1 /*****************************************************************************
2 * dvdread.c : DvdRead input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2004 VideoLAN
7 * Authors: Stéphane Borel <stef@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
29 #include <stdlib.h> /* malloc(), free() */
30 #include <string.h> /* strdup() */
33 #include <vlc/input.h>
37 #include "../demux/ps.h"
44 #include <sys/types.h>
48 #include <dvdread/dvd_reader.h>
49 #include <dvdread/ifo_types.h>
50 #include <dvdread/ifo_read.h>
51 #include <dvdread/nav_read.h>
52 #include <dvdread/nav_print.h>
54 /*****************************************************************************
56 *****************************************************************************/
57 #define ANGLE_TEXT N_("DVD angle")
58 #define ANGLE_LONGTEXT N_( \
59 "Allows you to select the default DVD angle." )
61 #define CACHING_TEXT N_("Caching value in ms")
62 #define CACHING_LONGTEXT N_( \
63 "Allows you to modify the default caching value for DVDread streams. " \
64 "This value should be set in millisecond units." )
66 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
67 #define CSSMETHOD_LONGTEXT N_( \
68 "Set the method used by libdvdcss for key decryption.\n" \
69 "title: decrypted title key is guessed from the encrypted sectors of " \
70 "the stream. Thus it should work with a file as well as the " \
71 "DVD device. But it sometimes takes much time to decrypt a title " \
72 "key and may even fail. With this method, the key is only checked "\
73 "at the beginning of each title, so it won't work if the key " \
74 "changes in the middle of a title.\n" \
75 "disc: the disc key is first cracked, then all title keys can be " \
76 "decrypted instantly, which allows us to check them often.\n" \
77 "key: the same as \"disc\" if you don't have a file with player keys " \
78 "at compilation time. If you do, the decryption of the disc key " \
79 "will be faster with this method. It is the one that was used by " \
81 "The default method is: key.")
83 static char *psz_css_list[] = { "title", "disc", "key" };
84 static char *psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
86 static int Open ( vlc_object_t * );
87 static void Close( vlc_object_t * );
90 set_shortname( _("DVD without menus") );
91 set_description( _("DVDRead Input (DVD without menu support)") );
92 set_category( CAT_INPUT );
93 set_subcategory( SUBCAT_INPUT_ACCESS );
94 add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
95 ANGLE_LONGTEXT, VLC_FALSE );
96 add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
97 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
98 add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
99 CSSMETHOD_LONGTEXT, VLC_TRUE );
100 change_string_list( psz_css_list, psz_css_list_text, 0 );
101 set_capability( "access_demux", 0 );
102 add_shortcut( "dvd" );
103 add_shortcut( "dvdread" );
104 add_shortcut( "dvdsimple" );
105 set_callbacks( Open, Close );
108 /* how many blocks DVDRead will read in each loop */
109 #define DVD_BLOCK_READ_ONCE 4
111 /*****************************************************************************
113 *****************************************************************************/
118 dvd_reader_t *p_dvdread;
121 ifo_handle_t *p_vmg_file;
122 ifo_handle_t *p_vts_file;
125 int i_chapter, i_chapters;
126 int i_angle, i_angles;
128 tt_srpt_t *p_tt_srpt;
137 /* Current title start/end blocks */
138 int i_title_start_block;
139 int i_title_end_block;
143 int i_title_start_cell;
144 int i_title_end_cell;
149 ps_track_t tk[PS_TK_COUNT];
153 input_title_t **titles;
162 static int Control ( demux_t *, int, va_list );
163 static int Demux ( demux_t * );
164 static int DemuxBlock( demux_t *, uint8_t *, int );
166 static void DemuxTitles( demux_t *, int * );
167 static void ESNew( demux_t *, int, int );
169 static int DvdReadSetArea ( demux_t *, int, int, int );
170 static void DvdReadSeek ( demux_t *, int );
171 static void DvdReadHandleDSI( demux_t *, uint8_t * );
172 static void DvdReadFindCell ( demux_t * );
174 /*****************************************************************************
176 *****************************************************************************/
177 static int Open( vlc_object_t *p_this )
179 demux_t *p_demux = (demux_t*)p_this;
182 char *psz_dvdcss_env;
183 dvd_reader_t *p_dvdread;
184 ifo_handle_t *p_vmg_file;
