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 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdio.h>
  29 #include <stdlib.h>                                      /* malloc(), free() */
  30 #include <string.h>                                              /* strdup() */
  31
  32 #include <vlc/vlc.h>
  33 #include <vlc/input.h>
  34
  35 #include "iso_lang.h"
  36
  37 #include "../demux/ps.h"
  38
  39 #ifdef HAVE_UNISTD_H
  40 #   include <unistd.h>
  41 #endif
  42
  43 #include <fcntl.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <string.h>
  47
  48 #include <dvdread/dvd_reader.h>
  49 #include <dvdread/ifo_types.h>
  50 #include <dvdread/ifo_read.h>
  51 #include <dvdread/nav_read.h>
  52 #include <dvdread/nav_print.h>
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57 #define ANGLE_TEXT N_("DVD angle")
  58 #define ANGLE_LONGTEXT N_( \
  59     "Allows you to select the default DVD angle." )
  60
  61 #define CACHING_TEXT N_("Caching value in ms")
  62 #define CACHING_LONGTEXT N_( \
  63     "Allows you to modify the default caching value for DVDread streams. " \
  64     "This value should be set in millisecond units." )
  65
  66 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
  67 #define CSSMETHOD_LONGTEXT N_( \
  68     "Set the method used by libdvdcss for key decryption.\n" \
  69     "title: decrypted title key is guessed from the encrypted sectors of " \
  70            "the stream. Thus it should work with a file as well as the " \
  71            "DVD device. But it sometimes takes much time to decrypt a title " \
  72            "key and may even fail. With this method, the key is only checked "\
  73            "at the beginning of each title, so it won't work if the key " \
  74            "changes in the middle of a title.\n" \
  75     "disc: the disc key is first cracked, then all title keys can be " \
  76            "decrypted instantly, which allows us to check them often.\n" \
  77     "key: the same as \"disc\" if you don't have a file with player keys " \
  78            "at compilation time. If you do, the decryption of the disc key " \
  79            "will be faster with this method. It is the one that was used by " \
  80            "libcss.\n" \
  81     "The default method is: key.")
  82
  83 static char *psz_css_list[] = { "title", "disc", "key" };
  84 static char *psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
  85
  86 static int  Open ( vlc_object_t * );
  87 static void Close( vlc_object_t * );
  88
  89 vlc_module_begin();
  90     set_shortname( _("DVD without menus") );
  91     set_description( _("DVDRead Input (DVD without menu support)") );
  92     set_category( CAT_INPUT );
  93     set_subcategory( SUBCAT_INPUT_ACCESS );
  94     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
  95         ANGLE_LONGTEXT, VLC_FALSE );
  96     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
  97         CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
  98     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
  99                 CSSMETHOD_LONGTEXT, VLC_TRUE );
 100         change_string_list( psz_css_list, psz_css_list_text, 0 );
 101     set_capability( "access_demux", 0 );
 102     add_shortcut( "dvd" );
 103     add_shortcut( "dvdread" );
 104     add_shortcut( "dvdsimple" );
 105     set_callbacks( Open, Close );
 106 vlc_module_end();
 107
 108 /* how many blocks DVDRead will read in each loop */
 109 #define DVD_BLOCK_READ_ONCE 4
 110
 111 /*****************************************************************************
 112  * Local prototypes
 113  *****************************************************************************/
 114
 115 struct demux_sys_t
 116 {
 117     /* DVDRead state */
 118     dvd_reader_t *p_dvdread;
 119     dvd_file_t   *p_title;
 120
 121     ifo_handle_t *p_vmg_file;
 122     ifo_handle_t *p_vts_file;
 123
 124     int i_title;
 125     int i_chapter, i_chapters;
 126     int i_angle, i_angles;
 127
 128     tt_srpt_t    *p_tt_srpt;
 129     pgc_t        *p_cur_pgc;
 130     dsi_t        dsi_pack;
 131     int          i_ttn;
 132
 133     int i_pack_len;
 134     int i_cur_block;
 135     int i_next_vobu;
 136
 137     /* Current title start/end blocks */
 138     int i_title_start_block;
 139     int i_title_end_block;
 140     int i_title_blocks;
 141     int i_title_offset;
 142     mtime_t i_title_cur_time;
 143
 144     int i_title_start_cell;
 145     int i_title_end_cell;
 146     int i_cur_cell;
 147     int i_next_cell;
 148     mtime_t i_cell_cur_time;
 149     mtime_t i_cell_duration;
 150
 151     /* Track */
 152     ps_track_t    tk[PS_TK_COUNT];
 153     int           i_mux_rate;
 154
 155     int           i_titles;
 156     input_title_t **titles;
 157
 158     /* Video */
 159     int i_aspect;
 160
 161     /* SPU */
 162     uint32_t clut[16];
 163 };
 164
 165 static int Control   ( demux_t *, int, va_list );
 166 static int Demux     ( demux_t * );
 167 static int DemuxBlock( demux_t *, uint8_t *, int );
 168
 169 static void DemuxTitles( demux_t *, int * );
 170 static void ESNew( demux_t *, int, int );
 171
 172 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 173 static void DvdReadSeek     ( demux_t *, int );
 174 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 175 static void DvdReadFindCell ( demux_t * );
