git.sesse.net Git - vlc/blob - modules/access/dvdread.c

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_input.h>
  36 #include <vlc_access.h>
  37 #include <vlc_charset.h>
  38 #include <vlc_interface.h>
  39 #include <vlc_dialog.h>
  40
  41 #include <vlc_iso_lang.h>
  42
  43 #include "../demux/ps.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #   include <unistd.h>
  47 #endif
  48
  49 #include <fcntl.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52
  53 #ifdef HAVE_DVDREAD_DVD_READER_H
  54   #include <dvdread/dvd_reader.h>
  55   #include <dvdread/ifo_types.h>
  56   #include <dvdread/ifo_read.h>
  57   #include <dvdread/nav_read.h>
  58   #include <dvdread/nav_print.h>
  59 #else
  60   #include <libdvdread/dvd_reader.h>
  61   #include <libdvdread/ifo_types.h>
  62   #include <libdvdread/ifo_read.h>
  63   #include <libdvdread/nav_read.h>
  64   #include <libdvdread/nav_print.h>
  65 #endif
  66
  67 #include <assert.h>
  68
  69 /*****************************************************************************
  70  * Module descriptor
  71  *****************************************************************************/
  72 #define ANGLE_TEXT N_("DVD angle")
  73 #define ANGLE_LONGTEXT N_( \
  74     "Default DVD angle." )
  75
  76 #define CACHING_TEXT N_("Caching value in ms")
  77 #define CACHING_LONGTEXT N_( \
  78     "Caching value for DVDs. " \
  79     "This value should be set in milliseconds." )
  80
  81 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  82 #define CSSMETHOD_LONGTEXT N_( \
  83     "Set the method used by libdvdcss for key decryption.\n" \
  84     "title: decrypted title key is guessed from the encrypted sectors of " \
  85            "the stream. Thus it should work with a file as well as the " \
  86            "DVD device. But it sometimes takes much time to decrypt a title " \
  87            "key and may even fail. With this method, the key is only checked "\
  88            "at the beginning of each title, so it won't work if the key " \
  89            "changes in the middle of a title.\n" \
  90     "disc: the disc key is first cracked, then all title keys can be " \
  91            "decrypted instantly, which allows us to check them often.\n" \
  92     "key: the same as \"disc\" if you don't have a file with player keys " \
  93            "at compilation time. If you do, the decryption of the disc key " \
  94            "will be faster with this method. It is the one that was used by " \
  95            "libcss.\n" \
  96     "The default method is: key.")
  97
  98 static const char *const psz_css_list[] = { "title", "disc", "key" };
  99 static const char *const psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
 100
 101 static int  Open ( vlc_object_t * );
 102 static void Close( vlc_object_t * );
 103
 104 vlc_module_begin ()
 105     set_shortname( N_("DVD without menus") )
 106     set_description( N_("DVDRead Input (no menu support)") )
 107     set_category( CAT_INPUT )
 108     set_subcategory( SUBCAT_INPUT_ACCESS )
 109     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
 110         ANGLE_LONGTEXT, false )
 111     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
 112         CACHING_TEXT, CACHING_LONGTEXT, true )
 113     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
 114                 CSSMETHOD_LONGTEXT, true )
 115         change_string_list( psz_css_list, psz_css_list_text, 0 )
 116     set_capability( "access_demux", 0 )
 117     add_shortcut( "dvd" )
 118     add_shortcut( "dvdread" )
 119     add_shortcut( "dvdsimple" )
 120     set_callbacks( Open, Close )
 121 vlc_module_end ()
 122
 123 /* how many blocks DVDRead will read in each loop */
 124 #define DVD_BLOCK_READ_ONCE 4
 125
 126 /*****************************************************************************
 127  * Local prototypes
 128  *****************************************************************************/
 129
 130 struct demux_sys_t
 131 {
 132     /* DVDRead state */
 133     dvd_reader_t *p_dvdread;
 134     dvd_file_t   *p_title;
 135
 136     ifo_handle_t *p_vmg_file;
 137     ifo_handle_t *p_vts_file;
 138
 139     int i_title;
 140     int i_chapter, i_chapters;
 141     int i_angle, i_angles;
 142
 143     tt_srpt_t    *p_tt_srpt;
 144     pgc_t        *p_cur_pgc;
 145     dsi_t        dsi_pack;
 146     int          i_ttn;
 147
 148     int i_pack_len;
 149     int i_cur_block;
 150     int i_next_vobu;
 151
 152     int i_mux_rate;
 153
 154     /* Current title start/end blocks */
 155     int i_title_start_block;
 156     int i_title_end_block;
 157     int i_title_blocks;
 158     int i_title_offset;
 159     mtime_t i_title_cur_time;
 160
 161     int i_title_start_cell;
 162     int i_title_end_cell;
 163     int i_cur_cell;
 164     int i_next_cell;
 165     mtime_t i_cell_cur_time;
 166     mtime_t i_cell_duration;
 167
 168     /* Track */
 169     ps_track_t    tk[PS_TK_COUNT];
 170
 171     int           i_titles;
 172     input_title_t **titles;
 173
 174     /* Video */
 175     int i_aspect;
 176
 177     /* SPU */
 178     uint32_t clut[16];
 179 };
 180
 181 static int Control   ( demux_t *, int, va_list );
 182 static int Demux     ( demux_t * );
 183 static int DemuxBlock( demux_t *, uint8_t *, int );
 184
 185 static void DemuxTitles( demux_t *, int * );
 186 static void ESNew( demux_t *, int, int );
 187
 188 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 189 static void DvdReadSeek     ( demux_t *, int );
