git.sesse.net Git - vlc/blob - plugins/dvd/input_dvd.c

   1 /* input_dvd.c: DVD raw reading plugin.
   2  *****************************************************************************
   3  * This plugins should handle all the known specificities of the DVD format,
   4  * especially the 2048 bytes logical block size.
   5  * It depends on:
   6  *  -libdvdcss for access and unscrambling
   7  *  -dvd_ifo for ifo parsing and analyse
   8  *  -dvd_udf to find files
   9  *****************************************************************************
  10  * Copyright (C) 1998-2001 VideoLAN
  11  * $Id: input_dvd.c,v 1.126 2002/03/03 17:34:27 xav Exp $
  12  *
  13  * Author: Stéphane Borel <stef@via.ecp.fr>
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  28  *****************************************************************************/
  29
  30 /*****************************************************************************
  31  * Preamble
  32  *****************************************************************************/
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.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
  49 #ifdef STRNCASECMP_IN_STRINGS_H
  50 #   include <strings.h>
  51 #endif
  52
  53 #if defined( WIN32 )
  54 #   include <io.h>                                                 /* read() */
  55 #else
  56 #   include <sys/uio.h>                                      /* struct iovec */
  57 #endif
  58
  59 #ifdef GOD_DAMN_DMCA
  60 #   include "dummy_dvdcss.h"
  61 #else
  62 #   include <videolan/dvdcss.h>
  63 #endif
  64
  65 #if defined( WIN32 )
  66 #   include "input_iovec.h"
  67 #endif
  68
  69 #include "stream_control.h"
  70 #include "input_ext-intf.h"
  71 #include "input_ext-dec.h"
  72 #include "input_ext-plugins.h"
  73
  74 #include "input_dvd.h"
  75 #include "dvd_ifo.h"
  76 #include "dvd_summary.h"
  77 #include "iso_lang.h"
  78
  79 #include "debug.h"
  80
  81 /* how many packets DVDDemux will read in each loop */
  82 #define DVD_READ_ONCE 64
  83
  84 /*****************************************************************************
  85  * Local prototypes
  86  *****************************************************************************/
  87
  88 /* called from outside */
  89 static int  DVDOpen         ( struct input_thread_s * );
  90 static void DVDClose        ( struct input_thread_s * );
  91 static int  DVDSetArea      ( struct input_thread_s *, struct input_area_s * );
  92 static int  DVDSetProgram   ( struct input_thread_s *, pgrm_descriptor_t * );
  93 static int  DVDRead         ( struct input_thread_s *, byte_t *, size_t );
  94 static void DVDSeek         ( struct input_thread_s *, off_t );
  95
  96 static int  DVDRewind       ( struct input_thread_s * );
  97 static int  DVDDemux        ( struct input_thread_s * );
  98 static int  DVDInit         ( struct input_thread_s * );
  99 static void DVDEnd          ( struct input_thread_s * );
 100
 101 /* called only inside */
 102 static void DVDLaunchDecoders( input_thread_t * p_input );
 103 static int  DVDChooseAngle( thread_dvd_data_t * );
 104 static int  DVDFindCell( thread_dvd_data_t * );
 105 static int  DVDFindSector( thread_dvd_data_t * );
 106 static int  DVDChapterSelect( thread_dvd_data_t *, int );
 107
 108 /*****************************************************************************
 109  * Functions exported as capabilities. They are declared as static so that
 110  * we don't pollute the namespace too much.
 111  *****************************************************************************/
 112 void _M( access_getfunctions)( function_list_t * p_function_list )
 113 {
 114 #define input p_function_list->functions.access
 115     input.pf_open             = DVDOpen;
 116     input.pf_close            = DVDClose;
 117     input.pf_read             = DVDRead;
 118     input.pf_set_area         = DVDSetArea;
 119     input.pf_set_program      = DVDSetProgram;
 120     input.pf_seek             = DVDSeek;
 121 #undef input
 122 }
 123
 124 void _M( demux_getfunctions)( function_list_t * p_function_list )
 125 {
 126 #define demux p_function_list->functions.demux
 127     demux.pf_init             = DVDInit;
 128     demux.pf_end              = DVDEnd;
 129     demux.pf_demux            = DVDDemux;
 130     demux.pf_rewind           = DVDRewind;
 131 #undef demux
 132 }
 133
 134 /*
 135  * Data demux functions
 136  */
 137
 138 /*****************************************************************************
 139  * DVDInit: initializes DVD structures
 140  *****************************************************************************/
 141 static int DVDInit( input_thread_t * p_input )
 142 {
 143
 144     if( strncmp( p_input->p_access_module->psz_name, "dvd", 3 ) )
 145     {
 146         return -1;
 147     }
 148
 149     vlc_mutex_lock( &p_input->stream.stream_lock );
 150
 151     DVDLaunchDecoders( p_input );
 152
 153     vlc_mutex_unlock( &p_input->stream.stream_lock );
 154
 155     return 0;
 156 }
 157
 158 /*****************************************************************************
 159  * DVDEnd: frees unused data
 160  *****************************************************************************/
 161 static void DVDEnd( input_thread_t * p_input )
 162 {
 163 }
 164
 165 /*****************************************************************************
 166  * DVDDemux
 167  *****************************************************************************/
 168 #define PEEK( SIZE )                                                        \
 169     i_result = input_Peek( p_input, &p_peek, SIZE );                        \
 170     if( i_result == -1 )                                                    \
 171     {                                                                       \
 172         return( -1 );                                                       \
 173     }                                                                       \
