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 #ifdef HAVE_DVDREAD_DVD_READER_H
  52   #include <dvdread/dvd_reader.h>
  53   #include <dvdread/ifo_types.h>
  54   #include <dvdread/ifo_read.h>
  55   #include <dvdread/nav_read.h>
  56   #include <dvdread/nav_print.h>
  57 #else
  58   #include <libdvdread/dvd_reader.h>
  59   #include <libdvdread/ifo_types.h>
  60   #include <libdvdread/ifo_read.h>
  61   #include <libdvdread/nav_read.h>
  62   #include <libdvdread/nav_print.h>
  63 #endif
  64
  65 #include <assert.h>
  66
  67 /*****************************************************************************
  68  * Module descriptor
  69  *****************************************************************************/
  70 #define ANGLE_TEXT N_("DVD angle")
  71 #define ANGLE_LONGTEXT N_( \
  72     "Default DVD angle." )
  73
  74 #define CACHING_TEXT N_("Caching value in ms")
  75 #define CACHING_LONGTEXT N_( \
  76     "Caching value for DVDs. " \
  77     "This value should be set in milliseconds." )
  78
  79 static int  Open ( vlc_object_t * );
  80 static void Close( vlc_object_t * );
  81
  82 vlc_module_begin ()
  83     set_shortname( N_("DVD without menus") )
  84     set_description( N_("DVDRead Input (no menu support)") )
  85     set_category( CAT_INPUT )
  86     set_subcategory( SUBCAT_INPUT_ACCESS )
  87     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
  88         ANGLE_LONGTEXT, false )
  89     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
  90         CACHING_TEXT, CACHING_LONGTEXT, true )
  91     add_obsolete_string( "dvdread-css-method" ) /* obsolete since 1.1.0 */
  92     set_capability( "access_demux", 0 )
  93     add_shortcut( "dvd" )
  94     add_shortcut( "dvdread" )
  95     add_shortcut( "dvdsimple" )
  96     set_callbacks( Open, Close )
  97 vlc_module_end ()
  98
  99 /* how many blocks DVDRead will read in each loop */
 100 #define DVD_BLOCK_READ_ONCE 4
 101
 102 /*****************************************************************************
 103  * Local prototypes
 104  *****************************************************************************/
 105
 106 struct demux_sys_t
 107 {
 108     /* DVDRead state */
 109     dvd_reader_t *p_dvdread;
 110     dvd_file_t   *p_title;
 111
 112     ifo_handle_t *p_vmg_file;
 113     ifo_handle_t *p_vts_file;
 114
 115     int i_title;
 116     int i_chapter, i_chapters;
 117     int i_angle, i_angles;
 118
 119     tt_srpt_t    *p_tt_srpt;
 120     pgc_t        *p_cur_pgc;
 121     dsi_t        dsi_pack;
 122     int          i_ttn;
 123
 124     int i_pack_len;
 125     int i_cur_block;
 126     int i_next_vobu;
 127
 128     int i_mux_rate;
 129
 130     /* Current title start/end blocks */
 131     int i_title_start_block;
 132     int i_title_end_block;
 133     int i_title_blocks;
 134     int i_title_offset;
 135     mtime_t i_title_cur_time;
 136
 137     int i_title_start_cell;
 138     int i_title_end_cell;
 139     int i_cur_cell;
 140     int i_next_cell;
 141     mtime_t i_cell_cur_time;
 142     mtime_t i_cell_duration;
 143
 144     /* Track */
 145     ps_track_t    tk[PS_TK_COUNT];
 146
 147     int           i_titles;
 148     input_title_t **titles;
 149
 150     /* Video */
 151     int i_sar_num;
 152     int i_sar_den;
 153
 154     /* SPU */
 155     uint32_t clut[16];
 156 };
 157
 158 static int Control   ( demux_t *, int, va_list );
 159 static int Demux     ( demux_t * );
 160 static int DemuxBlock( demux_t *, uint8_t *, int );
 161
 162 static void DemuxTitles( demux_t *, int * );
 163 static void ESNew( demux_t *, int, int );
 164
 165 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 166 static void DvdReadSeek     ( demux_t *, int );
 167 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 168 static void DvdReadFindCell ( demux_t * );
 169
 170 /*****************************************************************************
 171  * Open:
 172  *****************************************************************************/
 173 static int Open( vlc_object_t *p_this )
 174 {
 175     demux_t      *p_demux = (demux_t*)p_this;
 176     demux_sys_t  *p_sys;
 177     char         *psz_name;
 178     dvd_reader_t *p_dvdread;
 179     ifo_handle_t *p_vmg_file;
 180
 181     if( !p_demux->psz_path || !*p_demux->psz_path )
 182     {
 183         /* Only when selected */
 184         if( !p_demux->psz_access || !*p_demux->psz_access )
 185             return VLC_EGENERIC;
 186
 187         psz_name = var_CreateGetString( p_this, "dvd" );
 188         if( !psz_name )
 189         {
