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

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_input.h>
  36 #include <vlc_access.h>
  37 #include <vlc_charset.h>
  38 #include <vlc_interface.h>
  39 #include <vlc_dialog.h>
  40
  41 #include <vlc_iso_lang.h>
  42
  43 #include "../demux/ps.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #   include <unistd.h>
  47 #endif
  48
  49 #include <sys/types.h>
  50
  51 #ifdef HAVE_DVDREAD_DVD_READER_H
  52   #include <dvdread/dvd_reader.h>
  53   #include <dvdread/ifo_types.h>
  54   #include <dvdread/ifo_read.h>
  55   #include <dvdread/nav_read.h>
  56   #include <dvdread/nav_print.h>
  57 #else
  58   #include <libdvdread/dvd_reader.h>
  59   #include <libdvdread/ifo_types.h>
  60   #include <libdvdread/ifo_read.h>
  61   #include <libdvdread/nav_read.h>
  62   #include <libdvdread/nav_print.h>
  63 #endif
  64
  65 #include <assert.h>
  66
  67 /*****************************************************************************
  68  * Module descriptor
  69  *****************************************************************************/
  70 #define ANGLE_TEXT N_("DVD angle")
  71 #define ANGLE_LONGTEXT N_( \
  72     "Default DVD angle." )
  73
  74 #define CACHING_TEXT N_("Caching value in ms")
  75 #define CACHING_LONGTEXT N_( \
  76     "Caching value for DVDs. " \
  77     "This value should be set in milliseconds." )
  78
  79 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  80 #define CSSMETHOD_LONGTEXT N_( \
  81     "Set the method used by libdvdcss for key decryption.\n" \
  82     "title: decrypted title key is guessed from the encrypted sectors of " \
  83            "the stream. Thus it should work with a file as well as the " \
  84            "DVD device. But it sometimes takes much time to decrypt a title " \
  85            "key and may even fail. With this method, the key is only checked "\
  86            "at the beginning of each title, so it won't work if the key " \
  87            "changes in the middle of a title.\n" \
  88     "disc: the disc key is first cracked, then all title keys can be " \
  89            "decrypted instantly, which allows us to check them often.\n" \
  90     "key: the same as \"disc\" if you don't have a file with player keys " \
  91            "at compilation time. If you do, the decryption of the disc key " \
  92            "will be faster with this method. It is the one that was used by " \
  93            "libcss.\n" \
  94     "The default method is: key.")
  95
  96 static const char *const psz_css_list[] = { "title", "disc", "key" };
  97 static const char *const psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
  98
  99 static int  Open ( vlc_object_t * );
 100 static void Close( vlc_object_t * );
 101
 102 vlc_module_begin ()
 103     set_shortname( N_("DVD without menus") )
 104     set_description( N_("DVDRead Input (no menu support)") )
 105     set_category( CAT_INPUT )
 106     set_subcategory( SUBCAT_INPUT_ACCESS )
 107     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
 108         ANGLE_LONGTEXT, false )
 109     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
 110         CACHING_TEXT, CACHING_LONGTEXT, true )
 111     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
 112                 CSSMETHOD_LONGTEXT, true )
 113         change_string_list( psz_css_list, psz_css_list_text, 0 )
 114     set_capability( "access_demux", 0 )
 115     add_shortcut( "dvd" )
 116     add_shortcut( "dvdread" )
 117     add_shortcut( "dvdsimple" )
 118     set_callbacks( Open, Close )
 119 vlc_module_end ()
 120
 121 /* how many blocks DVDRead will read in each loop */
 122 #define DVD_BLOCK_READ_ONCE 4
 123
 124 /*****************************************************************************
 125  * Local prototypes
 126  *****************************************************************************/
 127
 128 struct demux_sys_t
 129 {
 130     /* DVDRead state */
 131     dvd_reader_t *p_dvdread;
 132     dvd_file_t   *p_title;
 133
 134     ifo_handle_t *p_vmg_file;
 135     ifo_handle_t *p_vts_file;
 136
 137     int i_title;
 138     int i_chapter, i_chapters;
 139     int i_angle, i_angles;
 140
 141     tt_srpt_t    *p_tt_srpt;
 142     pgc_t        *p_cur_pgc;
 143     dsi_t        dsi_pack;
 144     int          i_ttn;
 145
 146     int i_pack_len;
 147     int i_cur_block;
 148     int i_next_vobu;
 149
 150     int i_mux_rate;
 151
 152     /* Current title start/end blocks */
 153     int i_title_start_block;
 154     int i_title_end_block;
 155     int i_title_blocks;
 156     int i_title_offset;
 157     mtime_t i_title_cur_time;
 158
 159     int i_title_start_cell;
 160     int i_title_end_cell;
 161     int i_cur_cell;
 162     int i_next_cell;
 163     mtime_t i_cell_cur_time;
 164     mtime_t i_cell_duration;
 165
 166     /* Track */
 167     ps_track_t    tk[PS_TK_COUNT];
 168
 169     int           i_titles;
 170     input_title_t **titles;
 171
 172     /* Video */
 173     int i_sar_num;
 174     int i_sar_den;
 175
 176     /* SPU */
 177     uint32_t clut[16];
 178 };
 179
 180 static int Control   ( demux_t *, int, va_list );
 181 static int Demux     ( demux_t * );
 182 static int DemuxBlock( demux_t *, uint8_t *, int );
 183
 184 static void DemuxTitles( demux_t *, int * );
 185 static void ESNew( demux_t *, int, int );
 186
 187 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 188 static void DvdReadSeek     ( demux_t *, int );
