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
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc_input.h>
  35 #include <vlc_access.h>
  36
  37 #include <vlc_interface.h>
  38
  39 #include "iso_lang.h"
  40
  41 #include "../demux/ps.h"
  42
  43 #ifdef HAVE_UNISTD_H
  44 #   include <unistd.h>
  45 #endif
  46
  47 #include <fcntl.h>
  48 #include <sys/types.h>
  49 #include <sys/stat.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, false );
  99     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
 100         CACHING_TEXT, CACHING_LONGTEXT, true );
 101     add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
 102                 CSSMETHOD_LONGTEXT, 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     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, false, _("Playback failure"),
 239                         _("DVDRead could not open the 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     DEMUX_INIT_COMMON(); 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     bool *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_SEEK:
 414         case DEMUX_CAN_CONTROL_PACE:
 415             /* TODO */
 416             pb = (bool*)va_arg( args, bool * );
 417             *pb = true;
 418             return VLC_SUCCESS;
 419
 420         case DEMUX_SET_PAUSE_STATE:
 421             return VLC_SUCCESS;
 422
 423         case DEMUX_GET_TITLE_INFO:
 424             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 425             pi_int    = (int*)va_arg( args, int* );
 426             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 427             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 428
 429             /* Duplicate title infos */
 430             *pi_int = p_sys->i_titles;
 431             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 432             for( i = 0; i < p_sys->i_titles; i++ )
 433             {
 434                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 435             }
 436             return VLC_SUCCESS;
 437
 438         case DEMUX_SET_TITLE:
 439             i = (int)va_arg( args, int );
 440             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 441             {
 442                 msg_Warn( p_demux, "cannot set title/chapter" );
 443                 return VLC_EGENERIC;
 444             }
 445             p_demux->info.i_update |=
 446                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 447             p_demux->info.i_title = i;
 448             p_demux->info.i_seekpoint = 0;
 449             return VLC_SUCCESS;
 450
 451         case DEMUX_SET_SEEKPOINT:
 452             i = (int)va_arg( args, int );
 453             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 454             {
 455                 msg_Warn( p_demux, "cannot set title/chapter" );
 456                 return VLC_EGENERIC;
 457             }
 458             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 459             p_demux->info.i_seekpoint = i;
 460             return VLC_SUCCESS;
 461
 462         case DEMUX_GET_PTS_DELAY:
 463             pi64 = (int64_t*)va_arg( args, int64_t * );
 464             *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
 465             return VLC_SUCCESS;
 466
 467         /* TODO implement others */
 468         default:
 469             return VLC_EGENERIC;
 470     }
 471 }
 472
 473 /*****************************************************************************
 474  * Demux:
 475  *****************************************************************************/
 476 static int Demux( demux_t *p_demux )
 477 {
 478     demux_sys_t *p_sys = p_demux->p_sys;
 479
 480     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 481     int i_blocks_once, i_read;
 482     int i;
 483
 484     /*
 485      * Playback by cell in this pgc, starting at the cell for our chapter.
