git.sesse.net Git - vlc/blob - modules/access/dvdread.c

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_input.h>
  36 #include <vlc_access.h>
  37 #include <vlc_charset.h>
  38 #include <vlc_interface.h>
  39 #include <vlc_dialog.h>
  40
  41 #include <vlc_iso_lang.h>
  42
  43 #include "../demux/ps.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #   include <unistd.h>
  47 #endif
  48
  49 #include <sys/types.h>
  50
  51 #include <dvdread/dvd_reader.h>
  52 #include <dvdread/ifo_types.h>
  53 #include <dvdread/ifo_read.h>
  54 #include <dvdread/nav_read.h>
  55 #include <dvdread/nav_print.h>
  56
  57 #include <assert.h>
  58
  59 /*****************************************************************************
  60  * Module descriptor
  61  *****************************************************************************/
  62 #define ANGLE_TEXT N_("DVD angle")
  63 #define ANGLE_LONGTEXT N_( \
  64     "Default DVD angle." )
  65
  66 #define CACHING_TEXT N_("Caching value in ms")
  67 #define CACHING_LONGTEXT N_( \
  68     "Caching value for DVDs. " \
  69     "This value should be set in milliseconds." )
  70
  71 static int  Open ( vlc_object_t * );
  72 static void Close( vlc_object_t * );
  73
  74 vlc_module_begin ()
  75     set_shortname( N_("DVD without menus") )
  76     set_description( N_("DVDRead Input (no menu support)") )
  77     set_category( CAT_INPUT )
  78     set_subcategory( SUBCAT_INPUT_ACCESS )
  79     add_integer( "dvdread-angle", 1, ANGLE_TEXT,
  80         ANGLE_LONGTEXT, false )
  81     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000,
  82         CACHING_TEXT, CACHING_LONGTEXT, true )
  83     add_obsolete_string( "dvdread-css-method" ) /* obsolete since 1.1.0 */
  84     set_capability( "access_demux", 0 )
  85     add_shortcut( "dvd", "dvdread", "dvdsimple" )
  86     set_callbacks( Open, Close )
  87 vlc_module_end ()
  88
  89 /* how many blocks DVDRead will read in each loop */
  90 #define DVD_BLOCK_READ_ONCE 4
  91
  92 /*****************************************************************************
  93  * Local prototypes
  94  *****************************************************************************/
  95
  96 struct demux_sys_t
  97 {
  98     /* DVDRead state */
  99     dvd_reader_t *p_dvdread;
 100     dvd_file_t   *p_title;
 101
 102     ifo_handle_t *p_vmg_file;
 103     ifo_handle_t *p_vts_file;
 104
 105     int i_title;
 106     int i_chapter, i_chapters;
 107     int i_angle, i_angles;
 108
 109     tt_srpt_t    *p_tt_srpt;
 110     pgc_t        *p_cur_pgc;
 111     dsi_t        dsi_pack;
 112     int          i_ttn;
 113
 114     int i_pack_len;
 115     int i_cur_block;
 116     int i_next_vobu;
 117
 118     int i_mux_rate;
 119
 120     /* Current title start/end blocks */
 121     int i_title_start_block;
 122     int i_title_end_block;
 123     int i_title_blocks;
 124     int i_title_offset;
 125     mtime_t i_title_cur_time;
 126
 127     int i_title_start_cell;
 128     int i_title_end_cell;
 129     int i_cur_cell;
 130     int i_next_cell;
 131     mtime_t i_cell_cur_time;
 132     mtime_t i_cell_duration;
 133
 134     /* Track */
 135     ps_track_t    tk[PS_TK_COUNT];
 136
 137     int           i_titles;
 138     input_title_t **titles;
 139
 140     /* Video */
 141     int i_sar_num;
 142     int i_sar_den;
 143
 144     /* SPU */
 145     uint32_t clut[16];
 146 };
 147
 148 static int Control   ( demux_t *, int, va_list );
 149 static int Demux     ( demux_t * );
 150 static int DemuxBlock( demux_t *, const uint8_t *, int );
 151
 152 static void DemuxTitles( demux_t *, int * );
 153 static void ESNew( demux_t *, int, int );
 154
 155 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 156 static void DvdReadSeek     ( demux_t *, int );
 157 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 158 static void DvdReadFindCell ( demux_t * );
 159
 160 /*****************************************************************************
 161  * Open:
 162  *****************************************************************************/
 163 static int Open( vlc_object_t *p_this )
 164 {
 165     demux_t      *p_demux = (demux_t*)p_this;
 166     demux_sys_t  *p_sys;
 167     char         *psz_file;
 168     ifo_handle_t *p_vmg_file;
 169
 170     if( !p_demux->psz_file || !*p_demux->psz_file )
 171     {
 172         /* Only when selected */
 173         if( !p_demux->psz_access || !*p_demux->psz_access )
 174             return VLC_EGENERIC;
 175
 176         psz_file = var_InheritString( p_this, "dvd" );
 177     }
 178     else
 179         psz_file = strdup( p_demux->psz_file );
 180
 181 #if defined( WIN32 ) || defined( __OS2__ )
 182     if( psz_file != NULL )
 183     {