187 if( !p_demux->psz_path || !*p_demux->psz_path )
189 /* Only when selected */
190 if( !p_this->b_force ) return VLC_EGENERIC;
192 psz_name = var_CreateGetString( p_this, "dvd" );
193 if( !psz_name || !*psz_name )
195 if( psz_name ) free( psz_name );
199 else psz_name = strdup( p_demux->psz_path );
202 if( psz_name[0] && psz_name[1] == ':' &&
203 psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
206 /* Override environment variable DVDCSS_METHOD with config option
207 * (FIXME: this creates a small memory leak) */
208 psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
209 if( psz_dvdcss_env && *psz_dvdcss_env )
213 psz_env = malloc( strlen("DVDCSS_METHOD=") +
214 strlen( psz_dvdcss_env ) + 1 );
217 free( psz_dvdcss_env );
221 sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
225 if( psz_dvdcss_env ) free( psz_dvdcss_env );
228 if( !(p_dvdread = DVDOpen( psz_name )) )
230 msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
236 /* Ifo allocation & initialisation */
237 if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
239 msg_Warn( p_demux, "cannot open VMG info" );
242 msg_Dbg( p_demux, "VMG opened" );
244 /* Fill p_demux field */
245 p_demux->pf_demux = Demux;
246 p_demux->pf_control = Control;
247 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
248 memset( p_sys, 0, sizeof( demux_sys_t ) );
250 ps_track_init( p_sys->tk );
251 p_sys->i_aspect = -1;
252 p_sys->i_mux_rate = 0;
254 p_sys->p_dvdread = p_dvdread;
255 p_sys->p_vmg_file = p_vmg_file;
256 p_sys->p_title = NULL;
257 p_sys->p_vts_file = NULL;
259 p_sys->i_title = p_sys->i_chapter = -1;
261 var_Create( p_demux, "dvdread-angle", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
262 var_Get( p_demux, "dvdread-angle", &val );
263 p_sys->i_angle = val.i_int > 0 ? val.i_int : 1;
265 DemuxTitles( p_demux, &p_sys->i_angle );
266 DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle );
268 /* Update default_pts to a suitable value for dvdread access */
269 var_Create( p_demux, "dvdread-caching",
270 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
275 /*****************************************************************************
277 *****************************************************************************/
278 static void Close( vlc_object_t *p_this )
280 demux_t *p_demux = (demux_t*)p_this;
281 demux_sys_t *p_sys = p_demux->p_sys;
284 for( i = 0; i < PS_TK_COUNT; i++ )
286 ps_track_t *tk = &p_sys->tk[i];
289 es_format_Clean( &tk->fmt );
290 if( tk->es ) es_out_Del( p_demux->out, tk->es );
294 /* Close libdvdread */
295 if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
296 if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
297 if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
298 DVDClose( p_sys->p_dvdread );
303 /*****************************************************************************
305 *****************************************************************************/
306 static int Control( demux_t *p_demux, int i_query, va_list args )
308 demux_sys_t *p_sys = p_demux->p_sys;
312 input_title_t ***ppp_title;
318 case DEMUX_GET_POSITION:
320 pf = (double*) va_arg( args, double* );
322 if( p_sys->i_title_blocks > 0 )
323 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
329 case DEMUX_SET_POSITION:
331 f = (double)va_arg( args, double );
333 DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
338 pi64 = (int64_t*)va_arg( args, int64_t * );
339 if( p_sys->i_mux_rate > 0 )
341 *pi64 = (int64_t)1000000 * DVD_VIDEO_LB_LEN *
342 p_sys->i_title_offset / 50 / p_sys->i_mux_rate;
348 case DEMUX_GET_LENGTH:
349 pi64 = (int64_t*)va_arg( args, int64_t * );
350 if( p_sys->i_mux_rate > 0 )
352 *pi64 = (int64_t)1000000 * DVD_VIDEO_LB_LEN *
353 p_sys->i_title_blocks / 50 / p_sys->i_mux_rate;
359 /* Special for access_demux */
360 case DEMUX_CAN_PAUSE:
361 case DEMUX_CAN_CONTROL_PACE:
363 pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
367 case DEMUX_SET_PAUSE_STATE:
370 case DEMUX_GET_TITLE_INFO:
371 ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
372 pi_int = (int*)va_arg( args, int* );
373 *((int*)va_arg( args, int* )) = 1; /* Title offset */
374 *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
376 /* Duplicate title infos */
377 *pi_int = p_sys->i_titles;
378 *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
379 for( i = 0; i < p_sys->i_titles; i++ )
