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

   1 /*****************************************************************************
   2  * input_dvd.c: DVD raw reading 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:
   7  *  -libdvdcss for access and unscrambling
   8  *  -dvd_ifo for ifo parsing and analyse
   9  *  -dvd_udf to find files
  10  *****************************************************************************
  11  * Copyright (C) 1998-2001 VideoLAN
  12  * $Id: input_dvd.c,v 1.120 2002/02/19 00:50:19 sam Exp $
  13  *
  14  * Author: Stéphane Borel <stef@via.ecp.fr>
  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 #include <string.h>
  37
  38 #include <videolan/vlc.h>
  39
  40 #ifdef HAVE_UNISTD_H
  41 #   include <unistd.h>
  42 #endif
  43
  44 #include <fcntl.h>
  45 #include <sys/types.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 blocks DVDRead will read in each loop */
  82 #define DVD_BLOCK_READ_ONCE 64
  83
  84 /*****************************************************************************
  85  * Local prototypes
  86  *****************************************************************************/
  87 /* called from outside */
  88 static int  DVDProbe        ( struct input_thread_s * );
  89 static void DVDInit         ( struct input_thread_s * );
  90 static void DVDEnd          ( struct input_thread_s * );
  91 static void DVDOpen         ( struct input_thread_s * );
  92 static void DVDClose        ( struct input_thread_s * );
  93 static int  DVDSetArea      ( struct input_thread_s *, struct input_area_s * );
  94 static int  DVDSetProgram   ( struct input_thread_s *, pgrm_descriptor_t * );
  95 static int  DVDRead         ( struct input_thread_s *, data_packet_t ** );
  96 static void DVDSeek         ( struct input_thread_s *, off_t );
  97 static int  DVDRewind       ( struct input_thread_s * );
  98
  99 /* called only inside */
 100 static int  DVDChooseAngle( thread_dvd_data_t * );
 101 static int  DVDFindCell( thread_dvd_data_t * );
 102 static int  DVDFindSector( thread_dvd_data_t * );
 103 static int  DVDChapterSelect( thread_dvd_data_t *, int );
 104
 105 /*****************************************************************************
 106  * Declare a buffer manager
 107  *****************************************************************************/
 108 #define FLAGS           BUFFERS_UNIQUE_SIZE
 109 #define NB_LIFO         1
 110 DECLARE_BUFFERS_SHARED( FLAGS, NB_LIFO );
 111 DECLARE_BUFFERS_INIT( FLAGS, NB_LIFO );
 112 DECLARE_BUFFERS_END_SHARED( FLAGS, NB_LIFO );
 113 DECLARE_BUFFERS_NEWPACKET_SHARED( FLAGS, NB_LIFO );
 114 DECLARE_BUFFERS_DELETEPACKET_SHARED( FLAGS, NB_LIFO, 1000 );
 115 DECLARE_BUFFERS_NEWPES( FLAGS, NB_LIFO );
 116 DECLARE_BUFFERS_DELETEPES( FLAGS, NB_LIFO, 1000 );
 117 DECLARE_BUFFERS_TOIO( FLAGS, DVD_LB_SIZE );
 118 DECLARE_BUFFERS_SHAREBUFFER( FLAGS );
 119
 120 /*****************************************************************************
 121  * Functions exported as capabilities. They are declared as static so that
 122  * we don't pollute the namespace too much.
 123  *****************************************************************************/
 124 void _M( input_getfunctions )( function_list_t * p_function_list )
 125 {
 126 #define input p_function_list->functions.input
 127     input.pf_probe            = DVDProbe;
 128     input.pf_init             = DVDInit;
 129     input.pf_open             = DVDOpen;
 130     input.pf_close            = DVDClose;
 131     input.pf_end              = DVDEnd;
 132     input.pf_init_bit_stream  = InitBitstream;
 133     input.pf_read             = DVDRead;
 134     input.pf_set_area         = DVDSetArea;
 135     input.pf_set_program      = DVDSetProgram;
 136     input.pf_demux            = input_DemuxPS;
 137     input.pf_new_packet       = input_NewPacket;
 138     input.pf_new_pes          = input_NewPES;
 139     input.pf_delete_packet    = input_DeletePacket;
 140     input.pf_delete_pes       = input_DeletePES;
 141     input.pf_rewind           = DVDRewind;
 142     input.pf_seek             = DVDSeek;
 143 #undef input
 144 }
 145
 146 /*
 147  * Data reading functions
 148  */
 149
 150 /*****************************************************************************
 151  * DVDProbe: verifies that the stream is a PS stream
 152  *****************************************************************************/
 153 static int DVDProbe( input_thread_t * p_input )
 154 {
 155     char * psz_name = p_input->p_source;
 156
 157     if( ( strlen(psz_name) > 4 ) && !strncasecmp( psz_name, "dvd:", 4 ) )
 158     {
 159         /* If the user specified "dvd:" then it's probably a DVD */
 160         return 0;
 161     }
 162
 163     return -1;
 164 }
 165
 166 /*****************************************************************************
 167  * DVDInit: initializes DVD structures
 168  *****************************************************************************/
 169 static void DVDInit( input_thread_t * p_input )
 170 {
 171     thread_dvd_data_t *  p_dvd;
 172     input_area_t *       p_area;
 173     int                  i_title;
 174     int                  i_chapter;
 175     int                  i;
 176
 177     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 178     if( p_dvd == NULL )
 179     {
 180         intf_ErrMsg( "dvd error: out of memory" );
 181         p_input->b_error = 1;
 182         return;
 183     }
 184
 185     p_input->p_plugin_data = (void *)p_dvd;
 186
 187     if( (p_input->p_method_data = input_BuffersInit()) == NULL )
 188     {
 189         p_input->b_error = 1;
 190         return;
 191     }
 192
 193     p_dvd->dvdhandle = (dvdcss_handle) p_input->p_handle;
 194
 195     if( dvdcss_seek( p_dvd->dvdhandle, 0, DVDCSS_NOFLAGS ) < 0 )
 196     {
 197         intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
 198         input_BuffersEnd( p_input->p_method_data );
 199         p_input->b_error = 1;
 200         return;
 201     }
 202
 203     /* We read DVD_BLOCK_READ_ONCE in each loop */