 486      */
 487
 488     /*
 489      * Check end of pack, and select the following one
 490      */
 491     if( !p_sys->i_pack_len )
 492     {
 493         /* Read NAV packet */
 494         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 495                            1, p_buffer ) != 1 )
 496         {
 497             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 498             intf_UserWarn( p_demux, _("Playback failure"),
 499                             _("DVDRead could not read block %d."),
 500                            p_sys->i_next_vobu );
 501             return -1;
 502         }
 503
 504         /* Basic check to be sure we don't have a empty title
 505          * go to next title if so */
 506         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 507
 508         /* Parse the contained dsi packet */
 509         DvdReadHandleDSI( p_demux, p_buffer );
 510
 511         /* End of title */
 512         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 513         {
 514             if( p_sys->i_title + 1 >= p_sys->i_titles )
 515             {
 516                 return 0; /* EOF */
 517             }
 518
 519             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 520         }
 521
 522         if( p_sys->i_pack_len >= 1024 )
 523         {
 524             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 525                      "This shouldn't happen!", p_sys->i_pack_len );
 526             return 0; /* EOF */
 527         }
 528
 529         /* FIXME: Ugly kludge: we send the pack block to the input for it
 530          * sometimes has a zero scr and restart the sync */
 531         p_sys->i_cur_block++;
 532         p_sys->i_title_offset++;
 533
 534         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 535     }
 536
 537     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 538     {
 539         if( p_sys->i_title + 1 >= p_sys->i_titles )
 540         {
 541             return 0; /* EOF */
 542         }
 543
 544         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 545     }
 546
 547     /*
 548      * Read actual data
 549      */
 550     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 551     p_sys->i_pack_len -= i_blocks_once;
 552
 553     /* Reads from DVD */
 554     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 555                             i_blocks_once, p_buffer );
 556     if( i_read != i_blocks_once )
 557     {
 558         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 559                  i_read, i_blocks_once, p_sys->i_cur_block );
 560         intf_UserFatal( p_demux, false, _("Playback failure"),
 561                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 562                         i_read, i_blocks_once, p_sys->i_cur_block );
 563         return -1;
 564     }
 565
 566     p_sys->i_cur_block += i_read;
 567     p_sys->i_title_offset += i_read;
 568
 569 #if 0
 570     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 571              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 572 #endif
 573
 574     for( i = 0; i < i_read; i++ )
 575     {
 576         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 577                     DVD_VIDEO_LB_LEN );
 578     }
 579
 580 #undef p_pgc
 581
 582     return 1;
 583 }
 584
 585 /*****************************************************************************
 586  * DemuxBlock: demux a given block
 587  *****************************************************************************/
 588 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 589 {
 590     demux_sys_t *p_sys = p_demux->p_sys;
 591     uint8_t     *p = pkt;
 592
 593     while( p < &pkt[i_pkt] )
 594     {
 595         int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
 596         block_t *p_pkt;
 597         if( i_size <= 0 )
 598         {
 599             break;
 600         }
 601
 602         /* Create a block */
 603         p_pkt = block_New( p_demux, i_size );
 604         memcpy( p_pkt->p_buffer, p, i_size);
 605
 606         /* Parse it and send it */
 607         switch( 0x100 | p[3] )
 608         {
 609         case 0x1b9:
 610         case 0x1bb:
 611         case 0x1bc:
 612
 613 #ifdef DVDREAD_DEBUG
 614             if( p[3] == 0xbc )
 615             {
 616                 msg_Warn( p_demux, "received a PSM packet" );
 617             }
 618             else if( p[3] == 0xbb )
 619             {
 620                 msg_Warn( p_demux, "received a SYSTEM packet" );
 621             }
 622 #endif
 623             block_Release( p_pkt );
 624             break;
 625
 626         case 0x1ba:
 627         {
 628             int64_t i_scr;
 629             int i_mux_rate;
 630             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 631             {
 632                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 633                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 634             }
 635             block_Release( p_pkt );
 636             break;
 637         }
 638         default:
 639         {
 640             int i_id = ps_pkt_id( p_pkt );
 641             if( i_id >= 0xc0 )
 642             {
 643                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 644
 645                 if( !tk->b_seen )
 646                 {
 647                     ESNew( p_demux, i_id, 0 );
 648                 }
 649                 if( tk->b_seen && tk->es &&
 650                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 651                 {
 652                     es_out_Send( p_demux->out, tk->es, p_pkt );
 653                 }
 654                 else
 655                 {
 656                     block_Release( p_pkt );
 657                 }
 658             }
 659             else
 660             {
 661                 block_Release( p_pkt );
 662             }
 663             break;
 664         }
 665         }
 666
 667         p += i_size;
 668     }
 669
 670     return VLC_SUCCESS;
 671 }
 672
 673 /*****************************************************************************
 674  * ESNew: register a new elementary stream
 675  *****************************************************************************/
