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

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2004 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdio.h>
  29 #include <stdlib.h>                                      /* malloc(), free() */
  30 #include <string.h>                                              /* strdup() */
  31
  32 #include <vlc/vlc.h>
  33 #include <vlc/input.h>
  34
  35 #include "iso_lang.h"
  36
  37 #include "../demux/ps.h"
  38
  39 #ifdef HAVE_UNISTD_H
  40 #   include <unistd.h>
  41 #endif
  42
  43 #include <fcntl.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <string.h>
  47
  48 #include <dvdread/dvd_reader.h>
  49 #include <dvdread/ifo_types.h>
  50 #include <dvdread/ifo_read.h>
  51 #include <dvdread/nav_read.h>
  52 #include <dvdread/nav_print.h>
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57 #define ANGLE_TEXT N_("DVD angle")
  58 #define ANGLE_LONGTEXT N_( \
  59     "Allows you to select the default DVD angle." )
  60
  61 #define CACHING_TEXT N_("Caching value in ms")
  62 #define CACHING_LONGTEXT N_( \
  63     "Allows you to modify the default caching value for DVDread streams. " \
  64     "This value should be set in millisecond units." )
  65
  66 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  67 #define CSSMETHOD_LONGTEXT N_( \
  68     "Set the method used by libdvdcss for key decryption.\n" \
  69     "title: decrypted title key is guessed from the encrypted sectors of " \
  70            "the stream. Thus it should work with a file as well as the " \
  71            "DVD device. But it sometimes takes much time to decrypt a title " \
  72            "key and may even fail. With this method, the key is only checked "\
  73            "at the beginning of each title, so it won't work if the key " \
  74            "changes in the middle of a title.\n" \
  75     "disc: the disc key is first cracked, then all title keys can be " \
  76            "decrypted instantly, which allows us to check them often.\n" \
  77     "key: the same as \"disc\" if you don't have a file with player keys " \
  78            "at compilation time. If you do, the decryption of the disc key " \
  79            "will be faster with this method. It is the one that was used by " \
  80            "libcss.\n" \
  81     "The default method is: key.")
  82
  83 static char *psz_css_list[] = { "title", "disc", "key" };
  84 static char *psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
  85
  86 static int  Open ( vlc_object_t * );
  87 static void Close( vlc_object_t * );
  88
  89 vlc_module_begin();
  90     set_shortname( _("DVD without menus") );
  91     set_description( _("DVDRead Input (DVD without menu support)") );
  92     set_category( CAT_INPUT );
  93     set_subcategory( SUBCAT_INPUT_ACCESS );
  94     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
  95         ANGLE_LONGTEXT, VLC_FALSE );
  96     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
  97         CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
  98     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
  99                 CSSMETHOD_LONGTEXT, VLC_TRUE );
 100         change_string_list( psz_css_list, psz_css_list_text, 0 );
 101     set_capability( "access_demux", 0 );
 102     add_shortcut( "dvd" );
 103     add_shortcut( "dvdread" );
 104     add_shortcut( "dvdsimple" );
 105     set_callbacks( Open, Close );
 106 vlc_module_end();
 107
 108 /* how many blocks DVDRead will read in each loop */
 109 #define DVD_BLOCK_READ_ONCE 4
 110
 111 /*****************************************************************************
 112  * Local prototypes
 113  *****************************************************************************/
 114
 115 struct demux_sys_t
 116 {
 117     /* DVDRead state */
 118     dvd_reader_t *p_dvdread;
 119     dvd_file_t   *p_title;
 120
 121     ifo_handle_t *p_vmg_file;
 122     ifo_handle_t *p_vts_file;
 123
 124     int i_title;
 125     int i_chapter, i_chapters;
 126     int i_angle, i_angles;
 127
 128     tt_srpt_t    *p_tt_srpt;
 129     pgc_t        *p_cur_pgc;
 130     dsi_t        dsi_pack;
 131     int          i_ttn;
 132
 133     int i_pack_len;
 134     int i_cur_block;
 135     int i_next_vobu;
 136
 137     /* Current title start/end blocks */
 138     int i_title_start_block;
 139     int i_title_end_block;
 140     int i_title_blocks;
 141     int i_title_offset;
 142     mtime_t i_title_cur_time;
 143
 144     int i_title_start_cell;
 145     int i_title_end_cell;
 146     int i_cur_cell;
 147     int i_next_cell;
 148     mtime_t i_cell_cur_time;
 149     mtime_t i_cell_duration;
 150
 151     /* Track */
 152     ps_track_t    tk[PS_TK_COUNT];
 153
 154     int           i_titles;
 155     input_title_t **titles;
 156
 157     /* Video */
 158     int i_aspect;
 159
 160     /* SPU */
 161     uint32_t clut[16];
 162 };
 163
 164 static int Control   ( demux_t *, int, va_list );
 165 static int Demux     ( demux_t * );
 166 static int DemuxBlock( demux_t *, uint8_t *, int );
 167
 168 static void DemuxTitles( demux_t *, int * );
 169 static void ESNew( demux_t *, int, int );
 170
 171 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 172 static void DvdReadSeek     ( demux_t *, int );