 204     p_dvd->i_block_once = DVD_BLOCK_READ_ONCE;
 205
 206     /* Ifo allocation & initialisation */
 207     if( IfoCreate( p_dvd ) < 0 )
 208     {
 209         intf_ErrMsg( "dvd error: allcation error in ifo" );
 210         free( p_dvd );
 211         input_BuffersEnd( p_input->p_method_data );
 212         p_input->b_error = 1;
 213         return;
 214     }
 215
 216     if( IfoInit( p_dvd->p_ifo ) < 0 )
 217     {
 218         intf_ErrMsg( "dvd error: fatal failure in ifo" );
 219         IfoDestroy( p_dvd->p_ifo );
 220         free( p_dvd );
 221         input_BuffersEnd( p_input->p_method_data );
 222         p_input->b_error = 1;
 223         return;
 224     }
 225
 226     /* Set stream and area data */
 227     vlc_mutex_lock( &p_input->stream.stream_lock );
 228
 229     /* Initialize ES structures */
 230     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 231
 232 #define title_inf p_dvd->p_ifo->vmg.title_inf
 233     intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
 234
 235 #define area p_input->stream.pp_areas
 236     /* We start from 1 here since the default area 0
 237      * is reserved for video_ts.vob */
 238     for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
 239     {
 240         input_AddArea( p_input );
 241
 242         /* Titles are Program Chains */
 243         area[i]->i_id = i;
 244
 245         /* Absolute start offset and size
 246          * We can only set that with vts ifo, so we do it during the
 247          * first call to DVDSetArea */
 248         area[i]->i_start = 0;
 249         area[i]->i_size = 0;
 250
 251         /* Number of chapters */
 252         area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
 253         area[i]->i_part = 1;
 254
 255         /* Number of angles */
 256         area[i]->i_angle_nb = 0;
 257         area[i]->i_angle = 1;
 258
 259         /* Offset to vts_i_0.ifo */
 260         area[i]->i_plugin_data = p_dvd->p_ifo->i_start +
 261                        title_inf.p_attr[i-1].i_start_sector;
 262     }
 263 #undef area
 264
 265     /* Get requested title - if none try the first title */
 266     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 267     if( i_title <= 0 || i_title > title_inf.i_title_nb )
 268     {
 269         i_title = 1;
 270     }
 271
 272 #undef title_inf
 273
 274     /* Get requested chapter - if none defaults to first one */
 275     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 276     if( i_chapter <= 0 )
 277     {
 278         i_chapter = 1;
 279     }
 280
 281     p_area = p_input->stream.pp_areas[i_title];
 282     p_area->i_part = i_chapter;
 283
 284     /* set title, chapter, audio and subpic */
 285     DVDSetArea( p_input, p_area );
 286
 287     vlc_mutex_unlock( &p_input->stream.stream_lock );
 288
 289     return;
 290 }
 291
 292 /*****************************************************************************
 293  * DVDOpen: open dvd
 294  *****************************************************************************/
 295 static void DVDOpen( struct input_thread_s *p_input )
 296 {
 297     dvdcss_handle dvdhandle;
 298     char * psz_parser;
 299     char * psz_device;
 300
 301     vlc_mutex_lock( &p_input->stream.stream_lock );
 302
 303     p_input->stream.i_method = INPUT_METHOD_DVD;
 304
 305     /* If we are here we can control the pace... */
 306     p_input->stream.b_pace_control = 1;
 307
 308     p_input->stream.b_seekable = 1;
 309     p_input->stream.p_selected_area->i_size = 0;
 310
 311     p_input->stream.p_selected_area->i_tell = 0;
 312
 313     vlc_mutex_unlock( &p_input->stream.stream_lock );
 314
 315     /* Parse input string : dvd:device[@rawdevice] */
 316     if( strlen( p_input->p_source ) > 4
 317          && !strncasecmp( p_input->p_source, "dvd:", 4 ) )
 318     {
 319         psz_parser = psz_device = p_input->p_source + 4;
 320     }
 321     else
 322     {
 323         psz_parser = psz_device = p_input->p_source;
 324     }
 325
 326     while( *psz_parser && *psz_parser != '@' )
 327     {
 328         psz_parser++;
 329     }
 330
 331     if( *psz_parser == '@' )
 332     {
 333         /* Found raw device */
 334         *psz_parser = '\0';
 335         psz_parser++;
 336
 337         main_PutPszVariable( "DVDCSS_RAW_DEVICE", psz_parser );
 338     }
 339
 340     intf_WarnMsg( 2, "input: dvd=%s raw=%s", psz_device, psz_parser );
 341
 342     dvdhandle = dvdcss_open( psz_device );
 343
 344     if( dvdhandle == NULL )
 345     {
 346         intf_ErrMsg( "dvd error: dvdcss can't open device" );
 347         p_input->b_error = 1;
 348         return;
 349     }
 350
 351     p_input->p_handle = (void *) dvdhandle;
 352 }
 353
 354 /*****************************************************************************
 355  * DVDClose: close dvd
 356  *****************************************************************************/
 357 static void DVDClose( struct input_thread_s *p_input )
 358 {
 359     /* Clean up libdvdcss */
 360     dvdcss_close( (dvdcss_handle) p_input->p_handle );
 361 }
 362
 363 /*****************************************************************************
 364  * DVDEnd: frees unused data
 365  *****************************************************************************/
 366 static void DVDEnd( input_thread_t * p_input )
 367 {
 368     thread_dvd_data_t *     p_dvd;
 369
 370     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 371
 372     IfoDestroy( p_dvd->p_ifo );
 373
 374     free( p_dvd );
 375
 376     input_BuffersEnd( p_input->p_method_data );
 377 }
 378
 379 /*****************************************************************************
 380  * DVDSetProgram: Does nothing, a DVD is mono-program
 381  *****************************************************************************/
 382 static int DVDSetProgram( input_thread_t * p_input,
 383             pgrm_descriptor_t * p_program )
 384 {
 385     return 0;
 386 }
 387
 388 /*****************************************************************************
 389  * DVDSetArea: initialize input data for title x, chapter y.
