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 #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", "dvdread", "dvdsimple" )
  94     set_callbacks( Open, Close )
  95 vlc_module_end ()
  96
  97 /* how many blocks DVDRead will read in each loop */
  98 #define DVD_BLOCK_READ_ONCE 4
  99
 100 /*****************************************************************************
 101  * Local prototypes
 102  *****************************************************************************/
 103
 104 struct demux_sys_t
 105 {
 106     /* DVDRead state */
 107     dvd_reader_t *p_dvdread;
 108     dvd_file_t   *p_title;
 109
 110     ifo_handle_t *p_vmg_file;
 111     ifo_handle_t *p_vts_file;
 112
 113     int i_title;
 114     int i_chapter, i_chapters;
 115     int i_angle, i_angles;
 116
 117     tt_srpt_t    *p_tt_srpt;
 118     pgc_t        *p_cur_pgc;
 119     dsi_t        dsi_pack;
 120     int          i_ttn;
 121
 122     int i_pack_len;
 123     int i_cur_block;
 124     int i_next_vobu;
 125
 126     int i_mux_rate;
 127
 128     /* Current title start/end blocks */
 129     int i_title_start_block;
 130     int i_title_end_block;
 131     int i_title_blocks;
 132     int i_title_offset;
 133     mtime_t i_title_cur_time;
 134
 135     int i_title_start_cell;
 136     int i_title_end_cell;
 137     int i_cur_cell;
 138     int i_next_cell;
 139     mtime_t i_cell_cur_time;
 140     mtime_t i_cell_duration;
 141
 142     /* Track */
 143     ps_track_t    tk[PS_TK_COUNT];
 144
 145     int           i_titles;
 146     input_title_t **titles;
 147
 148     /* Video */
 149     int i_sar_num;
 150     int i_sar_den;
 151
 152     /* SPU */
 153     uint32_t clut[16];
 154 };
 155
 156 static int Control   ( demux_t *, int, va_list );
 157 static int Demux     ( demux_t * );
 158 static int DemuxBlock( demux_t *, uint8_t *, int );
 159
 160 static void DemuxTitles( demux_t *, int * );
 161 static void ESNew( demux_t *, int, int );
 162
 163 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 164 static void DvdReadSeek     ( demux_t *, int );
 165 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 166 static void DvdReadFindCell ( demux_t * );
 167
 168 /*****************************************************************************
 169  * Open:
 170  *****************************************************************************/
 171 static int Open( vlc_object_t *p_this )
 172 {
 173     demux_t      *p_demux = (demux_t*)p_this;
 174     demux_sys_t  *p_sys;
 175     char         *psz_name;
 176     dvd_reader_t *p_dvdread;
 177     ifo_handle_t *p_vmg_file;
 178
 179     if( !p_demux->psz_file || !*p_demux->psz_file )
 180     {
 181         /* Only when selected */
 182         if( !p_demux->psz_access || !*p_demux->psz_access )
 183             return VLC_EGENERIC;
 184
 185         psz_name = var_CreateGetString( p_this, "dvd" );
 186         if( !psz_name )
 187         {
 188             psz_name = strdup("");
 189         }
 190     }
 191     else
 192         psz_name = ToLocaleDup( p_demux->psz_file );
 193
 194 #ifdef WIN32
 195     if( psz_name[0] && psz_name[1] == ':' &&
 196         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 197 #endif
 198
 199     /* Open dvdread */
 200     if( !(p_dvdread = DVDOpen( psz_name )) )
 201     {
 202         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 203         dialog_Fatal( p_demux, _("Playback failure"),
 204                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 205         free( psz_name );
 206         return VLC_EGENERIC;
 207     }
 208     free( psz_name );
 209
 210     /* Ifo allocation & initialisation */
 211     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 212     {
 213         msg_Warn( p_demux, "cannot open VMG info" );
 214         return VLC_EGENERIC;
 215     }
 216     msg_Dbg( p_demux, "VMG opened" );
 217
 218     /* Fill p_demux field */
 219     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 220
 221     ps_track_init( p_sys->tk );
 222     p_sys->i_sar_num = 0;
 223     p_sys->i_sar_den = 0;
 224     p_sys->i_title_cur_time = (mtime_t) 0;
 225     p_sys->i_cell_cur_time = (mtime_t) 0;
 226     p_sys->i_cell_duration = (mtime_t) 0;
 227
 228     p_sys->p_dvdread = p_dvdread;
 229     p_sys->p_vmg_file = p_vmg_file;
 230     p_sys->p_title = NULL;
 231     p_sys->p_vts_file = NULL;
 232
 233     p_sys->i_title = p_sys->i_chapter = -1;
 234     p_sys->i_mux_rate = 0;
 235
 236     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 237     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 238
 239     DemuxTitles( p_demux, &p_sys->i_angle );
 240     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 241     {
 242         Close( p_this );
 243         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 244                  p_sys->i_angle );
 245         return VLC_EGENERIC;
 246     }
 247
 248     /* Update default_pts to a suitable value for dvdread access */
 249     var_Create( p_demux, "dvdread-caching",
 250                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 251
 252     return VLC_SUCCESS;
 253 }
 254
 255 /*****************************************************************************
