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 1.15 2002/01/02 14:37:42 sam 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 /*****************************************************************************
  32  * Preamble
  33  *****************************************************************************/
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36
  37 #include <videolan/vlc.h>
  38
  39 #ifdef HAVE_UNISTD_H
  40 #   include <unistd.h>
  41 #endif
  42
  43 #include <fcntl.h>
  44 #include <sys/types.h>
  45 #include <string.h>
  46 #include <errno.h>
  47 #include <assert.h>
  48
  49 #ifdef STRNCASECMP_IN_STRINGS_H
  50 #   include <strings.h>
  51 #endif
  52
  53 #if defined( WIN32 )
  54 #   include <io.h>                                                 /* read() */
  55 #else
  56 #   include <sys/uio.h>                                      /* struct iovec */
  57 #endif
  58
  59 #if defined( WIN32 )
  60 #   include "input_iovec.h"
  61 #endif
  62
  63 #include "stream_control.h"
  64 #include "input_ext-intf.h"
  65 #include "input_ext-dec.h"
  66 #include "input_ext-plugins.h"
  67
  68 #include "input_dvdread.h"
  69
  70 #include "iso_lang.h"
  71
  72 #include "debug.h"
  73
  74 /* how many blocks DVDRead will read in each loop */
  75 #define DVD_BLOCK_READ_ONCE 64
  76
  77 /*****************************************************************************
  78  * Local prototypes
  79  *****************************************************************************/
  80 /* called from outside */
  81 static int  DvdReadProbe    ( probedata_t *p_data );
  82 static void DvdReadInit     ( struct input_thread_s * );
  83 static void DvdReadEnd      ( struct input_thread_s * );
  84 static void DvdReadOpen     ( struct input_thread_s * );
  85 static void DvdReadClose    ( struct input_thread_s * );
  86 static int  DvdReadSetArea  ( struct input_thread_s *, struct input_area_s * );
  87 static int  DvdReadSetProgram( struct input_thread_s *, pgrm_descriptor_t * );
  88 static int  DvdReadRead     ( struct input_thread_s *, data_packet_t ** );
  89 static void DvdReadSeek     ( struct input_thread_s *, off_t );
  90 static int  DvdReadRewind   ( struct input_thread_s * );
  91
  92 /* called only from here */
  93 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data );
  94 static void DvdReadFindCell ( thread_dvd_data_t * p_dvd );
  95
  96 /*****************************************************************************
  97  * Declare a buffer manager
  98  *****************************************************************************/
  99 #define FLAGS           BUFFERS_UNIQUE_SIZE
 100 #define NB_LIFO         1
 101 DECLARE_BUFFERS_SHARED( FLAGS, NB_LIFO );
 102 DECLARE_BUFFERS_INIT( FLAGS, NB_LIFO );
 103 DECLARE_BUFFERS_END_SHARED( FLAGS, NB_LIFO );
 104 DECLARE_BUFFERS_NEWPACKET_SHARED( FLAGS, NB_LIFO );
 105 DECLARE_BUFFERS_DELETEPACKET_SHARED( FLAGS, NB_LIFO, 1000 );
 106 DECLARE_BUFFERS_NEWPES( FLAGS, NB_LIFO );
 107 DECLARE_BUFFERS_DELETEPES( FLAGS, NB_LIFO, 1000 );
 108 DECLARE_BUFFERS_TOIO( FLAGS, DVD_VIDEO_LB_LEN );
 109 DECLARE_BUFFERS_SHAREBUFFER( FLAGS );
 110
 111 /*****************************************************************************
 112  * Functions exported as capabilities. They are declared as static so that
 113  * we don't pollute the namespace too much.