 190             psz_name = strdup("");
 191         }
 192     }
 193     else
 194         psz_name = ToLocaleDup( p_demux->psz_path );
 195
 196 #ifdef WIN32
 197     if( psz_name[0] && psz_name[1] == ':' &&
 198         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 199 #endif
 200
 201     /* Open dvdread */
 202     if( !(p_dvdread = DVDOpen( psz_name )) )
 203     {
 204         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 205         dialog_Fatal( p_demux, _("Playback failure"),
 206                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 207         free( psz_name );
 208         return VLC_EGENERIC;
 209     }
 210     free( psz_name );
 211
 212     /* Ifo allocation & initialisation */
 213     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 214     {
 215         msg_Warn( p_demux, "cannot open VMG info" );
 216         return VLC_EGENERIC;
 217     }
 218     msg_Dbg( p_demux, "VMG opened" );
 219
 220     /* Fill p_demux field */
 221     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 222
 223     ps_track_init( p_sys->tk );
 224     p_sys->i_sar_num = 0;
 225     p_sys->i_sar_den = 0;
 226     p_sys->i_title_cur_time = (mtime_t) 0;
 227     p_sys->i_cell_cur_time = (mtime_t) 0;
 228     p_sys->i_cell_duration = (mtime_t) 0;
 229
 230     p_sys->p_dvdread = p_dvdread;
 231     p_sys->p_vmg_file = p_vmg_file;
 232     p_sys->p_title = NULL;
 233     p_sys->p_vts_file = NULL;
 234
 235     p_sys->i_title = p_sys->i_chapter = -1;
 236     p_sys->i_mux_rate = 0;
 237
 238     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 239     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 240
 241     DemuxTitles( p_demux, &p_sys->i_angle );
 242     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 243     {
 244         Close( p_this );
 245         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 246                  p_sys->i_angle );
 247         return VLC_EGENERIC;
 248     }
 249
 250     /* Update default_pts to a suitable value for dvdread access */
 251     var_Create( p_demux, "dvdread-caching",
 252                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 253
 254     return VLC_SUCCESS;
 255 }
 256
 257 /*****************************************************************************
 258  * Close:
 259  *****************************************************************************/
 260 static void Close( vlc_object_t *p_this )
 261 {
 262     demux_t     *p_demux = (demux_t*)p_this;
 263     demux_sys_t *p_sys = p_demux->p_sys;
 264     int i;
 265
 266     for( i = 0; i < PS_TK_COUNT; i++ )
 267     {
 268         ps_track_t *tk = &p_sys->tk[i];
 269         if( tk->b_seen )
 270         {
 271             es_format_Clean( &tk->fmt );
 272             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 273         }
 274     }
 275
 276     /* Close libdvdread */
 277     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 278     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 279     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 280     DVDClose( p_sys->p_dvdread );
 281
 282     free( p_sys );
 283 }
 284
 285 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 286 {
 287 /* Macro to convert Binary Coded Decimal to Decimal */
 288 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 289
 290     double f_fps, f_ms;
 291     int64_t i_micro_second = 0;
 292
 293     if (still_time == 0 || still_time == 0xFF)
 294     {
 295         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 296         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 297         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 298
 299         switch((dtime->frame_u & 0xc0) >> 6)
 300         {
 301         case 1:
 302             f_fps = 25.0;
 303             break;
 304         case 3:
 305             f_fps = 29.97;
 306             break;
 307         default:
 308             f_fps = 2500.0;
 309             break;
 310         }
 311         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 312         i_micro_second += (int64_t)(f_ms * 1000.0);
 313     }
 314     else
 315     {
 316         i_micro_second = still_time;
 317         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 318     }
 319
 320     return i_micro_second;
 321 }
 322
 323 /*****************************************************************************
 324  * Control:
 325  *****************************************************************************/
 326 static int Control( demux_t *p_demux, int i_query, va_list args )
 327 {