 184         size_t flen = strlen( psz_file );
 185         if( flen > 0 && psz_file[flen - 1] == '\\' )
 186             psz_file[flen - 1] = '\0';
 187     }
 188     else
 189         psz_file = strdup("");
 190 #endif
 191     if( unlikely(psz_file == NULL) )
 192         return VLC_EGENERIC;
 193
 194     /* Open dvdread */
 195     const char *psz_path = ToLocale( psz_file );
 196     dvd_reader_t *p_dvdread = DVDOpen( psz_path );
 197
 198     LocaleFree( psz_path );
 199     if( p_dvdread == NULL )
 200     {
 201         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_file );
 202         dialog_Fatal( p_demux, _("Playback failure"),
 203                       _("DVDRead could not open the disc \"%s\"."), psz_file );
 204         free( psz_file );
 205         return VLC_EGENERIC;
 206     }
 207     free( psz_file );
 208
 209     /* Ifo allocation & initialisation */
 210     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 211     {
 212         msg_Warn( p_demux, "cannot open VMG info" );
 213         return VLC_EGENERIC;
 214     }
 215     msg_Dbg( p_demux, "VMG opened" );
 216
 217     /* Fill p_demux field */
 218     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 219
 220     ps_track_init( p_sys->tk );
 221     p_sys->i_sar_num = 0;
 222     p_sys->i_sar_den = 0;
 223     p_sys->i_title_cur_time = (mtime_t) 0;
 224     p_sys->i_cell_cur_time = (mtime_t) 0;
 225     p_sys->i_cell_duration = (mtime_t) 0;
 226
 227     p_sys->p_dvdread = p_dvdread;
 228     p_sys->p_vmg_file = p_vmg_file;
 229     p_sys->p_title = NULL;
 230     p_sys->p_vts_file = NULL;
 231
 232     p_sys->i_title = p_sys->i_chapter = -1;
 233     p_sys->i_mux_rate = 0;
 234
 235     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 236     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 237
 238     DemuxTitles( p_demux, &p_sys->i_angle );
 239     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 240     {
 241         Close( p_this );
 242         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 243                  p_sys->i_angle );
 244         return VLC_EGENERIC;
 245     }
 246
 247     /* Update default_pts to a suitable value for dvdread access */
 248     var_Create( p_demux, "dvdread-caching",
 249                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 250
 251     return VLC_SUCCESS;
 252 }
 253
 254 /*****************************************************************************
 255  * Close:
 256  *****************************************************************************/
 257 static void Close( vlc_object_t *p_this )
 258 {
 259     demux_t     *p_demux = (demux_t*)p_this;
 260     demux_sys_t *p_sys = p_demux->p_sys;
 261     int i;
 262
 263     for( i = 0; i < PS_TK_COUNT; i++ )
 264     {
 265         ps_track_t *tk = &p_sys->tk[i];
 266         if( tk->b_seen )
 267         {
 268             es_format_Clean( &tk->fmt );
 269             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 270         }
 271     }
 272
 273     /* Free the array of titles */
 274     for( int i = 0; i < p_sys->i_titles; i++ )
 275         vlc_input_title_Delete( p_sys->titles[i] );
 276     TAB_CLEAN( p_sys->i_titles, p_sys->titles );
 277
 278     /* Close libdvdread */
 279     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 280     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 281     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 282     DVDClose( p_sys->p_dvdread );
 283
 284     free( p_sys );
 285 }
 286
 287 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 288 {
 289 /* Macro to convert Binary Coded Decimal to Decimal */
 290 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 291
 292     double f_fps, f_ms;
 293     int64_t i_micro_second = 0;
 294
 295     if (still_time == 0 || still_time == 0xFF)
 296     {
 297         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 298         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 299         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 300
 301         switch((dtime->frame_u & 0xc0) >> 6)
 302         {
 303         case 1:
 304             f_fps = 25.0;
 305             break;
 306         case 3:
 307             f_fps = 29.97;
 308             break;
 309         default:
 310             f_fps = 2500.0;
 311             break;
 312         }
 313         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 314         i_micro_second += (int64_t)(f_ms * 1000.0);
 315     }
 316     else
 317     {
 318         i_micro_second = still_time;
 319         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 320     }
 321
 322     return i_micro_second;
 323 }
 324
 325 /*****************************************************************************
