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add_integer: remove callback parameter
[vlc/asuraparaju-public.git] / modules / access / dvdread.c
blob76b94a8cb376f7ff4dcaa857d250706da3eb4de6
1 /*****************************************************************************
2 * dvdread.c : DvdRead input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2006 the VideoLAN team
5 * $Id$
6 *
7 * Authors: Stéphane Borel <stef@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
24
25 /*****************************************************************************
26 * Preamble
27 *****************************************************************************/
28
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_input.h>
36 #include <vlc_access.h>
37 #include <vlc_charset.h>
38 #include <vlc_interface.h>
39 #include <vlc_dialog.h>
40
41 #include <vlc_iso_lang.h>
42
43 #include "../demux/ps.h"
44
45 #ifdef HAVE_UNISTD_H
46 # include <unistd.h>
47 #endif
48
49 #include <sys/types.h>
50
51 #include <dvdread/dvd_reader.h>
52 #include <dvdread/ifo_types.h>
53 #include <dvdread/ifo_read.h>
54 #include <dvdread/nav_read.h>
55 #include <dvdread/nav_print.h>
56
57 #include <assert.h>
58
59 /*****************************************************************************
60 * Module descriptor
61 *****************************************************************************/
62 #define ANGLE_TEXT N_("DVD angle")
63 #define ANGLE_LONGTEXT N_( \
64 "Default DVD angle." )
65
66 #define CACHING_TEXT N_("Caching value in ms")
67 #define CACHING_LONGTEXT N_( \
68 "Caching value for DVDs. " \
69 "This value should be set in milliseconds." )
70
71 static int Open ( vlc_object_t * );
72 static void Close( vlc_object_t * );
73
74 vlc_module_begin ()
75 set_shortname( N_("DVD without menus") )
76 set_description( N_("DVDRead Input (no menu support)") )
77 set_category( CAT_INPUT )
78 set_subcategory( SUBCAT_INPUT_ACCESS )
79 add_integer( "dvdread-angle", 1, ANGLE_TEXT,
80 ANGLE_LONGTEXT, false )
81 add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000,
82 CACHING_TEXT, CACHING_LONGTEXT, true )
83 add_obsolete_string( "dvdread-css-method" ) /* obsolete since 1.1.0 */
84 set_capability( "access_demux", 0 )
85 add_shortcut( "dvd", "dvdread", "dvdsimple" )
86 set_callbacks( Open, Close )
87 vlc_module_end ()
88
89 /* how many blocks DVDRead will read in each loop */
90 #define DVD_BLOCK_READ_ONCE 4
91
92 /*****************************************************************************
93 * Local prototypes
94 *****************************************************************************/
95
96 struct demux_sys_t
97 {
98 /* DVDRead state */
99 dvd_reader_t *p_dvdread;
100 dvd_file_t *p_title;
101
102 ifo_handle_t *p_vmg_file;
103 ifo_handle_t *p_vts_file;
104
105 int i_title;
106 int i_chapter, i_chapters;
107 int i_angle, i_angles;
108
109 tt_srpt_t *p_tt_srpt;
110 pgc_t *p_cur_pgc;
111 dsi_t dsi_pack;
112 int i_ttn;
113
114 int i_pack_len;
115 int i_cur_block;
116 int i_next_vobu;
117
118 int i_mux_rate;
119
120 /* Current title start/end blocks */
121 int i_title_start_block;
122 int i_title_end_block;
123 int i_title_blocks;
124 int i_title_offset;
125 mtime_t i_title_cur_time;
126
127 int i_title_start_cell;
128 int i_title_end_cell;
129 int i_cur_cell;
130 int i_next_cell;
131 mtime_t i_cell_cur_time;
132 mtime_t i_cell_duration;
133
134 /* Track */
135 ps_track_t tk[PS_TK_COUNT];
136
137 int i_titles;
138 input_title_t **titles;
139
140 /* Video */
141 int i_sar_num;
142 int i_sar_den;
143
144 /* SPU */
145 uint32_t clut[16];
146 };
147
148 static int Control ( demux_t *, int, va_list );
149 static int Demux ( demux_t * );
150 static int DemuxBlock( demux_t *, const uint8_t *, int );
151
152 static void DemuxTitles( demux_t *, int * );
153 static void ESNew( demux_t *, int, int );
154
155 static int DvdReadSetArea ( demux_t *, int, int, int );
156 static void DvdReadSeek ( demux_t *, int );
157 static void DvdReadHandleDSI( demux_t *, uint8_t * );
158 static void DvdReadFindCell ( demux_t * );
159
160 /*****************************************************************************