 174     else if( i_result < SIZE )                                              \
 175     {                                                                       \
 176         /* EOF */                                                           \
 177         return( 0 );                                                        \
 178     }
 179
 180 static int DVDDemux( input_thread_t * p_input )
 181 {
 182     int                 i;
 183     byte_t *            p_peek;
 184     data_packet_t *     p_data;
 185     ssize_t             i_result;
 186     int                 i_packet_size;
 187
 188
 189     /* Read headers to compute payload length */
 190     for( i = 0 ; i < DVD_READ_ONCE ; i++ )
 191     {
 192
 193         /* Read what we believe to be a packet header. */
 194         PEEK( 4 );
 195
 196         /* Default header */
 197         if( U32_AT( p_peek ) != 0x1BA )
 198         {
 199             /* That's the case for all packets, except pack header. */
 200             i_packet_size = U16_AT( p_peek + 4 );
 201         }
 202         else
 203         {
 204             /* MPEG-2 Pack header. */
 205             i_packet_size = 8;
 206         }
 207
 208         /* Fetch a packet of the appropriate size. */
 209         i_result = input_SplitBuffer( p_input, &p_data, i_packet_size + 6 );
 210         if( i_result <= 0 )
 211         {
 212             return( i_result );
 213         }
 214
 215         /* In MPEG-2 pack headers we still have to read stuffing bytes. */
 216         if( (p_data->p_demux_start[3] == 0xBA) && (i_packet_size == 8) )
 217         {
 218             size_t i_stuffing = (p_data->p_demux_start[13] & 0x7);
 219             /* Force refill of the input buffer - though we don't care
 220              * about p_peek. Please note that this is unoptimized. */
 221             PEEK( i_stuffing );
 222             p_input->p_current_data += i_stuffing;
 223         }
 224
 225         input_DemuxPS( p_input, p_data );
 226
 227     }
 228
 229     return i;
 230 }
 231
 232 /*****************************************************************************
 233  * DVDRewind : reads a stream backward
 234  *****************************************************************************/
 235 static int DVDRewind( input_thread_t * p_input )
 236 {
 237     return( -1 );
 238 }
 239
 240
 241
 242 /*
 243  * Data access functions
 244  */
 245
 246 /*****************************************************************************
 247  * DVDOpen: open dvd
 248  *****************************************************************************/
 249 static int DVDOpen( struct input_thread_s *p_input )
 250 {
 251     struct stat          stat_info;
 252     char *               psz_parser = p_input->psz_name;
 253     char *               psz_device = p_input->psz_name;
 254     dvdcss_handle        dvdhandle;
 255     thread_dvd_data_t *  p_dvd;
 256     input_area_t *       p_area;
 257     int                  i_title;
 258     int                  i_chapter;
 259     int                  i;
 260
 261     /* Parse input string : device[@rawdevice] */
 262     while( *psz_parser && *psz_parser != '@' )
 263     {
 264         psz_parser++;
 265     }
 266
 267     if( *psz_parser == '@' )
 268     {
 269         /* Found raw device */
 270         *psz_parser = '\0';
 271         psz_parser++;
 272
 273         config_PutPszVariable( "DVDCSS_RAW_DEVICE", psz_parser );
 274     }
 275
 276     if( stat( psz_device, &stat_info ) == -1 )
 277     {
 278         intf_ErrMsg( "input error: cannot stat() device `%s' (%s)",
 279                      psz_device, strerror(errno));
 280         return( -1 );
 281     }
 282
 283 #ifndef WIN32
 284     if( !S_ISBLK(stat_info.st_mode) && !S_ISCHR(stat_info.st_mode) )
 285     {
 286         intf_WarnMsg( 3, "input : DVD plugin discarded"
 287                          " (not a valid block device)" );
 288         return -1;
 289     }
 290 #endif
 291
 292     intf_WarnMsg( 2, "input: dvd=%s raw=%s", psz_device, psz_parser );
 293
 294     /*
 295      * set up input
 296      */
 297     p_input->i_mtu = 0;
 298
 299     vlc_mutex_lock( &p_input->stream.stream_lock );
 300
 301     p_input->stream.i_method = INPUT_METHOD_DVD;
 302
 303     /* If we are here we can control the pace... */
 304     p_input->stream.b_pace_control = 1;
 305
 306     p_input->stream.b_seekable = 1;
 307     p_input->stream.p_selected_area->i_size = 0;
 308
 309     p_input->stream.p_selected_area->i_tell = 0;
 310
 311     vlc_mutex_unlock( &p_input->stream.stream_lock );
 312
 313     /*
 314      *  get plugin ready
 315      */
 316     dvdhandle = dvdcss_open( psz_device );
 317
 318     if( dvdhandle == NULL )
 319     {
 320         intf_ErrMsg( "dvd error: dvdcss can't open device" );
 321         return -1;
 322     }
 323
 324     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 325     if( p_dvd == NULL )
 326     {
 327         intf_ErrMsg( "dvd error: out of memory" );
 328         return -1;
 329     }
 330
 331     p_dvd->dvdhandle = (dvdcss_handle) dvdhandle;
 332     p_input->p_access_data = (void *)p_dvd;
 333
 334     if( dvdcss_seek( p_dvd->dvdhandle, 0, DVDCSS_NOFLAGS ) < 0 )
 335     {
 336         intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
 337         return -1;
 338     }
 339
 340     /* Ifo allocation & initialisation */
 341     if( IfoCreate( p_dvd ) < 0 )
 342     {
 343         intf_ErrMsg( "dvd error: allcation error in ifo" );
 344         free( p_dvd );
 345         return -1;
 346     }
 347
 348     if( IfoInit( p_dvd->p_ifo ) < 0 )
 349     {
 350         intf_ErrMsg( "dvd error: fatal failure in ifo" );
 351         IfoDestroy( p_dvd->p_ifo );
 352         free( p_dvd );
 353         return -1;
 354     }
 355
 356     /* Set stream and area data */
 357     vlc_mutex_lock( &p_input->stream.stream_lock );
 358
 359     /* Initialize ES structures */
 360     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 361
 362 #define title_inf p_dvd->p_ifo->vmg.title_inf
