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 1.30 2001/03/06 10:21:59 massiot 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 DVDCheckCSS ( struct input_thread_s * );
247 static int DVDRead ( struct input_thread_s *, data_packet_t ** );
248 static void DVDInit ( struct input_thread_s * );
249 static void DVDEnd ( struct input_thread_s * );
250 static void DVDSeek ( struct input_thread_s *, off_t );
251 static int DVDSetArea ( struct input_thread_s *, int, int, int, int );
252 static int DVDRewind ( struct input_thread_s * );
254 /*****************************************************************************
255 * Functions exported as capabilities. They are declared as static so that
256 * we don't pollute the namespace too much.
257 *****************************************************************************/
258 void _M( input_getfunctions )( function_list_t * p_function_list )
260 #define input p_function_list->functions.input
261 p_function_list->pf_probe = DVDProbe;
262 input.pf_init = DVDInit;
263 input.pf_open = input_FileOpen;
264 input.pf_close = input_FileClose;
265 input.pf_end = DVDEnd;
266 input.pf_read = DVDRead;
267 input.pf_set_area = DVDSetArea;
268 input.pf_demux = input_DemuxPS;
269 input.pf_new_packet = DVDNewPacket;
270 input.pf_new_pes = DVDNewPES;
271 input.pf_delete_packet = DVDDeletePacket;
272 input.pf_delete_pes = DVDDeletePES;
273 input.pf_rewind = DVDRewind;
274 input.pf_seek = DVDSeek;
279 * Local tools to decode some data in ifo
282 /*****************************************************************************
283 * Language: gives the long language name from the two-letters ISO-639 code
284 *****************************************************************************/
285 static char * Language( u16 i_code )
289 while( memcmp( lang_tbl[i].p_code, &i_code, 2 ) &&
290 lang_tbl[i].p_lang_long[0] )
295 return lang_tbl[i].p_lang_long;
299 * Data reading functions
302 /*****************************************************************************
303 * DVDProbe: verifies that the stream is a PS stream
304 *****************************************************************************/
305 static int DVDProbe( probedata_t *p_data )
307 input_thread_t * p_input = (input_thread_t *)p_data;
309 char * psz_name = p_input->p_source;
313 if( TestMethod( INPUT_METHOD_VAR, "dvd" ) )
319 #endif /* HAVE_CSS */
322 if( ( strlen(psz_name) > 4 ) && !strncasecmp( psz_name, "dvd:", 4 ) )
324 /* If the user specified "dvd:" then it's probably a DVD */
329 #endif /* HAVE_CSS */
333 i_handle = open( psz_name, 0 );
343 /*****************************************************************************
344 * DVDCheckCSS: check the stream
345 *****************************************************************************/
346 static int DVDCheckCSS( input_thread_t * p_input )
348 return CSSTest( p_input->i_handle );
352 /*****************************************************************************
353 * DVDFindSector: find cell index in adress map from index in
354 * information table program map and give corresponding sectors.
355 *****************************************************************************/
356 static int DVDFindSector( thread_dvd_data_t * p_dvd )
362 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
364 i_index = p_dvd->i_prg_cell - 1;
367 if( i_index++ > p_dvd->i_prg_cell )
372 i_cell = p_dvd->i_cell + 1;
374 while( ( ( p_pgc->p_cell_pos_inf[i_index].i_vob_id !=
375 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_vob_id ) ||
376 ( p_pgc->p_cell_pos_inf[i_index].i_cell_id !=
377 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_cell_id ) ) &&
378 ( i_cell < ( p_dvd->ifo.vts.c_adt.i_cell_nb ) ) )
383 } while( i_cell == ( p_dvd->ifo.vts.c_adt.i_cell_nb ) );
385 p_dvd->i_cell = i_cell;
386 p_dvd->i_prg_cell = i_index;
388 /* Find start and end sectors of new cell */
389 p_dvd->i_sector = MAX(
390 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_ssector,
391 p_pgc->p_cell_play_inf[i_index].i_entry_sector );
392 p_dvd->i_end_sector = MIN(
393 p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_esector,
394 p_pgc->p_cell_play_inf[i_index].i_lsector );
396 //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 );
401 /*****************************************************************************
402 * DVDChapterSelect: find the cell corresponding to requested chapter
403 * When called to find chapter 1, also sets title size and end.