161 * Open:
162 *****************************************************************************/
163 static int Open( vlc_object_t *p_this )
164 {
165 demux_t *p_demux = (demux_t*)p_this;
166 demux_sys_t *p_sys;
167 char *psz_file;
168 ifo_handle_t *p_vmg_file;
169
170 if( !p_demux->psz_file || !*p_demux->psz_file )
171 {
172 /* Only when selected */
173 if( !p_demux->psz_access || !*p_demux->psz_access )
174 return VLC_EGENERIC;
175
176 psz_file = var_InheritString( p_this, "dvd" );
177 }
178 else
179 psz_file = strdup( p_demux->psz_file );
180
181 #ifdef WIN32
182 if( psz_file != NULL )
183 {
184 size_t flen = strlen( psz_file );
185 if( flen > 0 && psz_file[flen - 1] == '\\' )
186 psz_file[flen - 1] = '\0';
187 }
188 else
189 psz_file = strdup("");
190 #endif
191 if( unlikely(psz_file == NULL) )
192 return VLC_EGENERIC;
193
194 /* Open dvdread */
195 const char *psz_path = ToLocale( psz_file );
196 dvd_reader_t *p_dvdread = DVDOpen( psz_path );
197
198 LocaleFree( psz_path );
199 if( p_dvdread == NULL )
200 {
201 msg_Err( p_demux, "DVDRead cannot open source: %s", psz_file );
202 dialog_Fatal( p_demux, _("Playback failure"),
203 _("DVDRead could not open the disc \"%s\"."), psz_file );
204 free( psz_file );
205 return VLC_EGENERIC;
206 }
207 free( psz_file );
208
209 /* Ifo allocation & initialisation */
210 if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
211 {
212 msg_Warn( p_demux, "cannot open VMG info" );
213 return VLC_EGENERIC;
214 }
215 msg_Dbg( p_demux, "VMG opened" );
216
217 /* Fill p_demux field */
218 DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
219
220 ps_track_init( p_sys->tk );
221 p_sys->i_sar_num = 0;
222 p_sys->i_sar_den = 0;
223 p_sys->i_title_cur_time = (mtime_t) 0;
224 p_sys->i_cell_cur_time = (mtime_t) 0;
225 p_sys->i_cell_duration = (mtime_t) 0;
226
227 p_sys->p_dvdread = p_dvdread;
228 p_sys->p_vmg_file = p_vmg_file;
229 p_sys->p_title = NULL;
230 p_sys->p_vts_file = NULL;
231
232 p_sys->i_title = p_sys->i_chapter = -1;
233 p_sys->i_mux_rate = 0;
234
235 p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
236 if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
237
238 DemuxTitles( p_demux, &p_sys->i_angle );
239 if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
240 {
241 Close( p_this );
242 msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
243 p_sys->i_angle );
244 return VLC_EGENERIC;
245 }
246
247 /* Update default_pts to a suitable value for dvdread access */
248 var_Create( p_demux, "dvdread-caching",
249 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
250
251 return VLC_SUCCESS;
252 }
253
254 /*****************************************************************************
255 * Close:
256 *****************************************************************************/
257 static void Close( vlc_object_t *p_this )
258 {
259 demux_t *p_demux = (demux_t*)p_this;
260 demux_sys_t *p_sys = p_demux->p_sys;
261 int i;
262
263 for( i = 0; i < PS_TK_COUNT; i++ )
264 {
265 ps_track_t *tk = &p_sys->tk[i];
266 if( tk->b_seen )
267 {
268 es_format_Clean( &tk->fmt );
269 if( tk->es ) es_out_Del( p_demux->out, tk->es );
270 }
271 }
272
273 /* Free the array of titles */
274 for( int i = 0; i < p_sys->i_titles; i++ )
275 vlc_input_title_Delete( p_sys->titles[i] );
276 TAB_CLEAN( p_sys->i_titles, p_sys->titles );
277
278 /* Close libdvdread */
279 if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
280 if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
281 if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
282 DVDClose( p_sys->p_dvdread );
283
284 free( p_sys );
285 }
286
287 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
288 {
289 /* Macro to convert Binary Coded Decimal to Decimal */
290 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
291
292 double f_fps, f_ms;
293 int64_t i_micro_second = 0;
294
295 if (still_time == 0 || still_time == 0xFF)
296 {
297 i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
298 i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
299 i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
300
