1 /*****************************************************************************
2 * input_dvd.c: DVD raw reading plugin.
4 * This plugins should handle all the known specificities of the DVD format,
5 * especially the 2048 bytes logical block size.
7 * -input_netlist used to read packets
8 * -dvd_ifo for ifo parsing and analyse
9 * -dvd_css for unscrambling
10 * -dvd_udf to find files
11 *****************************************************************************
12 * Copyright (C) 1998-2001 VideoLAN
13 * $Id: input_dvd.c,v 1.28 2001/03/04 13:54:26 stef Exp $
15 * Author: Stéphane Borel <stef@via.ecp.fr>
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
30 *****************************************************************************/
32 /*****************************************************************************
34 *****************************************************************************/
38 #define MODULE_NAME dvd-css
40 #define MODULE_NAME dvd-nocss
42 #include "modules_inner.h"
47 #include <netinet/in.h>
50 #include <sys/types.h>
67 #include "stream_control.h"
68 #include "input_ext-intf.h"
69 #include "input_ext-dec.h"
73 #include "dvd_netlist.h"
76 #include "input_dvd.h"
77 #include "mpeg_system.h"
83 /*****************************************************************************
85 *****************************************************************************/
94 /* The ISO 639 language codes.
95 * Language names with * prefix are not spelled in their own language
97 { " ", "Not Specified" },
99 { "ab", "*Abkhazian" },
100 { "af", "*Afrikaans" },
101 { "am", "*Amharic" },
103 { "as", "*Assamese" },
105 { "az", "*Azerbaijani" },
106 { "ba", "*Bashkir" },
107 { "be", "*Byelorussian" },
108 { "bg", "*Bulgarian" },
110 { "bi", "*Bislama" },
111 { "bn", "*Bengali; Bangla" },
112 { "bo", "*Tibetan" },
114 { "ca", "*Catalan" },
115 { "co", "*Corsican" },
116 { "cs", "*Czech(Ceske)" },
120 { "dz", "*Bhutani" },
123 { "eo", "*Esperanto" },
125 { "et", "*Estonian" },
127 { "fa", "*Persian" },
130 { "fo", "*Faroese" },
131 { "fr", "Francais" },
132 { "fy", "*Frisian" },
134 { "gd", "*Scots Gaelic" },
135 { "gl", "*Galician" },
136 { "gn", "*Guarani" },
137 { "gu", "*Gujarati" },
139 { "he", "*Hebrew" }, /* formerly iw */
141 { "hr", "Hrvatski" }, /* Croatian */
143 { "hy", "*Armenian" },
144 { "ia", "*Interlingua" },
145 { "id", "*Indonesian" }, /* formerly in */
146 { "ie", "*Interlingue" },
147 { "ik", "*Inupiak" },
148 { "in", "*Indonesian" }, /* replaced by id */
149 { "is", "Islenska" },
150 { "it", "Italiano" },
151 { "iu", "*Inuktitut" },
152 { "iw", "*Hebrew" }, /* replaced by he */
153 { "ja", "*Japanese" },
154 { "ji", "*Yiddish" }, /* replaced by yi */
155 { "jw", "*Javanese" },
156 { "ka", "*Georgian" },
158 { "kl", "*Greenlandic" },
159 { "km", "*Cambodian" },
160 { "kn", "*Kannada" },
162 { "ks", "*Kashmiri" },
163 { "ku", "*Kurdish" },
164 { "ky", "*Kirghiz" },
166 { "ln", "*Lingala" },
167 { "lo", "*Laothian" },
168 { "lt", "*Lithuanian" },
169 { "lv", "*Latvian, Lettish" },
170 { "mg", "*Malagasy" },
172 { "mk", "*Macedonian" },
173 { "ml", "*Malayalam" },
174 { "mn", "*Mongolian" },
175 { "mo", "*Moldavian" },
176 { "mr", "*Marathi" },
178 { "mt", "*Maltese" },
179 { "my", "*Burmese" },
182 { "nl", "Nederlands" },
184 { "oc", "*Occitan" },
185 { "om", "*(Afan) Oromo" },
187 { "pa", "*Punjabi" },
189 { "ps", "*Pashto, Pushto" },
190 { "pt", "Portugues" },
191 { "qu", "*Quechua" },
192 { "rm", "*Rhaeto-Romance" },
193 { "rn", "*Kirundi" },
194 { "ro", "*Romanian" },
195 { "ru", "*Russian" },
196 { "rw", "*Kinyarwanda" },
197 { "sa", "*Sanskrit" },
200 { "sh", "*Serbo-Croatian" },
