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 <fcntl.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52
  53 #ifdef HAVE_DVDREAD_DVD_READER_H
  54   #include <dvdread/dvd_reader.h>
  55   #include <dvdread/ifo_types.h>
  56   #include <dvdread/ifo_read.h>
  57   #include <dvdread/nav_read.h>
  58   #include <dvdread/nav_print.h>
  59 #else
  60   #include <libdvdread/dvd_reader.h>
  61   #include <libdvdread/ifo_types.h>
  62   #include <libdvdread/ifo_read.h>
  63   #include <libdvdread/nav_read.h>
  64   #include <libdvdread/nav_print.h>
  65 #endif
  66
  67 #include <assert.h>
  68
  69 /*****************************************************************************
  70  * Module descriptor
  71  *****************************************************************************/
  72 #define ANGLE_TEXT N_("DVD angle")
  73 #define ANGLE_LONGTEXT N_( \
  74     "Default DVD angle." )
  75
  76 #define CACHING_TEXT N_("Caching value in ms")
  77 #define CACHING_LONGTEXT N_( \
  78     "Caching value for DVDs. " \
  79     "This value should be set in milliseconds." )
  80
  81 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  82 #define CSSMETHOD_LONGTEXT N_( \
  83     "Set the method used by libdvdcss for key decryption.\n" \
  84     "title: decrypted title key is guessed from the encrypted sectors of " \
  85            "the stream. Thus it should work with a file as well as the " \
  86            "DVD device. But it sometimes takes much time to decrypt a title " \
  87            "key and may even fail. With this method, the key is only checked "\
  88            "at the beginning of each title, so it won't work if the key " \
  89            "changes in the middle of a title.\n" \
  90     "disc: the disc key is first cracked, then all title keys can be " \
  91            "decrypted instantly, which allows us to check them often.\n" \
  92     "key: the same as \"disc\" if you don't have a file with player keys " \
  93            "at compilation time. If you do, the decryption of the disc key " \
  94            "will be faster with this method. It is the one that was used by " \
  95            "libcss.\n" \
  96     "The default method is: key.")
  97
  98 static const char *const psz_css_list[] = { "title", "disc", "key" };
  99 static const char *const psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
 100
 101 static int  Open ( vlc_object_t * );
 102 static void Close( vlc_object_t * );
 103
 104 vlc_module_begin ()
 105     set_shortname( N_("DVD without menus") )
 106     set_description( N_("DVDRead Input (no menu support)") )
 107     set_category( CAT_INPUT )
 108     set_subcategory( SUBCAT_INPUT_ACCESS )
 109     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
 110         ANGLE_LONGTEXT, false )
 111     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
 112         CACHING_TEXT, CACHING_LONGTEXT, true )
 113     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
 114                 CSSMETHOD_LONGTEXT, true )
 115         change_string_list( psz_css_list, psz_css_list_text, 0 )
 116     set_capability( "access_demux", 0 )
 117     add_shortcut( "dvd" )
 118     add_shortcut( "dvdread" )
 119     add_shortcut( "dvdsimple" )
 120     set_callbacks( Open, Close )
 121 vlc_module_end ()
 122
 123 /* how many blocks DVDRead will read in each loop */
 124 #define DVD_BLOCK_READ_ONCE 4
 125
 126 /*****************************************************************************
 127  * Local prototypes
 128  *****************************************************************************/
 129
 130 struct demux_sys_t
 131 {
 132     /* DVDRead state */
 133     dvd_reader_t *p_dvdread;
 134     dvd_file_t   *p_title;
 135
 136     ifo_handle_t *p_vmg_file;
 137     ifo_handle_t *p_vts_file;
 138
 139     int i_title;
 140     int i_chapter, i_chapters;
 141     int i_angle, i_angles;
 142
 143     tt_srpt_t    *p_tt_srpt;
 144     pgc_t        *p_cur_pgc;
 145     dsi_t        dsi_pack;
 146     int          i_ttn;
 147
 148     int i_pack_len;
 149     int i_cur_block;
 150     int i_next_vobu;
 151
 152     int i_mux_rate;
 153
 154     /* Current title start/end blocks */
 155     int i_title_start_block;
 156     int i_title_end_block;
 157     int i_title_blocks;
 158     int i_title_offset;
 159     mtime_t i_title_cur_time;
 160
 161     int i_title_start_cell;
 162     int i_title_end_cell;
 163     int i_cur_cell;
 164     int i_next_cell;
 165     mtime_t i_cell_cur_time;
 166     mtime_t i_cell_duration;
 167
 168     /* Track */
 169     ps_track_t    tk[PS_TK_COUNT];
 170
 171     int           i_titles;
 172     input_title_t **titles;
 173
 174     /* Video */
 175     int i_sar_num;
 176     int i_sar_den;
 177
 178     /* SPU */
 179     uint32_t clut[16];
 180 };
 181
 182 static int Control   ( demux_t *, int, va_list );
 183 static int Demux     ( demux_t * );
 184 static int DemuxBlock( demux_t *, uint8_t *, int );
 185
 186 static void DemuxTitles( demux_t *, int * );
 187 static void ESNew( demux_t *, int, int );
 188
 189 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 190 static void DvdReadSeek     ( demux_t *, int );
 191 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 192 static void DvdReadFindCell ( demux_t * );
 193
 194 /*****************************************************************************