 326  * Control:
 327  *****************************************************************************/
 328 static int Control( demux_t *p_demux, int i_query, va_list args )
 329 {
 330     demux_sys_t *p_sys = p_demux->p_sys;
 331     double f, *pf;
 332     bool *pb;
 333     int64_t *pi64;
 334     input_title_t ***ppp_title;
 335     int *pi_int;
 336     int i;
 337
 338     switch( i_query )
 339     {
 340         case DEMUX_GET_POSITION:
 341         {
 342             pf = (double*) va_arg( args, double* );
 343
 344             if( p_sys->i_title_blocks > 0 )
 345                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 346             else
 347                 *pf = 0.0;
 348
 349             return VLC_SUCCESS;
 350         }
 351         case DEMUX_SET_POSITION:
 352         {
 353             f = (double)va_arg( args, double );
 354
 355             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 356
 357             return VLC_SUCCESS;
 358         }
 359         case DEMUX_GET_TIME:
 360             pi64 = (int64_t*)va_arg( args, int64_t * );
 361             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 362             {
 363                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 364                         p_sys->i_title_blocks * p_sys->i_title_offset;
 365                 return VLC_SUCCESS;
 366             }
 367             *pi64 = 0;
 368             return VLC_EGENERIC;
 369
 370         case DEMUX_GET_LENGTH:
 371             pi64 = (int64_t*)va_arg( args, int64_t * );
 372             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 373             {
 374                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 375                 return VLC_SUCCESS;
 376             }
 377             *pi64 = 0;
 378             return VLC_EGENERIC;
 379
 380         /* Special for access_demux */
 381         case DEMUX_CAN_PAUSE:
 382         case DEMUX_CAN_SEEK:
 383         case DEMUX_CAN_CONTROL_PACE:
 384             /* TODO */
 385             pb = (bool*)va_arg( args, bool * );
 386             *pb = true;
 387             return VLC_SUCCESS;
 388
 389         case DEMUX_SET_PAUSE_STATE:
 390             return VLC_SUCCESS;
 391
 392         case DEMUX_GET_TITLE_INFO:
 393             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 394             pi_int    = (int*)va_arg( args, int* );
 395             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 396             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 397
 398             /* Duplicate title infos */
 399             *pi_int = p_sys->i_titles;
 400             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 401             for( i = 0; i < p_sys->i_titles; i++ )
 402             {
 403                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 404             }
 405             return VLC_SUCCESS;
 406
 407         case DEMUX_SET_TITLE:
 408             i = (int)va_arg( args, int );
 409             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 410             {
 411                 msg_Warn( p_demux, "cannot set title/chapter" );
 412                 return VLC_EGENERIC;
 413             }
 414             p_demux->info.i_update |=
 415                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 416             p_demux->info.i_title = i;
 417             p_demux->info.i_seekpoint = 0;
 418             return VLC_SUCCESS;
 419
 420         case DEMUX_SET_SEEKPOINT:
 421             i = (int)va_arg( args, int );
 422             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 423             {
 424                 msg_Warn( p_demux, "cannot set title/chapter" );
 425                 return VLC_EGENERIC;
 426             }
 427             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 428             p_demux->info.i_seekpoint = i;
 429             return VLC_SUCCESS;
 430
 431         case DEMUX_GET_PTS_DELAY:
 432             pi64 = (int64_t*)va_arg( args, int64_t * );
 433             *pi64 = var_GetInteger( p_demux, "dvdread-caching" )*1000;
 434             return VLC_SUCCESS;
 435
 436         /* TODO implement others */
 437         default:
 438             return VLC_EGENERIC;
 439     }
 440 }
 441
 442 /*****************************************************************************
 443  * Demux:
 444  *****************************************************************************/
 445 static int Demux( demux_t *p_demux )
 446 {
 447     demux_sys_t *p_sys = p_demux->p_sys;
 448
 449     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 450     int i_blocks_once, i_read;
 451     int i;
 452
 453     /*
 454      * Playback by cell in this pgc, starting at the cell for our chapter.