201 { "si", "*Sinhalese" },
203 { "sl", "*Slovenian" },
207 { "sq", "*Albanian" },
208 { "sr", "*Serbian" },
209 { "ss", "*Siswati" },
210 { "st", "*Sesotho" },
211 { "su", "*Sundanese" },
213 { "sw", "*Swahili" },
218 { "ti", "*Tigrinya" },
219 { "tk", "*Turkmen" },
220 { "tl", "*Tagalog" },
221 { "tn", "*Setswana" },
223 { "tr", "*Turkish" },
228 { "uk", "*Ukrainian" },
231 { "vi", "*Vietnamese" },
232 { "vo", "*Volapuk" },
235 { "yi", "*Yiddish" }, /* formerly ji */
238 { "zh", "*Chinese" },
243 /*****************************************************************************
245 *****************************************************************************/
246 static int DVDProbe ( probedata_t *p_data );
247 static int DVDCheckCSS ( struct input_thread_s * );
248 static int DVDRead ( struct input_thread_s *, data_packet_t ** );
249 static void DVDInit ( struct input_thread_s * );
250 static void DVDEnd ( struct input_thread_s * );
251 static void DVDSeek ( struct input_thread_s *, off_t );
252 static int DVDSetArea ( struct input_thread_s *, int, int, int, int );
253 static int DVDRewind ( struct input_thread_s * );
255 /*****************************************************************************
256 * Functions exported as capabilities. They are declared as static so that
257 * we don't pollute the namespace too much.
258 *****************************************************************************/
259 void _M( input_getfunctions )( function_list_t * p_function_list )
261 #define input p_function_list->functions.input
262 p_function_list->pf_probe = DVDProbe;
263 input.pf_init = DVDInit;
264 input.pf_open = input_FileOpen;
265 input.pf_close = input_FileClose;
266 input.pf_end = DVDEnd;
267 input.pf_read = DVDRead;
268 input.pf_set_area = DVDSetArea;
269 input.pf_demux = input_DemuxPS;
270 input.pf_new_packet = DVDNewPacket;
271 input.pf_new_pes = DVDNewPES;
272 input.pf_delete_packet = DVDDeletePacket;
273 input.pf_delete_pes = DVDDeletePES;
274 input.pf_rewind = DVDRewind;
275 input.pf_seek = DVDSeek;
280 * Local tools to decode some data in ifo
283 /*****************************************************************************
284 * Language: gives the long language name from the two-letters ISO-639 code
285 *****************************************************************************/
286 static char * Language( u16 i_code )
290 while( memcmp( lang_tbl[i].p_code, &i_code, 2 ) &&
291 lang_tbl[i].p_lang_long[0] )
296 return lang_tbl[i].p_lang_long;
300 * Data reading functions
303 /*****************************************************************************
304 * DVDProbe: verifies that the stream is a PS stream
305 *****************************************************************************/
306 static int DVDProbe( probedata_t *p_data )
308 input_thread_t * p_input = (input_thread_t *)p_data;
310 char * psz_name = p_input->p_source;
314 if( TestMethod( INPUT_METHOD_VAR, "dvd" ) )
320 #endif /* HAVE_CSS */
323 if( ( strlen(psz_name) > 4 ) && !strncasecmp( psz_name, "dvd:", 4 ) )
325 /* If the user specified "dvd:" then it's probably a DVD */
330 #endif /* HAVE_CSS */
334 i_handle = open( psz_name, 0 );
344 /*****************************************************************************
345 * DVDCheckCSS: check the stream
346 *****************************************************************************/
347 static int DVDCheckCSS( input_thread_t * p_input )
349 return CSSTest( p_input->i_handle );
353 /*****************************************************************************
354 * DVDFindSector: find cell index in adress map from index in
355 * information table program map and give corresponding sectors.
