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
  39 #include <vlc_interface.h>
  40
  41 #include <vlc_iso_lang.h>
  42
  43 #include "../demux/ps.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #   include <unistd.h>
  47 #endif
  48
  49 #include <fcntl.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52
  53 #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 (DVD without 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_aspect;
 176
 177     /* SPU */
 178     uint32_t clut[16];
 179 };
 180
 181 static int Control   ( demux_t *, int, va_list );
 182 static int Demux     ( demux_t * );
 183 static int DemuxBlock( demux_t *, uint8_t *, int );
 184
 185 static void DemuxTitles( demux_t *, int * );
 186 static void ESNew( demux_t *, int, int );
 187
 188 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 189 static void DvdReadSeek     ( demux_t *, int );
 190 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 191 static void DvdReadFindCell ( demux_t * );
 192
 193 /*****************************************************************************
 194  * Open:
 195  *****************************************************************************/
 196 static int Open( vlc_object_t *p_this )
 197 {
 198     demux_t      *p_demux = (demux_t*)p_this;
 199     demux_sys_t  *p_sys;
 200     char         *psz_name;
 201     char         *psz_dvdcss_env;
 202     dvd_reader_t *p_dvdread;
 203     ifo_handle_t *p_vmg_file;
 204     vlc_value_t  val;
 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      * (FIXME: this creates a small memory leak) */
 227     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 228     if( psz_dvdcss_env && *psz_dvdcss_env )
 229     {
 230         char *psz_env;
 231
 232         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 233                           strlen( psz_dvdcss_env ) + 1 );
 234         if( !psz_env )
 235         {
 236             free( psz_dvdcss_env );
 237             return VLC_ENOMEM;
 238         }
 239
 240         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 241
 242         putenv( psz_env );
 243     }
 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         intf_UserFatal( p_demux, false, _("Playback failure"),
 251                         _("DVDRead could not open the disk \"%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_aspect = -1;
 270     p_sys->i_title_cur_time = (mtime_t) 0;
 271     p_sys->i_cell_cur_time = (mtime_t) 0;
 272     p_sys->i_cell_duration = (mtime_t) 0;
 273
 274     p_sys->p_dvdread = p_dvdread;
 275     p_sys->p_vmg_file = p_vmg_file;
 276     p_sys->p_title = NULL;
 277     p_sys->p_vts_file = NULL;
 278
 279     p_sys->i_title = p_sys->i_chapter = -1;
 280     p_sys->i_mux_rate = 0;
 281
 282     var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 283     var_Get( p_demux, "dvdread-angle", &val );
 284     p_sys->i_angle = val.i_int > 0 ? val.i_int : 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             intf_UserWarn( 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         intf_UserFatal( p_demux, false, _("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 < &pkt[i_pkt] )
 606     {
 607         int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
 608         block_t *p_pkt;
 609         if( i_size <= 0 )
 610         {
 611             break;
 612         }
 613
 614         /* Create a block */
 615         p_pkt = block_New( p_demux, i_size );
 616         memcpy( p_pkt->p_buffer, p, i_size);
 617
 618         /* Parse it and send it */
 619         switch( 0x100 | p[3] )
 620         {
 621         case 0x1b9:
 622         case 0x1bb:
 623         case 0x1bc:
 624
 625 #ifdef DVDREAD_DEBUG
 626             if( p[3] == 0xbc )
 627             {
 628                 msg_Warn( p_demux, "received a PSM packet" );
 629             }
 630             else if( p[3] == 0xbb )
 631             {
 632                 msg_Warn( p_demux, "received a SYSTEM packet" );
 633             }
 634 #endif
 635             block_Release( p_pkt );
 636             break;
 637
 638         case 0x1ba:
 639         {
 640             int64_t i_scr;
 641             int i_mux_rate;
 642             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 643             {
 644                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 645                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 646             }
 647             block_Release( p_pkt );
 648             break;
 649         }
 650         default:
 651         {
 652             int i_id = ps_pkt_id( p_pkt );
 653             if( i_id >= 0xc0 )
 654             {
 655                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 656
 657                 if( !tk->b_seen )
 658                 {
 659                     ESNew( p_demux, i_id, 0 );
 660                 }
 661                 if( tk->b_seen && tk->es &&
 662                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 663                 {
 664                     es_out_Send( p_demux->out, tk->es, p_pkt );
 665                 }
 666                 else
 667                 {
 668                     block_Release( p_pkt );
 669                 }
 670             }
 671             else
 672             {
 673                 block_Release( p_pkt );
 674             }
 675             break;
 676         }
 677         }
 678
 679         p += i_size;
 680     }
 681
 682     return VLC_SUCCESS;
 683 }
 684
 685 /*****************************************************************************
 686  * ESNew: register a new elementary stream
 687  *****************************************************************************/
 688 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 689 {
 690     demux_sys_t *p_sys = p_demux->p_sys;
 691     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 692     char psz_language[3];
 693
 694     if( tk->b_seen ) return;
 695