 256  * Close:
 257  *****************************************************************************/
 258 static void Close( vlc_object_t *p_this )
 259 {
 260     demux_t     *p_demux = (demux_t*)p_this;
 261     demux_sys_t *p_sys = p_demux->p_sys;
 262     int i;
 263
 264     for( i = 0; i < PS_TK_COUNT; i++ )
 265     {
 266         ps_track_t *tk = &p_sys->tk[i];
 267         if( tk->b_seen )
 268         {
 269             es_format_Clean( &tk->fmt );
 270             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 271         }
 272     }
 273
 274     /* Free the array of titles */
 275     for( int i = 0; i < p_sys->i_titles; i++ )
 276         vlc_input_title_Delete( p_sys->titles[i] );
 277     TAB_CLEAN( p_sys->i_titles, p_sys->titles );
 278
 279     /* Close libdvdread */
 280     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 281     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 282     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 283     DVDClose( p_sys->p_dvdread );
 284
 285     free( p_sys );
 286 }
 287
 288 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 289 {
 290 /* Macro to convert Binary Coded Decimal to Decimal */
 291 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 292
 293     double f_fps, f_ms;
 294     int64_t i_micro_second = 0;
 295
 296     if (still_time == 0 || still_time == 0xFF)
 297     {
 298         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 299         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 300         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 301
 302         switch((dtime->frame_u & 0xc0) >> 6)
 303         {
 304         case 1:
 305             f_fps = 25.0;
 306             break;
 307         case 3:
 308             f_fps = 29.97;
 309             break;
 310         default:
 311             f_fps = 2500.0;
 312             break;
 313         }
 314         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 315         i_micro_second += (int64_t)(f_ms * 1000.0);
 316     }
 317     else
 318     {
 319         i_micro_second = still_time;
 320         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 321     }
 322
 323     return i_micro_second;
 324 }
 325
 326 /*****************************************************************************
 327  * Control:
 328  *****************************************************************************/
 329 static int Control( demux_t *p_demux, int i_query, va_list args )
 330 {
 331     demux_sys_t *p_sys = p_demux->p_sys;
 332     double f, *pf;
 333     bool *pb;
 334     int64_t *pi64;
 335     input_title_t ***ppp_title;
 336     int *pi_int;
 337     int i;
 338
 339     switch( i_query )
 340     {
 341         case DEMUX_GET_POSITION:
 342         {
 343             pf = (double*) va_arg( args, double* );
 344
 345             if( p_sys->i_title_blocks > 0 )
 346                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 347             else
 348                 *pf = 0.0;
 349
 350             return VLC_SUCCESS;
 351         }
 352         case DEMUX_SET_POSITION:
 353         {
 354             f = (double)va_arg( args, double );
 355
 356             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 357
 358             return VLC_SUCCESS;
 359         }
 360         case DEMUX_GET_TIME:
 361             pi64 = (int64_t*)va_arg( args, int64_t * );
 362             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 363             {
 364                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 365                         p_sys->i_title_blocks * p_sys->i_title_offset;
 366                 return VLC_SUCCESS;
 367             }
 368             *pi64 = 0;
 369             return VLC_EGENERIC;
 370
 371         case DEMUX_GET_LENGTH:
 372             pi64 = (int64_t*)va_arg( args, int64_t * );
 373             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 374             {
 375                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 376                 return VLC_SUCCESS;
 377             }
 378             *pi64 = 0;
 379             return VLC_EGENERIC;
 380
 381         /* Special for access_demux */
 382         case DEMUX_CAN_PAUSE:
 383         case DEMUX_CAN_SEEK:
 384         case DEMUX_CAN_CONTROL_PACE:
 385             /* TODO */
 386             pb = (bool*)va_arg( args, bool * );
 387             *pb = true;
 388             return VLC_SUCCESS;
 389
 390         case DEMUX_SET_PAUSE_STATE:
 391             return VLC_SUCCESS;
 392
 393         case DEMUX_GET_TITLE_INFO:
 394             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 395             pi_int    = (int*)va_arg( args, int* );
 396             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 397             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 398
 399             /* Duplicate title infos */
 400             *pi_int = p_sys->i_titles;
 401             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 402             for( i = 0; i < p_sys->i_titles; i++ )
 403             {
 404                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 405             }
