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 <sys/types.h>
  50
  51 #ifdef HAVE_DVDREAD_DVD_READER_H
  52   #include <dvdread/dvd_reader.h>
  53   #include <dvdread/ifo_types.h>
  54   #include <dvdread/ifo_read.h>
  55   #include <dvdread/nav_read.h>
  56   #include <dvdread/nav_print.h>
  57 #else
  58   #include <libdvdread/dvd_reader.h>
  59   #include <libdvdread/ifo_types.h>
  60   #include <libdvdread/ifo_read.h>
  61   #include <libdvdread/nav_read.h>
  62   #include <libdvdread/nav_print.h>
  63 #endif
  64
  65 #include <assert.h>
  66
  67 /*****************************************************************************
  68  * Module descriptor
  69  *****************************************************************************/
  70 #define ANGLE_TEXT N_("DVD angle")
  71 #define ANGLE_LONGTEXT N_( \
  72     "Default DVD angle." )
  73
  74 #define CACHING_TEXT N_("Caching value in ms")
  75 #define CACHING_LONGTEXT N_( \
  76     "Caching value for DVDs. " \
  77     "This value should be set in milliseconds." )
  78
  79 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  80 #define CSSMETHOD_LONGTEXT N_( \
  81     "Set the method used by libdvdcss for key decryption.\n" \
  82     "title: decrypted title key is guessed from the encrypted sectors of " \
  83            "the stream. Thus it should work with a file as well as the " \
  84            "DVD device. But it sometimes takes much time to decrypt a title " \
  85            "key and may even fail. With this method, the key is only checked "\
  86            "at the beginning of each title, so it won't work if the key " \
  87            "changes in the middle of a title.\n" \
  88     "disc: the disc key is first cracked, then all title keys can be " \
  89            "decrypted instantly, which allows us to check them often.\n" \
  90     "key: the same as \"disc\" if you don't have a file with player keys " \
  91            "at compilation time. If you do, the decryption of the disc key " \
  92            "will be faster with this method. It is the one that was used by " \
  93            "libcss.\n" \
  94     "The default method is: key.")
  95
  96 static const char *const psz_css_list[] = { "title", "disc", "key" };
  97 static const char *const psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
  98
  99 static int  Open ( vlc_object_t * );
 100 static void Close( vlc_object_t * );
 101
 102 vlc_module_begin ()
 103     set_shortname( N_("DVD without menus") )
 104     set_description( N_("DVDRead Input (no menu support)") )
 105     set_category( CAT_INPUT )
 106     set_subcategory( SUBCAT_INPUT_ACCESS )
 107     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
 108         ANGLE_LONGTEXT, false )
 109     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
 110         CACHING_TEXT, CACHING_LONGTEXT, true )
 111     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
 112                 CSSMETHOD_LONGTEXT, true )
 113         change_string_list( psz_css_list, psz_css_list_text, 0 )
 114     set_capability( "access_demux", 0 )
 115     add_shortcut( "dvd" )
 116     add_shortcut( "dvdread" )
 117     add_shortcut( "dvdsimple" )
 118     set_callbacks( Open, Close )
 119 vlc_module_end ()
 120
 121 /* how many blocks DVDRead will read in each loop */
 122 #define DVD_BLOCK_READ_ONCE 4
 123
 124 /*****************************************************************************
 125  * Local prototypes
 126  *****************************************************************************/
 127
 128 struct demux_sys_t
 129 {
 130     /* DVDRead state */
 131     dvd_reader_t *p_dvdread;
 132     dvd_file_t   *p_title;
 133
 134     ifo_handle_t *p_vmg_file;
 135     ifo_handle_t *p_vts_file;
 136
 137     int i_title;
 138     int i_chapter, i_chapters;
 139     int i_angle, i_angles;
 140
 141     tt_srpt_t    *p_tt_srpt;
 142     pgc_t        *p_cur_pgc;
 143     dsi_t        dsi_pack;
 144     int          i_ttn;
 145
 146     int i_pack_len;
 147     int i_cur_block;
 148     int i_next_vobu;
 149
 150     int i_mux_rate;
 151
 152     /* Current title start/end blocks */
 153     int i_title_start_block;
 154     int i_title_end_block;
 155     int i_title_blocks;
 156     int i_title_offset;
 157     mtime_t i_title_cur_time;
 158
 159     int i_title_start_cell;
 160     int i_title_end_cell;
 161     int i_cur_cell;
 162     int i_next_cell;
 163     mtime_t i_cell_cur_time;
 164     mtime_t i_cell_duration;
 165
 166     /* Track */
 167     ps_track_t    tk[PS_TK_COUNT];
 168
 169     int           i_titles;
 170     input_title_t **titles;
 171
 172     /* Video */
 173     int i_sar_num;
 174     int i_sar_den;
 175
 176     /* SPU */
 177     uint32_t clut[16];
 178 };
 179
 180 static int Control   ( demux_t *, int, va_list );
 181 static int Demux     ( demux_t * );
 182 static int DemuxBlock( demux_t *, uint8_t *, int );
 183
 184 static void DemuxTitles( demux_t *, int * );
 185 static void ESNew( demux_t *, int, int );
 186
 187 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 188 static void DvdReadSeek     ( demux_t *, int );
 189 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 190 static void DvdReadFindCell ( demux_t * );
 191
 192 /*****************************************************************************
