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 1.40 2001/04/08 16:57:47 sam 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>
66 #include "stream_control.h"
67 #include "input_ext-intf.h"
68 #include "input_ext-dec.h"
72 #include "dvd_netlist.h"
75 #include "input_dvd.h"
76 #include "mpeg_system.h"
82 /*****************************************************************************
84 *****************************************************************************/
93 /* The ISO 639 language codes.
94 * Language names with * prefix are not spelled in their own language
96 { " ", "Not Specified" },
98 { "ab", "*Abkhazian" },
99 { "af", "*Afrikaans" },
100 { "am", "*Amharic" },
102 { "as", "*Assamese" },
104 { "az", "*Azerbaijani" },
105 { "ba", "*Bashkir" },
106 { "be", "*Byelorussian" },
107 { "bg", "*Bulgarian" },
109 { "bi", "*Bislama" },
110 { "bn", "*Bengali; Bangla" },
111 { "bo", "*Tibetan" },
113 { "ca", "*Catalan" },
114 { "co", "*Corsican" },
115 { "cs", "*Czech(Ceske)" },
119 { "dz", "*Bhutani" },
122 { "eo", "*Esperanto" },
124 { "et", "*Estonian" },
126 { "fa", "*Persian" },
129 { "fo", "*Faroese" },
130 { "fr", "Francais" },
131 { "fy", "*Frisian" },
133 { "gd", "*Scots Gaelic" },
134 { "gl", "*Galician" },
135 { "gn", "*Guarani" },
136 { "gu", "*Gujarati" },
138 { "he", "*Hebrew" }, /* formerly iw */
140 { "hr", "Hrvatski" }, /* Croatian */
142 { "hy", "*Armenian" },
143 { "ia", "*Interlingua" },
144 { "id", "*Indonesian" }, /* formerly in */
145 { "ie", "*Interlingue" },
146 { "ik", "*Inupiak" },
147 { "in", "*Indonesian" }, /* replaced by id */
148 { "is", "Islenska" },
149 { "it", "Italiano" },
150 { "iu", "*Inuktitut" },
151 { "iw", "*Hebrew" }, /* replaced by he */
152 { "ja", "*Japanese" },
153 { "ji", "*Yiddish" }, /* replaced by yi */
154 { "jw", "*Javanese" },
155 { "ka", "*Georgian" },
157 { "kl", "*Greenlandic" },
158 { "km", "*Cambodian" },
159 { "kn", "*Kannada" },
161 { "ks", "*Kashmiri" },
162 { "ku", "*Kurdish" },
163 { "ky", "*Kirghiz" },
165 { "ln", "*Lingala" },
166 { "lo", "*Laothian" },
167 { "lt", "*Lithuanian" },
168 { "lv", "*Latvian, Lettish" },
169 { "mg", "*Malagasy" },
171 { "mk", "*Macedonian" },
172 { "ml", "*Malayalam" },
173 { "mn", "*Mongolian" },
174 { "mo", "*Moldavian" },
175 { "mr", "*Marathi" },
177 { "mt", "*Maltese" },
178 { "my", "*Burmese" },
181 { "nl", "Nederlands" },
183 { "oc", "*Occitan" },
184 { "om", "*(Afan) Oromo" },
186 { "pa", "*Punjabi" },
188 { "ps", "*Pashto, Pushto" },
189 { "pt", "Portugues" },
190 { "qu", "*Quechua" },
191 { "rm", "*Rhaeto-Romance" },
192 { "rn", "*Kirundi" },
193 { "ro", "*Romanian" },
194 { "ru", "*Russian" },
195 { "rw", "*Kinyarwanda" },
196 { "sa", "*Sanskrit" },
199 { "sh", "*Serbo-Croatian" },
200 { "si", "*Sinhalese" },
202 { "sl", "*Slovenian" },
206 { "sq", "*Albanian" },
207 { "sr", "*Serbian" },
208 { "ss", "*Siswati" },
209 { "st", "*Sesotho" },
210 { "su", "*Sundanese" },
212 { "sw", "*Swahili" },
217 { "ti", "*Tigrinya" },
218 { "tk", "*Turkmen" },
219 { "tl", "*Tagalog" },
220 { "tn", "*Setswana" },
222 { "tr", "*Turkish" },
227 { "uk", "*Ukrainian" },
230 { "vi", "*Vietnamese" },
231 { "vo", "*Volapuk" },
234 { "yi", "*Yiddish" }, /* formerly ji */
237 { "zh", "*Chinese" },
242 /*****************************************************************************
244 *****************************************************************************/
245 static int DVDProbe ( probedata_t *p_data );
246 static int DVDRead ( struct input_thread_s *, data_packet_t ** );
247 static void DVDInit ( struct input_thread_s * );
248 static void DVDEnd ( struct input_thread_s * );
249 static void DVDSeek ( struct input_thread_s *, off_t );
250 static int DVDSetArea ( struct input_thread_s *, struct input_area_s * );
251 static int DVDRewind ( struct input_thread_s * );
253 /*****************************************************************************
254 * Functions exported as capabilities. They are declared as static so that
255 * we don't pollute the namespace too much.