301 switch((dtime->frame_u & 0xc0) >> 6)
302 {
303 case 1:
304 f_fps = 25.0;
305 break;
306 case 3:
307 f_fps = 29.97;
308 break;
309 default:
310 f_fps = 2500.0;
311 break;
312 }
313 f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
314 i_micro_second += (int64_t)(f_ms * 1000.0);
315 }
316 else
317 {
318 i_micro_second = still_time;
319 i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
320 }
321
322 return i_micro_second;
323 }
324
325 /*****************************************************************************
326 * Control:
327 *****************************************************************************/
328 static int Control( demux_t *p_demux, int i_query, va_list args )
329 {
330 demux_sys_t *p_sys = p_demux->p_sys;
331 double f, *pf;
332 bool *pb;
333 int64_t *pi64;
334 input_title_t ***ppp_title;
335 int *pi_int;
336 int i;
337
338 switch( i_query )
339 {
340 case DEMUX_GET_POSITION:
341 {
342 pf = (double*) va_arg( args, double* );
343
344 if( p_sys->i_title_blocks > 0 )
345 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
346 else
347 *pf = 0.0;
348
349 return VLC_SUCCESS;
350 }
351 case DEMUX_SET_POSITION:
352 {
353 f = (double)va_arg( args, double );
354
355 DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
356
357 return VLC_SUCCESS;
358 }
359 case DEMUX_GET_TIME:
360 pi64 = (int64_t*)va_arg( args, int64_t * );
361 if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
362 {
363 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
364 p_sys->i_title_blocks * p_sys->i_title_offset;
365 return VLC_SUCCESS;
366 }
367 *pi64 = 0;
368 return VLC_EGENERIC;
369
370 case DEMUX_GET_LENGTH:
371 pi64 = (int64_t*)va_arg( args, int64_t * );
372 if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
373 {
374 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
375 return VLC_SUCCESS;
376 }
377 *pi64 = 0;
378 return VLC_EGENERIC;
379
380 /* Special for access_demux */
381 case DEMUX_CAN_PAUSE:
382 case DEMUX_CAN_SEEK:
383 case DEMUX_CAN_CONTROL_PACE:
384 /* TODO */
385 pb = (bool*)va_arg( args, bool * );
386 *pb = true;
387 return VLC_SUCCESS;
388
389 case DEMUX_SET_PAUSE_STATE:
390 return VLC_SUCCESS;
391
392 case DEMUX_GET_TITLE_INFO:
393 ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
394 pi_int = (int*)va_arg( args, int* );
395 *((int*)va_arg( args, int* )) = 1; /* Title offset */
396 *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
397
398 /* Duplicate title infos */
399 *pi_int = p_sys->i_titles;
400 *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
401 for( i = 0; i < p_sys->i_titles; i++ )
402 {
403 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
404 }
405 return VLC_SUCCESS;
406
407 case DEMUX_SET_TITLE:
408 i = (int)va_arg( args, int );
409 if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
410 {
411 msg_Warn( p_demux, "cannot set title/chapter" );
412 return VLC_EGENERIC;
413 }
414 p_demux->info.i_update |=
415 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
416 p_demux->info.i_title = i;
417 p_demux->info.i_seekpoint = 0;
418 return VLC_SUCCESS;
419
420 case DEMUX_SET_SEEKPOINT:
421 i = (int)va_arg( args, int );
422 if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
423 {
424 msg_Warn( p_demux, "cannot set title/chapter" );
425 return VLC_EGENERIC;
426 }
427 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
428 p_demux->info.i_seekpoint = i;
429 return VLC_SUCCESS;
430
431 case DEMUX_GET_PTS_DELAY:
432 pi64 = (int64_t*)va_arg( args, int64_t * );
433 *pi64 = var_GetInteger( p_demux, "dvdread-caching" )*1000;
434 return VLC_SUCCESS;
435
436 /* TODO implement others */
437 default:
438 return VLC_EGENERIC;
439 }
440 }
441
442 /*****************************************************************************
443 * Demux:
444 *****************************************************************************/
445 static int Demux( demux_t *p_demux )
446 {
447 demux_sys_t *p_sys = p_demux->p_sys;
448
449 uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
450 int i_blocks_once, i_read;
451 int i;
452
453 /*
454 * Playback by cell in this pgc, starting at the cell for our chapter.
