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 CACHING_TEXT N_("caching value in ms")
58 #define CACHING_LONGTEXT N_( \
59 "Allows you to modify the default caching value for DVDread streams. " \
60 "This value should be set in millisecond units." )
62 #define CSSMETHOD_TEXT N_("Method used by libdvdcss for decryption")
63 #define CSSMETHOD_LONGTEXT N_( \
64 "Set the method used by libdvdcss for key decryption.\n" \
65 "title: decrypted title key is guessed from the encrypted sectors of " \
66 "the stream. Thus it should work with a file as well as the " \
67 "DVD device. But it sometimes takes much time to decrypt a title " \
68 "key and may even fail. With this method, the key is only checked "\
69 "at the beginning of each title, so it won't work if the key " \
70 "changes in the middle of a title.\n" \
71 "disc: the disc key is first cracked, then all title keys can be " \
72 "decrypted instantly, which allows us to check them often.\n" \
73 "key: the same as \"disc\" if you don't have a file with player keys " \
74 "at compilation time. If you do, the decryption of the disc key " \
75 "will be faster with this method. It is the one that was used by " \
77 "The default method is: key.")
79 static char *psz_css_list[] = { "title", "disc", "key" };
80 static char *psz_css_list_text[] = { N_("title"), N_("Disc"), N_("Key") };
82 static int Open ( vlc_object_t * );
83 static void Close( vlc_object_t * );
86 set_description( _("DVDRead Input") );
87 add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
88 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
89 add_string( "dvdread-css-method", NULL, NULL, CSSMETHOD_TEXT,
90 CSSMETHOD_LONGTEXT, VLC_TRUE );
91 change_string_list( psz_css_list, psz_css_list_text, 0 );
92 set_capability( "access_demux", 0 );
93 //add_shortcut( "dvd" );
94 add_shortcut( "dvdread" );
95 add_shortcut( "dvdsimple" );
96 set_callbacks( Open, Close );
99 /* how many blocks DVDRead will read in each loop */
100 #define DVD_BLOCK_READ_ONCE 4
102 /*****************************************************************************
104 *****************************************************************************/
109 dvd_reader_t *p_dvdread;
112 ifo_handle_t *p_vmg_file;
113 ifo_handle_t *p_vts_file;
116 int i_chapter, i_chapters;
117 int i_angle, i_angles;
119 tt_srpt_t *p_tt_srpt;
128 /* Current title start/end blocks */
129 int i_title_start_block;
130 int i_title_end_block;
134 int i_title_start_cell;
135 int i_title_end_cell;
140 ps_track_t tk[PS_TK_COUNT];
143 input_title_t **titles;
152 static char *ParseCL( vlc_object_t *, char *, vlc_bool_t, int *, int *, int *);
154 static int Control ( demux_t *, int, va_list );
155 static int Demux ( demux_t * );
156 static int DemuxBlock( demux_t *, uint8_t *, int );
158 static void DemuxTitles( demux_t *, int *, int *, int * );
159 static void ESNew( demux_t *, int, int );
161 static int DvdReadSetArea ( demux_t *, int, int, int );
162 static void DvdReadSeek ( demux_t *, int );
163 static void DvdReadHandleDSI( demux_t *, uint8_t * );
164 static void DvdReadFindCell ( demux_t * );
166 /*****************************************************************************
168 *****************************************************************************/
169 static int Open( vlc_object_t *p_this )
171 demux_t *p_demux = (demux_t*)p_this;
173 int i_title, i_chapter, i_angle;
175 char *psz_dvdcss_env;
176 dvd_reader_t *p_dvdread;
177 ifo_handle_t *p_vmg_file;
179 psz_name = ParseCL( VLC_OBJECT(p_demux), p_demux->psz_path, VLC_TRUE,
180 &i_title, &i_chapter, &i_angle );
186 /* Override environment variable DVDCSS_METHOD with config option
187 * (FIXME: this creates a small memory leak) */
188 psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
189 if( psz_dvdcss_env && *psz_dvdcss_env )
193 psz_env = malloc( strlen("DVDCSS_METHOD=") +
194 strlen( psz_dvdcss_env ) + 1 );
198 free( psz_dvdcss_env );
202 sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
206 if( psz_dvdcss_env ) free( psz_dvdcss_env );