256 *****************************************************************************/
257 void _M( input_getfunctions )( function_list_t * p_function_list )
259 #define input p_function_list->functions.input
260 p_function_list->pf_probe = DVDProbe;
261 input.pf_init = DVDInit;
262 input.pf_open = input_FileOpen;
263 input.pf_close = input_FileClose;
264 input.pf_end = DVDEnd;
265 input.pf_read = DVDRead;
266 input.pf_set_area = DVDSetArea;
267 input.pf_demux = input_DemuxPS;
268 input.pf_new_packet = DVDNewPacket;
269 input.pf_new_pes = DVDNewPES;
270 input.pf_delete_packet = DVDDeletePacket;
271 input.pf_delete_pes = DVDDeletePES;
272 input.pf_rewind = DVDRewind;
273 input.pf_seek = DVDSeek;
278 * Local tools to decode some data in ifo
281 /*****************************************************************************
282 * Language: gives the long language name from the two-letters ISO-639 code
283 *****************************************************************************/
284 static char * Language( u16 i_code )
288 while( memcmp( lang_tbl[i].p_code, &i_code, 2 ) &&
289 lang_tbl[i].p_lang_long[0] )
294 return lang_tbl[i].p_lang_long;
298 * Data reading functions
301 /*****************************************************************************
302 * DVDProbe: verifies that the stream is a PS stream
303 *****************************************************************************/
304 static int DVDProbe( probedata_t *p_data )
306 input_thread_t * p_input = (input_thread_t *)p_data;
308 char * psz_name = p_input->p_source;
312 if( TestMethod( INPUT_METHOD_VAR, "dvd" ) )
318 #endif /* HAVE_CSS */
321 if( ( strlen(psz_name) > 4 ) && !strncasecmp( psz_name, "dvd:", 4 ) )
323 /* If the user specified "dvd:" then it's probably a DVD */
328 #endif /* HAVE_CSS */
332 i_handle = open( psz_name, 0 );
342 /*****************************************************************************
343 * DVDFindCell: adjust the title cell index with the program cell
344 *****************************************************************************/
345 static int DVDFindCell( thread_dvd_data_t * p_dvd )
351 p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
352 #define cell p_dvd->p_ifo->vts.cell_inf
354 i_cell = p_dvd->i_cell;
355 i_index = p_dvd->i_prg_cell;
357 while( ( ( title.p_cell_pos[i_index].i_vob_id !=
358 cell.p_cell_map[i_cell].i_vob_id ) ||
359 ( title.p_cell_pos[i_index].i_cell_id !=
360 cell.p_cell_map[i_cell].i_cell_id ) ) &&
361 ( i_cell < cell.i_cell_nb ) )
366 if( i_cell == cell.i_cell_nb )
368 intf_ErrMsg( "dvd error: can't find cell" );
373 p_dvd->i_cell = i_cell;
380 /*****************************************************************************
381 * DVDFindSector: find cell index in adress map from index in
382 * information table program map and give corresponding sectors.