404 *****************************************************************************/
405 static int DVDChapterSelect( thread_dvd_data_t * p_dvd, int i_chapter )
409 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
411 /* Find cell index in Program chain for current chapter */
412 p_dvd->i_prg_cell = p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1;
415 /* Search for cell_index in cell adress_table */
416 DVDFindSector( p_dvd );
418 /* initialize navigation parameters */
419 p_dvd->i_sector = p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_ssector;
420 p_dvd->i_end_sector =
421 p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_esector;
423 /* start is : beginning of vts vobs + offset to vob x */
424 p_dvd->i_start = p_dvd->i_title_start +
425 DVD_LB_SIZE * (off_t)( p_dvd->i_sector );
427 /* Position the fd pointer on the right address */
428 p_dvd->i_start = lseek( p_dvd->i_fd, p_dvd->i_start, SEEK_SET );
430 p_dvd->i_chapter = i_chapter;
435 /*****************************************************************************
436 * DVDSetArea: initialize input data for title x, chapter y.
437 * It should be called for each user navigation request, and to change
438 * audio or sub-picture streams.
440 * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
441 * i_audio, i_spu start from 1 ; 0 means off.
442 * A negative value for an argument means it does not change
443 *****************************************************************************/
444 static int DVDSetArea( input_thread_t * p_input,
445 int i_title, int i_chapter,
446 int i_audio, int i_spu )
448 thread_dvd_data_t * p_dvd;
449 es_descriptor_t * p_es;
459 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
461 vlc_mutex_lock( &p_input->stream.stream_lock );
467 * We have to load all title information
470 /* Change the default area */
471 p_input->stream.p_selected_area = p_input->stream.pp_areas[i_title];
473 /* title number: it is not vts nb! */
474 p_dvd->i_title = i_title;
476 /* title position inside the selected vts */
478 p_dvd->ifo.vmg.ptt_srpt.p_tts[i_title-1].i_vts_ttn;
481 p_dvd->ifo.i_title = i_title;
484 IfoReadVTS( &(p_dvd->ifo) );
485 intf_WarnMsg( 2, "ifo info: vts initialized" );
487 /* css title key for current vts */
488 if( p_dvd->b_encrypted )
490 p_dvd->p_css->i_title =
491 p_dvd->ifo.vmg.ptt_srpt.p_tts[i_title-1].i_tts_nb;
492 p_dvd->p_css->i_title_pos =
493 p_dvd->ifo.vts.i_pos +
494 p_dvd->ifo.vts.mat.i_tt_vobs_ssector * DVD_LB_SIZE;
495 CSSGetKey( p_dvd->p_css );
496 intf_WarnMsg( 2, "css info: vts key initialized" );
500 * Set selected title start and size
503 /* title set offset */
504 p_dvd->i_title_start = p_dvd->ifo.vts.i_pos + DVD_LB_SIZE *
505 (off_t)( p_dvd->ifo.vts.mat.i_tt_vobs_ssector );
507 /* last video cell */
509 p_dvd->i_prg_cell = -1 +
510 p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc.i_cell_nb;
511 DVDFindSector( p_dvd );
513 /* temporary hack to fix size in some dvds */
514 if( p_dvd->i_cell >= p_dvd->ifo.vts.c_adt.i_cell_nb )
516 p_dvd->i_cell = p_dvd->ifo.vts.c_adt.i_cell_nb - 1;
519 p_dvd->i_size = DVD_LB_SIZE *
520 (off_t)( p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_esector );
522 DVDChapterSelect( p_dvd, 1 );
524 p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
526 lseek( p_input->i_handle, p_dvd->i_start, SEEK_SET );
529 intf_WarnMsg( 2, "dvd info: title: %d", i_title );
530 intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
531 intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
532 intf_WarnMsg( 2, "dvd info: number of chapters: %d",
533 p_dvd->ifo.vmg.ptt_srpt.p_tts[i_title-1].i_ptt_nb );
535 /* intf_WarnMsg( 3, "last: %d index: %d", i_last_chapter, i_index );*/
538 /* 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 );*/
540 /* Area definition */
541 p_input->stream.p_selected_area->i_start = p_dvd->i_start;
542 p_input->stream.p_selected_area->i_size = p_dvd->i_size;
545 * Destroy obsolete ES by reinitializing program 0
546 * and find all ES in title with ifo data
548 if( p_input->stream.pp_programs != NULL )
550 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
553 input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
557 /* ES 0 -> video MPEG2 */