209 if( !(p_dvdread = DVDOpen( psz_name )) )
211 msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
217 /* Ifo allocation & initialisation */
218 if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
220 msg_Warn( p_demux, "cannot open VMG info" );
223 msg_Dbg( p_demux, "VMG opened" );
225 /* Fill p_demux field */
226 p_demux->pf_demux = Demux;
227 p_demux->pf_control = Control;
228 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
229 memset( p_sys, 0, sizeof( demux_sys_t ) );
231 ps_track_init( p_sys->tk );
232 p_sys->i_aspect = -1;
234 p_sys->p_dvdread = p_dvdread;
235 p_sys->p_vmg_file = p_vmg_file;
236 p_sys->p_title = NULL;
237 p_sys->p_vts_file = NULL;
239 p_sys->i_title = p_sys->i_chapter = -1;
240 p_sys->i_angle = i_angle;
242 DemuxTitles( p_demux, &i_title, &i_chapter, &i_angle );
244 DvdReadSetArea( p_demux, i_title, i_chapter, i_angle );
246 /* Update default_pts to a suitable value for dvdread access */
247 var_Create( p_demux, "dvdread-caching",
248 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
253 /*****************************************************************************
255 *****************************************************************************/
256 static void Close( vlc_object_t *p_this )
258 demux_t *p_demux = (demux_t*)p_this;
259 demux_sys_t *p_sys = p_demux->p_sys;
262 for( i = 0; i < PS_TK_COUNT; i++ )
264 ps_track_t *tk = &p_sys->tk[i];
267 es_format_Clean( &tk->fmt );
268 if( tk->es ) es_out_Del( p_demux->out, tk->es );
272 /* Close libdvdread */
273 if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
274 if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
275 if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
276 DVDClose( p_sys->p_dvdread );
281 /*****************************************************************************
283 *****************************************************************************/
284 static int Control( demux_t *p_demux, int i_query, va_list args )
286 demux_sys_t *p_sys = p_demux->p_sys;
290 input_title_t ***ppp_title;
296 case DEMUX_GET_POSITION:
298 pf = (double*) va_arg( args, double* );
300 if( p_sys->i_title_blocks > 0 )
301 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
307 case DEMUX_SET_POSITION:
309 f = (double)va_arg( args, double );
311 DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
316 /* Special for access_demux */
317 case DEMUX_CAN_PAUSE:
318 case DEMUX_CAN_CONTROL_PACE:
320 pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
324 case DEMUX_SET_PAUSE_STATE:
327 case DEMUX_GET_TITLE_INFO:
328 ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
329 pi_int = (int*)va_arg( args, int* );
331 /* Duplicate title infos */
332 *pi_int = p_sys->i_titles;
333 *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
334 for( i = 0; i < p_sys->i_titles; i++ )
336 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
340 case DEMUX_SET_TITLE:
341 i = (int)va_arg( args, int );
342 if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
344 msg_Warn( p_demux, "cannot set title/chapter" );
347 p_demux->info.i_update |=
348 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
349 p_demux->info.i_title = i;
350 p_demux->info.i_seekpoint = 0;
353 case DEMUX_SET_SEEKPOINT:
354 i = (int)va_arg( args, int );
355 if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
357 msg_Warn( p_demux, "cannot set title/chapter" );
360 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
361 p_demux->info.i_seekpoint = i;
364 case DEMUX_GET_PTS_DELAY:
365 pi64 = (int64_t*)va_arg( args, int64_t * );
366 *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
369 /* TODO implement others */
375 /*****************************************************************************
377 *****************************************************************************/
378 static int Demux( demux_t *p_demux )
380 demux_sys_t *p_sys = p_demux->p_sys;
382 uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
383 int i_blocks_once, i_read;
387 * Playback by cell in this pgc, starting at the cell for our chapter.