 676 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 677 {
 678     demux_sys_t *p_sys = p_demux->p_sys;
 679     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 680     char psz_language[3];
 681
 682     if( tk->b_seen ) return;
 683
 684     if( ps_track_fill( tk, 0, i_id ) )
 685     {
 686         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 687         return;
 688     }
 689
 690     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 691     if( i_lang && i_lang != 0xffff )
 692     {
 693         psz_language[0] = (i_lang >> 8)&0xff;
 694         psz_language[1] = (i_lang     )&0xff;
 695     }
 696
 697     /* Add a new ES */
 698     if( tk->fmt.i_cat == VIDEO_ES )
 699     {
 700         if( p_sys->i_aspect >= 0 )
 701         {
 702             tk->fmt.video.i_aspect = p_sys->i_aspect;
 703         }
 704     }
 705     else if( tk->fmt.i_cat == AUDIO_ES )
 706     {
 707         int i_audio = -1;
 708         /* find the audio number PLEASE find another way */
 709         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 710         {
 711             i_audio = i_id&0x07;
 712         }
 713         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 714         {
 715             i_audio = i_id&0xf;
 716         }
 717         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 718         {
 719             i_audio = i_id&0x1f;
 720         }
 721         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 722         {
 723             i_audio = i_id&0x1f;
 724         }
 725
 726         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 727     }
 728     else if( tk->fmt.i_cat == SPU_ES )
 729     {
 730         /* Palette */
 731         tk->fmt.subs.spu.palette[0] = 0xBeef;
 732         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 733                 16 * sizeof( uint32_t ) );
 734
 735         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 736     }
 737
 738     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 739     tk->b_seen = true;
 740 }
 741
 742 /*****************************************************************************
 743  * DvdReadSetArea: initialize input data for title x, chapter y.
 744  * It should be called for each user navigation request.
 745  *****************************************************************************
 746  * Take care that i_title and i_chapter start from 0.
 747  *****************************************************************************/
 748 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 749                            int i_angle )
 750 {
 751     demux_sys_t *p_sys = p_demux->p_sys;
 752     int pgc_id = 0, pgn = 0;
 753     int i;
 754
 755 #define p_pgc p_sys->p_cur_pgc
 756 #define p_vmg p_sys->p_vmg_file
 757 #define p_vts p_sys->p_vts_file
 758
 759     if( i_title >= 0 && i_title < p_sys->i_titles &&
 760         i_title != p_sys->i_title )
 761     {
 762         int i_start_cell, i_end_cell;
 763
 764         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 765         if( p_vts != NULL ) ifoClose( p_vts );
 766         p_sys->i_title = i_title;
 767
 768         /*
 769          *  We have to load all title information
 770          */
 771         msg_Dbg( p_demux, "open VTS %d, for title %d",
 772                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 773
 774         /* Ifo vts */
 775         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 776                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 777         {
 778             msg_Err( p_demux, "fatal error in vts ifo" );
 779             return VLC_EGENERIC;
 780         }
 781
 782         /* Title position inside the selected vts */
 783         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 784
 785         /* Find title start/end */
 786         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 787         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 788         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 789
 790         p_sys->i_title_start_cell =
 791             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 792         p_sys->i_title_start_block =
 793             p_pgc->cell_playback[i_start_cell].first_sector;
 794
 795         p_sys->i_title_end_cell =
 796             i_end_cell = p_pgc->nr_of_cells - 1;
 797         p_sys->i_title_end_block =
 798             p_pgc->cell_playback[i_end_cell].last_sector;
 799
 800         p_sys->i_title_offset = 0;
 801
 802         p_sys->i_title_blocks = 0;
 803         for( i = i_start_cell; i <= i_end_cell; i++ )
 804         {
 805             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 806                 p_pgc->cell_playback[i].first_sector + 1;
 807         }
 808
 809         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 810                  "start %d end %d blocks: %d",
 811                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 812                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 813                  p_sys->i_title_blocks );
 814
 815         /*
 816          * Set properties for current chapter
 817          */
 818         p_sys->i_chapter = 0;
 819         p_sys->i_chapters =
 820             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 821
 822         pgc_id = p_vts->vts_ptt_srpt->title[
 823                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 824         pgn = p_vts->vts_ptt_srpt->title[
 825                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 826
 827         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 828         p_sys->i_pack_len = 0;
 829         p_sys->i_next_cell =
 830             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 831         DvdReadFindCell( p_demux );
 832
 833         p_sys->i_next_vobu = p_sys->i_cur_block =
 834             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 835
 836         /*
 837          * Angle management
 838          */
 839         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 840         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 841
 842         /*
 843          * We've got enough info, time to open the title set data.