 406             return VLC_SUCCESS;
 407
 408         case DEMUX_SET_TITLE:
 409             i = (int)va_arg( args, int );
 410             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 411             {
 412                 msg_Warn( p_demux, "cannot set title/chapter" );
 413                 return VLC_EGENERIC;
 414             }
 415             p_demux->info.i_update |=
 416                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 417             p_demux->info.i_title = i;
 418             p_demux->info.i_seekpoint = 0;
 419             return VLC_SUCCESS;
 420
 421         case DEMUX_SET_SEEKPOINT:
 422             i = (int)va_arg( args, int );
 423             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 424             {
 425                 msg_Warn( p_demux, "cannot set title/chapter" );
 426                 return VLC_EGENERIC;
 427             }
 428             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 429             p_demux->info.i_seekpoint = i;
 430             return VLC_SUCCESS;
 431
 432         case DEMUX_GET_PTS_DELAY:
 433             pi64 = (int64_t*)va_arg( args, int64_t * );
 434             *pi64 = var_GetInteger( p_demux, "dvdread-caching" )*1000;
 435             return VLC_SUCCESS;
 436
 437         /* TODO implement others */
 438         default:
 439             return VLC_EGENERIC;
 440     }
 441 }
 442
 443 /*****************************************************************************
 444  * Demux:
 445  *****************************************************************************/
 446 static int Demux( demux_t *p_demux )
 447 {
 448     demux_sys_t *p_sys = p_demux->p_sys;
 449
 450     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 451     int i_blocks_once, i_read;
 452     int i;
 453
 454     /*
 455      * Playback by cell in this pgc, starting at the cell for our chapter.
 456      */
 457
 458     /*
 459      * Check end of pack, and select the following one
 460      */
 461     if( !p_sys->i_pack_len )
 462     {
 463         /* Read NAV packet */
 464         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 465                            1, p_buffer ) != 1 )
 466         {
 467             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 468             dialog_Fatal( p_demux, _("Playback failure"),
 469                           _("DVDRead could not read block %d."),
 470                           p_sys->i_next_vobu );
 471             return -1;
 472         }
 473
 474         /* Basic check to be sure we don't have a empty title
 475          * go to next title if so */
 476         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 477
 478         /* Parse the contained dsi packet */
 479         DvdReadHandleDSI( p_demux, p_buffer );
 480
 481         /* End of title */
 482         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 483         {
 484             if( p_sys->i_title + 1 >= p_sys->i_titles )
 485             {
 486                 return 0; /* EOF */
 487             }
 488
 489             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 490         }
 491
 492         if( p_sys->i_pack_len >= 1024 )
 493         {
 494             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 495                      "This shouldn't happen!", p_sys->i_pack_len );
 496             return 0; /* EOF */
 497         }
 498
 499         /* FIXME: Ugly kludge: we send the pack block to the input for it
 500          * sometimes has a zero scr and restart the sync */
 501         p_sys->i_cur_block++;
 502         p_sys->i_title_offset++;
 503
 504         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 505     }
 506
 507     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 508     {
 509         if( p_sys->i_title + 1 >= p_sys->i_titles )
 510         {
 511             return 0; /* EOF */
 512         }
 513
 514         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 515     }
 516
 517     /*
 518      * Read actual data
 519      */
 520     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 521     p_sys->i_pack_len -= i_blocks_once;
 522
 523     /* Reads from DVD */
 524     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 525                             i_blocks_once, p_buffer );
 526     if( i_read != i_blocks_once )
 527     {
 528         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 529                  i_read, i_blocks_once, p_sys->i_cur_block );
 530         dialog_Fatal( p_demux, _("Playback failure"),
 531                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 532                         i_read, i_blocks_once, p_sys->i_cur_block );
 533         return -1;
 534     }
 535
 536     p_sys->i_cur_block += i_read;
 537     p_sys->i_title_offset += i_read;
 538
 539 #if 0
 540     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 541              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 542 #endif
 543
 544     for( i = 0; i < i_read; i++ )
 545     {
 546         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 547                     DVD_VIDEO_LB_LEN );
 548     }
 549
 550 #undef p_pgc
 551
 552     return 1;
 553 }
 554
