git.sesse.net Git - vlc/blob - plugins/dvdread/input_dvdread.c

   1 /*****************************************************************************
   2  * input_dvdread.c: DvdRead plugin.
   3  *****************************************************************************
   4  * This plugins should handle all the known specificities of the DVD format,
   5  * especially the 2048 bytes logical block size.
   6  * It depends on: libdvdread for ifo files and block reading.
   7  *****************************************************************************
   8  * Copyright (C) 2001 VideoLAN
   9  * $Id: input_dvdread.c,v 1.3.2.1 2001/12/31 01:21:44 massiot Exp $
  10  *
  11  * Author: Stéphane Borel <stef@via.ecp.fr>
  12  *
  13  * Some code taken form the play_title.c by Billy Biggs <vektor@dumbterm.net>
  14  * in libdvdread.
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  29  *****************************************************************************/
  30
  31 #define MODULE_NAME dvdread
  32 #include "modules_inner.h"
  33
  34 /*****************************************************************************
  35  * Preamble
  36  *****************************************************************************/
  37 #include "defs.h"
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41
  42 #ifdef HAVE_UNISTD_H
  43 #   include <unistd.h>
  44 #endif
  45
  46 #include <fcntl.h>
  47 #include <sys/types.h>
  48 #include <string.h>
  49 #include <errno.h>
  50 #include <assert.h>
  51
  52 #ifdef STRNCASECMP_IN_STRINGS_H
  53 #   include <strings.h>
  54 #endif
  55
  56 #if defined( WIN32 )
  57 #   include <io.h>                                                 /* read() */
  58 #else
  59 #   include <sys/uio.h>                                      /* struct iovec */
  60 #endif
  61
  62
  63 #include "common.h"
  64 #include "intf_msg.h"
  65 #include "threads.h"
  66 #include "mtime.h"
  67 #include "iso_lang.h"
  68 #include "tests.h"
  69
  70 #if defined( WIN32 )
  71 #   include "input_iovec.h"
  72 #endif
  73
  74 #include "stream_control.h"
  75 #include "input_ext-intf.h"
  76 #include "input_ext-dec.h"
  77 #include "input_ext-plugins.h"
  78
  79 #include "input_dvdread.h"
  80
  81 #include "debug.h"
  82
  83 #include "modules.h"
  84 #include "modules_export.h"
  85
  86 /* how many blocks DVDRead will read in each loop */
  87 #define DVD_BLOCK_READ_ONCE 64
  88
  89 /*****************************************************************************
  90  * Local prototypes
  91  *****************************************************************************/
  92 /* called from outside */
  93 static int  DvdReadProbe    ( probedata_t *p_data );
  94 static void DvdReadInit     ( struct input_thread_s * );
  95 static void DvdReadEnd      ( struct input_thread_s * );
  96 static void DvdReadOpen     ( struct input_thread_s * );
  97 static void DvdReadClose    ( struct input_thread_s * );
  98 static int  DvdReadSetArea  ( struct input_thread_s *, struct input_area_s * );
  99 static int  DvdReadSetProgram( struct input_thread_s *, pgrm_descriptor_t * );
 100 static int  DvdReadRead     ( struct input_thread_s *, data_packet_t ** );
 101 static void DvdReadSeek     ( struct input_thread_s *, off_t );
 102 static int  DvdReadRewind   ( struct input_thread_s * );
 103
 104 /* called only from here */
 105 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data );
 106 static void DvdReadFindCell ( thread_dvd_data_t * p_dvd );
 107
 108 /*****************************************************************************
 109  * Declare a buffer manager
 110  *****************************************************************************/
 111 #define FLAGS           BUFFERS_UNIQUE_SIZE
 112 #define NB_LIFO         1
 113 DECLARE_BUFFERS_SHARED( FLAGS, NB_LIFO );
 114 DECLARE_BUFFERS_INIT( FLAGS, NB_LIFO );
 115 DECLARE_BUFFERS_END_SHARED( FLAGS, NB_LIFO );
 116 DECLARE_BUFFERS_NEWPACKET_SHARED( FLAGS, NB_LIFO );
 117 DECLARE_BUFFERS_DELETEPACKET_SHARED( FLAGS, NB_LIFO, 1000 );
 118 DECLARE_BUFFERS_NEWPES( FLAGS, NB_LIFO );
 119 DECLARE_BUFFERS_DELETEPES( FLAGS, NB_LIFO, 1000 );
 120 DECLARE_BUFFERS_TOIO( FLAGS, DVD_VIDEO_LB_LEN );
 121 DECLARE_BUFFERS_SHAREBUFFER( FLAGS );
 122
 123 /*****************************************************************************
 124  * Functions exported as capabilities. They are declared as static so that
 125  * we don't pollute the namespace too much.