 176
 177 /*****************************************************************************
 178  * Open:
 179  *****************************************************************************/
 180 static int Open( vlc_object_t *p_this )
 181 {
 182     demux_t      *p_demux = (demux_t*)p_this;
 183     demux_sys_t  *p_sys;
 184     char         *psz_name;
 185     char         *psz_dvdcss_env;
 186     dvd_reader_t *p_dvdread;
 187     ifo_handle_t *p_vmg_file;
 188     vlc_value_t  val;
 189
 190     if( !p_demux->psz_path || !*p_demux->psz_path )
 191     {
 192         /* Only when selected */
 193         if( !p_this->b_force ) return VLC_EGENERIC;
 194
 195         psz_name = var_CreateGetString( p_this, "dvd" );
 196         if( !psz_name || !*psz_name )
 197         {
 198             if( psz_name ) free( psz_name );
 199             return VLC_EGENERIC;
 200         }
 201     }
 202     else psz_name = strdup( p_demux->psz_path );
 203
 204 #ifdef WIN32
 205     if( psz_name[0] && psz_name[1] == ':' &&
 206         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 207 #endif
 208
 209     /* Override environment variable DVDCSS_METHOD with config option
 210      * (FIXME: this creates a small memory leak) */
 211     psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
 212     if( psz_dvdcss_env && *psz_dvdcss_env )
 213     {
 214         char *psz_env;
 215
 216         psz_env = malloc( strlen("DVDCSS_METHOD=") +
 217                           strlen( psz_dvdcss_env ) + 1 );
 218         if( !psz_env )
 219         {
 220             free( psz_dvdcss_env );
 221             return VLC_ENOMEM;
 222         }
 223
 224         sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
 225
 226         putenv( psz_env );
 227     }
 228     if( psz_dvdcss_env ) free( psz_dvdcss_env );
 229
 230     /* Open dvdread */
 231     if( !(p_dvdread = DVDOpen( psz_name )) )
 232     {
 233         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 234         free( psz_name );
 235         return VLC_EGENERIC;
 236     }
 237     free( psz_name );
 238
 239     /* Ifo allocation & initialisation */
 240     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 241     {
 242         msg_Warn( p_demux, "cannot open VMG info" );
 243         return VLC_EGENERIC;
 244     }
 245     msg_Dbg( p_demux, "VMG opened" );
 246
 247     /* Fill p_demux field */
 248     p_demux->pf_demux = Demux;
 249     p_demux->pf_control = Control;
 250     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
 251     memset( p_sys, 0, sizeof( demux_sys_t ) );
 252
 253     ps_track_init( p_sys->tk );
 254     p_sys->i_aspect = -1;
 255     p_sys->i_mux_rate = 0;
 256     p_sys->i_title_cur_time = (mtime_t) 0;
 257     p_sys->i_cell_cur_time = (mtime_t) 0;
 258     p_sys->i_cell_duration = (mtime_t) 0;
 259
 260     p_sys->p_dvdread = p_dvdread;
 261     p_sys->p_vmg_file = p_vmg_file;
 262     p_sys->p_title = NULL;
 263     p_sys->p_vts_file = NULL;
 264
 265     p_sys->i_title = p_sys->i_chapter = -1;
 266
 267     var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 268     var_Get( p_demux, "dvdread-angle", &val );
 269     p_sys->i_angle = val.i_int > 0 ? val.i_int : 1;
 270
 271     DemuxTitles( p_demux, &p_sys->i_angle );
 272     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 273     {
 274         Close( p_this );
 275         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 276                  p_sys->i_angle );
 277         return VLC_EGENERIC;
 278     }
 279
 280     /* Update default_pts to a suitable value for dvdread access */
 281     var_Create( p_demux, "dvdread-caching",
 282                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 283
 284     return VLC_SUCCESS;
 285 }
 286
 287 /*****************************************************************************
 288  * Close:
 289  *****************************************************************************/
 290 static void Close( vlc_object_t *p_this )
 291 {
 292     demux_t     *p_demux = (demux_t*)p_this;
 293     demux_sys_t *p_sys = p_demux->p_sys;
 294     int i;
 295
 296     for( i = 0; i < PS_TK_COUNT; i++ )
 297     {
 298         ps_track_t *tk = &p_sys->tk[i];
 299         if( tk->b_seen )
 300         {
 301             es_format_Clean( &tk->fmt );
 302             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 303         }
 304     }
 305
 306     /* Close libdvdread */
 307     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 308     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 309     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 310     DVDClose( p_sys->p_dvdread );
 311
 312     free( p_sys );
 313 }
 314
 315 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 316 {
 317 /* Macro to convert Binary Coded Decimal to Decimal */
 318 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 319
 320     double f_fps, f_ms;
 321     int64_t i_micro_second = 0;
 322
 323     if (still_time == 0 || still_time == 0xFF)
 324     {
 325         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 326         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 327         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 328
 329         switch((dtime->frame_u & 0xc0) >> 6)
 330         {
