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 VLC authors and VideoLAN
   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 it
  11  * under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * NOTA BENE: this module requires the linking against a library which is
  27  * known to require licensing under the GNU General Public License version 2
  28  * (or later). Therefore, the result of compiling this module will normally
  29  * be subject to the terms of that later license.
  30  *****************************************************************************/
  31
  32
  33 /*****************************************************************************
  34  * Preamble
  35  *****************************************************************************/
  36
  37 #ifdef HAVE_CONFIG_H
  38 # include "config.h"
  39 #endif
  40
  41 #include <vlc_common.h>
  42 #include <vlc_plugin.h>
  43 #include <vlc_input.h>
  44 #include <vlc_access.h>
  45 #include <vlc_charset.h>
  46 #include <vlc_interface.h>
  47 #include <vlc_dialog.h>
  48
  49 #include <vlc_iso_lang.h>
  50
  51 #include "../demux/ps.h"
  52
  53 #include <sys/types.h>
  54 #include <unistd.h>
  55
  56 #include <dvdread/dvd_reader.h>
  57 #include <dvdread/ifo_types.h>
  58 #include <dvdread/ifo_read.h>
  59 #include <dvdread/nav_read.h>
  60 #include <dvdread/nav_print.h>
  61
  62 #include <assert.h>
  63
  64 /*****************************************************************************
  65  * Module descriptor
  66  *****************************************************************************/
  67 #define ANGLE_TEXT N_("DVD angle")
  68 #define ANGLE_LONGTEXT N_( \
  69     "Default DVD angle." )
  70
  71 static int  Open ( vlc_object_t * );
  72 static void Close( vlc_object_t * );
  73
  74 vlc_module_begin ()
  75     set_shortname( N_("DVD without menus") )
  76     set_description( N_("DVDRead Input (no menu support)") )
  77     set_category( CAT_INPUT )
  78     set_subcategory( SUBCAT_INPUT_ACCESS )
  79     add_integer( "dvdread-angle", 1, ANGLE_TEXT,
  80         ANGLE_LONGTEXT, false )
  81     add_obsolete_string( "dvdread-css-method" ) /* obsolete since 1.1.0 */
  82     set_capability( "access_demux", 0 )
  83     add_shortcut( "dvd", "dvdread", "dvdsimple" )
  84     set_callbacks( Open, Close )
  85 vlc_module_end ()
  86
  87 /* how many blocks DVDRead will read in each loop */
  88 #define DVD_BLOCK_READ_ONCE 4
  89
  90 /*****************************************************************************
  91  * Local prototypes
  92  *****************************************************************************/
  93
  94 struct demux_sys_t
  95 {
  96     /* DVDRead state */
  97     dvd_reader_t *p_dvdread;
  98     dvd_file_t   *p_title;
  99
 100     ifo_handle_t *p_vmg_file;
 101     ifo_handle_t *p_vts_file;
 102
 103     int i_title;
 104     int i_chapter, i_chapters;
 105     int i_angle, i_angles;
 106
 107     tt_srpt_t    *p_tt_srpt;
 108     pgc_t        *p_cur_pgc;
 109     dsi_t        dsi_pack;
 110     int          i_ttn;
 111
 112     int i_pack_len;
 113     int i_cur_block;
 114     int i_next_vobu;
 115
 116     int i_mux_rate;
 117
 118     /* Current title start/end blocks */
 119     int i_title_start_block;
 120     int i_title_end_block;
 121     int i_title_blocks;
 122     int i_title_offset;
 123     mtime_t i_title_cur_time;
 124
 125     int i_title_start_cell;
 126     int i_title_end_cell;
 127     int i_cur_cell;
 128     int i_next_cell;
 129     mtime_t i_cell_cur_time;
 130     mtime_t i_cell_duration;
 131
 132     /* Track */
 133     ps_track_t    tk[PS_TK_COUNT];
 134
 135     int           i_titles;
 136     input_title_t **titles;
 137
 138     /* Video */
 139     int i_sar_num;
 140     int i_sar_den;
 141
 142     /* SPU */
 143     uint32_t clut[16];
 144 };
 145
 146 static int Control   ( demux_t *, int, va_list );
 147 static int Demux     ( demux_t * );
 148 static int DemuxBlock( demux_t *, const uint8_t *, int );
 149
 150 static void DemuxTitles( demux_t *, int * );
 151 static void ESNew( demux_t *, int, int );
 152
 153 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 154 static void DvdReadSeek     ( demux_t *, int );
 155 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 156 static void DvdReadFindCell ( demux_t * );
 157
 158 /*****************************************************************************
 159  * Open:
 160  *****************************************************************************/
 161 static int Open( vlc_object_t *p_this )
 162 {
 163     demux_t      *p_demux = (demux_t*)p_this;
 164     demux_sys_t  *p_sys;
 165     char         *psz_file;
 166     ifo_handle_t *p_vmg_file;
 167
 168     if( !p_demux->psz_file || !*p_demux->psz_file )
 169     {
 170         /* Only when selected */