 555 /*****************************************************************************
 556  * DemuxBlock: demux a given block
 557  *****************************************************************************/
 558 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 559 {
 560     demux_sys_t *p_sys = p_demux->p_sys;
 561     uint8_t     *p = pkt;
 562
 563     while( p && p < &pkt[i_pkt] )
 564     {
 565         block_t *p_pkt;
 566         int i_size = &pkt[i_pkt] - p;
 567
 568         if( i_size < 6 )
 569             break;
 570
 571         i_size = ps_pkt_size( p, i_size );
 572         if( i_size <= 0 )
 573         {
 574             break;
 575         }
 576
 577         /* Create a block */
 578         p_pkt = block_New( p_demux, i_size );
 579         memcpy( p_pkt->p_buffer, p, i_size);
 580
 581         /* Parse it and send it */
 582         switch( 0x100 | p[3] )
 583         {
 584         case 0x1b9:
 585         case 0x1bb:
 586         case 0x1bc:
 587
 588 #ifdef DVDREAD_DEBUG
 589             if( p[3] == 0xbc )
 590             {
 591                 msg_Warn( p_demux, "received a PSM packet" );
 592             }
 593             else if( p[3] == 0xbb )
 594             {
 595                 msg_Warn( p_demux, "received a SYSTEM packet" );
 596             }
 597 #endif
 598             block_Release( p_pkt );
 599             break;
 600
 601         case 0x1ba:
 602         {
 603             int64_t i_scr;
 604             int i_mux_rate;
 605             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 606             {
 607                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 608                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 609             }
 610             block_Release( p_pkt );
 611             break;
 612         }
 613         default:
 614         {
 615             int i_id = ps_pkt_id( p_pkt );
 616             if( i_id >= 0xc0 )
 617             {
 618                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 619
 620                 if( !tk->b_seen )
 621                 {
 622                     ESNew( p_demux, i_id, 0 );
 623                 }
 624                 if( tk->b_seen && tk->es &&
 625                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 626                 {
 627                     es_out_Send( p_demux->out, tk->es, p_pkt );
 628                 }
 629                 else
 630                 {
 631                     block_Release( p_pkt );
 632                 }
 633             }
 634             else
 635             {
 636                 block_Release( p_pkt );
 637             }
 638             break;
 639         }
 640         }
 641
 642         p += i_size;
 643     }
 644
 645     return VLC_SUCCESS;
 646 }
 647
 648 /*****************************************************************************
 649  * ESNew: register a new elementary stream
 650  *****************************************************************************/
 651 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 652 {
 653     demux_sys_t *p_sys = p_demux->p_sys;
 654     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 655     char psz_language[3];
 656
 657     if( tk->b_seen ) return;
 658
 659     if( ps_track_fill( tk, 0, i_id ) )
 660     {
 661         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 662         return;
 663     }
 664
 665     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 666     if( i_lang && i_lang != 0xffff )
 667     {
 668         psz_language[0] = (i_lang >> 8)&0xff;
 669         psz_language[1] = (i_lang     )&0xff;
 670     }
 671
 672     /* Add a new ES */
 673     if( tk->fmt.i_cat == VIDEO_ES )
 674     {
 675         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 676         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 677     }
 678     else if( tk->fmt.i_cat == AUDIO_ES )
 679     {
 680         int i_audio = -1;
 681         /* find the audio number PLEASE find another way */
 682         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 683         {
 684             i_audio = i_id&0x07;
 685         }
 686         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 687         {
 688             i_audio = i_id&0xf;
 689         }
 690         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 691         {
 692             i_audio = i_id&0x1f;
 693         }
 694         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 695         {
 696             i_audio = i_id&0x1f;
 697         }
 698
 699         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 700     }
 701     else if( tk->fmt.i_cat == SPU_ES )
 702     {
 703         /* Palette */
 704         tk->fmt.subs.spu.palette[0] = 0xBeef;
 705         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 706                 16 * sizeof( uint32_t ) );
 707
 708         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 709     }
 710
 711     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 712     tk->b_seen = true;
 713 }
 714
 715 /*****************************************************************************
 716  * DvdReadSetArea: initialize input data for title x, chapter y.