 455      */
 456
 457     /*
 458      * Check end of pack, and select the following one
 459      */
 460     if( !p_sys->i_pack_len )
 461     {
 462         /* Read NAV packet */
 463         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 464                            1, p_buffer ) != 1 )
 465         {
 466             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 467             dialog_Fatal( p_demux, _("Playback failure"),
 468                           _("DVDRead could not read block %d."),
 469                           p_sys->i_next_vobu );
 470             return -1;
 471         }
 472
 473         /* Basic check to be sure we don't have a empty title
 474          * go to next title if so */
 475         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 476
 477         /* Parse the contained dsi packet */
 478         DvdReadHandleDSI( p_demux, p_buffer );
 479
 480         /* End of title */
 481         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 482         {
 483             if( p_sys->i_title + 1 >= p_sys->i_titles )
 484             {
 485                 return 0; /* EOF */
 486             }
 487
 488             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 489         }
 490
 491         if( p_sys->i_pack_len >= 1024 )
 492         {
 493             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 494                      "This shouldn't happen!", p_sys->i_pack_len );
 495             return 0; /* EOF */
 496         }
 497
 498         /* FIXME: Ugly kludge: we send the pack block to the input for it
 499          * sometimes has a zero scr and restart the sync */
 500         p_sys->i_cur_block++;
 501         p_sys->i_title_offset++;
 502
 503         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 504     }
 505
 506     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 507     {
 508         if( p_sys->i_title + 1 >= p_sys->i_titles )
 509         {
 510             return 0; /* EOF */
 511         }
 512
 513         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 514     }
 515
 516     /*
 517      * Read actual data
 518      */
 519     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 520     p_sys->i_pack_len -= i_blocks_once;
 521
 522     /* Reads from DVD */
 523     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 524                             i_blocks_once, p_buffer );
 525     if( i_read != i_blocks_once )
 526     {
 527         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 528                  i_read, i_blocks_once, p_sys->i_cur_block );
 529         dialog_Fatal( p_demux, _("Playback failure"),
 530                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 531                         i_read, i_blocks_once, p_sys->i_cur_block );
 532         return -1;
 533     }
 534
 535     p_sys->i_cur_block += i_read;
 536     p_sys->i_title_offset += i_read;
 537
 538 #if 0
 539     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 540              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 541 #endif
 542
 543     for( i = 0; i < i_read; i++ )
 544     {
 545         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 546                     DVD_VIDEO_LB_LEN );
 547     }
 548
 549 #undef p_pgc
 550
 551     return 1;
 552 }
 553
 554 /*****************************************************************************
 555  * DemuxBlock: demux a given block
 556  *****************************************************************************/
 557 static int DemuxBlock( demux_t *p_demux, const uint8_t *p, int len )
 558 {
 559     demux_sys_t *p_sys = p_demux->p_sys;
 560
 561     while( len > 0 )
 562     {
 563         int i_size = ps_pkt_size( p, len );
 564         if( i_size <= 0 || i_size > len )
 565         {
 566             break;
 567         }
 568
 569         /* Create a block */
 570         block_t *p_pkt = block_New( p_demux, i_size );
 571         memcpy( p_pkt->p_buffer, p, i_size);
 572
 573         /* Parse it and send it */
 574         switch( 0x100 | p[3] )
 575         {
 576         case 0x1b9:
 577         case 0x1bb:
 578         case 0x1bc:
 579
 580 #ifdef DVDREAD_DEBUG
 581             if( p[3] == 0xbc )
 582             {
 583                 msg_Warn( p_demux, "received a PSM packet" );
 584             }
 585             else if( p[3] == 0xbb )
 586             {
 587                 msg_Warn( p_demux, "received a SYSTEM packet" );
 588             }
 589 #endif
 590             block_Release( p_pkt );
 591             break;
 592
 593         case 0x1ba:
 594         {
 595             int64_t i_scr;
 596             int i_mux_rate;
 597             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 598             {
 599                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 600                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 601             }
 602             block_Release( p_pkt );
 603             break;
 604         }
 605         default:
 606         {
 607             int i_id = ps_pkt_id( p_pkt );
 608             if( i_id >= 0xc0 )
 609             {
 610                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 611
 612                 if( !tk->b_seen )
 613                 {
 614                     ESNew( p_demux, i_id, 0 );
 615                 }
 616                 if( tk->b_seen && tk->es &&
 617                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 618                 {
 619                     es_out_Send( p_demux->out, tk->es, p_pkt );
 620                 }
 621                 else
 622                 {
 623                     block_Release( p_pkt );
 624                 }
 625             }
 626             else
 627             {
 628                 block_Release( p_pkt );
 629             }
 630             break;
 631         }
 632         }
 633
 634         p += i_size;
 635         len -= i_size;
 636     }
 637
 638     return VLC_SUCCESS;
 639 }
 640
 641 /*****************************************************************************
 642  * ESNew: register a new elementary stream
 643  *****************************************************************************/