 190 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 191 static void DvdReadFindCell ( demux_t * );
 192
 193 /*****************************************************************************
 194  * Open:
 195  *****************************************************************************/
 196 static int Open( vlc_object_t *p_this )
 197 {
 198     demux_t      *p_demux = (demux_t*)p_this;
 199     demux_sys_t  *p_sys;
 200     char         *psz_name;
 201     char         *psz_dvdcss_env;
 202     dvd_reader_t *p_dvdread;
 203     ifo_handle_t *p_vmg_file;
 204     vlc_value_t  val;
 205
 206     if( !p_demux->psz_path || !*p_demux->psz_path )
 207     {
 208         /* Only when selected */
 209         if( !p_this->b_force ) return VLC_EGENERIC;
 210
 211         psz_name = var_CreateGetString( p_this, "dvd" );
 212         if( !psz_name )
 213         {
 214             psz_name = strdup("");
 215         }
 216     }
 217     else
 218         psz_name = ToLocaleDup( p_demux->psz_path );
 219
 220 #ifdef WIN32
 221     if( psz_name[0] && psz_name[1] == ':' &&
 222         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 223 #endif
 224
 225     /* Override environment variable DVDCSS_METHOD with config option */
 226     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 227     if( psz_dvdcss_env && *psz_dvdcss_env )
 228 #ifdef HAVE_SETENV
 229         setenv( "DVDCSS_METHOD", psz_dvdcss_env, 1 );
 230 #else
 231     {
 232         /* FIXME: this create a small memory leak */
 233         char *psz_env;
 234         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 235                           strlen( psz_dvdcss_env ) + 1 );
 236         if( !psz_env )
 237         {
 238             free( psz_dvdcss_env );
 239             return VLC_ENOMEM;
 240         }
 241         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 242         putenv( psz_env );
 243     }
 244 #endif
 245     free( psz_dvdcss_env );
 246
 247     /* Open dvdread */
 248     if( !(p_dvdread = DVDOpen( psz_name )) )
 249     {
 250         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 251         dialog_Fatal( p_demux, _("Playback failure"),
 252                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 253         free( psz_name );
 254         return VLC_EGENERIC;
 255     }
 256     free( psz_name );
 257
 258     /* Ifo allocation & initialisation */
 259     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 260     {
 261         msg_Warn( p_demux, "cannot open VMG info" );
 262         return VLC_EGENERIC;
 263     }
 264     msg_Dbg( p_demux, "VMG opened" );
 265
 266     /* Fill p_demux field */
 267     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 268
 269     ps_track_init( p_sys->tk );
 270     p_sys->i_aspect = -1;
 271     p_sys->i_title_cur_time = (mtime_t) 0;
 272     p_sys->i_cell_cur_time = (mtime_t) 0;
 273     p_sys->i_cell_duration = (mtime_t) 0;
 274
 275     p_sys->p_dvdread = p_dvdread;
 276     p_sys->p_vmg_file = p_vmg_file;
 277     p_sys->p_title = NULL;
 278     p_sys->p_vts_file = NULL;
 279
 280     p_sys->i_title = p_sys->i_chapter = -1;
 281     p_sys->i_mux_rate = 0;
 282
 283     var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 284     var_Get( p_demux, "dvdread-angle", &val );
 285     p_sys->i_angle = val.i_int > 0 ? val.i_int : 1;
 286
 287     DemuxTitles( p_demux, &p_sys->i_angle );
 288     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 289     {
 290         Close( p_this );
 291         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 292                  p_sys->i_angle );
 293         return VLC_EGENERIC;
 294     }
 295
 296     /* Update default_pts to a suitable value for dvdread access */
 297     var_Create( p_demux, "dvdread-caching",
 298                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 299
 300     return VLC_SUCCESS;
 301 }
 302
 303 /*****************************************************************************
 304  * Close:
 305  *****************************************************************************/
 306 static void Close( vlc_object_t *p_this )
 307 {
 308     demux_t     *p_demux = (demux_t*)p_this;
 309     demux_sys_t *p_sys = p_demux->p_sys;
 310     int i;
 311
 312     for( i = 0; i < PS_TK_COUNT; i++ )
 313     {
 314         ps_track_t *tk = &p_sys->tk[i];
 315         if( tk->b_seen )
 316         {
 317             es_format_Clean( &tk->fmt );
 318             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 319         }
 320     }
 321
 322     /* Close libdvdread */
 323     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 324     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 325     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 326     DVDClose( p_sys->p_dvdread );
 327
 328     free( p_sys );
 329 }
 330
 331 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 332 {
 333 /* Macro to convert Binary Coded Decimal to Decimal */
 334 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 335
 336     double f_fps, f_ms;
 337     int64_t i_micro_second = 0;
 338
 339     if (still_time == 0 || still_time == 0xFF)
 340     {
 341         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 342         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 343         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 344