 189 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 190 static void DvdReadFindCell ( demux_t * );
 191
 192 /*****************************************************************************
 193  * Open:
 194  *****************************************************************************/
 195 static int Open( vlc_object_t *p_this )
 196 {
 197     demux_t      *p_demux = (demux_t*)p_this;
 198     demux_sys_t  *p_sys;
 199     char         *psz_name;
 200     char         *psz_dvdcss_env;
 201     dvd_reader_t *p_dvdread;
 202     ifo_handle_t *p_vmg_file;
 203
 204     if( !p_demux->psz_path || !*p_demux->psz_path )
 205     {
 206         /* Only when selected */
 207         if( !p_demux->psz_access || !*p_demux->psz_access )
 208             return VLC_EGENERIC;
 209
 210         psz_name = var_CreateGetString( p_this, "dvd" );
 211         if( !psz_name )
 212         {
 213             psz_name = strdup("");
 214         }
 215     }
 216     else
 217         psz_name = ToLocaleDup( p_demux->psz_path );
 218
 219 #ifdef WIN32
 220     if( psz_name[0] && psz_name[1] == ':' &&
 221         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 222 #endif
 223
 224     /* Override environment variable DVDCSS_METHOD with config option */
 225     psz_dvdcss_env = var_InheritString( p_demux, "dvdread-css-method" );
 226     if( psz_dvdcss_env )
 227 #ifdef HAVE_SETENV
 228         setenv( "DVDCSS_METHOD", psz_dvdcss_env, 1 );
 229 #else
 230     {
 231         /* FIXME: this create a small memory leak */
 232         char *psz_env;
 233         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 234                           strlen( psz_dvdcss_env ) + 1 );
 235         if( !psz_env )
 236         {
 237             free( psz_dvdcss_env );
 238             return VLC_ENOMEM;
 239         }
 240         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 241         putenv( psz_env );
 242     }
 243 #endif
 244     free( psz_dvdcss_env );
 245
 246     /* Open dvdread */
 247     if( !(p_dvdread = DVDOpen( psz_name )) )
 248     {
 249         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 250         dialog_Fatal( p_demux, _("Playback failure"),
 251                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 252         free( psz_name );
 253         return VLC_EGENERIC;
 254     }
 255     free( psz_name );
 256
 257     /* Ifo allocation & initialisation */
 258     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 259     {
 260         msg_Warn( p_demux, "cannot open VMG info" );
 261         return VLC_EGENERIC;
 262     }
 263     msg_Dbg( p_demux, "VMG opened" );
 264
 265     /* Fill p_demux field */
 266     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 267
 268     ps_track_init( p_sys->tk );
 269     p_sys->i_sar_num = 0;
 270     p_sys->i_sar_den = 0;
 271     p_sys->i_title_cur_time = (mtime_t) 0;
 272     p_sys->i_cell_cur_time = (mtime_t) 0;
 273     p_sys->i_cell_duration = (mtime_t) 0;
 274
 275     p_sys->p_dvdread = p_dvdread;
 276     p_sys->p_vmg_file = p_vmg_file;
 277     p_sys->p_title = NULL;
 278     p_sys->p_vts_file = NULL;
 279
 280     p_sys->i_title = p_sys->i_chapter = -1;
 281     p_sys->i_mux_rate = 0;
 282
 283     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 284     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 285
 286     DemuxTitles( p_demux, &p_sys->i_angle );
 287     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 288     {
 289         Close( p_this );
 290         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 291                  p_sys->i_angle );
 292         return VLC_EGENERIC;
 293     }
 294
 295     /* Update default_pts to a suitable value for dvdread access */
 296     var_Create( p_demux, "dvdread-caching",
 297                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 298
 299     return VLC_SUCCESS;
 300 }
 301
 302 /*****************************************************************************
 303  * Close:
 304  *****************************************************************************/
 305 static void Close( vlc_object_t *p_this )
 306 {
 307     demux_t     *p_demux = (demux_t*)p_this;
 308     demux_sys_t *p_sys = p_demux->p_sys;
 309     int i;
 310
 311     for( i = 0; i < PS_TK_COUNT; i++ )
 312     {
 313         ps_track_t *tk = &p_sys->tk[i];
 314         if( tk->b_seen )
 315         {
 316             es_format_Clean( &tk->fmt );
 317             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 318         }
 319     }
 320
 321     /* Close libdvdread */
 322     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 323     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 324     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 325     DVDClose( p_sys->p_dvdread );
 326
 327     free( p_sys );
 328 }
 329
 330 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 331 {
 332 /* Macro to convert Binary Coded Decimal to Decimal */
 333 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 334
 335     double f_fps, f_ms;
 336     int64_t i_micro_second = 0;
 337
 338     if (still_time == 0 || still_time == 0xFF)
 339     {
 340         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 341         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 342         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 343
 344         switch((dtime->frame_u & 0xc0) >> 6)