 173 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 174 static void DvdReadFindCell ( demux_t * );
 175
 176 /*****************************************************************************
 177  * Open:
 178  *****************************************************************************/
 179 static int Open( vlc_object_t *p_this )
 180 {
 181     demux_t      *p_demux = (demux_t*)p_this;
 182     demux_sys_t  *p_sys;
 183     char         *psz_name;
 184     char         *psz_dvdcss_env;
 185     dvd_reader_t *p_dvdread;
 186     ifo_handle_t *p_vmg_file;
 187     vlc_value_t  val;
 188
 189     if( !p_demux->psz_path || !*p_demux->psz_path )
 190     {
 191         /* Only when selected */
 192         if( !p_this->b_force ) return VLC_EGENERIC;
 193
 194         psz_name = var_CreateGetString( p_this, "dvd" );
 195         if( !psz_name || !*psz_name )
 196         {
 197             if( psz_name ) free( psz_name );
 198             return VLC_EGENERIC;
 199         }
 200     }
 201     else psz_name = strdup( p_demux->psz_path );
 202
 203 #ifdef WIN32
 204     if( psz_name[0] && psz_name[1] == ':' &&
 205         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 206 #endif
 207
 208     /* Override environment variable DVDCSS_METHOD with config option
 209      * (FIXME: this creates a small memory leak) */
 210     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 211     if( psz_dvdcss_env && *psz_dvdcss_env )
 212     {
 213         char *psz_env;
 214
 215         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 216                           strlen( psz_dvdcss_env ) + 1 );
 217         if( !psz_env )
 218         {
 219             free( psz_dvdcss_env );
 220             return VLC_ENOMEM;
 221         }
 222
 223         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 224
 225         putenv( psz_env );
 226     }
 227     if( psz_dvdcss_env ) free( psz_dvdcss_env );
 228
 229     /* Open dvdread */
 230     if( !(p_dvdread = DVDOpen( psz_name )) )
 231     {
 232         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 233         free( psz_name );
 234         return VLC_EGENERIC;
 235     }
 236     free( psz_name );
 237
 238     /* Ifo allocation & initialisation */
 239     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 240     {
 241         msg_Warn( p_demux, "cannot open VMG info" );
 242         return VLC_EGENERIC;
 243     }
 244     msg_Dbg( p_demux, "VMG opened" );
 245
 246     /* Fill p_demux field */
 247     p_demux->pf_demux = Demux;
 248     p_demux->pf_control = Control;
 249     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
 250     memset( p_sys, 0, sizeof( demux_sys_t ) );
 251
 252     ps_track_init( p_sys->tk );
 253     p_sys->i_aspect = -1;
 254     p_sys->i_title_cur_time = (mtime_t) 0;
 255     p_sys->i_cell_cur_time = (mtime_t) 0;
 256     p_sys->i_cell_duration = (mtime_t) 0;
 257
 258     p_sys->p_dvdread = p_dvdread;
 259     p_sys->p_vmg_file = p_vmg_file;
 260     p_sys->p_title = NULL;
 261     p_sys->p_vts_file = NULL;
 262
 263     p_sys->i_title = p_sys->i_chapter = -1;
 264
 265     var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 266     var_Get( p_demux, "dvdread-angle", &val );
 267     p_sys->i_angle = val.i_int > 0 ? val.i_int : 1;
 268
 269     DemuxTitles( p_demux, &p_sys->i_angle );
 270     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 271     {
 272         Close( p_this );
 273         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 274                  p_sys->i_angle );
 275         return VLC_EGENERIC;
 276     }
 277
 278     /* Update default_pts to a suitable value for dvdread access */
 279     var_Create( p_demux, "dvdread-caching",
 280                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 281
 282     return VLC_SUCCESS;
 283 }
 284
 285 /*****************************************************************************
 286  * Close:
 287  *****************************************************************************/
 288 static void Close( vlc_object_t *p_this )
 289 {
 290     demux_t     *p_demux = (demux_t*)p_this;
 291     demux_sys_t *p_sys = p_demux->p_sys;
 292     int i;
 293
 294     for( i = 0; i < PS_TK_COUNT; i++ )
 295     {
 296         ps_track_t *tk = &p_sys->tk[i];
 297         if( tk->b_seen )
 298         {
 299             es_format_Clean( &tk->fmt );
 300             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 301         }
 302     }
 303
 304     /* Close libdvdread */
 305     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 306     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 307     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 308     DVDClose( p_sys->p_dvdread );
 309
 310     free( p_sys );
 311 }
 312
 313 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 314 {
 315 /* Macro to convert Binary Coded Decimal to Decimal */
 316 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 317
 318     double f_fps, f_ms;
 319     int64_t i_micro_second = 0;
 320
 321     if (still_time == 0 || still_time == 0xFF)
 322     {
 323         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 324         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 325         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 326
 327         switch((dtime->frame_u & 0xc0) >> 6)
 328         {