 345         switch((dtime->frame_u & 0xc0) >> 6)
 346         {
 347         case 1:
 348             f_fps = 25.0;
 349             break;
 350         case 3:
 351             f_fps = 29.97;
 352             break;
 353         default:
 354             f_fps = 2500.0;
 355             break;
 356         }
 357         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 358         i_micro_second += (int64_t)(f_ms * 1000.0);
 359     }
 360     else
 361     {
 362         i_micro_second = still_time;
 363         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 364     }
 365
 366     return i_micro_second;
 367 }
 368
 369 /*****************************************************************************
 370  * Control:
 371  *****************************************************************************/
 372 static int Control( demux_t *p_demux, int i_query, va_list args )
 373 {
 374     demux_sys_t *p_sys = p_demux->p_sys;
 375     double f, *pf;
 376     bool *pb;
 377     int64_t *pi64;
 378     input_title_t ***ppp_title;
 379     int *pi_int;
 380     int i;
 381
 382     switch( i_query )
 383     {
 384         case DEMUX_GET_POSITION:
 385         {
 386             pf = (double*) va_arg( args, double* );
 387
 388             if( p_sys->i_title_blocks > 0 )
 389                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 390             else
 391                 *pf = 0.0;
 392
 393             return VLC_SUCCESS;
 394         }
 395         case DEMUX_SET_POSITION:
 396         {
 397             f = (double)va_arg( args, double );
 398
 399             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 400
 401             return VLC_SUCCESS;
 402         }
 403         case DEMUX_GET_TIME:
 404             pi64 = (int64_t*)va_arg( args, int64_t * );
 405             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 406             {
 407                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 408                         p_sys->i_title_blocks * p_sys->i_title_offset;
 409                 return VLC_SUCCESS;
 410             }
 411             *pi64 = 0;
 412             return VLC_EGENERIC;
 413
 414         case DEMUX_GET_LENGTH:
 415             pi64 = (int64_t*)va_arg( args, int64_t * );
 416             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 417             {
 418                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 419                 return VLC_SUCCESS;
 420             }
 421             *pi64 = 0;
 422             return VLC_EGENERIC;
 423
 424         /* Special for access_demux */
 425         case DEMUX_CAN_PAUSE:
 426         case DEMUX_CAN_SEEK:
 427         case DEMUX_CAN_CONTROL_PACE:
 428             /* TODO */
 429             pb = (bool*)va_arg( args, bool * );
 430             *pb = true;
 431             return VLC_SUCCESS;
 432
 433         case DEMUX_SET_PAUSE_STATE:
 434             return VLC_SUCCESS;
 435
 436         case DEMUX_GET_TITLE_INFO:
 437             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 438             pi_int    = (int*)va_arg( args, int* );
 439             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 440             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 441
 442             /* Duplicate title infos */
 443             *pi_int = p_sys->i_titles;
 444             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 445             for( i = 0; i < p_sys->i_titles; i++ )
 446             {
 447                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 448             }
 449             return VLC_SUCCESS;
 450
 451         case DEMUX_SET_TITLE:
 452             i = (int)va_arg( args, int );
 453             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 454             {
 455                 msg_Warn( p_demux, "cannot set title/chapter" );
 456                 return VLC_EGENERIC;
 457             }
 458             p_demux->info.i_update |=
 459                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 460             p_demux->info.i_title = i;
 461             p_demux->info.i_seekpoint = 0;
 462             return VLC_SUCCESS;
 463
 464         case DEMUX_SET_SEEKPOINT:
 465             i = (int)va_arg( args, int );
 466             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 467             {
 468                 msg_Warn( p_demux, "cannot set title/chapter" );
 469                 return VLC_EGENERIC;
 470             }
 471             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 472             p_demux->info.i_seekpoint = i;
 473             return VLC_SUCCESS;
 474
 475         case DEMUX_GET_PTS_DELAY:
 476             pi64 = (int64_t*)va_arg( args, int64_t * );
 477             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 478             return VLC_SUCCESS;
 479
 480         /* TODO implement others */
 481         default:
 482             return VLC_EGENERIC;
 483     }
 484 }
 485
 486 /*****************************************************************************
 487  * Demux:
 488  *****************************************************************************/
 489 static int Demux( demux_t *p_demux )
 490 {
 491     demux_sys_t *p_sys = p_demux->p_sys;
 492
 493     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 494     int i_blocks_once, i_read;
 495     int i;
 496
 497     /*
 498      * Playback by cell in this pgc, starting at the cell for our chapter.