 171         if( !p_demux->psz_access || !*p_demux->psz_access )
 172             return VLC_EGENERIC;
 173
 174         psz_file = var_InheritString( p_this, "dvd" );
 175     }
 176     else
 177         psz_file = strdup( p_demux->psz_file );
 178
 179 #if defined( _WIN32 ) || defined( __OS2__ )
 180     if( psz_file != NULL )
 181     {
 182         size_t flen = strlen( psz_file );
 183         if( flen > 0 && psz_file[flen - 1] == '\\' )
 184             psz_file[flen - 1] = '\0';
 185     }
 186     else
 187         psz_file = strdup("");
 188 #endif
 189     if( unlikely(psz_file == NULL) )
 190         return VLC_EGENERIC;
 191
 192     /* Open dvdread */
 193     const char *psz_path = ToLocale( psz_file );
 194     dvd_reader_t *p_dvdread = DVDOpen( psz_path );
 195
 196     LocaleFree( psz_path );
 197     if( p_dvdread == NULL )
 198     {
 199         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_file );
 200         dialog_Fatal( p_demux, _("Playback failure"),
 201                       _("DVDRead could not open the disc \"%s\"."), psz_file );
 202         free( psz_file );
 203         return VLC_EGENERIC;
 204     }
 205     free( psz_file );
 206
 207     /* Ifo allocation & initialisation */
 208     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 209     {
 210         msg_Warn( p_demux, "cannot open VMG info" );
 211         return VLC_EGENERIC;
 212     }
 213     msg_Dbg( p_demux, "VMG opened" );
 214
 215     /* Fill p_demux field */
 216     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 217
 218     ps_track_init( p_sys->tk );
 219     p_sys->i_sar_num = 0;
 220     p_sys->i_sar_den = 0;
 221     p_sys->i_title_cur_time = (mtime_t) 0;
 222     p_sys->i_cell_cur_time = (mtime_t) 0;
 223     p_sys->i_cell_duration = (mtime_t) 0;
 224
 225     p_sys->p_dvdread = p_dvdread;
 226     p_sys->p_vmg_file = p_vmg_file;
 227     p_sys->p_title = NULL;
 228     p_sys->p_vts_file = NULL;
 229
 230     p_sys->i_title = p_sys->i_chapter = -1;
 231     p_sys->i_mux_rate = 0;
 232
 233     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 234     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 235
 236     DemuxTitles( p_demux, &p_sys->i_angle );
 237     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 238     {
 239         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 240                  p_sys->i_angle );
 241         Close( p_this );
 242         return VLC_EGENERIC;
 243     }
 244
 245     return VLC_SUCCESS;
 246 }
 247
 248 /*****************************************************************************
 249  * Close:
 250  *****************************************************************************/
 251 static void Close( vlc_object_t *p_this )
 252 {
 253     demux_t     *p_demux = (demux_t*)p_this;
 254     demux_sys_t *p_sys = p_demux->p_sys;
 255     int i;
 256
 257     for( i = 0; i < PS_TK_COUNT; i++ )
 258     {
 259         ps_track_t *tk = &p_sys->tk[i];
 260         if( tk->b_seen )
 261         {
 262             es_format_Clean( &tk->fmt );
 263             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 264         }
 265     }
 266
 267     /* Free the array of titles */
 268     for( int i = 0; i < p_sys->i_titles; i++ )
 269         vlc_input_title_Delete( p_sys->titles[i] );
 270     TAB_CLEAN( p_sys->i_titles, p_sys->titles );
 271
 272     /* Close libdvdread */
 273     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 274     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 275     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 276     DVDClose( p_sys->p_dvdread );
 277
 278     free( p_sys );
 279 }
 280
 281 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 282 {
 283 /* Macro to convert Binary Coded Decimal to Decimal */
 284 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 285
 286     double f_fps, f_ms;
 287     int64_t i_micro_second = 0;
 288
 289     if (still_time == 0 || still_time == 0xFF)
 290     {
 291         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 292         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 293         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 294
 295         switch((dtime->frame_u & 0xc0) >> 6)
 296         {
 297         case 1:
 298             f_fps = 25.0;
 299             break;
 300         case 3:
 301             f_fps = 29.97;
 302             break;
 303         default:
 304             f_fps = 2500.0;
 305             break;
 306         }
 307         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 308         i_micro_second += (int64_t)(f_ms * 1000.0);
 309     }
 310     else
 311     {
 312         i_micro_second = still_time;
 313         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 314     }
 315
 316     return i_micro_second;
 317 }
 318
