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

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_input.h>
  36 #include <vlc_access.h>
  37 #include <vlc_charset.h>
  38
  39 #include <vlc_interface.h>
  40
  41 #include <vlc_iso_lang.h>
  42
  43 #include "../demux/ps.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #   include <unistd.h>
  47 #endif
  48
  49 #include <fcntl.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52
  53 #include <dvdread/dvd_reader.h>
  54 #include <dvdread/ifo_types.h>
  55 #include <dvdread/ifo_read.h>
  56 #include <dvdread/nav_read.h>
  57 #include <dvdread/nav_print.h>
  58
  59 #include <assert.h>
  60
  61 /*****************************************************************************
  62  * Module descriptor
  63  *****************************************************************************/
  64 #define ANGLE_TEXT N_("DVD angle")
  65 #define ANGLE_LONGTEXT N_( \
  66     "Default DVD angle." )
  67
  68 #define CACHING_TEXT N_("Caching value in ms")
  69 #define CACHING_LONGTEXT N_( \
  70     "Caching value for DVDs. " \
  71     "This value should be set in milliseconds." )
  72
  73 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  74 #define CSSMETHOD_LONGTEXT N_( \
  75     "Set the method used by libdvdcss for key decryption.\n" \
  76     "title: decrypted title key is guessed from the encrypted sectors of " \
  77            "the stream. Thus it should work with a file as well as the " \
  78            "DVD device. But it sometimes takes much time to decrypt a title " \
  79            "key and may even fail. With this method, the key is only checked "\
  80            "at the beginning of each title, so it won't work if the key " \
  81            "changes in the middle of a title.\n" \
  82     "disc: the disc key is first cracked, then all title keys can be " \
  83            "decrypted instantly, which allows us to check them often.\n" \
  84     "key: the same as \"disc\" if you don't have a file with player keys " \
  85            "at compilation time. If you do, the decryption of the disc key " \
  86            "will be faster with this method. It is the one that was used by " \
  87            "libcss.\n" \
  88     "The default method is: key.")
  89
  90 static const char *psz_css_list[] = { "title", "disc", "key" };
  91 static const char *psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
  92
  93 static int  Open ( vlc_object_t * );
  94 static void Close( vlc_object_t * );
  95
  96 vlc_module_begin();
  97     set_shortname( N_("DVD without menus") );
  98     set_description( N_("DVDRead Input (DVD without menu support)") );
  99     set_category( CAT_INPUT );
 100     set_subcategory( SUBCAT_INPUT_ACCESS );
 101     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
 102         ANGLE_LONGTEXT, false );
 103     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
 104         CACHING_TEXT, CACHING_LONGTEXT, true );
 105     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
 106                 CSSMETHOD_LONGTEXT, true );
 107         change_string_list( psz_css_list, psz_css_list_text, 0 );
 108     set_capability( "access_demux", 0 );
 109     add_shortcut( "dvd" );
 110     add_shortcut( "dvdread" );
 111     add_shortcut( "dvdsimple" );
 112     set_callbacks( Open, Close );
 113 vlc_module_end();
 114
 115 /* how many blocks DVDRead will read in each loop */
 116 #define DVD_BLOCK_READ_ONCE 4
 117
 118 /*****************************************************************************
 119  * Local prototypes
 120  *****************************************************************************/
 121
 122 struct demux_sys_t
 123 {
 124     /* DVDRead state */
 125     dvd_reader_t *p_dvdread;
 126     dvd_file_t   *p_title;
 127
 128     ifo_handle_t *p_vmg_file;
 129     ifo_handle_t *p_vts_file;
 130
 131     int i_title;
 132     int i_chapter, i_chapters;
 133     int i_angle, i_angles;
 134
 135     tt_srpt_t    *p_tt_srpt;
 136     pgc_t        *p_cur_pgc;
 137     dsi_t        dsi_pack;
 138     int          i_ttn;
 139
 140     int i_pack_len;
 141     int i_cur_block;
 142     int i_next_vobu;
 143
 144     int i_mux_rate;
 145
 146     /* Current title start/end blocks */
 147     int i_title_start_block;
 148     int i_title_end_block;
 149     int i_title_blocks;
 150     int i_title_offset;
 151     mtime_t i_title_cur_time;
 152
 153     int i_title_start_cell;
 154     int i_title_end_cell;
 155     int i_cur_cell;
 156     int i_next_cell;
 157     mtime_t i_cell_cur_time;
 158     mtime_t i_cell_duration;
 159
 160     /* Track */
 161     ps_track_t    tk[PS_TK_COUNT];
 162
 163     int           i_titles;
 164     input_title_t **titles;
 165
 166     /* Video */
 167     int i_aspect;
 168
 169     /* SPU */
 170     uint32_t clut[16];
 171 };
 172
 173 static int Control   ( demux_t *, int, va_list );
 174 static int Demux     ( demux_t * );
 175 static int DemuxBlock( demux_t *, uint8_t *, int );
 176
 177 static void DemuxTitles( demux_t *, int * );
 178 static void ESNew( demux_t *, int, int );
 179
 180 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 181 static void DvdReadSeek     ( demux_t *, int );
 182 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 183 static void DvdReadFindCell ( demux_t * );
 184