 363     intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
 364
 365 #define area p_input->stream.pp_areas
 366     /* We start from 1 here since the default area 0
 367      * is reserved for video_ts.vob */
 368     for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
 369     {
 370         input_AddArea( p_input );
 371
 372         /* Titles are Program Chains */
 373         area[i]->i_id = i;
 374
 375         /* Absolute start offset and size
 376          * We can only set that with vts ifo, so we do it during the
 377          * first call to DVDSetArea */
 378         area[i]->i_start = 0;
 379         area[i]->i_size = 0;
 380
 381         /* Number of chapters */
 382         area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
 383         area[i]->i_part = 1;
 384
 385         /* Number of angles */
 386         area[i]->i_angle_nb = 0;
 387         area[i]->i_angle = 1;
 388
 389         /* Offset to vts_i_0.ifo */
 390         area[i]->i_plugin_data = p_dvd->p_ifo->i_start +
 391                        title_inf.p_attr[i-1].i_start_sector;
 392     }
 393 #undef area
 394
 395     /* Get requested title - if none try the first title */
 396     i_title = config_GetIntVariable( INPUT_TITLE_VAR );
 397     if( i_title <= 0 || i_title > title_inf.i_title_nb )
 398     {
 399         i_title = 1;
 400     }
 401
 402 #undef title_inf
 403
 404     /* Get requested chapter - if none defaults to first one */
 405     i_chapter = config_GetIntVariable( INPUT_CHAPTER_VAR );
 406     if( i_chapter <= 0 )
 407     {
 408         i_chapter = 1;
 409     }
 410
 411     p_area = p_input->stream.pp_areas[i_title];
 412     p_area->i_part = i_chapter;
 413
 414     /* set title, chapter, audio and subpic */
 415     if( DVDSetArea( p_input, p_area ) )
 416     {
 417         vlc_mutex_unlock( &p_input->stream.stream_lock );
 418         return -1;
 419     }
 420
 421     vlc_mutex_unlock( &p_input->stream.stream_lock );
 422
 423     return 0;
 424
 425 }
 426
 427 /*****************************************************************************
 428  * DVDClose: close dvd
 429  *****************************************************************************/
 430 static void DVDClose( struct input_thread_s *p_input )
 431 {
 432     thread_dvd_data_t *     p_dvd;
 433
 434     p_dvd = (thread_dvd_data_t*)p_input->p_access_data;
 435
 436     IfoDestroy( p_dvd->p_ifo );
 437
 438     p_input->p_access_data = (void *)(p_dvd->dvdhandle);
 439     free( p_dvd );
 440
 441     /* Clean up libdvdcss */
 442     dvdcss_close( (dvdcss_handle) p_input->p_access_data );
 443 }
 444
 445 /*****************************************************************************
 446  * DVDSetProgram: Does nothing, a DVD is mono-program
 447  *****************************************************************************/
 448 static int DVDSetProgram( input_thread_t * p_input,
 449             pgrm_descriptor_t * p_program )
 450 {
 451     return 0;
 452 }
 453
 454 /*****************************************************************************
 455  * DVDSetArea: initialize input data for title x, chapter y.
 456  * It should be called for each user navigation request.
 457  *****************************************************************************
 458  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 459  * Note that you have to take the lock before entering here.
 460  *****************************************************************************/
 461 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
 462 {
 463     thread_dvd_data_t *  p_dvd;
 464     es_descriptor_t *    p_es;
 465     u16                  i_id;
 466     int                  i_vts_title;
 467     int                  i_audio_nb = 0;
 468     int                  i_spu_nb = 0;
 469     int                  i;
 470
 471     p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
 472
 473     /* we can't use the interface slider until initilization is complete */
 474     p_input->stream.b_seekable = 0;
 475
 476     if( p_area != p_input->stream.p_selected_area )
 477     {
 478         /* Reset the Chapter position of the old title */
 479         p_input->stream.p_selected_area->i_part = 0;
 480
 481         /*
 482          *  We have to load all title information
 483          */
 484         /* Change the default area */
 485         p_input->stream.p_selected_area =
 486                     p_input->stream.pp_areas[p_area->i_id];
 487
 488         /* title number: it is not vts nb!,
 489          * it is what appears in the interface list */
 490         p_dvd->i_title = p_area->i_id;
 491         p_dvd->p_ifo->i_title = p_dvd->i_title;
 492
 493         /* set number of chapters of current title */
 494         p_dvd->i_chapter_nb = p_area->i_part_nb;
 495
 496         /* ifo vts */
 497         if( IfoTitleSet( p_dvd->p_ifo ) < 0 )
 498         {
 499             intf_ErrMsg( "dvd error: fatal error in vts ifo" );
 500             free( p_dvd );
 501             p_input->b_error = 1;
 502             return -1;
 503         }
 504
 505 #define vmg p_dvd->p_ifo->vmg
 506 #define vts p_dvd->p_ifo->vts
 507         /* title position inside the selected vts */
 508         i_vts_title = vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
 509         p_dvd->i_title_id =
 510             vts.title_inf.p_title_start[i_vts_title-1].i_title_id;
 511
 512         intf_WarnMsg( 3, "dvd: title %d vts_title %d pgc %d",
 513                       p_dvd->i_title, i_vts_title, p_dvd->i_title_id );
 514
 515         /*
 516          * Angle management
 517          */
 518         p_dvd->i_angle_nb = vmg.title_inf.p_attr[p_dvd->i_title-1].i_angle_nb;
 519         p_dvd->i_angle = config_GetIntVariable( INPUT_ANGLE_VAR );
 520         if( ( p_dvd->i_angle <= 0 ) || p_dvd->i_angle > p_dvd->i_angle_nb )
 521         {
 522             p_dvd->i_angle = 1;
 523         }
 524
 525         /*
 526          * Set selected title start and size
 527          */
 528
