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

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: St�hane 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 #include <stdio.h>
  29 #include <stdlib.h>                                      /* malloc(), free() */
  30 #include <string.h>                                              /* strdup() */
  31
  32 #include <vlc/vlc.h>
  33 #include <vlc/input.h>
  34
  35 #include "iso_lang.h"
  36
  37 #include "../demux/ps.h"
  38
  39 #ifdef HAVE_UNISTD_H
  40 #   include <unistd.h>
  41 #endif
  42
  43 #include <fcntl.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <string.h>
  47
  48 #include <dvdread/dvd_reader.h>
  49 #include <dvdread/ifo_types.h>
  50 #include <dvdread/ifo_read.h>
  51 #include <dvdread/nav_read.h>
  52 #include <dvdread/nav_print.h>
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57 #define ANGLE_TEXT N_("DVD angle")
  58 #define ANGLE_LONGTEXT N_( \
  59     "Allows you to select the default DVD angle." )
  60
  61 #define CACHING_TEXT N_("Caching value in ms")
  62 #define CACHING_LONGTEXT N_( \
  63     "Allows you to modify the default caching value for DVDread streams. " \
  64     "This value should be set in millisecond units." )
  65
  66 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  67 #define CSSMETHOD_LONGTEXT N_( \
  68     "Set the method used by libdvdcss for key decryption.\n" \
  69     "title: decrypted title key is guessed from the encrypted sectors of " \
  70            "the stream. Thus it should work with a file as well as the " \
  71            "DVD device. But it sometimes takes much time to decrypt a title " \
  72            "key and may even fail. With this method, the key is only checked "\
  73            "at the beginning of each title, so it won't work if the key " \
  74            "changes in the middle of a title.\n" \
  75     "disc: the disc key is first cracked, then all title keys can be " \
  76            "decrypted instantly, which allows us to check them often.\n" \
  77     "key: the same as \"disc\" if you don't have a file with player keys " \
  78            "at compilation time. If you do, the decryption of the disc key " \
  79            "will be faster with this method. It is the one that was used by " \
  80            "libcss.\n" \
  81     "The default method is: key.")
  82
  83 static char *psz_css_list[] = { "title", "disc", "key" };
  84 static char *psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
  85
  86 static int  Open ( vlc_object_t * );
  87 static void Close( vlc_object_t * );
  88
  89 vlc_module_begin();
  90     set_shortname( _("DVD without menus") );
  91     set_description( _("DVDRead Input (DVD without menu support)") );
  92     set_category( CAT_INPUT );
  93     set_subcategory( SUBCAT_INPUT_ACCESS );
  94     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
  95         ANGLE_LONGTEXT, VLC_FALSE );
  96     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
  97         CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
  98     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
  99                 CSSMETHOD_LONGTEXT, VLC_TRUE );
 100         change_string_list( psz_css_list, psz_css_list_text, 0 );
 101     set_capability( "access_demux", 0 );
 102     add_shortcut( "dvd" );
 103     add_shortcut( "dvdread" );
 104     add_shortcut( "dvdsimple" );
 105     set_callbacks( Open, Close );
 106 vlc_module_end();
 107
 108 /* how many blocks DVDRead will read in each loop */
 109 #define DVD_BLOCK_READ_ONCE 4
 110
 111 /*****************************************************************************
 112  * Local prototypes
 113  *****************************************************************************/
 114
 115 struct demux_sys_t
 116 {
 117     /* DVDRead state */
 118     dvd_reader_t *p_dvdread;
 119     dvd_file_t   *p_title;
 120
 121     ifo_handle_t *p_vmg_file;
 122     ifo_handle_t *p_vts_file;
 123
 124     int i_title;
 125     int i_chapter, i_chapters;
 126     int i_angle, i_angles;
 127
 128     tt_srpt_t    *p_tt_srpt;
 129     pgc_t        *p_cur_pgc;
 130     dsi_t        dsi_pack;
 131     int          i_ttn;
 132
 133     int i_pack_len;
 134     int i_cur_block;
 135     int i_next_vobu;
 136
 137     int i_mux_rate;
 138
 139     /* Current title start/end blocks */
 140     int i_title_start_block;
 141     int i_title_end_block;
 142     int i_title_blocks;
 143     int i_title_offset;
 144     mtime_t i_title_cur_time;
 145
 146     int i_title_start_cell;
 147     int i_title_end_cell;
 148     int i_cur_cell;
 149     int i_next_cell;
 150     mtime_t i_cell_cur_time;
 151     mtime_t i_cell_duration;
 152
 153     /* Track */
 154     ps_track_t    tk[PS_TK_COUNT];
 155
 156     int           i_titles;
 157     input_title_t **titles;
 158
 159     /* Video */
 160     int i_aspect;
 161
 162     /* SPU */
 163     uint32_t clut[16];
 164 };
 165
 166 static int Control   ( demux_t *, int, va_list );
 167 static int Demux     ( demux_t * );
 168 static int DemuxBlock( demux_t *, uint8_t *, int );
 169
 170 static void DemuxTitles( demux_t *, int * );
 171 static void ESNew( demux_t *, int, int );
 172
 173 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 174 static void DvdReadSeek     ( demux_t *, int );