 193  * Open:
 194  *****************************************************************************/
 195 static int Open( vlc_object_t *p_this )
 196 {
 197     demux_t      *p_demux = (demux_t*)p_this;
 198     demux_sys_t  *p_sys;
 199     char         *psz_name;
 200     char         *psz_dvdcss_env;
 201     dvd_reader_t *p_dvdread;
 202     ifo_handle_t *p_vmg_file;
 203
 204     if( !p_demux->psz_path || !*p_demux->psz_path )
 205     {
 206         /* Only when selected */
 207         if( !p_this->b_force ) return VLC_EGENERIC;
 208
 209         psz_name = var_CreateGetString( p_this, "dvd" );
 210         if( !psz_name )
 211         {
 212             psz_name = strdup("");
 213         }
 214     }
 215     else
 216         psz_name = ToLocaleDup( p_demux->psz_path );
 217
 218 #ifdef WIN32
 219     if( psz_name[0] && psz_name[1] == ':' &&
 220         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 221 #endif
 222
 223     /* Override environment variable DVDCSS_METHOD with config option */
 224     psz_dvdcss_env = var_InheritString( p_demux, "dvdread-css-method" );
 225     if( psz_dvdcss_env )
 226 #ifdef HAVE_SETENV
 227         setenv( "DVDCSS_METHOD", psz_dvdcss_env, 1 );
 228 #else
 229     {
 230         /* FIXME: this create a small memory leak */
 231         char *psz_env;
 232         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 233                           strlen( psz_dvdcss_env ) + 1 );
 234         if( !psz_env )
 235         {
 236             free( psz_dvdcss_env );
 237             return VLC_ENOMEM;
 238         }
 239         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 240         putenv( psz_env );
 241     }
 242 #endif
 243     free( psz_dvdcss_env );
 244
 245     /* Open dvdread */
 246     if( !(p_dvdread = DVDOpen( psz_name )) )
 247     {
 248         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 249         dialog_Fatal( p_demux, _("Playback failure"),
 250                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 251         free( psz_name );
 252         return VLC_EGENERIC;
 253     }
 254     free( psz_name );
 255
 256     /* Ifo allocation & initialisation */
 257     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 258     {
 259         msg_Warn( p_demux, "cannot open VMG info" );
 260         return VLC_EGENERIC;
 261     }
 262     msg_Dbg( p_demux, "VMG opened" );
 263
 264     /* Fill p_demux field */
 265     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 266
 267     ps_track_init( p_sys->tk );
 268     p_sys->i_sar_num = 0;
 269     p_sys->i_sar_den = 0;
 270     p_sys->i_title_cur_time = (mtime_t) 0;
 271     p_sys->i_cell_cur_time = (mtime_t) 0;
 272     p_sys->i_cell_duration = (mtime_t) 0;
 273
 274     p_sys->p_dvdread = p_dvdread;
 275     p_sys->p_vmg_file = p_vmg_file;
 276     p_sys->p_title = NULL;
 277     p_sys->p_vts_file = NULL;
 278
 279     p_sys->i_title = p_sys->i_chapter = -1;
 280     p_sys->i_mux_rate = 0;
 281
 282     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 283     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 284
 285     DemuxTitles( p_demux, &p_sys->i_angle );
 286     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 287     {
 288         Close( p_this );
 289         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 290                  p_sys->i_angle );
 291         return VLC_EGENERIC;
 292     }
 293
 294     /* Update default_pts to a suitable value for dvdread access */
 295     var_Create( p_demux, "dvdread-caching",
 296                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 297
 298     return VLC_SUCCESS;
 299 }
 300
 301 /*****************************************************************************
 302  * Close:
 303  *****************************************************************************/
 304 static void Close( vlc_object_t *p_this )
 305 {
 306     demux_t     *p_demux = (demux_t*)p_this;
 307     demux_sys_t *p_sys = p_demux->p_sys;
 308     int i;
 309
 310     for( i = 0; i < PS_TK_COUNT; i++ )
 311     {
 312         ps_track_t *tk = &p_sys->tk[i];
 313         if( tk->b_seen )
 314         {
 315             es_format_Clean( &tk->fmt );
 316             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 317         }
 318     }
 319
 320     /* Close libdvdread */
 321     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 322     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 323     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 324     DVDClose( p_sys->p_dvdread );
 325
 326     free( p_sys );
 327 }
 328
 329 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 330 {
 331 /* Macro to convert Binary Coded Decimal to Decimal */
 332 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 333
 334     double f_fps, f_ms;
 335     int64_t i_micro_second = 0;
 336
 337     if (still_time == 0 || still_time == 0xFF)
 338     {
 339         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 340         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 341         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 342
 343         switch((dtime->frame_u & 0xc0) >> 6)
 344         {
 345         case 1:
 346             f_fps = 25.0;
 347             break;
 348         case 3:
 349             f_fps = 29.97;
 350             break;
 351         default:
 352             f_fps = 2500.0;
 353             break;
 354         }
 355         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 356         i_micro_second += (int64_t)(f_ms * 1000.0);
 357     }
 358     else
 359     {
 360         i_micro_second = still_time;
 361         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 362     }
 363
 364     return i_micro_second;
 365 }
 366
 367 /*****************************************************************************
 368  * Control:
 369  *****************************************************************************/
 370 static int Control( demux_t *p_demux, int i_query, va_list args )
 371 {
 372     demux_sys_t *p_sys = p_demux->p_sys;
 373     double f, *pf;
 374     bool *pb;
 375     int64_t *pi64;
 376     input_title_t ***ppp_title;
 377     int *pi_int;
 378     int i;
 379
 380     switch( i_query )
 381     {
 382         case DEMUX_GET_POSITION:
 383         {
 384             pf = (double*) va_arg( args, double* );
 385
 386             if( p_sys->i_title_blocks > 0 )
 387                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 388             else
 389                 *pf = 0.0;
 390
 391             return VLC_SUCCESS;
 392         }
 393         case DEMUX_SET_POSITION:
 394         {
 395             f = (double)va_arg( args, double );
 396
 397             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 398
 399             return VLC_SUCCESS;
 400         }
 401         case DEMUX_GET_TIME:
 402             pi64 = (int64_t*)va_arg( args, int64_t * );
 403             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 404             {
 405                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 406                         p_sys->i_title_blocks * p_sys->i_title_offset;
 407                 return VLC_SUCCESS;
 408             }
 409             *pi64 = 0;
 410             return VLC_EGENERIC;
 411
 412         case DEMUX_GET_LENGTH:
 413             pi64 = (int64_t*)va_arg( args, int64_t * );
 414             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 415             {
 416                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 417                 return VLC_SUCCESS;
 418             }
 419             *pi64 = 0;
 420             return VLC_EGENERIC;
 421
 422         /* Special for access_demux */
 423         case DEMUX_CAN_PAUSE:
 424         case DEMUX_CAN_SEEK:
 425         case DEMUX_CAN_CONTROL_PACE:
 426             /* TODO */
 427             pb = (bool*)va_arg( args, bool * );
 428             *pb = true;
 429             return VLC_SUCCESS;
 430
 431         case DEMUX_SET_PAUSE_STATE:
 432             return VLC_SUCCESS;
 433
 434         case DEMUX_GET_TITLE_INFO:
 435             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 436             pi_int    = (int*)va_arg( args, int* );
 437             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 438             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 439
 440             /* Duplicate title infos */
 441             *pi_int = p_sys->i_titles;
 442             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 443             for( i = 0; i < p_sys->i_titles; i++ )
 444             {
 445                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 446             }
 447             return VLC_SUCCESS;
 448
 449         case DEMUX_SET_TITLE:
 450             i = (int)va_arg( args, int );
 451             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 452             {
 453                 msg_Warn( p_demux, "cannot set title/chapter" );
 454                 return VLC_EGENERIC;
 455             }
 456             p_demux->info.i_update |=
 457                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 458             p_demux->info.i_title = i;
 459             p_demux->info.i_seekpoint = 0;
 460             return VLC_SUCCESS;
 461
 462         case DEMUX_SET_SEEKPOINT:
 463             i = (int)va_arg( args, int );
 464             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 465             {
 466                 msg_Warn( p_demux, "cannot set title/chapter" );
 467                 return VLC_EGENERIC;
 468             }
 469             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 470             p_demux->info.i_seekpoint = i;
 471             return VLC_SUCCESS;
 472
 473         case DEMUX_GET_PTS_DELAY:
 474             pi64 = (int64_t*)va_arg( args, int64_t * );
 475             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 476             return VLC_SUCCESS;
 477
 478         /* TODO implement others */
 479         default:
 480             return VLC_EGENERIC;
 481     }
 482 }
 483
 484 /*****************************************************************************
 485  * Demux:
 486  *****************************************************************************/
 487 static int Demux( demux_t *p_demux )
 488 {
 489     demux_sys_t *p_sys = p_demux->p_sys;
 490
 491     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 492     int i_blocks_once, i_read;
 493     int i;
 494
 495     /*
 496      * Playback by cell in this pgc, starting at the cell for our chapter.