455 */
456
457 /*
458 * Check end of pack, and select the following one
459 */
460 if( !p_sys->i_pack_len )
461 {
462 /* Read NAV packet */
463 if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
464 1, p_buffer ) != 1 )
465 {
466 msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
467 dialog_Fatal( p_demux, _("Playback failure"),
468 _("DVDRead could not read block %d."),
469 p_sys->i_next_vobu );
470 return -1;
471 }
472
473 /* Basic check to be sure we don't have a empty title
474 * go to next title if so */
475 //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
476
477 /* Parse the contained dsi packet */
478 DvdReadHandleDSI( p_demux, p_buffer );
479
480 /* End of title */
481 if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
482 {
483 if( p_sys->i_title + 1 >= p_sys->i_titles )
484 {
485 return 0; /* EOF */
486 }
487
488 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
489 }
490
491 if( p_sys->i_pack_len >= 1024 )
492 {
493 msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
494 "This shouldn't happen!", p_sys->i_pack_len );
495 return 0; /* EOF */
496 }
497
498 /* FIXME: Ugly kludge: we send the pack block to the input for it
499 * sometimes has a zero scr and restart the sync */
500 p_sys->i_cur_block++;
501 p_sys->i_title_offset++;
502
503 DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
504 }
505
506 if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
507 {
508 if( p_sys->i_title + 1 >= p_sys->i_titles )
509 {
510 return 0; /* EOF */
511 }
512
513 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
514 }
515
516 /*
517 * Read actual data
518 */
519 i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
520 p_sys->i_pack_len -= i_blocks_once;
521
522 /* Reads from DVD */
523 i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
524 i_blocks_once, p_buffer );
525 if( i_read != i_blocks_once )
526 {
527 msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
528 i_read, i_blocks_once, p_sys->i_cur_block );
529 dialog_Fatal( p_demux, _("Playback failure"),
530 _("DVDRead could not read %d/%d blocks at 0x%02x."),
531 i_read, i_blocks_once, p_sys->i_cur_block );
532 return -1;
533 }
534
535 p_sys->i_cur_block += i_read;
536 p_sys->i_title_offset += i_read;
537
538 #if 0
539 msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
540 i_read, p_sys->i_pack_len, p_sys->i_cur_block );
541 #endif
542
543 for( i = 0; i < i_read; i++ )
544 {
545 DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
546 DVD_VIDEO_LB_LEN );
547 }
548
549 #undef p_pgc
550
551 return 1;
552 }
553
554 /*****************************************************************************
555 * DemuxBlock: demux a given block
556 *****************************************************************************/
557 static int DemuxBlock( demux_t *p_demux, const uint8_t *p, int len )
558 {
559 demux_sys_t *p_sys = p_demux->p_sys;
560
561 while( len > 0 )
562 {
563 int i_size = ps_pkt_size( p, len );
564 if( i_size <= 0 || i_size > len )
565 {
566 break;
567 }
568
569 /* Create a block */
570 block_t *p_pkt = block_New( p_demux, i_size );
571 memcpy( p_pkt->p_buffer, p, i_size);
572
573 /* Parse it and send it */
574 switch( 0x100 | p[3] )
575 {
576 case 0x1b9:
577 case 0x1bb:
578 case 0x1bc:
579
580 #ifdef DVDREAD_DEBUG
581 if( p[3] == 0xbc )
582 {
583 msg_Warn( p_demux, "received a PSM packet" );
584 }
585 else if( p[3] == 0xbb )
586 {
587 msg_Warn( p_demux, "received a SYSTEM packet" );
588 }
589 #endif
590 block_Release( p_pkt );
591 break;
592
593 case 0x1ba:
594 {
595 int64_t i_scr;
596 int i_mux_rate;
597 if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
598 {
599 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
600 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
601 }
602 block_Release( p_pkt );
603 break;
604 }
605 default:
606 {
607 int i_id = ps_pkt_id( p_pkt );
608 if( i_id >= 0xc0 )
609 {
610 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
611
612 if( !tk->b_seen )
613 {
614 ESNew( p_demux, i_id, 0 );
615 }
616 if( tk->b_seen && tk->es &&
617 !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
618 {
619 es_out_Send( p_demux->out, tk->es, p_pkt );
620 }
621 else
622 {
623 block_Release( p_pkt );
624 }
625 }
626 else
627 {
628 block_Release( p_pkt );
629 }
630 break;
631 }
632 }
633
634 p += i_size;
635 len -= i_size;
636 }
637
638 return VLC_SUCCESS;
639 }
640
641 /*****************************************************************************
642 * ESNew: register a new elementary stream
643 *****************************************************************************/
644 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
645 {
646 demux_sys_t *p_sys = p_demux->p_sys;
647 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
648 char psz_language[3];
649
650 if( tk->b_seen ) return;