 328     demux_sys_t *p_sys = p_demux->p_sys;
 329     double f, *pf;
 330     bool *pb;
 331     int64_t *pi64;
 332     input_title_t ***ppp_title;
 333     int *pi_int;
 334     int i;
 335
 336     switch( i_query )
 337     {
 338         case DEMUX_GET_POSITION:
 339         {
 340             pf = (double*) va_arg( args, double* );
 341
 342             if( p_sys->i_title_blocks > 0 )
 343                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 344             else
 345                 *pf = 0.0;
 346
 347             return VLC_SUCCESS;
 348         }
 349         case DEMUX_SET_POSITION:
 350         {
 351             f = (double)va_arg( args, double );
 352
 353             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 354
 355             return VLC_SUCCESS;
 356         }
 357         case DEMUX_GET_TIME:
 358             pi64 = (int64_t*)va_arg( args, int64_t * );
 359             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 360             {
 361                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 362                         p_sys->i_title_blocks * p_sys->i_title_offset;
 363                 return VLC_SUCCESS;
 364             }
 365             *pi64 = 0;
 366             return VLC_EGENERIC;
 367
 368         case DEMUX_GET_LENGTH:
 369             pi64 = (int64_t*)va_arg( args, int64_t * );
 370             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 371             {
 372                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 373                 return VLC_SUCCESS;
 374             }
 375             *pi64 = 0;
 376             return VLC_EGENERIC;
 377
 378         /* Special for access_demux */
 379         case DEMUX_CAN_PAUSE:
 380         case DEMUX_CAN_SEEK:
 381         case DEMUX_CAN_CONTROL_PACE:
 382             /* TODO */
 383             pb = (bool*)va_arg( args, bool * );
 384             *pb = true;
 385             return VLC_SUCCESS;
 386
 387         case DEMUX_SET_PAUSE_STATE:
 388             return VLC_SUCCESS;
 389
 390         case DEMUX_GET_TITLE_INFO:
 391             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 392             pi_int    = (int*)va_arg( args, int* );
 393             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 394             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 395
 396             /* Duplicate title infos */
 397             *pi_int = p_sys->i_titles;
 398             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 399             for( i = 0; i < p_sys->i_titles; i++ )
 400             {
 401                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 402             }
 403             return VLC_SUCCESS;
 404
 405         case DEMUX_SET_TITLE:
 406             i = (int)va_arg( args, int );
 407             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 408             {
 409                 msg_Warn( p_demux, "cannot set title/chapter" );
 410                 return VLC_EGENERIC;
 411             }
 412             p_demux->info.i_update |=
 413                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 414             p_demux->info.i_title = i;
 415             p_demux->info.i_seekpoint = 0;
 416             return VLC_SUCCESS;
 417
 418         case DEMUX_SET_SEEKPOINT:
 419             i = (int)va_arg( args, int );
 420             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 421             {
 422                 msg_Warn( p_demux, "cannot set title/chapter" );
 423                 return VLC_EGENERIC;
 424             }
 425             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 426             p_demux->info.i_seekpoint = i;
 427             return VLC_SUCCESS;
 428
 429         case DEMUX_GET_PTS_DELAY:
 430             pi64 = (int64_t*)va_arg( args, int64_t * );
 431             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 432             return VLC_SUCCESS;
 433
 434         /* TODO implement others */
 435         default:
 436             return VLC_EGENERIC;
 437     }
 438 }
 439
 440 /*****************************************************************************
 441  * Demux:
 442  *****************************************************************************/
 443 static int Demux( demux_t *p_demux )
 444 {
 445     demux_sys_t *p_sys = p_demux->p_sys;
 446
 447     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 448     int i_blocks_once, i_read;
 449     int i;
 450
 451     /*
 452      * Playback by cell in this pgc, starting at the cell for our chapter.