 499      */
 500
 501     /*
 502      * Check end of pack, and select the following one
 503      */
 504     if( !p_sys->i_pack_len )
 505     {
 506         /* Read NAV packet */
 507         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 508                            1, p_buffer ) != 1 )
 509         {
 510             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 511             dialog_Fatal( p_demux, _("Playback failure"),
 512                           _("DVDRead could not read block %d."),
 513                           p_sys->i_next_vobu );
 514             return -1;
 515         }
 516
 517         /* Basic check to be sure we don't have a empty title
 518          * go to next title if so */
 519         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 520
 521         /* Parse the contained dsi packet */
 522         DvdReadHandleDSI( p_demux, p_buffer );
 523
 524         /* End of title */
 525         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 526         {
 527             if( p_sys->i_title + 1 >= p_sys->i_titles )
 528             {
 529                 return 0; /* EOF */
 530             }
 531
 532             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 533         }
 534
 535         if( p_sys->i_pack_len >= 1024 )
 536         {
 537             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 538                      "This shouldn't happen!", p_sys->i_pack_len );
 539             return 0; /* EOF */
 540         }
 541
 542         /* FIXME: Ugly kludge: we send the pack block to the input for it
 543          * sometimes has a zero scr and restart the sync */
 544         p_sys->i_cur_block++;
 545         p_sys->i_title_offset++;
 546
 547         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 548     }
 549
 550     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 551     {
 552         if( p_sys->i_title + 1 >= p_sys->i_titles )
 553         {
 554             return 0; /* EOF */
 555         }
 556
 557         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 558     }
 559
 560     /*
 561      * Read actual data
 562      */
 563     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 564     p_sys->i_pack_len -= i_blocks_once;
 565
 566     /* Reads from DVD */
 567     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 568                             i_blocks_once, p_buffer );
 569     if( i_read != i_blocks_once )
 570     {
 571         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 572                  i_read, i_blocks_once, p_sys->i_cur_block );
 573         dialog_Fatal( p_demux, _("Playback failure"),
 574                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 575                         i_read, i_blocks_once, p_sys->i_cur_block );
 576         return -1;
 577     }
 578
 579     p_sys->i_cur_block += i_read;
 580     p_sys->i_title_offset += i_read;
 581
 582 #if 0
 583     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 584              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 585 #endif
 586
 587     for( i = 0; i < i_read; i++ )
 588     {
 589         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 590                     DVD_VIDEO_LB_LEN );
 591     }
 592
 593 #undef p_pgc
 594
 595     return 1;
 596 }
 597
 598 /*****************************************************************************
 599  * DemuxBlock: demux a given block
 600  *****************************************************************************/
 601 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 602 {
 603     demux_sys_t *p_sys = p_demux->p_sys;
 604     uint8_t     *p = pkt;
 605
 606     while( p && p < &pkt[i_pkt] )
 607     {
 608         block_t *p_pkt;
 609         int i_size = &pkt[i_pkt] - p;
 610
 611         if( i_size < 6 )
 612             break;
 613
 614         i_size = ps_pkt_size( p, i_size );
 615         if( i_size <= 0 )
 616         {
 617             break;
 618         }
 619
 620         /* Create a block */
 621         p_pkt = block_New( p_demux, i_size );
 622         memcpy( p_pkt->p_buffer, p, i_size);
 623
 624         /* Parse it and send it */
 625         switch( 0x100 | p[3] )
 626         {
 627         case 0x1b9:
 628         case 0x1bb:
 629         case 0x1bc:
 630
 631 #ifdef DVDREAD_DEBUG
 632             if( p[3] == 0xbc )
 633             {
 634                 msg_Warn( p_demux, "received a PSM packet" );
 635             }
 636             else if( p[3] == 0xbb )
 637             {