 175 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 176 static void DvdReadFindCell ( demux_t * );
 177
 178 /*****************************************************************************
 179  * Open:
 180  *****************************************************************************/
 181 static int Open( vlc_object_t *p_this )
 182 {
 183     demux_t      *p_demux = (demux_t*)p_this;
 184     demux_sys_t  *p_sys;
 185     char         *psz_name;
 186     char         *psz_dvdcss_env;
 187     dvd_reader_t *p_dvdread;
 188     ifo_handle_t *p_vmg_file;
 189     vlc_value_t  val;
 190
 191     if( !p_demux->psz_path || !*p_demux->psz_path )
 192     {
 193         /* Only when selected */
 194         if( !p_this->b_force ) return VLC_EGENERIC;
 195
 196         psz_name = var_CreateGetString( p_this, "dvd" );
 197         if( !psz_name )
 198         {
 199             psz_name = strdup("");
 200         }
 201     }
 202     else
 203         psz_name = strdup( p_demux->psz_path );
 204
 205 #ifdef WIN32
 206     if( psz_name[0] && psz_name[1] == ':' &&
 207         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 208 #endif
 209
 210     /* Override environment variable DVDCSS_METHOD with config option
 211      * (FIXME: this creates a small memory leak) */
 212     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 213     if( psz_dvdcss_env && *psz_dvdcss_env )
 214     {
 215         char *psz_env;
 216
 217         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 218                           strlen( psz_dvdcss_env ) + 1 );
 219         if( !psz_env )
 220         {
 221             free( psz_dvdcss_env );
 222             return VLC_ENOMEM;
 223         }
 224
 225         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 226
 227         putenv( psz_env );
 228     }
 229     if( psz_dvdcss_env ) free( psz_dvdcss_env );
 230
 231     /* Open dvdread */
 232     if( !(p_dvdread = DVDOpen( psz_name )) )
 233     {
 234         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 235         free( psz_name );
 236         return VLC_EGENERIC;
 237     }
 238     free( psz_name );
 239
 240     /* Ifo allocation & initialisation */
 241     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 242     {
 243         msg_Warn( p_demux, "cannot open VMG info" );
 244         return VLC_EGENERIC;
 245     }
 246     msg_Dbg( p_demux, "VMG opened" );
 247
 248     /* Fill p_demux field */
 249     p_demux->pf_demux = Demux;
 250     p_demux->pf_control = Control;
 251     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
 252     memset( p_sys, 0, sizeof( demux_sys_t ) );
 253
 254     ps_track_init( p_sys->tk );
 255     p_sys->i_aspect = -1;
 256     p_sys->i_title_cur_time = (mtime_t) 0;
 257     p_sys->i_cell_cur_time = (mtime_t) 0;
 258     p_sys->i_cell_duration = (mtime_t) 0;
 259
 260     p_sys->p_dvdread = p_dvdread;
 261     p_sys->p_vmg_file = p_vmg_file;
 262     p_sys->p_title = NULL;
 263     p_sys->p_vts_file = NULL;
 264
 265     p_sys->i_title = p_sys->i_chapter = -1;
 266     p_sys->i_mux_rate = 0;
 267
 268     var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 269     var_Get( p_demux, "dvdread-angle", &val );
 270     p_sys->i_angle = val.i_int > 0 ? val.i_int : 1;
 271
 272     DemuxTitles( p_demux, &p_sys->i_angle );
 273     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 274     {
 275         Close( p_this );
 276         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 277                  p_sys->i_angle );
 278         return VLC_EGENERIC;
 279     }
 280
 281     /* Update default_pts to a suitable value for dvdread access */
 282     var_Create( p_demux, "dvdread-caching",
 283                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 284
 285     return VLC_SUCCESS;
 286 }
 287
 288 /*****************************************************************************
 289  * Close:
 290  *****************************************************************************/
 291 static void Close( vlc_object_t *p_this )
 292 {
 293     demux_t     *p_demux = (demux_t*)p_this;
 294     demux_sys_t *p_sys = p_demux->p_sys;
 295     int i;
 296
 297     for( i = 0; i < PS_TK_COUNT; i++ )
 298     {
 299         ps_track_t *tk = &p_sys->tk[i];
 300         if( tk->b_seen )
 301         {
 302             es_format_Clean( &tk->fmt );
 303             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 304         }
 305     }
 306
 307     /* Close libdvdread */
 308     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 309     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 310     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 311     DVDClose( p_sys->p_dvdread );
 312
 313     free( p_sys );
 314 }
 315
 316 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 317 {
 318 /* Macro to convert Binary Coded Decimal to Decimal */
 319 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 320
 321     double f_fps, f_ms;
 322     int64_t i_micro_second = 0;
 323
 324     if (still_time == 0 || still_time == 0xFF)
 325     {
 326         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 327         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 328         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 329
 330         switch((dtime->frame_u & 0xc0) >> 6)
 331         {
 332         case 1:
 333             f_fps = 25.0;