 329         case 1:
 330             f_fps = 25.0;
 331             break;
 332         case 3:
 333             f_fps = 29.97;
 334             break;
 335         default:
 336             f_fps = 2500.0;
 337             break;
 338         }
 339         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 340         i_micro_second += (int64_t)(f_ms * 1000.0);
 341     }
 342     else
 343     {
 344         i_micro_second = still_time;
 345         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 346     }
 347
 348     return i_micro_second;
 349 }
 350
 351 /*****************************************************************************
 352  * Control:
 353  *****************************************************************************/
 354 static int Control( demux_t *p_demux, int i_query, va_list args )
 355 {
 356     demux_sys_t *p_sys = p_demux->p_sys;
 357     double f, *pf;
 358     vlc_bool_t *pb;
 359     int64_t *pi64;
 360     input_title_t ***ppp_title;
 361     int *pi_int;
 362     int i;
 363
 364     switch( i_query )
 365     {
 366         case DEMUX_GET_POSITION:
 367         {
 368             pf = (double*) va_arg( args, double* );
 369
 370             if( p_sys->i_title_blocks > 0 )
 371                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 372             else
 373                 *pf = 0.0;
 374
 375             return VLC_SUCCESS;
 376         }
 377         case DEMUX_SET_POSITION:
 378         {
 379             f = (double)va_arg( args, double );
 380
 381             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 382
 383             return VLC_SUCCESS;
 384         }
 385         case DEMUX_GET_TIME:
 386             pi64 = (int64_t*)va_arg( args, int64_t * );
 387             if( p_sys->i_title_cur_time > 0 )
 388             {
 389                 *pi64 = (int64_t)p_sys->i_title_cur_time;
 390                 return VLC_SUCCESS;
 391             }
 392             *pi64 = 0;
 393             return VLC_EGENERIC;
 394
 395         case DEMUX_GET_LENGTH:
 396             pi64 = (int64_t*)va_arg( args, int64_t * );
 397             if (p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles)
 398             {
 399                 *pi64 = dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 400                 return VLC_SUCCESS;
 401             }
 402             *pi64 = 0;
 403             return VLC_EGENERIC;
 404
 405         /* Special for access_demux */
 406         case DEMUX_CAN_PAUSE:
 407         case DEMUX_CAN_CONTROL_PACE:
 408             /* TODO */
 409             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 410             *pb = VLC_TRUE;
 411             return VLC_SUCCESS;
 412
 413         case DEMUX_SET_PAUSE_STATE:
 414             return VLC_SUCCESS;
 415
 416         case DEMUX_GET_TITLE_INFO:
 417             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 418             pi_int    = (int*)va_arg( args, int* );
 419             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 420             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 421
 422             /* Duplicate title infos */
 423             *pi_int = p_sys->i_titles;
 424             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 425             for( i = 0; i < p_sys->i_titles; i++ )
 426             {
 427                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 428             }
 429             return VLC_SUCCESS;
 430
 431         case DEMUX_SET_TITLE:
 432             i = (int)va_arg( args, int );
 433             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 434             {
 435                 msg_Warn( p_demux, "cannot set title/chapter" );
 436                 return VLC_EGENERIC;
 437             }
 438             p_demux->info.i_update |=
 439                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 440             p_demux->info.i_title = i;
 441             p_demux->info.i_seekpoint = 0;
 442             return VLC_SUCCESS;
 443
 444         case DEMUX_SET_SEEKPOINT:
 445             i = (int)va_arg( args, int );
 446             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 447             {
 448                 msg_Warn( p_demux, "cannot set title/chapter" );
 449                 return VLC_EGENERIC;
 450             }
 451             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 452             p_demux->info.i_seekpoint = i;
 453             return VLC_SUCCESS;
 454
 455         case DEMUX_GET_PTS_DELAY:
 456             pi64 = (int64_t*)va_arg( args, int64_t * );
 457             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 458             return VLC_SUCCESS;
 459
 460         /* TODO implement others */
 461         default:
 462             return VLC_EGENERIC;
 463     }
 464 }
 465
 466 /*****************************************************************************
 467  * Demux:
 468  *****************************************************************************/
 469 static int Demux( demux_t *p_demux )
 470 {
 471     demux_sys_t *p_sys = p_demux->p_sys;
 472
 473     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 474     int i_blocks_once, i_read;
 475     int i;
 476
 477     /*
 478      * Playback by cell in this pgc, starting at the cell for our chapter.
