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