 529         /* title set offset XXX: convert to block values */
 530         p_dvd->i_title_start =
 531             vts.i_pos + vts.manager_inf.i_title_vob_start_sector;
 532
 533         /* last video cell */
 534         p_dvd->i_cell = 0;
 535         p_dvd->i_prg_cell = -1 +
 536             vts.title_unit.p_title[p_dvd->i_title_id-1].title.i_cell_nb;
 537
 538         if( DVDFindCell( p_dvd ) < 0 )
 539         {
 540             intf_ErrMsg( "dvd error: can't find title end" );
 541             p_input->b_error = 1;
 542             return -1;
 543         }
 544
 545         /* temporary hack to fix size in some dvds */
 546         if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
 547         {
 548             p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
 549         }
 550
 551         p_dvd->i_sector = 0;
 552         p_dvd->i_size = vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector;
 553
 554         if( DVDChapterSelect( p_dvd, 1 ) < 0 )
 555         {
 556             intf_ErrMsg( "dvd error: can't find first chapter" );
 557             p_input->b_error = 1;
 558             return -1;
 559         }
 560
 561         /* Force libdvdcss to check its title key.
 562          * It is only useful for title cracking method. Methods using the
 563          * decrypted disc key are fast enough to check the key at each seek */
 564
 565         if( dvdcss_seek( p_dvd->dvdhandle, p_dvd->i_start,
 566                             DVDCSS_SEEK_KEY ) < 0 )
 567         {
 568             intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
 569             return -1;
 570         }
 571
 572         p_dvd->i_size -= p_dvd->i_sector + 1;
 573
 574         IfoPrintTitle( p_dvd );
 575
 576         /* Area definition */
 577         p_input->stream.p_selected_area->i_start = LB2OFF( p_dvd->i_start );
 578         p_input->stream.p_selected_area->i_size = LB2OFF( p_dvd->i_size );
 579         p_input->stream.p_selected_area->i_angle_nb = p_dvd->i_angle_nb;
 580         p_input->stream.p_selected_area->i_angle = p_dvd->i_angle;
 581
 582 #if 0
 583         /* start at the beginning of the title */
 584         /* FIXME: create a conf option to select whether to restart
 585          * title or not */
 586         p_input->stream.p_selected_area->i_tell = 0;
 587         p_input->stream.p_selected_area->i_part = 1;
 588 #endif
 589
 590         /*
 591          * Destroy obsolete ES by reinitializing program 0
 592          * and find all ES in title with ifo data
 593          */
 594         if( p_input->stream.pp_programs != NULL )
 595         {
 596             /* We don't use input_EndStream here since
 597              * we keep area structures */
 598
 599             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 600             {
 601                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 602             }
 603
 604             free( p_input->stream.pp_selected_es );
 605             input_DelProgram( p_input, p_input->stream.p_selected_program );
 606
 607             p_input->stream.pp_selected_es = NULL;
 608             p_input->stream.i_selected_es_number = 0;
 609         }
 610
 611         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 612         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 613 //        p_input->stream.p_new_program = p_input->stream.pp_programs[0];
 614
 615         /* No PSM to read in DVD mode, we already have all information */
 616         p_input->stream.p_selected_program->b_is_ok = 1;
 617
 618         p_es = NULL;
 619
 620         /* ES 0 -> video MPEG2 */
 621         IfoPrintVideo( p_dvd );
 622
 623         p_es = input_AddES( p_input, p_input->stream.p_selected_program,
 624                 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_status \
 630     vts.title_unit.p_title[p_dvd->i_title_id-1].title.pi_audio_status[i-1]
 631         /* Audio ES, in the order they appear in .ifo */
 632         for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
 633         {
 634             IfoPrintAudio( p_dvd, i );
 635
 636             /* audio channel is active if first byte is 0x80 */
 637             if( audio_status.i_available )
 638             {
 639                 i_audio_nb++;
 640
 641                 switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
 642                 {
 643                 case 0x00:              /* AC3 */
 644                     i_id = ( ( 0x80 + audio_status.i_position ) << 8 ) | 0xbd;
 645                     p_es = input_AddES( p_input,
 646                                p_input->stream.p_selected_program, i_id, 0 );
 647                     p_es->i_stream_id = 0xbd;
 648                     p_es->i_type = AC3_AUDIO_ES;
 649                     p_es->b_audio = 1;
 650                     p_es->i_cat = AUDIO_ES;
 651                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 652                         vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 653                     strcat( p_es->psz_desc, " (ac3)" );
 654
 655                     break;
 656                 case 0x02:
 657                 case 0x03:              /* MPEG audio */
 658                     i_id = 0xc0 + audio_status.i_position;
 659                     p_es = input_AddES( p_input,
 660                                     p_input->stream.p_selected_program, i_id
 661                                     , 0 );
 662                     p_es->i_stream_id = i_id;
 663                     p_es->i_type = MPEG2_AUDIO_ES;
 664                     p_es->b_audio = 1;
 665                     p_es->i_cat = AUDIO_ES;
 666                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 667                         vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 668                     strcat( p_es->psz_desc, " (mpeg)" );
 669
 670                     break;
 671                 case 0x04:              /* LPCM */
 672
 673                     i_id = ( ( 0xa0 + audio_status.i_position ) << 8 ) | 0xbd;