 479      */
 480
 481     /*
 482      * Check end of pack, and select the following one
 483      */
 484     if( !p_sys->i_pack_len )
 485     {
 486         /* Read NAV packet */
 487         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 488                            1, p_buffer ) != 1 )
 489         {
 490             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 491             return -1;
 492         }
 493
 494         /* Basic check to be sure we don't have a empty title
 495          * go to next title if so */
 496         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 497
 498         /* Parse the contained dsi packet */
 499         DvdReadHandleDSI( p_demux, p_buffer );
 500
 501         /* End of title */
 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         if( p_sys->i_pack_len >= 1024 )
 513         {
 514             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 515                      "This shouldn't happen!", p_sys->i_pack_len );
 516             return 0; /* EOF */
 517         }
 518
 519         /* FIXME: Ugly kludge: we send the pack block to the input for it
 520          * sometimes has a zero scr and restart the sync */
 521         p_sys->i_cur_block++;
 522         p_sys->i_title_offset++;
 523
 524         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 525     }
 526
 527     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 528     {
 529         if( p_sys->i_title + 1 >= p_sys->i_titles )
 530         {
 531             return 0; /* EOF */
 532         }
 533
 534         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 535     }
 536
 537     /*
 538      * Read actual data
 539      */
 540     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 541     p_sys->i_pack_len -= i_blocks_once;
 542
 543     /* Reads from DVD */
 544     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 545                             i_blocks_once, p_buffer );
 546     if( i_read != i_blocks_once )
 547     {
 548         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 549                  i_read, i_blocks_once, p_sys->i_cur_block );
 550         return -1;
 551     }
 552
 553     p_sys->i_cur_block += i_read;
 554     p_sys->i_title_offset += i_read;
 555
 556 #if 0
 557     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 558              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 559 #endif
 560
 561     for( i = 0; i < i_read; i++ )
 562     {
 563         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 564                     DVD_VIDEO_LB_LEN );
 565     }
 566
 567 #undef p_pgc
 568
 569     return 1;
 570 }
 571
 572 /*****************************************************************************
 573  * DemuxBlock: demux a given block
 574  *****************************************************************************/
 575 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 576 {
 577     demux_sys_t *p_sys = p_demux->p_sys;
 578     uint8_t     *p = pkt;
 579
 580     while( p < &pkt[i_pkt] )
 581     {
 582         int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
 583         block_t *p_pkt;
 584         if( i_size <= 0 )
 585         {
 586             break;
 587         }
 588
 589         /* Create a block */
 590         p_pkt = block_New( p_demux, i_size );
 591         memcpy( p_pkt->p_buffer, p, i_size);
 592
 593         /* Parse it and send it */
 594         switch( 0x100 | p[3] )
 595         {
 596         case 0x1b9:
 597         case 0x1bb:
 598         case 0x1bc:
 599
 600 #ifdef DVDREAD_DEBUG
 601             if( p[3] == 0xbc )
 602             {
 603                 msg_Warn( p_demux, "received a PSM packet" );
 604             }
 605             else if( p[3] == 0xbb )
 606             {
 607                 msg_Warn( p_demux, "received a SYSTEM packet" );
 608             }
 609 #endif
 610             block_Release( p_pkt );
 611             break;
 612
 613         case 0x1ba:
 614         {
 615             int64_t i_scr;
 616             int i_mux_rate;
 617             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 618             {
 619                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 620             }
 621             block_Release( p_pkt );
 622             break;
 623         }
 624         default:
 625         {
 626             int i_id = ps_pkt_id( p_pkt );
 627             if( i_id >= 0xc0 )
 628             {
 629                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 630
 631                 if( !tk->b_seen )
 632                 {
 633                     ESNew( p_demux, i_id, 0 );
 634                 }
 635                 if( tk->b_seen && tk->es &&
 636                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 637                 {
 638                     es_out_Send( p_demux->out, tk->es, p_pkt );
 639                 }
 640                 else
 641                 {
 642                     block_Release( p_pkt );
 643                 }
 644             }
 645             else
 646             {
 647                 block_Release( p_pkt );
 648             }
 649             break;
 650         }
 651         }
 652
 653         p += i_size;
 654     }
 655
 656     return VLC_SUCCESS;
 657 }
 658
 659 /*****************************************************************************
 660  * ESNew: register a new elementary stream
 661  *****************************************************************************/
 662 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 663 {
 664     demux_sys_t *p_sys = p_demux->p_sys;
 665     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 666     char psz_language[3];
 667
 668     if( tk->b_seen ) return;
 669
 670     if( ps_track_fill( tk, 0, i_id ) )
 671     {
 672         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 673         return;