 185 /*****************************************************************************
 186  * Open:
 187  *****************************************************************************/
 188 static int Open( vlc_object_t *p_this )
 189 {
 190     demux_t      *p_demux = (demux_t*)p_this;
 191     demux_sys_t  *p_sys;
 192     char         *psz_name;
 193     char         *psz_dvdcss_env;
 194     dvd_reader_t *p_dvdread;
 195     ifo_handle_t *p_vmg_file;
 196     vlc_value_t  val;
 197
 198     if( !p_demux->psz_path || !*p_demux->psz_path )
 199     {
 200         /* Only when selected */
 201         if( !p_this->b_force ) return VLC_EGENERIC;
 202
 203         psz_name = var_CreateGetString( p_this, "dvd" );
 204         if( !psz_name )
 205         {
 206             psz_name = strdup("");
 207         }
 208     }
 209     else
 210         psz_name = ToLocaleDup( p_demux->psz_path );
 211
 212 #ifdef WIN32
 213     if( psz_name[0] && psz_name[1] == ':' &&
 214         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 215 #endif
 216
 217     /* Override environment variable DVDCSS_METHOD with config option
 218      * (FIXME: this creates a small memory leak) */
 219     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 220     if( psz_dvdcss_env && *psz_dvdcss_env )
 221     {
 222         char *psz_env;
 223
 224         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 225                           strlen( psz_dvdcss_env ) + 1 );
 226         if( !psz_env )
 227         {
 228             free( psz_dvdcss_env );
 229             return VLC_ENOMEM;
 230         }
 231
 232         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 233
 234         putenv( psz_env );
 235     }
 236     free( psz_dvdcss_env );
 237
 238     /* Open dvdread */
 239     if( !(p_dvdread = DVDOpen( psz_name )) )
 240     {
 241         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 242         intf_UserFatal( p_demux, false, _("Playback failure"),
 243                         _("DVDRead could not open the disk \"%s\"."), psz_name );
 244         free( psz_name );
 245         return VLC_EGENERIC;
 246     }
 247     free( psz_name );
 248
 249     /* Ifo allocation & initialisation */
 250     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 251     {
 252         msg_Warn( p_demux, "cannot open VMG info" );
 253         return VLC_EGENERIC;
 254     }
 255     msg_Dbg( p_demux, "VMG opened" );
 256
 257     /* Fill p_demux field */
 258     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 259
 260     ps_track_init( p_sys->tk );
 261     p_sys->i_aspect = -1;
 262     p_sys->i_title_cur_time = (mtime_t) 0;
 263     p_sys->i_cell_cur_time = (mtime_t) 0;
 264     p_sys->i_cell_duration = (mtime_t) 0;
 265
 266     p_sys->p_dvdread = p_dvdread;
 267     p_sys->p_vmg_file = p_vmg_file;
 268     p_sys->p_title = NULL;
 269     p_sys->p_vts_file = NULL;
 270
 271     p_sys->i_title = p_sys->i_chapter = -1;
 272     p_sys->i_mux_rate = 0;
 273
 274     var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 275     var_Get( p_demux, "dvdread-angle", &val );
 276     p_sys->i_angle = val.i_int > 0 ? val.i_int : 1;
 277
 278     DemuxTitles( p_demux, &p_sys->i_angle );
 279     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 280     {
 281         Close( p_this );
 282         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 283                  p_sys->i_angle );
 284         return VLC_EGENERIC;
 285     }
 286
 287     /* Update default_pts to a suitable value for dvdread access */
 288     var_Create( p_demux, "dvdread-caching",
 289                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 290
 291     return VLC_SUCCESS;
 292 }
 293
 294 /*****************************************************************************
 295  * Close:
 296  *****************************************************************************/
 297 static void Close( vlc_object_t *p_this )
 298 {
 299     demux_t     *p_demux = (demux_t*)p_this;
 300     demux_sys_t *p_sys = p_demux->p_sys;
 301     int i;
 302
 303     for( i = 0; i < PS_TK_COUNT; i++ )
 304     {
 305         ps_track_t *tk = &p_sys->tk[i];
 306         if( tk->b_seen )
 307         {
 308             es_format_Clean( &tk->fmt );
 309             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 310         }
 311     }
 312
 313     /* Close libdvdread */
 314     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 315     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 316     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 317     DVDClose( p_sys->p_dvdread );
 318
 319     free( p_sys );
 320 }
 321
 322 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 323 {
 324 /* Macro to convert Binary Coded Decimal to Decimal */
 325 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 326
 327     double f_fps, f_ms;
 328     int64_t i_micro_second = 0;
 329
 330     if (still_time == 0 || still_time == 0xFF)
 331     {
 332         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 333         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 334         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 335
 336         switch((dtime->frame_u & 0xc0) >> 6)
 337         {
 338         case 1:
 339             f_fps = 25.0;
 340             break;