 319 /*****************************************************************************
 320  * Control:
 321  *****************************************************************************/
 322 static int Control( demux_t *p_demux, int i_query, va_list args )
 323 {
 324     demux_sys_t *p_sys = p_demux->p_sys;
 325     double f, *pf;
 326     bool *pb;
 327     int64_t *pi64;
 328     input_title_t ***ppp_title;
 329     int *pi_int;
 330     int i;
 331
 332     switch( i_query )
 333     {
 334         case DEMUX_GET_POSITION:
 335         {
 336             pf = (double*) va_arg( args, double* );
 337
 338             if( p_sys->i_title_blocks > 0 )
 339                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 340             else
 341                 *pf = 0.0;
 342
 343             return VLC_SUCCESS;
 344         }
 345         case DEMUX_SET_POSITION:
 346         {
 347             f = (double)va_arg( args, double );
 348
 349             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 350
 351             return VLC_SUCCESS;
 352         }
 353         case DEMUX_GET_TIME:
 354             pi64 = (int64_t*)va_arg( args, int64_t * );
 355             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 356             {
 357                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 358                         p_sys->i_title_blocks * p_sys->i_title_offset;
 359                 return VLC_SUCCESS;
 360             }
 361             *pi64 = 0;
 362             return VLC_EGENERIC;
 363
 364         case DEMUX_GET_LENGTH:
 365             pi64 = (int64_t*)va_arg( args, int64_t * );
 366             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 367             {
 368                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 369                 return VLC_SUCCESS;
 370             }
 371             *pi64 = 0;
 372             return VLC_EGENERIC;
 373
 374         /* Special for access_demux */
 375         case DEMUX_CAN_PAUSE:
 376         case DEMUX_CAN_SEEK:
 377         case DEMUX_CAN_CONTROL_PACE:
 378             /* TODO */
 379             pb = (bool*)va_arg( args, bool * );
 380             *pb = true;
 381             return VLC_SUCCESS;
 382
 383         case DEMUX_SET_PAUSE_STATE:
 384             return VLC_SUCCESS;
 385
 386         case DEMUX_GET_TITLE_INFO:
 387             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 388             pi_int    = (int*)va_arg( args, int* );
 389             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 390             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 391
 392             /* Duplicate title infos */
 393             *pi_int = p_sys->i_titles;
 394             *ppp_title = malloc( p_sys->i_titles * sizeof(input_title_t *) );
 395             for( i = 0; i < p_sys->i_titles; i++ )
 396             {
 397                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 398             }
 399             return VLC_SUCCESS;
 400
 401         case DEMUX_SET_TITLE:
 402             i = (int)va_arg( args, int );
 403             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 404             {
 405                 msg_Warn( p_demux, "cannot set title/chapter" );
 406                 return VLC_EGENERIC;
 407             }
 408             p_demux->info.i_update |=
 409                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 410             p_demux->info.i_title = i;
 411             p_demux->info.i_seekpoint = 0;
 412             return VLC_SUCCESS;
 413
 414         case DEMUX_SET_SEEKPOINT:
 415             i = (int)va_arg( args, int );
 416             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 417             {
 418                 msg_Warn( p_demux, "cannot set title/chapter" );
 419                 return VLC_EGENERIC;
 420             }
 421             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 422             p_demux->info.i_seekpoint = i;
 423             return VLC_SUCCESS;
 424
 425         case DEMUX_GET_PTS_DELAY:
 426             pi64 = (int64_t*)va_arg( args, int64_t * );
 427             *pi64 =
 428                 INT64_C(1000) * var_InheritInteger( p_demux, "disc-caching" );
 429             return VLC_SUCCESS;
 430
 431         /* TODO implement others */
 432         default:
 433             return VLC_EGENERIC;
 434     }
 435 }
 436
 437 /*****************************************************************************
 438  * Demux:
 439  *****************************************************************************/
 440 static int Demux( demux_t *p_demux )
 441 {
 442     demux_sys_t *p_sys = p_demux->p_sys;
 443
 444     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 445     int i_blocks_once, i_read;
 446     int i;
 447
 448     /*
 449      * Playback by cell in this pgc, starting at the cell for our chapter.