 453      */
 454
 455     /*
 456      * Check end of pack, and select the following one
 457      */
 458     if( !p_sys->i_pack_len )
 459     {
 460         /* Read NAV packet */
 461         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 462                            1, p_buffer ) != 1 )
 463         {
 464             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 465             dialog_Fatal( p_demux, _("Playback failure"),
 466                           _("DVDRead could not read block %d."),
 467                           p_sys->i_next_vobu );
 468             return -1;
 469         }
 470
 471         /* Basic check to be sure we don't have a empty title
 472          * go to next title if so */
 473         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 474
 475         /* Parse the contained dsi packet */
 476         DvdReadHandleDSI( p_demux, p_buffer );
 477
 478         /* End of title */
 479         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 480         {
 481             if( p_sys->i_title + 1 >= p_sys->i_titles )
 482             {
 483                 return 0; /* EOF */
 484             }
 485
 486             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 487         }
 488
 489         if( p_sys->i_pack_len >= 1024 )
 490         {
 491             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 492                      "This shouldn't happen!", p_sys->i_pack_len );
 493             return 0; /* EOF */
 494         }
 495
 496         /* FIXME: Ugly kludge: we send the pack block to the input for it
 497          * sometimes has a zero scr and restart the sync */
 498         p_sys->i_cur_block++;
 499         p_sys->i_title_offset++;
 500
 501         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 502     }
 503
 504     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 505     {
 506         if( p_sys->i_title + 1 >= p_sys->i_titles )
 507         {
 508             return 0; /* EOF */
 509         }
 510
 511         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 512     }
 513
 514     /*
 515      * Read actual data
 516      */
 517     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 518     p_sys->i_pack_len -= i_blocks_once;
 519
 520     /* Reads from DVD */
 521     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 522                             i_blocks_once, p_buffer );
 523     if( i_read != i_blocks_once )
 524     {
 525         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 526                  i_read, i_blocks_once, p_sys->i_cur_block );
 527         dialog_Fatal( p_demux, _("Playback failure"),
 528                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 529                         i_read, i_blocks_once, p_sys->i_cur_block );
 530         return -1;
 531     }
 532
 533     p_sys->i_cur_block += i_read;
 534     p_sys->i_title_offset += i_read;
 535
 536 #if 0
 537     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 538              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 539 #endif
 540
 541     for( i = 0; i < i_read; i++ )
 542     {
 543         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 544                     DVD_VIDEO_LB_LEN );
 545     }
 546
 547 #undef p_pgc
 548
 549     return 1;
 550 }
 551
 552 /*****************************************************************************
 553  * DemuxBlock: demux a given block
 554  *****************************************************************************/
 555 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 556 {
 557     demux_sys_t *p_sys = p_demux->p_sys;
 558     uint8_t     *p = pkt;
 559
 560     while( p && p < &pkt[i_pkt] )
 561     {
 562         block_t *p_pkt;
 563         int i_size = &pkt[i_pkt] - p;
 564
 565         if( i_size < 6 )
 566             break;
 567
 568         i_size = ps_pkt_size( p, i_size );
 569         if( i_size <= 0 )
 570         {
 571             break;
 572         }
 573
 574         /* Create a block */
 575         p_pkt = block_New( p_demux, i_size );
 576         memcpy( p_pkt->p_buffer, p, i_size);
 577
 578         /* Parse it and send it */
 579         switch( 0x100 | p[3] )
 580         {
 581         case 0x1b9:
 582         case 0x1bb:
 583         case 0x1bc:
 584
 585 #ifdef DVDREAD_DEBUG
 586             if( p[3] == 0xbc )
 587             {
 588                 msg_Warn( p_demux, "received a PSM packet" );
 589             }
 590             else if( p[3] == 0xbb )
 591             {
 592                 msg_Warn( p_demux, "received a SYSTEM packet" );
 593             }
 594 #endif
 595             block_Release( p_pkt );
 596             break;
 597
 598         case 0x1ba:
 599         {
 600             int64_t i_scr;
 601             int i_mux_rate;
 602             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 603             {
 604                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 605                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 606             }
 607             block_Release( p_pkt );
 608             break;
 609         }
 610         default:
 611         {
 612             int i_id = ps_pkt_id( p_pkt );
 613             if( i_id >= 0xc0 )
 614             {
 615                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 616
 617                 if( !tk->b_seen )
 618                 {
 619                     ESNew( p_demux, i_id, 0 );
 620                 }
 621                 if( tk->b_seen && tk->es &&
 622                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 623                 {
 624                     es_out_Send( p_demux->out, tk->es, p_pkt );
 625                 }
 626                 else
 627                 {
 628                     block_Release( p_pkt );
 629                 }
 630             }
 631             else
 632             {
 633                 block_Release( p_pkt );
 634             }
 635             break;
 636         }
 637         }
 638
 639         p += i_size;
 640     }
 641
 642     return VLC_SUCCESS;
 643 }
 644
 645 /*****************************************************************************
 646  * ESNew: register a new elementary stream
 647  *****************************************************************************/