 334             break;
 335         case 3:
 336             f_fps = 29.97;
 337             break;
 338         default:
 339             f_fps = 2500.0;
 340             break;
 341         }
 342         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 343         i_micro_second += (int64_t)(f_ms * 1000.0);
 344     }
 345     else
 346     {
 347         i_micro_second = still_time;
 348         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 349     }
 350
 351     return i_micro_second;
 352 }
 353
 354 /*****************************************************************************
 355  * Control:
 356  *****************************************************************************/
 357 static int Control( demux_t *p_demux, int i_query, va_list args )
 358 {
 359     demux_sys_t *p_sys = p_demux->p_sys;
 360     double f, *pf;
 361     vlc_bool_t *pb;
 362     int64_t *pi64;
 363     input_title_t ***ppp_title;
 364     int *pi_int;
 365     int i;
 366
 367     switch( i_query )
 368     {
 369         case DEMUX_GET_POSITION:
 370         {
 371             pf = (double*) va_arg( args, double* );
 372
 373             if( p_sys->i_title_blocks > 0 )
 374                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 375             else
 376                 *pf = 0.0;
 377
 378             return VLC_SUCCESS;
 379         }
 380         case DEMUX_SET_POSITION:
 381         {
 382             f = (double)va_arg( args, double );
 383
 384             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 385
 386             return VLC_SUCCESS;
 387         }
 388         case DEMUX_GET_TIME:
 389             pi64 = (int64_t*)va_arg( args, int64_t * );
 390             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 391             {
 392                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 393                         p_sys->i_title_blocks * p_sys->i_title_offset;
 394                 return VLC_SUCCESS;
 395             }
 396             *pi64 = 0;
 397             return VLC_EGENERIC;
 398
 399         case DEMUX_GET_LENGTH:
 400             pi64 = (int64_t*)va_arg( args, int64_t * );
 401             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 402             {
 403                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 404                 return VLC_SUCCESS;
 405             }
 406             *pi64 = 0;
 407             return VLC_EGENERIC;
 408
 409         /* Special for access_demux */
 410         case DEMUX_CAN_PAUSE:
 411         case DEMUX_CAN_CONTROL_PACE:
 412             /* TODO */
 413             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 414             *pb = VLC_TRUE;
 415             return VLC_SUCCESS;
 416
 417         case DEMUX_SET_PAUSE_STATE:
 418             return VLC_SUCCESS;
 419
 420         case DEMUX_GET_TITLE_INFO:
 421             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 422             pi_int    = (int*)va_arg( args, int* );
 423             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 424             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 425
 426             /* Duplicate title infos */
 427             *pi_int = p_sys->i_titles;
 428             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 429             for( i = 0; i < p_sys->i_titles; i++ )
 430             {
 431                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 432             }
 433             return VLC_SUCCESS;
 434
 435         case DEMUX_SET_TITLE:
 436             i = (int)va_arg( args, int );
 437             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 438             {
 439                 msg_Warn( p_demux, "cannot set title/chapter" );
 440                 return VLC_EGENERIC;
 441             }
 442             p_demux->info.i_update |=
 443                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 444             p_demux->info.i_title = i;
 445             p_demux->info.i_seekpoint = 0;
 446             return VLC_SUCCESS;
 447
 448         case DEMUX_SET_SEEKPOINT:
 449             i = (int)va_arg( args, int );
 450             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 451             {
 452                 msg_Warn( p_demux, "cannot set title/chapter" );
 453                 return VLC_EGENERIC;
 454             }
 455             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 456             p_demux->info.i_seekpoint = i;
 457             return VLC_SUCCESS;
 458
 459         case DEMUX_GET_PTS_DELAY:
 460             pi64 = (int64_t*)va_arg( args, int64_t * );
 461             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 462             return VLC_SUCCESS;
 463
 464         /* TODO implement others */
 465         default:
 466             return VLC_EGENERIC;
 467     }
 468 }
 469
 470 /*****************************************************************************
 471  * Demux:
 472  *****************************************************************************/
 473 static int Demux( demux_t *p_demux )
 474 {
 475     demux_sys_t *p_sys = p_demux->p_sys;
 476
 477     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 478     int i_blocks_once, i_read;
 479     int i;
 480
 481     /*
 482      * Playback by cell in this pgc, starting at the cell for our chapter.