381 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
385 case DEMUX_SET_TITLE:
386 i = (int)va_arg( args, int );
387 if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
389 msg_Warn( p_demux, "cannot set title/chapter" );
392 p_demux->info.i_update |=
393 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
394 p_demux->info.i_title = i;
395 p_demux->info.i_seekpoint = 0;
398 case DEMUX_SET_SEEKPOINT:
399 i = (int)va_arg( args, int );
400 if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
402 msg_Warn( p_demux, "cannot set title/chapter" );
405 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
406 p_demux->info.i_seekpoint = i;
409 case DEMUX_GET_PTS_DELAY:
410 pi64 = (int64_t*)va_arg( args, int64_t * );
411 *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
414 /* TODO implement others */
420 /*****************************************************************************
422 *****************************************************************************/
423 static int Demux( demux_t *p_demux )
425 demux_sys_t *p_sys = p_demux->p_sys;
427 uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
428 int i_blocks_once, i_read;
432 * Playback by cell in this pgc, starting at the cell for our chapter.
436 * Check end of pack, and select the following one
438 if( !p_sys->i_pack_len )
440 /* Read NAV packet */
441 if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
444 msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
448 /* Basic check to be sure we don't have a empty title
449 * go to next title if so */
450 //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
452 /* Parse the contained dsi packet */
453 DvdReadHandleDSI( p_demux, p_buffer );
456 if( p_sys->i_next_vobu > p_sys->i_title_end_block )
458 if( p_sys->i_title + 1 >= p_sys->i_titles )
463 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
466 if( p_sys->i_pack_len >= 1024 )
468 msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
469 "This shouldn't happen!", p_sys->i_pack_len );
473 /* FIXME: Ugly kludge: we send the pack block to the input for it
474 * sometimes has a zero scr and restart the sync */
475 p_sys->i_cur_block++;
476 p_sys->i_title_offset++;
478 DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
481 if( p_sys->i_cur_block > p_sys->i_title_end_block )
483 if( p_sys->i_title + 1 >= p_sys->i_titles )
488 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
494 i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
495 p_sys->i_pack_len -= i_blocks_once;
498 i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
499 i_blocks_once, p_buffer );
500 if( i_read != i_blocks_once )
502 msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
503 i_read, i_blocks_once, p_sys->i_cur_block );
507 p_sys->i_cur_block += i_read;
508 p_sys->i_title_offset += i_read;
511 msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
512 i_read, p_sys->i_pack_len, p_sys->i_cur_block );
515 for( i = 0; i < i_read; i++ )
517 DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
526 /*****************************************************************************
527 * DemuxBlock: demux a given block
528 *****************************************************************************/
529 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
531 demux_sys_t *p_sys = p_demux->p_sys;
534 while( p < &pkt[i_pkt] )
536 int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
544 p_pkt = block_New( p_demux, i_size );
545 memcpy( p_pkt->p_buffer, p, i_size);
547 /* Parse it and send it */
548 switch( 0x100 | p[3] )
557 msg_Warn( p_demux, "received a PSM packet" );
559 else if( p[3] == 0xbb )
561 msg_Warn( p_demux, "received a SYSTEM packet" );
564 block_Release( p_pkt );
571 if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
573 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
574 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
576 block_Release( p_pkt );
581 int i_id = ps_pkt_id( p_pkt );
584 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
588 ESNew( p_demux, i_id, 0 );
590 if( tk->b_seen && tk->es &&
591 !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
593 es_out_Send( p_demux->out, tk->es, p_pkt );
597 block_Release( p_pkt );
602 block_Release( p_pkt );
614 /*****************************************************************************
615 * ESNew: register a new elementary stream