383 *****************************************************************************/
384 static int DVDFindSector( thread_dvd_data_t * p_dvd )
387 p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
389 if( p_dvd->i_sector > title.p_cell_play[p_dvd->i_prg_cell].i_end_sector )
394 if( DVDFindCell( p_dvd ) < 0 )
396 intf_ErrMsg( "dvd error: can't find sector" );
400 /* Find start and end sectors of new cell */
401 p_dvd->i_sector = MAX(
402 p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_start_sector,
403 title.p_cell_play[p_dvd->i_prg_cell].i_start_sector );
404 p_dvd->i_end_sector = MIN(
405 p_dvd->p_ifo->vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector,
406 title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
408 //intf_WarnMsg( 3, "cell: %d sector1: 0x%x end1: 0x%x\nindex: %d sector2: 0x%x end2: 0x%x", p_dvd->i_cell, p_dvd->p_ifo->p_vts->c_adt.p_cell_inf[p_dvd->i_cell].i_ssector, p_dvd->p_ifo->p_vts->c_adt.p_cell_inf[p_dvd->i_cell].i_esector, p_dvd->i_prg_cell, p_pgc->p_cell_play_inf[p_dvd->i_prg_cell].i_entry_sector, p_pgc->p_cell_play_inf[p_dvd->i_prg_cell].i_lsector );
414 /*****************************************************************************
415 * DVDChapterSelect: find the cell corresponding to requested chapter
416 * When called to find chapter 1, also sets title size and end.
417 *****************************************************************************/
418 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
421 p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
423 /* Find cell index in Program chain for current chapter */
424 p_dvd->i_prg_cell = title.chapter_map.pi_start_cell[i_chapter-1] - 1;
428 /* Search for cell_index in cell adress_table and initialize start sector */
429 DVDFindSector( p_dvd );
431 /* start is : beginning of vts vobs + offset to vob x */
432 p_dvd->i_start = p_dvd->i_title_start +
433 DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
435 /* Position the fd pointer on the right address */
436 p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
438 p_dvd->i_chapter = i_chapter;
443 /*****************************************************************************
444 * DVDSetArea: initialize input data for title x, chapter y.
445 * It should be called for each user navigation request, and to change
446 * audio or sub-picture streams.
448 * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
449 * i_audio, i_spu start from 1 ; 0 means off.
450 * A negative value for an argument means it does not change
451 *****************************************************************************/
452 static int DVDSetArea( input_thread_t * p_input, input_area_t * p_area )
454 thread_dvd_data_t * p_dvd;
455 es_descriptor_t * p_es;
465 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
467 vlc_mutex_lock( &p_input->stream.stream_lock );
469 if( p_area != p_input->stream.p_selected_area )
473 * We have to load all title information
475 /* Change the default area */
476 p_input->stream.p_selected_area =
477 p_input->stream.pp_areas[p_area->i_id];
479 /* title number: it is not vts nb! */
480 p_dvd->i_title = p_area->i_id;
481 p_dvd->p_ifo->i_title = p_dvd->i_title;
484 IfoTitleSet( p_dvd->p_ifo );
485 intf_WarnMsg( 2, "ifo info: vts initialized" );
487 #define vmg p_dvd->p_ifo->vmg
488 #define vts p_dvd->p_ifo->vts
489 /* title position inside the selected vts */
491 vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_num;
492 p_dvd->i_program_chain =
493 vts.title_inf.p_title_start[p_dvd->i_vts_title-1].i_program_chain_num;
495 /* css title key for current vts */
496 if( p_dvd->b_encrypted )
498 p_dvd->p_css->i_title =
499 vmg.title_inf.p_attr[p_dvd->i_title-1].i_title_set_num;
500 p_dvd->p_css->i_title_pos =
502 vts.manager_inf.i_title_vob_start_sector * DVD_LB_SIZE;
503 CSSGetKey( p_dvd->p_css );
504 intf_WarnMsg( 2, "css info: vts key initialized" );
508 * Set selected title start and size
511 /* title set offset */
512 p_dvd->i_title_start = vts.i_pos + DVD_LB_SIZE *