 483      */
 484
 485     /*
 486      * Check end of pack, and select the following one
 487      */
 488     if( !p_sys->i_pack_len )
 489     {
 490         /* Read NAV packet */
 491         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 492                            1, p_buffer ) != 1 )
 493         {
 494             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 495             return -1;
 496         }
 497
 498         /* Basic check to be sure we don't have a empty title
 499          * go to next title if so */
 500         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 501
 502         /* Parse the contained dsi packet */
 503         DvdReadHandleDSI( p_demux, p_buffer );
 504
 505         /* End of title */
 506         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 507         {
 508             if( p_sys->i_title + 1 >= p_sys->i_titles )
 509             {
 510                 return 0; /* EOF */
 511             }
 512
 513             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 514         }
 515
 516         if( p_sys->i_pack_len >= 1024 )
 517         {
 518             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 519                      "This shouldn't happen!", p_sys->i_pack_len );
 520             return 0; /* EOF */
 521         }
 522
 523         /* FIXME: Ugly kludge: we send the pack block to the input for it
 524          * sometimes has a zero scr and restart the sync */
 525         p_sys->i_cur_block++;
 526         p_sys->i_title_offset++;
 527
 528         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 529     }
 530
 531     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 532     {
 533         if( p_sys->i_title + 1 >= p_sys->i_titles )
 534         {
 535             return 0; /* EOF */
 536         }
 537
 538         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 539     }
 540
 541     /*
 542      * Read actual data
 543      */
 544     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 545     p_sys->i_pack_len -= i_blocks_once;
 546
 547     /* Reads from DVD */
 548     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 549                             i_blocks_once, p_buffer );
 550     if( i_read != i_blocks_once )
 551     {
 552         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 553                  i_read, i_blocks_once, p_sys->i_cur_block );
 554         return -1;
 555     }
 556
 557     p_sys->i_cur_block += i_read;
 558     p_sys->i_title_offset += i_read;
 559
 560 #if 0
 561     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 562              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 563 #endif
 564
 565     for( i = 0; i < i_read; i++ )
 566     {
 567         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 568                     DVD_VIDEO_LB_LEN );
 569     }
 570
 571 #undef p_pgc
 572
 573     return 1;
 574 }
 575
 576 /*****************************************************************************
 577  * DemuxBlock: demux a given block
 578  *****************************************************************************/
 579 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 580 {
 581     demux_sys_t *p_sys = p_demux->p_sys;
 582     uint8_t     *p = pkt;
 583
 584     while( p < &pkt[i_pkt] )
 585     {
 586         int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
 587         block_t *p_pkt;
 588         if( i_size <= 0 )
 589         {
 590             break;
 591         }
 592
 593         /* Create a block */
 594         p_pkt = block_New( p_demux, i_size );
 595         memcpy( p_pkt->p_buffer, p, i_size);
 596
 597         /* Parse it and send it */
 598         switch( 0x100 | p[3] )
 599         {
 600         case 0x1b9:
 601         case 0x1bb:
 602         case 0x1bc:
 603
 604 #ifdef DVDREAD_DEBUG
 605             if( p[3] == 0xbc )
 606             {
 607                 msg_Warn( p_demux, "received a PSM packet" );
 608             }
 609             else if( p[3] == 0xbb )
 610             {
 611                 msg_Warn( p_demux, "received a SYSTEM packet" );
 612             }
 613 #endif
 614             block_Release( p_pkt );
 615             break;
 616
 617         case 0x1ba:
 618         {
 619             int64_t i_scr;
 620             int i_mux_rate;
 621             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 622             {
 623                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 624                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 625             }
 626             block_Release( p_pkt );
 627             break;
 628         }
 629         default:
 630         {
 631             int i_id = ps_pkt_id( p_pkt );
 632             if( i_id >= 0xc0 )
 633             {
 634                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 635
 636                 if( !tk->b_seen )
 637                 {
 638                     ESNew( p_demux, i_id, 0 );
 639                 }
 640                 if( tk->b_seen && tk->es &&
 641                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 642                 {
 643                     es_out_Send( p_demux->out, tk->es, p_pkt );
 644                 }
 645                 else
 646                 {
 647                     block_Release( p_pkt );
 648                 }
 649             }
 650             else
 651             {
 652                 block_Release( p_pkt );
 653             }
 654             break;
 655         }
 656         }
 657
 658         p += i_size;
 659     }
 660
 661     return VLC_SUCCESS;
 662 }
 663
 664 /*****************************************************************************
 665  * ESNew: register a new elementary stream
 666  *****************************************************************************/
 667 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 668 {
 669     demux_sys_t *p_sys = p_demux->p_sys;
 670     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 671     char psz_language[3];