651
652 if( ps_track_fill( tk, 0, i_id ) )
653 {
654 msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
655 return;
656 }
657
658 psz_language[0] = psz_language[1] = psz_language[2] = 0;
659 if( i_lang && i_lang != 0xffff )
660 {
661 psz_language[0] = (i_lang >> 8)&0xff;
662 psz_language[1] = (i_lang )&0xff;
663 }
664
665 /* Add a new ES */
666 if( tk->fmt.i_cat == VIDEO_ES )
667 {
668 tk->fmt.video.i_sar_num = p_sys->i_sar_num;
669 tk->fmt.video.i_sar_den = p_sys->i_sar_den;
670 }
671 else if( tk->fmt.i_cat == AUDIO_ES )
672 {
673 int i_audio = -1;
674 /* find the audio number PLEASE find another way */
675 if( (i_id&0xbdf8) == 0xbd88 ) /* dts */
676 {
677 i_audio = i_id&0x07;
678 }
679 else if( (i_id&0xbdf0) == 0xbd80 ) /* a52 */
680 {
681 i_audio = i_id&0xf;
682 }
683 else if( (i_id&0xbdf0) == 0xbda0 ) /* lpcm */
684 {
685 i_audio = i_id&0x1f;
686 }
687 else if( ( i_id&0xe0 ) == 0xc0 ) /* mpga */
688 {
689 i_audio = i_id&0x1f;
690 }
691
692 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
693 }
694 else if( tk->fmt.i_cat == SPU_ES )
695 {
696 /* Palette */
697 tk->fmt.subs.spu.palette[0] = 0xBeef;
698 memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
699 16 * sizeof( uint32_t ) );
700
701 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
702 }
703
704 tk->es = es_out_Add( p_demux->out, &tk->fmt );
705 tk->b_seen = true;
706 }
707
708 /*****************************************************************************
709 * DvdReadSetArea: initialize input data for title x, chapter y.
710 * It should be called for each user navigation request.
711 *****************************************************************************
712 * Take care that i_title and i_chapter start from 0.
713 *****************************************************************************/
714 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
715 int i_angle )
716 {
717 VLC_UNUSED( i_angle );
718
719 demux_sys_t *p_sys = p_demux->p_sys;
720 int pgc_id = 0, pgn = 0;
721 int i;
722
723 #define p_pgc p_sys->p_cur_pgc
724 #define p_vmg p_sys->p_vmg_file
725 #define p_vts p_sys->p_vts_file
726
727 if( i_title >= 0 && i_title < p_sys->i_titles &&
728 i_title != p_sys->i_title )
729 {
730 int i_start_cell, i_end_cell;
731
732 if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
733 if( p_vts != NULL ) ifoClose( p_vts );
734 p_sys->i_title = i_title;
735
736 /*
737 * We have to load all title information
738 */
739 msg_Dbg( p_demux, "open VTS %d, for title %d",
740 p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
741
742 /* Ifo vts */
743 if( !( p_vts = ifoOpen( p_sys->p_dvdread,
744 p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
745 {
746 msg_Err( p_demux, "fatal error in vts ifo" );
747 return VLC_EGENERIC;
748 }
749
750 /* Title position inside the selected vts */
751 p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
752
753 /* Find title start/end */
754 pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
755 pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
756 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
757
758 p_sys->i_title_start_cell =
759 i_start_cell = p_pgc->program_map[pgn - 1] - 1;
760 p_sys->i_title_start_block =
761 p_pgc->cell_playback[i_start_cell].first_sector;
762
763 p_sys->i_title_end_cell =
764 i_end_cell = p_pgc->nr_of_cells - 1;
765 p_sys->i_title_end_block =
766 p_pgc->cell_playback[i_end_cell].last_sector;
767
768 p_sys->i_title_offset = 0;
769
770 p_sys->i_title_blocks = 0;
771 for( i = i_start_cell; i <= i_end_cell; i++ )
772 {
773 p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
774 p_pgc->cell_playback[i].first_sector + 1;
775 }
776
777 msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
778 "start %d end %d blocks: %d",
779 i_title + 1, p_sys->i_ttn, pgc_id, pgn,
780 p_sys->i_title_start_block, p_sys->i_title_end_block,
781 p_sys->i_title_blocks );
782
783 /*
784 * Set properties for current chapter
785 */
786 p_sys->i_chapter = 0;
787 p_sys->i_chapters =
788 p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
789
790 pgc_id = p_vts->vts_ptt_srpt->title[
791 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
792 pgn = p_vts->vts_ptt_srpt->title[
793 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
794
795 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
796 p_sys->i_pack_len = 0;
797 p_sys->i_next_cell =
798 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
799 DvdReadFindCell( p_demux );
800
801 p_sys->i_next_vobu = p_sys->i_cur_block =
802 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
803
804 /*
805 * Angle management
806 */
807 p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
808 if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
809
810 /*
811 * We've got enough info, time to open the title set data.