 114  *****************************************************************************/
 115 void _M( input_getfunctions )( function_list_t * p_function_list )
 116 {
 117 #define input p_function_list->functions.input
 118     p_function_list->pf_probe = DvdReadProbe;
 119     input.pf_init             = DvdReadInit;
 120     input.pf_open             = DvdReadOpen;
 121     input.pf_close            = DvdReadClose;
 122     input.pf_end              = DvdReadEnd;
 123     input.pf_init_bit_stream  = InitBitstream;
 124     input.pf_read             = DvdReadRead;
 125     input.pf_set_area         = DvdReadSetArea;
 126     input.pf_set_program      = DvdReadSetProgram;
 127     input.pf_demux            = input_DemuxPS;
 128     input.pf_new_packet       = input_NewPacket;
 129     input.pf_new_pes          = input_NewPES;
 130     input.pf_delete_packet    = input_DeletePacket;
 131     input.pf_delete_pes       = input_DeletePES;
 132     input.pf_rewind           = DvdReadRewind;
 133     input.pf_seek             = DvdReadSeek;
 134
 135 #undef input
 136 }
 137
 138 /*
 139  * Data reading functions
 140  */
 141
 142 /*****************************************************************************
 143  * DvdReadProbe: verifies that the stream is a PS stream
 144  *****************************************************************************/
 145 static int DvdReadProbe( probedata_t *p_data )
 146 {
 147     input_thread_t * p_input = (input_thread_t *)p_data;
 148
 149     char * psz_name = p_input->p_source;
 150     int i_score = 5;
 151
 152     if( ( strlen(psz_name) > 8 ) && !strncasecmp( psz_name, "dvdread:", 8 ) )
 153     {
 154         /* If the user specified "dvdread:" then he probably wants
 155          * to use libdvdread */
 156         i_score = 100;
 157         psz_name += 8;
 158     }
 159
 160     return( i_score );
 161 }
 162
 163 /*****************************************************************************
 164  * DvdReadInit: initializes DVD structures
 165  *****************************************************************************/
 166 static void DvdReadInit( input_thread_t * p_input )
 167 {
 168     thread_dvd_data_t *  p_dvd;
 169     input_area_t *       p_area;
 170     int                  i_title;
 171     int                  i_chapter;
 172     int                  i;
 173
 174     p_dvd = malloc( sizeof(thread_dvd_data_t) );
 175     if( p_dvd == NULL )
 176     {
 177         intf_ErrMsg( "dvdread error: out of memory" );
 178         p_input->b_error = 1;
 179         return;
 180     }
 181
 182     /* we take the pointer to dvd_reader_t back  */
 183     p_dvd->p_dvdread = (dvd_reader_t *)p_input->p_plugin_data;
 184     p_dvd->p_title = NULL;
 185     p_dvd->p_vts_file = NULL;
 186
 187     p_input->p_plugin_data = (void *)p_dvd;
 188
 189     if( (p_input->p_method_data = input_BuffersInit()) == NULL )
 190     {
 191         free( p_dvd );
 192         p_input->b_error = 1;
 193         return;
 194     }
 195
 196     /* We read DVD_BLOCK_READ_ONCE in each loop */
 197     p_dvd->i_block_once = DVD_BLOCK_READ_ONCE;
 198
 199     /* Ifo allocation & initialisation */
 200     if( ! ( p_dvd->p_vmg_file = ifoOpen( p_dvd->p_dvdread, 0 ) ) )
 201     {
 202         intf_ErrMsg( "dvdread error: can't open VMG info" );
 203         input_BuffersEnd( p_input->p_method_data );
 204         free( p_dvd );
 205         p_input->b_error = 1;
 206         return;
 207     }
 208     intf_WarnMsg( 2, "dvdread info: VMG opened" );
 209
 210     /* Set stream and area data */
 211     vlc_mutex_lock( &p_input->stream.stream_lock );
 212
 213     /* Initialize ES structures */
 214     input_InitStream( p_input, sizeof( stream_ps_data_t ) );
 215
 216     /* disc input method */
 217     p_input->stream.i_method = INPUT_METHOD_DVD;
 218
 219 #define tt_srpt p_dvd->p_vmg_file->tt_srpt
 220     intf_WarnMsg( 2, "dvdread info: number of titles: %d", tt_srpt->nr_of_srpts );
 221
 222 #define area p_input->stream.pp_areas
 223     /* We start from 1 here since the default area 0
 224      * is reserved for video_ts.vob */
 225     for( i = 1 ; i <= tt_srpt->nr_of_srpts ; i++ )
 226     {
 227         input_AddArea( p_input );
 228
 229         /* Titles are Program Chains */
 230         area[i]->i_id = i;
 231
 232         /* Absolute start offset and size
 233          * We can only set that with vts ifo, so we do it during the
 234          * first call to DVDSetArea */
 235         area[i]->i_start = 0;
 236         area[i]->i_size = 0;
 237