558 p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
559 p_es->i_stream_id = 0xe0;
560 p_es->i_type = MPEG2_VIDEO_ES;
561 input_SelectES( p_input, p_es );
562 intf_WarnMsg( 1, "dvd info: video MPEG2 stream" );
564 /* Audio ES, in the order they appear in .ifo */
565 i_nb = p_dvd->ifo.vts.mat.i_audio_nb;
570 for( i = 1 ; i <= i_nb ; i++ )
574 fprintf( stderr, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x\n", i,
575 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_num_channels,
576 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_coding_mode,
577 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_multichannel_extension,
578 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_type,
579 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_appl_mode,
580 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_foo,
581 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_bar,
582 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_appl_mode,
583 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_quantization,
584 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_sample_freq,
585 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code,
586 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_caption );
589 switch( p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_coding_mode )
592 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
593 p_es = input_AddES( p_input,
594 p_input->stream.pp_programs[0], i_id, 0 );
595 p_es->i_stream_id = 0xbd;
596 p_es->i_type = AC3_AUDIO_ES;
598 strcpy( p_es->psz_desc, Language( hton16(
599 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code ) ) );
601 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
602 i, p_es->psz_desc, i_id );
606 case 0x03: /* MPEG audio */
608 p_es = input_AddES( p_input,
609 p_input->stream.pp_programs[0], i_id, 0 );
610 p_es->i_stream_id = i_id;
611 p_es->i_type = MPEG2_AUDIO_ES;
613 strcpy( p_es->psz_desc, Language( hton16(
614 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code ) ) );
616 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
617 i, p_es->psz_desc, i_id );
620 case 0x04: /* LPCM */
622 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
627 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
631 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
632 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_coding_mode );
638 i_nb = p_dvd->ifo.vts.mat.i_subpic_nb;
642 for( i = 1 ; i <= i_nb ; i++ )
646 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
647 p_es = input_AddES( p_input,
648 p_input->stream.pp_programs[0], i_id, 0 );
649 p_es->i_stream_id = 0xbd;
650 p_es->i_type = DVD_SPU_ES;
651 strcpy( p_es->psz_desc, Language( hton16(
652 p_dvd->ifo.vts.mat.p_subpic_atrt[i-1].i_lang_code ) ) );
653 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
654 i, p_es->psz_desc, i_id );
656 /* The before the last spu has a 0x0 prefix */
658 ( p_dvd->ifo.vts.mat.p_subpic_atrt[i].i_prefix == 0 );
665 * Select requested ES
667 if( ( i_audio >= 0 ) || ( i_title >= 0 ) )
670 /* Audio: we check it is in the range and
671 * default it to the first if not */
672 if( i_audio > p_dvd->ifo.vts.mat.i_audio_nb )
677 p_es = p_input->stream.pp_programs[0]->pp_es[i_audio];
679 /* We can only have one audio channel */
680 /* Look for a preselected one */
682 for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
684 if( p_input->stream.pp_selected_es[i]->b_audio )
694 if( p_input->stream.pp_selected_es[i_index] != p_es )
696 input_UnselectES( p_input,
697 p_input->stream.pp_selected_es[i_index] );
698 input_SelectES( p_input, p_es );
699 intf_WarnMsg( 1, "dvd info: audio %d selected -> %s (0x%x)",
700 i_audio, p_es->psz_desc, p_es->i_id );
705 input_SelectES( p_input, p_es );
706 intf_WarnMsg( 1, "dvd info: audio %d selected -> %s (0x%x)",
707 i_audio, p_es->psz_desc, p_es->i_id );
711 if( ( i_spu >= 0 ) || ( i_title >= 0 ) )
713 /* For spu: no one if none or a not existing one requested */
714 if( ( i_spu <= p_dvd->ifo.vts.mat.i_subpic_nb ) && ( i_spu > 0 ) )
716 input_SelectES( p_input, ( p_es = p_input->stream.pp_programs[0]->
717 pp_es[ i_spu + p_dvd->ifo.vts.mat.i_audio_nb ] ) );
719 intf_WarnMsg( 1, "dvd info: spu %d selected -> %s (0x%x)",