 674     }
 675
 676     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 677     if( i_lang && i_lang != 0xffff )
 678     {
 679         psz_language[0] = (i_lang >> 8)&0xff;
 680         psz_language[1] = (i_lang     )&0xff;
 681     }
 682
 683     /* Add a new ES */
 684     if( tk->fmt.i_cat == VIDEO_ES )
 685     {
 686         if( p_sys->i_aspect >= 0 )
 687         {
 688             tk->fmt.video.i_aspect = p_sys->i_aspect;
 689         }
 690     }
 691     else if( tk->fmt.i_cat == AUDIO_ES )
 692     {
 693         int i_audio = -1;
 694         /* find the audio number PLEASE find another way */
 695         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 696         {
 697             i_audio = i_id&0x07;
 698         }
 699         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 700         {
 701             i_audio = i_id&0xf;
 702         }
 703         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 704         {
 705             i_audio = i_id&0x1f;
 706         }
 707         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 708         {
 709             i_audio = i_id&0x1f;
 710         }
 711
 712         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 713     }
 714     else if( tk->fmt.i_cat == SPU_ES )
 715     {
 716         /* Palette */
 717         tk->fmt.subs.spu.palette[0] = 0xBeef;
 718         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 719                 16 * sizeof( uint32_t ) );
 720
 721         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 722     }
 723
 724     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 725     tk->b_seen = VLC_TRUE;
 726 }
 727
 728 /*****************************************************************************
 729  * DvdReadSetArea: initialize input data for title x, chapter y.
 730  * It should be called for each user navigation request.
 731  *****************************************************************************
 732  * Take care that i_title and i_chapter start from 0.
 733  *****************************************************************************/
 734 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 735                            int i_angle )
 736 {
 737     demux_sys_t *p_sys = p_demux->p_sys;
 738     int pgc_id = 0, pgn = 0;
 739     int i;
 740
 741 #define p_pgc p_sys->p_cur_pgc
 742 #define p_vmg p_sys->p_vmg_file
 743 #define p_vts p_sys->p_vts_file
 744
 745     if( i_title >= 0 && i_title < p_sys->i_titles &&
 746         i_title != p_sys->i_title )
 747     {
 748         int i_start_cell, i_end_cell;
 749
 750         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 751         if( p_vts != NULL ) ifoClose( p_vts );
 752         p_sys->i_title = i_title;
 753
 754         /*
 755          *  We have to load all title information
 756          */
 757         msg_Dbg( p_demux, "open VTS %d, for title %d",
 758                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 759
 760         /* Ifo vts */
 761         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 762                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 763         {
 764             msg_Err( p_demux, "fatal error in vts ifo" );
 765             return VLC_EGENERIC;
 766         }
 767
 768         /* Title position inside the selected vts */
 769         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 770
 771         /* Find title start/end */
 772         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 773         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 774         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 775
 776         p_sys->i_title_start_cell =
 777             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 778         p_sys->i_title_start_block =
 779             p_pgc->cell_playback[i_start_cell].first_sector;
 780
 781         p_sys->i_title_end_cell =
 782             i_end_cell = p_pgc->nr_of_cells - 1;
 783         p_sys->i_title_end_block =
 784             p_pgc->cell_playback[i_end_cell].last_sector;
 785
 786         p_sys->i_title_offset = 0;
 787
 788         p_sys->i_title_blocks = 0;
 789         for( i = i_start_cell; i <= i_end_cell; i++ )
 790         {
 791             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 792                 p_pgc->cell_playback[i].first_sector + 1;
 793         }
 794
 795         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 796                  "start %d end %d blocks: %d",
 797                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 798                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 799                  p_sys->i_title_blocks );
 800
 801         /*
 802          * Set properties for current chapter
 803          */
 804         p_sys->i_chapter = 0;
 805         p_sys->i_chapters =
 806             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 807
 808         pgc_id = p_vts->vts_ptt_srpt->title[
 809                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 810         pgn = p_vts->vts_ptt_srpt->title[
 811                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 812
 813         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 814         p_sys->i_pack_len = 0;
 815         p_sys->i_next_cell =
 816             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 817         DvdReadFindCell( p_demux );
 818
 819         p_sys->i_next_vobu = p_sys->i_cur_block =
 820             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 821
 822         /*
 823          * Angle management
 824          */
 825         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 826         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 827
 828         /*
 829          * We've got enough info, time to open the title set data.