 638                 msg_Warn( p_demux, "received a SYSTEM packet" );
 639             }
 640 #endif
 641             block_Release( p_pkt );
 642             break;
 643
 644         case 0x1ba:
 645         {
 646             int64_t i_scr;
 647             int i_mux_rate;
 648             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 649             {
 650                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 651                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 652             }
 653             block_Release( p_pkt );
 654             break;
 655         }
 656         default:
 657         {
 658             int i_id = ps_pkt_id( p_pkt );
 659             if( i_id >= 0xc0 )
 660             {
 661                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 662
 663                 if( !tk->b_seen )
 664                 {
 665                     ESNew( p_demux, i_id, 0 );
 666                 }
 667                 if( tk->b_seen && tk->es &&
 668                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 669                 {
 670                     es_out_Send( p_demux->out, tk->es, p_pkt );
 671                 }
 672                 else
 673                 {
 674                     block_Release( p_pkt );
 675                 }
 676             }
 677             else
 678             {
 679                 block_Release( p_pkt );
 680             }
 681             break;
 682         }
 683         }
 684
 685         p += i_size;
 686     }
 687
 688     return VLC_SUCCESS;
 689 }
 690
 691 /*****************************************************************************
 692  * ESNew: register a new elementary stream
 693  *****************************************************************************/
 694 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 695 {
 696     demux_sys_t *p_sys = p_demux->p_sys;
 697     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 698     char psz_language[3];
 699
 700     if( tk->b_seen ) return;
 701
 702     if( ps_track_fill( tk, 0, i_id ) )
 703     {
 704         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 705         return;
 706     }
 707
 708     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 709     if( i_lang && i_lang != 0xffff )
 710     {
 711         psz_language[0] = (i_lang >> 8)&0xff;
 712         psz_language[1] = (i_lang     )&0xff;
 713     }
 714
 715     /* Add a new ES */
 716     if( tk->fmt.i_cat == VIDEO_ES )
 717     {
 718         switch( p_sys->i_aspect )
 719         {
 720         case 1: tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR; break;
 721         case 2: tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR * 4 / 3; break;
 722         case 3: tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR * 16 / 9; break;
 723         case 4: tk->fmt.video.i_aspect = VOUT_ASPECT_FACTOR * 221 / 10; break;
 724         default:
 725             tk->fmt.video.i_aspect = 0;
 726             break;
 727         }
 728     }
 729     else if( tk->fmt.i_cat == AUDIO_ES )
 730     {
 731         int i_audio = -1;
 732         /* find the audio number PLEASE find another way */
 733         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 734         {
 735             i_audio = i_id&0x07;
 736         }
 737         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 738         {
 739             i_audio = i_id&0xf;
 740         }
 741         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 742         {
 743             i_audio = i_id&0x1f;
 744         }
 745         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 746         {
 747             i_audio = i_id&0x1f;
 748         }
 749
 750         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 751     }
 752     else if( tk->fmt.i_cat == SPU_ES )
 753     {
 754         /* Palette */
 755         tk->fmt.subs.spu.palette[0] = 0xBeef;
 756         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 757                 16 * sizeof( uint32_t ) );
 758
 759         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 760     }
 761
 762     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 763     tk->b_seen = true;
 764 }
 765
 766 /*****************************************************************************
 767  * DvdReadSetArea: initialize input data for title x, chapter y.
 768  * It should be called for each user navigation request.
 769  *****************************************************************************
 770  * Take care that i_title and i_chapter start from 0.