 345         {
 346         case 1:
 347             f_fps = 25.0;
 348             break;
 349         case 3:
 350             f_fps = 29.97;
 351             break;
 352         default:
 353             f_fps = 2500.0;
 354             break;
 355         }
 356         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 357         i_micro_second += (int64_t)(f_ms * 1000.0);
 358     }
 359     else
 360     {
 361         i_micro_second = still_time;
 362         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 363     }
 364
 365     return i_micro_second;
 366 }
 367
 368 /*****************************************************************************
 369  * Control:
 370  *****************************************************************************/
 371 static int Control( demux_t *p_demux, int i_query, va_list args )
 372 {
 373     demux_sys_t *p_sys = p_demux->p_sys;
 374     double f, *pf;
 375     bool *pb;
 376     int64_t *pi64;
 377     input_title_t ***ppp_title;
 378     int *pi_int;
 379     int i;
 380
 381     switch( i_query )
 382     {
 383         case DEMUX_GET_POSITION:
 384         {
 385             pf = (double*) va_arg( args, double* );
 386
 387             if( p_sys->i_title_blocks > 0 )
 388                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 389             else
 390                 *pf = 0.0;
 391
 392             return VLC_SUCCESS;
 393         }
 394         case DEMUX_SET_POSITION:
 395         {
 396             f = (double)va_arg( args, double );
 397
 398             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 399
 400             return VLC_SUCCESS;
 401         }
 402         case DEMUX_GET_TIME:
 403             pi64 = (int64_t*)va_arg( args, int64_t * );
 404             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 405             {
 406                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 407                         p_sys->i_title_blocks * p_sys->i_title_offset;
 408                 return VLC_SUCCESS;
 409             }
 410             *pi64 = 0;
 411             return VLC_EGENERIC;
 412
 413         case DEMUX_GET_LENGTH:
 414             pi64 = (int64_t*)va_arg( args, int64_t * );
 415             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 416             {
 417                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 418                 return VLC_SUCCESS;
 419             }
 420             *pi64 = 0;
 421             return VLC_EGENERIC;
 422
 423         /* Special for access_demux */
 424         case DEMUX_CAN_PAUSE:
 425         case DEMUX_CAN_SEEK:
 426         case DEMUX_CAN_CONTROL_PACE:
 427             /* TODO */
 428             pb = (bool*)va_arg( args, bool * );
 429             *pb = true;
 430             return VLC_SUCCESS;
 431
 432         case DEMUX_SET_PAUSE_STATE:
 433             return VLC_SUCCESS;
 434
 435         case DEMUX_GET_TITLE_INFO:
 436             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 437             pi_int    = (int*)va_arg( args, int* );
 438             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 439             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 440
 441             /* Duplicate title infos */
 442             *pi_int = p_sys->i_titles;
 443             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 444             for( i = 0; i < p_sys->i_titles; i++ )
 445             {
 446                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 447             }
 448             return VLC_SUCCESS;
 449
 450         case DEMUX_SET_TITLE:
 451             i = (int)va_arg( args, int );
 452             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 453             {
 454                 msg_Warn( p_demux, "cannot set title/chapter" );
 455                 return VLC_EGENERIC;
 456             }
 457             p_demux->info.i_update |=
 458                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 459             p_demux->info.i_title = i;
 460             p_demux->info.i_seekpoint = 0;
 461             return VLC_SUCCESS;
 462
 463         case DEMUX_SET_SEEKPOINT:
 464             i = (int)va_arg( args, int );
 465             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 466             {
 467                 msg_Warn( p_demux, "cannot set title/chapter" );
 468                 return VLC_EGENERIC;
 469             }
 470             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 471             p_demux->info.i_seekpoint = i;
 472             return VLC_SUCCESS;
 473
 474         case DEMUX_GET_PTS_DELAY:
 475             pi64 = (int64_t*)va_arg( args, int64_t * );
 476             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 477             return VLC_SUCCESS;
 478
 479         /* TODO implement others */
 480         default:
 481             return VLC_EGENERIC;
 482     }
 483 }
 484
 485 /*****************************************************************************
 486  * Demux:
 487  *****************************************************************************/
 488 static int Demux( demux_t *p_demux )
 489 {
 490     demux_sys_t *p_sys = p_demux->p_sys;
 491
 492     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 493     int i_blocks_once, i_read;
 494     int i;
 495
 496     /*
 497      * Playback by cell in this pgc, starting at the cell for our chapter.