 450      */
 451
 452     /*
 453      * Check end of pack, and select the following one
 454      */
 455     if( !p_sys->i_pack_len )
 456     {
 457         /* Read NAV packet */
 458         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 459                            1, p_buffer ) != 1 )
 460         {
 461             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 462             dialog_Fatal( p_demux, _("Playback failure"),
 463                           _("DVDRead could not read block %d."),
 464                           p_sys->i_next_vobu );
 465             return -1;
 466         }
 467
 468         /* Basic check to be sure we don't have a empty title
 469          * go to next title if so */
 470         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 471
 472         /* Parse the contained dsi packet */
 473         DvdReadHandleDSI( p_demux, p_buffer );
 474
 475         /* End of title */
 476         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 477         {
 478             int k = p_sys->i_title;
 479
 480             /* Looking for a not broken title */
 481             while( k < p_sys->i_titles && DvdReadSetArea( p_demux, ++k, 0, -1 ) != VLC_SUCCESS )
 482             {
 483                 msg_Err(p_demux, "Failed next title, trying another: %i", k );
 484                 if( k >= p_sys->i_titles )
 485                     return 0; // EOF
 486             }
 487         }
 488
 489         if( p_sys->i_pack_len >= 1024 )
 490         {
 491             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 492                      "This shouldn't happen!", p_sys->i_pack_len );
 493             return 0; /* EOF */
 494         }
 495
 496         /* FIXME: Ugly kludge: we send the pack block to the input for it
 497          * sometimes has a zero scr and restart the sync */
 498         p_sys->i_cur_block++;
 499         p_sys->i_title_offset++;
 500
 501         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 502     }
 503
 504     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 505     {
 506         int k = p_sys->i_title;
 507
 508         /* Looking for a not broken title */
 509         while( k < p_sys->i_titles && DvdReadSetArea( p_demux, ++k, 0, -1 ) != VLC_SUCCESS )
 510         {
 511             msg_Err(p_demux, "Failed next title, trying another: %i", k );
 512             if( k >= p_sys->i_titles )
 513                 return 0; // EOF
 514         }
 515     }
 516
 517     /*
 518      * Read actual data
 519      */
 520     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 521     p_sys->i_pack_len -= i_blocks_once;
 522
 523     /* Reads from DVD */
 524     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 525                             i_blocks_once, p_buffer );
 526     if( i_read != i_blocks_once )
 527     {
 528         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 529                  i_read, i_blocks_once, p_sys->i_cur_block );
 530         dialog_Fatal( p_demux, _("Playback failure"),
 531                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 532                         i_read, i_blocks_once, p_sys->i_cur_block );
 533         return -1;
 534     }
 535
 536     p_sys->i_cur_block += i_read;
 537     p_sys->i_title_offset += i_read;
 538
 539 #if 0
 540     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 541              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 542 #endif
 543
 544     for( i = 0; i < i_read; i++ )
 545     {
 546         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 547                     DVD_VIDEO_LB_LEN );
 548     }
 549
 550 #undef p_pgc
 551
 552     return 1;
 553 }
 554
 555 /*****************************************************************************
 556  * DemuxBlock: demux a given block
 557  *****************************************************************************/
 558 static int DemuxBlock( demux_t *p_demux, const uint8_t *p, int len )
 559 {
 560     demux_sys_t *p_sys = p_demux->p_sys;
 561
 562     while( len > 0 )
 563     {
 564         int i_size = ps_pkt_size( p, len );
 565         if( i_size <= 0 || i_size > len )
 566         {
 567             break;
 568         }
 569
 570         /* Create a block */
 571         block_t *p_pkt = block_Alloc( i_size );
 572         memcpy( p_pkt->p_buffer, p, i_size);
 573
 574         /* Parse it and send it */
 575         switch( 0x100 | p[3] )
 576         {
 577         case 0x1b9:
 578         case 0x1bb:
 579         case 0x1bc:
 580
 581 #ifdef DVDREAD_DEBUG
 582             if( p[3] == 0xbc )
 583             {
 584                 msg_Warn( p_demux, "received a PSM packet" );
 585             }
 586             else if( p[3] == 0xbb )
 587             {
 588                 msg_Warn( p_demux, "received a SYSTEM packet" );
 589             }
 590 #endif
 591             block_Release( p_pkt );
 592             break;
 593
 594         case 0x1ba:
 595         {
 596             int64_t i_scr;
 597             int i_mux_rate;
 598             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 599             {
 600                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 601                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 602             }
 603             block_Release( p_pkt );
 604             break;
 605         }
 606         default:
 607         {
 608             int i_id = ps_pkt_id( p_pkt );
 609             if( i_id >= 0xc0 )
 610             {
 611                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 612
 613                 if( !tk->b_seen )
 614                 {
 615                     ESNew( p_demux, i_id, 0 );
 616                 }
 617                 if( tk->b_seen && tk->es &&
 618                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 619                 {
 620                     es_out_Send( p_demux->out, tk->es, p_pkt );
 621                 }
 622                 else
 623                 {
 624                     block_Release( p_pkt );
 625                 }
 626             }
 627             else
 628             {
 629                 block_Release( p_pkt );
 630             }
 631             break;
 632         }
 633         }
 634
 635         p += i_size;
 636         len -= i_size;
 637     }
 638
 639     return VLC_SUCCESS;
 640 }
 641
 642 /*****************************************************************************
 643  * ESNew: register a new elementary stream
 644  *****************************************************************************/