 195  * Open:
 196  *****************************************************************************/
 197 static int Open( vlc_object_t *p_this )
 198 {
 199     demux_t      *p_demux = (demux_t*)p_this;
 200     demux_sys_t  *p_sys;
 201     char         *psz_name;
 202     char         *psz_dvdcss_env;
 203     dvd_reader_t *p_dvdread;
 204     ifo_handle_t *p_vmg_file;
 205
 206     if( !p_demux->psz_path || !*p_demux->psz_path )
 207     {
 208         /* Only when selected */
 209         if( !p_this->b_force ) return VLC_EGENERIC;
 210
 211         psz_name = var_CreateGetString( p_this, "dvd" );
 212         if( !psz_name )
 213         {
 214             psz_name = strdup("");
 215         }
 216     }
 217     else
 218         psz_name = ToLocaleDup( p_demux->psz_path );
 219
 220 #ifdef WIN32
 221     if( psz_name[0] && psz_name[1] == ':' &&
 222         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 223 #endif
 224
 225     /* Override environment variable DVDCSS_METHOD with config option */
 226     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 227     if( psz_dvdcss_env && *psz_dvdcss_env )
 228 #ifdef HAVE_SETENV
 229         setenv( "DVDCSS_METHOD", psz_dvdcss_env, 1 );
 230 #else
 231     {
 232         /* FIXME: this create a small memory leak */
 233         char *psz_env;
 234         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 235                           strlen( psz_dvdcss_env ) + 1 );
 236         if( !psz_env )
 237         {
 238             free( psz_dvdcss_env );
 239             return VLC_ENOMEM;
 240         }
 241         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 242         putenv( psz_env );
 243     }
 244 #endif
 245     free( psz_dvdcss_env );
 246
 247     /* Open dvdread */
 248     if( !(p_dvdread = DVDOpen( psz_name )) )
 249     {
 250         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 251         dialog_Fatal( p_demux, _("Playback failure"),
 252                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 253         free( psz_name );
 254         return VLC_EGENERIC;
 255     }
 256     free( psz_name );
 257
 258     /* Ifo allocation & initialisation */
 259     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 260     {
 261         msg_Warn( p_demux, "cannot open VMG info" );
 262         return VLC_EGENERIC;
 263     }
 264     msg_Dbg( p_demux, "VMG opened" );
 265
 266     /* Fill p_demux field */
 267     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 268
 269     ps_track_init( p_sys->tk );
 270     p_sys->i_sar_num = 0;
 271     p_sys->i_sar_den = 0;
 272     p_sys->i_title_cur_time = (mtime_t) 0;
 273     p_sys->i_cell_cur_time = (mtime_t) 0;
 274     p_sys->i_cell_duration = (mtime_t) 0;
 275
 276     p_sys->p_dvdread = p_dvdread;
 277     p_sys->p_vmg_file = p_vmg_file;
 278     p_sys->p_title = NULL;
 279     p_sys->p_vts_file = NULL;
 280
 281     p_sys->i_title = p_sys->i_chapter = -1;
 282     p_sys->i_mux_rate = 0;
 283
 284     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 285     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 286
 287     DemuxTitles( p_demux, &p_sys->i_angle );
 288     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 289     {
 290         Close( p_this );
 291         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 292                  p_sys->i_angle );
 293         return VLC_EGENERIC;
 294     }
 295
 296     /* Update default_pts to a suitable value for dvdread access */
 297     var_Create( p_demux, "dvdread-caching",
 298                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 299
 300     return VLC_SUCCESS;
 301 }
 302
 303 /*****************************************************************************
 304  * Close:
 305  *****************************************************************************/
 306 static void Close( vlc_object_t *p_this )
 307 {
 308     demux_t     *p_demux = (demux_t*)p_this;
 309     demux_sys_t *p_sys = p_demux->p_sys;
 310     int i;
 311
 312     for( i = 0; i < PS_TK_COUNT; i++ )
 313     {
 314         ps_track_t *tk = &p_sys->tk[i];
 315         if( tk->b_seen )
 316         {
 317             es_format_Clean( &tk->fmt );
 318             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 319         }
 320     }
 321
 322     /* Close libdvdread */
 323     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 324     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 325     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 326     DVDClose( p_sys->p_dvdread );
 327
 328     free( p_sys );
 329 }
 330
 331 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 332 {
 333 /* Macro to convert Binary Coded Decimal to Decimal */
 334 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 335
 336     double f_fps, f_ms;
 337     int64_t i_micro_second = 0;
 338
 339     if (still_time == 0 || still_time == 0xFF)
 340     {
 341         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 342         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 343         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 344
 345         switch((dtime->frame_u & 0xc0) >> 6)
 346         {
 347         case 1:
 348             f_fps = 25.0;
 349             break;
