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