 645 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 646 {
 647     demux_sys_t *p_sys = p_demux->p_sys;
 648     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 649     char psz_language[3];
 650
 651     if( tk->b_seen ) return;
 652
 653     if( ps_track_fill( tk, 0, i_id, NULL ) )
 654     {
 655         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 656         return;
 657     }
 658
 659     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 660     if( i_lang && i_lang != 0xffff )
 661     {
 662         psz_language[0] = (i_lang >> 8)&0xff;
 663         psz_language[1] = (i_lang     )&0xff;
 664     }
 665
 666     /* Add a new ES */
 667     if( tk->fmt.i_cat == VIDEO_ES )
 668     {
 669         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 670         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 671     }
 672     else if( tk->fmt.i_cat == AUDIO_ES )
 673     {
 674 #if 0
 675         int i_audio = -1;
 676         /* find the audio number PLEASE find another way */
 677         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 678         {
 679             i_audio = i_id&0x07;
 680         }
 681         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 682         {
 683             i_audio = i_id&0xf;
 684         }
 685         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 686         {
 687             i_audio = i_id&0x1f;
 688         }
 689         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 690         {
 691             i_audio = i_id&0x1f;
 692         }
 693 #endif
 694
 695         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 696     }
 697     else if( tk->fmt.i_cat == SPU_ES )
 698     {
 699         /* Palette */
 700         tk->fmt.subs.spu.palette[0] = 0xBeef;
 701         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 702                 16 * sizeof( uint32_t ) );
 703
 704         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 705     }
 706
 707     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 708     tk->b_seen = true;
 709 }
 710
 711 /*****************************************************************************
 712  * DvdReadSetArea: initialize input data for title x, chapter y.
 713  * It should be called for each user navigation request.
 714  *****************************************************************************
 715  * Take care that i_title and i_chapter start from 0.
 716  *****************************************************************************/
 717 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 718                            int i_angle )
 719 {
 720     VLC_UNUSED( i_angle );
 721
 722     demux_sys_t *p_sys = p_demux->p_sys;
 723     int pgc_id = 0, pgn = 0;
 724     int i;
 725
 726 #define p_pgc p_sys->p_cur_pgc
 727 #define p_vmg p_sys->p_vmg_file
 728 #define p_vts p_sys->p_vts_file
 729
 730     if( i_title >= 0 && i_title < p_sys->i_titles &&
 731         i_title != p_sys->i_title )
 732     {
 733         int i_start_cell, i_end_cell;
 734
 735         if( p_sys->p_title != NULL )
 736         {
 737             DVDCloseFile( p_sys->p_title );
 738             p_sys->p_title = NULL;
 739         }
 740         if( p_vts != NULL ) ifoClose( p_vts );
 741         p_sys->i_title = i_title;
 742
 743         /*
 744          *  We have to load all title information
 745          */
 746         msg_Dbg( p_demux, "open VTS %d, for title %d",
 747                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 748
 749         /* Ifo vts */
 750         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 751                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 752         {
 753             msg_Err( p_demux, "fatal error in vts ifo" );
 754             return VLC_EGENERIC;
 755         }
 756
 757         /* Title position inside the selected vts */
 758         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 759
 760         /* Find title start/end */
 761         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 762         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 763         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 764
 765         if( p_pgc->cell_playback == NULL )
 766         {
 767             msg_Err( p_demux, "Invalid PGC (cell_playback_offset)" );
 768             return VLC_EGENERIC;
 769         }
 770
 771         p_sys->i_title_start_cell =
 772             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 773         p_sys->i_title_start_block =
 774             p_pgc->cell_playback[i_start_cell].first_sector;
 775
 776         p_sys->i_title_end_cell =
 777             i_end_cell = p_pgc->nr_of_cells - 1;
 778         p_sys->i_title_end_block =
 779             p_pgc->cell_playback[i_end_cell].last_sector;
 780
 781         p_sys->i_title_offset = 0;
 782
 783         p_sys->i_title_blocks = 0;
 784         for( i = i_start_cell; i <= i_end_cell; i++ )
 785         {
 786             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 787                 p_pgc->cell_playback[i].first_sector + 1;
 788         }
 789
 790         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 791                  "start %d end %d blocks: %d",
 792                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 793                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 794                  p_sys->i_title_blocks );
 795
 796         /*
 797          * Set properties for current chapter
 798          */
 799         p_sys->i_chapter = 0;
 800         p_sys->i_chapters =
 801             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 802
 803         pgc_id = p_vts->vts_ptt_srpt->title[
 804                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 805         pgn = p_vts->vts_ptt_srpt->title[
 806                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 807
 808         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 809         p_sys->i_pack_len = 0;
 810         p_sys->i_next_cell =
 811             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 812         DvdReadFindCell( p_demux );
 813
 814         p_sys->i_next_vobu = p_sys->i_cur_block =
 815             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 816
 817         /*
 818          * Angle management
 819          */
 820         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 821         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 822
 823         /*
 824          * We've got enough info, time to open the title set data.