 238         /* Number of chapters */
 239         area[i]->i_part_nb = tt_srpt->title[i-1].nr_of_ptts;
 240         area[i]->i_part = 1;
 241
 242         /* Number of angles */
 243         area[i]->i_angle_nb = 0;
 244         area[i]->i_angle = 1;
 245
 246         area[i]->i_plugin_data = tt_srpt->title[i-1].title_set_nr;
 247     }
 248 #undef area
 249
 250     /* Get requested title - if none try the first title */
 251     i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
 252     if( i_title <= 0 || i_title > tt_srpt->nr_of_srpts )
 253     {
 254         i_title = 1;
 255     }
 256
 257 #undef tt_srpt
 258
 259     /* Get requested chapter - if none defaults to first one */
 260     i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
 261     if( i_chapter <= 0 )
 262     {
 263         i_chapter = 1;
 264     }
 265
 266     p_input->stream.pp_areas[i_title]->i_part = i_chapter;
 267
 268     p_area = p_input->stream.pp_areas[i_title];
 269
 270     /* set title, chapter, audio and subpic */
 271     DvdReadSetArea( p_input, p_area );
 272
 273     vlc_mutex_unlock( &p_input->stream.stream_lock );
 274
 275     return;
 276 }
 277
 278 /*****************************************************************************
 279  * DvdReadOpen: open libdvdread
 280  *****************************************************************************/
 281 static void DvdReadOpen( struct input_thread_s *p_input )
 282 {
 283     dvd_reader_t    *p_dvdread;
 284
 285     vlc_mutex_lock( &p_input->stream.stream_lock );
 286
 287     /* If we are here we can control the pace... */
 288     p_input->stream.b_pace_control = 1;
 289
 290     p_input->stream.b_seekable = 1;
 291     p_input->stream.p_selected_area->i_size = 0;
 292
 293     p_input->stream.p_selected_area->i_tell = 0;
 294
 295     vlc_mutex_unlock( &p_input->stream.stream_lock );
 296
 297     /* XXX: put this shit in an access plugin */
 298     if( strlen( p_input->p_source ) > 8
 299          && !strncasecmp( p_input->p_source, "dvdread:", 8 ) )
 300     {
 301         p_dvdread = DVDOpen( p_input->p_source + 8 );
 302     }
 303     else
 304     {
 305         p_dvdread = DVDOpen( p_input->p_source );
 306     }
 307
 308     if( ! p_dvdread )
 309     {
 310         p_input->b_error = 1;
 311         return;
 312     }
 313
 314     /* the vlc input doesn't handle the file descriptor with libdvdread */
 315     p_input->i_handle = -1;
 316
 317     /* p_dvdread is stored in p_plugin_data until we have
 318      * malloc'ed a dvd_thread_data_t */
 319     p_input->p_plugin_data = (void *) p_dvdread;
 320 }
 321
 322 /*****************************************************************************
 323  * DvdReadClose: close libdvdread
 324  *****************************************************************************/
 325 static void DvdReadClose( struct input_thread_s *p_input )
 326 {
 327     DVDClose( ((thread_dvd_data_t*)p_input->p_plugin_data)->p_dvdread );
 328     free( p_input->p_plugin_data );
 329     p_input->p_plugin_data = NULL;
 330
 331 }
 332
 333 /*****************************************************************************
 334  * DvdReadEnd: frees unused data
 335  *****************************************************************************/
 336 static void DvdReadEnd( input_thread_t * p_input )
 337 {
 338     thread_dvd_data_t *     p_dvd;
 339
 340     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 341
 342     /* close libdvdread */
 343     DVDCloseFile( p_dvd->p_title );
 344     ifoClose( p_dvd->p_vts_file );
 345     ifoClose( p_dvd->p_vmg_file );
 346
 347     input_BuffersEnd( p_input->p_method_data );
 348 }
 349
 350 /*****************************************************************************
 351  * DvdReadSetProgram: Does nothing, a DVD is mono-program
 352  *****************************************************************************/
 353 static int DvdReadSetProgram( input_thread_t * p_input,
 354                               pgrm_descriptor_t * p_program )
 355 {
 356     return 0;
 357 }
 358
 359 #define p_pgc         p_dvd->p_cur_pgc
 360
 361 /*****************************************************************************
 362  * DvdReadSetArea: initialize input data for title x, chapter y.
 363  * It should be called for each user navigation request.
 364  *****************************************************************************
 365  * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
 366  * Note that you have to take the lock before entering here.