 672
 673     if( tk->b_seen ) return;
 674
 675     if( ps_track_fill( tk, 0, i_id ) )
 676     {
 677         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 678         return;
 679     }
 680
 681     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 682     if( i_lang && i_lang != 0xffff )
 683     {
 684         psz_language[0] = (i_lang >> 8)&0xff;
 685         psz_language[1] = (i_lang     )&0xff;
 686     }
 687
 688     /* Add a new ES */
 689     if( tk->fmt.i_cat == VIDEO_ES )
 690     {
 691         if( p_sys->i_aspect >= 0 )
 692         {
 693             tk->fmt.video.i_aspect = p_sys->i_aspect;
 694         }
 695     }
 696     else if( tk->fmt.i_cat == AUDIO_ES )
 697     {
 698         int i_audio = -1;
 699         /* find the audio number PLEASE find another way */
 700         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 701         {
 702             i_audio = i_id&0x07;
 703         }
 704         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 705         {
 706             i_audio = i_id&0xf;
 707         }
 708         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 709         {
 710             i_audio = i_id&0x1f;
 711         }
 712         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 713         {
 714             i_audio = i_id&0x1f;
 715         }
 716
 717         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 718     }
 719     else if( tk->fmt.i_cat == SPU_ES )
 720     {
 721         /* Palette */
 722         tk->fmt.subs.spu.palette[0] = 0xBeef;
 723         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 724                 16 * sizeof( uint32_t ) );
 725
 726         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 727     }
 728
 729     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 730     tk->b_seen = VLC_TRUE;
 731 }
 732
 733 /*****************************************************************************
 734  * DvdReadSetArea: initialize input data for title x, chapter y.
 735  * It should be called for each user navigation request.
 736  *****************************************************************************
 737  * Take care that i_title and i_chapter start from 0.
 738  *****************************************************************************/
 739 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 740                            int i_angle )
 741 {
 742     demux_sys_t *p_sys = p_demux->p_sys;
 743     int pgc_id = 0, pgn = 0;
 744     int i;
 745
 746 #define p_pgc p_sys->p_cur_pgc
 747 #define p_vmg p_sys->p_vmg_file
 748 #define p_vts p_sys->p_vts_file
 749
 750     if( i_title >= 0 && i_title < p_sys->i_titles &&
 751         i_title != p_sys->i_title )
 752     {
 753         int i_start_cell, i_end_cell;
 754
 755         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 756         if( p_vts != NULL ) ifoClose( p_vts );
 757         p_sys->i_title = i_title;
 758
 759         /*
 760          *  We have to load all title information
 761          */
 762         msg_Dbg( p_demux, "open VTS %d, for title %d",
 763                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 764
 765         /* Ifo vts */
 766         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 767                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 768         {
 769             msg_Err( p_demux, "fatal error in vts ifo" );
 770             return VLC_EGENERIC;
 771         }
 772
 773         /* Title position inside the selected vts */
 774         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 775
 776         /* Find title start/end */
 777         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 778         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 779         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 780
 781         p_sys->i_title_start_cell =
 782             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 783         p_sys->i_title_start_block =
 784             p_pgc->cell_playback[i_start_cell].first_sector;
 785
 786         p_sys->i_title_end_cell =
 787             i_end_cell = p_pgc->nr_of_cells - 1;
 788         p_sys->i_title_end_block =
 789             p_pgc->cell_playback[i_end_cell].last_sector;
 790
 791         p_sys->i_title_offset = 0;
 792
 793         p_sys->i_title_blocks = 0;
 794         for( i = i_start_cell; i <= i_end_cell; i++ )
 795         {
 796             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 797                 p_pgc->cell_playback[i].first_sector + 1;
 798         }
 799
 800         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 801                  "start %d end %d blocks: %d",
 802                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 803                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 804                  p_sys->i_title_blocks );
 805
 806         /*
 807          * Set properties for current chapter
 808          */
 809         p_sys->i_chapter = 0;
 810         p_sys->i_chapters =
 811             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 812
 813         pgc_id = p_vts->vts_ptt_srpt->title[
 814                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 815         pgn = p_vts->vts_ptt_srpt->title[
 816                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 817
 818         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 819         p_sys->i_pack_len = 0;
 820         p_sys->i_next_cell =
 821             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 822         DvdReadFindCell( p_demux );
 823
 824         p_sys->i_next_vobu = p_sys->i_cur_block =
 825             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 826
 827         /*
 828          * Angle management
 829          */
 830         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 831         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 832
 833         /*
 834          * We've got enough info, time to open the title set data.