 644 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 645 {
 646     demux_sys_t *p_sys = p_demux->p_sys;
 647     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 648     char psz_language[3];
 649
 650     if( tk->b_seen ) return;
 651
 652     if( ps_track_fill( tk, 0, i_id ) )
 653     {
 654         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 655         return;
 656     }
 657
 658     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 659     if( i_lang && i_lang != 0xffff )
 660     {
 661         psz_language[0] = (i_lang >> 8)&0xff;
 662         psz_language[1] = (i_lang     )&0xff;
 663     }
 664
 665     /* Add a new ES */
 666     if( tk->fmt.i_cat == VIDEO_ES )
 667     {
 668         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 669         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 670     }
 671     else if( tk->fmt.i_cat == AUDIO_ES )
 672     {
 673         int i_audio = -1;
 674         /* find the audio number PLEASE find another way */
 675         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 676         {
 677             i_audio = i_id&0x07;
 678         }
 679         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 680         {
 681             i_audio = i_id&0xf;
 682         }
 683         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 684         {
 685             i_audio = i_id&0x1f;
 686         }
 687         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 688         {
 689             i_audio = i_id&0x1f;
 690         }
 691
 692         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 693     }
 694     else if( tk->fmt.i_cat == SPU_ES )
 695     {
 696         /* Palette */
 697         tk->fmt.subs.spu.palette[0] = 0xBeef;
 698         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 699                 16 * sizeof( uint32_t ) );
 700
 701         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 702     }
 703
 704     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 705     tk->b_seen = true;
 706 }
 707
 708 /*****************************************************************************
 709  * DvdReadSetArea: initialize input data for title x, chapter y.
 710  * It should be called for each user navigation request.
 711  *****************************************************************************
 712  * Take care that i_title and i_chapter start from 0.
 713  *****************************************************************************/
 714 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 715                            int i_angle )
 716 {
 717     VLC_UNUSED( i_angle );
 718
 719     demux_sys_t *p_sys = p_demux->p_sys;
 720     int pgc_id = 0, pgn = 0;
 721     int i;
 722
 723 #define p_pgc p_sys->p_cur_pgc
 724 #define p_vmg p_sys->p_vmg_file
 725 #define p_vts p_sys->p_vts_file
 726
 727     if( i_title >= 0 && i_title < p_sys->i_titles &&
 728         i_title != p_sys->i_title )
 729     {
 730         int i_start_cell, i_end_cell;
 731
 732         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 733         if( p_vts != NULL ) ifoClose( p_vts );
 734         p_sys->i_title = i_title;
 735
 736         /*
 737          *  We have to load all title information
 738          */
 739         msg_Dbg( p_demux, "open VTS %d, for title %d",
 740                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 741
 742         /* Ifo vts */
 743         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 744                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 745         {
 746             msg_Err( p_demux, "fatal error in vts ifo" );
 747             return VLC_EGENERIC;
 748         }
 749
 750         /* Title position inside the selected vts */
 751         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 752
 753         /* Find title start/end */
 754         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 755         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 756         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 757
 758         p_sys->i_title_start_cell =
 759             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 760         p_sys->i_title_start_block =
 761             p_pgc->cell_playback[i_start_cell].first_sector;
 762
 763         p_sys->i_title_end_cell =
 764             i_end_cell = p_pgc->nr_of_cells - 1;
 765         p_sys->i_title_end_block =
 766             p_pgc->cell_playback[i_end_cell].last_sector;
 767
 768         p_sys->i_title_offset = 0;
 769
 770         p_sys->i_title_blocks = 0;
 771         for( i = i_start_cell; i <= i_end_cell; i++ )
 772         {
 773             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 774                 p_pgc->cell_playback[i].first_sector + 1;
 775         }
 776
 777         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 778                  "start %d end %d blocks: %d",
 779                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 780                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 781                  p_sys->i_title_blocks );
 782
 783         /*
 784          * Set properties for current chapter
 785          */
 786         p_sys->i_chapter = 0;
 787         p_sys->i_chapters =
 788             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 789
 790         pgc_id = p_vts->vts_ptt_srpt->title[
 791                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 792         pgn = p_vts->vts_ptt_srpt->title[
 793                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 794
 795         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 796         p_sys->i_pack_len = 0;
 797         p_sys->i_next_cell =
 798             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 799         DvdReadFindCell( p_demux );
 800
 801         p_sys->i_next_vobu = p_sys->i_cur_block =
 802             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 803
 804         /*
 805          * Angle management
 806          */
 807         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 808         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 809
 810         /*
 811          * We've got enough info, time to open the title set data.