 696     if( ps_track_fill( tk, 0, i_id ) )
 697     {
 698         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 699         return;
 700     }
 701
 702     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 703     if( i_lang && i_lang != 0xffff )
 704     {
 705         psz_language[0] = (i_lang >> 8)&0xff;
 706         psz_language[1] = (i_lang     )&0xff;
 707     }
 708
 709     /* Add a new ES */
 710     if( tk->fmt.i_cat == VIDEO_ES )
 711     {
 712         if( p_sys->i_aspect >= 0 )
 713         {
 714             tk->fmt.video.i_aspect = p_sys->i_aspect;
 715         }
 716     }
 717     else if( tk->fmt.i_cat == AUDIO_ES )
 718     {
 719         int i_audio = -1;
 720         /* find the audio number PLEASE find another way */
 721         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 722         {
 723             i_audio = i_id&0x07;
 724         }
 725         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 726         {
 727             i_audio = i_id&0xf;
 728         }
 729         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 730         {
 731             i_audio = i_id&0x1f;
 732         }
 733         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 734         {
 735             i_audio = i_id&0x1f;
 736         }
 737
 738         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 739     }
 740     else if( tk->fmt.i_cat == SPU_ES )
 741     {
 742         /* Palette */
 743         tk->fmt.subs.spu.palette[0] = 0xBeef;
 744         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 745                 16 * sizeof( uint32_t ) );
 746
 747         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 748     }
 749
 750     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 751     tk->b_seen = true;
 752 }
 753
 754 /*****************************************************************************
 755  * DvdReadSetArea: initialize input data for title x, chapter y.
 756  * It should be called for each user navigation request.
 757  *****************************************************************************
 758  * Take care that i_title and i_chapter start from 0.
 759  *****************************************************************************/
 760 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 761                            int i_angle )
 762 {
 763     demux_sys_t *p_sys = p_demux->p_sys;
 764     int pgc_id = 0, pgn = 0;
 765     int i;
 766
 767 #define p_pgc p_sys->p_cur_pgc
 768 #define p_vmg p_sys->p_vmg_file
 769 #define p_vts p_sys->p_vts_file
 770
 771     if( i_title >= 0 && i_title < p_sys->i_titles &&
 772         i_title != p_sys->i_title )
 773     {
 774         int i_start_cell, i_end_cell;
 775
 776         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 777         if( p_vts != NULL ) ifoClose( p_vts );
 778         p_sys->i_title = i_title;
 779
 780         /*
 781          *  We have to load all title information
 782          */
 783         msg_Dbg( p_demux, "open VTS %d, for title %d",
 784                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 785
 786         /* Ifo vts */
 787         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 788                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 789         {
 790             msg_Err( p_demux, "fatal error in vts ifo" );
 791             return VLC_EGENERIC;
 792         }
 793
 794         /* Title position inside the selected vts */
 795         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 796
 797         /* Find title start/end */
 798         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 799         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 800         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 801
 802         p_sys->i_title_start_cell =
 803             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 804         p_sys->i_title_start_block =
 805             p_pgc->cell_playback[i_start_cell].first_sector;
 806
 807         p_sys->i_title_end_cell =
 808             i_end_cell = p_pgc->nr_of_cells - 1;
 809         p_sys->i_title_end_block =
 810             p_pgc->cell_playback[i_end_cell].last_sector;
 811
 812         p_sys->i_title_offset = 0;
 813
 814         p_sys->i_title_blocks = 0;
 815         for( i = i_start_cell; i <= i_end_cell; i++ )
 816         {
 817             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 818                 p_pgc->cell_playback[i].first_sector + 1;
 819         }
 820
 821         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 822                  "start %d end %d blocks: %d",
 823                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 824                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 825                  p_sys->i_title_blocks );
 826
 827         /*
 828          * Set properties for current chapter
 829          */
 830         p_sys->i_chapter = 0;
 831         p_sys->i_chapters =
 832             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 833
 834         pgc_id = p_vts->vts_ptt_srpt->title[
 835                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 836         pgn = p_vts->vts_ptt_srpt->title[
 837                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 838
 839         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 840         p_sys->i_pack_len = 0;
 841         p_sys->i_next_cell =
 842             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 843         DvdReadFindCell( p_demux );
 844
 845         p_sys->i_next_vobu = p_sys->i_cur_block =
 846             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 847
 848         /*
 849          * Angle management
 850          */
 851         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 852         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 853
 854         /*
 855          * We've got enough info, time to open the title set data.
