add_integer: remove callback parameter
[vlc.git] / modules / access / dvdread.c
1 /*****************************************************************************
2  * dvdread.c : DvdRead input module for vlc
3  *****************************************************************************
4  * Copyright (C) 2001-2006 the VideoLAN team
5  * $Id$
6  *
7  * Authors: St├ęphane 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 }