 367  *****************************************************************************/
 368 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
 369 {
 370     thread_dvd_data_t *  p_dvd;
 371     int                  pgc_id = 0;
 372     int                  pgn = 0;
 373
 374     p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
 375
 376     /* we can't use the interface slider until initilization is complete */
 377     p_input->stream.b_seekable = 0;
 378
 379     if( p_area != p_input->stream.p_selected_area )
 380     {
 381         es_descriptor_t *    p_es;
 382         int                  i_cell = 0;
 383         int                  i_audio_nb = 0;
 384         int                  i_spu_nb = 0;
 385         int                  i;
 386
 387 #define p_vmg         p_dvd->p_vmg_file
 388 #define p_vts         p_dvd->p_vts_file
 389         if( p_dvd->p_title != NULL )
 390         {
 391             DVDCloseFile( p_dvd->p_title );
 392         }
 393
 394         if( p_vts != NULL )
 395         {
 396             ifoClose( p_vts );
 397         }
 398
 399         /* Reset the Chapter position of the old title */
 400         p_input->stream.p_selected_area->i_part = 1;
 401
 402         /*
 403          *  We have to load all title information
 404          */
 405         /* Change the default area */
 406         p_input->stream.p_selected_area = p_area;
 407
 408         intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
 409             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 410             p_area->i_id );
 411
 412         /* ifo vts */
 413         if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
 414                 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
 415         {
 416             intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
 417             ifoClose( p_vmg );
 418             DVDClose( p_dvd->p_dvdread );
 419             p_input->b_error = 1;
 420             return -1;
 421         }
 422
 423         /* title position inside the selected vts */
 424         p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
 425
 426         /*
 427          * Set selected title start
 428          */
 429         pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
 430         pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
 431         p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 432         i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 433
 434         p_area->i_start =
 435             LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
 436
 437         intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
 438                          p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
 439
 440         /*
 441          * Find title end
 442          */
 443         i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
 444
 445         p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
 446         p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
 447
 448         intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
 449                           p_area->i_start , p_area->i_size, p_dvd->i_end_block );
 450
 451         /*
 452          * Set properties for current chapter
 453          */
 454         /* Remeber current chapter */
 455         p_dvd->i_chapter = p_area->i_part;
 456         p_dvd->b_eoc = 0;
 457
 458         pgc_id = p_vts->vts_ptt_srpt->title[
 459                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 460         pgn = p_vts->vts_ptt_srpt->title[
 461                     p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 462
 463         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
 464         p_dvd->i_pack_len = 0;
 465         p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
 466         DvdReadFindCell( p_dvd );
 467
 468         p_dvd->i_next_vobu = p_dvd->i_cur_block =
 469             p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 470
 471         /*
 472          * Angle management
 473          */
 474         p_area->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
 475         p_area->i_angle = main_GetIntVariable( INPUT_ANGLE_VAR, 1 );
 476
 477         if( ( p_area->i_angle <= 0 ) || p_area->i_angle > p_area->i_angle_nb )
 478         {
 479             p_area->i_angle = 1;
 480         }
 481         p_dvd->i_angle = p_area->i_angle;
 482         p_dvd->i_angle_nb = p_area->i_angle_nb;
 483
 484         /*
 485          * We've got enough info, time to open the title set data.
 486          */
 487         if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
 488             p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
 489             DVD_READ_TITLE_VOBS ) ) )
 490         {
 491             intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
 492                          p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
 493             ifoClose( p_vts );
 494             ifoClose( p_vmg );
 495             DVDClose( p_dvd->p_dvdread );
 496             return -1;
 497         }
 498
 499 //        IfoPrintTitle( p_dvd );
 500
 501         /*
 502          * Destroy obsolete ES by reinitializing program 0
 503          * and find all ES in title with ifo data
 504          */
 505         if( p_input->stream.pp_programs != NULL )
 506         {
 507             /* We don't use input_EndStream here since
 508              * we keep area structures */
 509
 510             for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 511             {
 512                 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
 513             }
 514
 515             free( p_input->stream.pp_selected_es );
 516             input_DelProgram( p_input, p_input->stream.p_selected_program );
 517
 518             p_input->stream.pp_selected_es = NULL;
 519             p_input->stream.i_selected_es_number = 0;
 520         }
 521
 522         input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
 523         p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 524
