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