 830          */
 831         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 832             p_vmg->tt_srpt->title[i_title].title_set_nr,
 833             DVD_READ_TITLE_VOBS ) ) )
 834         {
 835             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 836                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 837             return VLC_EGENERIC;
 838         }
 839
 840         //IfoPrintTitle( p_demux );
 841
 842         /*
 843          * Destroy obsolete ES by reinitializing program 0
 844          * and find all ES in title with ifo data
 845          */
 846         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 847
 848         for( i = 0; i < PS_TK_COUNT; i++ )
 849         {
 850             ps_track_t *tk = &p_sys->tk[i];
 851             if( tk->b_seen )
 852             {
 853                 es_format_Clean( &tk->fmt );
 854                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 855             }
 856             tk->b_seen = VLC_FALSE;
 857         }
 858
 859         if( p_demux->info.i_title != i_title )
 860         {
 861             p_demux->info.i_update |=
 862                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 863             p_demux->info.i_title = i_title;
 864             p_demux->info.i_seekpoint = 0;
 865         }
 866
 867         /* TODO: re-add angles */
 868
 869
 870         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 871         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 872
 873 #define audio_control \
 874     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 875
 876         /* Audio ES, in the order they appear in the .ifo */
 877         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 878         {
 879             int i_position = 0;
 880             uint16_t i_id;
 881
 882             //IfoPrintAudio( p_demux, i );
 883
 884             /* Audio channel is active if first byte is 0x80 */
 885             if( audio_control & 0x8000 )
 886             {
 887                 i_position = ( audio_control & 0x7F00 ) >> 8;
 888
 889                 msg_Dbg( p_demux, "audio position  %d", i_position );
 890                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 891                 {
 892                 case 0x00: /* A52 */
 893                     i_id = (0x80 + i_position) | 0xbd00;
 894                     break;
 895                 case 0x02:
 896                 case 0x03: /* MPEG audio */
 897                     i_id = 0xc000 + i_position;
 898                     break;
 899                 case 0x04: /* LPCM */
 900                     i_id = (0xa0 + i_position) | 0xbd00;
 901                     break;
 902                 case 0x06: /* DTS */
 903                     i_id = (0x88 + i_position) | 0xbd00;
 904                     break;
 905                 default:
 906                     i_id = 0;
 907                     msg_Err( p_demux, "unknown audio type %.2x",
 908                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 909                 }
 910
 911                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 912                        vts_audio_attr[i - 1].lang_code );
 913             }
 914         }
 915 #undef audio_control
 916
 917 #define spu_palette \
 918     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 919
 920         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 921
 922 #define spu_control \
 923     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 924
 925         /* Sub Picture ES */
 926         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 927         {
 928             int i_position = 0;
 929             uint16_t i_id;
 930
 931             //IfoPrintSpu( p_sys, i );
 932             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 933
 934             if( spu_control & 0x80000000 )
 935             {
 936                 /*  there are several streams for one spu */
 937                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 938                 {
 939                     /* 16:9 */
 940                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 941                     {
 942                     case 1: /* letterbox */
 943                         i_position = spu_control & 0xff;
 944                         break;
 945                     case 2: /* pan&scan */
 946                         i_position = ( spu_control >> 8 ) & 0xff;
 947                         break;
 948                     default: /* widescreen */
 949                         i_position = ( spu_control >> 16 ) & 0xff;
 950                         break;
 951                     }
 952                 }
 953                 else
 954                 {
 955                     /* 4:3 */
 956                     i_position = ( spu_control >> 24 ) & 0x7F;
 957                 }
 958
 959                 i_id = (0x20 + i_position) | 0xbd00;
 960
 961                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 962                        vts_subp_attr[i - 1].lang_code );
 963             }
 964         }
 965 #undef spu_control
 966
 967     }
 968     else if( i_title != -1 && i_title != p_sys->i_title )
 969
 970     {
 971         return VLC_EGENERIC; /* Couldn't set title */
 972     }
 973
 974     /*
 975      * Chapter selection