356 *****************************************************************************/
357 static int DVDFindSector( thread_dvd_data_t * p_dvd )
363 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
365 i_index = p_dvd->i_prg_cell - 1;
368 if( i_index++ > p_dvd->i_prg_cell )
373 i_cell = p_dvd->i_cell + 1;
375 while( ( ( p_pgc->p_cell_pos_inf[i_index].i_vob_id !=
376 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_vob_id ) ||
377 ( p_pgc->p_cell_pos_inf[i_index].i_cell_id !=
378 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_cell_id ) ) &&
379 ( i_cell < ( p_dvd->ifo.vts.c_adt.i_cell_nb ) ) )
384 } while( i_cell == ( p_dvd->ifo.vts.c_adt.i_cell_nb ) );
386 p_dvd->i_cell = i_cell;
387 p_dvd->i_prg_cell = i_index;
389 /* Find start and end sectors of new cell */
390 p_dvd->i_sector = MAX(
391 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_ssector,
392 p_pgc->p_cell_play_inf[i_index].i_entry_sector );
393 p_dvd->i_end_sector = MIN(
394 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_esector,
395 p_pgc->p_cell_play_inf[i_index].i_lsector );
397 //intf_WarnMsg( 3, "cell: %d index: %d sector1: %x sector2: %x end1: %x end2: %x", i_cell, i_index, p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_ssector, p_pgc->p_cell_play_inf[i_index].i_entry_sector, p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_esector,p_pgc->p_cell_play_inf[i_index].i_lsector );
402 /*****************************************************************************
403 * DVDChapterSelect: find the cell corresponding to requested chapter
404 * When called to find chapter 1, also sets title size and end.
405 *****************************************************************************/
406 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
410 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
412 /* Find cell index in Program chain for current chapter */
413 p_dvd->i_prg_cell = p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1;
416 /* Search for cell_index in cell adress_table */
417 DVDFindSector( p_dvd );
419 /* initialize navigation parameters */
420 p_dvd->i_sector = p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_ssector;
421 p_dvd->i_end_sector =
422 p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_esector;
424 /* start is : beginning of vts vobs + offset to vob x */
425 p_dvd->i_start = p_dvd->i_title_start +
426 DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
428 /* Position the fd pointer on the right address */
429 p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
431 p_dvd->i_chapter = i_chapter;
436 /*****************************************************************************
437 * DVDSetArea: initialize input data for title x, chapter y.
438 * It should be called for each user navigation request, and to change
439 * audio or sub-picture streams.
441 * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
442 * i_audio, i_spu start from 1 ; 0 means off.