 835          */
 836         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 837             p_vmg->tt_srpt->title[i_title].title_set_nr,
 838             DVD_READ_TITLE_VOBS ) ) )
 839         {
 840             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 841                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 842             return VLC_EGENERIC;
 843         }
 844
 845         //IfoPrintTitle( p_demux );
 846
 847         /*
 848          * Destroy obsolete ES by reinitializing program 0
 849          * and find all ES in title with ifo data
 850          */
 851         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 852
 853         for( i = 0; i < PS_TK_COUNT; i++ )
 854         {
 855             ps_track_t *tk = &p_sys->tk[i];
 856             if( tk->b_seen )
 857             {
 858                 es_format_Clean( &tk->fmt );
 859                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 860             }
 861             tk->b_seen = VLC_FALSE;
 862         }
 863
 864         if( p_demux->info.i_title != i_title )
 865         {
 866             p_demux->info.i_update |=
 867                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 868             p_demux->info.i_title = i_title;
 869             p_demux->info.i_seekpoint = 0;
 870         }
 871
 872         /* TODO: re-add angles */
 873
 874
 875         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 876         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 877
 878 #define audio_control \
 879     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 880
 881         /* Audio ES, in the order they appear in the .ifo */
 882         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 883         {
 884             int i_position = 0;
 885             uint16_t i_id;
 886
 887             //IfoPrintAudio( p_demux, i );
 888
 889             /* Audio channel is active if first byte is 0x80 */
 890             if( audio_control & 0x8000 )
 891             {
 892                 i_position = ( audio_control & 0x7F00 ) >> 8;
 893
 894                 msg_Dbg( p_demux, "audio position  %d", i_position );
 895                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 896                 {
 897                 case 0x00: /* A52 */
 898                     i_id = (0x80 + i_position) | 0xbd00;
 899                     break;
 900                 case 0x02:
 901                 case 0x03: /* MPEG audio */
 902                     i_id = 0xc000 + i_position;
 903                     break;
 904                 case 0x04: /* LPCM */
 905                     i_id = (0xa0 + i_position) | 0xbd00;
 906                     break;
 907                 case 0x06: /* DTS */
 908                     i_id = (0x88 + i_position) | 0xbd00;
 909                     break;
 910                 default:
 911                     i_id = 0;
 912                     msg_Err( p_demux, "unknown audio type %.2x",
 913                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 914                 }
 915
 916                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 917                        vts_audio_attr[i - 1].lang_code );
 918             }
 919         }
 920 #undef audio_control
 921
 922 #define spu_palette \
 923     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 924
 925         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 926
 927 #define spu_control \
 928     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 929
 930         /* Sub Picture ES */
 931         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 932         {
 933             int i_position = 0;
 934             uint16_t i_id;
 935
 936             //IfoPrintSpu( p_sys, i );
 937             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 938
 939             if( spu_control & 0x80000000 )
 940             {
 941                 /*  there are several streams for one spu */
 942                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 943                 {
 944                     /* 16:9 */
 945                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 946                     {
 947                     case 1: /* letterbox */
 948                         i_position = spu_control & 0xff;
 949                         break;
 950                     case 2: /* pan&scan */
 951                         i_position = ( spu_control >> 8 ) & 0xff;
 952                         break;
 953                     default: /* widescreen */
 954                         i_position = ( spu_control >> 16 ) & 0xff;
 955                         break;
 956                     }
 957                 }
 958                 else
 959                 {
 960                     /* 4:3 */
 961                     i_position = ( spu_control >> 24 ) & 0x7F;
 962                 }
 963
 964                 i_id = (0x20 + i_position) | 0xbd00;
 965
 966                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 967                        vts_subp_attr[i - 1].lang_code );
 968             }
 969         }
 970 #undef spu_control
 971
 972     }
 973     else if( i_title != -1 && i_title != p_sys->i_title )
 974
 975     {
 976         return VLC_EGENERIC; /* Couldn't set title */
 977     }
 978
 979     /*
 980      * Chapter selection