720 i_spu, p_es->psz_desc, p_es->i_id );
728 if( ( i_chapter > 0 ) &&
729 ( i_chapter <= p_input->stream.p_selected_area->i_part_nb ) )
731 DVDChapterSelect( p_dvd, i_chapter );
733 p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
734 p_input->stream.p_selected_area->i_start;
735 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
737 intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld", i_chapter,
738 p_input->stream.p_selected_area->i_tell );
741 /* No PSM to read in DVD mode, we already have all information */
742 p_input->stream.pp_programs[0]->b_is_ok = 1;
744 vlc_mutex_unlock( &p_input->stream.stream_lock );
749 /*****************************************************************************
750 * DVDInit: initializes DVD structures
751 *****************************************************************************/
752 static void DVDInit( input_thread_t * p_input )
754 thread_dvd_data_t * p_dvd;
761 if( (p_dvd = malloc( sizeof(thread_dvd_data_t) )) == NULL )
763 intf_ErrMsg( "Out of memory" );
764 p_input->b_error = 1;
768 p_input->p_plugin_data = (void *)p_dvd;
769 p_input->p_method_data = NULL;
771 p_dvd->i_fd = p_input->i_handle;
773 p_dvd->i_block_once = 1;
774 p_input->i_read_once = 8;
776 p_dvd->b_encrypted = DVDCheckCSS( p_input );
778 lseek( p_input->i_handle, 0, SEEK_SET );
780 /* Reading structures initialisation */
781 p_input->p_method_data =
782 DVDNetlistInit( 4096, 8192, 4096, DVD_LB_SIZE, p_dvd->i_block_once );
783 intf_WarnMsg( 2, "dvd info: netlist initialized" );
785 /* Ifo initialisation */
786 p_dvd->ifo = IfoInit( p_input->i_handle );
787 intf_WarnMsg( 2, "ifo info: vmg initialized" );
789 /* CSS initialisation */
790 if( p_dvd->b_encrypted )
792 p_dvd->p_css = CSSInit( p_input->i_handle );
794 if( p_dvd->p_css == NULL )
796 intf_ErrMsg( "css error: fatal failure" );
797 p_input->b_error = 1;
801 intf_WarnMsg( 2, "css info: initialized" );
804 /* Initialize ES structures */
805 input_InitStream( p_input, sizeof( stream_ps_data_t ) );
807 /* Set stream and area data */
808 vlc_mutex_lock( &p_input->stream.stream_lock );
810 #define srpt p_dvd->ifo.vmg.ptt_srpt
811 intf_WarnMsg( 2, "dvd info: number of titles: %d", srpt.i_ttu_nb );
813 #define area p_input->stream.pp_areas
814 /* We start from 1 here since area 0 is reserved for video_ts.vob */
815 for( i = 1 ; i <= srpt.i_ttu_nb ; i++ )
817 input_AddArea( p_input );
819 /* Should not be so simple eventually :
820 * are title Program Chains, or still something else ? */
823 /* Absolute start offset and size
824 * We can only set that with vts ifo, so we do it during the
825 * first call to DVDSetArea */
826 area[i]->i_start = 0;
829 /* Number of chapter */
830 area[i]->i_part_nb = srpt.p_tts[i-1].i_ptt_nb;
833 /* Offset to vts_i_0.ifo */
834 area[i]->i_plugin_data = p_dvd->ifo.i_off +
835 ( srpt.p_tts[i-1].i_ssector * DVD_LB_SIZE );
839 vlc_mutex_unlock( &p_input->stream.stream_lock );
841 /* Get requested title - if none try to find one where is the movie */
842 i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
843 if( i_title <= 0 || i_title > srpt.i_ttu_nb )
849 /* Get requested chapter - if none defaults to first one */
850 i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
856 /* For audio: first one if none or a not existing one specified */
857 i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
860 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
864 i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
866 DVDSetArea( p_input, i_title, i_chapter, i_audio, i_spu );
871 /*****************************************************************************
872 * DVDEnd: frees unused data
873 *****************************************************************************/
874 static void DVDEnd( input_thread_t * p_input )
876 thread_dvd_data_t * p_dvd;
877 dvd_netlist_t * p_netlist;
879 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
880 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
882 CSSEnd( p_dvd->p_css );
883 // IfoEnd( p_dvd->p_ifo ) );
885 DVDNetlistEnd( p_netlist );
888 /*****************************************************************************
889 * DVDRead: reads data packets into the netlist.