513 (off_t)( vts.manager_inf.i_title_vob_start_sector );
515 /* last video cell */
517 p_dvd->i_prg_cell = -1 +
518 vts.title_unit.p_title[p_dvd->i_program_chain-1].title.i_cell_nb;
519 DVDFindCell( p_dvd );
521 /* temporary hack to fix size in some dvds */
522 if( p_dvd->i_cell >= vts.cell_inf.i_cell_nb )
524 p_dvd->i_cell = vts.cell_inf.i_cell_nb - 1;
528 p_dvd->i_size = DVD_LB_SIZE *
529 (off_t)( vts.cell_inf.p_cell_map[p_dvd->i_cell].i_end_sector );
531 DVDChapterSelect( p_dvd, 1 );
533 p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
535 intf_WarnMsg( 2, "dvd info: title: %d", p_dvd->i_title );
536 intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
537 intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
538 intf_WarnMsg( 2, "dvd info: number of chapters: %d",
539 vmg.title_inf.p_attr[p_dvd->i_title-1].i_chapter_nb );
541 /* Area definition */
542 p_input->stream.p_selected_area->i_start = p_dvd->i_start;
543 p_input->stream.p_selected_area->i_size = p_dvd->i_size;
546 * Destroy obsolete ES by reinitializing program 0
547 * and find all ES in title with ifo data
549 if( p_input->stream.pp_programs != NULL )
551 /* We don't use input_EndStream here since
552 * we keep area structures */
554 for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
556 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
559 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
561 p_input->stream.pp_selected_es = NULL;
562 p_input->stream.i_selected_es_number = 0;
565 input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
567 /* No PSM to read in DVD mode, we already have all information */
568 p_input->stream.pp_programs[0]->b_is_ok = 1;
569 p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
573 /* ES 0 -> video MPEG2 */
574 p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
575 p_es->i_stream_id = 0xe0;
576 p_es->i_type = MPEG2_VIDEO_ES;
577 p_es->i_cat = VIDEO_ES;
578 input_SelectES( p_input, p_es );
579 intf_WarnMsg( 1, "dvd info: video MPEG2 stream" );
581 /* Audio ES, in the order they appear in .ifo */
586 for( i = 1 ; i <= vts.manager_inf.i_audio_nb ; i++ )
590 intf_WarnMsg( 1, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x", i,
591 vts.manager_inf.p_audio_attr[i-1].i_num_channels,
592 vts.manager_inf.p_audio_attr[i-1].i_coding_mode,
593 vts.manager_inf.p_audio_attr[i-1].i_multichannel_extension,
594 vts.manager_inf.p_audio_attr[i-1].i_type,
595 vts.manager_inf.p_audio_attr[i-1].i_appl_mode,
596 vts.manager_inf.p_audio_attr[i-1].i_foo,
597 vts.manager_inf.p_audio_attr[i-1].i_test,
598 vts.manager_inf.p_audio_attr[i-1].i_bar,
599 vts.manager_inf.p_audio_attr[i-1].i_quantization,
600 vts.manager_inf.p_audio_attr[i-1].i_sample_freq,
601 vts.manager_inf.p_audio_attr[i-1].i_lang_code,
602 vts.manager_inf.p_audio_attr[i-1].i_caption );
605 switch( vts.manager_inf.p_audio_attr[i-1].i_coding_mode )
608 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
609 p_es = input_AddES( p_input,
610 p_input->stream.pp_programs[0], i_id, 0 );
611 p_es->i_stream_id = 0xbd;
612 p_es->i_type = AC3_AUDIO_ES;
614 p_es->i_cat = AUDIO_ES;
615 strcpy( p_es->psz_desc, Language( hton16(
616 vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
617 strcat( p_es->psz_desc, " (ac3)" );
619 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
620 i, p_es->psz_desc, i_id );
624 case 0x03: /* MPEG audio */
626 p_es = input_AddES( p_input,
627 p_input->stream.pp_programs[0], i_id, 0 );
628 p_es->i_stream_id = i_id;
629 p_es->i_type = MPEG2_AUDIO_ES;
631 p_es->i_cat = AUDIO_ES;
632 strcpy( p_es->psz_desc, Language( hton16(
633 vts.manager_inf.p_audio_attr[i-1].i_lang_code ) ) );
634 strcat( p_es->psz_desc, " (mpeg)" );
636 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
637 i, p_es->psz_desc, i_id );
640 case 0x04: /* LPCM */
642 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
647 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
651 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
652 vts.manager_inf.p_audio_attr[i-1].i_coding_mode );