 341         case 3:
 342             f_fps = 29.97;
 343             break;
 344         default:
 345             f_fps = 2500.0;
 346             break;
 347         }
 348         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 349         i_micro_second += (int64_t)(f_ms * 1000.0);
 350     }
 351     else
 352     {
 353         i_micro_second = still_time;
 354         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 355     }
 356
 357     return i_micro_second;
 358 }
 359
 360 /*****************************************************************************
 361  * Control:
 362  *****************************************************************************/
 363 static int Control( demux_t *p_demux, int i_query, va_list args )
 364 {
 365     demux_sys_t *p_sys = p_demux->p_sys;
 366     double f, *pf;
 367     bool *pb;
 368     int64_t *pi64;
 369     input_title_t ***ppp_title;
 370     int *pi_int;
 371     int i;
 372
 373     switch( i_query )
 374     {
 375         case DEMUX_GET_POSITION:
 376         {
 377             pf = (double*) va_arg( args, double* );
 378
 379             if( p_sys->i_title_blocks > 0 )
 380                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 381             else
 382                 *pf = 0.0;
 383
 384             return VLC_SUCCESS;
 385         }
 386         case DEMUX_SET_POSITION:
 387         {
 388             f = (double)va_arg( args, double );
 389
 390             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 391
 392             return VLC_SUCCESS;
 393         }
 394         case DEMUX_GET_TIME:
 395             pi64 = (int64_t*)va_arg( args, int64_t * );
 396             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 397             {
 398                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 399                         p_sys->i_title_blocks * p_sys->i_title_offset;
 400                 return VLC_SUCCESS;
 401             }
 402             *pi64 = 0;
 403             return VLC_EGENERIC;
 404
 405         case DEMUX_GET_LENGTH:
 406             pi64 = (int64_t*)va_arg( args, int64_t * );
 407             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 408             {
 409                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 410                 return VLC_SUCCESS;
 411             }
 412             *pi64 = 0;
 413             return VLC_EGENERIC;
 414
 415         /* Special for access_demux */
 416         case DEMUX_CAN_PAUSE:
 417         case DEMUX_CAN_SEEK:
 418         case DEMUX_CAN_CONTROL_PACE:
 419             /* TODO */
 420             pb = (bool*)va_arg( args, bool * );
 421             *pb = true;
 422             return VLC_SUCCESS;
 423
 424         case DEMUX_SET_PAUSE_STATE:
 425             return VLC_SUCCESS;
 426
 427         case DEMUX_GET_TITLE_INFO:
 428             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 429             pi_int    = (int*)va_arg( args, int* );
 430             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 431             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 432
 433             /* Duplicate title infos */
 434             *pi_int = p_sys->i_titles;
 435             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 436             for( i = 0; i < p_sys->i_titles; i++ )
 437             {
 438                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 439             }
 440             return VLC_SUCCESS;
 441
 442         case DEMUX_SET_TITLE:
 443             i = (int)va_arg( args, int );
 444             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 445             {
 446                 msg_Warn( p_demux, "cannot set title/chapter" );
 447                 return VLC_EGENERIC;
 448             }
 449             p_demux->info.i_update |=
 450                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 451             p_demux->info.i_title = i;
 452             p_demux->info.i_seekpoint = 0;
 453             return VLC_SUCCESS;
 454
 455         case DEMUX_SET_SEEKPOINT:
 456             i = (int)va_arg( args, int );
 457             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 458             {
 459                 msg_Warn( p_demux, "cannot set title/chapter" );
 460                 return VLC_EGENERIC;
 461             }
 462             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 463             p_demux->info.i_seekpoint = i;
 464             return VLC_SUCCESS;
 465
 466         case DEMUX_GET_PTS_DELAY:
 467             pi64 = (int64_t*)va_arg( args, int64_t * );
 468             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 469             return VLC_SUCCESS;
 470
 471         /* TODO implement others */
 472         default:
 473             return VLC_EGENERIC;
 474     }
 475 }
 476
 477 /*****************************************************************************
 478  * Demux:
 479  *****************************************************************************/
 480 static int Demux( demux_t *p_demux )
 481 {
 482     demux_sys_t *p_sys = p_demux->p_sys;
 483
 484     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 485     int i_blocks_once, i_read;
 486     int i;
 487
 488     /*
 489      * Playback by cell in this pgc, starting at the cell for our chapter.