 350         case 3:
 351             f_fps = 29.97;
 352             break;
 353         default:
 354             f_fps = 2500.0;
 355             break;
 356         }
 357         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 358         i_micro_second += (int64_t)(f_ms * 1000.0);
 359     }
 360     else
 361     {
 362         i_micro_second = still_time;
 363         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 364     }
 365
 366     return i_micro_second;
 367 }
 368
 369 /*****************************************************************************
 370  * Control:
 371  *****************************************************************************/
 372 static int Control( demux_t *p_demux, int i_query, va_list args )
 373 {
 374     demux_sys_t *p_sys = p_demux->p_sys;
 375     double f, *pf;
 376     bool *pb;
 377     int64_t *pi64;
 378     input_title_t ***ppp_title;
 379     int *pi_int;
 380     int i;
 381
 382     switch( i_query )
 383     {
 384         case DEMUX_GET_POSITION:
 385         {
 386             pf = (double*) va_arg( args, double* );
 387
 388             if( p_sys->i_title_blocks > 0 )
 389                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 390             else
 391                 *pf = 0.0;
 392
 393             return VLC_SUCCESS;
 394         }
 395         case DEMUX_SET_POSITION:
 396         {
 397             f = (double)va_arg( args, double );
 398
 399             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 400
 401             return VLC_SUCCESS;
 402         }
 403         case DEMUX_GET_TIME:
 404             pi64 = (int64_t*)va_arg( args, int64_t * );
 405             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 406             {
 407                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 408                         p_sys->i_title_blocks * p_sys->i_title_offset;
 409                 return VLC_SUCCESS;
 410             }
 411             *pi64 = 0;
 412             return VLC_EGENERIC;
 413
 414         case DEMUX_GET_LENGTH:
 415             pi64 = (int64_t*)va_arg( args, int64_t * );
 416             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 417             {
 418                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 419                 return VLC_SUCCESS;
 420             }
 421             *pi64 = 0;
 422             return VLC_EGENERIC;
 423
 424         /* Special for access_demux */
 425         case DEMUX_CAN_PAUSE:
 426         case DEMUX_CAN_SEEK:
 427         case DEMUX_CAN_CONTROL_PACE:
 428             /* TODO */
 429             pb = (bool*)va_arg( args, bool * );
 430             *pb = true;
 431             return VLC_SUCCESS;
 432
 433         case DEMUX_SET_PAUSE_STATE:
 434             return VLC_SUCCESS;
 435
 436         case DEMUX_GET_TITLE_INFO:
 437             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 438             pi_int    = (int*)va_arg( args, int* );
 439             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 440             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 441
 442             /* Duplicate title infos */
 443             *pi_int = p_sys->i_titles;
 444             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 445             for( i = 0; i < p_sys->i_titles; i++ )
 446             {
 447                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 448             }
 449             return VLC_SUCCESS;
 450
 451         case DEMUX_SET_TITLE:
 452             i = (int)va_arg( args, int );
 453             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 454             {
 455                 msg_Warn( p_demux, "cannot set title/chapter" );
 456                 return VLC_EGENERIC;
 457             }
 458             p_demux->info.i_update |=
 459                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 460             p_demux->info.i_title = i;
 461             p_demux->info.i_seekpoint = 0;
 462             return VLC_SUCCESS;
 463
 464         case DEMUX_SET_SEEKPOINT:
 465             i = (int)va_arg( args, int );
 466             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 467             {
 468                 msg_Warn( p_demux, "cannot set title/chapter" );
 469                 return VLC_EGENERIC;
 470             }
 471             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 472             p_demux->info.i_seekpoint = i;
 473             return VLC_SUCCESS;
 474
 475         case DEMUX_GET_PTS_DELAY:
 476             pi64 = (int64_t*)va_arg( args, int64_t * );
 477             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 478             return VLC_SUCCESS;
 479
 480         /* TODO implement others */
 481         default:
 482             return VLC_EGENERIC;
 483     }
 484 }
 485
 486 /*****************************************************************************
 487  * Demux:
 488  *****************************************************************************/
 489 static int Demux( demux_t *p_demux )
 490 {
 491     demux_sys_t *p_sys = p_demux->p_sys;
 492
 493     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 494     int i_blocks_once, i_read;
 495     int i;
 496
 497     /*
 498      * Playback by cell in this pgc, starting at the cell for our chapter.