 648 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 649 {
 650     demux_sys_t *p_sys = p_demux->p_sys;
 651     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 652     char psz_language[3];
 653
 654     if( tk->b_seen ) return;
 655
 656     if( ps_track_fill( tk, 0, i_id ) )
 657     {
 658         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 659         return;
 660     }
 661
 662     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 663     if( i_lang && i_lang != 0xffff )
 664     {
 665         psz_language[0] = (i_lang >> 8)&0xff;
 666         psz_language[1] = (i_lang     )&0xff;
 667     }
 668
 669     /* Add a new ES */
 670     if( tk->fmt.i_cat == VIDEO_ES )
 671     {
 672         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 673         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 674     }
 675     else if( tk->fmt.i_cat == AUDIO_ES )
 676     {
 677         int i_audio = -1;
 678         /* find the audio number PLEASE find another way */
 679         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 680         {
 681             i_audio = i_id&0x07;
 682         }
 683         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 684         {
 685             i_audio = i_id&0xf;
 686         }
 687         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 688         {
 689             i_audio = i_id&0x1f;
 690         }
 691         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 692         {
 693             i_audio = i_id&0x1f;
 694         }
 695
 696         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 697     }
 698     else if( tk->fmt.i_cat == SPU_ES )
 699     {
 700         /* Palette */
 701         tk->fmt.subs.spu.palette[0] = 0xBeef;
 702         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 703                 16 * sizeof( uint32_t ) );
 704
 705         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 706     }
 707
 708     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 709     tk->b_seen = true;
 710 }
 711
 712 /*****************************************************************************
 713  * DvdReadSetArea: initialize input data for title x, chapter y.
 714  * It should be called for each user navigation request.
 715  *****************************************************************************
 716  * Take care that i_title and i_chapter start from 0.
 717  *****************************************************************************/
 718 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 719                            int i_angle )
 720 {
 721     VLC_UNUSED( i_angle );
 722
 723     demux_sys_t *p_sys = p_demux->p_sys;
 724     int pgc_id = 0, pgn = 0;
 725     int i;
 726
 727 #define p_pgc p_sys->p_cur_pgc
 728 #define p_vmg p_sys->p_vmg_file
 729 #define p_vts p_sys->p_vts_file
 730
 731     if( i_title >= 0 && i_title < p_sys->i_titles &&
 732         i_title != p_sys->i_title )
 733     {
 734         int i_start_cell, i_end_cell;
 735
 736         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 737         if( p_vts != NULL ) ifoClose( p_vts );
 738         p_sys->i_title = i_title;
 739
 740         /*
 741          *  We have to load all title information
 742          */
 743         msg_Dbg( p_demux, "open VTS %d, for title %d",
 744                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 745
 746         /* Ifo vts */
 747         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 748                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 749         {
 750             msg_Err( p_demux, "fatal error in vts ifo" );
 751             return VLC_EGENERIC;
 752         }
 753
 754         /* Title position inside the selected vts */
 755         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 756
 757         /* Find title start/end */
 758         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 759         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 760         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 761
 762         p_sys->i_title_start_cell =
 763             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 764         p_sys->i_title_start_block =
 765             p_pgc->cell_playback[i_start_cell].first_sector;
 766
 767         p_sys->i_title_end_cell =
 768             i_end_cell = p_pgc->nr_of_cells - 1;
 769         p_sys->i_title_end_block =
 770             p_pgc->cell_playback[i_end_cell].last_sector;
 771
 772         p_sys->i_title_offset = 0;
 773
 774         p_sys->i_title_blocks = 0;
 775         for( i = i_start_cell; i <= i_end_cell; i++ )
 776         {
 777             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 778                 p_pgc->cell_playback[i].first_sector + 1;
 779         }
 780
 781         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 782                  "start %d end %d blocks: %d",
 783                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 784                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 785                  p_sys->i_title_blocks );
 786
 787         /*
 788          * Set properties for current chapter
 789          */
 790         p_sys->i_chapter = 0;
 791         p_sys->i_chapters =
 792             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 793
 794         pgc_id = p_vts->vts_ptt_srpt->title[
 795                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 796         pgn = p_vts->vts_ptt_srpt->title[
 797                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 798
 799         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 800         p_sys->i_pack_len = 0;
 801         p_sys->i_next_cell =
 802             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 803         DvdReadFindCell( p_demux );
 804
 805         p_sys->i_next_vobu = p_sys->i_cur_block =
 806             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 807
 808         /*
 809          * Angle management
 810          */
 811         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 812         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 813
 814         /*
 815          * We've got enough info, time to open the title set data.