 497      */
 498
 499     /*
 500      * Check end of pack, and select the following one
 501      */
 502     if( !p_sys->i_pack_len )
 503     {
 504         /* Read NAV packet */
 505         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 506                            1, p_buffer ) != 1 )
 507         {
 508             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 509             dialog_Fatal( p_demux, _("Playback failure"),
 510                           _("DVDRead could not read block %d."),
 511                           p_sys->i_next_vobu );
 512             return -1;
 513         }
 514
 515         /* Basic check to be sure we don't have a empty title
 516          * go to next title if so */
 517         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 518
 519         /* Parse the contained dsi packet */
 520         DvdReadHandleDSI( p_demux, p_buffer );
 521
 522         /* End of title */
 523         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 524         {
 525             if( p_sys->i_title + 1 >= p_sys->i_titles )
 526             {
 527                 return 0; /* EOF */
 528             }
 529
 530             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 531         }
 532
 533         if( p_sys->i_pack_len >= 1024 )
 534         {
 535             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 536                      "This shouldn't happen!", p_sys->i_pack_len );
 537             return 0; /* EOF */
 538         }
 539
 540         /* FIXME: Ugly kludge: we send the pack block to the input for it
 541          * sometimes has a zero scr and restart the sync */
 542         p_sys->i_cur_block++;
 543         p_sys->i_title_offset++;
 544
 545         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 546     }
 547
 548     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 549     {
 550         if( p_sys->i_title + 1 >= p_sys->i_titles )
 551         {
 552             return 0; /* EOF */
 553         }
 554
 555         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 556     }
 557
 558     /*
 559      * Read actual data
 560      */
 561     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 562     p_sys->i_pack_len -= i_blocks_once;
 563
 564     /* Reads from DVD */
 565     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 566                             i_blocks_once, p_buffer );
 567     if( i_read != i_blocks_once )
 568     {
 569         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 570                  i_read, i_blocks_once, p_sys->i_cur_block );
 571         dialog_Fatal( p_demux, _("Playback failure"),
 572                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 573                         i_read, i_blocks_once, p_sys->i_cur_block );
 574         return -1;
 575     }
 576
 577     p_sys->i_cur_block += i_read;
 578     p_sys->i_title_offset += i_read;
 579
 580 #if 0
 581     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 582              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 583 #endif
 584
 585     for( i = 0; i < i_read; i++ )
 586     {
 587         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 588                     DVD_VIDEO_LB_LEN );
 589     }
 590
 591 #undef p_pgc
 592
 593     return 1;
 594 }
 595
 596 /*****************************************************************************
 597  * DemuxBlock: demux a given block
 598  *****************************************************************************/
 599 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 600 {
 601     demux_sys_t *p_sys = p_demux->p_sys;
 602     uint8_t     *p = pkt;
 603
 604     while( p && p < &pkt[i_pkt] )
 605     {
 606         block_t *p_pkt;
 607         int i_size = &pkt[i_pkt] - p;
 608
 609         if( i_size < 6 )
 610             break;
 611
 612         i_size = ps_pkt_size( p, i_size );
 613         if( i_size <= 0 )
 614         {
 615             break;
 616         }
 617
 618         /* Create a block */
 619         p_pkt = block_New( p_demux, i_size );
 620         memcpy( p_pkt->p_buffer, p, i_size);
 621
 622         /* Parse it and send it */
 623         switch( 0x100 | p[3] )
 624         {
 625         case 0x1b9:
 626         case 0x1bb:
 627         case 0x1bc:
 628
 629 #ifdef DVDREAD_DEBUG
 630             if( p[3] == 0xbc )
 631             {
 632                 msg_Warn( p_demux, "received a PSM packet" );
 633             }
 634             else if( p[3] == 0xbb )
 635             {
 636                 msg_Warn( p_demux, "received a SYSTEM packet" );
 637             }
 638 #endif
 639             block_Release( p_pkt );
 640             break;
 641
 642         case 0x1ba:
 643         {
 644             int64_t i_scr;
 645             int i_mux_rate;
 646             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 647             {
 648                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 649                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 650             }
 651             block_Release( p_pkt );
 652             break;
 653         }
 654         default:
 655         {
 656             int i_id = ps_pkt_id( p_pkt );
 657             if( i_id >= 0xc0 )
 658             {
 659                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 660
 661                 if( !tk->b_seen )
 662                 {
 663                     ESNew( p_demux, i_id, 0 );
 664                 }
 665                 if( tk->b_seen && tk->es &&
 666                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 667                 {
 668                     es_out_Send( p_demux->out, tk->es, p_pkt );
 669                 }
 670                 else
 671                 {
 672                     block_Release( p_pkt );
 673                 }
 674             }
 675             else
 676             {
 677                 block_Release( p_pkt );
 678             }
 679             break;
 680         }
 681         }
 682
 683         p += i_size;
 684     }
 685
 686     return VLC_SUCCESS;
 687 }
 688
 689 /*****************************************************************************
 690  * ESNew: register a new elementary stream
 691  *****************************************************************************/
