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1091                     p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1092                 }
1093                 break;
1094             case 0x5:
1095                 /* vobu is end of ilvu */
1096                 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1097                 {
1098                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1099                         p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1100                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1101
1102                     break;
1103                 }
1104             case 0x6:
1105                 /* vobu is beginning of ilvu */
1106             case 0x9:
1107                 /* next scr is 0 */
1108             case 0xa:
1109                 /* entering interleaved section */
1110             case 0x8:
1111                 /* non interleaved cells in interleaved section */
1112             default:
1113                 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1114                     ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1115                 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1116                 break;
1117         }
1118 #else
1119         p_dvd->i_next_vobu = p_dvd->i_cur_block +
1120             ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1121         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1122 #endif
1123     }
1124     else
1125     {
1126         p_dvd->i_cur_cell = p_dvd->i_next_cell;
1127         DvdReadFindCell( p_dvd );
1128
1129         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1130         p_dvd->i_next_vobu =
1131             p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1132     }
1133
1134 #if 0
1135     intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1136             p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1137             p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1138             p_dvd->dsi_pack.dsi_gi.vobu_ea,
1139             p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1140             p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1141
1142     intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1143             p_dvd->dsi_pack.sml_pbi.category,
1144             p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1145             p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1146             p_dvd->dsi_pack.sml_pbi.size );
1147
1148     intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1149             p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1150             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1151             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1152 #endif
1153 }
1154
1155 /*****************************************************************************
1156  * DvdReadFindCell
1157  *****************************************************************************/
1158 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1159 {
1160     int         pgc_id, pgn;
1161     int         i = 0;
1162     pgc_t *     p_pgc;
1163 #define cell p_dvd->p_cur_pgc->cell_playback
1164     if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1165     {
1166 #if 0
1167         p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1168         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1169 #else
1170         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1171
1172         while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1173         {
1174             i++;
1175         }
1176         p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1177 #endif
1178     }
1179     else
1180     {
1181         p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1182     }
1183 #undef cell
1184     pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1185                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgcn;
1186     pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1187                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgn;
1188     p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1189
1190     if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1191     {
1192         p_dvd->i_chapter++;
1193         p_dvd->b_eoc = 1;
1194     }
1195 }
1196
1197 /*****************************************************************************
1198  * DvdReadLaunchDecoders
1199  *****************************************************************************/
1200 static void DvdReadLauchDecoders( input_thread_t * p_input )
1201 {
1202     thread_dvd_data_t *  p_dvd;
1203
1204     p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
1205
1206     if( p_main->b_video )
1207     {
1208         input_SelectES( p_input, p_input->stream.pp_es[0] );
1209     }
1210
1211     if( p_main->b_audio )
1212     {
1213         /* For audio: first one if none or a not existing one specified */
1214         int i_audio = config_GetIntVariable( INPUT_CHANNEL_VAR );
1215         if( i_audio < 0 /*|| i_audio > i_audio_nb*/ )
1216         {
1217             config_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
1218             i_audio = 1;
1219         }
1220         if( i_audio > 0/* && i_audio_nb > 0*/ )
1221         {
1222             if( config_GetIntVariable( AOUT_SPDIF_VAR ) ||
1223                 ( config_GetIntVariable( INPUT_AUDIO_VAR ) ==
1224                   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_VAR );
1251         if( i_spu < 0 /*|| i_spu > i_spu_nb*/ )
1252         {
1253             config_PutIntVariable( INPUT_SUBTITLE_VAR, 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 }