 816          */
 817         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 818             p_vmg->tt_srpt->title[i_title].title_set_nr,
 819             DVD_READ_TITLE_VOBS ) ) )
 820         {
 821             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 822                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 823             return VLC_EGENERIC;
 824         }
 825
 826         //IfoPrintTitle( p_demux );
 827
 828         /*
 829          * Destroy obsolete ES by reinitializing program 0
 830          * and find all ES in title with ifo data
 831          */
 832         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 833
 834         for( i = 0; i < PS_TK_COUNT; i++ )
 835         {
 836             ps_track_t *tk = &p_sys->tk[i];
 837             if( tk->b_seen )
 838             {
 839                 es_format_Clean( &tk->fmt );
 840                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 841             }
 842             tk->b_seen = false;
 843         }
 844
 845         if( p_demux->info.i_title != i_title )
 846         {
 847             p_demux->info.i_update |=
 848                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 849             p_demux->info.i_title = i_title;
 850             p_demux->info.i_seekpoint = 0;
 851         }
 852
 853         /* TODO: re-add angles */
 854
 855
 856         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 857         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 858         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 859         int i_video_width;
 860         switch( p_attr->picture_size )
 861         {
 862         case 0:
 863             i_video_width = 720;
 864             break;
 865         case 1:
 866             i_video_width = 704;
 867             break;
 868         case 2:
 869             i_video_width = 352;
 870             break;
 871         default:
 872         case 3:
 873             i_video_width = 352;
 874             i_video_height /= 2;
 875             break;
 876         }
 877         switch( p_attr->display_aspect_ratio )
 878         {
 879         case 0:
 880             p_sys->i_sar_num = 4 * i_video_height;
 881             p_sys->i_sar_den = 3 * i_video_width;
 882             break;
 883         case 3:
 884             p_sys->i_sar_num = 16 * i_video_height;
 885             p_sys->i_sar_den =  9 * i_video_width;
 886             break;
 887         default:
 888             p_sys->i_sar_num = 0;
 889             p_sys->i_sar_den = 0;
 890             break;
 891         }
 892
 893 #define audio_control \
 894     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 895
 896         /* Audio ES, in the order they appear in the .ifo */
 897         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 898         {
 899             int i_position = 0;
 900             uint16_t i_id;
 901
 902             //IfoPrintAudio( p_demux, i );
 903
 904             /* Audio channel is active if first byte is 0x80 */
 905             if( audio_control & 0x8000 )
 906             {
 907                 i_position = ( audio_control & 0x7F00 ) >> 8;
 908
 909                 msg_Dbg( p_demux, "audio position  %d", i_position );
 910                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 911                 {
 912                 case 0x00: /* A52 */
 913                     i_id = (0x80 + i_position) | 0xbd00;
 914                     break;
 915                 case 0x02:
 916                 case 0x03: /* MPEG audio */
 917                     i_id = 0xc000 + i_position;
 918                     break;
 919                 case 0x04: /* LPCM */
 920                     i_id = (0xa0 + i_position) | 0xbd00;
 921                     break;
 922                 case 0x06: /* DTS */
 923                     i_id = (0x88 + i_position) | 0xbd00;
 924                     break;
 925                 default:
 926                     i_id = 0;
 927                     msg_Err( p_demux, "unknown audio type %.2x",
 928                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 929                 }
 930
 931                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 932                        vts_audio_attr[i - 1].lang_code );
 933             }
 934         }
 935 #undef audio_control
 936
 937 #define spu_palette \
 938     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 939
 940         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 941
 942 #define spu_control \
 943     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 944
 945         /* Sub Picture ES */
 946         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 947         {
 948             int i_position = 0;
 949             uint16_t i_id;
 950
 951             //IfoPrintSpu( p_sys, i );
 952             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 953
 954             if( spu_control & 0x80000000 )
 955             {
 956                 /*  there are several streams for one spu */
 957                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 958                 {
 959                     /* 16:9 */
 960                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 961                     {
 962                     case 1: /* letterbox */
 963                         i_position = spu_control & 0xff;
 964                         break;
 965                     case 2: /* pan&scan */
 966                         i_position = ( spu_control >> 8 ) & 0xff;
 967                         break;
 968                     default: /* widescreen */
 969                         i_position = ( spu_control >> 16 ) & 0xff;
 970                         break;
 971                     }
 972                 }
 973                 else
 974                 {
 975                     /* 4:3 */