 771  *****************************************************************************/
 772 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 773                            int i_angle )
 774 {
 775     VLC_UNUSED( i_angle );
 776
 777     demux_sys_t *p_sys = p_demux->p_sys;
 778     int pgc_id = 0, pgn = 0;
 779     int i;
 780
 781 #define p_pgc p_sys->p_cur_pgc
 782 #define p_vmg p_sys->p_vmg_file
 783 #define p_vts p_sys->p_vts_file
 784
 785     if( i_title >= 0 && i_title < p_sys->i_titles &&
 786         i_title != p_sys->i_title )
 787     {
 788         int i_start_cell, i_end_cell;
 789
 790         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 791         if( p_vts != NULL ) ifoClose( p_vts );
 792         p_sys->i_title = i_title;
 793
 794         /*
 795          *  We have to load all title information
 796          */
 797         msg_Dbg( p_demux, "open VTS %d, for title %d",
 798                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 799
 800         /* Ifo vts */
 801         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 802                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 803         {
 804             msg_Err( p_demux, "fatal error in vts ifo" );
 805             return VLC_EGENERIC;
 806         }
 807
 808         /* Title position inside the selected vts */
 809         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 810
 811         /* Find title start/end */
 812         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 813         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 814         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 815
 816         p_sys->i_title_start_cell =
 817             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 818         p_sys->i_title_start_block =
 819             p_pgc->cell_playback[i_start_cell].first_sector;
 820
 821         p_sys->i_title_end_cell =
 822             i_end_cell = p_pgc->nr_of_cells - 1;
 823         p_sys->i_title_end_block =
 824             p_pgc->cell_playback[i_end_cell].last_sector;
 825
 826         p_sys->i_title_offset = 0;
 827
 828         p_sys->i_title_blocks = 0;
 829         for( i = i_start_cell; i <= i_end_cell; i++ )
 830         {
 831             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 832                 p_pgc->cell_playback[i].first_sector + 1;
 833         }
 834
 835         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 836                  "start %d end %d blocks: %d",
 837                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 838                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 839                  p_sys->i_title_blocks );
 840
 841         /*
 842          * Set properties for current chapter
 843          */
 844         p_sys->i_chapter = 0;
 845         p_sys->i_chapters =
 846             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 847
 848         pgc_id = p_vts->vts_ptt_srpt->title[
 849                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 850         pgn = p_vts->vts_ptt_srpt->title[
 851                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 852
 853         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 854         p_sys->i_pack_len = 0;
 855         p_sys->i_next_cell =
 856             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 857         DvdReadFindCell( p_demux );
 858
 859         p_sys->i_next_vobu = p_sys->i_cur_block =
 860             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 861
 862         /*
 863          * Angle management
 864          */
 865         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 866         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 867
 868         /*
 869          * We've got enough info, time to open the title set data.
 870          */
 871         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 872             p_vmg->tt_srpt->title[i_title].title_set_nr,
 873             DVD_READ_TITLE_VOBS ) ) )
 874         {
 875             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 876                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 877             return VLC_EGENERIC;
 878         }
 879
 880         //IfoPrintTitle( p_demux );
 881
 882         /*
 883          * Destroy obsolete ES by reinitializing program 0
 884          * and find all ES in title with ifo data
 885          */
 886         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 887
 888         for( i = 0; i < PS_TK_COUNT; i++ )
 889         {
 890             ps_track_t *tk = &p_sys->tk[i];
 891             if( tk->b_seen )
 892             {
 893                 es_format_Clean( &tk->fmt );
 894                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 895             }
 896             tk->b_seen = false;
 897         }
 898
 899         if( p_demux->info.i_title != i_title )
 900         {
 901             p_demux->info.i_update |=
 902                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 903             p_demux->info.i_title = i_title;
 904             p_demux->info.i_seekpoint = 0;
 905         }
 906
 907         /* TODO: re-add angles */
 908
 909
 910         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 911         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 912
 913 #define audio_control \
 914     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 915
 916         /* Audio ES, in the order they appear in the .ifo */
 917         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 918         {
 919             int i_position = 0;
 920             uint16_t i_id;
 921
 922             //IfoPrintAudio( p_demux, i );
 923
 924             /* Audio channel is active if first byte is 0x80 */
 925             if( audio_control & 0x8000 )
 926             {
 927                 i_position = ( audio_control & 0x7F00 ) >> 8;
 928
 929                 msg_Dbg( p_demux, "audio position  %d", i_position );
 930                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 931                 {
 932                 case 0x00: /* A52 */
 933                     i_id = (0x80 + i_position) | 0xbd00;
 934                     break;
 935                 case 0x02:
 936                 case 0x03: /* MPEG audio */
 937                     i_id = 0xc000 + i_position;
 938                     break;
 939                 case 0x04: /* LPCM */
 940                     i_id = (0xa0 + i_position) | 0xbd00;
 941                     break;
 942                 case 0x06: /* DTS */
 943                     i_id = (0x88 + i_position) | 0xbd00;
 944                     break;
 945                 default:
 946                     i_id = 0;
 947                     msg_Err( p_demux, "unknown audio type %.2x",
 948                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 949                 }
 950
 951                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 952                        vts_audio_attr[i - 1].lang_code );
 953             }
 954         }
 955 #undef audio_control
 956
 957 #define spu_palette \
 958     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 959
 960         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 961