 490      */
 491
 492     /*
 493      * Check end of pack, and select the following one
 494      */
 495     if( !p_sys->i_pack_len )
 496     {
 497         /* Read NAV packet */
 498         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 499                            1, p_buffer ) != 1 )
 500         {
 501             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 502             intf_UserWarn( p_demux, _("Playback failure"),
 503                             _("DVDRead could not read block %d."),
 504                            p_sys->i_next_vobu );
 505             return -1;
 506         }
 507
 508         /* Basic check to be sure we don't have a empty title
 509          * go to next title if so */
 510         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 511
 512         /* Parse the contained dsi packet */
 513         DvdReadHandleDSI( p_demux, p_buffer );
 514
 515         /* End of title */
 516         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 517         {
 518             if( p_sys->i_title + 1 >= p_sys->i_titles )
 519             {
 520                 return 0; /* EOF */
 521             }
 522
 523             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 524         }
 525
 526         if( p_sys->i_pack_len >= 1024 )
 527         {
 528             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 529                      "This shouldn't happen!", p_sys->i_pack_len );
 530             return 0; /* EOF */
 531         }
 532
 533         /* FIXME: Ugly kludge: we send the pack block to the input for it
 534          * sometimes has a zero scr and restart the sync */
 535         p_sys->i_cur_block++;
 536         p_sys->i_title_offset++;
 537
 538         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 539     }
 540
 541     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 542     {
 543         if( p_sys->i_title + 1 >= p_sys->i_titles )
 544         {
 545             return 0; /* EOF */
 546         }
 547
 548         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 549     }
 550
 551     /*
 552      * Read actual data
 553      */
 554     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 555     p_sys->i_pack_len -= i_blocks_once;
 556
 557     /* Reads from DVD */
 558     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 559                             i_blocks_once, p_buffer );
 560     if( i_read != i_blocks_once )
 561     {
 562         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 563                  i_read, i_blocks_once, p_sys->i_cur_block );
 564         intf_UserFatal( p_demux, false, _("Playback failure"),
 565                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 566                         i_read, i_blocks_once, p_sys->i_cur_block );
 567         return -1;
 568     }
 569
 570     p_sys->i_cur_block += i_read;
 571     p_sys->i_title_offset += i_read;
 572
 573 #if 0
 574     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 575              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 576 #endif
 577
 578     for( i = 0; i < i_read; i++ )
 579     {
 580         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 581                     DVD_VIDEO_LB_LEN );
 582     }
 583
 584 #undef p_pgc
 585
 586     return 1;
 587 }
 588
 589 /*****************************************************************************
 590  * DemuxBlock: demux a given block
 591  *****************************************************************************/
 592 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 593 {
 594     demux_sys_t *p_sys = p_demux->p_sys;
 595     uint8_t     *p = pkt;
 596
 597     while( p < &pkt[i_pkt] )
 598     {
 599         int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
 600         block_t *p_pkt;
 601         if( i_size <= 0 )
 602         {
 603             break;
 604         }
 605
 606         /* Create a block */
 607         p_pkt = block_New( p_demux, i_size );
 608         memcpy( p_pkt->p_buffer, p, i_size);
 609
 610         /* Parse it and send it */
 611         switch( 0x100 | p[3] )
 612         {
 613         case 0x1b9:
 614         case 0x1bb:
 615         case 0x1bc:
 616
 617 #ifdef DVDREAD_DEBUG
 618             if( p[3] == 0xbc )
 619             {
 620                 msg_Warn( p_demux, "received a PSM packet" );
 621             }
 622             else if( p[3] == 0xbb )
 623             {
 624                 msg_Warn( p_demux, "received a SYSTEM packet" );
 625             }
 626 #endif
 627             block_Release( p_pkt );
 628             break;
 629
 630         case 0x1ba:
 631         {
 632             int64_t i_scr;
 633             int i_mux_rate;
 634             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 635             {
 636                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 637                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 638             }
 639             block_Release( p_pkt );
 640             break;
 641         }
 642         default:
 643         {
 644             int i_id = ps_pkt_id( p_pkt );
 645             if( i_id >= 0xc0 )
 646             {
 647                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 648
 649                 if( !tk->b_seen )
 650                 {
 651                     ESNew( p_demux, i_id, 0 );
 652                 }
 653                 if( tk->b_seen && tk->es &&
 654                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 655                 {
 656                     es_out_Send( p_demux->out, tk->es, p_pkt );
 657                 }
 658                 else
 659                 {
 660                     block_Release( p_pkt );
 661                 }
 662             }
 663             else
 664             {
 665                 block_Release( p_pkt );
 666             }
 667             break;
 668         }
 669         }
 670
 671         p += i_size;
 672     }
 673
 674     return VLC_SUCCESS;
 675 }
 676
 677 /*****************************************************************************
 678  * ESNew: register a new elementary stream
 679  *****************************************************************************/
