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