443 * A negative value for an argument means it does not change
444 *****************************************************************************/
445 static int DVDSetArea( input_thread_t * p_input,
446 int i_title, int i_chapter,
447 int i_audio, int i_spu )
449 thread_dvd_data_t * p_dvd;
450 es_descriptor_t * p_es;
460 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
462 vlc_mutex_lock( &p_input->stream.stream_lock );
468 * We have to load all title information
471 /* Change the default area */
472 p_input->stream.p_selected_area = p_input->stream.pp_areas[i_title];
474 /* title number: it is not vts nb! */
475 p_dvd->i_title = i_title;
477 /* title position inside the selected vts */
479 p_dvd->ifo.vmg.ptt_srpt.p_tts[i_title-1].i_vts_ttn;
482 p_dvd->ifo.i_title = i_title;
485 IfoReadVTS( &(p_dvd->ifo) );
486 intf_WarnMsg( 2, "ifo info: vts initialized" );
488 /* css title key for current vts */
489 if( p_dvd->b_encrypted )
491 p_dvd->p_css->i_title =
492 p_dvd->ifo.vmg.ptt_srpt.p_tts[i_title-1].i_tts_nb;
493 p_dvd->p_css->i_title_pos =
494 p_dvd->ifo.vts.i_pos +
495 p_dvd->ifo.vts.mat.i_tt_vobs_ssector * DVD_LB_SIZE;
496 CSSGetKey( p_dvd->p_css );
497 intf_WarnMsg( 2, "css info: vts key initialized" );
501 * Set selected title start and size
504 /* title set offset */
505 p_dvd->i_title_start = p_dvd->ifo.vts.i_pos + DVD_LB_SIZE *
506 (off_t)( p_dvd->ifo.vts.mat.i_tt_vobs_ssector );
508 /* last video cell */
510 p_dvd->i_prg_cell = -1 +
511 p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc.i_cell_nb;
512 DVDFindSector( p_dvd );
514 p_dvd->i_size = DVD_LB_SIZE *
515 (off_t)( p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_esector );
517 DVDChapterSelect( p_dvd, 1 );
519 p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
521 lseek( p_input->i_handle, p_dvd->i_start, SEEK_SET );
524 intf_WarnMsg( 2, "dvd info: title: %d", i_title );
525 intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
526 intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
527 intf_WarnMsg( 2, "dvd info: number of chapters: %d",
528 p_dvd->ifo.vmg.ptt_srpt.p_tts[i_title-1].i_ptt_nb );
530 /* intf_WarnMsg( 3, "last: %d index: %d", i_last_chapter, i_index );*/
533 /* intf_WarnMsg( 3, "DVD: Cell: %d vob id: %d cell id: %d", i_end_cell, p_dvd->ifo.vts.c_adt.p_cell_inf[i_end_cell].i_vob_id, p_dvd->ifo.vts.c_adt.p_cell_inf[i_end_cell].i_cell_id );*/
535 /* Area definition */
536 p_input->stream.p_selected_area->i_start = p_dvd->i_start;
537 p_input->stream.p_selected_area->i_size = p_dvd->i_size;
540 * Destroy obsolete ES by reinitializing program 0
541 * and find all ES in title with ifo data
543 if( p_input->stream.pp_programs != NULL )
545 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
548 input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
552 /* ES 0 -> video MPEG2 */
553 p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
554 p_es->i_stream_id = 0xe0;
555 p_es->i_type = MPEG2_VIDEO_ES;
556 input_SelectES( p_input, p_es );
557 intf_WarnMsg( 1, "dvd info: video MPEG2 stream" );
559 /* Audio ES, in the order they appear in .ifo */
560 i_nb = p_dvd->ifo.vts.mat.i_audio_nb;
565 for( i = 1 ; i <= i_nb ; i++ )
569 fprintf( stderr, "Audio %d: %x %x %x %x %x %x %x\n", i,
570 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_num_channels,
571 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_coding_mode,
572 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_multichannel_extension,
573 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_type,
574 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_appl_mode,