 126  *****************************************************************************/
 127 void _M( input_getfunctions )( function_list_t * p_function_list )
 128 {
 129 #define input p_function_list->functions.input
 130     p_function_list->pf_probe = DvdReadProbe;
 131     input.pf_init             = DvdReadInit;
 132     input.pf_open             = DvdReadOpen;
 133     input.pf_close            = DvdReadClose;
 134     input.pf_end              = DvdReadEnd;
 135     input.pf_init_bit_stream  = InitBitstream;
 136     input.pf_read             = DvdReadRead;
 137     input.pf_set_area         = DvdReadSetArea;
 138     input.pf_set_program      = DvdReadSetProgram;
 139     input.pf_demux            = input_DemuxPS;
 140     input.pf_new_packet       = input_NewPacket;
 141     input.pf_new_pes          = input_NewPES;
 142     input.pf_delete_packet    = input_DeletePacket;
 143     input.pf_delete_pes       = input_DeletePES;
 144     input.pf_rewind           = DvdReadRewind;
 145     input.pf_seek             = DvdReadSeek;
 146 #undef input
 147 }
 148
 149 /*
 150  * Data reading functions
 151  */
 152
 153 /*****************************************************************************
 154  * DvdReadProbe: verifies that the stream is a PS stream
 155  *****************************************************************************/
 156 static int DvdReadProbe( probedata_t *p_data )
 157 {
 158     input_thread_t * p_input = (input_thread_t *)p_data;
 159
 160     char * psz_name = p_input->p_source;
 161     int i_score = 5;
 162
 163     if( TestMethod( INPUT_METHOD_VAR, "dvdread" ) )
 164     {
 165         return( 999 );
 166     }
 167
 168     if( ( strlen(psz_name) > 8 ) && !strncasecmp( psz_name, "dvdread:", 8 ) )
 169     {
 170         /* If the user specified "dvdread:" then he probably wants
 171          * to use libdvdread */
 172         i_score = 100;
 173         psz_name += 8;
 174     }
 175
 176     return( i_score );
 177 }
 178
 179 /*****************************************************************************
 180  * DvdReadInit: initializes DVD structures
 181  *****************************************************************************/
 182 static void DvdReadInit( input_thread_t * p_input )
 183 {
 184     thread_dvd_data_t *  p_dvd;
 185     input_area_t *       p_area;
 186     int                  i_title;
 187     int                  i_chapter;
 188     int                  i;
 189
 190     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 191     if( p_dvd == NULL )
 192     {
 193         intf_ErrMsg( "dvdread error: out of memory" );
 194         p_input->b_error = 1;
 195         return;
 196     }
 197
 198     /* we take the pointer to dvd_reader_t back  */
 199     p_dvd->p_dvdread = (dvd_reader_t *)p_input->p_plugin_data;
 200     p_dvd->p_title = NULL;
 201     p_dvd->p_vts_file = NULL;
 202
 203     p_input->p_plugin_data = (void *)p_dvd;
 204
 205     if( (p_input->p_method_data = input_BuffersInit()) == NULL )
 206     {
 207         free( p_dvd );
 208         p_input->b_error = 1;
 209         return;
 210     }
 211
 212     /* We read DVD_BLOCK_READ_ONCE in each loop */
 213     p_dvd->i_block_once = DVD_BLOCK_READ_ONCE;
 214
 215     /* Ifo allocation & initialisation */
 216     if( ! ( p_dvd->p_vmg_file = ifoOpen( p_dvd->p_dvdread, 0 ) ) )
 217     {
 218         intf_ErrMsg( "dvdread error: can't open VMG info" );
 219         input_BuffersEnd( p_input->p_method_data );
 220         free( p_dvd );
 221         p_input->b_error = 1;
 222         return;
 223     }
 224     intf_WarnMsg( 2, "dvdread info: VMG opened" );
 225
 226     /* Set stream and area data */
 227     vlc_mutex_lock( &p_input->stream.stream_lock );
 228
 229     /* Initialize ES structures */
 230     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 231
 232     /* disc input method */
 233     p_input->stream.i_method = INPUT_METHOD_DVD;
 234
 235 #define tt_srpt p_dvd->p_vmg_file->tt_srpt
 236     intf_WarnMsg( 2, "dvdread info: number of titles: %d", tt_srpt->nr_of_srpts );
 237
 238 #define area p_input->stream.pp_areas
 239     /* We start from 1 here since the default area 0
 240      * is reserved for video_ts.vob */
 241     for( i = 1 ; i <= tt_srpt->nr_of_srpts ; i++ )
 242     {
 243         input_AddArea( p_input );
 244
 245         /* Titles are Program Chains */
 246         area[i]->i_id = i;
 247
 248         /* Absolute start offset and size
 249          * We can only set that with vts ifo, so we do it during the
 250          * first call to DVDSetArea */
