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 1.32 2001/03/15 00:37:04 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>
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 *, struct input_area_s * );
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, input_area_t * p_area )
446 thread_dvd_data_t * p_dvd;
447 es_descriptor_t * p_es;
456 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
458 vlc_mutex_lock( &p_input->stream.stream_lock );
460 if( p_area != p_input->stream.p_selected_area )
464 * We have to load all title information
466 /* Change the default area */
467 p_input->stream.p_selected_area =
468 p_input->stream.pp_areas[p_area->i_id];
470 /* title number: it is not vts nb! */
471 p_dvd->i_title = p_area->i_id;
473 /* title position inside the selected vts */
475 p_dvd->ifo.vmg.ptt_srpt.p_tts[p_dvd->i_title-1].i_vts_ttn;
478 p_dvd->ifo.i_title = p_dvd->i_title;
481 IfoReadVTS( &(p_dvd->ifo) );
482 intf_WarnMsg( 2, "ifo info: vts initialized" );
484 /* css title key for current vts */
485 if( p_dvd->b_encrypted )
487 p_dvd->p_css->i_title =
488 p_dvd->ifo.vmg.ptt_srpt.p_tts[p_dvd->i_title-1].i_tts_nb;
489 p_dvd->p_css->i_title_pos =
490 p_dvd->ifo.vts.i_pos +
491 p_dvd->ifo.vts.mat.i_tt_vobs_ssector * DVD_LB_SIZE;
492 CSSGetKey( p_dvd->p_css );
493 intf_WarnMsg( 2, "css info: vts key initialized" );
497 * Set selected title start and size
500 /* title set offset */
501 p_dvd->i_title_start = p_dvd->ifo.vts.i_pos + DVD_LB_SIZE *
502 (off_t)( p_dvd->ifo.vts.mat.i_tt_vobs_ssector );
504 /* last video cell */
506 p_dvd->i_prg_cell = -1 +
507 p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc.i_cell_nb;
508 DVDFindSector( p_dvd );
510 /* temporary hack to fix size in some dvds */
511 if( p_dvd->i_cell >= p_dvd->ifo.vts.c_adt.i_cell_nb )
513 p_dvd->i_cell = p_dvd->ifo.vts.c_adt.i_cell_nb - 1;
516 p_dvd->i_size = DVD_LB_SIZE *
517 (off_t)( p_dvd->ifo.vts.c_adt.p_cell_inf[p_dvd->i_cell].i_esector );
519 DVDChapterSelect( p_dvd, 1 );
521 p_dvd->i_size -= (off_t)( p_dvd->i_sector + 1 ) *DVD_LB_SIZE;
523 lseek( p_input->i_handle, p_dvd->i_start, SEEK_SET );
526 intf_WarnMsg( 2, "dvd info: title: %d", p_dvd->i_title );
527 intf_WarnMsg( 2, "dvd info: vobstart at: %lld", p_dvd->i_start );
528 intf_WarnMsg( 2, "dvd info: stream size: %lld", p_dvd->i_size );
529 intf_WarnMsg( 2, "dvd info: number of chapters: %d",
530 p_dvd->ifo.vmg.ptt_srpt.p_tts[p_dvd->i_title-1].i_ptt_nb );
532 /* intf_WarnMsg( 3, "last: %d index: %d", i_last_chapter, i_index );*/
535 /* 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 );*/
537 /* Area definition */
538 p_input->stream.p_selected_area->i_start = p_dvd->i_start;
539 p_input->stream.p_selected_area->i_size = p_dvd->i_size;
542 * Destroy obsolete ES by reinitializing program 0
543 * and find all ES in title with ifo data
545 if( p_input->stream.pp_programs != NULL )
547 /* We don't use input_EndStream here since
548 * we keep area structures */
550 for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
552 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
555 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
557 free( p_input->stream.pp_selected_es );
558 p_input->stream.pp_selected_es = NULL;
559 p_input->stream.i_selected_es_number = 0;
562 input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
566 /* ES 0 -> video MPEG2 */
567 p_es = input_AddES( p_input, p_input->stream.pp_programs[0], 0xe0, 0 );
568 p_es->i_stream_id = 0xe0;
569 p_es->i_type = MPEG2_VIDEO_ES;
570 input_SelectES( p_input, p_es );
571 intf_WarnMsg( 1, "dvd info: video MPEG2 stream" );
574 /* Audio ES, in the order they appear in .ifo */
575 i_nb = p_dvd->ifo.vts.mat.i_audio_nb;
580 for( i = 1 ; i <= i_nb ; i++ )
584 fprintf( stderr, "Audio %d: %x %x %x %x %x %x %x %x %x %x %x %x\n", i,
585 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_num_channels,
586 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_coding_mode,
587 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_multichannel_extension,
588 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_type,