 680 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 681 {
 682     demux_sys_t *p_sys = p_demux->p_sys;
 683     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 684     char psz_language[3];
 685
 686     if( tk->b_seen ) return;
 687
 688     if( ps_track_fill( tk, 0, i_id ) )
 689     {
 690         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 691         return;
 692     }
 693
 694     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 695     if( i_lang && i_lang != 0xffff )
 696     {
 697         psz_language[0] = (i_lang >> 8)&0xff;
 698         psz_language[1] = (i_lang     )&0xff;
 699     }
 700
 701     /* Add a new ES */
 702     if( tk->fmt.i_cat == VIDEO_ES )
 703     {
 704         if( p_sys->i_aspect >= 0 )
 705         {
 706             tk->fmt.video.i_aspect = p_sys->i_aspect;
 707         }
 708     }
 709     else if( tk->fmt.i_cat == AUDIO_ES )
 710     {
 711         int i_audio = -1;
 712         /* find the audio number PLEASE find another way */
 713         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 714         {
 715             i_audio = i_id&0x07;
 716         }
 717         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 718         {
 719             i_audio = i_id&0xf;
 720         }
 721         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 722         {
 723             i_audio = i_id&0x1f;
 724         }
 725         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 726         {
 727             i_audio = i_id&0x1f;
 728         }
 729
 730         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 731     }
 732     else if( tk->fmt.i_cat == SPU_ES )
 733     {
 734         /* Palette */
 735         tk->fmt.subs.spu.palette[0] = 0xBeef;
 736         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 737                 16 * sizeof( uint32_t ) );
 738
 739         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 740     }
 741
 742     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 743     tk->b_seen = true;
 744 }
 745
 746 /*****************************************************************************
 747  * DvdReadSetArea: initialize input data for title x, chapter y.
 748  * It should be called for each user navigation request.
 749  *****************************************************************************
 750  * Take care that i_title and i_chapter start from 0.
 751  *****************************************************************************/
 752 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 753                            int i_angle )
 754 {
 755     demux_sys_t *p_sys = p_demux->p_sys;
 756     int pgc_id = 0, pgn = 0;
 757     int i;
 758
 759 #define p_pgc p_sys->p_cur_pgc
 760 #define p_vmg p_sys->p_vmg_file
 761 #define p_vts p_sys->p_vts_file
 762
 763     if( i_title >= 0 && i_title < p_sys->i_titles &&
 764         i_title != p_sys->i_title )
 765     {
 766         int i_start_cell, i_end_cell;
 767
 768         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 769         if( p_vts != NULL ) ifoClose( p_vts );
 770         p_sys->i_title = i_title;
 771
 772         /*
 773          *  We have to load all title information
 774          */
 775         msg_Dbg( p_demux, "open VTS %d, for title %d",
 776                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 777
 778         /* Ifo vts */
 779         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 780                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 781         {
 782             msg_Err( p_demux, "fatal error in vts ifo" );
 783             return VLC_EGENERIC;
 784         }
 785
 786         /* Title position inside the selected vts */
 787         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 788
 789         /* Find title start/end */
 790         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 791         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 792         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 793
 794         p_sys->i_title_start_cell =
 795             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 796         p_sys->i_title_start_block =
 797             p_pgc->cell_playback[i_start_cell].first_sector;
 798
 799         p_sys->i_title_end_cell =
 800             i_end_cell = p_pgc->nr_of_cells - 1;
 801         p_sys->i_title_end_block =
 802             p_pgc->cell_playback[i_end_cell].last_sector;
 803
 804         p_sys->i_title_offset = 0;
 805
 806         p_sys->i_title_blocks = 0;
 807         for( i = i_start_cell; i <= i_end_cell; i++ )
 808         {
 809             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 810                 p_pgc->cell_playback[i].first_sector + 1;
 811         }
 812
 813         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 814                  "start %d end %d blocks: %d",
 815                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 816                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 817                  p_sys->i_title_blocks );
 818
 819         /*
 820          * Set properties for current chapter
 821          */
 822         p_sys->i_chapter = 0;
 823         p_sys->i_chapters =
 824             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 825
 826         pgc_id = p_vts->vts_ptt_srpt->title[
 827                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 828         pgn = p_vts->vts_ptt_srpt->title[
 829                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 830
 831         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 832         p_sys->i_pack_len = 0;
 833         p_sys->i_next_cell =
 834             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 835         DvdReadFindCell( p_demux );
 836
 837         p_sys->i_next_vobu = p_sys->i_cur_block =
 838             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 839
 840         /*
 841          * Angle management
 842          */
 843         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 844         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 845
 846         /*
 847          * We've got enough info, time to open the title set data.