 251         area[i]->i_start = 0;
 252         area[i]->i_size = 0;
 253
 254         /* Number of chapters */
 255         area[i]->i_part_nb = tt_srpt->title[i-1].nr_of_ptts;
 256         area[i]->i_part = 1;
 257
 258         /* Number of angles */
 259         area[i]->i_angle_nb = 0;
 260         area[i]->i_angle = 1;
 261
 262         area[i]->i_plugin_data = tt_srpt->title[i-1].title_set_nr;
 263     }
 264 #undef area
 265
 266     /* Get requested title - if none try the first title */
 267     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 268     if( i_title <= 0 || i_title > tt_srpt->nr_of_srpts )
 269     {
 270         i_title = 1;
 271     }
 272
 273 #undef tt_srpt
 274
 275     /* Get requested chapter - if none defaults to first one */
 276     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 277     if( i_chapter <= 0 )
 278     {
 279         i_chapter = 1;
 280     }
 281
 282     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 283
 284     p_area = p_input->stream.pp_areas[i_title];
 285
 286     /* set title, chapter, audio and subpic */
 287     DvdReadSetArea( p_input, p_area );
 288
 289     vlc_mutex_unlock( &p_input->stream.stream_lock );
 290
 291     return;
 292 }
 293
 294 /*****************************************************************************
 295  * DvdReadOpen: open libdvdread
 296  *****************************************************************************/
 297 static void DvdReadOpen( struct input_thread_s *p_input )
 298 {
 299     dvd_reader_t    *p_dvdread;
 300
 301     vlc_mutex_lock( &p_input->stream.stream_lock );
 302
 303     /* If we are here we can control the pace... */
 304     p_input->stream.b_pace_control = 1;
 305
 306     p_input->stream.b_seekable = 1;
 307     p_input->stream.p_selected_area->i_size = 0;
 308
 309     p_input->stream.p_selected_area->i_tell = 0;
 310
 311     vlc_mutex_unlock( &p_input->stream.stream_lock );
 312
 313     /* XXX: put this shit in an access plugin */
 314     if( strlen( p_input->p_source ) > 8
 315          && !strncasecmp( p_input->p_source, "dvdread:", 8 ) )
 316     {
 317         p_dvdread = DVDOpen( p_input->p_source + 8 );
 318     }
 319     else
 320     {
 321         p_dvdread = DVDOpen( p_input->p_source );
 322     }
 323
 324     if( ! p_dvdread )
 325     {
 326         p_input->b_error = 1;
 327         return;
 328     }
 329
 330     /* the vlc input doesn't handle the file descriptor with libdvdread */
 331     p_input->i_handle = -1;
 332
 333     /* p_dvdread is stored in p_plugin_data until we have
 334      * malloc'ed a dvd_thread_data_t */
 335     p_input->p_plugin_data = (void *) p_dvdread;
 336 }
 337
 338 /*****************************************************************************
 339  * DvdReadClose: close libdvdread
 340  *****************************************************************************/
 341 static void DvdReadClose( struct input_thread_s *p_input )
 342 {
 343     DVDClose( ((thread_dvd_data_t*)p_input->p_plugin_data)->p_dvdread );
 344     free( p_input->p_plugin_data );
 345     p_input->p_plugin_data = NULL;
 346
 347 }
 348
 349 /*****************************************************************************
 350  * DvdReadEnd: frees unused data
 351  *****************************************************************************/
 352 static void DvdReadEnd( input_thread_t * p_input )
 353 {
 354     thread_dvd_data_t *     p_dvd;
 355
 356     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 357
 358     /* close libdvdread */
 359     DVDCloseFile( p_dvd->p_title );
 360     ifoClose( p_dvd->p_vts_file );
 361     ifoClose( p_dvd->p_vmg_file );
 362
 363     input_BuffersEnd( p_input->p_method_data );
 364 }
 365
 366 /*****************************************************************************
 367  * DvdReadSetProgram: Does nothing, a DVD is mono-program
 368  *****************************************************************************/
 369 static int DvdReadSetProgram( input_thread_t * p_input,
 370                               pgrm_descriptor_t * p_program )
 371 {
 372     return 0;
 373 }
 374
 375 #define p_pgc         p_dvd->p_cur_pgc
 376
 377 /*****************************************************************************
 378  * DvdReadSetArea: initialize input data for title x, chapter y.
 379  * It should be called for each user navigation request.
 380  *****************************************************************************
 381  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 382  * Note that you have to take the lock before entering here.