589 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_appl_mode,
590 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_foo,
591 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_bar,
592 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_appl_mode,
593 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_quantization,
594 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_sample_freq,
595 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code,
596 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_caption );
599 switch( p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_coding_mode )
602 i_id = ( ( i_ac3 + i ) << 8 ) | 0xbd;
603 p_es = input_AddES( p_input,
604 p_input->stream.pp_programs[0], i_id, 0 );
605 p_es->i_stream_id = 0xbd;
606 p_es->i_type = AC3_AUDIO_ES;
608 strcpy( p_es->psz_desc, Language( hton16(
609 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code ) ) );
611 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
612 i, p_es->psz_desc, i_id );
616 case 0x03: /* MPEG audio */
618 p_es = input_AddES( p_input,
619 p_input->stream.pp_programs[0], i_id, 0 );
620 p_es->i_stream_id = i_id;
621 p_es->i_type = MPEG2_AUDIO_ES;
623 strcpy( p_es->psz_desc, Language( hton16(
624 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_lang_code ) ) );
626 intf_WarnMsg( 1, "dvd info: audio stream %d %s\t(0x%x)",
627 i, p_es->psz_desc, i_id );
630 case 0x04: /* LPCM */
632 intf_ErrMsg( "dvd warning: LPCM audio not handled yet" );
637 intf_ErrMsg( "dvd warning: DTS audio not handled yet" );
641 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
642 p_dvd->ifo.vts.mat.p_audio_atrt[i-1].i_coding_mode );
648 i_nb = p_dvd->ifo.vts.mat.i_subpic_nb;
652 for( i = 1 ; i <= i_nb ; i++ )
656 i_id = ( i_sub_pic++ << 8 ) | 0xbd;
657 p_es = input_AddES( p_input,
658 p_input->stream.pp_programs[0], i_id, 0 );
659 p_es->i_stream_id = 0xbd;
660 p_es->i_type = DVD_SPU_ES;
662 strcpy( p_es->psz_desc, Language( hton16(
663 p_dvd->ifo.vts.mat.p_subpic_atrt[i-1].i_lang_code ) ) );
664 intf_WarnMsg( 1, "dvd info: spu stream %d %s\t(0x%x)",
665 i, p_es->psz_desc, i_id );
667 /* The before the last spu has a 0x0 prefix */
669 ( p_dvd->ifo.vts.mat.p_subpic_atrt[i].i_prefix == 0 );
676 p_area = p_input->stream.p_selected_area;
683 if( ( p_area->i_part > 0 ) &&
684 ( p_area->i_part <= p_area->i_part_nb ) )
686 DVDChapterSelect( p_dvd, p_area->i_part );
688 p_input->stream.p_selected_area->i_tell = p_dvd->i_start -
690 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
692 intf_WarnMsg( 2, "dvd info: chapter %d start at: %lld",
693 p_area->i_part, p_area->i_tell );
696 /* By default first audio stream and no spu */
697 input_SelectES( p_input, p_input->stream.pp_es[1] );
699 /* No PSM to read in DVD mode, we already have all information */
700 p_input->stream.pp_programs[0]->b_is_ok = 1;
702 vlc_mutex_unlock( &p_input->stream.stream_lock );
707 /*****************************************************************************
708 * DVDInit: initializes DVD structures
709 *****************************************************************************/
710 static void DVDInit( input_thread_t * p_input )
712 thread_dvd_data_t * p_dvd;
719 if( (p_dvd = malloc( sizeof(thread_dvd_data_t) )) == NULL )
721 intf_ErrMsg( "Out of memory" );
722 p_input->b_error = 1;
726 p_input->p_plugin_data = (void *)p_dvd;
727 p_input->p_method_data = NULL;
729 p_dvd->i_fd = p_input->i_handle;
731 p_dvd->i_block_once = 1;
732 p_input->i_read_once = 8;
734 p_dvd->b_encrypted = DVDCheckCSS( p_input );
736 lseek( p_input->i_handle, 0, SEEK_SET );
738 /* Reading structures initialisation */
739 p_input->p_method_data =
740 // DVDNetlistInit( 4096, 8192, 4096, DVD_LB_SIZE, p_dvd->i_block_once );
741 DVDNetlistInit( 8192, 16384, 16384, DVD_LB_SIZE, p_dvd->i_block_once );
742 intf_WarnMsg( 2, "dvd info: netlist initialized" );
744 /* Ifo initialisation */
745 p_dvd->ifo = IfoInit( p_input->i_handle );
746 intf_WarnMsg( 2, "ifo info: vmg initialized" );
748 /* CSS initialisation */