 498      */
 499
 500     /*
 501      * Check end of pack, and select the following one
 502      */
 503     if( !p_sys->i_pack_len )
 504     {
 505         /* Read NAV packet */
 506         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 507                            1, p_buffer ) != 1 )
 508         {
 509             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 510             dialog_Fatal( p_demux, _("Playback failure"),
 511                           _("DVDRead could not read block %d."),
 512                           p_sys->i_next_vobu );
 513             return -1;
 514         }
 515
 516         /* Basic check to be sure we don't have a empty title
 517          * go to next title if so */
 518         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 519
 520         /* Parse the contained dsi packet */
 521         DvdReadHandleDSI( p_demux, p_buffer );
 522
 523         /* End of title */
 524         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 525         {
 526             if( p_sys->i_title + 1 >= p_sys->i_titles )
 527             {
 528                 return 0; /* EOF */
 529             }
 530
 531             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 532         }
 533
 534         if( p_sys->i_pack_len >= 1024 )
 535         {
 536             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 537                      "This shouldn't happen!", p_sys->i_pack_len );
 538             return 0; /* EOF */
 539         }
 540
 541         /* FIXME: Ugly kludge: we send the pack block to the input for it
 542          * sometimes has a zero scr and restart the sync */
 543         p_sys->i_cur_block++;
 544         p_sys->i_title_offset++;
 545
 546         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 547     }
 548
 549     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 550     {
 551         if( p_sys->i_title + 1 >= p_sys->i_titles )
 552         {
 553             return 0; /* EOF */
 554         }
 555
 556         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 557     }
 558
 559     /*
 560      * Read actual data
 561      */
 562     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 563     p_sys->i_pack_len -= i_blocks_once;
 564
 565     /* Reads from DVD */
 566     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 567                             i_blocks_once, p_buffer );
 568     if( i_read != i_blocks_once )
 569     {
 570         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 571                  i_read, i_blocks_once, p_sys->i_cur_block );
 572         dialog_Fatal( p_demux, _("Playback failure"),
 573                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 574                         i_read, i_blocks_once, p_sys->i_cur_block );
 575         return -1;
 576     }
 577
 578     p_sys->i_cur_block += i_read;
 579     p_sys->i_title_offset += i_read;
 580
 581 #if 0
 582     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 583              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 584 #endif
 585
 586     for( i = 0; i < i_read; i++ )
 587     {
 588         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 589                     DVD_VIDEO_LB_LEN );
 590     }
 591
 592 #undef p_pgc
 593
 594     return 1;
 595 }
 596
 597 /*****************************************************************************
 598  * DemuxBlock: demux a given block
 599  *****************************************************************************/
 600 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 601 {
 602     demux_sys_t *p_sys = p_demux->p_sys;
 603     uint8_t     *p = pkt;
 604
 605     while( p && p < &pkt[i_pkt] )
 606     {
 607         block_t *p_pkt;
 608         int i_size = &pkt[i_pkt] - p;
 609
 610         if( i_size < 6 )
 611             break;
 612
 613         i_size = ps_pkt_size( p, i_size );
 614         if( i_size <= 0 )
 615         {
 616             break;
 617         }
 618
 619         /* Create a block */
 620         p_pkt = block_New( p_demux, i_size );
 621         memcpy( p_pkt->p_buffer, p, i_size);
 622
 623         /* Parse it and send it */
 624         switch( 0x100 | p[3] )
 625         {
 626         case 0x1b9:
 627         case 0x1bb:
 628         case 0x1bc:
 629
 630 #ifdef DVDREAD_DEBUG
 631             if( p[3] == 0xbc )
 632             {
 633                 msg_Warn( p_demux, "received a PSM packet" );
 634             }
 635             else if( p[3] == 0xbb )
 636             {
 637                 msg_Warn( p_demux, "received a SYSTEM packet" );
 638             }
 639 #endif
 640             block_Release( p_pkt );
 641             break;
 642
 643         case 0x1ba:
 644         {
 645             int64_t i_scr;
 646             int i_mux_rate;
 647             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 648             {
 649                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 650                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 651             }
 652             block_Release( p_pkt );
 653             break;
 654         }
 655         default:
 656         {
 657             int i_id = ps_pkt_id( p_pkt );
 658             if( i_id >= 0xc0 )
 659             {
 660                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 661
 662                 if( !tk->b_seen )
 663                 {
 664                     ESNew( p_demux, i_id, 0 );
 665                 }
 666                 if( tk->b_seen && tk->es &&
 667                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 668                 {
 669                     es_out_Send( p_demux->out, tk->es, p_pkt );
 670                 }
 671                 else
 672                 {
 673                     block_Release( p_pkt );
 674                 }
 675             }
 676             else
 677             {
 678                 block_Release( p_pkt );
 679             }
 680             break;
 681         }
 682         }
 683
 684         p += i_size;
 685     }
 686
 687     return VLC_SUCCESS;
 688 }
 689
 690 /*****************************************************************************
 691  * ESNew: register a new elementary stream
 692  *****************************************************************************/