 383  *****************************************************************************/
 384 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
 385 {
 386     thread_dvd_data_t *  p_dvd;
 387     int                  pgc_id = 0;
 388     int                  pgn = 0;
 389
 390     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 391
 392     /* we can't use the interface slider until initilization is complete */
 393     p_input->stream.b_seekable = 0;
 394
 395     if( p_area != p_input->stream.p_selected_area )
 396     {
 397         es_descriptor_t *    p_es;
 398         int                  i_cell = 0;
 399         int                  i_audio_nb = 0;
 400         int                  i_spu_nb = 0;
 401         int                  i;
 402
 403 #define p_vmg         p_dvd->p_vmg_file
 404 #define p_vts         p_dvd->p_vts_file
 405         if( p_dvd->p_title != NULL )
 406         {
 407             DVDCloseFile( p_dvd->p_title );
 408         }
 409
 410         if( p_vts != NULL )
 411         {
 412             ifoClose( p_vts );
 413         }
 414
 415         /* Reset the Chapter position of the old title */
 416         p_input->stream.p_selected_area->i_part = 1;
 417
 418         /*
 419          *  We have to load all title information
 420          */
 421         /* Change the default area */
 422         p_input->stream.p_selected_area = p_area;
 423
 424         intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
 425             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 426             p_area->i_id );
 427
 428         /* ifo vts */
 429         if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
 430                 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
 431         {
 432             intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
 433             ifoClose( p_vmg );
 434             DVDClose( p_dvd->p_dvdread );
 435             p_input->b_error = 1;
 436             return -1;
 437         }
 438
 439         /* title position inside the selected vts */
 440         p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
 441
 442         /*
 443          * Set selected title start
 444          */
 445         pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
 446         pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
 447         p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 448         i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 449
 450         p_area->i_start =
 451             LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
 452
 453         intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
 454                          p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
 455
 456         /*
 457          * Find title end
 458          */
 459         i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
 460
 461         p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
 462         p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
 463
 464         intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
 465                           p_area->i_start , p_area->i_size, p_dvd->i_end_block );
 466
 467         /*
 468          * Set properties for current chapter
 469          */
 470         /* Remeber current chapter */
 471         p_dvd->i_chapter = p_area->i_part;
 472         p_dvd->b_eoc = 0;
 473
 474         pgc_id = p_vts->vts_ptt_srpt->title[
 475                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 476         pgn = p_vts->vts_ptt_srpt->title[
 477                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 478
 479         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 480         p_dvd->i_pack_len = 0;
 481         p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
 482         DvdReadFindCell( p_dvd );
 483
 484         p_dvd->i_next_vobu = p_dvd->i_cur_block =
 485             p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 486
 487         /*
 488          * Angle management
 489          */
 490         p_area->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
 491         p_area->i_angle = main_GetIntVariable( INPUT_ANGLE_VAR, 1 );
 492
 493         if( ( p_area->i_angle <= 0 ) || p_area->i_angle > p_area->i_angle_nb )
 494         {
 495             p_area->i_angle = 1;
 496         }
 497         p_dvd->i_angle = p_area->i_angle;
 498         p_dvd->i_angle_nb = p_area->i_angle_nb;
 499
 500         /*
 501          * We've got enough info, time to open the title set data.
 502          */
 503         if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
 504             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 505             DVD_READ_TITLE_VOBS ) ) )
 506         {
 507             intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
 508                          p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
 509             ifoClose( p_vts );
 510             ifoClose( p_vmg );
 511             DVDClose( p_dvd->p_dvdread );
 512             return -1;
 513         }
 514
 515 //        IfoPrintTitle( p_dvd );
 516
 517         /*
 518          * Destroy obsolete ES by reinitializing program 0
 519          * and find all ES in title with ifo data
 520          */
 521         if( p_input->stream.pp_programs != NULL )
 522         {
 523             /* We don't use input_EndStream here since
 524              * we keep area structures */
 525
 526             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 527             {
 528                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 529             }
 530
 531             free( p_input->stream.pp_selected_es );
 532             input_DelProgram( p_input, p_input->stream.p_selected_program );
 533
 534             p_input->stream.pp_selected_es = NULL;
 535             p_input->stream.i_selected_es_number = 0;
 536         }
 537
 538         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 539         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 540