 844          */
 845         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 846             p_vmg->tt_srpt->title[i_title].title_set_nr,
 847             DVD_READ_TITLE_VOBS ) ) )
 848         {
 849             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 850                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 851             return VLC_EGENERIC;
 852         }
 853
 854         //IfoPrintTitle( p_demux );
 855
 856         /*
 857          * Destroy obsolete ES by reinitializing program 0
 858          * and find all ES in title with ifo data
 859          */
 860         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 861
 862         for( i = 0; i < PS_TK_COUNT; i++ )
 863         {
 864             ps_track_t *tk = &p_sys->tk[i];
 865             if( tk->b_seen )
 866             {
 867                 es_format_Clean( &tk->fmt );
 868                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 869             }
 870             tk->b_seen = false;
 871         }
 872
 873         if( p_demux->info.i_title != i_title )
 874         {
 875             p_demux->info.i_update |=
 876                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 877             p_demux->info.i_title = i_title;
 878             p_demux->info.i_seekpoint = 0;
 879         }
 880
 881         /* TODO: re-add angles */
 882
 883
 884         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 885         p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
 886
 887 #define audio_control \
 888     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 889
 890         /* Audio ES, in the order they appear in the .ifo */
 891         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 892         {
 893             int i_position = 0;
 894             uint16_t i_id;
 895
 896             //IfoPrintAudio( p_demux, i );
 897
 898             /* Audio channel is active if first byte is 0x80 */
 899             if( audio_control & 0x8000 )
 900             {
 901                 i_position = ( audio_control & 0x7F00 ) >> 8;
 902
 903                 msg_Dbg( p_demux, "audio position  %d", i_position );
 904                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 905                 {
 906                 case 0x00: /* A52 */
 907                     i_id = (0x80 + i_position) | 0xbd00;
 908                     break;
 909                 case 0x02:
 910                 case 0x03: /* MPEG audio */
 911                     i_id = 0xc000 + i_position;
 912                     break;
 913                 case 0x04: /* LPCM */
 914                     i_id = (0xa0 + i_position) | 0xbd00;
 915                     break;
 916                 case 0x06: /* DTS */
 917                     i_id = (0x88 + i_position) | 0xbd00;
 918                     break;
 919                 default:
 920                     i_id = 0;
 921                     msg_Err( p_demux, "unknown audio type %.2x",
 922                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 923                 }
 924
 925                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 926                        vts_audio_attr[i - 1].lang_code );
 927             }
 928         }
 929 #undef audio_control
 930
 931 #define spu_palette \
 932     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 933
 934         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 935
 936 #define spu_control \
 937     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 938
 939         /* Sub Picture ES */
 940         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 941         {
 942             int i_position = 0;
 943             uint16_t i_id;
 944
 945             //IfoPrintSpu( p_sys, i );
 946             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 947
 948             if( spu_control & 0x80000000 )
 949             {
 950                 /*  there are several streams for one spu */
 951                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 952                 {
 953                     /* 16:9 */
 954                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 955                     {
 956                     case 1: /* letterbox */
 957                         i_position = spu_control & 0xff;
 958                         break;
 959                     case 2: /* pan&scan */
 960                         i_position = ( spu_control >> 8 ) & 0xff;
 961                         break;
 962                     default: /* widescreen */
 963                         i_position = ( spu_control >> 16 ) & 0xff;
 964                         break;
 965                     }
 966                 }
 967                 else
 968                 {
 969                     /* 4:3 */
 970                     i_position = ( spu_control >> 24 ) & 0x7F;
 971                 }
 972
 973                 i_id = (0x20 + i_position) | 0xbd00;
 974
 975                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 976                        vts_subp_attr[i - 1].lang_code );
 977             }
 978         }
 979 #undef spu_control
 980
 981     }
 982     else if( i_title != -1 && i_title != p_sys->i_title )
 983
 984     {
 985         return VLC_EGENERIC; /* Couldn't set title */
 986     }
 987
 988     /*
 989      * Chapter selection
 990      */
 991
 992     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 993     {
 994         pgc_id = p_vts->vts_ptt_srpt->title[
 995                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
 996         pgn = p_vts->vts_ptt_srpt->title[
 997                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
 998
 999         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1000
1001         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1002         p_sys->i_chapter = i_chapter;
1003         DvdReadFindCell( p_demux );
1004
1005         p_sys->i_title_offset = 0;
1006         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1007         {
1008             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1009                 p_pgc->cell_playback[i].first_sector + 1;
1010         }
1011
1012         p_sys->i_pack_len = 0;
1013         p_sys->i_next_vobu = p_sys->i_cur_block =
1014             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1015
1016         if( p_demux->info.i_seekpoint != i_chapter )
1017         {
1018             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1019             p_demux->info.i_seekpoint = i_chapter;
1020         }
1021     }
1022     else if( i_chapter != -1 )
1023
1024     {
1025         return VLC_EGENERIC; /* Couldn't set chapter */
1026     }
1027
1028 #undef p_pgc
1029 #undef p_vts
1030 #undef p_vmg
1031
1032     return VLC_SUCCESS;
1033 }
1034
1035 /*****************************************************************************
1036  * DvdReadSeek : Goes to a given position on the stream.