 692 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 693 {
 694     demux_sys_t *p_sys = p_demux->p_sys;
 695     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 696     char psz_language[3];
 697
 698     if( tk->b_seen ) return;
 699
 700     if( ps_track_fill( tk, 0, i_id ) )
 701     {
 702         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 703         return;
 704     }
 705
 706     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 707     if( i_lang && i_lang != 0xffff )
 708     {
 709         psz_language[0] = (i_lang >> 8)&0xff;
 710         psz_language[1] = (i_lang     )&0xff;
 711     }
 712
 713     /* Add a new ES */
 714     if( tk->fmt.i_cat == VIDEO_ES )
 715     {
 716         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 717         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 718     }
 719     else if( tk->fmt.i_cat == AUDIO_ES )
 720     {
 721         int i_audio = -1;
 722         /* find the audio number PLEASE find another way */
 723         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 724         {
 725             i_audio = i_id&0x07;
 726         }
 727         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 728         {
 729             i_audio = i_id&0xf;
 730         }
 731         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 732         {
 733             i_audio = i_id&0x1f;
 734         }
 735         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 736         {
 737             i_audio = i_id&0x1f;
 738         }
 739
 740         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 741     }
 742     else if( tk->fmt.i_cat == SPU_ES )
 743     {
 744         /* Palette */
 745         tk->fmt.subs.spu.palette[0] = 0xBeef;
 746         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 747                 16 * sizeof( uint32_t ) );
 748
 749         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 750     }
 751
 752     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 753     tk->b_seen = true;
 754 }
 755
 756 /*****************************************************************************
 757  * DvdReadSetArea: initialize input data for title x, chapter y.
 758  * It should be called for each user navigation request.
 759  *****************************************************************************
 760  * Take care that i_title and i_chapter start from 0.
 761  *****************************************************************************/
 762 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 763                            int i_angle )
 764 {
 765     VLC_UNUSED( i_angle );
 766
 767     demux_sys_t *p_sys = p_demux->p_sys;
 768     int pgc_id = 0, pgn = 0;
 769     int i;
 770
 771 #define p_pgc p_sys->p_cur_pgc
 772 #define p_vmg p_sys->p_vmg_file
 773 #define p_vts p_sys->p_vts_file
 774
 775     if( i_title >= 0 && i_title < p_sys->i_titles &&
 776         i_title != p_sys->i_title )
 777     {
 778         int i_start_cell, i_end_cell;
 779
 780         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 781         if( p_vts != NULL ) ifoClose( p_vts );
 782         p_sys->i_title = i_title;
 783
 784         /*
 785          *  We have to load all title information
 786          */
 787         msg_Dbg( p_demux, "open VTS %d, for title %d",
 788                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 789
 790         /* Ifo vts */
 791         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 792                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 793         {
 794             msg_Err( p_demux, "fatal error in vts ifo" );
 795             return VLC_EGENERIC;
 796         }
 797
 798         /* Title position inside the selected vts */
 799         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 800
 801         /* Find title start/end */
 802         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 803         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 804         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 805
 806         p_sys->i_title_start_cell =
 807             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 808         p_sys->i_title_start_block =
 809             p_pgc->cell_playback[i_start_cell].first_sector;
 810
 811         p_sys->i_title_end_cell =
 812             i_end_cell = p_pgc->nr_of_cells - 1;
 813         p_sys->i_title_end_block =
 814             p_pgc->cell_playback[i_end_cell].last_sector;
 815
 816         p_sys->i_title_offset = 0;
 817
 818         p_sys->i_title_blocks = 0;
 819         for( i = i_start_cell; i <= i_end_cell; i++ )
 820         {
 821             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 822                 p_pgc->cell_playback[i].first_sector + 1;
 823         }
 824
 825         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 826                  "start %d end %d blocks: %d",
 827                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 828                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 829                  p_sys->i_title_blocks );
 830
 831         /*
 832          * Set properties for current chapter
 833          */
 834         p_sys->i_chapter = 0;
 835         p_sys->i_chapters =
 836             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 837
 838         pgc_id = p_vts->vts_ptt_srpt->title[
 839                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 840         pgn = p_vts->vts_ptt_srpt->title[
 841                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 842
 843         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 844         p_sys->i_pack_len = 0;
 845         p_sys->i_next_cell =
 846             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 847         DvdReadFindCell( p_demux );
 848
 849         p_sys->i_next_vobu = p_sys->i_cur_block =
 850             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 851
 852         /*
 853          * Angle management
 854          */
 855         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 856         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 857
 858         /*
 859          * We've got enough info, time to open the title set data.