 962 #define spu_control \
 963     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 964
 965         /* Sub Picture ES */
 966         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 967         {
 968             int i_position = 0;
 969             uint16_t i_id;
 970
 971             //IfoPrintSpu( p_sys, i );
 972             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 973
 974             if( spu_control & 0x80000000 )
 975             {
 976                 /*  there are several streams for one spu */
 977                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 978                 {
 979                     /* 16:9 */
 980                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 981                     {
 982                     case 1: /* letterbox */
 983                         i_position = spu_control & 0xff;
 984                         break;
 985                     case 2: /* pan&scan */
 986                         i_position = ( spu_control >> 8 ) & 0xff;
 987                         break;
 988                     default: /* widescreen */
 989                         i_position = ( spu_control >> 16 ) & 0xff;
 990                         break;
 991                     }
 992                 }
 993                 else
 994                 {
 995                     /* 4:3 */
 996                     i_position = ( spu_control >> 24 ) & 0x7F;
 997                 }
 998
 999                 i_id = (0x20 + i_position) | 0xbd00;
1000
1001                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
1002                        vts_subp_attr[i - 1].lang_code );
1003             }
1004         }
1005 #undef spu_control
1006
1007     }
1008     else if( i_title != -1 && i_title != p_sys->i_title )
1009
1010     {
1011         return VLC_EGENERIC; /* Couldn't set title */
1012     }
1013
1014     /*
1015      * Chapter selection
1016      */
1017
1018     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1019     {
1020         pgc_id = p_vts->vts_ptt_srpt->title[
1021                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1022         pgn = p_vts->vts_ptt_srpt->title[
1023                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1024
1025         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1026
1027         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1028         p_sys->i_chapter = i_chapter;
1029         DvdReadFindCell( p_demux );
1030
1031         p_sys->i_title_offset = 0;
1032         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1033         {
1034             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1035                 p_pgc->cell_playback[i].first_sector + 1;
1036         }
1037
1038         p_sys->i_pack_len = 0;
1039         p_sys->i_next_vobu = p_sys->i_cur_block =
1040             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1041
1042         if( p_demux->info.i_seekpoint != i_chapter )
1043         {
1044             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1045             p_demux->info.i_seekpoint = i_chapter;
1046         }
1047     }
1048     else if( i_chapter != -1 )
1049
1050     {
1051         return VLC_EGENERIC; /* Couldn't set chapter */
1052     }
1053
1054 #undef p_pgc
1055 #undef p_vts
1056 #undef p_vmg
1057
1058     return VLC_SUCCESS;
1059 }
1060
1061 /*****************************************************************************
1062  * DvdReadSeek : Goes to a given position on the stream.
1063  *****************************************************************************
1064  * This one is used by the input and translate chronological position from
1065  * input to logical position on the device.
1066  *****************************************************************************/
1067 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1068 {
1069     demux_sys_t *p_sys = p_demux->p_sys;
1070     int i_chapter = 0;
1071     int i_cell = 0;
1072     int i_vobu = 0;
1073     int i_sub_cell = 0;
1074     int i_block;
1075
1076 #define p_pgc p_sys->p_cur_pgc
1077 #define p_vts p_sys->p_vts_file
1078
1079     /* Find cell */
1080     i_block = i_block_offset;
1081     for( i_cell = p_sys->i_title_start_cell;
1082          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1083     {
1084         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1085             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1086
1087         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1088             p_pgc->cell_playback[i_cell].first_sector + 1);
1089     }
1090     if( i_cell > p_sys->i_title_end_cell )
1091     {
1092         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1093         return;
1094     }
1095     i_block += p_pgc->cell_playback[i_cell].first_sector;
1096     p_sys->i_title_offset = i_block_offset;
1097
1098     /* Find chapter */
1099     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1100     {
1101         int pgc_id, pgn, i_tmp;
1102
1103         pgc_id = p_vts->vts_ptt_srpt->title[
1104                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1105         pgn = p_vts->vts_ptt_srpt->title[
1106                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1107
1108         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1109
1110         if( i_tmp > i_cell ) break;
1111     }
1112
1113     if( i_chapter < p_sys->i_chapters &&
1114         p_demux->info.i_seekpoint != i_chapter )
1115     {
1116         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1117         p_demux->info.i_seekpoint = i_chapter;
1118     }
1119
1120     /* Find vobu */
1121     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1122     {
1123         i_vobu++;
1124     }
1125
1126     /* Find sub_cell */
1127     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1128            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1129     {
1130         i_sub_cell++;
1131     }
1132
1133 #if 1
1134     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1135              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1136              i_cell, i_sub_cell, i_chapter, i_vobu,
1137              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1138              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1139              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1140 #endif
1141
1142     p_sys->i_cur_block = i_block;
1143     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1144     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1145     p_sys->i_cur_cell = i_cell;
1146     p_sys->i_chapter = i_chapter;
1147     DvdReadFindCell( p_demux );
1148
1149 #undef p_vts
1150 #undef p_pgc
1151
1152     return;
1153 }
1154
1155 /*****************************************************************************
1156  * DvdReadHandleDSI
1157  *****************************************************************************/
1158 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1159 {
1160     demux_sys_t *p_sys = p_demux->p_sys;
1161
1162     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1163
1164     /*
1165      * Determine where we go next.  These values are the ones we mostly
1166      * care about.