 331         case 1:
 332             f_fps = 25.0;
 333             break;
 334         case 3:
 335             f_fps = 29.97;
 336             break;
 337         default:
 338             f_fps = 2500.0;
 339             break;
 340         }
 341         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 342         i_micro_second += (int64_t)(f_ms * 1000.0);
 343     }
 344     else
 345     {
 346         i_micro_second = still_time;
 347         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 348     }
 349
 350     return i_micro_second;
 351 }
 352
 353 /*****************************************************************************
 354  * Control:
 355  *****************************************************************************/
 356 static int Control( demux_t *p_demux, int i_query, va_list args )
 357 {
 358     demux_sys_t *p_sys = p_demux->p_sys;
 359     double f, *pf;
 360     vlc_bool_t *pb;
 361     int64_t *pi64;
 362     input_title_t ***ppp_title;
 363     int *pi_int;
 364     int i;
 365
 366     switch( i_query )
 367     {
 368         case DEMUX_GET_POSITION:
 369         {
 370             pf = (double*) va_arg( args, double* );
 371
 372             if( p_sys->i_title_blocks > 0 )
 373                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 374             else
 375                 *pf = 0.0;
 376
 377             return VLC_SUCCESS;
 378         }
 379         case DEMUX_SET_POSITION:
 380         {
 381             f = (double)va_arg( args, double );
 382
 383             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 384
 385             return VLC_SUCCESS;
 386         }
 387         case DEMUX_GET_TIME:
 388             pi64 = (int64_t*)va_arg( args, int64_t * );
 389             if( p_sys->i_title_cur_time > 0 )
 390             {
 391                 *pi64 = (int64_t)p_sys->i_title_cur_time;
 392                 return VLC_SUCCESS;
 393             }
 394             *pi64 = 0;
 395             return VLC_EGENERIC;
 396
 397         case DEMUX_GET_LENGTH:
 398             pi64 = (int64_t*)va_arg( args, int64_t * );
 399             if (p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles)
 400             {
 401                 *pi64 = dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 402                 return VLC_SUCCESS;
 403             }
 404             *pi64 = 0;
 405             return VLC_EGENERIC;
 406
 407         /* Special for access_demux */
 408         case DEMUX_CAN_PAUSE:
 409         case DEMUX_CAN_CONTROL_PACE:
 410             /* TODO */
 411             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 412             *pb = VLC_TRUE;
 413             return VLC_SUCCESS;
 414
 415         case DEMUX_SET_PAUSE_STATE:
 416             return VLC_SUCCESS;
 417
 418         case DEMUX_GET_TITLE_INFO:
 419             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 420             pi_int    = (int*)va_arg( args, int* );
 421             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 422             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 423
 424             /* Duplicate title infos */
 425             *pi_int = p_sys->i_titles;
 426             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 427             for( i = 0; i < p_sys->i_titles; i++ )
 428             {
 429                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 430             }
 431             return VLC_SUCCESS;
 432
 433         case DEMUX_SET_TITLE:
 434             i = (int)va_arg( args, int );
 435             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 436             {
 437                 msg_Warn( p_demux, "cannot set title/chapter" );
 438                 return VLC_EGENERIC;
 439             }
 440             p_demux->info.i_update |=
 441                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 442             p_demux->info.i_title = i;
 443             p_demux->info.i_seekpoint = 0;
 444             return VLC_SUCCESS;
 445
 446         case DEMUX_SET_SEEKPOINT:
 447             i = (int)va_arg( args, int );
 448             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 449             {
 450                 msg_Warn( p_demux, "cannot set title/chapter" );
 451                 return VLC_EGENERIC;
 452             }
 453             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 454             p_demux->info.i_seekpoint = i;
 455             return VLC_SUCCESS;
 456
 457         case DEMUX_GET_PTS_DELAY:
 458             pi64 = (int64_t*)va_arg( args, int64_t * );
 459             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 460             return VLC_SUCCESS;
 461
 462         /* TODO implement others */
 463         default:
 464             return VLC_EGENERIC;
 465     }
 466 }
 467
 468 /*****************************************************************************
 469  * Demux:
 470  *****************************************************************************/
 471 static int Demux( demux_t *p_demux )
 472 {
 473     demux_sys_t *p_sys = p_demux->p_sys;
 474
 475     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 476     int i_blocks_once, i_read;
 477     int i;
 478
 479     /*
 480      * Playback by cell in this pgc, starting at the cell for our chapter.