 860          */
 861         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 862             p_vmg->tt_srpt->title[i_title].title_set_nr,
 863             DVD_READ_TITLE_VOBS ) ) )
 864         {
 865             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 866                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 867             return VLC_EGENERIC;
 868         }
 869
 870         //IfoPrintTitle( p_demux );
 871
 872         /*
 873          * Destroy obsolete ES by reinitializing program 0
 874          * and find all ES in title with ifo data
 875          */
 876         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 877
 878         for( i = 0; i < PS_TK_COUNT; i++ )
 879         {
 880             ps_track_t *tk = &p_sys->tk[i];
 881             if( tk->b_seen )
 882             {
 883                 es_format_Clean( &tk->fmt );
 884                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 885             }
 886             tk->b_seen = false;
 887         }
 888
 889         if( p_demux->info.i_title != i_title )
 890         {
 891             p_demux->info.i_update |=
 892                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 893             p_demux->info.i_title = i_title;
 894             p_demux->info.i_seekpoint = 0;
 895         }
 896
 897         /* TODO: re-add angles */
 898
 899
 900         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 901         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 902         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 903         int i_video_width;
 904         switch( p_attr->picture_size )
 905         {
 906         case 0:
 907             i_video_width = 720;
 908             break;
 909         case 1:
 910             i_video_width = 704;
 911             break;
 912         case 2:
 913             i_video_width = 352;
 914             break;
 915         default:
 916         case 3:
 917             i_video_width = 352;
 918             i_video_height /= 2;
 919             break;
 920         }
 921         switch( p_attr->display_aspect_ratio )
 922         {
 923         case 0:
 924             p_sys->i_sar_num = 4 * i_video_height;
 925             p_sys->i_sar_den = 3 * i_video_width;
 926             break;
 927         case 3:
 928             p_sys->i_sar_num = 16 * i_video_height;
 929             p_sys->i_sar_den =  9 * i_video_width;
 930             break;
 931         default:
 932             p_sys->i_sar_num = 0;
 933             p_sys->i_sar_den = 0;
 934             break;
 935         }
 936
 937 #define audio_control \
 938     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 939
 940         /* Audio ES, in the order they appear in the .ifo */
 941         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 942         {
 943             int i_position = 0;
 944             uint16_t i_id;
 945
 946             //IfoPrintAudio( p_demux, i );
 947
 948             /* Audio channel is active if first byte is 0x80 */
 949             if( audio_control & 0x8000 )
 950             {
 951                 i_position = ( audio_control & 0x7F00 ) >> 8;
 952
 953                 msg_Dbg( p_demux, "audio position  %d", i_position );
 954                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 955                 {
 956                 case 0x00: /* A52 */
 957                     i_id = (0x80 + i_position) | 0xbd00;
 958                     break;
 959                 case 0x02:
 960                 case 0x03: /* MPEG audio */
 961                     i_id = 0xc000 + i_position;
 962                     break;
 963                 case 0x04: /* LPCM */
 964                     i_id = (0xa0 + i_position) | 0xbd00;
 965                     break;
 966                 case 0x06: /* DTS */
 967                     i_id = (0x88 + i_position) | 0xbd00;
 968                     break;
 969                 default:
 970                     i_id = 0;
 971                     msg_Err( p_demux, "unknown audio type %.2x",
 972                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 973                 }
 974
 975                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 976                        vts_audio_attr[i - 1].lang_code );
 977             }
 978         }
 979 #undef audio_control
 980
 981 #define spu_palette \
 982     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 983
 984         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 985
 986 #define spu_control \
 987     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 988
 989         /* Sub Picture ES */
 990         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 991         {
 992             int i_position = 0;
 993             uint16_t i_id;
 994
 995             //IfoPrintSpu( p_sys, i );
 996             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 997
 998             if( spu_control & 0x80000000 )
 999             {
1000                 /*  there are several streams for one spu */
1001                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
1002                 {
1003                     /* 16:9 */
1004                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
1005                     {
1006                     case 1: /* letterbox */
1007                         i_position = spu_control & 0xff;
1008                         break;
1009                     case 2: /* pan&scan */
1010                         i_position = ( spu_control >> 8 ) & 0xff;
1011                         break;
1012                     default: /* widescreen */
1013                         i_position = ( spu_control >> 16 ) & 0xff;
1014                         break;
1015                     }
1016                 }
1017                 else
1018                 {
1019                     /* 4:3 */