 541         /* No PSM to read in DVD mode, we already have all information */
 542         p_input->stream.p_selected_program->b_is_ok = 1;
 543
 544         p_es = NULL;
 545
 546         /* ES 0 -> video MPEG2 */
 547 //        IfoPrintVideo( p_dvd );
 548
 549         p_es = input_AddES( p_input, p_input->stream.p_selected_program, 0xe0, 0 );
 550         p_es->i_stream_id = 0xe0;
 551         p_es->i_type = MPEG2_VIDEO_ES;
 552         p_es->i_cat = VIDEO_ES;
 553         if( p_main->b_video )
 554         {
 555             input_SelectES( p_input, p_es );
 556         }
 557
 558 #define audio_control \
 559     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 560         /* Audio ES, in the order they appear in .ifo */
 561         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
 562         {
 563             int i_position = 0;
 564             u16 i_id;
 565
 566 //            IfoPrintAudio( p_dvd, i );
 567
 568             /* audio channel is active if first byte is 0x80 */
 569             if( audio_control & 0x8000 )
 570             {
 571                 i_audio_nb++;
 572                 i_position = ( audio_control & 0x7F00 ) >> 8;
 573
 574             intf_WarnMsg( 12, "dvd audio position  %d", i_position );
 575                 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
 576                 {
 577                 case 0x00:              /* AC3 */
 578                     i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
 579                     p_es = input_AddES( p_input,
 580                                p_input->stream.p_selected_program, i_id, 0 );
 581                     p_es->i_stream_id = 0xbd;
 582                     p_es->i_type = AC3_AUDIO_ES;
 583                     p_es->b_audio = 1;
 584                     p_es->i_cat = AUDIO_ES;
 585                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 586                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 587                     strcat( p_es->psz_desc, " (ac3)" );
 588
 589                     break;
 590                 case 0x02:
 591                 case 0x03:              /* MPEG audio */
 592                     i_id = 0xc0 + i_position;
 593                     p_es = input_AddES( p_input,
 594                                     p_input->stream.p_selected_program, i_id, 0 );
 595                     p_es->i_stream_id = i_id;
 596                     p_es->i_type = MPEG2_AUDIO_ES;
 597                     p_es->b_audio = 1;
 598                     p_es->i_cat = AUDIO_ES;
 599                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 600                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 601                     strcat( p_es->psz_desc, " (mpeg)" );
 602
 603                     break;
 604                 case 0x04:              /* LPCM */
 605
 606                     i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
 607                     p_es = input_AddES( p_input,
 608                                     p_input->stream.p_selected_program, i_id, 0 );
 609                     p_es->i_stream_id = i_id;
 610                     p_es->i_type = LPCM_AUDIO_ES;
 611                     p_es->b_audio = 1;
 612                     p_es->i_cat = AUDIO_ES;
 613                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 614                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 615                     strcat( p_es->psz_desc, " (lpcm)" );
 616
 617                     break;
 618                 case 0x06:              /* DTS */
 619                     i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
 620                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 621                                  "(0x%x)", i_id );
 622                     break;
 623                 default:
 624                     i_id = 0;
 625                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 626                              p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
 627                 }
 628             }
 629         }
 630 #undef audio_control
 631 #define spu_control \
 632     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 633
 634         /* Sub Picture ES */
 635
 636         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 637         {
 638             int i_position = 0;
 639             u16 i_id;
 640
 641 //            IfoPrintSpu( p_dvd, i );
 642             intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
 643
 644             if( spu_control & 0x80000000 )
 645             {
 646                 i_spu_nb++;
 647
 648                 /*  there are several streams for one spu */
 649                 if(  p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 650                 {
 651                     /* 16:9 */
 652                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 653                     {
 654                     case 1:
 655                         i_position = spu_control & 0xff;
 656                         break;
 657                     case 2:
 658                         i_position = ( spu_control >> 8 ) & 0xff;
 659                         break;
 660                     default:
 661                         i_position = ( spu_control >> 16 ) & 0xff;
 662                         break;
 663                     }
 664                 }
 665                 else
 666                 {
 667                     /* 4:3 */
 668                     i_position = ( spu_control >> 24 ) & 0x7F;
 669                 }
 670
 671                 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
 672                 p_es = input_AddES( p_input,
 673                                     p_input->stream.p_selected_program, i_id, 0 );
 674                 p_es->i_stream_id = 0xbd;
 675                 p_es->i_type = DVD_SPU_ES;
 676                 p_es->i_cat = SPU_ES;
 677                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 678                     p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) ) );