 981      */
 982
 983     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 984     {
 985         pgc_id = p_vts->vts_ptt_srpt->title[
 986                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
 987         pgn = p_vts->vts_ptt_srpt->title[
 988                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
 989
 990         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 991
 992         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 993         p_sys->i_chapter = i_chapter;
 994         DvdReadFindCell( p_demux );
 995
 996         p_sys->i_title_offset = 0;
 997         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
 998         {
 999             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1000                 p_pgc->cell_playback[i].first_sector + 1;
1001         }
1002
1003         p_sys->i_pack_len = 0;
1004         p_sys->i_next_vobu = p_sys->i_cur_block =
1005             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1006
1007         if( p_demux->info.i_seekpoint != i_chapter )
1008         {
1009             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1010             p_demux->info.i_seekpoint = i_chapter;
1011         }
1012     }
1013     else if( i_chapter != -1 )
1014
1015     {
1016         return VLC_EGENERIC; /* Couldn't set chapter */
1017     }
1018
1019 #undef p_pgc
1020 #undef p_vts
1021 #undef p_vmg
1022
1023     return VLC_SUCCESS;
1024 }
1025
1026 /*****************************************************************************
1027  * DvdReadSeek : Goes to a given position on the stream.
1028  *****************************************************************************
1029  * This one is used by the input and translate chronological position from
1030  * input to logical position on the device.
1031  *****************************************************************************/
1032 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1033 {
1034     demux_sys_t *p_sys = p_demux->p_sys;
1035     int i_chapter = 0;
1036     int i_cell = 0;
1037     int i_vobu = 0;
1038     int i_sub_cell = 0;
1039     int i_block;
1040
1041 #define p_pgc p_sys->p_cur_pgc
1042 #define p_vts p_sys->p_vts_file
1043
1044     /* Find cell */
1045     i_block = i_block_offset;
1046     for( i_cell = p_sys->i_title_start_cell;
1047          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1048     {
1049         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1050             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1051
1052         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1053             p_pgc->cell_playback[i_cell].first_sector + 1);
1054     }
1055     if( i_cell > p_sys->i_title_end_cell )
1056     {
1057         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1058         return;
1059     }
1060     i_block += p_pgc->cell_playback[i_cell].first_sector;
1061     p_sys->i_title_offset = i_block_offset;
1062
1063     /* Find chapter */
1064     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1065     {
1066         int pgc_id, pgn, i_tmp;
1067
1068         pgc_id = p_vts->vts_ptt_srpt->title[
1069                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1070         pgn = p_vts->vts_ptt_srpt->title[
1071                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1072
1073         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1074
1075         if( i_tmp > i_cell ) break;
1076     }
1077
1078     if( i_chapter < p_sys->i_chapters &&
1079         p_demux->info.i_seekpoint != i_chapter )
1080     {
1081         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1082         p_demux->info.i_seekpoint = i_chapter;
1083     }
1084
1085     /* Find vobu */
1086     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1087     {
1088         i_vobu++;
1089     }
1090
1091     /* Find sub_cell */
1092     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1093            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1094     {
1095         i_sub_cell++;
1096     }
1097
1098 #if 1
1099     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1100              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1101              i_cell, i_sub_cell, i_chapter, i_vobu,
1102              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1103              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1104              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1105 #endif
1106
1107     p_sys->i_cur_block = i_block;
1108     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1109     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1110     p_sys->i_cur_cell = i_cell;
1111     p_sys->i_chapter = i_chapter;
1112     DvdReadFindCell( p_demux );
1113
1114 #undef p_vts
1115 #undef p_pgc
1116
1117     return;
1118 }
1119
1120 /*****************************************************************************
1121  * DvdReadHandleDSI
1122  *****************************************************************************/
1123 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1124 {
1125     demux_sys_t *p_sys = p_demux->p_sys;
1126
1127     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1128
1129     /*
1130      * Determine where we go next.  These values are the ones we mostly
1131      * care about.