 674                     p_es = input_AddES( p_input,
 675                                     p_input->stream.p_selected_program,
 676                                     i_id, 0 );
 677                     p_es->i_stream_id = 0xbd;
 678                     p_es->i_type = LPCM_AUDIO_ES;
 679                     p_es->b_audio = 1;
 680                     p_es->i_cat = AUDIO_ES;
 681                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 682                         vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 683                     strcat( p_es->psz_desc, " (lpcm)" );
 684
 685                     break;
 686                 case 0x06:              /* DTS */
 687                     i_id = ( ( 0x88 + audio_status.i_position ) << 8 ) | 0xbd;
 688                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 689                                  "(0x%x)", i_id );
 690                     break;
 691                 default:
 692                     i_id = 0;
 693                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 694                              vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
 695                 }
 696             }
 697         }
 698 #undef audio_status
 699 #define spu_status \
 700     vts.title_unit.p_title[p_dvd->i_title_id-1].title.pi_spu_status[i-1]
 701
 702         /* Sub Picture ES */
 703
 704         for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
 705         {
 706             IfoPrintSpu( p_dvd, i );
 707
 708             if( spu_status.i_available )
 709             {
 710                 i_spu_nb++;
 711
 712                 /*  there are several streams for one spu */
 713                 if(  vts.manager_inf.video_attr.i_ratio )
 714                 {
 715                     /* 16:9 */
 716                     switch( vts.manager_inf.video_attr.i_perm_displ )
 717                     {
 718                     case 1:
 719                         i_id = ( ( 0x20 + spu_status.i_position_pan ) << 8 )
 720                                | 0xbd;
 721                         break;
 722                     case 2:
 723                         i_id = ( ( 0x20 + spu_status.i_position_letter ) << 8 )
 724                                | 0xbd;
 725                         break;
 726                     default:
 727                         i_id = ( ( 0x20 + spu_status.i_position_wide ) << 8 )
 728                                | 0xbd;
 729                         break;
 730                     }
 731                 }
 732                 else
 733                 {
 734                     /* 4:3 */
 735                     i_id = ( ( 0x20 + spu_status.i_position_43 ) << 8 )
 736                            | 0xbd;
 737                 }
 738                 p_es = input_AddES( p_input,
 739                                     p_input->stream.p_selected_program,
 740                                     i_id, 0 );
 741                 p_es->i_stream_id = 0xbd;
 742                 p_es->i_type = DVD_SPU_ES;
 743                 p_es->i_cat = SPU_ES;
 744                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 745                     vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
 746             }
 747         }
 748 #undef spu_status
 749
 750         /* FIXME: hack to check that the demuxer is ready, and set
 751         * the decoders */
 752         if( p_input->p_demux_module )
 753         {
 754             DVDLaunchDecoders( p_input );
 755         }
 756
 757     } /* i_title >= 0 */
 758     else
 759     {
 760         p_area = p_input->stream.p_selected_area;
 761     }
 762 #undef vts
 763 #undef vmg
 764
 765     /*
 766      * Chapter selection
 767      */
 768
 769     if( p_area->i_part != p_dvd->i_chapter )
 770     {
 771         if( ( p_area->i_part > 0 ) &&
 772             ( p_area->i_part <= p_area->i_part_nb ))
 773         {
 774             if( DVDChapterSelect( p_dvd, p_area->i_part ) < 0 )
 775             {
 776                 intf_ErrMsg( "dvd error: can't set chapter in area" );
 777                 p_input->b_error = 1;
 778                 return -1;
 779             }
 780
 781             p_input->stream.p_selected_area->i_tell =
 782                                    LB2OFF( p_dvd->i_start ) - p_area->i_start;
 783             p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 784
 785             intf_WarnMsg( 4, "dvd info: chapter %d start at: %lld",
 786                                         p_area->i_part, p_area->i_tell );
 787         }
 788         else
 789         {
 790             p_area->i_part = 1;
 791             p_dvd->i_chapter = 1;
 792         }
 793     }
 794
 795 #define title \
 796     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_title_id-1].title
 797     if( p_area->i_angle != p_dvd->i_angle )
 798     {
 799         if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
 800         {
 801             if( ( p_area->i_angle - p_dvd->i_angle ) < 0 )
 802             {
 803                 p_dvd->i_cell = 0;
 804             }
 805             p_dvd->i_prg_cell += ( p_area->i_angle - p_dvd->i_angle );
 806             p_dvd->i_angle = p_area->i_angle;
 807
 808             DVDFindSector( p_dvd );
 809             p_dvd->i_cell += p_dvd->i_angle_cell;
 810         }
 811         else
 812         {
 813             p_dvd->i_angle = p_area->i_angle;
 814         }
 815
 816         intf_WarnMsg( 3, "dvd info: angle %d selected", p_area->i_angle );
 817     }
 818
 819     /* warn interface that something has changed */
 820     p_input->stream.b_seekable = 1;
 821     p_input->stream.b_changed = 1;
 822
 823     return 0;
 824 }
 825
 826
 827 /*****************************************************************************
 828  * DVDRead: reads data packets.
 829  *****************************************************************************
 830  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
 831  * bytes.