 525         /* No PSM to read in DVD mode, we already have all information */
 526         p_input->stream.p_selected_program->b_is_ok = 1;
 527
 528         p_es = NULL;
 529
 530         /* ES 0 -> video MPEG2 */
 531 //        IfoPrintVideo( p_dvd );
 532
 533         p_es = input_AddES( p_input, p_input->stream.p_selected_program, 0xe0, 0 );
 534         p_es->i_stream_id = 0xe0;
 535         p_es->i_type = MPEG2_VIDEO_ES;
 536         p_es->i_cat = VIDEO_ES;
 537         if( p_main->b_video )
 538         {
 539             input_SelectES( p_input, p_es );
 540         }
 541
 542 #define audio_control \
 543     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 544         /* Audio ES, in the order they appear in .ifo */
 545         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
 546         {
 547             int i_position = 0;
 548             u16 i_id;
 549
 550 //            IfoPrintAudio( p_dvd, i );
 551
 552             /* audio channel is active if first byte is 0x80 */
 553             if( audio_control & 0x8000 )
 554             {
 555                 i_audio_nb++;
 556                 i_position = ( audio_control & 0x7F00 ) >> 8;
 557
 558             intf_WarnMsg( 12, "dvd audio position  %d", i_position );
 559                 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
 560                 {
 561                 case 0x00:              /* AC3 */
 562                     i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
 563                     p_es = input_AddES( p_input,
 564                                p_input->stream.p_selected_program, i_id, 0 );
 565                     p_es->i_stream_id = 0xbd;
 566                     p_es->i_type = AC3_AUDIO_ES;
 567                     p_es->b_audio = 1;
 568                     p_es->i_cat = AUDIO_ES;
 569                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 570                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 571                     strcat( p_es->psz_desc, " (ac3)" );
 572
 573                     break;
 574                 case 0x02:
 575                 case 0x03:              /* MPEG audio */
 576                     i_id = 0xc0 + i_position;
 577                     p_es = input_AddES( p_input,
 578                                     p_input->stream.p_selected_program, i_id, 0 );
 579                     p_es->i_stream_id = i_id;
 580                     p_es->i_type = MPEG2_AUDIO_ES;
 581                     p_es->b_audio = 1;
 582                     p_es->i_cat = AUDIO_ES;
 583                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 584                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 585                     strcat( p_es->psz_desc, " (mpeg)" );
 586
 587                     break;
 588                 case 0x04:              /* LPCM */
 589
 590                     i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
 591                     p_es = input_AddES( p_input,
 592                                     p_input->stream.p_selected_program, i_id, 0 );
 593                     p_es->i_stream_id = i_id;
 594                     p_es->i_type = LPCM_AUDIO_ES;
 595                     p_es->b_audio = 1;
 596                     p_es->i_cat = AUDIO_ES;
 597                     strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 598                         p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
 599                     strcat( p_es->psz_desc, " (lpcm)" );
 600
 601                     break;
 602                 case 0x06:              /* DTS */
 603                     i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
 604                     intf_ErrMsg( "dvd warning: DTS audio not handled yet"
 605                                  "(0x%x)", i_id );
 606                     break;
 607                 default:
 608                     i_id = 0;
 609                     intf_ErrMsg( "dvd warning: unknown audio type %.2x",
 610                              p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
 611                 }
 612             }
 613         }
 614 #undef audio_control
 615 #define spu_control \
 616     p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 617
 618         /* Sub Picture ES */
 619
 620         for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 621         {
 622             int i_position = 0;
 623             u16 i_id;
 624
 625 //            IfoPrintSpu( p_dvd, i );
 626             intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
 627
 628             if( spu_control & 0x80000000 )
 629             {
 630                 i_spu_nb++;
 631
 632                 /*  there are several streams for one spu */
 633                 if(  p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 634                 {
 635                     /* 16:9 */
 636                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 637                     {
 638                     case 1:
 639                         i_position = spu_control & 0xff;
 640                         break;
 641                     case 2:
 642                         i_position = ( spu_control >> 8 ) & 0xff;
 643                         break;
 644                     default:
 645                         i_position = ( spu_control >> 16 ) & 0xff;
 646                         break;
 647                     }
 648                 }
 649                 else
 650                 {
 651                     /* 4:3 */
 652                     i_position = ( spu_control >> 24 ) & 0x7F;
 653                 }
 654
 655                 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
 656                 p_es = input_AddES( p_input,
 657                                     p_input->stream.p_selected_program, i_id, 0 );
 658                 p_es->i_stream_id = 0xbd;
 659                 p_es->i_type = DVD_SPU_ES;
 660                 p_es->i_cat = SPU_ES;
 661                 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
 662                     p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) ) );