575 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_foo,
576 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_bar );
579 switch( p_dvd->ifo.vts.mat.p_audio_atrt[i].i_coding_mode )
582 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
583 p_es = input_AddES( p_input,
584 p_input->stream.pp_programs[0], i_id, 0 );
585 p_es->i_stream_id = 0xbd;
586 p_es->i_type = AC3_AUDIO_ES;
588 strcpy( p_es->psz_desc, Language( hton16(
589 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code ) ) );
591 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
592 i, p_es->psz_desc, i_id );
596 case 0x03: /* MPEG audio */
598 p_es = input_AddES( p_input,
599 p_input->stream.pp_programs[0], i_id, 0 );
600 p_es->i_stream_id = i_id;
601 p_es->i_type = MPEG2_AUDIO_ES;
603 strcpy( p_es->psz_desc, Language( hton16(
604 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code ) ) );
606 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
607 i, p_es->psz_desc, i_id );
610 case 0x04: /* LPCM */
612 intf_ErrMsg( "dvd error: LPCM audio not handled yet" );
617 intf_ErrMsg( "dvd error: DTS audio not handled yet" );
621 intf_ErrMsg( "dvd error: unknown audio type %.2x",
622 p_dvd->ifo.vts.mat.p_audio_atrt[i].i_coding_mode );
628 i_nb = p_dvd->ifo.vts.mat.i_subpic_nb;
632 for( i = 1 ; i <= i_nb ; i++ )
636 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
637 p_es = input_AddES( p_input,
638 p_input->stream.pp_programs[0], i_id, 0 );
639 p_es->i_stream_id = 0xbd;
640 p_es->i_type = DVD_SPU_ES;
641 strcpy( p_es->psz_desc, Language( hton16(
642 p_dvd->ifo.vts.mat.p_subpic_atrt[i-1].i_lang_code ) ) );
643 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
644 i, p_es->psz_desc, i_id );
646 /* The before the last spu has a 0x0 prefix */
648 ( p_dvd->ifo.vts.mat.p_subpic_atrt[i].i_prefix == 0 );
655 * Select requested ES
657 if( ( i_audio >= 0 ) || ( i_title >= 0 ) )
660 /* Audio: we check it is in the range and
661 * default it to the first if not */
662 if( i_audio > p_dvd->ifo.vts.mat.i_audio_nb )
667 p_es = p_input->stream.pp_programs[0]->pp_es[i_audio];
669 /* We can only have one audio channel */
670 /* Look for a preselected one */
672 for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
674 if( p_input->stream.pp_selected_es[i]->b_audio )
684 if( p_input->stream.pp_selected_es[i_index] != p_es )
686 input_UnselectES( p_input,
687 p_input->stream.pp_selected_es[i_index] );
688 input_SelectES( p_input, p_es );
689 intf_WarnMsg( 1, "dvd info: audio %d selected -> %s (0x%x)",
690 i_audio, p_es->psz_desc, p_es->i_id );
695 input_SelectES( p_input, p_es );
696 intf_WarnMsg( 1, "dvd info: audio %d selected -> %s (0x%x)",
697 i_audio, p_es->psz_desc, p_es->i_id );
701 if( ( i_spu >= 0 ) || ( i_title >= 0 ) )
703 /* For spu: no one if none or a not existing one requested */
704 if( ( i_spu <= p_dvd->ifo.vts.mat.i_subpic_nb ) && ( i_spu > 0 ) )
706 input_SelectES( p_input, ( p_es = p_input->stream.pp_programs[0]->
707 pp_es[ i_spu + p_dvd->ifo.vts.mat.i_audio_nb ] ) );
709 intf_WarnMsg( 1, "dvd info: spu %d selected -> %s (0x%x)",
710 i_spu, p_es->psz_desc, p_es->i_id );
718 if( ( i_chapter > 0 ) &&
719 ( i_chapter <= p_input->stream.p_selected_area->i_part_nb ) )
721 DVDChapterSelect( p_dvd, i_chapter );
723 p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
724 p_input->stream.p_selected_area->i_start;
725 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
727 intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld", i_chapter,
728 p_input->stream.p_selected_area->i_tell );
731 /* No PSM to read in DVD mode, we already have all information */
732 p_input->stream.pp_programs[0]->b_is_ok = 1;