616 *****************************************************************************/
617 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
619 demux_sys_t *p_sys = p_demux->p_sys;
620 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
621 char psz_language[3];
623 if( tk->b_seen ) return;
625 if( ps_track_fill( tk, 0, i_id ) )
627 msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
631 psz_language[0] = psz_language[1] = psz_language[2] = 0;
632 if( i_lang && i_lang != 0xffff )
634 psz_language[0] = (i_lang >> 8)&0xff;
635 psz_language[1] = (i_lang )&0xff;
639 if( tk->fmt.i_cat == VIDEO_ES )
641 if( p_sys->i_aspect >= 0 )
643 tk->fmt.video.i_aspect = p_sys->i_aspect;
646 else if( tk->fmt.i_cat == AUDIO_ES )
649 /* find the audio number PLEASE find another way */
650 if( (i_id&0xbdf8) == 0xbd88 ) /* dts */
654 else if( (i_id&0xbdf0) == 0xbd80 ) /* a52 */
658 else if( (i_id&0xbdf0) == 0xbda0 ) /* lpcm */
662 else if( ( i_id&0xe0 ) == 0xc0 ) /* mpga */
667 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
669 else if( tk->fmt.i_cat == SPU_ES )
672 tk->fmt.subs.spu.palette[0] = 0xBeef;
673 memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
674 16 * sizeof( uint32_t ) );
676 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
679 tk->es = es_out_Add( p_demux->out, &tk->fmt );
680 tk->b_seen = VLC_TRUE;
683 /*****************************************************************************
684 * DvdReadSetArea: initialize input data for title x, chapter y.
685 * It should be called for each user navigation request.
686 *****************************************************************************
687 * Take care that i_title and i_chapter start from 0.
688 *****************************************************************************/
689 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
692 demux_sys_t *p_sys = p_demux->p_sys;
693 int pgc_id = 0, pgn = 0;
696 #define p_pgc p_sys->p_cur_pgc
697 #define p_vmg p_sys->p_vmg_file
698 #define p_vts p_sys->p_vts_file
700 if( i_title >= 0 && i_title < p_sys->i_titles &&
701 i_title != p_sys->i_title )
703 int i_start_cell, i_end_cell;
705 if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
706 if( p_vts != NULL ) ifoClose( p_vts );
707 p_sys->i_title = i_title;
710 * We have to load all title information
712 msg_Dbg( p_demux, "open VTS %d, for title %d",
713 p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
716 if( !( p_vts = ifoOpen( p_sys->p_dvdread,
717 p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
719 msg_Err( p_demux, "fatal error in vts ifo" );
723 /* Title position inside the selected vts */
724 p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
726 /* Find title start/end */
727 pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
728 pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
729 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
731 p_sys->i_title_start_cell =
732 i_start_cell = p_pgc->program_map[pgn - 1] - 1;
733 p_sys->i_title_start_block =
734 p_pgc->cell_playback[i_start_cell].first_sector;
736 p_sys->i_title_end_cell =
737 i_end_cell = p_pgc->nr_of_cells - 1;
738 p_sys->i_title_end_block =
739 p_pgc->cell_playback[i_end_cell].last_sector;
741 p_sys->i_title_offset = 0;
743 p_sys->i_title_blocks = 0;
744 for( i = i_start_cell; i <= i_end_cell; i++ )
746 p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
747 p_pgc->cell_playback[i].first_sector + 1;
750 msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
751 "start %d end %d blocks: %d",
752 i_title + 1, p_sys->i_ttn, pgc_id, pgn,
753 p_sys->i_title_start_block, p_sys->i_title_end_block,
754 p_sys->i_title_blocks );
757 * Set properties for current chapter
759 p_sys->i_chapter = 0;
761 p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
763 pgc_id = p_vts->vts_ptt_srpt->title[
764 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
765 pgn = p_vts->vts_ptt_srpt->title[
766 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
768 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
769 p_sys->i_pack_len = 0;
771 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
772 DvdReadFindCell( p_demux );
774 p_sys->i_next_vobu = p_sys->i_cur_block =
775 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
780 p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
781 if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
784 * We've got enough info, time to open the title set data.