 976                     i_position = ( spu_control >> 24 ) & 0x7F;
 977                 }
 978
 979                 i_id = (0x20 + i_position) | 0xbd00;
 980
 981                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 982                        vts_subp_attr[i - 1].lang_code );
 983             }
 984         }
 985 #undef spu_control
 986
 987     }
 988     else if( i_title != -1 && i_title != p_sys->i_title )
 989
 990     {
 991         return VLC_EGENERIC; /* Couldn't set title */
 992     }
 993
 994     /*
 995      * Chapter selection
 996      */
 997
 998     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 999     {
1000         pgc_id = p_vts->vts_ptt_srpt->title[
1001                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1002         pgn = p_vts->vts_ptt_srpt->title[
1003                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1004
1005         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1006
1007         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1008         p_sys->i_chapter = i_chapter;
1009         DvdReadFindCell( p_demux );
1010
1011         p_sys->i_title_offset = 0;
1012         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1013         {
1014             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1015                 p_pgc->cell_playback[i].first_sector + 1;
1016         }
1017
1018         p_sys->i_pack_len = 0;
1019         p_sys->i_next_vobu = p_sys->i_cur_block =
1020             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1021
1022         if( p_demux->info.i_seekpoint != i_chapter )
1023         {
1024             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1025             p_demux->info.i_seekpoint = i_chapter;
1026         }
1027     }
1028     else if( i_chapter != -1 )
1029
1030     {
1031         return VLC_EGENERIC; /* Couldn't set chapter */
1032     }
1033
1034 #undef p_pgc
1035 #undef p_vts
1036 #undef p_vmg
1037
1038     return VLC_SUCCESS;
1039 }
1040
1041 /*****************************************************************************
1042  * DvdReadSeek : Goes to a given position on the stream.
1043  *****************************************************************************
1044  * This one is used by the input and translate chronological position from
1045  * input to logical position on the device.
1046  *****************************************************************************/
1047 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1048 {
1049     demux_sys_t *p_sys = p_demux->p_sys;
1050     int i_chapter = 0;
1051     int i_cell = 0;
1052     int i_vobu = 0;
1053     int i_sub_cell = 0;
1054     int i_block;
1055
1056 #define p_pgc p_sys->p_cur_pgc
1057 #define p_vts p_sys->p_vts_file
1058
1059     /* Find cell */
1060     i_block = i_block_offset;
1061     for( i_cell = p_sys->i_title_start_cell;
1062          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1063     {
1064         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1065             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1066
1067         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1068             p_pgc->cell_playback[i_cell].first_sector + 1);
1069     }
1070     if( i_cell > p_sys->i_title_end_cell )
1071     {
1072         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1073         return;
1074     }
1075     i_block += p_pgc->cell_playback[i_cell].first_sector;
1076     p_sys->i_title_offset = i_block_offset;
1077
1078     /* Find chapter */
1079     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1080     {
1081         int pgc_id, pgn, i_tmp;
1082
1083         pgc_id = p_vts->vts_ptt_srpt->title[
1084                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1085         pgn = p_vts->vts_ptt_srpt->title[
1086                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1087
1088         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1089
1090         if( i_tmp > i_cell ) break;
1091     }
1092
1093     if( i_chapter < p_sys->i_chapters &&
1094         p_demux->info.i_seekpoint != i_chapter )
1095     {
1096         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1097         p_demux->info.i_seekpoint = i_chapter;
1098     }
1099
1100     /* Find vobu */
1101     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1102     {
1103         i_vobu++;
1104     }
1105
1106     /* Find sub_cell */
1107     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1108            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1109     {
1110         i_sub_cell++;
1111     }
1112
1113 #if 1
1114     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1115              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1116              i_cell, i_sub_cell, i_chapter, i_vobu,
1117              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1118              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1119              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1120 #endif
1121
1122     p_sys->i_cur_block = i_block;
1123     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1124     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1125     p_sys->i_cur_cell = i_cell;
1126     p_sys->i_chapter = i_chapter;
1127     DvdReadFindCell( p_demux );
1128
1129 #undef p_vts
1130 #undef p_pgc
1131
1132     return;
1133 }
1134
1135 /*****************************************************************************
1136  * DvdReadHandleDSI
1137  *****************************************************************************/
1138 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1139 {
1140     demux_sys_t *p_sys = p_demux->p_sys;
1141
1142     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1143
1144     /*
1145      * Determine where we go next.  These values are the ones we mostly
1146      * care about.