 390  * It should be called for each user navigation request.
 391  *****************************************************************************
 392  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 393  * Note that you have to take the lock before entering here.
 394  *****************************************************************************/
 395 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
 396 {
 397     thread_dvd_data_t *  p_dvd;
 398     es_descriptor_t *    p_es;
 399     u16                  i_id;
 400     int                  i_vts_title;
 401     int                  i_audio_nb = 0;
 402     int                  i_spu_nb = 0;
 403     int                  i_audio;
 404     int                  i_spu;
 405     int                  i;
 406
 407     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 408
 409     /* we can't use the interface slider until initilization is complete */
 410     p_input->stream.b_seekable = 0;
 411
 412     if( p_area != p_input->stream.p_selected_area )
 413     {
 414         /* Reset the Chapter position of the old title */
 415         p_input->stream.p_selected_area->i_part = 0;
 416
 417         /*
 418          *  We have to load all title information
 419          */
 420         /* Change the default area */
 421         p_input->stream.p_selected_area =
 422                     p_input->stream.pp_areas[p_area->i_id];
 423
 424         /* title number: it is not vts nb!,
 425          * it is what appears in the interface list */
 426         p_dvd->i_title = p_area->i_id;
 427         p_dvd->p_ifo->i_title = p_dvd->i_title;
 428
 429         /* set number of chapters of current title */
 430         p_dvd->i_chapter_nb = p_area->i_part_nb;
 431
 432         /* ifo vts */
 433         if( IfoTitleSet( p_dvd->p_ifo ) < 0 )
 434         {
 435             intf_ErrMsg( "dvd error: fatal error in vts ifo" );
 436             free( p_dvd );
 437             p_input->b_error = 1;
 438             return -1;
 439         }
 440
 441 #define vmg p_dvd->p_ifo->vmg
 442 #define vts p_dvd->p_ifo->vts
 443         /* title position inside the selected vts */
 444         i_vts_title = vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
 445         p_dvd->i_title_id =
 446             vts.title_inf.p_title_start[i_vts_title-1].i_title_id;
 447
 448         intf_WarnMsg( 3, "dvd: title %d vts_title %d pgc %d",
 449                       p_dvd->i_title, i_vts_title, p_dvd->i_title_id );
 450
 451         /*
 452          * Angle management
 453          */
 454         p_dvd->i_angle_nb = vmg.title_inf.p_attr[p_dvd->i_title-1].i_angle_nb;
 455         p_dvd->i_angle = main_GetIntVariable( INPUT_ANGLE_VAR, 1 );
 456         if( ( p_dvd->i_angle <= 0 ) || p_dvd->i_angle > p_dvd->i_angle_nb )
 457         {
 458             p_dvd->i_angle = 1;
 459         }
 460
 461         /*
 462          * Set selected title start and size
 463          */
 464
 465         /* title set offset XXX: convert to block values */
 466         p_dvd->i_title_start =
 467             vts.i_pos + vts.manager_inf.i_title_vob_start_sector;
 468
 469         /* last video cell */
 470         p_dvd->i_cell = 0;
 471         p_dvd->i_prg_cell = -1 +
 472             vts.title_unit.p_title[p_dvd->i_title_id-1].title.i_cell_nb;
 473
 474         if( DVDFindCell( p_dvd ) < 0 )
 475         {
 476             intf_ErrMsg( "dvd error: can't find title end" );
 477             p_input->b_error = 1;
 478             return -1;
 479         }
 480
 481         /* temporary hack to fix size in some dvds */
 482         if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
 483         {
 484             p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
 485         }
 486
 487         p_dvd->i_sector = 0;
 488         p_dvd->i_size = vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector;
 489
 490         if( DVDChapterSelect( p_dvd, 1 ) < 0 )
 491         {
 492             intf_ErrMsg( "dvd error: can't find first chapter" );
 493             p_input->b_error = 1;
 494             return -1;
 495         }
 496
 497         /* Force libdvdcss to check its title key.