1020                     i_position = ( spu_control >> 24 ) & 0x7F;
1021                 }
1022
1023                 i_id = (0x20 + i_position) | 0xbd00;
1024
1025                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
1026                        vts_subp_attr[i - 1].lang_code );
1027             }
1028         }
1029 #undef spu_control
1030
1031     }
1032     else if( i_title != -1 && i_title != p_sys->i_title )
1033
1034     {
1035         return VLC_EGENERIC; /* Couldn't set title */
1036     }
1037
1038     /*
1039      * Chapter selection
1040      */
1041
1042     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1043     {
1044         pgc_id = p_vts->vts_ptt_srpt->title[
1045                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1046         pgn = p_vts->vts_ptt_srpt->title[
1047                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1048
1049         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1050
1051         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1052         p_sys->i_chapter = i_chapter;
1053         DvdReadFindCell( p_demux );
1054
1055         p_sys->i_title_offset = 0;
1056         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1057         {
1058             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1059                 p_pgc->cell_playback[i].first_sector + 1;
1060         }
1061
1062         p_sys->i_pack_len = 0;
1063         p_sys->i_next_vobu = p_sys->i_cur_block =
1064             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1065
1066         if( p_demux->info.i_seekpoint != i_chapter )
1067         {
1068             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1069             p_demux->info.i_seekpoint = i_chapter;
1070         }
1071     }
1072     else if( i_chapter != -1 )
1073
1074     {
1075         return VLC_EGENERIC; /* Couldn't set chapter */
1076     }
1077
1078 #undef p_pgc
1079 #undef p_vts
1080 #undef p_vmg
1081
1082     return VLC_SUCCESS;
1083 }
1084
1085 /*****************************************************************************
1086  * DvdReadSeek : Goes to a given position on the stream.
1087  *****************************************************************************
1088  * This one is used by the input and translate chronological position from
1089  * input to logical position on the device.
1090  *****************************************************************************/
1091 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1092 {
1093     demux_sys_t *p_sys = p_demux->p_sys;
1094     int i_chapter = 0;
1095     int i_cell = 0;
1096     int i_vobu = 0;
1097     int i_sub_cell = 0;
1098     int i_block;
1099
1100 #define p_pgc p_sys->p_cur_pgc
1101 #define p_vts p_sys->p_vts_file
1102
1103     /* Find cell */
1104     i_block = i_block_offset;
1105     for( i_cell = p_sys->i_title_start_cell;
1106          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1107     {
1108         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1109             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1110
1111         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1112             p_pgc->cell_playback[i_cell].first_sector + 1);
1113     }
1114     if( i_cell > p_sys->i_title_end_cell )
1115     {
1116         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1117         return;
1118     }
1119     i_block += p_pgc->cell_playback[i_cell].first_sector;
1120     p_sys->i_title_offset = i_block_offset;
1121
1122     /* Find chapter */
1123     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1124     {
1125         int pgc_id, pgn, i_tmp;
1126
1127         pgc_id = p_vts->vts_ptt_srpt->title[
1128                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1129         pgn = p_vts->vts_ptt_srpt->title[
1130                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1131
1132         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1133
1134         if( i_tmp > i_cell ) break;
1135     }
1136
1137     if( i_chapter < p_sys->i_chapters &&
1138         p_demux->info.i_seekpoint != i_chapter )
1139     {
1140         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1141         p_demux->info.i_seekpoint = i_chapter;
1142     }
1143
1144     /* Find vobu */
1145     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1146     {
1147         i_vobu++;
1148     }
1149
1150     /* Find sub_cell */
1151     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1152            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1153     {
1154         i_sub_cell++;
1155     }
1156
1157 #if 1
1158     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1159              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1160              i_cell, i_sub_cell, i_chapter, i_vobu,
1161              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1162              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1163              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1164 #endif
1165
1166     p_sys->i_cur_block = i_block;
1167     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1168     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1169     p_sys->i_cur_cell = i_cell;
1170     p_sys->i_chapter = i_chapter;
1171     DvdReadFindCell( p_demux );
1172
1173 #undef p_vts
1174 #undef p_pgc
1175
1176     return;
1177 }
1178
1179 /*****************************************************************************
1180  * DvdReadHandleDSI
1181  *****************************************************************************/
1182 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1183 {
1184     demux_sys_t *p_sys = p_demux->p_sys;
1185
1186     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1187
1188     /*
1189      * Determine where we go next.  These values are the ones we mostly
1190      * care about.