 481      */
 482
 483     /*
 484      * Check end of pack, and select the following one
 485      */
 486     if( !p_sys->i_pack_len )
 487     {
 488         /* Read NAV packet */
 489         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 490                            1, p_buffer ) != 1 )
 491         {
 492             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 493             return -1;
 494         }
 495
 496         /* Basic check to be sure we don't have a empty title
 497          * go to next title if so */
 498         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 499
 500         /* Parse the contained dsi packet */
 501         DvdReadHandleDSI( p_demux, p_buffer );
 502
 503         /* End of title */
 504         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 505         {
 506             if( p_sys->i_title + 1 >= p_sys->i_titles )
 507             {
 508                 return 0; /* EOF */
 509             }
 510
 511             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 512         }
 513
 514         if( p_sys->i_pack_len >= 1024 )
 515         {
 516             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 517                      "This shouldn't happen!", p_sys->i_pack_len );
 518             return 0; /* EOF */
 519         }
 520
 521         /* FIXME: Ugly kludge: we send the pack block to the input for it
 522          * sometimes has a zero scr and restart the sync */
 523         p_sys->i_cur_block++;
 524         p_sys->i_title_offset++;
 525
 526         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 527     }
 528
 529     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 530     {
 531         if( p_sys->i_title + 1 >= p_sys->i_titles )
 532         {
 533             return 0; /* EOF */
 534         }
 535
 536         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 537     }
 538
 539     /*
 540      * Read actual data
 541      */
 542     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 543     p_sys->i_pack_len -= i_blocks_once;
 544
 545     /* Reads from DVD */
 546     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 547                             i_blocks_once, p_buffer );
 548     if( i_read != i_blocks_once )
 549     {
 550         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 551                  i_read, i_blocks_once, p_sys->i_cur_block );
 552         return -1;
 553     }
 554
 555     p_sys->i_cur_block += i_read;
 556     p_sys->i_title_offset += i_read;
 557
 558 #if 0
 559     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 560              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 561 #endif
 562
 563     for( i = 0; i < i_read; i++ )
 564     {
 565         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 566                     DVD_VIDEO_LB_LEN );
 567     }
 568
 569 #undef p_pgc
 570
 571     return 1;
 572 }
 573
 574 /*****************************************************************************
 575  * DemuxBlock: demux a given block
 576  *****************************************************************************/
 577 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 578 {
 579     demux_sys_t *p_sys = p_demux->p_sys;
 580     uint8_t     *p = pkt;
 581
 582     while( p < &pkt[i_pkt] )
 583     {
 584         int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
 585         block_t *p_pkt;
 586         if( i_size <= 0 )
 587         {
 588             break;
 589         }
 590
 591         /* Create a block */
 592         p_pkt = block_New( p_demux, i_size );
 593         memcpy( p_pkt->p_buffer, p, i_size);
 594
 595         /* Parse it and send it */
 596         switch( 0x100 | p[3] )
 597         {
 598         case 0x1b9:
 599         case 0x1bb:
 600         case 0x1bc:
 601
 602 #ifdef DVDREAD_DEBUG
 603             if( p[3] == 0xbc )
 604             {
 605                 msg_Warn( p_demux, "received a PSM packet" );
 606             }
 607             else if( p[3] == 0xbb )
 608             {
 609                 msg_Warn( p_demux, "received a SYSTEM packet" );
 610             }
 611 #endif
 612             block_Release( p_pkt );
 613             break;
 614
 615         case 0x1ba:
 616         {
 617             int64_t i_scr;
 618             int i_mux_rate;
 619             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 620             {
 621                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 622 /*                if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;*/
 623             }
 624             block_Release( p_pkt );
 625             break;
 626         }
 627         default:
 628         {
 629             int i_id = ps_pkt_id( p_pkt );
 630             if( i_id >= 0xc0 )
 631             {
 632                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 633
 634                 if( !tk->b_seen )
 635                 {
 636                     ESNew( p_demux, i_id, 0 );
 637                 }
 638                 if( tk->b_seen && tk->es &&
 639                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 640                 {
 641                     es_out_Send( p_demux->out, tk->es, p_pkt );
 642                 }
 643                 else
 644                 {
 645                     block_Release( p_pkt );
 646                 }
 647             }
 648             else
 649             {
 650                 block_Release( p_pkt );
 651             }
 652             break;
 653         }
 654         }
 655
 656         p += i_size;
 657     }
 658
 659     return VLC_SUCCESS;
 660 }
 661
 662 /*****************************************************************************
 663  * ESNew: register a new elementary stream
 664  *****************************************************************************/
 665 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 666 {
 667     demux_sys_t *p_sys = p_demux->p_sys;
 668     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 669     char psz_language[3];