661 for( i = 1 ; i <= vts.manager_inf.i_spu_nb; i++ )
665 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
666 p_es = input_AddES( p_input,
667 p_input->stream.pp_programs[0], i_id, 0 );
668 p_es->i_stream_id = 0xbd;
669 p_es->i_type = DVD_SPU_ES;
670 p_es->i_cat = SPU_ES;
671 strcpy( p_es->psz_desc, Language( hton16(
672 vts.manager_inf.p_spu_attr[i-1].i_lang_code ) ) );
673 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
674 i, p_es->psz_desc, i_id );
676 /* The before the last spu has a 0x0 prefix */
678 ( vts.manager_inf.p_spu_attr[i].i_prefix == 0 );
682 /* For audio: first one if none or a not existing one specified */
683 i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
684 if( i_audio < 0 || i_audio > vts.manager_inf.i_audio_nb )
686 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
689 if( i_audio > 0 && vts.manager_inf.i_audio_nb > 0 )
691 input_SelectES( p_input, p_input->stream.pp_es[i_audio] );
694 /* for spu, default is none */
695 i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
696 if( i_spu < 0 || i_spu > vts.manager_inf.i_spu_nb )
698 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
701 if( i_spu > 0 && vts.manager_inf.i_spu_nb > 0 )
703 i_spu += vts.manager_inf.i_audio_nb;
704 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );
709 p_area = p_input->stream.p_selected_area;
716 if( ( p_area->i_part > 0 ) &&
717 ( p_area->i_part <= p_area->i_part_nb ) )
719 DVDChapterSelect( p_dvd, p_area->i_part );
721 p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
723 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
725 intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld",
726 p_area->i_part, p_area->i_tell );
729 vlc_mutex_unlock( &p_input->stream.stream_lock );
735 /*****************************************************************************
736 * DVDInit: initializes DVD structures
737 *****************************************************************************/
738 static void DVDInit( input_thread_t * p_input )
740 thread_dvd_data_t * p_dvd;
745 /* I don't want DVDs to start playing immediately */
746 // p_input->stream.i_new_status = PAUSE_S;
748 p_dvd = malloc( sizeof(thread_dvd_data_t) );
751 intf_ErrMsg( "dvd error: out of memory" );
752 p_input->b_error = 1;
756 p_input->p_plugin_data = (void *)p_dvd;
757 p_input->p_method_data = NULL;
759 p_dvd->i_fd = p_input->i_handle;
761 /* reading several block once seems to cause lock-up
762 * when using input_ToggleES
763 * who wrote thez damn buggy piece of shit ??? --stef */
764 p_dvd->i_block_once = 1;//32;
765 p_input->i_read_once = 4;//128;
767 i = CSSTest( p_input->i_handle );
771 intf_ErrMsg( "css error: could not get copyright bit" );
773 p_input->b_error = 1;
777 p_dvd->b_encrypted = i;
779 lseek( p_input->i_handle, 0, SEEK_SET );
781 /* Reading structures initialisation */
782 p_input->p_method_data =
783 DVDNetlistInit( 2048, 8192, 2048, DVD_LB_SIZE, p_dvd->i_block_once );
784 intf_WarnMsg( 2, "dvd info: netlist initialized" );
786 /* Ifo initialisation */
787 if( IfoInit( &p_dvd->p_ifo, p_input->i_handle ) < 0 )
789 intf_ErrMsg( "dvd error: fatal failure in IFO" );
791 p_input->b_error = 1;
795 /* CSS initialisation */
796 if( p_dvd->b_encrypted )
798 p_dvd->p_css = malloc( sizeof(css_t) );
799 if( p_dvd->p_css == NULL )
801 intf_ErrMsg( "dvd error: couldn't create CSS structure" );
803 p_input->b_error = 1;
807 p_dvd->p_css->i_fd = p_input->i_handle;
808 p_dvd->p_css->i_agid = 0;
810 if( CSSInit( p_dvd->p_css ) )
812 intf_ErrMsg( "dvd error: fatal failure in CSS" );
813 free( p_dvd->p_css );
815 p_input->b_error = 1;
819 intf_WarnMsg( 2, "dvd info: CSS initialized" );
822 /* Initialize ES structures */
823 input_InitStream( p_input, sizeof( stream_ps_data_t ) );
825 /* Set stream and area data */
826 vlc_mutex_lock( &p_input->stream.stream_lock );
828 #define title_inf p_dvd->p_ifo->vmg.title_inf
829 intf_WarnMsg( 2, "dvd info: number of titles: %d", title_inf.i_title_nb );
831 #define area p_input->stream.pp_areas
832 /* We start from 1 here since area 0 is reserved for video_ts.vob */