 693 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 694 {
 695     demux_sys_t *p_sys = p_demux->p_sys;
 696     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 697     char psz_language[3];
 698
 699     if( tk->b_seen ) return;
 700
 701     if( ps_track_fill( tk, 0, i_id ) )
 702     {
 703         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 704         return;
 705     }
 706
 707     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 708     if( i_lang && i_lang != 0xffff )
 709     {
 710         psz_language[0] = (i_lang >> 8)&0xff;
 711         psz_language[1] = (i_lang     )&0xff;
 712     }
 713
 714     /* Add a new ES */
 715     if( tk->fmt.i_cat == VIDEO_ES )
 716     {
 717         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 718         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 719     }
 720     else if( tk->fmt.i_cat == AUDIO_ES )
 721     {
 722         int i_audio = -1;
 723         /* find the audio number PLEASE find another way */
 724         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 725         {
 726             i_audio = i_id&0x07;
 727         }
 728         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 729         {
 730             i_audio = i_id&0xf;
 731         }
 732         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 733         {
 734             i_audio = i_id&0x1f;
 735         }
 736         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 737         {
 738             i_audio = i_id&0x1f;
 739         }
 740
 741         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 742     }
 743     else if( tk->fmt.i_cat == SPU_ES )
 744     {
 745         /* Palette */
 746         tk->fmt.subs.spu.palette[0] = 0xBeef;
 747         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 748                 16 * sizeof( uint32_t ) );
 749
 750         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 751     }
 752
 753     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 754     tk->b_seen = true;
 755 }
 756
 757 /*****************************************************************************
 758  * DvdReadSetArea: initialize input data for title x, chapter y.
 759  * It should be called for each user navigation request.
 760  *****************************************************************************
 761  * Take care that i_title and i_chapter start from 0.
 762  *****************************************************************************/
 763 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 764                            int i_angle )
 765 {
 766     VLC_UNUSED( i_angle );
 767
 768     demux_sys_t *p_sys = p_demux->p_sys;
 769     int pgc_id = 0, pgn = 0;
 770     int i;
 771
 772 #define p_pgc p_sys->p_cur_pgc
 773 #define p_vmg p_sys->p_vmg_file
 774 #define p_vts p_sys->p_vts_file
 775
 776     if( i_title >= 0 && i_title < p_sys->i_titles &&
 777         i_title != p_sys->i_title )
 778     {
 779         int i_start_cell, i_end_cell;
 780
 781         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 782         if( p_vts != NULL ) ifoClose( p_vts );
 783         p_sys->i_title = i_title;
 784
 785         /*
 786          *  We have to load all title information
 787          */
 788         msg_Dbg( p_demux, "open VTS %d, for title %d",
 789                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 790
 791         /* Ifo vts */
 792         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 793                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 794         {
 795             msg_Err( p_demux, "fatal error in vts ifo" );
 796             return VLC_EGENERIC;
 797         }
 798
 799         /* Title position inside the selected vts */
 800         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 801
 802         /* Find title start/end */
 803         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 804         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 805         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 806
 807         p_sys->i_title_start_cell =
 808             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 809         p_sys->i_title_start_block =
 810             p_pgc->cell_playback[i_start_cell].first_sector;
 811
 812         p_sys->i_title_end_cell =
 813             i_end_cell = p_pgc->nr_of_cells - 1;
 814         p_sys->i_title_end_block =
 815             p_pgc->cell_playback[i_end_cell].last_sector;
 816
 817         p_sys->i_title_offset = 0;
 818
 819         p_sys->i_title_blocks = 0;
 820         for( i = i_start_cell; i <= i_end_cell; i++ )
 821         {
 822             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 823                 p_pgc->cell_playback[i].first_sector + 1;
 824         }
 825
 826         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 827                  "start %d end %d blocks: %d",
 828                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 829                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 830                  p_sys->i_title_blocks );
 831
 832         /*
 833          * Set properties for current chapter
 834          */
 835         p_sys->i_chapter = 0;
 836         p_sys->i_chapters =
 837             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 838
 839         pgc_id = p_vts->vts_ptt_srpt->title[
 840                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 841         pgn = p_vts->vts_ptt_srpt->title[
 842                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 843
 844         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 845         p_sys->i_pack_len = 0;
 846         p_sys->i_next_cell =
 847             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 848         DvdReadFindCell( p_demux );
 849
 850         p_sys->i_next_vobu = p_sys->i_cur_block =
 851             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 852
 853         /*
 854          * Angle management
 855          */
 856         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 857         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 858
 859         /*
 860          * We've got enough info, time to open the title set data.