 812          */
 813         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 814             p_vmg->tt_srpt->title[i_title].title_set_nr,
 815             DVD_READ_TITLE_VOBS ) ) )
 816         {
 817             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 818                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 819             return VLC_EGENERIC;
 820         }
 821
 822         //IfoPrintTitle( p_demux );
 823
 824         /*
 825          * Destroy obsolete ES by reinitializing program 0
 826          * and find all ES in title with ifo data
 827          */
 828         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 829
 830         for( i = 0; i < PS_TK_COUNT; i++ )
 831         {
 832             ps_track_t *tk = &p_sys->tk[i];
 833             if( tk->b_seen )
 834             {
 835                 es_format_Clean( &tk->fmt );
 836                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 837             }
 838             tk->b_seen = false;
 839         }
 840
 841         if( p_demux->info.i_title != i_title )
 842         {
 843             p_demux->info.i_update |=
 844                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 845             p_demux->info.i_title = i_title;
 846             p_demux->info.i_seekpoint = 0;
 847         }
 848
 849         /* TODO: re-add angles */
 850
 851
 852         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 853         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 854         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 855         int i_video_width;
 856         switch( p_attr->picture_size )
 857         {
 858         case 0:
 859             i_video_width = 720;
 860             break;
 861         case 1:
 862             i_video_width = 704;
 863             break;
 864         case 2:
 865             i_video_width = 352;
 866             break;
 867         default:
 868         case 3:
 869             i_video_width = 352;
 870             i_video_height /= 2;
 871             break;
 872         }
 873         switch( p_attr->display_aspect_ratio )
 874         {
 875         case 0:
 876             p_sys->i_sar_num = 4 * i_video_height;
 877             p_sys->i_sar_den = 3 * i_video_width;
 878             break;
 879         case 3:
 880             p_sys->i_sar_num = 16 * i_video_height;
 881             p_sys->i_sar_den =  9 * i_video_width;
 882             break;
 883         default:
 884             p_sys->i_sar_num = 0;
 885             p_sys->i_sar_den = 0;
 886             break;
 887         }
 888
 889 #define audio_control \
 890     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 891
 892         /* Audio ES, in the order they appear in the .ifo */
 893         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 894         {
 895             int i_position = 0;
 896             uint16_t i_id;
 897
 898             //IfoPrintAudio( p_demux, i );
 899
 900             /* Audio channel is active if first byte is 0x80 */
 901             if( audio_control & 0x8000 )
 902             {
 903                 i_position = ( audio_control & 0x7F00 ) >> 8;
 904
 905                 msg_Dbg( p_demux, "audio position  %d", i_position );
 906                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 907                 {
 908                 case 0x00: /* A52 */
 909                     i_id = (0x80 + i_position) | 0xbd00;
 910                     break;
 911                 case 0x02:
 912                 case 0x03: /* MPEG audio */
 913                     i_id = 0xc000 + i_position;
 914                     break;
 915                 case 0x04: /* LPCM */
 916                     i_id = (0xa0 + i_position) | 0xbd00;
 917                     break;
 918                 case 0x06: /* DTS */
 919                     i_id = (0x88 + i_position) | 0xbd00;
 920                     break;
 921                 default:
 922                     i_id = 0;
 923                     msg_Err( p_demux, "unknown audio type %.2x",
 924                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 925                 }
 926
 927                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 928                        vts_audio_attr[i - 1].lang_code );
 929             }
 930         }
 931 #undef audio_control
 932
 933 #define spu_palette \
 934     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 935
 936         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 937
 938 #define spu_control \
 939     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 940
 941         /* Sub Picture ES */
 942         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 943         {
 944             int i_position = 0;
 945             uint16_t i_id;
 946
 947             //IfoPrintSpu( p_sys, i );
 948             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 949
 950             if( spu_control & 0x80000000 )
 951             {
 952                 /*  there are several streams for one spu */
 953                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 954                 {
 955                     /* 16:9 */
 956                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 957                     {
 958                     case 1: /* letterbox */
 959                         i_position = spu_control & 0xff;
 960                         break;
 961                     case 2: /* pan&scan */
 962                         i_position = ( spu_control >> 8 ) & 0xff;
 963                         break;
 964                     default: /* widescreen */
 965                         i_position = ( spu_control >> 16 ) & 0xff;
 966                         break;
 967                     }
 968                 }
 969                 else
 970                 {
 971                     /* 4:3 */