812 */
813 if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
814 p_vmg->tt_srpt->title[i_title].title_set_nr,
815 DVD_READ_TITLE_VOBS ) ) )
816 {
817 msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
818 p_vmg->tt_srpt->title[i_title].title_set_nr );
819 return VLC_EGENERIC;
820 }
821
822 //IfoPrintTitle( p_demux );
823
824 /*
825 * Destroy obsolete ES by reinitializing program 0
826 * and find all ES in title with ifo data
827 */
828 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
829
830 for( i = 0; i < PS_TK_COUNT; i++ )
831 {
832 ps_track_t *tk = &p_sys->tk[i];
833 if( tk->b_seen )
834 {
835 es_format_Clean( &tk->fmt );
836 if( tk->es ) es_out_Del( p_demux->out, tk->es );
837 }
838 tk->b_seen = false;
839 }
840
841 if( p_demux->info.i_title != i_title )
842 {
843 p_demux->info.i_update |=
844 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
845 p_demux->info.i_title = i_title;
846 p_demux->info.i_seekpoint = 0;
847 }
848
849 /* TODO: re-add angles */
850
851
852 ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
853 const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
854 int i_video_height = p_attr->video_format != 0 ? 576 : 480;
855 int i_video_width;
856 switch( p_attr->picture_size )
857 {
858 case 0:
859 i_video_width = 720;
860 break;
861 case 1:
862 i_video_width = 704;
863 break;
864 case 2:
865 i_video_width = 352;
866 break;
867 default:
868 case 3:
869 i_video_width = 352;
870 i_video_height /= 2;
871 break;
872 }
873 switch( p_attr->display_aspect_ratio )
874 {
875 case 0:
876 p_sys->i_sar_num = 4 * i_video_height;
877 p_sys->i_sar_den = 3 * i_video_width;
878 break;
879 case 3:
880 p_sys->i_sar_num = 16 * i_video_height;
881 p_sys->i_sar_den = 9 * i_video_width;
882 break;
883 default:
884 p_sys->i_sar_num = 0;
885 p_sys->i_sar_den = 0;
886 break;
887 }
888
889 #define audio_control \
890 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
891
892 /* Audio ES, in the order they appear in the .ifo */
893 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
894 {
895 int i_position = 0;
896 uint16_t i_id;
897
898 //IfoPrintAudio( p_demux, i );
899
900 /* Audio channel is active if first byte is 0x80 */
901 if( audio_control & 0x8000 )
902 {
903 i_position = ( audio_control & 0x7F00 ) >> 8;
904
905 msg_Dbg( p_demux, "audio position %d", i_position );
906 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
907 {
908 case 0x00: /* A52 */
909 i_id = (0x80 + i_position) | 0xbd00;
910 break;
911 case 0x02:
912 case 0x03: /* MPEG audio */
913 i_id = 0xc000 + i_position;
914 break;
915 case 0x04: /* LPCM */
916 i_id = (0xa0 + i_position) | 0xbd00;
917 break;
918 case 0x06: /* DTS */
919 i_id = (0x88 + i_position) | 0xbd00;
920 break;
921 default:
922 i_id = 0;
923 msg_Err( p_demux, "unknown audio type %.2x",
924 p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
925 }
926
927 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
928 vts_audio_attr[i - 1].lang_code );
929 }
930 }
931 #undef audio_control
932
933 #define spu_palette \
934 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
935
936 memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
937
938 #define spu_control \
939 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
940
941 /* Sub Picture ES */
942 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
943 {
944 int i_position = 0;
945 uint16_t i_id;
946
947 //IfoPrintSpu( p_sys, i );
948 msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
949
950 if( spu_control & 0x80000000 )
951 {
952 /* there are several streams for one spu */
953 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
954 {
955 /* 16:9 */
956 switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
957 {
958 case 1: /* letterbox */
959 i_position = spu_control & 0xff;
960 break;
961 case 2: /* pan&scan */
962 i_position = ( spu_control >> 8 ) & 0xff;
963 break;
964 default: /* widescreen */
965 i_position = ( spu_control >> 16 ) & 0xff;
966 break;
967 }
968 }
969 else
970 {
971 /* 4:3 */
972 i_position = ( spu_control >> 24 ) & 0x7F;
973 }
974
975 i_id = (0x20 + i_position) | 0xbd00;
976
977 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
978 vts_subp_attr[i - 1].lang_code );
979 }
980 }
981 #undef spu_control
982
983 }
984 else if( i_title != -1 && i_title != p_sys->i_title )
985
986 {
987 return VLC_EGENERIC; /* Couldn't set title */
988 }
989
990 /*
991 * Chapter selection
992 */
993
994 if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
995 {
996 pgc_id = p_vts->vts_ptt_srpt->title[
997 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
998 pgn = p_vts->vts_ptt_srpt->title[
999 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1000
1001 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1002
1003 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1004 p_sys->i_chapter = i_chapter;
1005 DvdReadFindCell( p_demux );
