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