 663             }
 664         }
 665 #undef spu_control
 666         if( p_main->b_audio )
 667         {
 668             /* For audio: first one if none or a not existing one specified */
 669             int i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
 670             if( i_audio < 0 || i_audio > i_audio_nb )
 671             {
 672                 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
 673                 i_audio = 1;
 674             }
 675             if( i_audio > 0 && i_audio_nb > 0 )
 676             {
 677                 if( main_GetIntVariable( AOUT_SPDIF_VAR, 0 ) ||
 678                     ( main_GetIntVariable( INPUT_AUDIO_VAR, 0 ) ==
 679                       REQUESTED_AC3 ) )
 680                 {
 681                     int     i_ac3 = i_audio;
 682                     while( ( p_input->stream.pp_es[i_ac3]->i_type !=
 683                              AC3_AUDIO_ES ) && ( i_ac3 <=
 684                              p_vts->vtsi_mat->nr_of_vts_audio_streams ) )
 685                     {
 686                         i_ac3++;
 687                     }
 688                     if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
 689                     {
 690                         input_SelectES( p_input,
 691                                         p_input->stream.pp_es[i_ac3] );
 692                     }
 693                 }
 694                 else
 695                 {
 696                     input_SelectES( p_input,
 697                                     p_input->stream.pp_es[i_audio] );
 698                 }
 699             }
 700         }
 701
 702         if( p_main->b_video )
 703         {
 704             /* for spu, default is none */
 705             int i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
 706             if( i_spu < 0 || i_spu > i_spu_nb )
 707             {
 708                 main_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
 709                 i_spu = 0;
 710             }
 711             if( i_spu > 0 && i_spu_nb > 0 )
 712             {
 713                 i_spu += p_vts->vtsi_mat->nr_of_vts_audio_streams;
 714                 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
 715             }
 716         }
 717     } /* i_title >= 0 */
 718     else
 719     {
 720         p_area = p_input->stream.p_selected_area;
 721     }
 722
 723     /*
 724      * Chapter selection
 725      */
 726
 727     if( p_area->i_part != p_dvd->i_chapter )
 728     {
 729         if( ( p_area->i_part > 0 ) &&
 730             ( p_area->i_part <= p_area->i_part_nb ))
 731         {
 732             p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
 733             pgc_id = p_vts->vts_ptt_srpt->title[
 734                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
 735             pgn = p_vts->vts_ptt_srpt->title[
 736                         p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
 737
 738             p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
 739
 740             p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
 741             p_dvd->i_chapter = p_area->i_part;
 742             DvdReadFindCell( p_dvd );
 743
 744             p_dvd->i_pack_len = 0;
 745             p_dvd->i_next_vobu = p_dvd->i_cur_block =
 746                     p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
 747         }
 748         else
 749         {
 750             p_area->i_part = p_dvd->i_chapter;
 751         }
 752     }
 753 #undef p_vts
 754 #undef p_vmg
 755
 756     if( p_area->i_angle != p_dvd->i_angle )
 757     {
 758         p_dvd->i_angle = p_area->i_angle;
 759
 760         intf_WarnMsg( 3, "dvd info: angle %d selected", p_area->i_angle );
 761     }
 762     /* warn interface that something has changed */
 763     p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
 764     p_input->stream.b_seekable = 1;
 765     p_input->stream.b_changed = 1;
 766
 767     return 0;
 768 }
 769
 770
 771 /*****************************************************************************
 772  * DvdReadRead: reads data packets into the netlist.
 773  *****************************************************************************
 774  * Returns -1 in case of error, 0 if everything went well, and 1 in case of
 775  * EOF.
 776  *****************************************************************************/
 777 static int DvdReadRead( input_thread_t * p_input,
 778                         data_packet_t ** pp_data )
 779 {
 780     thread_dvd_data_t *     p_dvd;
 781     u8                      p_data[DVD_VIDEO_LB_LEN];
 782     struct iovec            p_vec[DVD_BLOCK_READ_ONCE];
 783     u8 *                    pi_cur;
 784     int                     i_blocks;
 785     int                     i_read;
 786     int                     i_iovec;
 787     int                     i_packet_size;
 788     int                     i_packet;
 789     int                     i_pos;
 790     data_packet_t *         p_data_p;
 791     boolean_t               b_eot = 0;
 792
 793     p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
 794
 795     *pp_data = NULL;
 796
 797     /*
 798      * Playback by cell in this pgc, starting at the cell for our chapter.
 799      */
 800
 801     /*
 802      * End of pack, we select the following one
 803      */
 804     if( ! p_dvd->i_pack_len )
 805     {
 806         /*
 807          * Read NAV packet.
 808          */
 809         if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
 810                        1, p_data ) ) != 1 )
 811         {
 812             intf_ErrMsg( "dvdread error: read failed for block %d",
 813                          p_dvd->i_next_vobu );
 814             return -1;
 815         }
 816
 817         /* basic check to be sure we don't have a empty title
 818          * go to next title if so */
 819         assert( p_data[41] == 0xbf && p_data[1027] == 0xbf );
 820         if( p_data[41] == 0xbf && p_data[1027] == 0xbf )
 821         {
 822             /*
 823              * Parse the contained dsi packet.