 717  * It should be called for each user navigation request.
 718  *****************************************************************************
 719  * Take care that i_title and i_chapter start from 0.
 720  *****************************************************************************/
 721 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 722                            int i_angle )
 723 {
 724     VLC_UNUSED( i_angle );
 725
 726     demux_sys_t *p_sys = p_demux->p_sys;
 727     int pgc_id = 0, pgn = 0;
 728     int i;
 729
 730 #define p_pgc p_sys->p_cur_pgc
 731 #define p_vmg p_sys->p_vmg_file
 732 #define p_vts p_sys->p_vts_file
 733
 734     if( i_title >= 0 && i_title < p_sys->i_titles &&
 735         i_title != p_sys->i_title )
 736     {
 737         int i_start_cell, i_end_cell;
 738
 739         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 740         if( p_vts != NULL ) ifoClose( p_vts );
 741         p_sys->i_title = i_title;
 742
 743         /*
 744          *  We have to load all title information
 745          */
 746         msg_Dbg( p_demux, "open VTS %d, for title %d",
 747                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 748
 749         /* Ifo vts */
 750         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 751                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 752         {
 753             msg_Err( p_demux, "fatal error in vts ifo" );
 754             return VLC_EGENERIC;
 755         }
 756
 757         /* Title position inside the selected vts */
 758         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 759
 760         /* Find title start/end */
 761         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 762         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 763         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 764
 765         p_sys->i_title_start_cell =
 766             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 767         p_sys->i_title_start_block =
 768             p_pgc->cell_playback[i_start_cell].first_sector;
 769
 770         p_sys->i_title_end_cell =
 771             i_end_cell = p_pgc->nr_of_cells - 1;
 772         p_sys->i_title_end_block =
 773             p_pgc->cell_playback[i_end_cell].last_sector;
 774
 775         p_sys->i_title_offset = 0;
 776
 777         p_sys->i_title_blocks = 0;
 778         for( i = i_start_cell; i <= i_end_cell; i++ )
 779         {
 780             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 781                 p_pgc->cell_playback[i].first_sector + 1;
 782         }
 783
 784         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 785                  "start %d end %d blocks: %d",
 786                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 787                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 788                  p_sys->i_title_blocks );
 789
 790         /*
 791          * Set properties for current chapter
 792          */
 793         p_sys->i_chapter = 0;
 794         p_sys->i_chapters =
 795             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 796
 797         pgc_id = p_vts->vts_ptt_srpt->title[
 798                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 799         pgn = p_vts->vts_ptt_srpt->title[
 800                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 801
 802         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 803         p_sys->i_pack_len = 0;
 804         p_sys->i_next_cell =
 805             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 806         DvdReadFindCell( p_demux );
 807
 808         p_sys->i_next_vobu = p_sys->i_cur_block =
 809             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 810
 811         /*
 812          * Angle management
 813          */
 814         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 815         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 816
 817         /*
 818          * We've got enough info, time to open the title set data.