 499      */
 500
 501     /*
 502      * Check end of pack, and select the following one
 503      */
 504     if( !p_sys->i_pack_len )
 505     {
 506         /* Read NAV packet */
 507         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 508                            1, p_buffer ) != 1 )
 509         {
 510             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 511             dialog_Fatal( p_demux, _("Playback failure"),
 512                           _("DVDRead could not read block %d."),
 513                           p_sys->i_next_vobu );
 514             return -1;
 515         }
 516
 517         /* Basic check to be sure we don't have a empty title
 518          * go to next title if so */
 519         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 520
 521         /* Parse the contained dsi packet */
 522         DvdReadHandleDSI( p_demux, p_buffer );
 523
 524         /* End of title */
 525         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 526         {
 527             if( p_sys->i_title + 1 >= p_sys->i_titles )
 528             {
 529                 return 0; /* EOF */
 530             }
 531
 532             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 533         }
 534
 535         if( p_sys->i_pack_len >= 1024 )
 536         {
 537             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 538                      "This shouldn't happen!", p_sys->i_pack_len );
 539             return 0; /* EOF */
 540         }
 541
 542         /* FIXME: Ugly kludge: we send the pack block to the input for it
 543          * sometimes has a zero scr and restart the sync */
 544         p_sys->i_cur_block++;
 545         p_sys->i_title_offset++;
 546
 547         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 548     }
 549
 550     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 551     {
 552         if( p_sys->i_title + 1 >= p_sys->i_titles )
 553         {
 554             return 0; /* EOF */
 555         }
 556
 557         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 558     }
 559
 560     /*
 561      * Read actual data
 562      */
 563     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 564     p_sys->i_pack_len -= i_blocks_once;
 565
 566     /* Reads from DVD */
 567     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 568                             i_blocks_once, p_buffer );
 569     if( i_read != i_blocks_once )
 570     {
 571         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 572                  i_read, i_blocks_once, p_sys->i_cur_block );
 573         dialog_Fatal( p_demux, _("Playback failure"),
 574                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 575                         i_read, i_blocks_once, p_sys->i_cur_block );
 576         return -1;
 577     }
 578
 579     p_sys->i_cur_block += i_read;
 580     p_sys->i_title_offset += i_read;
 581
 582 #if 0
 583     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 584              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 585 #endif
 586
 587     for( i = 0; i < i_read; i++ )
 588     {
 589         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 590                     DVD_VIDEO_LB_LEN );
 591     }
 592
 593 #undef p_pgc
 594
 595     return 1;
 596 }
 597
 598 /*****************************************************************************
 599  * DemuxBlock: demux a given block
 600  *****************************************************************************/
 601 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 602 {
 603     demux_sys_t *p_sys = p_demux->p_sys;
 604     uint8_t     *p = pkt;
 605
 606     while( p && p < &pkt[i_pkt] )
 607     {
 608         block_t *p_pkt;
 609         int i_size = &pkt[i_pkt] - p;
 610
 611         if( i_size < 6 )
 612             break;
 613
 614         i_size = ps_pkt_size( p, i_size );
 615         if( i_size <= 0 )
 616         {
 617             break;
 618         }
 619
 620         /* Create a block */
 621         p_pkt = block_New( p_demux, i_size );
 622         memcpy( p_pkt->p_buffer, p, i_size);
 623
 624         /* Parse it and send it */
 625         switch( 0x100 | p[3] )
 626         {
 627         case 0x1b9:
 628         case 0x1bb:
 629         case 0x1bc:
 630
 631 #ifdef DVDREAD_DEBUG
 632             if( p[3] == 0xbc )
 633             {
 634                 msg_Warn( p_demux, "received a PSM packet" );
 635             }
 636             else if( p[3] == 0xbb )
 637             {
 638                 msg_Warn( p_demux, "received a SYSTEM packet" );
 639             }
 640 #endif
 641             block_Release( p_pkt );
 642             break;
 643
 644         case 0x1ba:
 645         {
 646             int64_t i_scr;
 647             int i_mux_rate;
 648             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 649             {
 650                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 651                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 652             }
 653             block_Release( p_pkt );
 654             break;
 655         }
 656         default:
 657         {
 658             int i_id = ps_pkt_id( p_pkt );
 659             if( i_id >= 0xc0 )
 660             {
 661                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 662
 663                 if( !tk->b_seen )
 664                 {
 665                     ESNew( p_demux, i_id, 0 );
 666                 }
 667                 if( tk->b_seen && tk->es &&
 668                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 669                 {
 670                     es_out_Send( p_demux->out, tk->es, p_pkt );
 671                 }
 672                 else
 673                 {
 674                     block_Release( p_pkt );
 675                 }
 676             }
 677             else
 678             {
 679                 block_Release( p_pkt );
 680             }
 681             break;
 682         }
 683         }
 684
 685         p += i_size;
 686     }
 687
 688     return VLC_SUCCESS;
 689 }
 690
 691 /*****************************************************************************
 692  * ESNew: register a new elementary stream
 693  *****************************************************************************/