 856          */
 857         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 858             p_vmg->tt_srpt->title[i_title].title_set_nr,
 859             DVD_READ_TITLE_VOBS ) ) )
 860         {
 861             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 862                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 863             return VLC_EGENERIC;
 864         }
 865
 866         //IfoPrintTitle( p_demux );
 867
 868         /*
 869          * Destroy obsolete ES by reinitializing program 0
 870          * and find all ES in title with ifo data
 871          */
 872         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 873
 874         for( i = 0; i < PS_TK_COUNT; i++ )
 875         {
 876             ps_track_t *tk = &p_sys->tk[i];
 877             if( tk->b_seen )
 878             {
 879                 es_format_Clean( &tk->fmt );
 880                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 881             }
 882             tk->b_seen = false;
 883         }
 884
 885         if( p_demux->info.i_title != i_title )
 886         {
 887             p_demux->info.i_update |=
 888                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 889             p_demux->info.i_title = i_title;
 890             p_demux->info.i_seekpoint = 0;
 891         }
 892
 893         /* TODO: re-add angles */
 894
 895
 896         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 897         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 898
 899 #define audio_control \
 900     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 901
 902         /* Audio ES, in the order they appear in the .ifo */
 903         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 904         {
 905             int i_position = 0;
 906             uint16_t i_id;
 907
 908             //IfoPrintAudio( p_demux, i );
 909
 910             /* Audio channel is active if first byte is 0x80 */
 911             if( audio_control & 0x8000 )
 912             {
 913                 i_position = ( audio_control & 0x7F00 ) >> 8;
 914
 915                 msg_Dbg( p_demux, "audio position  %d", i_position );
 916                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 917                 {
 918                 case 0x00: /* A52 */
 919                     i_id = (0x80 + i_position) | 0xbd00;
 920                     break;
 921                 case 0x02:
 922                 case 0x03: /* MPEG audio */
 923                     i_id = 0xc000 + i_position;
 924                     break;
 925                 case 0x04: /* LPCM */
 926                     i_id = (0xa0 + i_position) | 0xbd00;
 927                     break;
 928                 case 0x06: /* DTS */
 929                     i_id = (0x88 + i_position) | 0xbd00;
 930                     break;
 931                 default:
 932                     i_id = 0;
 933                     msg_Err( p_demux, "unknown audio type %.2x",
 934                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 935                 }
 936
 937                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 938                        vts_audio_attr[i - 1].lang_code );
 939             }
 940         }
 941 #undef audio_control
 942
 943 #define spu_palette \
 944     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 945
 946         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 947
 948 #define spu_control \
 949     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 950
 951         /* Sub Picture ES */
 952         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 953         {
 954             int i_position = 0;
 955             uint16_t i_id;
 956
 957             //IfoPrintSpu( p_sys, i );
 958             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 959
 960             if( spu_control & 0x80000000 )
 961             {
 962                 /*  there are several streams for one spu */
 963                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 964                 {
 965                     /* 16:9 */
 966                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 967                     {
 968                     case 1: /* letterbox */
 969                         i_position = spu_control & 0xff;
 970                         break;
 971                     case 2: /* pan&scan */
 972                         i_position = ( spu_control >> 8 ) & 0xff;
 973                         break;
 974                     default: /* widescreen */
 975                         i_position = ( spu_control >> 16 ) & 0xff;
 976                         break;
 977                     }
 978                 }
 979                 else
 980                 {
 981                     /* 4:3 */
 982                     i_position = ( spu_control >> 24 ) & 0x7F;
 983                 }
 984
 985                 i_id = (0x20 + i_position) | 0xbd00;
 986
 987                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 988                        vts_subp_attr[i - 1].lang_code );
 989             }
 990         }
 991 #undef spu_control
 992
 993     }
 994     else if( i_title != -1 && i_title != p_sys->i_title )
 995
 996     {
 997         return VLC_EGENERIC; /* Couldn't set title */
 998     }
 999
1000     /*
1001      * Chapter selection
