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