1037  *****************************************************************************
1038  * This one is used by the input and translate chronological position from
1039  * input to logical position on the device.
1040  *****************************************************************************/
1041 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1042 {
1043     demux_sys_t *p_sys = p_demux->p_sys;
1044     int i_chapter = 0;
1045     int i_cell = 0;
1046     int i_vobu = 0;
1047     int i_sub_cell = 0;
1048     int i_block;
1049
1050 #define p_pgc p_sys->p_cur_pgc
1051 #define p_vts p_sys->p_vts_file
1052
1053     /* Find cell */
1054     i_block = i_block_offset;
1055     for( i_cell = p_sys->i_title_start_cell;
1056          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1057     {
1058         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1059             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1060
1061         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1062             p_pgc->cell_playback[i_cell].first_sector + 1);
1063     }
1064     if( i_cell > p_sys->i_title_end_cell )
1065     {
1066         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1067         return;
1068     }
1069     i_block += p_pgc->cell_playback[i_cell].first_sector;
1070     p_sys->i_title_offset = i_block_offset;
1071
1072     /* Find chapter */
1073     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1074     {
1075         int pgc_id, pgn, i_tmp;
1076
1077         pgc_id = p_vts->vts_ptt_srpt->title[
1078                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1079         pgn = p_vts->vts_ptt_srpt->title[
1080                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1081
1082         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1083
1084         if( i_tmp > i_cell ) break;
1085     }
1086
1087     if( i_chapter < p_sys->i_chapters &&
1088         p_demux->info.i_seekpoint != i_chapter )
1089     {
1090         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1091         p_demux->info.i_seekpoint = i_chapter;
1092     }
1093
1094     /* Find vobu */
1095     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1096     {
1097         i_vobu++;
1098     }
1099
1100     /* Find sub_cell */
1101     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1102            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1103     {
1104         i_sub_cell++;
1105     }
1106
1107 #if 1
1108     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1109              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1110              i_cell, i_sub_cell, i_chapter, i_vobu,
1111              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1112              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1113              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1114 #endif
1115
1116     p_sys->i_cur_block = i_block;
1117     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1118     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1119     p_sys->i_cur_cell = i_cell;
1120     p_sys->i_chapter = i_chapter;
1121     DvdReadFindCell( p_demux );
1122
1123 #undef p_vts
1124 #undef p_pgc
1125
1126     return;
1127 }
1128
1129 /*****************************************************************************
1130  * DvdReadHandleDSI
1131  *****************************************************************************/
1132 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1133 {
1134     demux_sys_t *p_sys = p_demux->p_sys;
1135
1136     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1137
1138     /*
1139      * Determine where we go next.  These values are the ones we mostly
1140      * care about.
1141      */
1142     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1143     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1144
1145     /*
1146      * Store the timecodes so we can get the current time
1147      */
1148     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1149     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1150
1151     /*
1152      * If we're not at the end of this cell, we can determine the next
1153      * VOBU to display using the VOBU_SRI information section of the
1154      * DSI.  Using this value correctly follows the current angle,
1155      * avoiding the doubled scenes in The Matrix, and makes our life
1156      * really happy.