 694 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 695 {
 696     demux_sys_t *p_sys = p_demux->p_sys;
 697     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 698     char psz_language[3];
 699
 700     if( tk->b_seen ) return;
 701
 702     if( ps_track_fill( tk, 0, i_id ) )
 703     {
 704         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 705         return;
 706     }
 707
 708     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 709     if( i_lang && i_lang != 0xffff )
 710     {
 711         psz_language[0] = (i_lang >> 8)&0xff;
 712         psz_language[1] = (i_lang     )&0xff;
 713     }
 714
 715     /* Add a new ES */
 716     if( tk->fmt.i_cat == VIDEO_ES )
 717     {
 718         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 719         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 720     }
 721     else if( tk->fmt.i_cat == AUDIO_ES )
 722     {
 723         int i_audio = -1;
 724         /* find the audio number PLEASE find another way */
 725         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 726         {
 727             i_audio = i_id&0x07;
 728         }
 729         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 730         {
 731             i_audio = i_id&0xf;
 732         }
 733         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 734         {
 735             i_audio = i_id&0x1f;
 736         }
 737         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 738         {
 739             i_audio = i_id&0x1f;
 740         }
 741
 742         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 743     }
 744     else if( tk->fmt.i_cat == SPU_ES )
 745     {
 746         /* Palette */
 747         tk->fmt.subs.spu.palette[0] = 0xBeef;
 748         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 749                 16 * sizeof( uint32_t ) );
 750
 751         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 752     }
 753
 754     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 755     tk->b_seen = true;
 756 }
 757
 758 /*****************************************************************************
 759  * DvdReadSetArea: initialize input data for title x, chapter y.
 760  * It should be called for each user navigation request.
 761  *****************************************************************************
 762  * Take care that i_title and i_chapter start from 0.
 763  *****************************************************************************/
 764 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 765                            int i_angle )
 766 {
 767     VLC_UNUSED( i_angle );
 768
 769     demux_sys_t *p_sys = p_demux->p_sys;
 770     int pgc_id = 0, pgn = 0;
 771     int i;
 772
 773 #define p_pgc p_sys->p_cur_pgc
 774 #define p_vmg p_sys->p_vmg_file
 775 #define p_vts p_sys->p_vts_file
 776
 777     if( i_title >= 0 && i_title < p_sys->i_titles &&
 778         i_title != p_sys->i_title )
 779     {
 780         int i_start_cell, i_end_cell;
 781
 782         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 783         if( p_vts != NULL ) ifoClose( p_vts );
 784         p_sys->i_title = i_title;
 785
 786         /*
 787          *  We have to load all title information
 788          */
 789         msg_Dbg( p_demux, "open VTS %d, for title %d",
 790                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 791
 792         /* Ifo vts */
 793         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 794                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 795         {
 796             msg_Err( p_demux, "fatal error in vts ifo" );
 797             return VLC_EGENERIC;
 798         }
 799
 800         /* Title position inside the selected vts */
 801         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 802
 803         /* Find title start/end */
 804         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 805         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 806         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 807
 808         p_sys->i_title_start_cell =
 809             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 810         p_sys->i_title_start_block =
 811             p_pgc->cell_playback[i_start_cell].first_sector;
 812
 813         p_sys->i_title_end_cell =
 814             i_end_cell = p_pgc->nr_of_cells - 1;
 815         p_sys->i_title_end_block =
 816             p_pgc->cell_playback[i_end_cell].last_sector;
 817
 818         p_sys->i_title_offset = 0;
 819
 820         p_sys->i_title_blocks = 0;
 821         for( i = i_start_cell; i <= i_end_cell; i++ )
 822         {
 823             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 824                 p_pgc->cell_playback[i].first_sector + 1;
 825         }
 826
 827         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 828                  "start %d end %d blocks: %d",
 829                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 830                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 831                  p_sys->i_title_blocks );
 832
 833         /*
 834          * Set properties for current chapter
 835          */
 836         p_sys->i_chapter = 0;
 837         p_sys->i_chapters =
 838             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 839
 840         pgc_id = p_vts->vts_ptt_srpt->title[
 841                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 842         pgn = p_vts->vts_ptt_srpt->title[
 843                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 844
 845         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 846         p_sys->i_pack_len = 0;
 847         p_sys->i_next_cell =
 848             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 849         DvdReadFindCell( p_demux );
 850
 851         p_sys->i_next_vobu = p_sys->i_cur_block =
 852             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 853
 854         /*
 855          * Angle management
 856          */
 857         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 858         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 859
 860         /*
 861          * We've got enough info, time to open the title set data.