833 for( i = 1 ; i <= title_inf.i_title_nb ; i++ )
835 input_AddArea( p_input );
837 /* Titles are Program Chains */
840 /* Absolute start offset and size
841 * We can only set that with vts ifo, so we do it during the
842 * first call to DVDSetArea */
843 area[i]->i_start = 0;
846 /* Number of chapters */
847 area[i]->i_part_nb = title_inf.p_attr[i-1].i_chapter_nb;
850 /* Offset to vts_i_0.ifo */
851 area[i]->i_plugin_data = p_dvd->p_ifo->i_off +
852 ( title_inf.p_attr[i-1].i_start_sector * DVD_LB_SIZE );
856 vlc_mutex_unlock( &p_input->stream.stream_lock );
858 /* Get requested title - if none try the first title */
859 i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
860 if( i_title <= 0 || i_title > title_inf.i_title_nb )
865 /* Get requested chapter - if none defaults to first one */
866 i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
872 p_input->stream.pp_areas[i_title]->i_part = i_chapter;
874 /* set title, chapter, audio and subpic */
875 DVDSetArea( p_input, p_input->stream.pp_areas[i_title] );
880 /*****************************************************************************
881 * DVDEnd: frees unused data
882 *****************************************************************************/
883 static void DVDEnd( input_thread_t * p_input )
885 thread_dvd_data_t * p_dvd;
886 dvd_netlist_t * p_netlist;
888 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
889 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
891 if( p_dvd->b_encrypted )
893 free( p_dvd->p_css );
896 IfoEnd( p_dvd->p_ifo );
898 DVDNetlistEnd( p_netlist );
901 /*****************************************************************************
902 * DVDRead: reads data packets into the netlist.
903 *****************************************************************************
904 * Returns -1 in case of error, 0 if everything went well, and 1 in case of
906 *****************************************************************************/
907 static int DVDRead( input_thread_t * p_input,
908 data_packet_t ** pp_packets )
910 thread_dvd_data_t * p_dvd;
911 dvd_netlist_t * p_netlist;
912 struct iovec * p_vec;
913 struct data_packet_s * pp_data[p_input->i_read_once];
925 p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
926 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
928 p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
930 /* Get an iovec pointer */
931 if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
933 intf_ErrMsg( "DVD: read error" );
937 i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
939 /* Get the position of the next cell if we're at cell end */
940 if( i_block_once <= 0 )
944 /* Find cell index in adress map */
945 if( DVDFindSector( p_dvd ) < 0 )
947 pp_packets[0] = NULL;
948 intf_ErrMsg( "dvd error: can't find next cell" );
952 /* Position the fd pointer on the right address */
953 i_off = lseek( p_dvd->i_fd,
954 p_dvd->i_title_start +
955 (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET );
957 /* update chapter : it will be easier when we have navigation
959 if( title.chapter_map.pi_start_cell[p_dvd->i_chapter-1] <=
965 vlc_mutex_lock( &p_input->stream.stream_lock );
967 p_input->stream.p_selected_area->i_tell = i_off -
968 p_input->stream.p_selected_area->i_start;
969 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
971 /* the synchro has to be reinitialized when we change cell */
972 p_input->stream.pp_programs[0]->i_synchro_state = SYNCHRO_START;
974 vlc_mutex_unlock( &p_input->stream.stream_lock );
976 i_block_once = p_dvd->i_end_sector - p_dvd->i_sector + 1;
979 /* the number of blocks read is the maw between the requested
980 * value and the leaving block in the cell */
981 if( i_block_once > p_dvd->i_block_once )
983 i_block_once = p_dvd->i_block_once;
985 //intf_WarnMsg( 2, "Sector: 0x%x Read: %d Chapter: %d", p_dvd->i_sector, i_block_once, p_dvd->i_chapter );
987 p_netlist->i_read_once = i_block_once;
990 i_read_bytes = readv( p_dvd->i_fd, p_vec, i_block_once );