 819          */
 820         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 821             p_vmg->tt_srpt->title[i_title].title_set_nr,
 822             DVD_READ_TITLE_VOBS ) ) )
 823         {
 824             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 825                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 826             return VLC_EGENERIC;
 827         }
 828
 829         //IfoPrintTitle( p_demux );
 830
 831         /*
 832          * Destroy obsolete ES by reinitializing program 0
 833          * and find all ES in title with ifo data
 834          */
 835         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 836
 837         for( i = 0; i < PS_TK_COUNT; i++ )
 838         {
 839             ps_track_t *tk = &p_sys->tk[i];
 840             if( tk->b_seen )
 841             {
 842                 es_format_Clean( &tk->fmt );
 843                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 844             }
 845             tk->b_seen = false;
 846         }
 847
 848         if( p_demux->info.i_title != i_title )
 849         {
 850             p_demux->info.i_update |=
 851                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 852             p_demux->info.i_title = i_title;
 853             p_demux->info.i_seekpoint = 0;
 854         }
 855
 856         /* TODO: re-add angles */
 857
 858
 859         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 860         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 861         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 862         int i_video_width;
 863         switch( p_attr->picture_size )
 864         {
 865         case 0:
 866             i_video_width = 720;
 867             break;
 868         case 1:
 869             i_video_width = 704;
 870             break;
 871         case 2:
 872             i_video_width = 352;
 873             break;
 874         default:
 875         case 3:
 876             i_video_width = 352;
 877             i_video_height /= 2;
 878             break;
 879         }
 880         switch( p_attr->display_aspect_ratio )
 881         {
 882         case 0:
 883             p_sys->i_sar_num = 4 * i_video_height;
 884             p_sys->i_sar_den = 3 * i_video_width;
 885             break;
 886         case 3:
 887             p_sys->i_sar_num = 16 * i_video_height;
 888             p_sys->i_sar_den =  9 * i_video_width;
 889             break;
 890         default:
 891             p_sys->i_sar_num = 0;
 892             p_sys->i_sar_den = 0;
 893             break;
 894         }
 895
 896 #define audio_control \
 897     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 898
 899         /* Audio ES, in the order they appear in the .ifo */
 900         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 901         {
 902             int i_position = 0;
 903             uint16_t i_id;
 904
 905             //IfoPrintAudio( p_demux, i );
 906
 907             /* Audio channel is active if first byte is 0x80 */
 908             if( audio_control & 0x8000 )
 909             {
 910                 i_position = ( audio_control & 0x7F00 ) >> 8;
 911
 912                 msg_Dbg( p_demux, "audio position  %d", i_position );
 913                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 914                 {
 915                 case 0x00: /* A52 */
 916                     i_id = (0x80 + i_position) | 0xbd00;
 917                     break;
 918                 case 0x02:
 919                 case 0x03: /* MPEG audio */
 920                     i_id = 0xc000 + i_position;
 921                     break;
 922                 case 0x04: /* LPCM */
 923                     i_id = (0xa0 + i_position) | 0xbd00;
 924                     break;
 925                 case 0x06: /* DTS */
 926                     i_id = (0x88 + i_position) | 0xbd00;
 927                     break;
 928                 default:
 929                     i_id = 0;
 930                     msg_Err( p_demux, "unknown audio type %.2x",
 931                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 932                 }
 933
 934                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 935                        vts_audio_attr[i - 1].lang_code );
 936             }
 937         }
 938 #undef audio_control
 939
 940 #define spu_palette \
 941     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 942
 943         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 944
 945 #define spu_control \
 946     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 947
 948         /* Sub Picture ES */
 949         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 950         {
 951             int i_position = 0;
 952             uint16_t i_id;
 953
 954             //IfoPrintSpu( p_sys, i );
 955             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 956
 957             if( spu_control & 0x80000000 )
 958             {
 959                 /*  there are several streams for one spu */
 960                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 961                 {
 962                     /* 16:9 */
 963                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 964                     {
 965                     case 1: /* letterbox */
 966                         i_position = spu_control & 0xff;
 967                         break;
 968                     case 2: /* pan&scan */
 969                         i_position = ( spu_control >> 8 ) & 0xff;
 970                         break;
 971                     default: /* widescreen */
 972                         i_position = ( spu_control >> 16 ) & 0xff;
 973                         break;
 974                     }
 975                 }
 976                 else
 977                 {
 978                     /* 4:3 */
 979                     i_position = ( spu_control >> 24 ) & 0x7F;
 980                 }
 981
 982                 i_id = (0x20 + i_position) | 0xbd00;
 983
 984                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 985                        vts_subp_attr[i - 1].lang_code );
 986             }
 987         }
 988 #undef spu_control
 989