 862          */
 863         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 864             p_vmg->tt_srpt->title[i_title].title_set_nr,
 865             DVD_READ_TITLE_VOBS ) ) )
 866         {
 867             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 868                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 869             return VLC_EGENERIC;
 870         }
 871
 872         //IfoPrintTitle( p_demux );
 873
 874         /*
 875          * Destroy obsolete ES by reinitializing program 0
 876          * and find all ES in title with ifo data
 877          */
 878         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 879
 880         for( i = 0; i < PS_TK_COUNT; i++ )
 881         {
 882             ps_track_t *tk = &p_sys->tk[i];
 883             if( tk->b_seen )
 884             {
 885                 es_format_Clean( &tk->fmt );
 886                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 887             }
 888             tk->b_seen = false;
 889         }
 890
 891         if( p_demux->info.i_title != i_title )
 892         {
 893             p_demux->info.i_update |=
 894                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 895             p_demux->info.i_title = i_title;
 896             p_demux->info.i_seekpoint = 0;
 897         }
 898
 899         /* TODO: re-add angles */
 900
 901
 902         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 903         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 904         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 905         int i_video_width;
 906         switch( p_attr->picture_size )
 907         {
 908         case 0:
 909             i_video_width = 720;
 910             break;
 911         case 1:
 912             i_video_width = 704;
 913             break;
 914         case 2:
 915             i_video_width = 352;
 916             break;
 917         default:
 918         case 3:
 919             i_video_width = 352;
 920             i_video_height /= 2;
 921             break;
 922         }
 923         switch( p_attr->display_aspect_ratio )
 924         {
 925         case 0:
 926             p_sys->i_sar_num = 4 * i_video_height;
 927             p_sys->i_sar_den = 3 * i_video_width;
 928             break;
 929         case 3:
 930             p_sys->i_sar_num = 16 * i_video_height;
 931             p_sys->i_sar_den =  9 * i_video_width;
 932             break;
 933         default:
 934             p_sys->i_sar_num = 0;
 935             p_sys->i_sar_den = 0;
 936             break;
 937         }
 938
 939 #define audio_control \
 940     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 941
 942         /* Audio ES, in the order they appear in the .ifo */
 943         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 944         {
 945             int i_position = 0;
 946             uint16_t i_id;
 947
 948             //IfoPrintAudio( p_demux, i );
 949
 950             /* Audio channel is active if first byte is 0x80 */
 951             if( audio_control & 0x8000 )
 952             {
 953                 i_position = ( audio_control & 0x7F00 ) >> 8;
 954
 955                 msg_Dbg( p_demux, "audio position  %d", i_position );
 956                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 957                 {
 958                 case 0x00: /* A52 */
 959                     i_id = (0x80 + i_position) | 0xbd00;
 960                     break;
 961                 case 0x02:
 962                 case 0x03: /* MPEG audio */
 963                     i_id = 0xc000 + i_position;
 964                     break;
 965                 case 0x04: /* LPCM */
 966                     i_id = (0xa0 + i_position) | 0xbd00;
 967                     break;
 968                 case 0x06: /* DTS */
 969                     i_id = (0x88 + i_position) | 0xbd00;
 970                     break;
 971                 default:
 972                     i_id = 0;
 973                     msg_Err( p_demux, "unknown audio type %.2x",
 974                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 975                 }
 976
 977                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 978                        vts_audio_attr[i - 1].lang_code );
 979             }
 980         }
 981 #undef audio_control
 982
 983 #define spu_palette \
 984     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 985
 986         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 987
 988 #define spu_control \
 989     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 990
 991         /* Sub Picture ES */
 992         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 993         {
 994             int i_position = 0;
 995             uint16_t i_id;
 996
 997             //IfoPrintSpu( p_sys, i );
 998             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 999
1000             if( spu_control & 0x80000000 )
1001             {
1002                 /*  there are several streams for one spu */
1003                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
1004                 {
1005                     /* 16:9 */
1006                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
1007                     {
1008                     case 1: /* letterbox */
1009                         i_position = spu_control & 0xff;
1010                         break;
1011                     case 2: /* pan&scan */
1012                         i_position = ( spu_control >> 8 ) & 0xff;
1013                         break;
1014                     default: /* widescreen */
1015                         i_position = ( spu_control >> 16 ) & 0xff;
1016                         break;
1017                     }
1018                 }
1019                 else
1020                 {
1021                     /* 4:3 */