 498          * It is only useful for title cracking method. Methods using the
 499          * decrypted disc key are fast enough to check the key at each seek */
 500
 501         if( dvdcss_seek( p_dvd->dvdhandle, p_dvd->i_start,
 502                             DVDCSS_SEEK_KEY ) < 0 )
 503         {
 504             intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
 505             return -1;
 506         }
 507
 508         p_dvd->i_size -= p_dvd->i_sector + 1;
 509
 510         IfoPrintTitle( p_dvd );
 511
 512         /* Area definition */
 513         p_input->stream.p_selected_area->i_start = LB2OFF( p_dvd->i_start );
 514         p_input->stream.p_selected_area->i_size = LB2OFF( p_dvd->i_size );
 515         p_input->stream.p_selected_area->i_angle_nb = p_dvd->i_angle_nb;
 516         p_input->stream.p_selected_area->i_angle = p_dvd->i_angle;
 517
 518 #if 0
 519         /* start at the beginning of the title */
 520         /* FIXME: create a conf option to select whether to restart
 521          * title or not */
 522         p_input->stream.p_selected_area->i_tell = 0;
 523         p_input->stream.p_selected_area->i_part = 1;
 524 #endif
 525
 526         /*
 527          * Destroy obsolete ES by reinitializing program 0
 528          * and find all ES in title with ifo data
 529          */
 530         if( p_input->stream.pp_programs != NULL )
 531         {
 532             /* We don't use input_EndStream here since
 533              * we keep area structures */
 534
 535             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 536             {
 537                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 538             }
 539
 540             free( p_input->stream.pp_selected_es );
 541             input_DelProgram( p_input, p_input->stream.p_selected_program );
 542
 543             p_input->stream.pp_selected_es = NULL;
 544             p_input->stream.i_selected_es_number = 0;
 545         }
 546
 547         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 548         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 549
 550         /* No PSM to read in DVD mode, we already have all information */
 551         p_input->stream.p_selected_program->b_is_ok = 1;
 552
 553         p_es = NULL;
 554
 555         /* ES 0 -> video MPEG2 */
 556         IfoPrintVideo( p_dvd );
 557
 558         p_es = input_AddES( p_input, p_input->stream.p_selected_program,
 559                 0xe0, 0 );
 560         p_es->i_stream_id = 0xe0;
 561         p_es->i_type = MPEG2_VIDEO_ES;
 562         p_es->i_cat = VIDEO_ES;
 563         if( p_main->b_video )
 564         {
 565             input_SelectES( p_input, p_es );
 566         }
 567
 568 #define audio_status \
 569     vts.title_unit.p_title[p_dvd->i_title_id-1].title.pi_audio_status[i-1]
 570         /* Audio ES, in the order they appear in .ifo */
 571         for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
 572         {
 573             IfoPrintAudio( p_dvd, i );
 574
 575             /* audio channel is active if first byte is 0x80 */
 576             if( audio_status.i_available )
 577             {
 578                 i_audio_nb++;
 579
 580                 switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
 581                 {
 582                 case 0x00:              /* AC3 */
 583                     i_id = ( ( 0x80 + audio_status.i_position ) << 8 ) | 0xbd;
 584                     p_es = input_AddES( p_input,
 585                                p_input->stream.p_selected_program, i_id, 0 );
 586                     p_es->i_stream_id = 0xbd;
 587                     p_es->i_type = AC3_AUDIO_ES;
 588                     p_es->b_audio = 1;
 589                     p_es->i_cat = AUDIO_ES;
 590                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 591                         vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 592                     strcat( p_es->psz_desc, " (ac3)" );
 593
 594                     break;
 595                 case 0x02:
 596                 case 0x03:              /* MPEG audio */
 597                     i_id = 0xc0 + audio_status.i_position;
 598                     p_es = input_AddES( p_input,
 599                                     p_input->stream.p_selected_program, i_id
 600                                     , 0 );
 601                     p_es->i_stream_id = i_id;
 602                     p_es->i_type = MPEG2_AUDIO_ES;
 603                     p_es->b_audio = 1;
 604                     p_es->i_cat = AUDIO_ES;
 605                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 606                         vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 607                     strcat( p_es->psz_desc, " (mpeg)" );
 608
 609                     break;
 610                 case 0x04:              /* LPCM */
 611
 612                     i_id = ( ( 0xa0 + audio_status.i_position ) << 8 ) | 0xbd;
 613                     p_es = input_AddES( p_input,
 614                                     p_input->stream.p_selected_program,
 615                                     i_id, 0 );
 616                     p_es->i_stream_id = 0xbd;
 617                     p_es->i_type = LPCM_AUDIO_ES;
 618                     p_es->b_audio = 1;
 619                     p_es->i_cat = AUDIO_ES;
 620                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 621                         vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
 622                     strcat( p_es->psz_desc, " (lpcm)" );
 623
 624                     break;
 625                 case 0x06:              /* DTS */
 626                     i_id = ( ( 0x88 + audio_status.i_position ) << 8 ) | 0xbd;
 627                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 628                                  "(0x%x)", i_id );
 629                     break;
 630                 default:
 631                     i_id = 0;
 632                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 633                              vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
 634                 }
 635             }
 636         }
 637 #undef audio_status
 638 #define spu_status \
 639     vts.title_unit.p_title[p_dvd->i_title_id-1].title.pi_spu_status[i-1]
 640
 641         /* Sub Picture ES */
 642