 832  *****************************************************************************/
 833 static int DVDRead( input_thread_t * p_input,
 834                     byte_t * p_buffer, size_t i_count )
 835 {
 836     thread_dvd_data_t *     p_dvd;
 837     int                     i_block_once;
 838     int                     i_read_blocks;
 839     int                     i_read_total;
 840     int                     i_sector;
 841     int                     i_blocks;
 842     boolean_t               b_eoc;
 843
 844     p_dvd = (thread_dvd_data_t *)(p_input->p_access_data);
 845
 846     i_sector = 0;
 847     i_read_total = 0;
 848     i_read_blocks = 0;
 849     b_eoc = 0;
 850
 851     i_blocks = OFF2LB(i_count);
 852
 853     while( i_blocks )
 854     {
 855         i_sector = p_dvd->i_title_start + p_dvd->i_sector;
 856         i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 857
 858         /* Get the position of the next cell if we're at cell end */
 859         if( i_block_once <= 0 )
 860         {
 861             int     i_angle;
 862
 863             p_dvd->i_cell++;
 864             p_dvd->i_angle_cell++;
 865
 866             /* Find cell index in adress map */
 867             if( DVDFindSector( p_dvd ) < 0 )
 868             {
 869                 intf_ErrMsg( "dvd error: can't find next cell" );
 870                 return 1;
 871             }
 872
 873             /* Position the fd pointer on the right address */
 874             if( ( i_sector = dvdcss_seek( p_dvd->dvdhandle,
 875                                 p_dvd->i_title_start + p_dvd->i_sector,
 876                                 DVDCSS_SEEK_MPEG ) ) < 0 )
 877             {
 878                 intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
 879                 return -1;
 880             }
 881
 882             /* update chapter : it will be easier when we have navigation
 883              * ES support */
 884             if( p_dvd->i_chapter < ( p_dvd->i_chapter_nb - 1 ) )
 885             {
 886                 if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
 887                 {
 888                     i_angle = p_dvd->i_angle - 1;
 889                 }
 890                 else
 891                 {
 892                     i_angle = 0;
 893                 }
 894                 if( title.chapter_map.pi_start_cell[p_dvd->i_chapter] <=
 895                     ( p_dvd->i_prg_cell - i_angle + 1 ) )
 896                 {
 897                     p_dvd->i_chapter++;
 898                     b_eoc = 1;
 899                 }
 900             }
 901
 902             i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 903         }
 904
 905         /* The number of blocks read is the max between the requested
 906          * value and the leaving block in the cell */
 907         if( i_block_once > i_blocks )
 908         {
 909             i_block_once = i_blocks;
 910         }
 911     /*
 912     intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
 913     */
 914
 915         /* Reads from DVD */
 916         i_read_blocks = dvdcss_read( p_dvd->dvdhandle, p_buffer,
 917                                      i_block_once, DVDCSS_READ_DECRYPT );
 918
 919         i_blocks -= i_read_blocks;
 920         p_buffer += LB2OFF( i_read_blocks );
 921         i_read_total += i_read_blocks;
 922
 923         /* Update global position */
 924         p_dvd->i_sector += i_read_blocks;
 925     }
 926
 927     vlc_mutex_lock( &p_input->stream.stream_lock );
 928
 929     p_input->stream.p_selected_area->i_tell =
 930         LB2OFF( i_sector + i_read_total ) -
 931         p_input->stream.p_selected_area->i_start;
 932     if( b_eoc )
 933     {
 934         /* We modify i_part only at end of chapter not to erase
 935          * some modification from the interface */
 936         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 937     }
 938
 939     if( p_input->stream.p_selected_area->i_tell
 940             >= p_input->stream.p_selected_area->i_size )
 941     {
 942         if( ( p_dvd->i_title + 1 ) >= p_input->stream.i_area_nb )
 943         {
 944             /* EOF */
 945             vlc_mutex_unlock( &p_input->stream.stream_lock );
 946             return 0;
 947         }
 948
 949         /* EOT */
 950         intf_WarnMsg( 4, "dvd info: new title" );
 951         p_dvd->i_title++;
 952         DVDSetArea( p_input, p_input->stream.pp_areas[p_dvd->i_title] );
 953         vlc_mutex_unlock( &p_input->stream.stream_lock );
 954         return LB2OFF( i_read_total );
 955     }
 956
 957     vlc_mutex_unlock( &p_input->stream.stream_lock );
 958 /*
 959     if( i_read_blocks != i_block_once )
 960     {
 961         return -1;
 962     }
 963 */
 964     return LB2OFF( i_read_total );
 965 }
 966
 967 /*****************************************************************************
 968  * DVDSeek : Goes to a given position on the stream.
 969  *****************************************************************************
 970  * This one is used by the input and translate chronological position from
 971  * input to logical position on the device.
 972  * The lock should be taken before calling this function.