1157      */
1158
1159     p_sys->i_next_vobu = p_sys->i_cur_block +
1160         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1161
1162     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1163         && p_sys->i_angle > 1 )
1164     {
1165         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1166         {
1167         case 0x4:
1168             /* Interleaved unit with no angle */
1169             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1170             {
1171                 p_sys->i_next_vobu = p_sys->i_cur_block +
1172                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1173                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1174             }
1175             else
1176             {
1177                 p_sys->i_next_vobu = p_sys->i_cur_block +
1178                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1179             }
1180             break;
1181         case 0x5:
1182             /* vobu is end of ilvu */
1183             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1184             {
1185                 p_sys->i_next_vobu = p_sys->i_cur_block +
1186                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1187                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1188
1189                 break;
1190             }
1191         case 0x6:
1192             /* vobu is beginning of ilvu */
1193         case 0x9:
1194             /* next scr is 0 */
1195         case 0xa:
1196             /* entering interleaved section */
1197         case 0x8:
1198             /* non interleaved cells in interleaved section */
1199         default:
1200             p_sys->i_next_vobu = p_sys->i_cur_block +
1201                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1202             break;
1203         }
1204     }
1205     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1206     {
1207         p_sys->i_cur_cell = p_sys->i_next_cell;
1208
1209         /* End of title */
1210         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1211
1212         DvdReadFindCell( p_demux );
1213
1214         p_sys->i_next_vobu =
1215             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1216
1217         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 );
1218     }
1219
1220
1221 #if 0
1222     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1223              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1224              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1225              p_sys->dsi_pack.dsi_gi.vobu_ea,
1226              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1227              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1228              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1229
1230     msg_Dbg( p_demux, "cell duration: %lld",
1231              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1232
1233     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1234              p_sys->dsi_pack.sml_pbi.category,
1235              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1236              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1237              p_sys->dsi_pack.sml_pbi.size );
1238
1239     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1240              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1241              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1242              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1243 #endif
1244 }
1245
1246 /*****************************************************************************
1247  * DvdReadFindCell
1248  *****************************************************************************/
1249 static void DvdReadFindCell( demux_t *p_demux )
1250 {
1251     demux_sys_t *p_sys = p_demux->p_sys;
1252
1253     pgc_t *p_pgc;
1254     int   pgc_id, pgn;
1255     int   i = 0;
1256
1257 #define cell p_sys->p_cur_pgc->cell_playback
1258
1259     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1260     {
1261         p_sys->i_cur_cell += p_sys->i_angle - 1;
1262
1263         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1264         {
1265             i++;
1266         }
1267         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1268     }
1269     else
1270     {
1271         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1272     }
1273
1274 #undef cell
1275
1276     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1277
1278     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1279                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1280     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1281               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1282     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1283
1284     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1285     {
1286         p_sys->i_chapter++;
1287
1288         if( p_sys->i_chapter < p_sys->i_chapters &&
1289             p_demux->info.i_seekpoint != p_sys->i_chapter )
1290         {
1291             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1292             p_demux->info.i_seekpoint = p_sys->i_chapter;
1293         }
1294     }
1295 }
1296
1297 /*****************************************************************************
1298  * DemuxTitles: get the titles/chapters structure
1299  *****************************************************************************/
1300 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1301 {
1302     demux_sys_t *p_sys = p_demux->p_sys;
1303     input_title_t *t;
1304     seekpoint_t *s;
1305     int32_t i_titles;
1306     int i;
1307
1308     /* Find out number of titles/chapters */
1309 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1310
1311     i_titles = tt_srpt->nr_of_srpts;
1312     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1313
1314     for( i = 0; i < i_titles; i++ )
1315     {
1316         int32_t i_chapters = 0;
1317         int j;
1318
1319         i_chapters = tt_srpt->title[i].nr_of_ptts;
1320         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1321
1322         t = vlc_input_title_New();
1323
1324         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1325         {
1326             s = vlc_seekpoint_New();
1327             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1328         }
1329
1330         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1331     }
1332
1333 #undef tt_srpt
1334 }