1022                     i_position = ( spu_control >> 24 ) & 0x7F;
1023                 }
1024
1025                 i_id = (0x20 + i_position) | 0xbd00;
1026
1027                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
1028                        vts_subp_attr[i - 1].lang_code );
1029             }
1030         }
1031 #undef spu_control
1032
1033     }
1034     else if( i_title != -1 && i_title != p_sys->i_title )
1035
1036     {
1037         return VLC_EGENERIC; /* Couldn't set title */
1038     }
1039
1040     /*
1041      * Chapter selection
1042      */
1043
1044     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1045     {
1046         pgc_id = p_vts->vts_ptt_srpt->title[
1047                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1048         pgn = p_vts->vts_ptt_srpt->title[
1049                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1050
1051         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1052
1053         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1054         p_sys->i_chapter = i_chapter;
1055         DvdReadFindCell( p_demux );
1056
1057         p_sys->i_title_offset = 0;
1058         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1059         {
1060             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1061                 p_pgc->cell_playback[i].first_sector + 1;
1062         }
1063
1064         p_sys->i_pack_len = 0;
1065         p_sys->i_next_vobu = p_sys->i_cur_block =
1066             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1067
1068         if( p_demux->info.i_seekpoint != i_chapter )
1069         {
1070             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1071             p_demux->info.i_seekpoint = i_chapter;
1072         }
1073     }
1074     else if( i_chapter != -1 )
1075
1076     {
1077         return VLC_EGENERIC; /* Couldn't set chapter */
1078     }
1079
1080 #undef p_pgc
1081 #undef p_vts
1082 #undef p_vmg
1083
1084     return VLC_SUCCESS;
1085 }
1086
1087 /*****************************************************************************
1088  * DvdReadSeek : Goes to a given position on the stream.
1089  *****************************************************************************
1090  * This one is used by the input and translate chronological position from
1091  * input to logical position on the device.
1092  *****************************************************************************/
1093 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1094 {
1095     demux_sys_t *p_sys = p_demux->p_sys;
1096     int i_chapter = 0;
1097     int i_cell = 0;
1098     int i_vobu = 0;
1099     int i_sub_cell = 0;
1100     int i_block;
1101
1102 #define p_pgc p_sys->p_cur_pgc
1103 #define p_vts p_sys->p_vts_file
1104
1105     /* Find cell */
1106     i_block = i_block_offset;
1107     for( i_cell = p_sys->i_title_start_cell;
1108          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1109     {
1110         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1111             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1112
1113         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1114             p_pgc->cell_playback[i_cell].first_sector + 1);
1115     }
1116     if( i_cell > p_sys->i_title_end_cell )
1117     {
1118         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1119         return;
1120     }
1121     i_block += p_pgc->cell_playback[i_cell].first_sector;
1122     p_sys->i_title_offset = i_block_offset;
1123
1124     /* Find chapter */
1125     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1126     {
1127         int pgc_id, pgn, i_tmp;
1128
1129         pgc_id = p_vts->vts_ptt_srpt->title[
1130                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1131         pgn = p_vts->vts_ptt_srpt->title[
1132                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1133
1134         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1135
1136         if( i_tmp > i_cell ) break;
1137     }
1138
1139     if( i_chapter < p_sys->i_chapters &&
1140         p_demux->info.i_seekpoint != i_chapter )
1141     {
1142         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1143         p_demux->info.i_seekpoint = i_chapter;
1144     }
1145
1146     /* Find vobu */
1147     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1148     {
1149         i_vobu++;
1150     }
1151
1152     /* Find sub_cell */
1153     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1154            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1155     {
1156         i_sub_cell++;
1157     }
1158
1159 #if 1
1160     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1161              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1162              i_cell, i_sub_cell, i_chapter, i_vobu,
1163              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1164              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1165              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1166 #endif
1167
1168     p_sys->i_cur_block = i_block;
1169     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1170     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1171     p_sys->i_cur_cell = i_cell;
1172     p_sys->i_chapter = i_chapter;
1173     DvdReadFindCell( p_demux );
1174
1175 #undef p_vts
1176 #undef p_pgc
1177
1178     return;
1179 }
1180
1181 /*****************************************************************************
1182  * DvdReadHandleDSI
1183  *****************************************************************************/
1184 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1185 {
1186     demux_sys_t *p_sys = p_demux->p_sys;
1187
1188     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1189
1190     /*
1191      * Determine where we go next.  These values are the ones we mostly
1192      * care about.