1147      */
1148     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1149     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1150
1151     /*
1152      * Store the timecodes so we can get the current time
1153      */
1154     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1155     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1156
1157     /*
1158      * If we're not at the end of this cell, we can determine the next
1159      * VOBU to display using the VOBU_SRI information section of the
1160      * DSI.  Using this value correctly follows the current angle,
1161      * avoiding the doubled scenes in The Matrix, and makes our life
1162      * really happy.
1163      */
1164
1165     p_sys->i_next_vobu = p_sys->i_cur_block +
1166         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1167
1168     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1169         && p_sys->i_angle > 1 )
1170     {
1171         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1172         {
1173         case 0x4:
1174             /* Interleaved unit with no angle */
1175             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1176             {
1177                 p_sys->i_next_vobu = p_sys->i_cur_block +
1178                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1179                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1180             }
1181             else
1182             {
1183                 p_sys->i_next_vobu = p_sys->i_cur_block +
1184                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1185             }
1186             break;
1187         case 0x5:
1188             /* vobu is end of ilvu */
1189             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1190             {
1191                 p_sys->i_next_vobu = p_sys->i_cur_block +
1192                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1193                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1194
1195                 break;
1196             }
1197         case 0x6:
1198             /* vobu is beginning of ilvu */
1199         case 0x9:
1200             /* next scr is 0 */
1201         case 0xa:
1202             /* entering interleaved section */
1203         case 0x8:
1204             /* non interleaved cells in interleaved section */
1205         default:
1206             p_sys->i_next_vobu = p_sys->i_cur_block +
1207                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1208             break;
1209         }
1210     }
1211     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1212     {
1213         p_sys->i_cur_cell = p_sys->i_next_cell;
1214
1215         /* End of title */
1216         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1217
1218         DvdReadFindCell( p_demux );
1219
1220         p_sys->i_next_vobu =
1221             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1222
1223         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 );
1224     }
1225
1226
1227 #if 0
1228     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1229              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1230              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1231              p_sys->dsi_pack.dsi_gi.vobu_ea,
1232              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1233              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1234              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1235
1236     msg_Dbg( p_demux, "cell duration: %lld",
1237              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1238
1239     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1240              p_sys->dsi_pack.sml_pbi.category,
1241              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1242              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1243              p_sys->dsi_pack.sml_pbi.size );
1244
1245     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1246              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1247              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1248              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1249 #endif
1250 }
1251
1252 /*****************************************************************************
1253  * DvdReadFindCell
1254  *****************************************************************************/
1255 static void DvdReadFindCell( demux_t *p_demux )
1256 {
1257     demux_sys_t *p_sys = p_demux->p_sys;
1258
1259     pgc_t *p_pgc;
1260     int   pgc_id, pgn;
1261     int   i = 0;
1262
1263 #define cell p_sys->p_cur_pgc->cell_playback
1264
1265     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1266     {
1267         p_sys->i_cur_cell += p_sys->i_angle - 1;
1268
1269         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1270         {
1271             i++;
1272         }
1273         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1274     }
1275     else
1276     {
1277         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1278     }
1279
1280 #undef cell
1281
1282     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1283
1284     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1285                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1286     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1287               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1288     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1289
1290     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1291     {
1292         p_sys->i_chapter++;
1293
1294         if( p_sys->i_chapter < p_sys->i_chapters &&
1295             p_demux->info.i_seekpoint != p_sys->i_chapter )
1296         {
1297             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1298             p_demux->info.i_seekpoint = p_sys->i_chapter;
1299         }
1300     }
1301 }
1302
1303 /*****************************************************************************
1304  * DemuxTitles: get the titles/chapters structure
1305  *****************************************************************************/
1306 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1307 {
1308     VLC_UNUSED( pi_angle );
1309
1310     demux_sys_t *p_sys = p_demux->p_sys;
1311     input_title_t *t;
1312     seekpoint_t *s;
1313
1314     /* Find out number of titles/chapters */
1315 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1316
1317     int32_t i_titles = tt_srpt->nr_of_srpts;
1318     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1319
1320     for( int i = 0; i < i_titles; i++ )
1321     {
1322         int32_t i_chapters = 0;
1323         int j;
1324
1325         i_chapters = tt_srpt->title[i].nr_of_ptts;
1326         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1327
1328         t = vlc_input_title_New();
1329
1330         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1331         {
1332             s = vlc_seekpoint_New();
1333             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1334         }
1335
1336         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1337     }
1338
1339 #undef tt_srpt
1340 }