 643         for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
 644         {
 645             IfoPrintSpu( p_dvd, i );
 646
 647             if( spu_status.i_available )
 648             {
 649                 i_spu_nb++;
 650
 651                 /*  there are several streams for one spu */
 652                 if(  vts.manager_inf.video_attr.i_ratio )
 653                 {
 654                     /* 16:9 */
 655                     switch( vts.manager_inf.video_attr.i_perm_displ )
 656                     {
 657                     case 1:
 658                         i_id = ( ( 0x20 + spu_status.i_position_pan ) << 8 )
 659                                | 0xbd;
 660                         break;
 661                     case 2:
 662                         i_id = ( ( 0x20 + spu_status.i_position_letter ) << 8 )
 663                                | 0xbd;
 664                         break;
 665                     default:
 666                         i_id = ( ( 0x20 + spu_status.i_position_wide ) << 8 )
 667                                | 0xbd;
 668                         break;
 669                     }
 670                 }
 671                 else
 672                 {
 673                     /* 4:3 */
 674                     i_id = ( ( 0x20 + spu_status.i_position_43 ) << 8 )
 675                            | 0xbd;
 676                 }
 677                 p_es = input_AddES( p_input,
 678                                     p_input->stream.p_selected_program,
 679                                     i_id, 0 );
 680                 p_es->i_stream_id = 0xbd;
 681                 p_es->i_type = DVD_SPU_ES;
 682                 p_es->i_cat = SPU_ES;
 683                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 684                     vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
 685             }
 686         }
 687 #undef spu_status
 688         if( p_main->b_audio )
 689         {
 690             /* For audio: first one if none or a not existing one specified */
 691             i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 692             if( i_audio < 0 || i_audio > i_audio_nb )
 693             {
 694                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 695                 i_audio = 1;
 696             }
 697             if( i_audio > 0 && i_audio_nb > 0 )
 698             {
 699                 if( main_GetIntVariable( AOUT_SPDIF_VAR, 0 ) ||
 700                     ( main_GetIntVariable( INPUT_AUDIO_VAR, 0 ) ==
 701                       REQUESTED_AC3 ) )
 702                 {
 703                     int     i_ac3 = i_audio;
 704                     while( ( p_input->stream.pp_es[i_ac3]->i_type !=
 705                              AC3_AUDIO_ES ) && ( i_ac3 <=
 706                              vts.manager_inf.i_audio_nb ) )
 707                     {
 708                         i_ac3++;
 709                     }
 710                     if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
 711                     {
 712                         input_SelectES( p_input,
 713                                         p_input->stream.pp_es[i_ac3] );
 714                     }
 715                 }
 716                 else
 717                 {
 718                     input_SelectES( p_input,
 719                                     p_input->stream.pp_es[i_audio] );
 720                 }
 721             }
 722         }
 723
 724         if( p_main->b_video )
 725         {
 726             /* for spu, default is none */
 727             i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 728             if( i_spu < 0 || i_spu > i_spu_nb )
 729             {
 730                 main_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
 731                 i_spu = 0;
 732             }
 733             if( i_spu > 0 && i_spu_nb > 0 )
 734             {
 735                 i_spu += vts.manager_inf.i_audio_nb;
 736                 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 737             }
 738         }
 739     } /* i_title >= 0 */
 740     else
 741     {
 742         p_area = p_input->stream.p_selected_area;
 743     }
 744 #undef vts
 745 #undef vmg
 746
 747     /*
 748      * Chapter selection
 749      */
 750
 751     if( p_area->i_part != p_dvd->i_chapter )
 752     {
 753         if( ( p_area->i_part > 0 ) &&
 754             ( p_area->i_part <= p_area->i_part_nb ))
 755         {
 756             if( DVDChapterSelect( p_dvd, p_area->i_part ) < 0 )
 757             {
 758                 intf_ErrMsg( "dvd error: can't set chapter in area" );
 759                 p_input->b_error = 1;
 760                 return -1;
 761             }
 762
 763             p_input->stream.p_selected_area->i_tell =
 764                                    LB2OFF( p_dvd->i_start ) - p_area->i_start;
 765             p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 766
 767             intf_WarnMsg( 4, "dvd info: chapter %d start at: %lld",
 768                                         p_area->i_part, p_area->i_tell );
 769         }
 770         else
 771         {
 772             p_area->i_part = 1;
 773             p_dvd->i_chapter = 1;
 774         }
 775     }
 776
 777 #define title \
 778     p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_title_id-1].title
 779     if( p_area->i_angle != p_dvd->i_angle )
 780     {
 781         if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
 782         {
 783             if( ( p_area->i_angle - p_dvd->i_angle ) < 0 )
 784             {
 785                 p_dvd->i_cell = 0;
 786             }
 787             p_dvd->i_prg_cell += ( p_area->i_angle - p_dvd->i_angle );
 788             p_dvd->i_angle = p_area->i_angle;
 789
 790             DVDFindSector( p_dvd );
 791             p_dvd->i_cell += p_dvd->i_angle_cell;
 792         }
 793         else
 794         {
 795             p_dvd->i_angle = p_area->i_angle;
 796         }
 797
 798         intf_WarnMsg( 3, "dvd info: angle %d selected", p_area->i_angle );
 799     }
 800
 801     /* warn interface that something has changed */
 802     p_input->stream.b_seekable = 1;
 803     p_input->stream.b_changed = 1;
 804
 805     return 0;
 806 }
 807
 808
 809 /*****************************************************************************
 810  * DVDRead: reads data packets.