 679             }
 680         }
 681 #undef spu_control
 682         if( p_main->b_audio )
 683         {
 684             /* For audio: first one if none or a not existing one specified */
 685             int i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 686             if( i_audio < 0 || i_audio > i_audio_nb )
 687             {
 688                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 689                 i_audio = 1;
 690             }
 691             if( i_audio > 0 && i_audio_nb > 0 )
 692             {
 693                 if( main_GetIntVariable( AOUT_SPDIF_VAR, 0 ) ||
 694                     ( main_GetIntVariable( INPUT_AUDIO_VAR, 0 ) ==
 695                       REQUESTED_AC3 ) )
 696                 {
 697                     int     i_ac3 = i_audio;
 698                     while( ( p_input->stream.pp_es[i_ac3]->i_type !=
 699                              AC3_AUDIO_ES ) && ( i_ac3 <=
 700                              p_vts->vtsi_mat->nr_of_vts_audio_streams ) )
 701                     {
 702                         i_ac3++;
 703                     }
 704                     if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
 705                     {
 706                         input_SelectES( p_input,
 707                                         p_input->stream.pp_es[i_ac3] );
 708                     }
 709                 }
 710                 else
 711                 {
 712                     input_SelectES( p_input,
 713                                     p_input->stream.pp_es[i_audio] );
 714                 }
 715             }
 716         }
 717
 718         if( p_main->b_video )
 719         {
 720             /* for spu, default is none */
 721             int i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 722             if( i_spu < 0 || i_spu > i_spu_nb )
 723             {
 724                 main_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
 725                 i_spu = 0;
 726             }
 727             if( i_spu > 0 && i_spu_nb > 0 )
 728             {
 729                 i_spu += p_vts->vtsi_mat->nr_of_vts_audio_streams;
 730                 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 731             }
 732         }
 733     } /* i_title >= 0 */
 734     else
 735     {
 736         p_area = p_input->stream.p_selected_area;
 737     }
 738
 739     /*
 740      * Chapter selection
 741      */
 742
 743     if( p_area->i_part != p_dvd->i_chapter )
 744     {
 745         if( ( p_area->i_part > 0 ) &&
 746             ( p_area->i_part <= p_area->i_part_nb ))
 747         {
 748             p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
 749             pgc_id = p_vts->vts_ptt_srpt->title[
 750                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 751             pgn = p_vts->vts_ptt_srpt->title[
 752                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 753
 754             p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 755
 756             p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 757             p_dvd->i_chapter = p_area->i_part;
 758             DvdReadFindCell( p_dvd );
 759
 760             p_dvd->i_pack_len = 0;
 761             p_dvd->i_next_vobu = p_dvd->i_cur_block =
 762                     p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 763         }
 764         else
 765         {
 766             p_area->i_part = p_dvd->i_chapter;
 767         }
 768     }
 769 #undef p_vts
 770 #undef p_vmg
 771
 772     if( p_area->i_angle != p_dvd->i_angle )
 773     {
 774         p_dvd->i_angle = p_area->i_angle;
 775
 776         intf_WarnMsg( 3, "dvd info: angle %d selected", p_area->i_angle );
 777     }
 778     /* warn interface that something has changed */
 779     p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
 780     p_input->stream.b_seekable = 1;
 781     p_input->stream.b_changed = 1;
 782
 783     return 0;
 784 }
 785
 786
 787 /*****************************************************************************
 788  * DvdReadRead: reads data packets into the netlist.
 789  *****************************************************************************
 790  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 791  * EOF.
 792  *****************************************************************************/
 793 static int DvdReadRead( input_thread_t * p_input,
 794                         data_packet_t ** pp_data )
 795 {
 796     thread_dvd_data_t *     p_dvd;
 797     u8                      p_data[DVD_VIDEO_LB_LEN];
 798     struct iovec            p_vec[DVD_BLOCK_READ_ONCE];
 799     u8 *                    pi_cur;
 800     int                     i_blocks;
 801     int                     i_read;
 802     int                     i_iovec;
 803     int                     i_packet_size;
 804     int                     i_packet;
 805     int                     i_pos;
 806     data_packet_t *         p_data_p;
 807     boolean_t               b_eot = 0;
 808
 809     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 810
 811     *pp_data = NULL;
 812
 813     /*
 814      * Playback by cell in this pgc, starting at the cell for our chapter.
 815      */
 816
 817     /*
 818      * End of pack, we select the following one
 819      */
 820     if( ! p_dvd->i_pack_len )
 821     {
 822         /*
 823          * Read NAV packet.
 824          */
 825         if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
 826                        1, p_data ) ) != 1 )
 827         {
 828             intf_ErrMsg( "dvdread error: read failed for block %d",
 829                          p_dvd->i_next_vobu );
 830             return -1;
 831         }
 832
 833         /* basic check to be sure we don't have a empty title
 834          * go to next title if so */
 835         assert( p_data[41] == 0xbf && p_data[1027] == 0xbf );
 836         if( p_data[41] == 0xbf && p_data[1027] == 0xbf )
 837         {
 838             /*
 839              * Parse the contained dsi packet.