 973  *****************************************************************************/
 974 static void DVDSeek( input_thread_t * p_input, off_t i_off )
 975 {
 976     thread_dvd_data_t *     p_dvd;
 977     int                     i_block;
 978     int                     i_prg_cell;
 979     int                     i_cell;
 980     int                     i_chapter;
 981     int                     i_angle;
 982
 983     p_dvd = ( thread_dvd_data_t * )(p_input->p_access_data);
 984
 985     vlc_mutex_lock( &p_input->stream.stream_lock );
 986     /* we have to take care of offset of beginning of title */
 987     p_dvd->i_sector = OFF2LB(i_off + p_input->stream.p_selected_area->i_start)
 988                        - p_dvd->i_title_start;
 989     vlc_mutex_unlock( &p_input->stream.stream_lock );
 990
 991     i_prg_cell = 0;
 992     i_chapter = 0;
 993
 994     /* parse vobu address map to find program cell */
 995     while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector  )
 996     {
 997         i_prg_cell++;
 998     }
 999
1000     p_dvd->i_prg_cell = i_prg_cell;
1001
1002     if( DVDChooseAngle( p_dvd ) < 0 )
1003     {
1004         p_input->b_error = 1;
1005         return;
1006     }
1007
1008     p_dvd->i_cell = 0;
1009
1010     /* Find first title cell which is inside program cell */
1011     if( DVDFindCell( p_dvd ) < 0 )
1012     {
1013         /* no following cell : we're at eof */
1014         intf_ErrMsg( "dvd error: cell seeking failed" );
1015         p_input->b_error = 1;
1016         return;
1017     }
1018
1019     i_cell = p_dvd->i_cell;
1020
1021 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1022     /* parse cell address map to find title cell containing sector */
1023     while( cell.i_end_sector < p_dvd->i_sector )
1024     {
1025         i_cell++;
1026     }
1027
1028     p_dvd->i_cell = i_cell;
1029
1030     /* if we're inside a multi-angle zone, we have to choose i_sector
1031      * in the current angle ; we can't do it all the time since cells
1032      * can be very wide out of such zones */
1033     if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
1034     {
1035         p_dvd->i_sector = __MAX(
1036                 cell.i_start_sector,
1037                 title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
1038     }
1039
1040     p_dvd->i_end_sector = __MIN(
1041             cell.i_end_sector,
1042             title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1043 #undef cell
1044     /* update chapter */
1045     if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
1046     {
1047         i_angle = p_dvd->i_angle - 1;
1048     }
1049     else
1050     {
1051         i_angle = 0;
1052     }
1053     if( p_dvd->i_chapter_nb > 1 )
1054     {
1055         while( ( title.chapter_map.pi_start_cell[i_chapter] <=
1056                     ( p_dvd->i_prg_cell - i_angle + 1 ) ) &&
1057                ( i_chapter < ( p_dvd->i_chapter_nb - 1 ) ) )
1058         {
1059             i_chapter++;
1060         }
1061     }
1062     else
1063     {
1064         i_chapter = 1;
1065     }
1066
1067     p_dvd->i_chapter = i_chapter;
1068
1069     if( ( i_block = dvdcss_seek( p_dvd->dvdhandle,
1070                                  p_dvd->i_title_start + p_dvd->i_sector,
1071                                  DVDCSS_SEEK_MPEG ) ) < 0 )
1072     {
1073         intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
1074         p_input->b_error = 1;
1075         return;
1076     }
1077
1078     vlc_mutex_lock( &p_input->stream.stream_lock );
1079     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1080     p_input->stream.p_selected_area->i_tell =
1081         LB2OFF ( i_block ) - p_input->stream.p_selected_area->i_start;
1082     vlc_mutex_unlock( &p_input->stream.stream_lock );
1083
1084     intf_WarnMsg( 7, "Program Cell: %d Cell: %d Chapter: %d",
1085                      p_dvd->i_prg_cell, p_dvd->i_cell, p_dvd->i_chapter );
1086
1087     return;
1088 }
1089
1090 #define cell  p_dvd->p_ifo->vts.cell_inf
1091
1092 /*****************************************************************************
1093  * DVDFindCell: adjust the title cell index with the program cell
1094  *****************************************************************************/
1095 static int DVDFindCell( thread_dvd_data_t * p_dvd )
1096 {
1097     int                 i_cell;
1098     int                 i_index;
1099
1100     i_cell = p_dvd->i_cell;
1101     i_index = p_dvd->i_prg_cell;
1102
1103     if( i_cell >= cell.i_cell_nb )
1104     {
1105         return -1;
1106     }
1107
1108     while( ( ( title.p_cell_pos[i_index].i_vob_id !=
1109                    cell.p_cell_map[i_cell].i_vob_id ) ||
1110       ( title.p_cell_pos[i_index].i_cell_id !=
1111                    cell.p_cell_map[i_cell].i_cell_id ) ) &&
1112            ( i_cell < cell.i_cell_nb - 1 ) )
1113     {
1114         i_cell++;
1115     }
1116
1117 /*
1118 intf_WarnMsg( 12, "FindCell: i_cell %d i_index %d found %d nb %d",
1119                     p_dvd->i_cell,
1120                     p_dvd->i_prg_cell,
1121                     i_cell,
1122                     cell.i_cell_nb );
1123 */
1124
1125     p_dvd->i_cell = i_cell;
1126
1127     return 0;
1128 }
1129
1130 #undef cell
1131
1132 /*****************************************************************************
1133  * DVDFindSector: find cell index in adress map from index in
1134  * information table program map and give corresponding sectors.