 824              */
 825
 826             DvdReadHandleDSI( p_dvd, p_data );
 827
 828             /* End of File */
 829             if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
 830             {
 831                 return 1;
 832             }
 833
 834             assert( p_dvd->i_pack_len < 1024 );
 835             /* FIXME: Ugly kludge: we send the pack block to the input for it
 836              * sometimes has a zero scr and restart the sync */
 837             //p_dvd->i_cur_block ++;
 838             p_dvd->i_pack_len++;
 839         }
 840         else
 841         {
 842             b_eot = 1;
 843             p_dvd->i_pack_len = 0;
 844             return 1;
 845         }
 846     }
 847
 848     /*
 849      * Compute the number of blocks to read
 850      */
 851     i_blocks = p_dvd->i_pack_len >= DVD_BLOCK_READ_ONCE
 852              ? DVD_BLOCK_READ_ONCE : p_dvd->i_pack_len;
 853     p_dvd->i_pack_len -= i_blocks;
 854
 855     /* Get iovecs */
 856     *pp_data = p_data_p = input_BuffersToIO( p_input->p_method_data, p_vec,
 857                                              DVD_BLOCK_READ_ONCE );
 858
 859     if ( p_data_p == NULL )
 860     {
 861         return( -1 );
 862     }
 863
 864     /* Reads from DVD */
 865     i_read = DVDReadVBlocks( p_dvd->p_title, p_dvd->i_cur_block,
 866                              i_blocks, p_vec );
 867     if( i_read != i_blocks )
 868     {
 869         intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
 870                      i_read, i_blocks, p_dvd->i_cur_block );
 871         return -1;
 872     }
 873
 874     p_dvd->i_cur_block += i_read;
 875 /*
 876     intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
 877 */
 878     i_packet = 0;
 879
 880     /* Read headers to compute payload length */
 881     for( i_iovec = 0 ; i_iovec < i_read ; i_iovec++ )
 882     {
 883         data_packet_t * p_current = p_data_p;
 884         i_pos = 0;
 885
 886         while( i_pos < DVD_VIDEO_LB_LEN )
 887         {
 888             pi_cur = (u8*)p_vec[i_iovec].iov_base + i_pos;
 889
 890             /*default header */
 891             if( U32_AT( pi_cur ) != 0x1BA )
 892             {
 893                 /* That's the case for all packets, except pack header. */
 894                 i_packet_size = U16_AT( pi_cur + 4 );
 895             }
 896             else
 897             {
 898                 /* MPEG-2 Pack header. */
 899                 i_packet_size = 8;
 900             }
 901             if( i_pos != 0 )
 902             {
 903                 *pp_data = input_ShareBuffer( p_input->p_method_data,
 904                                               p_current );
 905             }
 906             else
 907             {
 908                 *pp_data = p_data_p;
 909                 p_data_p = p_data_p->p_next;
 910             }
 911
 912             (*pp_data)->p_payload_start = (*pp_data)->p_demux_start =
 913                     (*pp_data)->p_demux_start + i_pos;
 914
 915
 916             (*pp_data)->p_payload_end =
 917                     (*pp_data)->p_payload_start + i_packet_size + 6;
 918
 919 //            pp_packets[i_packet]->p_next = NULL;
 920 //            pp_packets[i_packet]->b_discard_payload = 0;
 921
 922             i_packet++;
 923             i_pos += i_packet_size + 6;
 924             pp_data = &(*pp_data)->p_next;
 925         }
 926     }
 927
 928     p_input->pf_delete_packet( p_input->p_method_data, p_data_p );
 929     *pp_data = NULL;
 930
 931     while( p_data_p != NULL )
 932     {
 933         data_packet_t * p_next = p_data_p->p_next;
 934         p_input->pf_delete_packet( p_input->p_method_data, p_data_p );
 935         p_data_p = p_next;
 936     }
 937
 938     vlc_mutex_lock( &p_input->stream.stream_lock );
 939
 940     p_input->stream.p_selected_area->i_tell =
 941         LB2OFF( p_dvd->i_cur_block ) -
 942             p_input->stream.p_selected_area->i_start;
 943
 944     if( p_dvd->b_eoc )
 945     {
 946         /* We modify i_part only at end of chapter not to erase
 947          * some modification from the interface */
 948         p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
 949         p_dvd->b_eoc = 0;
 950     }
 951
 952     if( p_input->stream.p_selected_area->i_tell
 953             >= p_input->stream.p_selected_area->i_size || b_eot )
 954     {
 955         if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
 956                         p_input->stream.i_area_nb )
 957         {
 958             /* EOF */
 959             vlc_mutex_unlock( &p_input->stream.stream_lock );
 960             return 1;
 961         }
 962
 963         /* EOT */
 964         intf_WarnMsg( 4, "dvd info: new title" );
 965         DvdReadSetArea( p_input, p_input->stream.pp_areas[
 966                         p_input->stream.p_selected_area->i_id+1] );
 967         vlc_mutex_unlock( &p_input->stream.stream_lock );
 968         return 0;
 969     }
 970
 971     vlc_mutex_unlock( &p_input->stream.stream_lock );
 972
 973     return 0;
 974 }
 975 #undef p_pgc
 976
 977 /*****************************************************************************
 978  * DVDRewind : reads a stream backward
 979  *****************************************************************************/
 980 static int DvdReadRewind( input_thread_t * p_input )
 981 {
 982     return( -1 );
 983 }
 984
 985 /*****************************************************************************
 986  * DvdReadSeek : Goes to a given position on the stream.
 987  *****************************************************************************
 988  * This one is used by the input and translate chronological position from
 989  * input to logical position on the device.
 990  * The lock should be taken before calling this function.