 990     }
 991     else if( i_title != -1 && i_title != p_sys->i_title )
 992
 993     {
 994         return VLC_EGENERIC; /* Couldn't set title */
 995     }
 996
 997     /*
 998      * Chapter selection
 999      */
1000
1001     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1002     {
1003         pgc_id = p_vts->vts_ptt_srpt->title[
1004                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1005         pgn = p_vts->vts_ptt_srpt->title[
1006                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1007
1008         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1009
1010         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1011         p_sys->i_chapter = i_chapter;
1012         DvdReadFindCell( p_demux );
1013
1014         p_sys->i_title_offset = 0;
1015         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1016         {
1017             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1018                 p_pgc->cell_playback[i].first_sector + 1;
1019         }
1020
1021         p_sys->i_pack_len = 0;
1022         p_sys->i_next_vobu = p_sys->i_cur_block =
1023             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1024
1025         if( p_demux->info.i_seekpoint != i_chapter )
1026         {
1027             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1028             p_demux->info.i_seekpoint = i_chapter;
1029         }
1030     }
1031     else if( i_chapter != -1 )
1032
1033     {
1034         return VLC_EGENERIC; /* Couldn't set chapter */
1035     }
1036
1037 #undef p_pgc
1038 #undef p_vts
1039 #undef p_vmg
1040
1041     return VLC_SUCCESS;
1042 }
1043
1044 /*****************************************************************************
1045  * DvdReadSeek : Goes to a given position on the stream.
1046  *****************************************************************************
1047  * This one is used by the input and translate chronological position from
1048  * input to logical position on the device.
1049  *****************************************************************************/
1050 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1051 {
1052     demux_sys_t *p_sys = p_demux->p_sys;
1053     int i_chapter = 0;
1054     int i_cell = 0;
1055     int i_vobu = 0;
1056     int i_sub_cell = 0;
1057     int i_block;
1058
1059 #define p_pgc p_sys->p_cur_pgc
1060 #define p_vts p_sys->p_vts_file
1061
1062     /* Find cell */
1063     i_block = i_block_offset;
1064     for( i_cell = p_sys->i_title_start_cell;
1065          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1066     {
1067         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1068             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1069
1070         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1071             p_pgc->cell_playback[i_cell].first_sector + 1);
1072     }
1073     if( i_cell > p_sys->i_title_end_cell )
1074     {
1075         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1076         return;
1077     }
1078     i_block += p_pgc->cell_playback[i_cell].first_sector;
1079     p_sys->i_title_offset = i_block_offset;
1080
1081     /* Find chapter */
1082     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1083     {
1084         int pgc_id, pgn, i_tmp;
1085
1086         pgc_id = p_vts->vts_ptt_srpt->title[
1087                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1088         pgn = p_vts->vts_ptt_srpt->title[
1089                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1090
1091         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1092
1093         if( i_tmp > i_cell ) break;
1094     }
1095
1096     if( i_chapter < p_sys->i_chapters &&
1097         p_demux->info.i_seekpoint != i_chapter )
1098     {
1099         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1100         p_demux->info.i_seekpoint = i_chapter;
1101     }
1102
1103     /* Find vobu */
1104     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1105     {
1106         i_vobu++;
1107     }
1108
1109     /* Find sub_cell */
1110     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1111            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1112     {
1113         i_sub_cell++;
1114     }
1115
1116 #if 1
1117     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1118              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1119              i_cell, i_sub_cell, i_chapter, i_vobu,
1120              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1121              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1122              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1123 #endif
1124
1125     p_sys->i_cur_block = i_block;
1126     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1127     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1128     p_sys->i_cur_cell = i_cell;
1129     p_sys->i_chapter = i_chapter;
1130     DvdReadFindCell( p_demux );
1131
1132 #undef p_vts
1133 #undef p_pgc
1134
1135     return;
1136 }
1137
1138 /*****************************************************************************
1139  * DvdReadHandleDSI
1140  *****************************************************************************/
1141 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1142 {
1143     demux_sys_t *p_sys = p_demux->p_sys;
1144
1145     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1146
1147     /*
1148      * Determine where we go next.  These values are the ones we mostly
1149      * care about.
1150      */
1151     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1152     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1153
1154     /*
1155      * Store the timecodes so we can get the current time
1156      */
1157     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1158     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1159
1160     /*
1161      * If we're not at the end of this cell, we can determine the next
1162      * VOBU to display using the VOBU_SRI information section of the
1163      * DSI.  Using this value correctly follows the current angle,
1164      * avoiding the doubled scenes in The Matrix, and makes our life
1165      * really happy.