 848          */
 849         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 850             p_vmg->tt_srpt->title[i_title].title_set_nr,
 851             DVD_READ_TITLE_VOBS ) ) )
 852         {
 853             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 854                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 855             return VLC_EGENERIC;
 856         }
 857
 858         //IfoPrintTitle( p_demux );
 859
 860         /*
 861          * Destroy obsolete ES by reinitializing program 0
 862          * and find all ES in title with ifo data
 863          */
 864         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 865
 866         for( i = 0; i < PS_TK_COUNT; i++ )
 867         {
 868             ps_track_t *tk = &p_sys->tk[i];
 869             if( tk->b_seen )
 870             {
 871                 es_format_Clean( &tk->fmt );
 872                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 873             }
 874             tk->b_seen = false;
 875         }
 876
 877         if( p_demux->info.i_title != i_title )
 878         {
 879             p_demux->info.i_update |=
 880                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 881             p_demux->info.i_title = i_title;
 882             p_demux->info.i_seekpoint = 0;
 883         }
 884
 885         /* TODO: re-add angles */
 886
 887
 888         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 889         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 890
 891 #define audio_control \
 892     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 893
 894         /* Audio ES, in the order they appear in the .ifo */
 895         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 896         {
 897             int i_position = 0;
 898             uint16_t i_id;
 899
 900             //IfoPrintAudio( p_demux, i );
 901
 902             /* Audio channel is active if first byte is 0x80 */
 903             if( audio_control & 0x8000 )
 904             {
 905                 i_position = ( audio_control & 0x7F00 ) >> 8;
 906
 907                 msg_Dbg( p_demux, "audio position  %d", i_position );
 908                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 909                 {
 910                 case 0x00: /* A52 */
 911                     i_id = (0x80 + i_position) | 0xbd00;
 912                     break;
 913                 case 0x02:
 914                 case 0x03: /* MPEG audio */
 915                     i_id = 0xc000 + i_position;
 916                     break;
 917                 case 0x04: /* LPCM */
 918                     i_id = (0xa0 + i_position) | 0xbd00;
 919                     break;
 920                 case 0x06: /* DTS */
 921                     i_id = (0x88 + i_position) | 0xbd00;
 922                     break;
 923                 default:
 924                     i_id = 0;
 925                     msg_Err( p_demux, "unknown audio type %.2x",
 926                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 927                 }
 928
 929                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 930                        vts_audio_attr[i - 1].lang_code );
 931             }
 932         }
 933 #undef audio_control
 934
 935 #define spu_palette \
 936     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 937
 938         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 939
 940 #define spu_control \
 941     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 942
 943         /* Sub Picture ES */
 944         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 945         {
 946             int i_position = 0;
 947             uint16_t i_id;
 948
 949             //IfoPrintSpu( p_sys, i );
 950             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 951
 952             if( spu_control & 0x80000000 )
 953             {
 954                 /*  there are several streams for one spu */
 955                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 956                 {
 957                     /* 16:9 */
 958                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 959                     {
 960                     case 1: /* letterbox */
 961                         i_position = spu_control & 0xff;
 962                         break;
 963                     case 2: /* pan&scan */
 964                         i_position = ( spu_control >> 8 ) & 0xff;
 965                         break;
 966                     default: /* widescreen */
 967                         i_position = ( spu_control >> 16 ) & 0xff;
 968                         break;
 969                     }
 970                 }
 971                 else
 972                 {
 973                     /* 4:3 */
 974                     i_position = ( spu_control >> 24 ) & 0x7F;
 975                 }
 976
 977                 i_id = (0x20 + i_position) | 0xbd00;
 978
 979                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 980                        vts_subp_attr[i - 1].lang_code );
 981             }
 982         }
 983 #undef spu_control
 984
 985     }
 986     else if( i_title != -1 && i_title != p_sys->i_title )
 987
 988     {
 989         return VLC_EGENERIC; /* Couldn't set title */
 990     }
 991
 992     /*
 993      * Chapter selection