391 * Check end of pack, and select the following one
393 if( !p_sys->i_pack_len )
395 /* Read NAV packet */
396 if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
399 msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
403 /* Basic check to be sure we don't have a empty title
404 * go to next title if so */
405 //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
407 /* Parse the contained dsi packet */
408 DvdReadHandleDSI( p_demux, p_buffer );
411 if( p_sys->i_next_vobu > p_sys->i_title_end_block )
413 if( p_sys->i_title + 1 >= p_sys->i_titles ) return 0; /* EOF */
415 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
418 if( p_sys->i_pack_len >= 1024 )
420 msg_Err( p_demux, "i_pack_len >= 1024. This shouldn't happen!" );
424 /* FIXME: Ugly kludge: we send the pack block to the input for it
425 * sometimes has a zero scr and restart the sync */
426 p_sys->i_cur_block++;
427 p_sys->i_title_offset++;
429 DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
432 if( p_sys->i_cur_block > p_sys->i_title_end_block )
434 if( p_sys->i_title + 1 >= p_sys->i_titles ) return 0; /* EOF */
436 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
442 i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
443 p_sys->i_pack_len -= i_blocks_once;
446 i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
447 i_blocks_once, p_buffer );
448 if( i_read != i_blocks_once )
450 msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
451 i_read, i_blocks_once, p_sys->i_cur_block );
455 p_sys->i_cur_block += i_read;
456 p_sys->i_title_offset += i_read;
459 msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
460 i_read, p_sys->i_pack_len, p_sys->i_cur_block );
463 for( i = 0; i < i_read; i++ )
465 DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
474 /*****************************************************************************
475 * DemuxBlock: demux a given block
476 *****************************************************************************/
477 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
479 demux_sys_t *p_sys = p_demux->p_sys;
482 while( p < &pkt[i_pkt] )
484 int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
492 p_pkt = block_New( p_demux, i_size );
493 memcpy( p_pkt->p_buffer, p, i_size);
495 /* Parse it and send it */
496 switch( 0x100 | p[3] )
505 msg_Warn( p_demux, "received a PSM packet" );
507 else if( p[3] == 0xbb )
509 msg_Warn( p_demux, "received a SYSTEM packet" );
512 block_Release( p_pkt );
519 if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
521 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
523 block_Release( p_pkt );
528 int i_id = ps_pkt_id( p_pkt );
531 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
535 ESNew( p_demux, i_id, 0 );
537 if( tk->b_seen && tk->es &&
538 !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
540 es_out_Send( p_demux->out, tk->es, p_pkt );
544 block_Release( p_pkt );
549 block_Release( p_pkt );
561 /*****************************************************************************
562 * ESNew: register a new elementary stream
563 *****************************************************************************/
564 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
566 demux_sys_t *p_sys = p_demux->p_sys;
567 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
568 char psz_language[3];
570 if( tk->b_seen ) return;
572 if( ps_track_fill( tk, i_id ) )
574 msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
578 psz_language[0] = psz_language[1] = psz_language[2] = 0;
579 if( i_lang && i_lang != 0xffff )
581 psz_language[0] = (i_lang >> 8)&0xff;
582 psz_language[1] = (i_lang )&0xff;
586 if( tk->fmt.i_cat == VIDEO_ES )
588 if( p_sys->i_aspect >= 0 )
590 tk->fmt.video.i_aspect = p_sys->i_aspect;
593 else if( tk->fmt.i_cat == AUDIO_ES )
596 /* find the audio number PLEASE find another way */
597 if( (i_id&0xbdf8) == 0xbd88 ) /* dts */
601 else if( (i_id&0xbdf0) == 0xbd80 ) /* a52 */
605 else if( (i_id&0xbdf0) == 0xbda0 ) /* lpcm */
609 else if( ( i_id&0xe0 ) == 0xc0 ) /* mpga */
614 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
616 else if( tk->fmt.i_cat == SPU_ES )
619 tk->fmt.subs.spu.palette[0] = 0xBeef;
620 memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
621 16 * sizeof( uint32_t ) );
623 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
626 tk->es = es_out_Add( p_demux->out, &tk->fmt );
627 tk->b_seen = VLC_TRUE;
630 /*****************************************************************************
631 * DvdReadSetArea: initialize input data for title x, chapter y.