 972                     i_position = ( spu_control >> 24 ) & 0x7F;
 973                 }
 974
 975                 i_id = (0x20 + i_position) | 0xbd00;
 976
 977                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 978                        vts_subp_attr[i - 1].lang_code );
 979             }
 980         }
 981 #undef spu_control
 982
 983     }
 984     else if( i_title != -1 && i_title != p_sys->i_title )
 985
 986     {
 987         return VLC_EGENERIC; /* Couldn't set title */
 988     }
 989
 990     /*
 991      * Chapter selection
 992      */
 993
 994     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 995     {
 996         pgc_id = p_vts->vts_ptt_srpt->title[
 997                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
 998         pgn = p_vts->vts_ptt_srpt->title[
 999                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1000
1001         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1002
1003         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1004         p_sys->i_chapter = i_chapter;
1005         DvdReadFindCell( p_demux );
1006
1007         p_sys->i_title_offset = 0;
1008         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1009         {
1010             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1011                 p_pgc->cell_playback[i].first_sector + 1;
1012         }
1013
1014         p_sys->i_pack_len = 0;
1015         p_sys->i_next_vobu = p_sys->i_cur_block =
1016             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1017
1018         if( p_demux->info.i_seekpoint != i_chapter )
1019         {
1020             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1021             p_demux->info.i_seekpoint = i_chapter;
1022         }
1023     }
1024     else if( i_chapter != -1 )
1025
1026     {
1027         return VLC_EGENERIC; /* Couldn't set chapter */
1028     }
1029
1030 #undef p_pgc
1031 #undef p_vts
1032 #undef p_vmg
1033
1034     return VLC_SUCCESS;
1035 }
1036
1037 /*****************************************************************************
1038  * DvdReadSeek : Goes to a given position on the stream.
1039  *****************************************************************************
1040  * This one is used by the input and translate chronological position from
1041  * input to logical position on the device.
1042  *****************************************************************************/
1043 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1044 {
1045     demux_sys_t *p_sys = p_demux->p_sys;
1046     int i_chapter = 0;
1047     int i_cell = 0;
1048     int i_vobu = 0;
1049     int i_sub_cell = 0;
1050     int i_block;
1051
1052 #define p_pgc p_sys->p_cur_pgc
1053 #define p_vts p_sys->p_vts_file
1054
1055     /* Find cell */
1056     i_block = i_block_offset;
1057     for( i_cell = p_sys->i_title_start_cell;
1058          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1059     {
1060         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1061             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1062
1063         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1064             p_pgc->cell_playback[i_cell].first_sector + 1);
1065     }
1066     if( i_cell > p_sys->i_title_end_cell )
1067     {
1068         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1069         return;
1070     }
1071     i_block += p_pgc->cell_playback[i_cell].first_sector;
1072     p_sys->i_title_offset = i_block_offset;
1073
1074     /* Find chapter */
1075     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1076     {
1077         int pgc_id, pgn, i_tmp;
1078
1079         pgc_id = p_vts->vts_ptt_srpt->title[
1080                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1081         pgn = p_vts->vts_ptt_srpt->title[
1082                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1083
1084         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1085
1086         if( i_tmp > i_cell ) break;
1087     }
1088
1089     if( i_chapter < p_sys->i_chapters &&
1090         p_demux->info.i_seekpoint != i_chapter )
1091     {
1092         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1093         p_demux->info.i_seekpoint = i_chapter;
1094     }
1095
1096     /* Find vobu */
1097     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1098     {
1099         i_vobu++;
1100     }
1101
1102     /* Find sub_cell */
1103     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1104            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1105     {
1106         i_sub_cell++;
1107     }
1108
1109 #if 1
1110     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1111              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1112              i_cell, i_sub_cell, i_chapter, i_vobu,
1113              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1114              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1115              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1116 #endif
1117
1118     p_sys->i_cur_block = i_block;
1119     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1120     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1121     p_sys->i_cur_cell = i_cell;
1122     p_sys->i_chapter = i_chapter;
1123     DvdReadFindCell( p_demux );
1124
1125 #undef p_vts
1126 #undef p_pgc
1127
1128     return;
1129 }
1130
1131 /*****************************************************************************
1132  * DvdReadHandleDSI
1133  *****************************************************************************/
1134 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1135 {
1136     demux_sys_t *p_sys = p_demux->p_sys;
1137
1138     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1139
1140     /*
1141      * Determine where we go next.  These values are the ones we mostly
1142      * care about.