1002      */
1003
1004     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1005     {
1006         pgc_id = p_vts->vts_ptt_srpt->title[
1007                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1008         pgn = p_vts->vts_ptt_srpt->title[
1009                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1010
1011         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1012
1013         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1014         p_sys->i_chapter = i_chapter;
1015         DvdReadFindCell( p_demux );
1016
1017         p_sys->i_title_offset = 0;
1018         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1019         {
1020             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1021                 p_pgc->cell_playback[i].first_sector + 1;
1022         }
1023
1024         p_sys->i_pack_len = 0;
1025         p_sys->i_next_vobu = p_sys->i_cur_block =
1026             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1027
1028         if( p_demux->info.i_seekpoint != i_chapter )
1029         {
1030             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1031             p_demux->info.i_seekpoint = i_chapter;
1032         }
1033     }
1034     else if( i_chapter != -1 )
1035
1036     {
1037         return VLC_EGENERIC; /* Couldn't set chapter */
1038     }
1039
1040 #undef p_pgc
1041 #undef p_vts
1042 #undef p_vmg
1043
1044     return VLC_SUCCESS;
1045 }
1046
1047 /*****************************************************************************
1048  * DvdReadSeek : Goes to a given position on the stream.
1049  *****************************************************************************
1050  * This one is used by the input and translate chronological position from
1051  * input to logical position on the device.
1052  *****************************************************************************/
1053 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1054 {
1055     demux_sys_t *p_sys = p_demux->p_sys;
1056     int i_chapter = 0;
1057     int i_cell = 0;
1058     int i_vobu = 0;
1059     int i_sub_cell = 0;
1060     int i_block;
1061
1062 #define p_pgc p_sys->p_cur_pgc
1063 #define p_vts p_sys->p_vts_file
1064
1065     /* Find cell */
1066     i_block = i_block_offset;
1067     for( i_cell = p_sys->i_title_start_cell;
1068          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1069     {
1070         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1071             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1072
1073         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1074             p_pgc->cell_playback[i_cell].first_sector + 1);
1075     }
1076     if( i_cell > p_sys->i_title_end_cell )
1077     {
1078         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1079         return;
1080     }
1081     i_block += p_pgc->cell_playback[i_cell].first_sector;
1082     p_sys->i_title_offset = i_block_offset;
1083
1084     /* Find chapter */
1085     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1086     {
1087         int pgc_id, pgn, i_tmp;
1088
1089         pgc_id = p_vts->vts_ptt_srpt->title[
1090                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1091         pgn = p_vts->vts_ptt_srpt->title[
1092                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1093
1094         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1095
1096         if( i_tmp > i_cell ) break;
1097     }
1098
1099     if( i_chapter < p_sys->i_chapters &&
1100         p_demux->info.i_seekpoint != i_chapter )
1101     {
1102         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1103         p_demux->info.i_seekpoint = i_chapter;
1104     }
1105
1106     /* Find vobu */
1107     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1108     {
1109         i_vobu++;
1110     }
1111
1112     /* Find sub_cell */
1113     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1114            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1115     {
1116         i_sub_cell++;
1117     }
1118
1119 #if 1
1120     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1121              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1122              i_cell, i_sub_cell, i_chapter, i_vobu,
1123              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1124              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1125              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1126 #endif
1127
1128     p_sys->i_cur_block = i_block;
1129     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1130     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1131     p_sys->i_cur_cell = i_cell;
1132     p_sys->i_chapter = i_chapter;
1133     DvdReadFindCell( p_demux );
1134
1135 #undef p_vts
1136 #undef p_pgc
1137
1138     return;
1139 }
1140
1141 /*****************************************************************************
1142  * DvdReadHandleDSI
1143  *****************************************************************************/
1144 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1145 {
1146     demux_sys_t *p_sys = p_demux->p_sys;
1147
1148     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1149
1150     /*
1151      * Determine where we go next.  These values are the ones we mostly
1152      * care about.