1167      */
1168     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1169     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1170
1171     /*
1172      * Store the timecodes so we can get the current time
1173      */
1174     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1175     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1176
1177     /*
1178      * If we're not at the end of this cell, we can determine the next
1179      * VOBU to display using the VOBU_SRI information section of the
1180      * DSI.  Using this value correctly follows the current angle,
1181      * avoiding the doubled scenes in The Matrix, and makes our life
1182      * really happy.
1183      */
1184
1185     p_sys->i_next_vobu = p_sys->i_cur_block +
1186         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1187
1188     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1189         && p_sys->i_angle > 1 )
1190     {
1191         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1192         {
1193         case 0x4:
1194             /* Interleaved unit with no angle */
1195             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1196             {
1197                 p_sys->i_next_vobu = p_sys->i_cur_block +
1198                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1199                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1200             }
1201             else
1202             {
1203                 p_sys->i_next_vobu = p_sys->i_cur_block +
1204                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1205             }
1206             break;
1207         case 0x5:
1208             /* vobu is end of ilvu */
1209             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1210             {
1211                 p_sys->i_next_vobu = p_sys->i_cur_block +
1212                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1213                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1214
1215                 break;
1216             }
1217         case 0x6:
1218             /* vobu is beginning of ilvu */
1219         case 0x9:
1220             /* next scr is 0 */
1221         case 0xa:
1222             /* entering interleaved section */
1223         case 0x8:
1224             /* non interleaved cells in interleaved section */
1225         default:
1226             p_sys->i_next_vobu = p_sys->i_cur_block +
1227                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1228             break;
1229         }
1230     }
1231     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1232     {
1233         p_sys->i_cur_cell = p_sys->i_next_cell;
1234
1235         /* End of title */
1236         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1237
1238         DvdReadFindCell( p_demux );
1239
1240         p_sys->i_next_vobu =
1241             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1242
1243         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 );
1244     }
1245
1246
1247 #if 0
1248     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1249              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1250              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1251              p_sys->dsi_pack.dsi_gi.vobu_ea,
1252              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1253              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1254              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1255
1256     msg_Dbg( p_demux, "cell duration: %lld",
1257              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1258
1259     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1260              p_sys->dsi_pack.sml_pbi.category,
1261              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1262              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1263              p_sys->dsi_pack.sml_pbi.size );
1264
1265     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1266              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1267              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1268              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1269 #endif
1270 }
1271
1272 /*****************************************************************************
1273  * DvdReadFindCell
1274  *****************************************************************************/
1275 static void DvdReadFindCell( demux_t *p_demux )
1276 {
1277     demux_sys_t *p_sys = p_demux->p_sys;
1278
1279     pgc_t *p_pgc;
1280     int   pgc_id, pgn;
1281     int   i = 0;
1282
1283 #define cell p_sys->p_cur_pgc->cell_playback
1284
1285     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1286     {
1287         p_sys->i_cur_cell += p_sys->i_angle - 1;
1288
1289         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1290         {
1291             i++;
1292         }
1293         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1294     }
1295     else
1296     {
1297         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1298     }
1299
1300 #undef cell
1301
1302     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1303
1304     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1305                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1306     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1307               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1308     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1309
1310     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1311     {
1312         p_sys->i_chapter++;
1313
1314         if( p_sys->i_chapter < p_sys->i_chapters &&
1315             p_demux->info.i_seekpoint != p_sys->i_chapter )
1316         {
1317             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1318             p_demux->info.i_seekpoint = p_sys->i_chapter;
1319         }
1320     }
1321 }
1322
1323 /*****************************************************************************
1324  * DemuxTitles: get the titles/chapters structure
1325  *****************************************************************************/
1326 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1327 {
1328     VLC_UNUSED( pi_angle );
1329
1330     demux_sys_t *p_sys = p_demux->p_sys;
1331     input_title_t *t;
1332     seekpoint_t *s;
1333
1334     /* Find out number of titles/chapters */
1335 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1336
1337     int32_t i_titles = tt_srpt->nr_of_srpts;
1338     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1339
1340     for( int i = 0; i < i_titles; i++ )
1341     {
1342         int32_t i_chapters = 0;
1343         int j;
1344
1345         i_chapters = tt_srpt->title[i].nr_of_ptts;
1346         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1347
1348         t = vlc_input_title_New();
1349
1350         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1351         {
1352             s = vlc_seekpoint_New();
1353             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1354         }
1355
1356         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1357     }
1358
1359 #undef tt_srpt
1360 }