749 if( p_dvd->b_encrypted )
751 p_dvd->p_css = CSSInit( p_input->i_handle );
753 if( p_dvd->p_css == NULL )
755 intf_ErrMsg( "css error: fatal failure" );
756 p_input->b_error = 1;
760 intf_WarnMsg( 2, "css info: initialized" );
763 /* Initialize ES structures */
764 input_InitStream( p_input, sizeof( stream_ps_data_t ) );
766 /* Set stream and area data */
767 vlc_mutex_lock( &p_input->stream.stream_lock );
769 #define srpt p_dvd->ifo.vmg.ptt_srpt
770 intf_WarnMsg( 2, "dvd info: number of titles: %d", srpt.i_ttu_nb );
772 #define area p_input->stream.pp_areas
773 /* We start from 1 here since area 0 is reserved for video_ts.vob */
774 for( i = 1 ; i <= srpt.i_ttu_nb ; i++ )
776 input_AddArea( p_input );
778 /* Should not be so simple eventually :
779 * are title Program Chains, or still something else ? */
782 /* Absolute start offset and size
783 * We can only set that with vts ifo, so we do it during the
784 * first call to DVDSetArea */
785 area[i]->i_start = 0;
788 /* Number of chapter */
789 area[i]->i_part_nb = srpt.p_tts[i-1].i_ptt_nb;
792 /* Offset to vts_i_0.ifo */
793 area[i]->i_plugin_data = p_dvd->ifo.i_off +
794 ( srpt.p_tts[i-1].i_ssector * DVD_LB_SIZE );
798 vlc_mutex_unlock( &p_input->stream.stream_lock );
800 /* Get requested title - if none try to find one where is the movie */
801 i_title = main_GetIntVariable( INPUT_TITLE_VAR, 1 );
802 if( i_title <= 0 || i_title > srpt.i_ttu_nb )
807 /* Get requested chapter - if none defaults to first one */
808 i_chapter = main_GetIntVariable( INPUT_CHAPTER_VAR, 1 );
814 p_input->stream.pp_areas[i_title]->i_part = i_chapter;
815 DVDSetArea( p_input, p_input->stream.pp_areas[i_title] );
817 /* For audio: first one if none or a not existing one specified */
818 i_audio = main_GetIntVariable( INPUT_CHANNEL_VAR, 1 );
821 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
825 input_ChangeES( p_input, p_input->stream.pp_es[i_audio], 1 );
827 i_spu = main_GetIntVariable( INPUT_SUBTITLE_VAR, 0 );
830 main_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
834 // input_ChangeES( p_input, p_input->stream.pp_es[i_spu], 1 );
840 /*****************************************************************************
841 * DVDEnd: frees unused data
842 *****************************************************************************/
843 static void DVDEnd( input_thread_t * p_input )
845 thread_dvd_data_t * p_dvd;
846 dvd_netlist_t * p_netlist;
848 p_dvd = (thread_dvd_data_t*)p_input->p_plugin_data;
849 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
851 CSSEnd( p_dvd->p_css );
852 // IfoEnd( p_dvd->p_ifo ) );
854 DVDNetlistEnd( p_netlist );
857 /*****************************************************************************
858 * DVDRead: reads data packets into the netlist.
859 *****************************************************************************
860 * Returns -1 in case of error, 0 if everything went well, and 1 in case of
862 *****************************************************************************/
863 static int DVDRead( input_thread_t * p_input,
864 data_packet_t ** pp_packets )
866 thread_dvd_data_t * p_dvd;
867 dvd_netlist_t * p_netlist;
869 struct iovec * p_vec;
870 struct data_packet_s * pp_data[p_input->i_read_once];
882 p_dvd = (thread_dvd_data_t *)p_input->p_plugin_data;
883 p_netlist = (dvd_netlist_t *)p_input->p_method_data;
884 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
886 /* Get an iovec pointer */
887 if( ( p_vec = DVDGetiovec( p_netlist ) ) == NULL )
889 intf_ErrMsg( "DVD: read error" );
893 /* Get the position of the next cell if we're at cell end */
895 if( p_dvd->i_sector > p_dvd->i_end_sector )
897 /* Find cell index in adress map */
898 if( DVDFindSector( p_dvd ) < 0 )
900 pp_packets[0] = NULL;
901 intf_ErrMsg( "dvd error: can't find next cell" );
905 /* Position the fd pointer on the right address */
906 i_off = lseek( p_dvd->i_fd,
907 p_dvd->i_title_start +
908 (off_t)( p_dvd->i_sector ) *DVD_LB_SIZE,
914 while( p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1 <
920 p_dvd->i_chapter = i_chapter;