 861          */
 862         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 863             p_vmg->tt_srpt->title[i_title].title_set_nr,
 864             DVD_READ_TITLE_VOBS ) ) )
 865         {
 866             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 867                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 868             return VLC_EGENERIC;
 869         }
 870
 871         //IfoPrintTitle( p_demux );
 872
 873         /*
 874          * Destroy obsolete ES by reinitializing program 0
 875          * and find all ES in title with ifo data
 876          */
 877         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 878
 879         for( i = 0; i < PS_TK_COUNT; i++ )
 880         {
 881             ps_track_t *tk = &p_sys->tk[i];
 882             if( tk->b_seen )
 883             {
 884                 es_format_Clean( &tk->fmt );
 885                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 886             }
 887             tk->b_seen = false;
 888         }
 889
 890         if( p_demux->info.i_title != i_title )
 891         {
 892             p_demux->info.i_update |=
 893                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 894             p_demux->info.i_title = i_title;
 895             p_demux->info.i_seekpoint = 0;
 896         }
 897
 898         /* TODO: re-add angles */
 899
 900
 901         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 902         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 903         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 904         int i_video_width;
 905         switch( p_attr->picture_size )
 906         {
 907         case 0:
 908             i_video_width = 720;
 909             break;
 910         case 1:
 911             i_video_width = 704;
 912             break;
 913         case 2:
 914             i_video_width = 352;
 915             break;
 916         default:
 917         case 3:
 918             i_video_width = 352;
 919             i_video_height /= 2;
 920             break;
 921         }
 922         switch( p_attr->display_aspect_ratio )
 923         {
 924         case 0:
 925             p_sys->i_sar_num = 4 * i_video_height;
 926             p_sys->i_sar_den = 3 * i_video_width;
 927             break;
 928         case 3:
 929             p_sys->i_sar_num = 16 * i_video_height;
 930             p_sys->i_sar_den =  9 * i_video_width;
 931             break;
 932         default:
 933             p_sys->i_sar_num = 0;
 934             p_sys->i_sar_den = 0;
 935             break;
 936         }
 937
 938 #define audio_control \
 939     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 940
 941         /* Audio ES, in the order they appear in the .ifo */
 942         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 943         {
 944             int i_position = 0;
 945             uint16_t i_id;
 946
 947             //IfoPrintAudio( p_demux, i );
 948
 949             /* Audio channel is active if first byte is 0x80 */
 950             if( audio_control & 0x8000 )
 951             {
 952                 i_position = ( audio_control & 0x7F00 ) >> 8;
 953
 954                 msg_Dbg( p_demux, "audio position  %d", i_position );
 955                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 956                 {
 957                 case 0x00: /* A52 */
 958                     i_id = (0x80 + i_position) | 0xbd00;
 959                     break;
 960                 case 0x02:
 961                 case 0x03: /* MPEG audio */
 962                     i_id = 0xc000 + i_position;
 963                     break;
 964                 case 0x04: /* LPCM */
 965                     i_id = (0xa0 + i_position) | 0xbd00;
 966                     break;
 967                 case 0x06: /* DTS */
 968                     i_id = (0x88 + i_position) | 0xbd00;
 969                     break;
 970                 default:
 971                     i_id = 0;
 972                     msg_Err( p_demux, "unknown audio type %.2x",
 973                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 974                 }
 975
 976                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 977                        vts_audio_attr[i - 1].lang_code );
 978             }
 979         }
 980 #undef audio_control
 981
 982 #define spu_palette \
 983     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 984
 985         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 986
 987 #define spu_control \
 988     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 989
 990         /* Sub Picture ES */
 991         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 992         {
 993             int i_position = 0;
 994             uint16_t i_id;
 995
 996             //IfoPrintSpu( p_sys, i );
 997             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 998
 999             if( spu_control & 0x80000000 )
1000             {
1001                 /*  there are several streams for one spu */
1002                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
1003                 {
1004                     /* 16:9 */
1005                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
1006                     {
1007                     case 1: /* letterbox */
1008                         i_position = spu_control & 0xff;
1009                         break;
1010                     case 2: /* pan&scan */
1011                         i_position = ( spu_control >> 8 ) & 0xff;
1012                         break;
1013                     default: /* widescreen */
1014                         i_position = ( spu_control >> 16 ) & 0xff;
1015                         break;
1016                     }
1017                 }
1018                 else
1019                 {
1020                     /* 4:3 */