734 vlc_mutex_unlock( &p_input->stream.stream_lock );
739 /*****************************************************************************
740 * DVDInit: initializes DVD structures
741 *****************************************************************************/
742 static void DVDInit( input_thread_t * p_input )
744 thread_dvd_data_t * p_dvd;
751 if( (p_dvd = malloc( sizeof(thread_dvd_data_t) )) == NULL )
753 intf_ErrMsg( "Out of memory" );
754 p_input->b_error = 1;
758 p_input->p_plugin_data = (void *)p_dvd;
759 p_input->p_method_data = NULL;
761 p_dvd->i_fd = p_input->i_handle;
763 p_dvd->i_block_once = 1;
764 p_input->i_read_once = 8;
766 p_dvd->b_encrypted = DVDCheckCSS( p_input );
768 lseek( p_input->i_handle, 0, SEEK_SET );
770 /* Reading structures initialisation */
771 p_input->p_method_data =
772 DVDNetlistInit( 4096, 8192, 4096, DVD_LB_SIZE, p_dvd->i_block_once );
773 intf_WarnMsg( 2, "dvd info: netlist initialized" );
775 /* Ifo initialisation */
776 p_dvd->ifo = IfoInit( p_input->i_handle );
777 intf_WarnMsg( 2, "ifo info: vmg initialized" );
779 /* CSS initialisation */
780 if( p_dvd->b_encrypted )
782 p_dvd->p_css = CSSInit( p_input->i_handle );
784 if( p_dvd->p_css == NULL )
786 intf_ErrMsg( "css error: fatal failure" );
787 p_input->b_error = 1;
791 intf_WarnMsg( 2, "css info: initialized" );
794 /* Initialize ES structures */
795 input_InitStream( p_input, sizeof( stream_ps_data_t ) );
797 /* Set stream and area data */
798 vlc_mutex_lock( &p_input->stream.stream_lock );
800 #define srpt p_dvd->ifo.vmg.ptt_srpt
801 intf_WarnMsg( 2, "dvd info: number of titles: %d", srpt.i_ttu_nb );
803 #define area p_input->stream.pp_areas
804 /* We start from 1 here since area 0 is reserved for video_ts.vob */
805 for( i = 1 ; i <= srpt.i_ttu_nb ; i++ )
807 input_AddArea( p_input );
809 /* Should not be so simple eventually :
810 * are title Program Chains, or still something else ? */
813 /* Absolute start offset and size
814 * We can only set that with vts ifo, so we do it during the
815 * first call to DVDSetArea */
816 area[i]->i_start = 0;
819 /* Number of chapter */
820 area[i]->i_part_nb = srpt.p_tts[i-1].i_ptt_nb;
823 /* Offset to vts_i_0.ifo */
824 area[i]->i_plugin_data = p_dvd->ifo.i_off +
825 ( srpt.p_tts[i-1].i_ssector * DVD_LB_SIZE );
829 vlc_mutex_unlock( &p_input->stream.stream_lock );
831 /* Get requested title - if none try to find one where is the movie */
832 i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
833 if( i_title <= 0 || i_title > srpt.i_ttu_nb )
839 /* Get requested chapter - if none defaults to first one */
840 i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
846 /* For audio: first one if none or a not existing one specified */
847 i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
850 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
854 i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
856 DVDSetArea( p_input, i_title, i_chapter, i_audio, i_spu );
861 /*****************************************************************************
862 * DVDEnd: frees unused data
863 *****************************************************************************/
864 static void DVDEnd( input_thread_t * p_input )
866 thread_dvd_data_t * p_dvd;
867 dvd_netlist_t * p_netlist;
869 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
870 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
872 CSSEnd( p_dvd->p_css );
873 // IfoEnd( p_dvd->p_ifo ) );
875 DVDNetlistEnd( p_netlist );
878 /*****************************************************************************
879 * DVDRead: reads data packets into the netlist.