1135  *****************************************************************************/
1136 static int DVDFindSector( thread_dvd_data_t * p_dvd )
1137 {
1138
1139     if( p_dvd->i_sector > title.p_cell_play[p_dvd->i_prg_cell].i_end_sector )
1140     {
1141         p_dvd->i_prg_cell++;
1142
1143         if( DVDChooseAngle( p_dvd ) < 0 )
1144         {
1145             return -1;
1146         }
1147     }
1148
1149     if( DVDFindCell( p_dvd ) < 0 )
1150     {
1151         intf_ErrMsg( "dvd error: can't find sector" );
1152         return -1;
1153     }
1154
1155     /* Find start and end sectors of new cell */
1156 #if 1
1157     p_dvd->i_sector = __MAX(
1158          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
1159          title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
1160     p_dvd->i_end_sector = __MIN(
1161          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
1162          title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1163 #else
1164     p_dvd->i_sector = title.p_cell_play[p_dvd->i_prg_cell].i_start_sector;
1165     p_dvd->i_end_sector = title.p_cell_play[p_dvd->i_prg_cell].i_end_sector;
1166 #endif
1167
1168 /*
1169     intf_WarnMsg( 12, "cell: %d sector1: 0x%x end1: 0x%x\n"
1170                    "index: %d sector2: 0x%x end2: 0x%x\n"
1171                    "category: 0x%x ilvu end: 0x%x vobu start 0x%x",
1172         p_dvd->i_cell,
1173         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
1174         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
1175         p_dvd->i_prg_cell,
1176         title.p_cell_play[p_dvd->i_prg_cell].i_start_sector,
1177         title.p_cell_play[p_dvd->i_prg_cell].i_end_sector,
1178         title.p_cell_play[p_dvd->i_prg_cell].i_category,
1179         title.p_cell_play[p_dvd->i_prg_cell].i_first_ilvu_vobu_esector,
1180         title.p_cell_play[p_dvd->i_prg_cell].i_last_vobu_start_sector );
1181 */
1182
1183     return 0;
1184 }
1185
1186 /*****************************************************************************
1187  * DVDChapterSelect: find the cell corresponding to requested chapter
1188  *****************************************************************************/
1189 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
1190 {
1191
1192     /* Find cell index in Program chain for current chapter */
1193     p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
1194     p_dvd->i_cell = 0;
1195     p_dvd->i_sector = 0;
1196
1197     DVDChooseAngle( p_dvd );
1198
1199     /* Search for cell_index in cell adress_table and initialize
1200      * start sector */
1201     if( DVDFindSector( p_dvd ) < 0 )
1202     {
1203         intf_ErrMsg( "dvd error: can't select chapter" );
1204         return -1;
1205     }
1206
1207     /* start is : beginning of vts vobs + offset to vob x */
1208     p_dvd->i_start = p_dvd->i_title_start + p_dvd->i_sector;
1209
1210     /* Position the fd pointer on the right address */
1211     if( ( p_dvd->i_start = dvdcss_seek( p_dvd->dvdhandle,
1212                                         p_dvd->i_start,
1213                                         DVDCSS_SEEK_MPEG ) ) < 0 )
1214     {
1215         intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
1216         return -1;
1217     }
1218
1219     p_dvd->i_chapter = i_chapter;
1220     return 0;
1221 }
1222
1223 /*****************************************************************************
1224  * DVDChooseAngle: select the cell corresponding to the selected angle
1225  *****************************************************************************/
1226 static int DVDChooseAngle( thread_dvd_data_t * p_dvd )
1227 {
1228     /* basic handling of angles */
1229     switch( ( ( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
1230                     >> 12 ) )
1231     {
1232         /* we enter a muli-angle section */
1233         case 0x5:
1234             p_dvd->i_prg_cell += p_dvd->i_angle - 1;
1235             p_dvd->i_angle_cell = 0;
1236             break;
1237         /* we exit a multi-angle section */
1238         case 0x9:
1239         case 0xd:
1240             p_dvd->i_prg_cell += p_dvd->i_angle_nb - p_dvd->i_angle;
1241             break;
1242     }
1243
1244     return 0;
1245 }
1246
1247 #undef title
1248 /*****************************************************************************
1249  * DVDLaunchDecoders
1250  *****************************************************************************/
1251 static void DVDLaunchDecoders( input_thread_t * p_input )
1252 {
1253     thread_dvd_data_t *  p_dvd;
1254     int                  i_audio;
1255     int                  i_spu;
1256
1257     p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
1258
1259     /* Select Video stream (always 0) */
1260     if( p_main->b_video )
1261     {
1262         input_SelectES( p_input, p_input->stream.pp_es[0] );
1263     }
1264
1265     /* Select audio stream */
1266     if( p_main->b_audio )
1267     {
1268         /* For audio: first one if none or a not existing one specified */
1269         i_audio = config_GetIntVariable( INPUT_CHANNEL_VAR );
1270         if( i_audio < 0 /*|| i_audio > i_audio_nb*/ )
1271         {
1272             config_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
1273             i_audio = 1;
1274         }
1275         if( i_audio > 0 /*&& i_audio_nb > 0*/ )
1276         {
1277             if( config_GetIntVariable( AOUT_SPDIF_VAR ) ||
1278                 ( config_GetIntVariable( INPUT_AUDIO_VAR ) ==
1279                   REQUESTED_AC3 ) )
1280             {
1281                 int     i_ac3 = i_audio;
1282                 while( ( p_input->stream.pp_es[i_ac3]->i_type !=
1283                          AC3_AUDIO_ES ) && ( i_ac3 <=
1284                          p_dvd->p_ifo->vts.manager_inf.i_audio_nb ) )
1285                 {
1286                     i_ac3++;
1287                 }
1288                 if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
1289                 {
1290                     input_SelectES( p_input,
1291                                     p_input->stream.pp_es[i_ac3] );
1292                 }
1293             }
1294             else
1295             {
1296                 input_SelectES( p_input,
1297                                 p_input->stream.pp_es[i_audio] );
1298             }
1299         }
1300     }
1301
1302     /* Select subtitle */
1303     if( p_main->b_video )
1304     {
1305         /* for spu, default is none */
1306         i_spu = config_GetIntVariable( INPUT_SUBTITLE_VAR );
1307         if( i_spu < 0 /*|| i_spu > i_spu_nb*/ )
1308         {
1309             config_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
1310             i_spu = 0;
1311         }
1312         if( i_spu > 0 /* && i_spu_nb > 0*/ )
1313         {
1314             i_spu += p_dvd->p_ifo->vts.manager_inf.i_audio_nb;
1315             input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
1316         }
1317     }
1318 }