1191      */
1192     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1193     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1194
1195     /*
1196      * Store the timecodes so we can get the current time
1197      */
1198     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1199     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1200
1201     /*
1202      * If we're not at the end of this cell, we can determine the next
1203      * VOBU to display using the VOBU_SRI information section of the
1204      * DSI.  Using this value correctly follows the current angle,
1205      * avoiding the doubled scenes in The Matrix, and makes our life
1206      * really happy.
1207      */
1208
1209     p_sys->i_next_vobu = p_sys->i_cur_block +
1210         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1211
1212     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1213         && p_sys->i_angle > 1 )
1214     {
1215         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1216         {
1217         case 0x4:
1218             /* Interleaved unit with no angle */
1219             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1220             {
1221                 p_sys->i_next_vobu = p_sys->i_cur_block +
1222                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1223                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1224             }
1225             else
1226             {
1227                 p_sys->i_next_vobu = p_sys->i_cur_block +
1228                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1229             }
1230             break;
1231         case 0x5:
1232             /* vobu is end of ilvu */
1233             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1234             {
1235                 p_sys->i_next_vobu = p_sys->i_cur_block +
1236                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1237                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1238
1239                 break;
1240             }
1241         case 0x6:
1242             /* vobu is beginning of ilvu */
1243         case 0x9:
1244             /* next scr is 0 */
1245         case 0xa:
1246             /* entering interleaved section */
1247         case 0x8:
1248             /* non interleaved cells in interleaved section */
1249         default:
1250             p_sys->i_next_vobu = p_sys->i_cur_block +
1251                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1252             break;
1253         }
1254     }
1255     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1256     {
1257         p_sys->i_cur_cell = p_sys->i_next_cell;
1258
1259         /* End of title */
1260         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1261
1262         DvdReadFindCell( p_demux );
1263
1264         p_sys->i_next_vobu =
1265             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1266
1267         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 );
1268     }
1269
1270
1271 #if 0
1272     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1273              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1274              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1275              p_sys->dsi_pack.dsi_gi.vobu_ea,
1276              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1277              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1278              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1279
1280     msg_Dbg( p_demux, "cell duration: %lld",
1281              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1282
1283     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1284              p_sys->dsi_pack.sml_pbi.category,
1285              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1286              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1287              p_sys->dsi_pack.sml_pbi.size );
1288
1289     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1290              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1291              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1292              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1293 #endif
1294 }
1295
1296 /*****************************************************************************
1297  * DvdReadFindCell
1298  *****************************************************************************/
1299 static void DvdReadFindCell( demux_t *p_demux )
1300 {
1301     demux_sys_t *p_sys = p_demux->p_sys;
1302
1303     pgc_t *p_pgc;
1304     int   pgc_id, pgn;
1305     int   i = 0;
1306
1307 #define cell p_sys->p_cur_pgc->cell_playback
1308
1309     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1310     {
1311         p_sys->i_cur_cell += p_sys->i_angle - 1;
1312
1313         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1314         {
1315             i++;
1316         }
1317         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1318     }
1319     else
1320     {
1321         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1322     }
1323
1324 #undef cell
1325
1326     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1327
1328     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1329                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1330     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1331               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1332     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1333
1334     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1335     {
1336         p_sys->i_chapter++;
1337
1338         if( p_sys->i_chapter < p_sys->i_chapters &&
1339             p_demux->info.i_seekpoint != p_sys->i_chapter )
1340         {
1341             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1342             p_demux->info.i_seekpoint = p_sys->i_chapter;
1343         }
1344     }
1345 }
1346
1347 /*****************************************************************************
1348  * DemuxTitles: get the titles/chapters structure
1349  *****************************************************************************/
1350 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1351 {
1352     VLC_UNUSED( pi_angle );
1353
1354     demux_sys_t *p_sys = p_demux->p_sys;
1355     input_title_t *t;
1356     seekpoint_t *s;
1357
1358     /* Find out number of titles/chapters */
1359 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1360
1361     int32_t i_titles = tt_srpt->nr_of_srpts;
1362     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1363
1364     for( int i = 0; i < i_titles; i++ )
1365     {
1366         int32_t i_chapters = 0;
1367         int j;
1368
1369         i_chapters = tt_srpt->title[i].nr_of_ptts;
1370         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1371
1372         t = vlc_input_title_New();
1373
1374         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1375         {
1376             s = vlc_seekpoint_New();
1377             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1378         }
1379
1380         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1381     }
1382
1383 #undef tt_srpt
1384 }