 811  *****************************************************************************
 812  * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
 813  * packets.
 814  *****************************************************************************/
 815 static int DVDRead( input_thread_t * p_input,
 816                     data_packet_t ** pp_data )
 817 {
 818     thread_dvd_data_t *     p_dvd;
 819     struct iovec            p_vec[DVD_BLOCK_READ_ONCE];
 820     u8 *                    pi_cur;
 821     int                     i_block_once;
 822     int                     i_packet_size;
 823     int                     i_iovec;
 824     int                     i_packet;
 825     int                     i_pos;
 826     int                     i_read_blocks;
 827     int                     i_sector;
 828     boolean_t               b_eoc;
 829     data_packet_t *         p_data;
 830
 831     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 832
 833     *pp_data = NULL;
 834
 835     b_eoc = 0;
 836     i_sector = p_dvd->i_title_start + p_dvd->i_sector;
 837     i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 838
 839
 840     /* Get the position of the next cell if we're at cell end */
 841     if( i_block_once <= 0 )
 842     {
 843         int     i_angle;
 844
 845         p_dvd->i_cell++;
 846         p_dvd->i_angle_cell++;
 847
 848         /* Find cell index in adress map */
 849         if( DVDFindSector( p_dvd ) < 0 )
 850         {
 851             intf_ErrMsg( "dvd error: can't find next cell" );
 852             return 1;
 853         }
 854
 855         /* Position the fd pointer on the right address */
 856         if( ( i_sector = dvdcss_seek( p_dvd->dvdhandle,
 857                                       p_dvd->i_title_start + p_dvd->i_sector,
 858                                       DVDCSS_SEEK_MPEG ) ) < 0 )
 859         {
 860             intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
 861             return -1;
 862         }
 863
 864         /* update chapter : it will be easier when we have navigation
 865          * ES support */
 866         if( p_dvd->i_chapter < ( p_dvd->i_chapter_nb - 1 ) )
 867         {
 868             if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
 869             {
 870                 i_angle = p_dvd->i_angle - 1;
 871             }
 872             else
 873             {
 874                 i_angle = 0;
 875             }
 876             if( title.chapter_map.pi_start_cell[p_dvd->i_chapter] <=
 877                 ( p_dvd->i_prg_cell - i_angle + 1 ) )
 878             {
 879                 p_dvd->i_chapter++;
 880                 b_eoc = 1;
 881             }
 882         }
 883
 884         i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
 885     }
 886
 887     /* The number of blocks read is the max between the requested
 888      * value and the leaving block in the cell */
 889     if( i_block_once > p_dvd->i_block_once )
 890     {
 891         i_block_once = p_dvd->i_block_once;
 892     }
 893 /*
 894 intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
 895 */
 896
 897     /* Get iovecs */
 898     *pp_data = p_data = input_BuffersToIO( p_input->p_method_data, p_vec,
 899                                            DVD_BLOCK_READ_ONCE );
 900
 901     if ( p_data == NULL )
 902     {
 903         return( -1 );
 904     }
 905
 906     /* Reads from DVD */
 907     i_read_blocks = dvdcss_readv( p_dvd->dvdhandle, p_vec,
 908                                   i_block_once, DVDCSS_READ_DECRYPT );
 909
 910     /* Update global position */
 911     p_dvd->i_sector += i_read_blocks;
 912
 913     i_packet = 0;
 914
 915     /* Read headers to compute payload length */
 916     for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
 917     {
 918         data_packet_t * p_current = p_data;
 919         i_pos = 0;
 920
 921         while( i_pos < DVD_LB_SIZE )
 922         {
 923             pi_cur = (u8*)p_vec[i_iovec].iov_base + i_pos;
 924
 925             /* Default header */
 926             if( U32_AT( pi_cur ) != 0x1BA )
 927             {
 928                 /* That's the case for all packets, except pack header. */
 929                 i_packet_size = U16_AT( pi_cur + 4 );
 930             }
 931             else
 932             {
 933                 /* MPEG-2 Pack header. */
 934                 i_packet_size = 8;
 935             }
 936
 937             if( i_pos != 0 )
 938             {
 939                 *pp_data = input_ShareBuffer( p_input->p_method_data,
 940                                               p_current );
 941             }
 942             else
 943             {
 944                 *pp_data = p_data;
 945                 p_data = p_data->p_next;
 946             }
 947
 948             (*pp_data)->p_payload_start = (*pp_data)->p_demux_start =
 949                     (*pp_data)->p_demux_start + i_pos;
 950
 951             (*pp_data)->p_payload_end =
 952                     (*pp_data)->p_payload_start + i_packet_size + 6;
 953
 954             i_packet++;
 955             i_pos += i_packet_size + 6;
 956             pp_data = &(*pp_data)->p_next;
 957         }
 958     }
 959
 960     p_input->pf_delete_packet( p_input->p_method_data, p_data );
 961     *pp_data = NULL;
 962
 963     vlc_mutex_lock( &p_input->stream.stream_lock );
 964
 965     p_input->stream.p_selected_area->i_tell =
 966         LB2OFF( i_sector + i_read_blocks ) -
 967         p_input->stream.p_selected_area->i_start;
 968     if( b_eoc )
 969     {
 970         /* We modify i_part only at end of chapter not to erase
 971          * some modification from the interface */
 972         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 973     }
 974
 975     if( p_input->stream.p_selected_area->i_tell
 976             >= p_input->stream.p_selected_area->i_size )
 977     {
 978         if( ( p_dvd->i_title + 1 ) >= p_input->stream.i_area_nb )
 979         {
 980             /* EOF */
 981             vlc_mutex_unlock( &p_input->stream.stream_lock );
 982             return 0;
 983         }
 984
 985         /* EOT */
 986         intf_WarnMsg( 4, "dvd info: new title" );
 987         p_dvd->i_title++;
 988         DVDSetArea( p_input, p_input->stream.pp_areas[p_dvd->i_title] );
 989         vlc_mutex_unlock( &p_input->stream.stream_lock );
 990         return( i_packet );
 991     }
 992
 993     vlc_mutex_unlock( &p_input->stream.stream_lock );
 994
 995     if( i_read_blocks != i_block_once )
 996     {
 997         return -1;
 998     }
 999
1000     return( i_packet );
1001 }
1002
1003 /*****************************************************************************
1004  * DVDRewind : reads a stream backward
1005  *****************************************************************************/
1006 static int DVDRewind( input_thread_t * p_input )
1007 {
1008     return( -1 );
1009 }
1010
1011 /*****************************************************************************
1012  * DVDSeek : Goes to a given position on the stream.