922 // vlc_mutex_lock( &p_input->stream.stream_lock );
924 p_input->stream.p_selected_area->i_tell = i_off -
925 p_input->stream.p_selected_area->i_start;
926 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
928 // vlc_mutex_unlock( &p_input->stream.stream_lock );
933 i_read_bytes = readv( p_dvd->i_fd, p_vec, p_dvd->i_block_once );
934 i_read_blocks = ( i_read_bytes + 0x7ff ) >> 11;
936 /* Update netlist indexes */
937 DVDMviovec( p_netlist, i_read_blocks, pp_data );
939 /* Update global position */
940 p_dvd->i_sector += i_read_blocks;
944 /* Read headers to compute payload length */
945 for( i_iovec = 0 ; i_iovec < i_read_blocks ; i_iovec++ )
947 if( p_dvd->b_encrypted )
949 CSSDescrambleSector( p_dvd->p_css->pi_title_key,
950 p_vec[i_iovec].iov_base );
951 ((u8*)(p_vec[i_iovec].iov_base))[0x14] &= 0x8F;
956 while( i_pos < p_netlist->i_buffer_size )
958 pi_cur = (u8*)(p_vec[i_iovec].iov_base + i_pos);
961 if( U32_AT( pi_cur ) != 0x1BA )
963 /* That's the case for all packets, except pack header. */
964 i_packet_size = U16_AT( pi_cur + 4 );
965 pp_packets[i_packet] = DVDNewPtr( p_netlist );
970 if( ( pi_cur[4] & 0xC0 ) == 0x40 )
975 else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
982 intf_ErrMsg( "Unable to determine stream type" );
986 pp_packets[i_packet] = pp_data[i_iovec];
990 (*pp_data[i_iovec]->pi_refcount)++;
992 pp_packets[i_packet]->pi_refcount = pp_data[i_iovec]->pi_refcount;
994 pp_packets[i_packet]->p_buffer = pp_data[i_iovec]->p_buffer;
996 pp_packets[i_packet]->p_payload_start =
997 pp_packets[i_packet]->p_buffer + i_pos;
999 pp_packets[i_packet]->p_payload_end =
1000 pp_packets[i_packet]->p_payload_start + i_packet_size + 6;
1003 i_pos += i_packet_size + 6;
1007 pp_packets[i_packet] = NULL;
1009 // vlc_mutex_lock( &p_input->stream.stream_lock );
1011 p_input->stream.p_selected_area->i_tell +=
1012 p_dvd->i_block_once *DVD_LB_SIZE;
1013 b_eof = p_input->stream.p_selected_area->i_tell < p_dvd->i_size ? 0 : 1;
1015 // vlc_mutex_unlock( &p_input->stream.stream_lock );
1017 if( ( i_read_blocks == p_dvd->i_block_once ) && ( !b_eof ) )
1028 /*****************************************************************************
1029 * DVDRewind : reads a stream backward
1030 *****************************************************************************/
1031 static int DVDRewind( input_thread_t * p_input )
1036 /*****************************************************************************
1037 * DVDSeek : Goes to a given position on the stream ; this one is used by the
1038 * input and translate chronological position from input to logical postion
1041 * The lock should be taken before calling this function.
1042 *****************************************************************************/
1043 static void DVDSeek( input_thread_t * p_input, off_t i_off )
1045 thread_dvd_data_t * p_dvd;
1052 p_dvd = ( thread_dvd_data_t * )p_input->p_plugin_data;
1053 p_pgc = &p_dvd->ifo.vts.pgci_ti.p_srp[p_dvd->i_vts_title-1].pgc;
1055 /* update navigation data */
1056 p_dvd->i_sector = i_off >> 11;
1062 /* parse vobu address map to find program cell */
1063 while( p_pgc->p_cell_play_inf[i_prg_cell].i_lsector < p_dvd->i_sector )
1067 /* parse cell address map to find cell */
1068 while( p_dvd->ifo.vts.c_adt.p_cell_inf[i_cell].i_esector <=
1069 p_dvd->i_sector + 1 )
1074 p_dvd->i_prg_cell = i_prg_cell;
1075 p_dvd->i_cell = i_cell - 1; /* DVDFindSector will add one */
1077 /* check coherence of data */
1078 DVDFindSector( p_dvd );
1080 /* update chapter */
1081 while( p_pgc->prg_map.pi_entry_cell[i_chapter-1] - 1 < p_dvd->i_prg_cell )
1086 p_dvd->i_chapter = i_chapter;
1088 /* we have to take care of offset of beginning of title */
1089 i_pos = i_off + p_input->stream.p_selected_area->i_start;
1091 /* with DVD, we have to be on a sector boundary */
1092 i_pos = i_pos & (~0x7ff);
1094 i_pos = lseek( p_dvd->i_fd, i_pos, SEEK_SET );
1096 p_input->stream.p_selected_area->i_tell = i_pos -
1097 p_input->stream.p_selected_area->i_start;
1098 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;