1193      */
1194     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1195     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1196
1197     /*
1198      * Store the timecodes so we can get the current time
1199      */
1200     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1201     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1202
1203     /*
1204      * If we're not at the end of this cell, we can determine the next
1205      * VOBU to display using the VOBU_SRI information section of the
1206      * DSI.  Using this value correctly follows the current angle,
1207      * avoiding the doubled scenes in The Matrix, and makes our life
1208      * really happy.
1209      */
1210
1211     p_sys->i_next_vobu = p_sys->i_cur_block +
1212         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1213
1214     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1215         && p_sys->i_angle > 1 )
1216     {
1217         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1218         {
1219         case 0x4:
1220             /* Interleaved unit with no angle */
1221             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1222             {
1223                 p_sys->i_next_vobu = p_sys->i_cur_block +
1224                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1225                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1226             }
1227             else
1228             {
1229                 p_sys->i_next_vobu = p_sys->i_cur_block +
1230                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1231             }
1232             break;
1233         case 0x5:
1234             /* vobu is end of ilvu */
1235             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1236             {
1237                 p_sys->i_next_vobu = p_sys->i_cur_block +
1238                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1239                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1240
1241                 break;
1242             }
1243         case 0x6:
1244             /* vobu is beginning of ilvu */
1245         case 0x9:
1246             /* next scr is 0 */
1247         case 0xa:
1248             /* entering interleaved section */
1249         case 0x8:
1250             /* non interleaved cells in interleaved section */
1251         default:
1252             p_sys->i_next_vobu = p_sys->i_cur_block +
1253                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1254             break;
1255         }
1256     }
1257     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1258     {
1259         p_sys->i_cur_cell = p_sys->i_next_cell;
1260
1261         /* End of title */
1262         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1263
1264         DvdReadFindCell( p_demux );
1265
1266         p_sys->i_next_vobu =
1267             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1268
1269         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 );
1270     }
1271
1272
1273 #if 0
1274     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1275              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1276              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1277              p_sys->dsi_pack.dsi_gi.vobu_ea,
1278              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1279              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1280              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1281
1282     msg_Dbg( p_demux, "cell duration: %lld",
1283              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1284
1285     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1286              p_sys->dsi_pack.sml_pbi.category,
1287              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1288              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1289              p_sys->dsi_pack.sml_pbi.size );
1290
1291     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1292              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1293              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1294              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1295 #endif
1296 }
1297
1298 /*****************************************************************************
1299  * DvdReadFindCell
1300  *****************************************************************************/
1301 static void DvdReadFindCell( demux_t *p_demux )
1302 {
1303     demux_sys_t *p_sys = p_demux->p_sys;
1304
1305     pgc_t *p_pgc;
1306     int   pgc_id, pgn;
1307     int   i = 0;
1308
1309 #define cell p_sys->p_cur_pgc->cell_playback
1310
1311     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1312     {
1313         p_sys->i_cur_cell += p_sys->i_angle - 1;
1314
1315         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1316         {
1317             i++;
1318         }
1319         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1320     }
1321     else
1322     {
1323         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1324     }
1325
1326 #undef cell
1327
1328     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1329
1330     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1331                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1332     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1333               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1334     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1335
1336     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1337     {
1338         p_sys->i_chapter++;
1339
1340         if( p_sys->i_chapter < p_sys->i_chapters &&
1341             p_demux->info.i_seekpoint != p_sys->i_chapter )
1342         {
1343             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1344             p_demux->info.i_seekpoint = p_sys->i_chapter;
1345         }
1346     }
1347 }
1348
1349 /*****************************************************************************
1350  * DemuxTitles: get the titles/chapters structure
1351  *****************************************************************************/
1352 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1353 {
1354     VLC_UNUSED( pi_angle );
1355
1356     demux_sys_t *p_sys = p_demux->p_sys;
1357     input_title_t *t;
1358     seekpoint_t *s;
1359
1360     /* Find out number of titles/chapters */
1361 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1362
1363     int32_t i_titles = tt_srpt->nr_of_srpts;
1364     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1365
1366     for( int i = 0; i < i_titles; i++ )
1367     {
1368         int32_t i_chapters = 0;
1369         int j;
1370
1371         i_chapters = tt_srpt->title[i].nr_of_ptts;
1372         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1373
1374         t = vlc_input_title_New();
1375
1376         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1377         {
1378             s = vlc_seekpoint_New();
1379             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1380         }
1381
1382         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1383     }
1384
1385 #undef tt_srpt
1386 }