 670
 671     if( tk->b_seen ) return;
 672
 673     if( ps_track_fill( tk, 0, i_id ) )
 674     {
 675         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 676         return;
 677     }
 678
 679     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 680     if( i_lang && i_lang != 0xffff )
 681     {
 682         psz_language[0] = (i_lang >> 8)&0xff;
 683         psz_language[1] = (i_lang     )&0xff;
 684     }
 685
 686     /* Add a new ES */
 687     if( tk->fmt.i_cat == VIDEO_ES )
 688     {
 689         if( p_sys->i_aspect >= 0 )
 690         {
 691             tk->fmt.video.i_aspect = p_sys->i_aspect;
 692         }
 693     }
 694     else if( tk->fmt.i_cat == AUDIO_ES )
 695     {
 696         int i_audio = -1;
 697         /* find the audio number PLEASE find another way */
 698         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 699         {
 700             i_audio = i_id&0x07;
 701         }
 702         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 703         {
 704             i_audio = i_id&0xf;
 705         }
 706         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 707         {
 708             i_audio = i_id&0x1f;
 709         }
 710         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 711         {
 712             i_audio = i_id&0x1f;
 713         }
 714
 715         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 716     }
 717     else if( tk->fmt.i_cat == SPU_ES )
 718     {
 719         /* Palette */
 720         tk->fmt.subs.spu.palette[0] = 0xBeef;
 721         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 722                 16 * sizeof( uint32_t ) );
 723
 724         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 725     }
 726
 727     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 728     tk->b_seen = VLC_TRUE;
 729 }
 730
 731 /*****************************************************************************
 732  * DvdReadSetArea: initialize input data for title x, chapter y.
 733  * It should be called for each user navigation request.
 734  *****************************************************************************
 735  * Take care that i_title and i_chapter start from 0.
 736  *****************************************************************************/
 737 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 738                            int i_angle )
 739 {
 740     demux_sys_t *p_sys = p_demux->p_sys;
 741     int pgc_id = 0, pgn = 0;
 742     int i;
 743
 744 #define p_pgc p_sys->p_cur_pgc
 745 #define p_vmg p_sys->p_vmg_file
 746 #define p_vts p_sys->p_vts_file
 747
 748     if( i_title >= 0 && i_title < p_sys->i_titles &&
 749         i_title != p_sys->i_title )
 750     {
 751         int i_start_cell, i_end_cell;
 752
 753         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 754         if( p_vts != NULL ) ifoClose( p_vts );
 755         p_sys->i_title = i_title;
 756
 757         /*
 758          *  We have to load all title information
 759          */
 760         msg_Dbg( p_demux, "open VTS %d, for title %d",
 761                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 762
 763         /* Ifo vts */
 764         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 765                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 766         {
 767             msg_Err( p_demux, "fatal error in vts ifo" );
 768             return VLC_EGENERIC;
 769         }
 770
 771         /* Title position inside the selected vts */
 772         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 773
 774         /* Find title start/end */
 775         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 776         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 777         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 778
 779         p_sys->i_title_start_cell =
 780             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 781         p_sys->i_title_start_block =
 782             p_pgc->cell_playback[i_start_cell].first_sector;
 783
 784         p_sys->i_title_end_cell =
 785             i_end_cell = p_pgc->nr_of_cells - 1;
 786         p_sys->i_title_end_block =
 787             p_pgc->cell_playback[i_end_cell].last_sector;
 788
 789         p_sys->i_title_offset = 0;
 790
 791         p_sys->i_title_blocks = 0;
 792         for( i = i_start_cell; i <= i_end_cell; i++ )
 793         {
 794             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 795                 p_pgc->cell_playback[i].first_sector + 1;
 796         }
 797
 798         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 799                  "start %d end %d blocks: %d",
 800                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 801                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 802                  p_sys->i_title_blocks );
 803
 804         /*
 805          * Set properties for current chapter
 806          */
 807         p_sys->i_chapter = 0;
 808         p_sys->i_chapters =
 809             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 810
 811         pgc_id = p_vts->vts_ptt_srpt->title[
 812                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 813         pgn = p_vts->vts_ptt_srpt->title[
 814                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 815
 816         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 817         p_sys->i_pack_len = 0;
 818         p_sys->i_next_cell =
 819             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 820         DvdReadFindCell( p_demux );
 821
 822         p_sys->i_next_vobu = p_sys->i_cur_block =
 823             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 824
 825         /*
 826          * Angle management
 827          */
 828         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 829         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 830
 831         /*
 832          * We've got enough info, time to open the title set data.