1013  *****************************************************************************
1014  * This one is used by the input and translate chronological position from
1015  * input to logical position on the device.
1016  * The lock should be taken before calling this function.
1017  *****************************************************************************/
1018 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1019 {
1020     thread_dvd_data_t *     p_dvd;
1021     int                     i_block;
1022     int                     i_prg_cell;
1023     int                     i_cell;
1024     int                     i_chapter;
1025     int                     i_angle;
1026
1027     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1028
1029     /* we have to take care of offset of beginning of title */
1030     p_dvd->i_sector = OFF2LB(i_off + p_input->stream.p_selected_area->i_start)
1031                        - p_dvd->i_title_start;
1032
1033     i_prg_cell = 0;
1034     i_chapter = 0;
1035
1036     /* parse vobu address map to find program cell */
1037     while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector  )
1038     {
1039         i_prg_cell++;
1040     }
1041
1042     p_dvd->i_prg_cell = i_prg_cell;
1043
1044     if( DVDChooseAngle( p_dvd ) < 0 )
1045     {
1046         p_input->b_error = 1;
1047         return;
1048     }
1049
1050     p_dvd->i_cell = 0;
1051
1052     /* Find first title cell which is inside program cell */
1053     if( DVDFindCell( p_dvd ) < 0 )
1054     {
1055         /* no following cell : we're at eof */
1056         intf_ErrMsg( "dvd error: cell seeking failed" );
1057         p_input->b_error = 1;
1058         return;
1059     }
1060
1061     i_cell = p_dvd->i_cell;
1062
1063 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1064     /* parse cell address map to find title cell containing sector */
1065     while( cell.i_end_sector < p_dvd->i_sector )
1066     {
1067         i_cell++;
1068     }
1069
1070     p_dvd->i_cell = i_cell;
1071
1072     /* if we're inside a multi-angle zone, we have to choose i_sector
1073      * in the current angle ; we can't do it all the time since cells
1074      * can be very wide out of such zones */
1075     if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
1076     {
1077         p_dvd->i_sector = MAX(
1078                 cell.i_start_sector,
1079                 title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
1080     }
1081
1082     p_dvd->i_end_sector = MIN(
1083             cell.i_end_sector,
1084             title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1085 #undef cell
1086     /* update chapter */
1087     if( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
1088     {
1089         i_angle = p_dvd->i_angle - 1;
1090     }
1091     else
1092     {
1093         i_angle = 0;
1094     }
1095     if( p_dvd->i_chapter_nb > 1 )
1096     {
1097         while( ( title.chapter_map.pi_start_cell[i_chapter] <=
1098                     ( p_dvd->i_prg_cell - i_angle + 1 ) ) &&
1099                ( i_chapter < ( p_dvd->i_chapter_nb - 1 ) ) )
1100         {
1101             i_chapter++;
1102         }
1103     }
1104     else
1105     {
1106         i_chapter = 1;
1107     }
1108
1109     p_dvd->i_chapter = i_chapter;
1110     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1111
1112     if( ( i_block = dvdcss_seek( p_dvd->dvdhandle,
1113                                  p_dvd->i_title_start + p_dvd->i_sector,
1114                                  DVDCSS_SEEK_MPEG ) ) < 0 )
1115     {
1116         intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
1117         p_input->b_error = 1;
1118         return;
1119     }
1120
1121     p_input->stream.p_selected_area->i_tell =
1122         LB2OFF ( i_block ) - p_input->stream.p_selected_area->i_start;
1123
1124     intf_WarnMsg( 7, "Program Cell: %d Cell: %d Chapter: %d",
1125                      p_dvd->i_prg_cell, p_dvd->i_cell, p_dvd->i_chapter );
1126
1127
1128     return;
1129 }
1130
1131 #define cell  p_dvd->p_ifo->vts.cell_inf
1132
1133 /*****************************************************************************
1134  * DVDFindCell: adjust the title cell index with the program cell
1135  *****************************************************************************/
1136 static int DVDFindCell( thread_dvd_data_t * p_dvd )
1137 {
1138     int                 i_cell;
1139     int                 i_index;
1140
1141     i_cell = p_dvd->i_cell;
1142     i_index = p_dvd->i_prg_cell;
1143
1144     if( i_cell >= cell.i_cell_nb )
1145     {
1146         return -1;
1147     }
1148
1149     while( ( ( title.p_cell_pos[i_index].i_vob_id !=
1150                    cell.p_cell_map[i_cell].i_vob_id ) ||
1151       ( title.p_cell_pos[i_index].i_cell_id !=
1152                    cell.p_cell_map[i_cell].i_cell_id ) ) &&
1153            ( i_cell < cell.i_cell_nb - 1 ) )
1154     {
1155         i_cell++;
1156     }
1157
1158 /*
1159 intf_WarnMsg( 12, "FindCell: i_cell %d i_index %d found %d nb %d",
1160                     p_dvd->i_cell,
1161                     p_dvd->i_prg_cell,
1162                     i_cell,
1163                     cell.i_cell_nb );
1164 */
1165
1166     p_dvd->i_cell = i_cell;
1167
1168     return 0;
1169 }
1170
1171 #undef cell
1172
1173 /*****************************************************************************
1174  * DVDFindSector: find cell index in adress map from index in
1175  * information table program map and give corresponding sectors.