1006
1007 p_sys->i_title_offset = 0;
1008 for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1009 {
1010 p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1011 p_pgc->cell_playback[i].first_sector + 1;
1012 }
1013
1014 p_sys->i_pack_len = 0;
1015 p_sys->i_next_vobu = p_sys->i_cur_block =
1016 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1017
1018 if( p_demux->info.i_seekpoint != i_chapter )
1019 {
1020 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1021 p_demux->info.i_seekpoint = i_chapter;
1022 }
1023 }
1024 else if( i_chapter != -1 )
1025
1026 {
1027 return VLC_EGENERIC; /* Couldn't set chapter */
1028 }
1029
1030 #undef p_pgc
1031 #undef p_vts
1032 #undef p_vmg
1033
1034 return VLC_SUCCESS;
1035 }
1036
1037 /*****************************************************************************
1038 * DvdReadSeek : Goes to a given position on the stream.
1039 *****************************************************************************
1040 * This one is used by the input and translate chronological position from
1041 * input to logical position on the device.
1042 *****************************************************************************/
1043 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1044 {
1045 demux_sys_t *p_sys = p_demux->p_sys;
1046 int i_chapter = 0;
1047 int i_cell = 0;
1048 int i_vobu = 0;
1049 int i_sub_cell = 0;
1050 int i_block;
1051
1052 #define p_pgc p_sys->p_cur_pgc
1053 #define p_vts p_sys->p_vts_file
1054
1055 /* Find cell */
1056 i_block = i_block_offset;
1057 for( i_cell = p_sys->i_title_start_cell;
1058 i_cell <= p_sys->i_title_end_cell; i_cell++ )
1059 {
1060 if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1061 (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1062
1063 i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1064 p_pgc->cell_playback[i_cell].first_sector + 1);
1065 }
1066 if( i_cell > p_sys->i_title_end_cell )
1067 {
1068 msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1069 return;
1070 }
1071 i_block += p_pgc->cell_playback[i_cell].first_sector;
1072 p_sys->i_title_offset = i_block_offset;
1073
1074 /* Find chapter */
1075 for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1076 {
1077 int pgc_id, pgn, i_tmp;
1078
1079 pgc_id = p_vts->vts_ptt_srpt->title[
1080 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1081 pgn = p_vts->vts_ptt_srpt->title[
1082 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1083
1084 i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1085
1086 if( i_tmp > i_cell ) break;
1087 }
1088
1089 if( i_chapter < p_sys->i_chapters &&
1090 p_demux->info.i_seekpoint != i_chapter )
1091 {
1092 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1093 p_demux->info.i_seekpoint = i_chapter;
1094 }
1095
1096 /* Find vobu */
1097 while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1098 {
1099 i_vobu++;
1100 }
1101
1102 /* Find sub_cell */
1103 while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1104 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1105 {
1106 i_sub_cell++;
1107 }
1108
1109 #if 1
1110 msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1111 "cell_sector %d vobu_sector %d sub_cell_sector %d",
1112 i_cell, i_sub_cell, i_chapter, i_vobu,
1113 p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1114 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1115 p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1116 #endif
1117
1118 p_sys->i_cur_block = i_block;
1119 p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1120 p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1121 p_sys->i_cur_cell = i_cell;
1122 p_sys->i_chapter = i_chapter;
1123 DvdReadFindCell( p_demux );
1124
1125 #undef p_vts
1126 #undef p_pgc
1127
1128 return;
1129 }
1130
1131 /*****************************************************************************
1132 * DvdReadHandleDSI
1133 *****************************************************************************/
1134 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1135 {
1136 demux_sys_t *p_sys = p_demux->p_sys;
1137
1138 navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1139
1140 /*
1141 * Determine where we go next. These values are the ones we mostly
1142 * care about.
1143 */
1144 p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1145 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1146
1147 /*
1148 * Store the timecodes so we can get the current time
1149 */
1150 p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1151 p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1152
1153 /*
1154 * If we're not at the end of this cell, we can determine the next
1155 * VOBU to display using the VOBU_SRI information section of the
1156 * DSI. Using this value correctly follows the current angle,
1157 * avoiding the doubled scenes in The Matrix, and makes our life
1158 * really happy.