786 if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
787 p_vmg->tt_srpt->title[i_title].title_set_nr,
788 DVD_READ_TITLE_VOBS ) ) )
790 msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
791 p_vmg->tt_srpt->title[i_title].title_set_nr );
795 //IfoPrintTitle( p_demux );
798 * Destroy obsolete ES by reinitializing program 0
799 * and find all ES in title with ifo data
801 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
803 for( i = 0; i < PS_TK_COUNT; i++ )
805 ps_track_t *tk = &p_sys->tk[i];
808 es_format_Clean( &tk->fmt );
809 if( tk->es ) es_out_Del( p_demux->out, tk->es );
811 tk->b_seen = VLC_FALSE;
814 if( p_demux->info.i_title != i_title )
816 p_demux->info.i_update |=
817 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
818 p_demux->info.i_title = i_title;
819 p_demux->info.i_seekpoint = 0;
822 /* TODO: re-add angles */
825 ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
826 p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
828 #define audio_control \
829 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
831 /* Audio ES, in the order they appear in the .ifo */
832 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
837 //IfoPrintAudio( p_demux, i );
839 /* Audio channel is active if first byte is 0x80 */
840 if( audio_control & 0x8000 )
842 i_position = ( audio_control & 0x7F00 ) >> 8;
844 msg_Dbg( p_demux, "audio position %d", i_position );
845 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
848 i_id = (0x80 + i_position) | 0xbd00;
851 case 0x03: /* MPEG audio */
852 i_id = 0xc000 + i_position;
854 case 0x04: /* LPCM */
855 i_id = (0xa0 + i_position) | 0xbd00;
858 i_id = (0x88 + i_position) | 0xbd00;
862 msg_Err( p_demux, "unknown audio type %.2x",
863 p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
866 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
867 vts_audio_attr[i - 1].lang_code );
872 #define spu_palette \
873 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
875 memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
877 #define spu_control \
878 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
881 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
886 //IfoPrintSpu( p_sys, i );
887 msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
889 if( spu_control & 0x80000000 )
891 /* there are several streams for one spu */
892 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
895 switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
897 case 1: /* letterbox */
898 i_position = spu_control & 0xff;
900 case 2: /* pan&scan */
901 i_position = ( spu_control >> 8 ) & 0xff;
903 default: /* widescreen */
904 i_position = ( spu_control >> 16 ) & 0xff;
911 i_position = ( spu_control >> 24 ) & 0x7F;
914 i_id = (0x20 + i_position) | 0xbd00;
916 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
917 vts_subp_attr[i - 1].lang_code );
923 else if( i_title != -1 && i_title != p_sys->i_title )
926 return VLC_EGENERIC; /* Couldn't set title */
933 if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
935 pgc_id = p_vts->vts_ptt_srpt->title[
936 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
937 pgn = p_vts->vts_ptt_srpt->title[
938 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
940 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
942 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
943 p_sys->i_chapter = i_chapter;
944 DvdReadFindCell( p_demux );
946 p_sys->i_title_offset = 0;
947 for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
949 p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
950 p_pgc->cell_playback[i].first_sector + 1;
953 p_sys->i_pack_len = 0;
954 p_sys->i_next_vobu = p_sys->i_cur_block =
955 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
957 if( p_demux->info.i_seekpoint != i_chapter )
959 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
960 p_demux->info.i_seekpoint = i_chapter;
963 else if( i_chapter != -1 )
966 return VLC_EGENERIC; /* Couldn't set chapter */
976 /*****************************************************************************
977 * DvdReadSeek : Goes to a given position on the stream.
978 *****************************************************************************
979 * This one is used by the input and translate chronological position from
980 * input to logical position on the device.