1021                     i_position = ( spu_control >> 24 ) & 0x7F;
1022                 }
1023
1024                 i_id = (0x20 + i_position) | 0xbd00;
1025
1026                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
1027                        vts_subp_attr[i - 1].lang_code );
1028             }
1029         }
1030 #undef spu_control
1031
1032     }
1033     else if( i_title != -1 && i_title != p_sys->i_title )
1034
1035     {
1036         return VLC_EGENERIC; /* Couldn't set title */
1037     }
1038
1039     /*
1040      * Chapter selection
1041      */
1042
1043     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1044     {
1045         pgc_id = p_vts->vts_ptt_srpt->title[
1046                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1047         pgn = p_vts->vts_ptt_srpt->title[
1048                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1049
1050         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1051
1052         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1053         p_sys->i_chapter = i_chapter;
1054         DvdReadFindCell( p_demux );
1055
1056         p_sys->i_title_offset = 0;
1057         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1058         {
1059             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1060                 p_pgc->cell_playback[i].first_sector + 1;
1061         }
1062
1063         p_sys->i_pack_len = 0;
1064         p_sys->i_next_vobu = p_sys->i_cur_block =
1065             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1066
1067         if( p_demux->info.i_seekpoint != i_chapter )
1068         {
1069             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1070             p_demux->info.i_seekpoint = i_chapter;
1071         }
1072     }
1073     else if( i_chapter != -1 )
1074
1075     {
1076         return VLC_EGENERIC; /* Couldn't set chapter */
1077     }
1078
1079 #undef p_pgc
1080 #undef p_vts
1081 #undef p_vmg
1082
1083     return VLC_SUCCESS;
1084 }
1085
1086 /*****************************************************************************
1087  * DvdReadSeek : Goes to a given position on the stream.
1088  *****************************************************************************
1089  * This one is used by the input and translate chronological position from
1090  * input to logical position on the device.
1091  *****************************************************************************/
1092 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1093 {
1094     demux_sys_t *p_sys = p_demux->p_sys;
1095     int i_chapter = 0;
1096     int i_cell = 0;
1097     int i_vobu = 0;
1098     int i_sub_cell = 0;
1099     int i_block;
1100
1101 #define p_pgc p_sys->p_cur_pgc
1102 #define p_vts p_sys->p_vts_file
1103
1104     /* Find cell */
1105     i_block = i_block_offset;
1106     for( i_cell = p_sys->i_title_start_cell;
1107          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1108     {
1109         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1110             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1111
1112         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1113             p_pgc->cell_playback[i_cell].first_sector + 1);
1114     }
1115     if( i_cell > p_sys->i_title_end_cell )
1116     {
1117         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1118         return;
1119     }
1120     i_block += p_pgc->cell_playback[i_cell].first_sector;
1121     p_sys->i_title_offset = i_block_offset;
1122
1123     /* Find chapter */
1124     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1125     {
1126         int pgc_id, pgn, i_tmp;
1127
1128         pgc_id = p_vts->vts_ptt_srpt->title[
1129                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1130         pgn = p_vts->vts_ptt_srpt->title[
1131                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1132
1133         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1134
1135         if( i_tmp > i_cell ) break;
1136     }
1137
1138     if( i_chapter < p_sys->i_chapters &&
1139         p_demux->info.i_seekpoint != i_chapter )
1140     {
1141         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1142         p_demux->info.i_seekpoint = i_chapter;
1143     }
1144
1145     /* Find vobu */
1146     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1147     {
1148         i_vobu++;
1149     }
1150
1151     /* Find sub_cell */
1152     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1153            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1154     {
1155         i_sub_cell++;
1156     }
1157
1158 #if 1
1159     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1160              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1161              i_cell, i_sub_cell, i_chapter, i_vobu,
1162              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1163              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1164              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1165 #endif
1166
1167     p_sys->i_cur_block = i_block;
1168     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1169     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1170     p_sys->i_cur_cell = i_cell;
1171     p_sys->i_chapter = i_chapter;
1172     DvdReadFindCell( p_demux );
1173
1174 #undef p_vts
1175 #undef p_pgc
1176
1177     return;
1178 }
1179
1180 /*****************************************************************************
1181  * DvdReadHandleDSI
1182  *****************************************************************************/
1183 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1184 {
1185     demux_sys_t *p_sys = p_demux->p_sys;
1186
1187     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1188
1189     /*
1190      * Determine where we go next.  These values are the ones we mostly
1191      * care about.