1159 */
1160
1161 p_sys->i_next_vobu = p_sys->i_cur_block +
1162 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1163
1164 if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1165 && p_sys->i_angle > 1 )
1166 {
1167 switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1168 {
1169 case 0x4:
1170 /* Interleaved unit with no angle */
1171 if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1172 {
1173 p_sys->i_next_vobu = p_sys->i_cur_block +
1174 p_sys->dsi_pack.sml_pbi.ilvu_sa;
1175 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1176 }
1177 else
1178 {
1179 p_sys->i_next_vobu = p_sys->i_cur_block +
1180 p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1181 }
1182 break;
1183 case 0x5:
1184 /* vobu is end of ilvu */
1185 if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1186 {
1187 p_sys->i_next_vobu = p_sys->i_cur_block +
1188 p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1189 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1190
1191 break;
1192 }
1193 case 0x6:
1194 /* vobu is beginning of ilvu */
1195 case 0x9:
1196 /* next scr is 0 */
1197 case 0xa:
1198 /* entering interleaved section */
1199 case 0x8:
1200 /* non interleaved cells in interleaved section */
1201 default:
1202 p_sys->i_next_vobu = p_sys->i_cur_block +
1203 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1204 break;
1205 }
1206 }
1207 else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1208 {
1209 p_sys->i_cur_cell = p_sys->i_next_cell;
1210
1211 /* End of title */
1212 if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1213
1214 DvdReadFindCell( p_demux );
1215
1216 p_sys->i_next_vobu =
1217 p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1218
1219 p_sys->i_cell_duration = (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 );
1220 }
1221
1222
1223 #if 0
1224 msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1225 p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1226 p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1227 p_sys->dsi_pack.dsi_gi.vobu_ea,
1228 p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1229 p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1230 dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1231
1232 msg_Dbg( p_demux, "cell duration: %lld",
1233 (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1234
1235 msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1236 p_sys->dsi_pack.sml_pbi.category,
1237 p_sys->dsi_pack.sml_pbi.ilvu_ea,
1238 p_sys->dsi_pack.sml_pbi.ilvu_sa,
1239 p_sys->dsi_pack.sml_pbi.size );
1240
1241 msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1242 p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1243 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1244 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1245 #endif
1246 }
1247
1248 /*****************************************************************************
1249 * DvdReadFindCell
1250 *****************************************************************************/
1251 static void DvdReadFindCell( demux_t *p_demux )
1252 {
1253 demux_sys_t *p_sys = p_demux->p_sys;
1254
1255 pgc_t *p_pgc;
1256 int pgc_id, pgn;
1257 int i = 0;
1258
1259 #define cell p_sys->p_cur_pgc->cell_playback
1260
1261 if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1262 {
1263 p_sys->i_cur_cell += p_sys->i_angle - 1;
1264
1265 while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1266 {
1267 i++;
1268 }
1269 p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1270 }
1271 else
1272 {
1273 p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1274 }
1275
1276 #undef cell
1277
1278 if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1279
1280 pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1281 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1282 pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1283 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1284 p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1285
1286 if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1287 {
1288 p_sys->i_chapter++;
1289
1290 if( p_sys->i_chapter < p_sys->i_chapters &&
1291 p_demux->info.i_seekpoint != p_sys->i_chapter )
1292 {
1293 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1294 p_demux->info.i_seekpoint = p_sys->i_chapter;
1295 }
1296 }
1297 }
1298
1299 /*****************************************************************************
1300 * DemuxTitles: get the titles/chapters structure
1301 *****************************************************************************/
1302 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1303 {
1304 VLC_UNUSED( pi_angle );
1305
1306 demux_sys_t *p_sys = p_demux->p_sys;
1307 input_title_t *t;
1308 seekpoint_t *s;
1309
1310 /* Find out number of titles/chapters */
1311 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1312
1313 int32_t i_titles = tt_srpt->nr_of_srpts;
1314 msg_Dbg( p_demux, "number of titles: %d", i_titles );
1315
1316 for( int i = 0; i < i_titles; i++ )
1317 {
1318 int32_t i_chapters = 0;
1319 int j;
1320
1321 i_chapters = tt_srpt->title[i].nr_of_ptts;
1322 msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1323
1324 t = vlc_input_title_New();
1325
1326 for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1327 {
1328 s = vlc_seekpoint_New();
1329 TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1330 }
1331
1332 TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1333 }
1334
1335 #undef tt_srpt
1336 }