981 *****************************************************************************/
982 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
984 demux_sys_t *p_sys = p_demux->p_sys;
991 #define p_pgc p_sys->p_cur_pgc
992 #define p_vts p_sys->p_vts_file
995 i_block = i_block_offset;
996 for( i_cell = p_sys->i_title_start_cell;
997 i_cell <= p_sys->i_title_end_cell; i_cell++ )
999 if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1000 (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1002 i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1003 p_pgc->cell_playback[i_cell].first_sector + 1);
1005 if( i_cell > p_sys->i_title_end_cell )
1007 msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1010 i_block += p_pgc->cell_playback[i_cell].first_sector;
1011 p_sys->i_title_offset = i_block_offset;
1014 for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1016 int pgc_id, pgn, i_tmp;
1018 pgc_id = p_vts->vts_ptt_srpt->title[
1019 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1020 pgn = p_vts->vts_ptt_srpt->title[
1021 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1023 i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1025 if( i_tmp > i_cell ) break;
1028 if( i_chapter < p_sys->i_chapters &&
1029 p_demux->info.i_seekpoint != i_chapter )
1031 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1032 p_demux->info.i_seekpoint = i_chapter;
1036 while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1042 while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1043 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1049 msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1050 "cell_sector %d vobu_sector %d sub_cell_sector %d",
1051 i_cell, i_sub_cell, i_chapter, i_vobu,
1052 p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1053 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1054 p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1057 p_sys->i_cur_block = i_block;
1058 p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1059 p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1060 p_sys->i_cur_cell = i_cell;
1061 p_sys->i_chapter = i_chapter;
1062 DvdReadFindCell( p_demux );
1070 /*****************************************************************************
1072 *****************************************************************************/
1073 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1075 demux_sys_t *p_sys = p_demux->p_sys;
1077 navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1080 * Determine where we go next. These values are the ones we mostly
1083 p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1084 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1087 * If we're not at the end of this cell, we can determine the next
1088 * VOBU to display using the VOBU_SRI information section of the
1089 * DSI. Using this value correctly follows the current angle,
1090 * avoiding the doubled scenes in The Matrix, and makes our life
1094 p_sys->i_next_vobu = p_sys->i_cur_block +
1095 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1097 if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1098 && p_sys->i_angle > 1 )
1100 switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1103 /* Interleaved unit with no angle */
1104 if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1106 p_sys->i_next_vobu = p_sys->i_cur_block +
1107 p_sys->dsi_pack.sml_pbi.ilvu_sa;
1108 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1112 p_sys->i_next_vobu = p_sys->i_cur_block +
1113 p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1117 /* vobu is end of ilvu */
1118 if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1120 p_sys->i_next_vobu = p_sys->i_cur_block +
1121 p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1122 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1127 /* vobu is beginning of ilvu */
1131 /* entering interleaved section */
1133 /* non interleaved cells in interleaved section */
1135 p_sys->i_next_vobu = p_sys->i_cur_block +
1136 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1140 else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1142 p_sys->i_cur_cell = p_sys->i_next_cell;
1143 DvdReadFindCell( p_demux );
1145 p_sys->i_next_vobu =
1146 p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1150 msg_Dbg( p_demux, 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1151 p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1152 p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1153 p_sys->dsi_pack.dsi_gi.vobu_ea,
1154 p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1155 p_sys->dsi_pack.dsi_gi.vobu_c_idn );
1157 msg_Dbg( p_demux, 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1158 p_sys->dsi_pack.sml_pbi.category,
1159 p_sys->dsi_pack.sml_pbi.ilvu_ea,
1160 p_sys->dsi_pack.sml_pbi.ilvu_sa,
1161 p_sys->dsi_pack.sml_pbi.size );
1163 msg_Dbg( p_demux, 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1164 p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1165 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1166 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1170 /*****************************************************************************
1172 *****************************************************************************/
1173 static void DvdReadFindCell( demux_t *p_demux )
1175 demux_sys_t *p_sys = p_demux->p_sys;
1181 #define cell p_sys->p_cur_pgc->cell_playback
1183 if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1185 p_sys->i_cur_cell += p_sys->i_angle - 1;
1187 while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1191 p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1195 p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1200 if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1202 pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1203 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1204 pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1205 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1206 p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1208 if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1212 if( p_sys->i_chapter < p_sys->i_chapters &&
1213 p_demux->info.i_seekpoint != p_sys->i_chapter )
1215 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1216 p_demux->info.i_seekpoint = p_sys->i_chapter;
1221 /*****************************************************************************
1222 * DemuxTitles: get the titles/chapters structure
1223 *****************************************************************************/
1224 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1226 demux_sys_t *p_sys = p_demux->p_sys;
1232 /* Find out number of titles/chapters */
1233 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1235 i_titles = tt_srpt->nr_of_srpts;
1236 msg_Dbg( p_demux, "number of titles: %d", i_titles );
1238 for( i = 0; i < i_titles; i++ )
1240 int32_t i_chapters = 0;
1243 i_chapters = tt_srpt->title[i].nr_of_ptts;
1244 msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1246 t = vlc_input_title_New();
1248 for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1250 s = vlc_seekpoint_New();
1251 TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1254 TAB_APPEND( p_sys->i_titles, p_sys->titles, t );