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

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