 994      */
 995
 996     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 997     {
 998         pgc_id = p_vts->vts_ptt_srpt->title[
 999                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1000         pgn = p_vts->vts_ptt_srpt->title[
1001                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1002
1003         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1004
1005         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1006         p_sys->i_chapter = i_chapter;
1007         DvdReadFindCell( p_demux );
1008
1009         p_sys->i_title_offset = 0;
1010         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1011         {
1012             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1013                 p_pgc->cell_playback[i].first_sector + 1;
1014         }
1015
1016         p_sys->i_pack_len = 0;
1017         p_sys->i_next_vobu = p_sys->i_cur_block =
1018             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1019
1020         if( p_demux->info.i_seekpoint != i_chapter )
1021         {
1022             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1023             p_demux->info.i_seekpoint = i_chapter;
1024         }
1025     }
1026     else if( i_chapter != -1 )
1027
1028     {
1029         return VLC_EGENERIC; /* Couldn't set chapter */
1030     }
1031
1032 #undef p_pgc
1033 #undef p_vts
1034 #undef p_vmg
1035
1036     return VLC_SUCCESS;
1037 }
1038
1039 /*****************************************************************************
1040  * DvdReadSeek : Goes to a given position on the stream.
1041  *****************************************************************************
1042  * This one is used by the input and translate chronological position from
1043  * input to logical position on the device.
1044  *****************************************************************************/
1045 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1046 {
1047     demux_sys_t *p_sys = p_demux->p_sys;
1048     int i_chapter = 0;
1049     int i_cell = 0;
1050     int i_vobu = 0;
1051     int i_sub_cell = 0;
1052     int i_block;
1053
1054 #define p_pgc p_sys->p_cur_pgc
1055 #define p_vts p_sys->p_vts_file
1056
1057     /* Find cell */
1058     i_block = i_block_offset;
1059     for( i_cell = p_sys->i_title_start_cell;
1060          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1061     {
1062         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1063             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1064
1065         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1066             p_pgc->cell_playback[i_cell].first_sector + 1);
1067     }
1068     if( i_cell > p_sys->i_title_end_cell )
1069     {
1070         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1071         return;
1072     }
1073     i_block += p_pgc->cell_playback[i_cell].first_sector;
1074     p_sys->i_title_offset = i_block_offset;
1075
1076     /* Find chapter */
1077     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1078     {
1079         int pgc_id, pgn, i_tmp;
1080
1081         pgc_id = p_vts->vts_ptt_srpt->title[
1082                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1083         pgn = p_vts->vts_ptt_srpt->title[
1084                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1085
1086         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1087
1088         if( i_tmp > i_cell ) break;
1089     }
1090
1091     if( i_chapter < p_sys->i_chapters &&
1092         p_demux->info.i_seekpoint != i_chapter )
1093     {
1094         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1095         p_demux->info.i_seekpoint = i_chapter;
1096     }
1097
1098     /* Find vobu */
1099     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1100     {
1101         i_vobu++;
1102     }
1103
1104     /* Find sub_cell */
1105     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1106            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1107     {
1108         i_sub_cell++;
1109     }
1110
1111 #if 1
1112     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1113              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1114              i_cell, i_sub_cell, i_chapter, i_vobu,
1115              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1116              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1117              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1118 #endif
1119
1120     p_sys->i_cur_block = i_block;
1121     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1122     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1123     p_sys->i_cur_cell = i_cell;
1124     p_sys->i_chapter = i_chapter;
1125     DvdReadFindCell( p_demux );
1126
1127 #undef p_vts
1128 #undef p_pgc
1129
1130     return;
1131 }
1132
1133 /*****************************************************************************
1134  * DvdReadHandleDSI
1135  *****************************************************************************/
1136 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1137 {
1138     demux_sys_t *p_sys = p_demux->p_sys;
1139
1140     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1141
1142     /*
1143      * Determine where we go next.  These values are the ones we mostly
1144      * care about.