 825          */
 826         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 827             p_vmg->tt_srpt->title[i_title].title_set_nr,
 828             DVD_READ_TITLE_VOBS ) ) )
 829         {
 830             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 831                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 832             return VLC_EGENERIC;
 833         }
 834
 835         //IfoPrintTitle( p_demux );
 836
 837         /*
 838          * Destroy obsolete ES by reinitializing program 0
 839          * and find all ES in title with ifo data
 840          */
 841         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 842
 843         for( i = 0; i < PS_TK_COUNT; i++ )
 844         {
 845             ps_track_t *tk = &p_sys->tk[i];
 846             if( tk->b_seen )
 847             {
 848                 es_format_Clean( &tk->fmt );
 849                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 850             }
 851             tk->b_seen = false;
 852         }
 853
 854         if( p_demux->info.i_title != i_title )
 855         {
 856             p_demux->info.i_update |=
 857                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 858             p_demux->info.i_title = i_title;
 859             p_demux->info.i_seekpoint = 0;
 860         }
 861
 862         /* TODO: re-add angles */
 863
 864
 865         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 866         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 867         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 868         int i_video_width;
 869         switch( p_attr->picture_size )
 870         {
 871         case 0:
 872             i_video_width = 720;
 873             break;
 874         case 1:
 875             i_video_width = 704;
 876             break;
 877         case 2:
 878             i_video_width = 352;
 879             break;
 880         default:
 881         case 3:
 882             i_video_width = 352;
 883             i_video_height /= 2;
 884             break;
 885         }
 886         switch( p_attr->display_aspect_ratio )
 887         {
 888         case 0:
 889             p_sys->i_sar_num = 4 * i_video_height;
 890             p_sys->i_sar_den = 3 * i_video_width;
 891             break;
 892         case 3:
 893             p_sys->i_sar_num = 16 * i_video_height;
 894             p_sys->i_sar_den =  9 * i_video_width;
 895             break;
 896         default:
 897             p_sys->i_sar_num = 0;
 898             p_sys->i_sar_den = 0;
 899             break;
 900         }
 901
 902 #define audio_control \
 903     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 904
 905         /* Audio ES, in the order they appear in the .ifo */
 906         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 907         {
 908             int i_position = 0;
 909             uint16_t i_id;
 910
 911             //IfoPrintAudio( p_demux, i );
 912
 913             /* Audio channel is active if first byte is 0x80 */
 914             if( audio_control & 0x8000 )
 915             {
 916                 i_position = ( audio_control & 0x7F00 ) >> 8;
 917
 918                 msg_Dbg( p_demux, "audio position  %d", i_position );
 919                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 920                 {
 921                 case 0x00: /* A52 */
 922                     i_id = (0x80 + i_position) | 0xbd00;
 923                     break;
 924                 case 0x02:
 925                 case 0x03: /* MPEG audio */
 926                     i_id = 0xc000 + i_position;
 927                     break;
 928                 case 0x04: /* LPCM */
 929                     i_id = (0xa0 + i_position) | 0xbd00;
 930                     break;
 931                 case 0x06: /* DTS */
 932                     i_id = (0x88 + i_position) | 0xbd00;
 933                     break;
 934                 default:
 935                     i_id = 0;
 936                     msg_Err( p_demux, "unknown audio type %.2x",
 937                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 938                 }
 939
 940                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 941                        vts_audio_attr[i - 1].lang_code );
 942             }
 943         }
 944 #undef audio_control
 945
 946 #define spu_palette \
 947     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 948
 949         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 950
 951 #define spu_control \
 952     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 953
 954         /* Sub Picture ES */
 955         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 956         {
 957             int i_position = 0;
 958             uint16_t i_id;
 959
 960             //IfoPrintSpu( p_sys, i );
 961             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 962
 963             if( spu_control & 0x80000000 )
 964             {
 965                 /*  there are several streams for one spu */
 966                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 967                 {
 968                     /* 16:9 */
 969                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 970                     {
 971                     case 1: /* letterbox */
 972                         i_position = spu_control & 0xff;
 973                         break;
 974                     case 2: /* pan&scan */
 975                         i_position = ( spu_control >> 8 ) & 0xff;
 976                         break;
 977                     default: /* widescreen */
 978                         i_position = ( spu_control >> 16 ) & 0xff;
 979                         break;
 980                     }
 981                 }
 982                 else
 983                 {
 984                     /* 4:3 */
 985                     i_position = ( spu_control >> 24 ) & 0x7F;