 991  *****************************************************************************/
 992 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
 993 {
 994     thread_dvd_data_t *     p_dvd;
 995     int                     i_lb;
 996     int                     i_tmp;
 997     int                     i_chapter = 0;
 998     int                     i_cell = 0;
 999     int                     i_vobu = 0;
1000     int                     i_sub_cell = 0;
1001
1002     i_off += p_input->stream.p_selected_area->i_start;
1003     i_lb = OFF2LB( i_off );
1004     p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1005
1006     /* find cell */
1007     while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
1008     {
1009         i_cell++;
1010     }
1011
1012     /* find chapter */
1013     do
1014     {
1015         pgc_t *     p_pgc;
1016         int         pgc_id, pgn;
1017
1018         i_chapter++;
1019         pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1020                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgcn;
1021         pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1022                     p_dvd->i_ttn-1].ptt[i_chapter-1].pgn;
1023
1024         p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1025         i_tmp = p_pgc->program_map[pgn-1];
1026
1027     } while( i_tmp <= i_cell );
1028
1029     /* find vobu */
1030     while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
1031             <= i_lb )
1032     {
1033         i_vobu++;
1034     }
1035
1036     /* find sub_cell */
1037     while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1038             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1039     {
1040         i_sub_cell++;
1041     }
1042
1043 /*
1044     intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
1045             i_cell, i_sub_cell,i_chapter, i_vobu,
1046             p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
1047             p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
1048             p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
1049 */
1050     p_dvd->i_cur_block = i_lb;
1051     p_dvd->i_next_vobu =
1052         p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
1053     p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
1054     p_dvd->i_cur_cell = i_cell;
1055     p_dvd->i_chapter = i_chapter;
1056     DvdReadFindCell( p_dvd );
1057
1058     p_input->stream.p_selected_area->i_tell =
1059         LB2OFF ( p_dvd->i_cur_block )
1060          - p_input->stream.p_selected_area->i_start;
1061     p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1062
1063     return;
1064 }
1065
1066 /*****************************************************************************
1067  * DvdReadHandleDSI
1068  *****************************************************************************/
1069 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
1070 {
1071     navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1072
1073     /*
1074      * Determine where we go next.  These values are the ones we mostly
1075      * care about.
1076      */
1077     p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1078
1079     /*
1080      * If we're not at the end of this cell, we can determine the next
1081      * VOBU to display using the VOBU_SRI information section of the
1082      * DSI.  Using this value correctly follows the current angle,
1083      * avoiding the doubled scenes in The Matrix, and makes our life
1084      * really happy.
1085      */
1086     if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1087     {
1088 #if 1
1089         switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1090         {
1091             case 0x4:
1092                 /* interleaved unit with no angle */
1093                 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1094                 {
1095                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1096                         p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1097                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1098                 }
1099                 else
1100                 {
1101                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1102                         p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1103                     p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1104                 }
1105                 break;
1106             case 0x5:
1107                 /* vobu is end of ilvu */
1108                 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1109                 {
1110                     p_dvd->i_next_vobu = p_dvd->i_cur_block +
1111                         p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1112                     p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1113
1114                     break;
1115                 }
1116             case 0x6:
1117                 /* vobu is beginning of ilvu */
1118             case 0x9:
1119                 /* next scr is 0 */
1120             case 0xa:
1121                 /* entering interleaved section */
1122             case 0x8:
1123                 /* non interleaved cells in interleaved section */
1124             default:
1125                 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1126                     ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1127                 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1128                 break;
1129         }
1130 #else
1131         p_dvd->i_next_vobu = p_dvd->i_cur_block +
1132             ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1133         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1134 #endif
1135     }
1136     else
1137     {
1138         p_dvd->i_cur_cell = p_dvd->i_next_cell;
1139         DvdReadFindCell( p_dvd );
1140
1141         p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1142         p_dvd->i_next_vobu =
1143             p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1144     }
1145
1146 #if 0
1147     intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1148             p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1149             p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1150             p_dvd->dsi_pack.dsi_gi.vobu_ea,
1151             p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1152             p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1153
1154     intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1155             p_dvd->dsi_pack.sml_pbi.category,
1156             p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1157             p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1158             p_dvd->dsi_pack.sml_pbi.size );
1159
1160     intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1161             p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1162             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1163             p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1164 #endif
1165 }
1166
1167 /*****************************************************************************
1168  * DvdReadFindCell
1169  *****************************************************************************/
1170 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1171 {
1172     int         pgc_id, pgn;
1173     int         i = 0;
1174     pgc_t *     p_pgc;
1175 #define cell p_dvd->p_cur_pgc->cell_playback
1176     if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1177     {
1178 #if 0
1179         p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1180         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1181 #else
1182         p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1183
1184         while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1185         {
1186             i++;
1187         }
1188         p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1189 #endif
1190     }
1191     else
1192     {
1193         p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1194     }
1195 #undef cell
1196     pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1197                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgcn;
1198     pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1199                 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgn;
1200     p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1201
1202     if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1203     {
1204         p_dvd->i_chapter++;
1205         p_dvd->b_eoc = 1;
1206     }
1207 }