1166      */
1167
1168     p_sys->i_next_vobu = p_sys->i_cur_block +
1169         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1170
1171     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1172         && p_sys->i_angle > 1 )
1173     {
1174         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1175         {
1176         case 0x4:
1177             /* Interleaved unit with no angle */
1178             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1179             {
1180                 p_sys->i_next_vobu = p_sys->i_cur_block +
1181                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1182                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1183             }
1184             else
1185             {
1186                 p_sys->i_next_vobu = p_sys->i_cur_block +
1187                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1188             }
1189             break;
1190         case 0x5:
1191             /* vobu is end of ilvu */
1192             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1193             {
1194                 p_sys->i_next_vobu = p_sys->i_cur_block +
1195                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1196                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1197
1198                 break;
1199             }
1200         case 0x6:
1201             /* vobu is beginning of ilvu */
1202         case 0x9:
1203             /* next scr is 0 */
1204         case 0xa:
1205             /* entering interleaved section */
1206         case 0x8:
1207             /* non interleaved cells in interleaved section */
1208         default:
1209             p_sys->i_next_vobu = p_sys->i_cur_block +
1210                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1211             break;
1212         }
1213     }
1214     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1215     {
1216         p_sys->i_cur_cell = p_sys->i_next_cell;
1217
1218         /* End of title */
1219         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1220
1221         DvdReadFindCell( p_demux );
1222
1223         p_sys->i_next_vobu =
1224             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1225
1226         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 );
1227     }
1228
1229
1230 #if 0
1231     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1232              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1233              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1234              p_sys->dsi_pack.dsi_gi.vobu_ea,
1235              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1236              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1237              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1238
1239     msg_Dbg( p_demux, "cell duration: %lld",
1240              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1241
1242     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1243              p_sys->dsi_pack.sml_pbi.category,
1244              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1245              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1246              p_sys->dsi_pack.sml_pbi.size );
1247
1248     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1249              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1250              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1251              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1252 #endif
1253 }
1254
1255 /*****************************************************************************
1256  * DvdReadFindCell
1257  *****************************************************************************/
1258 static void DvdReadFindCell( demux_t *p_demux )
1259 {
1260     demux_sys_t *p_sys = p_demux->p_sys;
1261
1262     pgc_t *p_pgc;
1263     int   pgc_id, pgn;
1264     int   i = 0;
1265
1266 #define cell p_sys->p_cur_pgc->cell_playback
1267
1268     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1269     {
1270         p_sys->i_cur_cell += p_sys->i_angle - 1;
1271
1272         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1273         {
1274             i++;
1275         }
1276         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1277     }
1278     else
1279     {
1280         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1281     }
1282
1283 #undef cell
1284
1285     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1286
1287     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1288                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1289     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1290               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1291     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1292
1293     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1294     {
1295         p_sys->i_chapter++;
1296
1297         if( p_sys->i_chapter < p_sys->i_chapters &&
1298             p_demux->info.i_seekpoint != p_sys->i_chapter )
1299         {
1300             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1301             p_demux->info.i_seekpoint = p_sys->i_chapter;
1302         }
1303     }
1304 }
1305
1306 /*****************************************************************************
1307  * DemuxTitles: get the titles/chapters structure
1308  *****************************************************************************/
1309 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1310 {
1311     VLC_UNUSED( pi_angle );
1312
1313     demux_sys_t *p_sys = p_demux->p_sys;
1314     input_title_t *t;
1315     seekpoint_t *s;
1316
1317     /* Find out number of titles/chapters */
1318 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1319
1320     int32_t i_titles = tt_srpt->nr_of_srpts;
1321     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1322
1323     for( int i = 0; i < i_titles; i++ )
1324     {
1325         int32_t i_chapters = 0;
1326         int j;
1327
1328         i_chapters = tt_srpt->title[i].nr_of_ptts;
1329         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1330
1331         t = vlc_input_title_New();
1332
1333         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1334         {
1335             s = vlc_seekpoint_New();
1336             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1337         }
1338
1339         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1340     }
1341
1342 #undef tt_srpt
1343 }