 840              */
 841
 842             DvdReadHandleDSI( p_dvd, p_data );
 843
 844             /* End of File */
 845             if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
 846             {
 847                 return 1;
 848             }
 849
 850             assert( p_dvd->i_pack_len < 1024 );
 851             /* FIXME: Ugly kludge: we send the pack block to the input for it
 852              * sometimes has a zero scr and restart the sync */
 853             //p_dvd->i_cur_block ++;
 854             p_dvd->i_pack_len++;
 855         }
 856         else
 857         {
 858             b_eot = 1;
 859             p_dvd->i_pack_len = 0;
 860             return 1;
 861         }
 862     }
 863
 864     /*
 865      * Compute the number of blocks to read
 866      */
 867     i_blocks = p_dvd->i_pack_len >= DVD_BLOCK_READ_ONCE
 868              ? DVD_BLOCK_READ_ONCE : p_dvd->i_pack_len;
 869     p_dvd->i_pack_len -= i_blocks;
 870
 871     /* Get iovecs */
 872     *pp_data = p_data_p = input_BuffersToIO( p_input->p_method_data, p_vec,
 873                                              DVD_BLOCK_READ_ONCE );
 874
 875     if ( p_data_p == NULL )
 876     {
 877         return( -1 );
 878     }
 879
 880     /* Reads from DVD */
 881     i_read = DVDReadVBlocks( p_dvd->p_title, p_dvd->i_cur_block,
 882                              i_blocks, p_vec );
 883     if( i_read != i_blocks )
 884     {
 885         intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
 886                      i_read, i_blocks, p_dvd->i_cur_block );
 887         return -1;
 888     }
 889
 890     p_dvd->i_cur_block += i_read;
 891 /*
 892     intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
 893 */
 894     i_packet = 0;
 895
 896     /* Read headers to compute payload length */
 897     for( i_iovec = 0 ; i_iovec < i_read ; i_iovec++ )
 898     {
 899         data_packet_t * p_current = p_data_p;
 900         i_pos = 0;
 901
 902         while( i_pos < DVD_VIDEO_LB_LEN )
 903         {
 904             pi_cur = (u8*)p_vec[i_iovec].iov_base + i_pos;
 905
 906             /*default header */
 907             if( U32_AT( pi_cur ) != 0x1BA )
 908             {
 909                 /* That's the case for all packets, except pack header. */
 910                 i_packet_size = U16_AT( pi_cur + 4 );
 911             }
 912             else
 913             {
 914                 /* MPEG-2 Pack header. */
 915                 i_packet_size = 8;
 916             }
 917             if( i_pos != 0 )
 918             {
 919                 *pp_data = input_ShareBuffer( p_input->p_method_data,
 920                                               p_current );
 921             }
 922             else
 923             {
 924                 *pp_data = p_data_p;
 925                 p_data_p = p_data_p->p_next;
 926             }
 927
 928             (*pp_data)->p_payload_start = (*pp_data)->p_demux_start =
 929                     (*pp_data)->p_demux_start + i_pos;
 930
 931
 932             (*pp_data)->p_payload_end =
 933                     (*pp_data)->p_payload_start + i_packet_size + 6;
 934
 935 //            pp_packets[i_packet]->p_next = NULL;
 936 //            pp_packets[i_packet]->b_discard_payload = 0;
 937
 938             i_packet++;
 939             i_pos += i_packet_size + 6;
 940             pp_data = &(*pp_data)->p_next;
 941         }
 942     }
 943
 944     p_input->pf_delete_packet( p_input->p_method_data, p_data_p );
 945     *pp_data = NULL;
 946
 947     while( p_data_p != NULL )
 948     {
 949         data_packet_t * p_next = p_data_p->p_next;
 950         p_input->pf_delete_packet( p_input->p_method_data, p_data_p );
 951         p_data_p = p_next;
 952     }
 953
 954     vlc_mutex_lock( &p_input->stream.stream_lock );
 955
 956     p_input->stream.p_selected_area->i_tell =
 957         LB2OFF( p_dvd->i_cur_block ) -
 958             p_input->stream.p_selected_area->i_start;
 959
 960     if( p_dvd->b_eoc )
 961     {
 962         /* We modify i_part only at end of chapter not to erase
 963          * some modification from the interface */
 964         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 965         p_dvd->b_eoc = 0;
 966     }
 967
 968     if( p_input->stream.p_selected_area->i_tell
 969             >= p_input->stream.p_selected_area->i_size || b_eot )
 970     {
 971         if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
 972                         p_input->stream.i_area_nb )
 973         {
 974             /* EOF */
 975             vlc_mutex_unlock( &p_input->stream.stream_lock );
 976             return 1;
 977         }
 978
 979         /* EOT */
 980         intf_WarnMsg( 4, "dvd info: new title" );
 981         DvdReadSetArea( p_input, p_input->stream.pp_areas[
 982                         p_input->stream.p_selected_area->i_id+1] );
 983         vlc_mutex_unlock( &p_input->stream.stream_lock );
 984         return 0;
 985     }
 986
 987     vlc_mutex_unlock( &p_input->stream.stream_lock );
 988
 989     return 0;
 990 }
 991 #undef p_pgc
 992
 993 /*****************************************************************************
 994  * DVDRewind : reads a stream backward
 995  *****************************************************************************/
 996 static int DvdReadRewind( input_thread_t * p_input )
 997 {
 998     return( -1 );
 999 }
1000
1001 /*****************************************************************************
1002  * DvdReadSeek : Goes to a given position on the stream.
1003  *****************************************************************************
1004  * This one is used by the input and translate chronological position from
1005  * input to logical position on the device.
1006  * The lock should be taken before calling this function.