1143      */
1144     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1145     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1146
1147     /*
1148      * Store the timecodes so we can get the current time
1149      */
1150     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1151     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1152
1153     /*
1154      * If we're not at the end of this cell, we can determine the next
1155      * VOBU to display using the VOBU_SRI information section of the
1156      * DSI.  Using this value correctly follows the current angle,
1157      * avoiding the doubled scenes in The Matrix, and makes our life
1158      * really happy.
1159      */
1160
1161     p_sys->i_next_vobu = p_sys->i_cur_block +
1162         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1163
1164     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1165         && p_sys->i_angle > 1 )
1166     {
1167         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1168         {
1169         case 0x4:
1170             /* Interleaved unit with no angle */
1171             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1172             {
1173                 p_sys->i_next_vobu = p_sys->i_cur_block +
1174                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1175                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1176             }
1177             else
1178             {
1179                 p_sys->i_next_vobu = p_sys->i_cur_block +
1180                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1181             }
1182             break;
1183         case 0x5:
1184             /* vobu is end of ilvu */
1185             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1186             {
1187                 p_sys->i_next_vobu = p_sys->i_cur_block +
1188                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1189                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1190
1191                 break;
1192             }
1193         case 0x6:
1194             /* vobu is beginning of ilvu */
1195         case 0x9:
1196             /* next scr is 0 */
1197         case 0xa:
1198             /* entering interleaved section */
1199         case 0x8:
1200             /* non interleaved cells in interleaved section */
1201         default:
1202             p_sys->i_next_vobu = p_sys->i_cur_block +
1203                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1204             break;
1205         }
1206     }
1207     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1208     {
1209         p_sys->i_cur_cell = p_sys->i_next_cell;
1210
1211         /* End of title */
1212         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1213
1214         DvdReadFindCell( p_demux );
1215
1216         p_sys->i_next_vobu =
1217             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1218
1219         p_sys->i_cell_duration = (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 );
1220     }
1221
1222
1223 #if 0
1224     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1225              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1226              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1227              p_sys->dsi_pack.dsi_gi.vobu_ea,
1228              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1229              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1230              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1231
1232     msg_Dbg( p_demux, "cell duration: %lld",
1233              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1234
1235     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1236              p_sys->dsi_pack.sml_pbi.category,
1237              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1238              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1239              p_sys->dsi_pack.sml_pbi.size );
1240
1241     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1242              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1243              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1244              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1245 #endif
1246 }
1247
1248 /*****************************************************************************
1249  * DvdReadFindCell
1250  *****************************************************************************/
1251 static void DvdReadFindCell( demux_t *p_demux )
1252 {
1253     demux_sys_t *p_sys = p_demux->p_sys;
1254
1255     pgc_t *p_pgc;
1256     int   pgc_id, pgn;
1257     int   i = 0;
1258
1259 #define cell p_sys->p_cur_pgc->cell_playback
1260
1261     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1262     {
1263         p_sys->i_cur_cell += p_sys->i_angle - 1;
1264
1265         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1266         {
1267             i++;
1268         }
1269         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1270     }
1271     else
1272     {
1273         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1274     }
1275
1276 #undef cell
1277
1278     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1279
1280     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1281                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1282     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1283               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1284     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1285
1286     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1287     {
1288         p_sys->i_chapter++;
1289
1290         if( p_sys->i_chapter < p_sys->i_chapters &&
1291             p_demux->info.i_seekpoint != p_sys->i_chapter )
1292         {
1293             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1294             p_demux->info.i_seekpoint = p_sys->i_chapter;
1295         }
1296     }
1297 }
1298
1299 /*****************************************************************************
1300  * DemuxTitles: get the titles/chapters structure
1301  *****************************************************************************/
1302 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1303 {
1304     VLC_UNUSED( pi_angle );
1305
1306     demux_sys_t *p_sys = p_demux->p_sys;
1307     input_title_t *t;
1308     seekpoint_t *s;
1309
1310     /* Find out number of titles/chapters */
1311 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1312
1313     int32_t i_titles = tt_srpt->nr_of_srpts;
1314     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1315
1316     for( int i = 0; i < i_titles; i++ )
1317     {
1318         int32_t i_chapters = 0;
1319         int j;
1320
1321         i_chapters = tt_srpt->title[i].nr_of_ptts;
1322         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1323
1324         t = vlc_input_title_New();
1325
1326         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1327         {
1328             s = vlc_seekpoint_New();
1329             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1330         }
1331
1332         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1333     }
1334
1335 #undef tt_srpt
1336 }