1192      */
1193     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1194     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1195
1196     /*
1197      * Store the timecodes so we can get the current time
1198      */
1199     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1200     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1201
1202     /*
1203      * If we're not at the end of this cell, we can determine the next
1204      * VOBU to display using the VOBU_SRI information section of the
1205      * DSI.  Using this value correctly follows the current angle,
1206      * avoiding the doubled scenes in The Matrix, and makes our life
1207      * really happy.
1208      */
1209
1210     p_sys->i_next_vobu = p_sys->i_cur_block +
1211         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1212
1213     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1214         && p_sys->i_angle > 1 )
1215     {
1216         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1217         {
1218         case 0x4:
1219             /* Interleaved unit with no angle */
1220             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1221             {
1222                 p_sys->i_next_vobu = p_sys->i_cur_block +
1223                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1224                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1225             }
1226             else
1227             {
1228                 p_sys->i_next_vobu = p_sys->i_cur_block +
1229                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1230             }
1231             break;
1232         case 0x5:
1233             /* vobu is end of ilvu */
1234             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1235             {
1236                 p_sys->i_next_vobu = p_sys->i_cur_block +
1237                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1238                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1239
1240                 break;
1241             }
1242         case 0x6:
1243             /* vobu is beginning of ilvu */
1244         case 0x9:
1245             /* next scr is 0 */
1246         case 0xa:
1247             /* entering interleaved section */
1248         case 0x8:
1249             /* non interleaved cells in interleaved section */
1250         default:
1251             p_sys->i_next_vobu = p_sys->i_cur_block +
1252                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1253             break;
1254         }
1255     }
1256     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1257     {
1258         p_sys->i_cur_cell = p_sys->i_next_cell;
1259
1260         /* End of title */
1261         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1262
1263         DvdReadFindCell( p_demux );
1264
1265         p_sys->i_next_vobu =
1266             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1267
1268         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 );
1269     }
1270
1271
1272 #if 0
1273     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1274              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1275              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1276              p_sys->dsi_pack.dsi_gi.vobu_ea,
1277              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1278              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1279              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1280
1281     msg_Dbg( p_demux, "cell duration: %lld",
1282              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1283
1284     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1285              p_sys->dsi_pack.sml_pbi.category,
1286              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1287              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1288              p_sys->dsi_pack.sml_pbi.size );
1289
1290     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1291              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1292              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1293              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1294 #endif
1295 }
1296
1297 /*****************************************************************************
1298  * DvdReadFindCell
1299  *****************************************************************************/
1300 static void DvdReadFindCell( demux_t *p_demux )
1301 {
1302     demux_sys_t *p_sys = p_demux->p_sys;
1303
1304     pgc_t *p_pgc;
1305     int   pgc_id, pgn;
1306     int   i = 0;
1307
1308 #define cell p_sys->p_cur_pgc->cell_playback
1309
1310     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1311     {
1312         p_sys->i_cur_cell += p_sys->i_angle - 1;
1313
1314         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1315         {
1316             i++;
1317         }
1318         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1319     }
1320     else
1321     {
1322         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1323     }
1324
1325 #undef cell
1326
1327     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1328
1329     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1330                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1331     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1332               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1333     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1334
1335     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1336     {
1337         p_sys->i_chapter++;
1338
1339         if( p_sys->i_chapter < p_sys->i_chapters &&
1340             p_demux->info.i_seekpoint != p_sys->i_chapter )
1341         {
1342             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1343             p_demux->info.i_seekpoint = p_sys->i_chapter;
1344         }
1345     }
1346 }
1347
1348 /*****************************************************************************
1349  * DemuxTitles: get the titles/chapters structure
1350  *****************************************************************************/
1351 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1352 {
1353     VLC_UNUSED( pi_angle );
1354
1355     demux_sys_t *p_sys = p_demux->p_sys;
1356     input_title_t *t;
1357     seekpoint_t *s;
1358
1359     /* Find out number of titles/chapters */
1360 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1361
1362     int32_t i_titles = tt_srpt->nr_of_srpts;
1363     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1364
1365     for( int i = 0; i < i_titles; i++ )
1366     {
1367         int32_t i_chapters = 0;
1368         int j;
1369
1370         i_chapters = tt_srpt->title[i].nr_of_ptts;
1371         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1372
1373         t = vlc_input_title_New();
1374
1375         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1376         {
1377             s = vlc_seekpoint_New();
1378             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1379         }
1380
1381         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1382     }
1383
1384 #undef tt_srpt
1385 }