1132      */
1133     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1134     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1135
1136     /*
1137      * Store the timecodes so we can get the current time
1138      */
1139     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1140     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1141
1142     /*
1143      * If we're not at the end of this cell, we can determine the next
1144      * VOBU to display using the VOBU_SRI information section of the
1145      * DSI.  Using this value correctly follows the current angle,
1146      * avoiding the doubled scenes in The Matrix, and makes our life
1147      * really happy.
1148      */
1149
1150     p_sys->i_next_vobu = p_sys->i_cur_block +
1151         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1152
1153     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1154         && p_sys->i_angle > 1 )
1155     {
1156         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1157         {
1158         case 0x4:
1159             /* Interleaved unit with no angle */
1160             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1161             {
1162                 p_sys->i_next_vobu = p_sys->i_cur_block +
1163                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1164                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1165             }
1166             else
1167             {
1168                 p_sys->i_next_vobu = p_sys->i_cur_block +
1169                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1170             }
1171             break;
1172         case 0x5:
1173             /* vobu is end of ilvu */
1174             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1175             {
1176                 p_sys->i_next_vobu = p_sys->i_cur_block +
1177                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1178                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1179
1180                 break;
1181             }
1182         case 0x6:
1183             /* vobu is beginning of ilvu */
1184         case 0x9:
1185             /* next scr is 0 */
1186         case 0xa:
1187             /* entering interleaved section */
1188         case 0x8:
1189             /* non interleaved cells in interleaved section */
1190         default:
1191             p_sys->i_next_vobu = p_sys->i_cur_block +
1192                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1193             break;
1194         }
1195     }
1196     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1197     {
1198         p_sys->i_cur_cell = p_sys->i_next_cell;
1199
1200         /* End of title */
1201         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1202
1203         DvdReadFindCell( p_demux );
1204
1205         p_sys->i_next_vobu =
1206             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1207
1208         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 );
1209     }
1210
1211
1212 #if 0
1213     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1214              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1215              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1216              p_sys->dsi_pack.dsi_gi.vobu_ea,
1217              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1218              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1219              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1220
1221     msg_Dbg( p_demux, "cell duration: %lld",
1222              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1223
1224     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1225              p_sys->dsi_pack.sml_pbi.category,
1226              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1227              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1228              p_sys->dsi_pack.sml_pbi.size );
1229
1230     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1231              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1232              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1233              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1234 #endif
1235 }
1236
1237 /*****************************************************************************
1238  * DvdReadFindCell
1239  *****************************************************************************/
1240 static void DvdReadFindCell( demux_t *p_demux )
1241 {
1242     demux_sys_t *p_sys = p_demux->p_sys;
1243
1244     pgc_t *p_pgc;
1245     int   pgc_id, pgn;
1246     int   i = 0;
1247
1248 #define cell p_sys->p_cur_pgc->cell_playback
1249
1250     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1251     {
1252         p_sys->i_cur_cell += p_sys->i_angle - 1;
1253
1254         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1255         {
1256             i++;
1257         }
1258         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1259     }
1260     else
1261     {
1262         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1263     }
1264
1265 #undef cell
1266
1267     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1268
1269     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1270                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1271     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1272               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1273     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1274
1275     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1276     {
1277         p_sys->i_chapter++;
1278
1279         if( p_sys->i_chapter < p_sys->i_chapters &&
1280             p_demux->info.i_seekpoint != p_sys->i_chapter )
1281         {
1282             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1283             p_demux->info.i_seekpoint = p_sys->i_chapter;
1284         }
1285     }
1286 }
1287
1288 /*****************************************************************************
1289  * DemuxTitles: get the titles/chapters structure
1290  *****************************************************************************/
1291 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1292 {
1293     demux_sys_t *p_sys = p_demux->p_sys;
1294     input_title_t *t;
1295     seekpoint_t *s;
1296     int32_t i_titles;
1297     int i;
1298
1299     /* Find out number of titles/chapters */
1300 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1301
1302     i_titles = tt_srpt->nr_of_srpts;
1303     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1304
1305     for( i = 0; i < i_titles; i++ )
1306     {
1307         int32_t i_chapters = 0;
1308         int j;
1309
1310         i_chapters = tt_srpt->title[i].nr_of_ptts;
1311         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1312
1313         t = vlc_input_title_New();
1314
1315         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1316         {
1317             s = vlc_seekpoint_New();
1318             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1319         }
1320
1321         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1322     }
1323
1324 #undef tt_srpt
1325 }