 976      */
 977
 978     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 979     {
 980         pgc_id = p_vts->vts_ptt_srpt->title[
 981                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
 982         pgn = p_vts->vts_ptt_srpt->title[
 983                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
 984
 985         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 986
 987         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 988         p_sys->i_chapter = i_chapter;
 989         DvdReadFindCell( p_demux );
 990
 991         p_sys->i_title_offset = 0;
 992         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
 993         {
 994             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
 995                 p_pgc->cell_playback[i].first_sector + 1;
 996         }
 997
 998         p_sys->i_pack_len = 0;
 999         p_sys->i_next_vobu = p_sys->i_cur_block =
1000             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1001
1002         if( p_demux->info.i_seekpoint != i_chapter )
1003         {
1004             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1005             p_demux->info.i_seekpoint = i_chapter;
1006         }
1007     }
1008     else if( i_chapter != -1 )
1009
1010     {
1011         return VLC_EGENERIC; /* Couldn't set chapter */
1012     }
1013
1014 #undef p_pgc
1015 #undef p_vts
1016 #undef p_vmg
1017
1018     return VLC_SUCCESS;
1019 }
1020
1021 /*****************************************************************************
1022  * DvdReadSeek : Goes to a given position on the stream.
1023  *****************************************************************************
1024  * This one is used by the input and translate chronological position from
1025  * input to logical position on the device.
1026  *****************************************************************************/
1027 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1028 {
1029     demux_sys_t *p_sys = p_demux->p_sys;
1030     int i_chapter = 0;
1031     int i_cell = 0;
1032     int i_vobu = 0;
1033     int i_sub_cell = 0;
1034     int i_block;
1035
1036 #define p_pgc p_sys->p_cur_pgc
1037 #define p_vts p_sys->p_vts_file
1038
1039     /* Find cell */
1040     i_block = i_block_offset;
1041     for( i_cell = p_sys->i_title_start_cell;
1042          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1043     {
1044         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1045             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1046
1047         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1048             p_pgc->cell_playback[i_cell].first_sector + 1);
1049     }
1050     if( i_cell > p_sys->i_title_end_cell )
1051     {
1052         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1053         return;
1054     }
1055     i_block += p_pgc->cell_playback[i_cell].first_sector;
1056     p_sys->i_title_offset = i_block_offset;
1057
1058     /* Find chapter */
1059     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1060     {
1061         int pgc_id, pgn, i_tmp;
1062
1063         pgc_id = p_vts->vts_ptt_srpt->title[
1064                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1065         pgn = p_vts->vts_ptt_srpt->title[
1066                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1067
1068         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1069
1070         if( i_tmp > i_cell ) break;
1071     }
1072
1073     if( i_chapter < p_sys->i_chapters &&
1074         p_demux->info.i_seekpoint != i_chapter )
1075     {
1076         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1077         p_demux->info.i_seekpoint = i_chapter;
1078     }
1079
1080     /* Find vobu */
1081     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1082     {
1083         i_vobu++;
1084     }
1085
1086     /* Find sub_cell */
1087     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1088            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1089     {
1090         i_sub_cell++;
1091     }
1092
1093 #if 1
1094     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1095              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1096              i_cell, i_sub_cell, i_chapter, i_vobu,
1097              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1098              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1099              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1100 #endif
1101
1102     p_sys->i_cur_block = i_block;
1103     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1104     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1105     p_sys->i_cur_cell = i_cell;
1106     p_sys->i_chapter = i_chapter;
1107     DvdReadFindCell( p_demux );
1108
1109 #undef p_vts
1110 #undef p_pgc
1111
1112     return;
1113 }
1114
1115 /*****************************************************************************
1116  * DvdReadHandleDSI
1117  *****************************************************************************/
1118 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1119 {
1120     demux_sys_t *p_sys = p_demux->p_sys;
1121
1122     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1123
1124     /*
1125      * Determine where we go next.  These values are the ones we mostly
1126      * care about.
