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