991 i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
993 /* Update netlist indexes */
994 DVDMviovec( p_netlist, i_read_blocks, pp_data );
996 /* Update global position */
997 p_dvd->i_sector += i_read_blocks;
1001 /* Read headers to compute payload length */
1002 for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
1004 if( p_dvd->b_encrypted )
1006 CSSDescrambleSector( p_dvd->p_css->pi_title_key,
1007 p_vec[i_iovec].iov_base );
1008 ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
1013 while( i_pos < p_netlist->i_buffer_size )
1015 pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
1018 if( U32_AT( pi_cur ) != 0x1BA )
1020 /* That's the case for all packets, except pack header. */
1021 i_packet_size = U16_AT( pi_cur + 4 );
1022 pp_packets[i_packet] = DVDNewPtr( p_netlist );
1027 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
1032 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1039 intf_ErrMsg( "Unable to determine stream type" );
1043 pp_packets[i_packet] = pp_data[i_iovec];
1047 (*pp_data[i_iovec]->pi_refcount)++;
1049 pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1051 pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1053 pp_packets[i_packet]->p_payload_start =
1054 pp_packets[i_packet]->p_buffer + i_pos;
1056 pp_packets[i_packet]->p_payload_end =
1057 pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1059 pp_packets[i_packet]->p_next = NULL;
1060 pp_packets[i_packet]->b_discard_payload = 0;
1063 i_pos += i_packet_size + 6;
1067 pp_packets[i_packet] = NULL;
1069 vlc_mutex_lock( &p_input->stream.stream_lock );
1071 p_input->stream.p_selected_area->i_tell += i_read_bytes;
1072 b_eof = p_input->stream.p_selected_area->i_tell < p_dvd->i_size ? 0 : 1;
1074 vlc_mutex_unlock( &p_input->stream.stream_lock );
1076 if( ( i_read_blocks == i_block_once ) && ( !b_eof ) )
1088 /*****************************************************************************
1089 * DVDRewind : reads a stream backward
1090 *****************************************************************************/
1091 static int DVDRewind( input_thread_t * p_input )
1096 /*****************************************************************************
1097 * DVDSeek : Goes to a given position on the stream ; this one is used by the
1098 * input and translate chronological position from input to logical postion
1101 * The lock should be taken before calling this function.
1102 *****************************************************************************/
1103 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1105 thread_dvd_data_t * p_dvd;
1111 p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1113 p_dvd->p_ifo->vts.title_unit.p_title[p_dvd->i_program_chain-1].title
1115 /* we have to take care of offset of beginning of title */
1116 i_pos = i_off + p_input->stream.p_selected_area->i_start
1117 - p_dvd->i_title_start;
1119 /* update navigation data */
1120 p_dvd->i_sector = i_pos >> 11;
1125 /* parse vobu address map to find program cell */
1126 while( title.p_cell_play[i_prg_cell].i_end_sector < p_dvd->i_sector )
1131 p_dvd->i_prg_cell = i_prg_cell;
1134 /* Find first title cell which is inside program cell */
1135 DVDFindCell( p_dvd );
1137 i_cell = p_dvd->i_cell;
1138 #define cell p_dvd->p_ifo->vts.cell_inf.p_cell_map[i_cell]
1139 /* parse cell address map to find title cell containing sector */
1140 while( cell.i_end_sector < p_dvd->i_sector )
1145 p_dvd->i_cell = i_cell;
1147 p_dvd->i_end_sector = MIN(
1149 title.p_cell_play[p_dvd->i_prg_cell].i_end_sector );
1151 /* update chapter */
1152 while( title.chapter_map.pi_start_cell[i_chapter-1] <= p_dvd->i_prg_cell )
1157 p_dvd->i_chapter = i_chapter;
1158 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
1160 p_input->stream.p_selected_area->i_tell =
1161 lseek( p_dvd->i_fd, p_dvd->i_title_start +
1162 (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE, SEEK_SET ) -
1163 p_input->stream.p_selected_area->i_start;
1165 intf_WarnMsg( 1, "Program Cell: %d Cell: %d Chapter: %d",
1166 i_prg_cell, i_cell, p_dvd->i_chapter );