1127      */
1128     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1129     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1130
1131     /*
1132      * Store the timecodes so we can get the current time
1133      */
1134     p_sys->i_title_cur_time = (mtime_t) p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000;
1135     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1136
1137     /*
1138      * If we're not at the end of this cell, we can determine the next
1139      * VOBU to display using the VOBU_SRI information section of the
1140      * DSI.  Using this value correctly follows the current angle,
1141      * avoiding the doubled scenes in The Matrix, and makes our life
1142      * really happy.
1143      */
1144
1145     p_sys->i_next_vobu = p_sys->i_cur_block +
1146         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1147
1148     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1149         && p_sys->i_angle > 1 )
1150     {
1151         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1152         {
1153         case 0x4:
1154             /* Interleaved unit with no angle */
1155             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1156             {
1157                 p_sys->i_next_vobu = p_sys->i_cur_block +
1158                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1159                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1160             }
1161             else
1162             {
1163                 p_sys->i_next_vobu = p_sys->i_cur_block +
1164                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1165             }
1166             break;
1167         case 0x5:
1168             /* vobu is end of ilvu */
1169             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1170             {
1171                 p_sys->i_next_vobu = p_sys->i_cur_block +
1172                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1173                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1174
1175                 break;
1176             }
1177         case 0x6:
1178             /* vobu is beginning of ilvu */
1179         case 0x9:
1180             /* next scr is 0 */
1181         case 0xa:
1182             /* entering interleaved section */
1183         case 0x8:
1184             /* non interleaved cells in interleaved section */
1185         default:
1186             p_sys->i_next_vobu = p_sys->i_cur_block +
1187                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1188             break;
1189         }
1190     }
1191     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1192     {
1193         p_sys->i_cur_cell = p_sys->i_next_cell;
1194
1195         /* End of title */
1196         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1197
1198         DvdReadFindCell( p_demux );
1199
1200         p_sys->i_next_vobu =
1201             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1202
1203         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 );
1204     }
1205
1206
1207 #if 0
1208     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1209              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1210              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1211              p_sys->dsi_pack.dsi_gi.vobu_ea,
1212              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1213              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1214              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1215
1216     msg_Dbg( p_demux, "cell duration: %lld",
1217              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1218
1219     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1220              p_sys->dsi_pack.sml_pbi.category,
1221              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1222              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1223              p_sys->dsi_pack.sml_pbi.size );
1224
1225     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1226              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1227              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1228              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1229 #endif
1230 }
1231
1232 /*****************************************************************************
1233  * DvdReadFindCell
1234  *****************************************************************************/
1235 static void DvdReadFindCell( demux_t *p_demux )
1236 {
1237     demux_sys_t *p_sys = p_demux->p_sys;
1238
1239     pgc_t *p_pgc;
1240     int   pgc_id, pgn;
1241     int   i = 0;
1242
1243 #define cell p_sys->p_cur_pgc->cell_playback
1244
1245     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1246     {
1247         p_sys->i_cur_cell += p_sys->i_angle - 1;
1248
1249         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1250         {
1251             i++;
1252         }
1253         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1254     }
1255     else
1256     {
1257         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1258     }
1259
1260 #undef cell
1261
1262     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1263
1264     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1265                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1266     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1267               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1268     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1269
1270     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1271     {
1272         p_sys->i_chapter++;
1273
1274         if( p_sys->i_chapter < p_sys->i_chapters &&
1275             p_demux->info.i_seekpoint != p_sys->i_chapter )
1276         {
1277             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1278             p_demux->info.i_seekpoint = p_sys->i_chapter;
1279         }
1280     }
1281 }
1282
1283 /*****************************************************************************
1284  * DemuxTitles: get the titles/chapters structure
1285  *****************************************************************************/
1286 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1287 {
1288     demux_sys_t *p_sys = p_demux->p_sys;
1289     input_title_t *t;
1290     seekpoint_t *s;
1291     int32_t i_titles;
1292     int i;
1293
1294     /* Find out number of titles/chapters */
1295 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1296
1297     i_titles = tt_srpt->nr_of_srpts;
1298     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1299
1300     for( i = 0; i < i_titles; i++ )
1301     {
1302         int32_t i_chapters = 0;
1303         int j;
1304
1305         i_chapters = tt_srpt->title[i].nr_of_ptts;
1306         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1307
1308         t = vlc_input_title_New();
1309
1310         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1311         {
1312             s = vlc_seekpoint_New();
1313             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1314         }
1315
1316         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1317     }
1318
1319 #undef tt_srpt
1320 }