880 *****************************************************************************
881 * Returns -1 in case of error, 0 if everything went well, and 1 in case of
883 *****************************************************************************/
884 static int DVDRead( input_thread_t * p_input,
885 data_packet_t ** pp_packets )
887 thread_dvd_data_t * p_dvd;
888 dvd_netlist_t * p_netlist;
890 struct iovec * p_vec;
891 struct data_packet_s * pp_data[p_input->i_read_once];
903 p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
904 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
905 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
907 /* Get an iovec pointer */
908 if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
910 intf_ErrMsg( "DVD: read error" );
914 /* Get the position of the next cell if we're at cell end */
916 if( p_dvd->i_sector > p_dvd->i_end_sector )
918 /* Find cell index in adress map */
919 if( DVDFindSector( p_dvd ) < 0 )
921 pp_packets[0] = NULL;
925 /* Position the fd pointer on the right address */
926 i_off = lseek( p_dvd->i_fd,
927 p_dvd->i_title_start +
928 (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE,
934 while( p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1 <
940 p_dvd->i_chapter = i_chapter;
942 vlc_mutex_lock( &p_input->stream.stream_lock );
944 p_input->stream.p_selected_area->i_tell = i_off -
945 p_input->stream.p_selected_area->i_start;
946 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
948 vlc_mutex_unlock( &p_input->stream.stream_lock );
953 i_read_bytes = readv( p_dvd->i_fd, p_vec, p_dvd->i_block_once );
954 i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
956 /* Update netlist indexes */
957 DVDMviovec( p_netlist, i_read_blocks, pp_data );
959 /* Update global position */
960 p_dvd->i_sector += i_read_blocks;
964 /* Read headers to compute payload length */
965 for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
967 if( p_dvd->b_encrypted )
969 CSSDescrambleSector( p_dvd->p_css->pi_title_key,
970 p_vec[i_iovec].iov_base );
971 ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
976 while( i_pos < p_netlist->i_buffer_size )
978 pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
981 if( U32_AT( pi_cur ) != 0x1BA )
983 /* That's the case for all packets, except pack header. */
984 i_packet_size = U16_AT( pi_cur + 4 );
985 pp_packets[i_packet] = DVDNewPtr( p_netlist );
990 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
995 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1002 intf_ErrMsg( "Unable to determine stream type" );
1006 pp_packets[i_packet] = pp_data[i_iovec];
1010 (*pp_data[i_iovec]->pi_refcount)++;
1012 pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1014 pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1016 pp_packets[i_packet]->p_payload_start =
1017 pp_packets[i_packet]->p_buffer + i_pos;
1019 pp_packets[i_packet]->p_payload_end =
1020 pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1023 i_pos += i_packet_size + 6;
1027 pp_packets[i_packet] = NULL;
1029 vlc_mutex_lock( &p_input->stream.stream_lock );
1031 p_input->stream.p_selected_area->i_tell +=
1032 p_dvd->i_block_once *DVD_LB_SIZE;
1033 b_eof = p_input->stream.p_selected_area->i_tell < p_dvd->i_size ? 0 : 1;
1035 vlc_mutex_unlock( &p_input->stream.stream_lock );
1037 if( ( i_read_blocks == p_dvd->i_block_once ) && ( !b_eof ) )
1048 /*****************************************************************************
1049 * DVDRewind : reads a stream backward
1050 *****************************************************************************/
1051 static int DVDRewind( input_thread_t * p_input )
1056 /*****************************************************************************
1057 * DVDSeek : Goes to a given position on the stream ; this one is used by the
1058 * input and translate chronological position from input to logical postion
1061 * The lock should be taken before calling this function.
1062 *****************************************************************************/
1063 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1065 thread_dvd_data_t * p_dvd;
1072 p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1073 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
1075 /* update navigation data */
1076 p_dvd->i_sector = i_off >> 11;
1082 /* parse vobu address map to find program cell */
1083 while( p_pgc->p_cell_play_inf[i_prg_cell].i_lsector < p_dvd->i_sector )
1087 /* parse cell address map to find cell */
1088 while( p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_esector <=
1089 p_dvd->i_sector + 1 )
1094 p_dvd->i_prg_cell = i_prg_cell;
1095 p_dvd->i_cell = i_cell - 1; /* DVDFindSector will add one */
1097 /* check coherence of data */
1098 DVDFindSector( p_dvd );
1100 /* update chapter */
1101 while( p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1 < p_dvd->i_prg_cell )
1106 p_dvd->i_chapter = i_chapter;
1108 /* we have to take care of offset of beginning of title */
1109 i_pos = i_off + p_input->stream.p_selected_area->i_start;
1111 /* with DVD, we have to be on a sector boundary */
1112 i_pos = i_pos & (~0x7ff);
1114 i_pos = lseek( p_dvd->i_fd, i_pos, SEEK_SET );
1116 p_input->stream.p_selected_area->i_tell = i_pos -
1117 p_input->stream.p_selected_area->i_start;
1118 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;