 833          */
 834         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 835             p_vmg->tt_srpt->title[i_title].title_set_nr,
 836             DVD_READ_TITLE_VOBS ) ) )
 837         {
 838             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 839                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 840             return VLC_EGENERIC;
 841         }
 842
 843         //IfoPrintTitle( p_demux );
 844
 845         /*
 846          * Destroy obsolete ES by reinitializing program 0
 847          * and find all ES in title with ifo data
 848          */
 849         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 850
 851         for( i = 0; i < PS_TK_COUNT; i++ )
 852         {
 853             ps_track_t *tk = &p_sys->tk[i];
 854             if( tk->b_seen )
 855             {
 856                 es_format_Clean( &tk->fmt );
 857                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 858             }
 859             tk->b_seen = VLC_FALSE;
 860         }
 861
 862         if( p_demux->info.i_title != i_title )
 863         {
 864             p_demux->info.i_update |=
 865                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 866             p_demux->info.i_title = i_title;
 867             p_demux->info.i_seekpoint = 0;
 868         }
 869
 870         /* TODO: re-add angles */
 871
 872
 873         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 874         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 875
 876 #define audio_control \
 877     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 878
 879         /* Audio ES, in the order they appear in the .ifo */
 880         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 881         {
 882             int i_position = 0;
 883             uint16_t i_id;
 884
 885             //IfoPrintAudio( p_demux, i );
 886
 887             /* Audio channel is active if first byte is 0x80 */
 888             if( audio_control & 0x8000 )
 889             {
 890                 i_position = ( audio_control & 0x7F00 ) >> 8;
 891
 892                 msg_Dbg( p_demux, "audio position  %d", i_position );
 893                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 894                 {
 895                 case 0x00: /* A52 */
 896                     i_id = (0x80 + i_position) | 0xbd00;
 897                     break;
 898                 case 0x02:
 899                 case 0x03: /* MPEG audio */
 900                     i_id = 0xc000 + i_position;
 901                     break;
 902                 case 0x04: /* LPCM */
 903                     i_id = (0xa0 + i_position) | 0xbd00;
 904                     break;
 905                 case 0x06: /* DTS */
 906                     i_id = (0x88 + i_position) | 0xbd00;
 907                     break;
 908                 default:
 909                     i_id = 0;
 910                     msg_Err( p_demux, "unknown audio type %.2x",
 911                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 912                 }
 913
 914                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 915                        vts_audio_attr[i - 1].lang_code );
 916             }
 917         }
 918 #undef audio_control
 919
 920 #define spu_palette \
 921     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 922
 923         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 924
 925 #define spu_control \
 926     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 927
 928         /* Sub Picture ES */
 929         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 930         {
 931             int i_position = 0;
 932             uint16_t i_id;
 933
 934             //IfoPrintSpu( p_sys, i );
 935             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 936
 937             if( spu_control & 0x80000000 )
 938             {
 939                 /*  there are several streams for one spu */
 940                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 941                 {
 942                     /* 16:9 */
 943                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 944                     {
 945                     case 1: /* letterbox */
 946                         i_position = spu_control & 0xff;
 947                         break;
 948                     case 2: /* pan&scan */
 949                         i_position = ( spu_control >> 8 ) & 0xff;
 950                         break;
 951                     default: /* widescreen */
 952                         i_position = ( spu_control >> 16 ) & 0xff;
 953                         break;
 954                     }
 955                 }
 956                 else
 957                 {
 958                     /* 4:3 */
 959                     i_position = ( spu_control >> 24 ) & 0x7F;
 960                 }
 961
 962                 i_id = (0x20 + i_position) | 0xbd00;
 963
 964                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 965                        vts_subp_attr[i - 1].lang_code );
 966             }
 967         }
 968 #undef spu_control
 969
 970     }
 971     else if( i_title != -1 && i_title != p_sys->i_title )
 972
 973     {
 974         return VLC_EGENERIC; /* Couldn't set title */
 975     }
 976
 977     /*
 978      * Chapter selection