 986                 }
 987
 988                 i_id = (0x20 + i_position) | 0xbd00;
 989
 990                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 991                        vts_subp_attr[i - 1].lang_code );
 992             }
 993         }
 994 #undef spu_control
 995
 996     }
 997     else if( i_title != -1 && i_title != p_sys->i_title )
 998
 999     {
1000         return VLC_EGENERIC; /* Couldn't set title */
1001     }
1002
1003     /*
1004      * Chapter selection
1005      */
1006
1007     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
1008     {
1009         pgc_id = p_vts->vts_ptt_srpt->title[
1010                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1011         pgn = p_vts->vts_ptt_srpt->title[
1012                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1013
1014         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1015         if( p_pgc->cell_playback == NULL )
1016             return VLC_EGENERIC; /* Couldn't set chapter */
1017
1018         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1019         p_sys->i_chapter = i_chapter;
1020         DvdReadFindCell( p_demux );
1021
1022         p_sys->i_title_offset = 0;
1023         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1024         {
1025             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1026                 p_pgc->cell_playback[i].first_sector + 1;
1027         }
1028
1029         p_sys->i_pack_len = 0;
1030         p_sys->i_next_vobu = p_sys->i_cur_block =
1031             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1032
1033         if( p_demux->info.i_seekpoint != i_chapter )
1034         {
1035             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1036             p_demux->info.i_seekpoint = i_chapter;
1037         }
1038     }
1039     else if( i_chapter != -1 )
1040
1041     {
1042         return VLC_EGENERIC; /* Couldn't set chapter */
1043     }
1044
1045 #undef p_pgc
1046 #undef p_vts
1047 #undef p_vmg
1048
1049     return VLC_SUCCESS;
1050 }
1051
1052 /*****************************************************************************
1053  * DvdReadSeek : Goes to a given position on the stream.
1054  *****************************************************************************
1055  * This one is used by the input and translate chronological position from
1056  * input to logical position on the device.
1057  *****************************************************************************/
1058 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1059 {
1060     demux_sys_t *p_sys = p_demux->p_sys;
1061     int i_chapter = 0;
1062     int i_cell = 0;
1063     int i_vobu = 0;
1064     int i_sub_cell = 0;
1065     int i_block;
1066
1067 #define p_pgc p_sys->p_cur_pgc
1068 #define p_vts p_sys->p_vts_file
1069
1070     /* Find cell */
1071     i_block = i_block_offset;
1072     for( i_cell = p_sys->i_title_start_cell;
1073          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1074     {
1075         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1076             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1077
1078         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1079             p_pgc->cell_playback[i_cell].first_sector + 1);
1080     }
1081     if( i_cell > p_sys->i_title_end_cell )
1082     {
1083         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1084         return;
1085     }
1086     i_block += p_pgc->cell_playback[i_cell].first_sector;
1087     p_sys->i_title_offset = i_block_offset;
1088
1089     /* Find chapter */
1090     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1091     {
1092         int pgc_id, pgn, i_tmp;
1093
1094         pgc_id = p_vts->vts_ptt_srpt->title[
1095                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1096         pgn = p_vts->vts_ptt_srpt->title[
1097                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1098
1099         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1100
1101         if( i_tmp > i_cell ) break;
1102     }
1103
1104     if( i_chapter < p_sys->i_chapters &&
1105         p_demux->info.i_seekpoint != i_chapter )
1106     {
1107         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1108         p_demux->info.i_seekpoint = i_chapter;
1109     }
1110
1111     /* Find vobu */
1112     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1113     {
1114         i_vobu++;
1115     }
1116
1117     /* Find sub_cell */
1118     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1119            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1120     {
1121         i_sub_cell++;
1122     }
1123
1124 #if 1
1125     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1126              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1127              i_cell, i_sub_cell, i_chapter, i_vobu,
1128              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1129              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1130              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1131 #endif
1132
1133     p_sys->i_cur_block = i_block;
1134     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1135     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1136     p_sys->i_cur_cell = i_cell;
1137     p_sys->i_chapter = i_chapter;
1138     DvdReadFindCell( p_demux );
1139
1140 #undef p_vts
1141 #undef p_pgc
1142
1143     return;
1144 }
1145
1146 /*****************************************************************************
1147  * DvdReadHandleDSI
1148  *****************************************************************************/
1149 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1150 {
1151     demux_sys_t *p_sys = p_demux->p_sys;
1152
1153     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1154
1155     /*
1156      * Determine where we go next.  These values are the ones we mostly
1157      * care about.