1007  *****************************************************************************/
1008 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
1009 {
1010     thread_dvd_data_t *     p_dvd;
1011     int                     i_lb;
1012     int                     i_tmp;
1013     int                     i_chapter = 0;
1014     int                     i_cell = 0;
1015     int                     i_vobu = 0;
1016     int                     i_sub_cell = 0;
1017
1018     i_off += p_input->stream.p_selected_area->i_start;
1019     i_lb = OFF2LB( i_off );
1020     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1021
1022     /* find cell */
1023     while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
1024     {
1025         i_cell++;
1026     }
1027
1028     /* find chapter */
1029     do
1030     {
1031         pgc_t *     p_pgc;
1032         int         pgc_id, pgn;
1033
1034         i_chapter++;
1035         pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1036                     p_dvd->i_ttn-1].ptt[i_chapter].pgcn;
1037         pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1038                     p_dvd->i_ttn-1].ptt[i_chapter].pgn;
1039
1040         p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1041         i_tmp = p_pgc->program_map[pgn-1];
1042
1043     } while( i_tmp <= i_cell );
1044
1045     /* find vobu */
1046     while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
1047             <= i_lb )
1048     {
1049         i_vobu++;
1050     }
1051
1052     /* find sub_cell */
1053     while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1054             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1055     {
1056         i_sub_cell++;
1057     }
1058
1059 /*
1060     intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
1061             i_cell, i_sub_cell,i_chapter, i_vobu,
1062             p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
1063             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
1064             p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
1065 */
1066     p_dvd->i_cur_block = i_lb;
1067     p_dvd->i_next_vobu =
1068         p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
1069     p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
1070     p_dvd->i_cur_cell = i_cell;
1071     p_dvd->i_chapter = i_chapter;
1072     DvdReadFindCell( p_dvd );
1073
1074     p_input->stream.p_selected_area->i_tell =
1075         LB2OFF ( p_dvd->i_cur_block )
1076          - p_input->stream.p_selected_area->i_start;
1077     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1078
1079     return;
1080 }
1081
1082 /*****************************************************************************
1083  * DvdReadHandleDSI
1084  *****************************************************************************/
1085 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
1086 {
1087     navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1088
1089     /*
1090      * Determine where we go next.  These values are the ones we mostly
1091      * care about.
1092      */
1093     p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1094
1095     /*
1096      * If we're not at the end of this cell, we can determine the next
1097      * VOBU to display using the VOBU_SRI information section of the
1098      * DSI.  Using this value correctly follows the current angle,
1099      * avoiding the doubled scenes in The Matrix, and makes our life
1100      * really happy.
1101      */
1102     if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1103     {
1104 #if 1
1105         switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1106         {
1107             case 0x4:
1108                 /* interleaved unit with no angle */
1109                 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1110                 {
1111                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1112                         p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1113                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1114                 }
1115                 else
1116                 {
1117                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1118                         p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1119                     p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1120                 }
1121                 break;
1122             case 0x5:
1123                 /* vobu is end of ilvu */
1124                 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1125                 {
1126                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1127                         p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1128                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1129
1130                     break;
1131                 }
1132             case 0x6:
1133                 /* vobu is beginning of ilvu */
1134             case 0x9:
1135                 /* next scr is 0 */
1136             case 0xa:
1137                 /* entering interleaved section */
1138             case 0x8:
1139                 /* non interleaved cells in interleaved section */
1140             default:
1141                 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1142                     ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1143                 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1144                 break;
1145         }
1146 #else
1147         p_dvd->i_next_vobu = p_dvd->i_cur_block +
1148             ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1149         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1150 #endif
1151     }
1152     else
1153     {
1154         p_dvd->i_cur_cell = p_dvd->i_next_cell;
1155         DvdReadFindCell( p_dvd );
1156
1157         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1158         p_dvd->i_next_vobu =
1159             p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1160     }
1161
1162 #if 0
1163     intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1164             p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1165             p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1166             p_dvd->dsi_pack.dsi_gi.vobu_ea,
1167             p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1168             p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1169
1170     intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1171             p_dvd->dsi_pack.sml_pbi.category,
1172             p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1173             p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1174             p_dvd->dsi_pack.sml_pbi.size );
1175
1176     intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1177             p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1178             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1179             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1180 #endif
1181 }
1182
1183 /*****************************************************************************
1184  * DvdReadFindCell
1185  *****************************************************************************/
1186 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1187 {
1188     int         pgc_id, pgn;
1189     int         i = 0;
1190     pgc_t *     p_pgc;
1191 #define cell p_dvd->p_cur_pgc->cell_playback
1192     if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1193     {
1194 #if 0
1195         p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1196         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1197 #else
1198         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1199
1200         while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1201         {
1202             i++;
1203         }
1204         p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1205 #endif
1206     }
1207     else
1208     {
1209         p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1210     }
1211 #undef cell
1212     pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1213                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter].pgcn;
1214     pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1215                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter].pgn;
1216     p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1217
1218     if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1219     {
1220         p_dvd->i_chapter++;
1221         p_dvd->b_eoc = 1;
1222     }
1223 }