1153      */
1154     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1155     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1156
1157     /*
1158      * Store the timecodes so we can get the current time
1159      */
1160     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1161     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1162
1163     /*
1164      * If we're not at the end of this cell, we can determine the next
1165      * VOBU to display using the VOBU_SRI information section of the
1166      * DSI.  Using this value correctly follows the current angle,
1167      * avoiding the doubled scenes in The Matrix, and makes our life
1168      * really happy.
1169      */
1170
1171     p_sys->i_next_vobu = p_sys->i_cur_block +
1172         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1173
1174     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1175         && p_sys->i_angle > 1 )
1176     {
1177         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1178         {
1179         case 0x4:
1180             /* Interleaved unit with no angle */
1181             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1182             {
1183                 p_sys->i_next_vobu = p_sys->i_cur_block +
1184                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1185                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1186             }
1187             else
1188             {
1189                 p_sys->i_next_vobu = p_sys->i_cur_block +
1190                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1191             }
1192             break;
1193         case 0x5:
1194             /* vobu is end of ilvu */
1195             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1196             {
1197                 p_sys->i_next_vobu = p_sys->i_cur_block +
1198                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1199                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1200
1201                 break;
1202             }
1203         case 0x6:
1204             /* vobu is beginning of ilvu */
1205         case 0x9:
1206             /* next scr is 0 */
1207         case 0xa:
1208             /* entering interleaved section */
1209         case 0x8:
1210             /* non interleaved cells in interleaved section */
1211         default:
1212             p_sys->i_next_vobu = p_sys->i_cur_block +
1213                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1214             break;
1215         }
1216     }
1217     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1218     {
1219         p_sys->i_cur_cell = p_sys->i_next_cell;
1220
1221         /* End of title */
1222         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1223
1224         DvdReadFindCell( p_demux );
1225
1226         p_sys->i_next_vobu =
1227             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1228
1229         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 );
1230     }
1231
1232
1233 #if 0
1234     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1235              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1236              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1237              p_sys->dsi_pack.dsi_gi.vobu_ea,
1238              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1239              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1240              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1241
1242     msg_Dbg( p_demux, "cell duration: %lld",
1243              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1244
1245     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1246              p_sys->dsi_pack.sml_pbi.category,
1247              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1248              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1249              p_sys->dsi_pack.sml_pbi.size );
1250
1251     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1252              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1253              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1254              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1255 #endif
1256 }
1257
1258 /*****************************************************************************
1259  * DvdReadFindCell
1260  *****************************************************************************/
1261 static void DvdReadFindCell( demux_t *p_demux )
1262 {
1263     demux_sys_t *p_sys = p_demux->p_sys;
1264
1265     pgc_t *p_pgc;
1266     int   pgc_id, pgn;
1267     int   i = 0;
1268
1269 #define cell p_sys->p_cur_pgc->cell_playback
1270
1271     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1272     {
1273         p_sys->i_cur_cell += p_sys->i_angle - 1;
1274
1275         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1276         {
1277             i++;
1278         }
1279         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1280     }
1281     else
1282     {
1283         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1284     }
1285
1286 #undef cell
1287
1288     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1289
1290     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1291                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1292     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1293               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1294     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1295
1296     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1297     {
1298         p_sys->i_chapter++;
1299
1300         if( p_sys->i_chapter < p_sys->i_chapters &&
1301             p_demux->info.i_seekpoint != p_sys->i_chapter )
1302         {
1303             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1304             p_demux->info.i_seekpoint = p_sys->i_chapter;
1305         }
1306     }
1307 }
1308
1309 /*****************************************************************************
1310  * DemuxTitles: get the titles/chapters structure
1311  *****************************************************************************/
1312 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1313 {
1314     demux_sys_t *p_sys = p_demux->p_sys;
1315     input_title_t *t;
1316     seekpoint_t *s;
1317     int32_t i_titles;
1318     int i;
1319
1320     /* Find out number of titles/chapters */
1321 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1322
1323     i_titles = tt_srpt->nr_of_srpts;
1324     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1325
1326     for( i = 0; i < i_titles; i++ )
1327     {
1328         int32_t i_chapters = 0;
1329         int j;
1330
1331         i_chapters = tt_srpt->title[i].nr_of_ptts;
1332         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1333
1334         t = vlc_input_title_New();
1335
1336         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1337         {
1338             s = vlc_seekpoint_New();
1339             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1340         }
1341
1342         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1343     }
1344
1345 #undef tt_srpt
1346 }