1158      */
1159     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1160     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1161
1162     /*
1163      * Store the timecodes so we can get the current time
1164      */
1165     p_sys->i_title_cur_time = (mtime_t) p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000;
1166     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1167
1168     /*
1169      * If we're not at the end of this cell, we can determine the next
1170      * VOBU to display using the VOBU_SRI information section of the
1171      * DSI.  Using this value correctly follows the current angle,
1172      * avoiding the doubled scenes in The Matrix, and makes our life
1173      * really happy.
1174      */
1175
1176     p_sys->i_next_vobu = p_sys->i_cur_block +
1177         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1178
1179     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1180         && p_sys->i_angle > 1 )
1181     {
1182         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1183         {
1184         case 0x4:
1185             /* Interleaved unit with no angle */
1186             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1187             {
1188                 p_sys->i_next_vobu = p_sys->i_cur_block +
1189                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1190                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1191             }
1192             else
1193             {
1194                 p_sys->i_next_vobu = p_sys->i_cur_block +
1195                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1196             }
1197             break;
1198         case 0x5:
1199             /* vobu is end of ilvu */
1200             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1201             {
1202                 p_sys->i_next_vobu = p_sys->i_cur_block +
1203                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1204                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1205
1206                 break;
1207             }
1208         case 0x6:
1209             /* vobu is beginning of ilvu */
1210         case 0x9:
1211             /* next scr is 0 */
1212         case 0xa:
1213             /* entering interleaved section */
1214         case 0x8:
1215             /* non interleaved cells in interleaved section */
1216         default:
1217             p_sys->i_next_vobu = p_sys->i_cur_block +
1218                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1219             break;
1220         }
1221     }
1222     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1223     {
1224         p_sys->i_cur_cell = p_sys->i_next_cell;
1225
1226         /* End of title */
1227         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1228
1229         DvdReadFindCell( p_demux );
1230
1231         p_sys->i_next_vobu =
1232             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1233
1234         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 );
1235     }
1236
1237
1238 #if 0
1239     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1240              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1241              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1242              p_sys->dsi_pack.dsi_gi.vobu_ea,
1243              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1244              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1245              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1246
1247     msg_Dbg( p_demux, "cell duration: %lld",
1248              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1249
1250     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1251              p_sys->dsi_pack.sml_pbi.category,
1252              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1253              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1254              p_sys->dsi_pack.sml_pbi.size );
1255
1256     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1257              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1258              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1259              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1260 #endif
1261 }
1262
1263 /*****************************************************************************
1264  * DvdReadFindCell
1265  *****************************************************************************/
1266 static void DvdReadFindCell( demux_t *p_demux )
1267 {
1268     demux_sys_t *p_sys = p_demux->p_sys;
1269
1270     pgc_t *p_pgc;
1271     int   pgc_id, pgn;
1272     int   i = 0;
1273
1274 #define cell p_sys->p_cur_pgc->cell_playback
1275
1276     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1277     {
1278         p_sys->i_cur_cell += p_sys->i_angle - 1;
1279
1280         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1281         {
1282             i++;
1283         }
1284         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1285     }
1286     else
1287     {
1288         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1289     }
1290
1291 #undef cell
1292
1293     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1294
1295     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1296                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1297     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1298               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1299     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1300
1301     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1302     {
1303         p_sys->i_chapter++;
1304
1305         if( p_sys->i_chapter < p_sys->i_chapters &&
1306             p_demux->info.i_seekpoint != p_sys->i_chapter )
1307         {
1308             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1309             p_demux->info.i_seekpoint = p_sys->i_chapter;
1310         }
1311     }
1312 }
1313
1314 /*****************************************************************************
1315  * DemuxTitles: get the titles/chapters structure
1316  *****************************************************************************/
1317 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1318 {
1319     VLC_UNUSED( pi_angle );
1320
1321     demux_sys_t *p_sys = p_demux->p_sys;
1322     input_title_t *t;
1323     seekpoint_t *s;
1324
1325     /* Find out number of titles/chapters */
1326 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1327
1328     int32_t i_titles = tt_srpt->nr_of_srpts;
1329     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1330
1331     for( int i = 0; i < i_titles; i++ )
1332     {
1333         int32_t i_chapters = 0;
1334         int j;
1335
1336         i_chapters = tt_srpt->title[i].nr_of_ptts;
1337         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1338
1339         t = vlc_input_title_New();
1340
1341         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1342         {
1343             s = vlc_seekpoint_New();
1344             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1345         }
1346
1347         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1348     }
1349
1350 #undef tt_srpt
1351 }