 979      */
 980
 981     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 982     {
 983         pgc_id = p_vts->vts_ptt_srpt->title[
 984                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
 985         pgn = p_vts->vts_ptt_srpt->title[
 986                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
 987
 988         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 989
 990         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 991         p_sys->i_chapter = i_chapter;
 992         DvdReadFindCell( p_demux );
 993
 994         p_sys->i_title_offset = 0;
 995         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
 996         {
 997             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
 998                 p_pgc->cell_playback[i].first_sector + 1;
 999         }
1000
1001         p_sys->i_pack_len = 0;
1002         p_sys->i_next_vobu = p_sys->i_cur_block =
1003             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1004
1005         if( p_demux->info.i_seekpoint != i_chapter )
1006         {
1007             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1008             p_demux->info.i_seekpoint = i_chapter;
1009         }
1010     }
1011     else if( i_chapter != -1 )
1012
1013     {
1014         return VLC_EGENERIC; /* Couldn't set chapter */
1015     }
1016
1017 #undef p_pgc
1018 #undef p_vts
1019 #undef p_vmg
1020
1021     return VLC_SUCCESS;
1022 }
1023
1024 /*****************************************************************************
1025  * DvdReadSeek : Goes to a given position on the stream.
1026  *****************************************************************************
1027  * This one is used by the input and translate chronological position from
1028  * input to logical position on the device.
1029  *****************************************************************************/
1030 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1031 {
1032     demux_sys_t *p_sys = p_demux->p_sys;
1033     int i_chapter = 0;
1034     int i_cell = 0;
1035     int i_vobu = 0;
1036     int i_sub_cell = 0;
1037     int i_block;
1038
1039 #define p_pgc p_sys->p_cur_pgc
1040 #define p_vts p_sys->p_vts_file
1041
1042     /* Find cell */
1043     i_block = i_block_offset;
1044     for( i_cell = p_sys->i_title_start_cell;
1045          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1046     {
1047         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1048             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1049
1050         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1051             p_pgc->cell_playback[i_cell].first_sector + 1);
1052     }
1053     if( i_cell > p_sys->i_title_end_cell )
1054     {
1055         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1056         return;
1057     }
1058     i_block += p_pgc->cell_playback[i_cell].first_sector;
1059     p_sys->i_title_offset = i_block_offset;
1060
1061     /* Find chapter */
1062     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1063     {
1064         int pgc_id, pgn, i_tmp;
1065
1066         pgc_id = p_vts->vts_ptt_srpt->title[
1067                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1068         pgn = p_vts->vts_ptt_srpt->title[
1069                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1070
1071         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1072
1073         if( i_tmp > i_cell ) break;
1074     }
1075
1076     if( i_chapter < p_sys->i_chapters &&
1077         p_demux->info.i_seekpoint != i_chapter )
1078     {
1079         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1080         p_demux->info.i_seekpoint = i_chapter;
1081     }
1082
1083     /* Find vobu */
1084     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1085     {
1086         i_vobu++;
1087     }
1088
1089     /* Find sub_cell */
1090     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1091            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1092     {
1093         i_sub_cell++;
1094     }
1095
1096 #if 1
1097     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1098              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1099              i_cell, i_sub_cell, i_chapter, i_vobu,
1100              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1101              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1102              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1103 #endif
1104
1105     p_sys->i_cur_block = i_block;
1106     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1107     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1108     p_sys->i_cur_cell = i_cell;
1109     p_sys->i_chapter = i_chapter;
1110     DvdReadFindCell( p_demux );
1111
1112 #undef p_vts
1113 #undef p_pgc
1114
1115     return;
1116 }
1117
1118 /*****************************************************************************
1119  * DvdReadHandleDSI
1120  *****************************************************************************/
1121 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1122 {
1123     demux_sys_t *p_sys = p_demux->p_sys;
1124
1125     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1126
1127     /*
1128      * Determine where we go next.  These values are the ones we mostly
1129      * care about.