1145      */
1146     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1147     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1148
1149     /*
1150      * Store the timecodes so we can get the current time
1151      */
1152     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1153     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1154
1155     /*
1156      * If we're not at the end of this cell, we can determine the next
1157      * VOBU to display using the VOBU_SRI information section of the
1158      * DSI.  Using this value correctly follows the current angle,
1159      * avoiding the doubled scenes in The Matrix, and makes our life
1160      * really happy.
1161      */
1162
1163     p_sys->i_next_vobu = p_sys->i_cur_block +
1164         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1165
1166     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1167         && p_sys->i_angle > 1 )
1168     {
1169         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1170         {
1171         case 0x4:
1172             /* Interleaved unit with no angle */
1173             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1174             {
1175                 p_sys->i_next_vobu = p_sys->i_cur_block +
1176                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1177                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1178             }
1179             else
1180             {
1181                 p_sys->i_next_vobu = p_sys->i_cur_block +
1182                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1183             }
1184             break;
1185         case 0x5:
1186             /* vobu is end of ilvu */
1187             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1188             {
1189                 p_sys->i_next_vobu = p_sys->i_cur_block +
1190                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1191                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1192
1193                 break;
1194             }
1195         case 0x6:
1196             /* vobu is beginning of ilvu */
1197         case 0x9:
1198             /* next scr is 0 */
1199         case 0xa:
1200             /* entering interleaved section */
1201         case 0x8:
1202             /* non interleaved cells in interleaved section */
1203         default:
1204             p_sys->i_next_vobu = p_sys->i_cur_block +
1205                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1206             break;
1207         }
1208     }
1209     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1210     {
1211         p_sys->i_cur_cell = p_sys->i_next_cell;
1212
1213         /* End of title */
1214         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1215
1216         DvdReadFindCell( p_demux );
1217
1218         p_sys->i_next_vobu =
1219             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1220
1221         p_sys->i_cell_duration = (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 );
1222     }
1223
1224
1225 #if 0
1226     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1227              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1228              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1229              p_sys->dsi_pack.dsi_gi.vobu_ea,
1230              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1231              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1232              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1233
1234     msg_Dbg( p_demux, "cell duration: %lld",
1235              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1236
1237     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1238              p_sys->dsi_pack.sml_pbi.category,
1239              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1240              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1241              p_sys->dsi_pack.sml_pbi.size );
1242
1243     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1244              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1245              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1246              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1247 #endif
1248 }
1249
1250 /*****************************************************************************
1251  * DvdReadFindCell
1252  *****************************************************************************/
1253 static void DvdReadFindCell( demux_t *p_demux )
1254 {
1255     demux_sys_t *p_sys = p_demux->p_sys;
1256
1257     pgc_t *p_pgc;
1258     int   pgc_id, pgn;
1259     int   i = 0;
1260
1261 #define cell p_sys->p_cur_pgc->cell_playback
1262
1263     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1264     {
1265         p_sys->i_cur_cell += p_sys->i_angle - 1;
1266
1267         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1268         {
1269             i++;
1270         }
1271         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1272     }
1273     else
1274     {
1275         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1276     }
1277
1278 #undef cell
1279
1280     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1281
1282     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1283                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1284     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1285               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1286     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1287
1288     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1289     {
1290         p_sys->i_chapter++;
1291
1292         if( p_sys->i_chapter < p_sys->i_chapters &&
1293             p_demux->info.i_seekpoint != p_sys->i_chapter )
1294         {
1295             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1296             p_demux->info.i_seekpoint = p_sys->i_chapter;
1297         }
1298     }
1299 }
1300
1301 /*****************************************************************************
1302  * DemuxTitles: get the titles/chapters structure
1303  *****************************************************************************/
1304 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1305 {
1306     demux_sys_t *p_sys = p_demux->p_sys;
1307     input_title_t *t;
1308     seekpoint_t *s;
1309     int32_t i_titles;
1310     int i;
1311
1312     /* Find out number of titles/chapters */
1313 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1314
1315     i_titles = tt_srpt->nr_of_srpts;
1316     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1317
1318     for( i = 0; i < i_titles; i++ )
1319     {
1320         int32_t i_chapters = 0;
1321         int j;
1322
1323         i_chapters = tt_srpt->title[i].nr_of_ptts;
1324         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1325
1326         t = vlc_input_title_New();
1327
1328         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1329         {
1330             s = vlc_seekpoint_New();
1331             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1332         }
1333
1334         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1335     }
1336
1337 #undef tt_srpt
1338 }