1176  *****************************************************************************/
1177 static int DVDFindSector( thread_dvd_data_t * p_dvd )
1178 {
1179
1180     if( p_dvd->i_sector > title.p_cell_play[p_dvd->i_prg_cell].i_end_sector )
1181     {
1182         p_dvd->i_prg_cell++;
1183
1184         if( DVDChooseAngle( p_dvd ) < 0 )
1185         {
1186             return -1;
1187         }
1188     }
1189
1190     if( DVDFindCell( p_dvd ) < 0 )
1191     {
1192         intf_ErrMsg( "dvd error: can't find sector" );
1193         return -1;
1194     }
1195
1196     /* Find start and end sectors of new cell */
1197 #if 1
1198     p_dvd->i_sector = MAX(
1199          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
1200          title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
1201     p_dvd->i_end_sector = MIN(
1202          p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
1203          title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1204 #else
1205     p_dvd->i_sector = title.p_cell_play[p_dvd->i_prg_cell].i_start_sector;
1206     p_dvd->i_end_sector = title.p_cell_play[p_dvd->i_prg_cell].i_end_sector;
1207 #endif
1208
1209 /*
1210     intf_WarnMsg( 12, "cell: %d sector1: 0x%x end1: 0x%x\n"
1211                    "index: %d sector2: 0x%x end2: 0x%x\n"
1212                    "category: 0x%x ilvu end: 0x%x vobu start 0x%x",
1213         p_dvd->i_cell,
1214         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
1215         p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
1216         p_dvd->i_prg_cell,
1217         title.p_cell_play[p_dvd->i_prg_cell].i_start_sector,
1218         title.p_cell_play[p_dvd->i_prg_cell].i_end_sector,
1219         title.p_cell_play[p_dvd->i_prg_cell].i_category,
1220         title.p_cell_play[p_dvd->i_prg_cell].i_first_ilvu_vobu_esector,
1221         title.p_cell_play[p_dvd->i_prg_cell].i_last_vobu_start_sector );
1222 */
1223
1224     return 0;
1225 }
1226
1227 /*****************************************************************************
1228  * DVDChapterSelect: find the cell corresponding to requested chapter
1229  *****************************************************************************/
1230 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
1231 {
1232
1233     /* Find cell index in Program chain for current chapter */
1234     p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
1235     p_dvd->i_cell = 0;
1236     p_dvd->i_sector = 0;
1237
1238     DVDChooseAngle( p_dvd );
1239
1240     /* Search for cell_index in cell adress_table and initialize
1241      * start sector */
1242     if( DVDFindSector( p_dvd ) < 0 )
1243     {
1244         intf_ErrMsg( "dvd error: can't select chapter" );
1245         return -1;
1246     }
1247
1248     /* start is : beginning of vts vobs + offset to vob x */
1249     p_dvd->i_start = p_dvd->i_title_start + p_dvd->i_sector;
1250
1251     /* Position the fd pointer on the right address */
1252     if( ( p_dvd->i_start = dvdcss_seek( p_dvd->dvdhandle,
1253                                         p_dvd->i_start,
1254                                         DVDCSS_SEEK_MPEG ) ) < 0 )
1255     {
1256         intf_ErrMsg( "dvd error: %s", dvdcss_error( p_dvd->dvdhandle ) );
1257         return -1;
1258     }
1259
1260     p_dvd->i_chapter = i_chapter;
1261     return 0;
1262 }
1263
1264 /*****************************************************************************
1265  * DVDChooseAngle: select the cell corresponding to the selected angle
1266  *****************************************************************************/
1267 static int DVDChooseAngle( thread_dvd_data_t * p_dvd )
1268 {
1269     /* basic handling of angles */
1270     switch( ( ( title.p_cell_play[p_dvd->i_prg_cell].i_category & 0xf000 )
1271                     >> 12 ) )
1272     {
1273         /* we enter a muli-angle section */
1274         case 0x5:
1275             p_dvd->i_prg_cell += p_dvd->i_angle - 1;
1276             p_dvd->i_angle_cell = 0;
1277             break;
1278         /* we exit a multi-angle section */
1279         case 0x9:
1280         case 0xd:
1281             p_dvd->i_prg_cell += p_dvd->i_angle_nb - p_dvd->i_angle;
1282             break;
1283     }
1284
1285     return 0;
1286 }
1287
1288 #undef title