1130      */
1131     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1132     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1133
1134     /*
1135      * Store the timecodes so we can get the current time
1136      */
1137     p_sys->i_title_cur_time = (mtime_t) p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000;
1138     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1139
1140     /*
1141      * If we're not at the end of this cell, we can determine the next
1142      * VOBU to display using the VOBU_SRI information section of the
1143      * DSI.  Using this value correctly follows the current angle,
1144      * avoiding the doubled scenes in The Matrix, and makes our life
1145      * really happy.
1146      */
1147
1148     p_sys->i_next_vobu = p_sys->i_cur_block +
1149         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1150
1151     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1152         && p_sys->i_angle > 1 )
1153     {
1154         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1155         {
1156         case 0x4:
1157             /* Interleaved unit with no angle */
1158             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1159             {
1160                 p_sys->i_next_vobu = p_sys->i_cur_block +
1161                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1162                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1163             }
1164             else
1165             {
1166                 p_sys->i_next_vobu = p_sys->i_cur_block +
1167                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1168             }
1169             break;
1170         case 0x5:
1171             /* vobu is end of ilvu */
1172             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1173             {
1174                 p_sys->i_next_vobu = p_sys->i_cur_block +
1175                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1176                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1177
1178                 break;
1179             }
1180         case 0x6:
1181             /* vobu is beginning of ilvu */
1182         case 0x9:
1183             /* next scr is 0 */
1184         case 0xa:
1185             /* entering interleaved section */
1186         case 0x8:
1187             /* non interleaved cells in interleaved section */
1188         default:
1189             p_sys->i_next_vobu = p_sys->i_cur_block +
1190                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1191             break;
1192         }
1193     }
1194     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1195     {
1196         p_sys->i_cur_cell = p_sys->i_next_cell;
1197
1198         /* End of title */
1199         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1200
1201         DvdReadFindCell( p_demux );
1202
1203         p_sys->i_next_vobu =
1204             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1205
1206         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 );
1207     }
1208
1209
1210 #if 0
1211     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1212              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1213              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1214              p_sys->dsi_pack.dsi_gi.vobu_ea,
1215              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1216              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1217              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1218
1219     msg_Dbg( p_demux, "cell duration: %lld",
1220              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1221
1222     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1223              p_sys->dsi_pack.sml_pbi.category,
1224              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1225              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1226              p_sys->dsi_pack.sml_pbi.size );
1227
1228     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1229              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1230              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1231              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1232 #endif
1233 }
1234
1235 /*****************************************************************************
1236  * DvdReadFindCell
1237  *****************************************************************************/
1238 static void DvdReadFindCell( demux_t *p_demux )
1239 {
1240     demux_sys_t *p_sys = p_demux->p_sys;
1241
1242     pgc_t *p_pgc;
1243     int   pgc_id, pgn;
1244     int   i = 0;
1245
1246 #define cell p_sys->p_cur_pgc->cell_playback
1247
1248     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1249     {
1250         p_sys->i_cur_cell += p_sys->i_angle - 1;
1251
1252         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1253         {
1254             i++;
1255         }
1256         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1257     }
1258     else
1259     {
1260         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1261     }
1262
1263 #undef cell
1264
1265     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1266
1267     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1268                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1269     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1270               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1271     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1272
1273     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1274     {
1275         p_sys->i_chapter++;
1276
1277         if( p_sys->i_chapter < p_sys->i_chapters &&
1278             p_demux->info.i_seekpoint != p_sys->i_chapter )
1279         {
1280             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1281             p_demux->info.i_seekpoint = p_sys->i_chapter;
1282         }
1283     }
1284 }
1285
1286 /*****************************************************************************
1287  * DemuxTitles: get the titles/chapters structure
1288  *****************************************************************************/
1289 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1290 {
1291     demux_sys_t *p_sys = p_demux->p_sys;
1292     input_title_t *t;
1293     seekpoint_t *s;
1294     int32_t i_titles;
1295     int i;
1296
1297     /* Find out number of titles/chapters */
1298 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1299
1300     i_titles = tt_srpt->nr_of_srpts;
1301     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1302
1303     for( i = 0; i < i_titles; i++ )
1304     {
1305         int32_t i_chapters = 0;
1306         int j;
1307
1308         i_chapters = tt_srpt->title[i].nr_of_ptts;
1309         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1310
1311         t = vlc_input_title_New();
1312
1313         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1314         {
1315             s = vlc_seekpoint_New();
1316             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1317         }
1318
1319         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1320     }
1321
1322 #undef tt_srpt
1323 }