890 *****************************************************************************
891 * Returns -1 in case of error, 0 if everything went well, and 1 in case of
893 *****************************************************************************/
894 static int DVDRead( input_thread_t * p_input,
895 data_packet_t ** pp_packets )
897 thread_dvd_data_t * p_dvd;
898 dvd_netlist_t * p_netlist;
900 struct iovec * p_vec;
901 struct data_packet_s * pp_data[p_input->i_read_once];
913 p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
914 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
915 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
917 /* Get an iovec pointer */
918 if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
920 intf_ErrMsg( "DVD: read error" );
924 /* Get the position of the next cell if we're at cell end */
926 if( p_dvd->i_sector > p_dvd->i_end_sector )
928 /* Find cell index in adress map */
929 if( DVDFindSector( p_dvd ) < 0 )
931 pp_packets[0] = NULL;
935 /* Position the fd pointer on the right address */
936 i_off = lseek( p_dvd->i_fd,
937 p_dvd->i_title_start +
938 (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE,
944 while( p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1 <
950 p_dvd->i_chapter = i_chapter;
952 vlc_mutex_lock( &p_input->stream.stream_lock );
954 p_input->stream.p_selected_area->i_tell = i_off -
955 p_input->stream.p_selected_area->i_start;
956 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
958 vlc_mutex_unlock( &p_input->stream.stream_lock );
963 i_read_bytes = readv( p_dvd->i_fd, p_vec, p_dvd->i_block_once );
964 i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
966 /* Update netlist indexes */
967 DVDMviovec( p_netlist, i_read_blocks, pp_data );
969 /* Update global position */
970 p_dvd->i_sector += i_read_blocks;
974 /* Read headers to compute payload length */
975 for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
977 if( p_dvd->b_encrypted )
979 CSSDescrambleSector( p_dvd->p_css->pi_title_key,
980 p_vec[i_iovec].iov_base );
981 ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
986 while( i_pos < p_netlist->i_buffer_size )
988 pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
991 if( U32_AT( pi_cur ) != 0x1BA )
993 /* That's the case for all packets, except pack header. */
994 i_packet_size = U16_AT( pi_cur + 4 );
995 pp_packets[i_packet] = DVDNewPtr( p_netlist );
1000 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
1005 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
1012 intf_ErrMsg( "Unable to determine stream type" );
1016 pp_packets[i_packet] = pp_data[i_iovec];
1020 (*pp_data[i_iovec]->pi_refcount)++;
1022 pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
1024 pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
1026 pp_packets[i_packet]->p_payload_start =
1027 pp_packets[i_packet]->p_buffer + i_pos;
1029 pp_packets[i_packet]->p_payload_end =
1030 pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1033 i_pos += i_packet_size + 6;
1037 pp_packets[i_packet] = NULL;
1039 vlc_mutex_lock( &p_input->stream.stream_lock );
1041 p_input->stream.p_selected_area->i_tell +=
1042 p_dvd->i_block_once *DVD_LB_SIZE;
1043 b_eof = p_input->stream.p_selected_area->i_tell < p_dvd->i_size ? 0 : 1;
1045 vlc_mutex_unlock( &p_input->stream.stream_lock );
1047 if( ( i_read_blocks == p_dvd->i_block_once ) && ( !b_eof ) )
1058 /*****************************************************************************
1059 * DVDRewind : reads a stream backward
1060 *****************************************************************************/
1061 static int DVDRewind( input_thread_t * p_input )
1066 /*****************************************************************************
1067 * DVDSeek : Goes to a given position on the stream ; this one is used by the
1068 * input and translate chronological position from input to logical postion
1071 * The lock should be taken before calling this function.
1072 *****************************************************************************/
1073 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1075 thread_dvd_data_t * p_dvd;
1082 p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1083 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
1085 /* update navigation data */
1086 p_dvd->i_sector = i_off >> 11;
1092 /* parse vobu address map to find program cell */
1093 while( p_pgc->p_cell_play_inf[i_prg_cell].i_lsector < p_dvd->i_sector )
1097 /* parse cell address map to find cell */
1098 while( p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_esector <=
1099 p_dvd->i_sector + 1 )
1104 p_dvd->i_prg_cell = i_prg_cell;
1105 p_dvd->i_cell = i_cell - 1; /* DVDFindSector will add one */
1107 /* check coherence of data */
1108 DVDFindSector( p_dvd );
1110 /* update chapter */
1111 while( p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1 < p_dvd->i_prg_cell )
1116 p_dvd->i_chapter = i_chapter;
1118 /* we have to take care of offset of beginning of title */
1119 i_pos = i_off + p_input->stream.p_selected_area->i_start;
1121 /* with DVD, we have to be on a sector boundary */
1122 i_pos = i_pos & (~0x7ff);
1124 i_pos = lseek( p_dvd->i_fd, i_pos, SEEK_SET );
1126 p_input->stream.p_selected_area->i_tell = i_pos -
1127 p_input->stream.p_selected_area->i_start;
1128 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;