632 * It should be called for each user navigation request.
633 *****************************************************************************
634 * Take care that i_title and i_chapter start from 0.
635 *****************************************************************************/
636 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
639 demux_sys_t *p_sys = p_demux->p_sys;
640 int pgc_id = 0, pgn = 0;
643 #define p_pgc p_sys->p_cur_pgc
644 #define p_vmg p_sys->p_vmg_file
645 #define p_vts p_sys->p_vts_file
647 if( i_title >= 0 && i_title < p_sys->i_titles &&
648 i_title != p_sys->i_title )
650 int i_start_cell, i_end_cell;
652 if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
653 if( p_vts != NULL ) ifoClose( p_vts );
654 p_sys->i_title = i_title;
657 * We have to load all title information
659 msg_Dbg( p_demux, "open VTS %d, for title %d",
660 p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
663 if( !( p_vts = ifoOpen( p_sys->p_dvdread,
664 p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
666 msg_Err( p_demux, "fatal error in vts ifo" );
670 /* Title position inside the selected vts */
671 p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
673 /* Find title start/end */
674 pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
675 pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
676 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
678 p_sys->i_title_start_cell =
679 i_start_cell = p_pgc->program_map[pgn - 1] - 1;
680 p_sys->i_title_start_block =
681 p_pgc->cell_playback[i_start_cell].first_sector;
683 p_sys->i_title_end_cell =
684 i_end_cell = p_pgc->nr_of_cells - 1;
685 p_sys->i_title_end_block =
686 p_pgc->cell_playback[i_end_cell].last_sector;
688 p_sys->i_title_offset = 0;
690 p_sys->i_title_blocks = 0;
691 for( i = i_start_cell; i <= i_end_cell; i++ )
693 p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
694 p_pgc->cell_playback[i].first_sector + 1;
697 msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
698 "start %d end %d blocks: %d",
699 i_title + 1, p_sys->i_ttn, pgc_id, pgn,
700 p_sys->i_title_start_block, p_sys->i_title_end_block,
701 p_sys->i_title_blocks );
704 * Set properties for current chapter
706 p_sys->i_chapter = 0;
708 p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
710 pgc_id = p_vts->vts_ptt_srpt->title[
711 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
712 pgn = p_vts->vts_ptt_srpt->title[
713 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
715 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
716 p_sys->i_pack_len = 0;
718 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
719 DvdReadFindCell( p_demux );
721 p_sys->i_next_vobu = p_sys->i_cur_block =
722 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
727 p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
728 if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
731 * We've got enough info, time to open the title set data.
733 if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
734 p_vmg->tt_srpt->title[i_title].title_set_nr,
735 DVD_READ_TITLE_VOBS ) ) )
737 msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
738 p_vmg->tt_srpt->title[i_title].title_set_nr );
742 //IfoPrintTitle( p_demux );
745 * Destroy obsolete ES by reinitializing program 0
746 * and find all ES in title with ifo data
748 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
750 for( i = 0; i < PS_TK_COUNT; i++ )
752 ps_track_t *tk = &p_sys->tk[i];
755 es_format_Clean( &tk->fmt );
756 if( tk->es ) es_out_Del( p_demux->out, tk->es );
758 tk->b_seen = VLC_FALSE;
761 if( p_demux->info.i_title != i_title )
763 p_demux->info.i_update |=
764 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
765 p_demux->info.i_title = i_title;
766 p_demux->info.i_seekpoint = 0;
769 /* TODO: re-add angles */
772 ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
773 p_sys->i_aspect = p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio;
775 #define audio_control \
776 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
778 /* Audio ES, in the order they appear in the .ifo */
779 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
784 //IfoPrintAudio( p_demux, i );
786 /* Audio channel is active if first byte is 0x80 */
787 if( audio_control & 0x8000 )
789 i_position = ( audio_control & 0x7F00 ) >> 8;
791 msg_Dbg( p_demux, "audio position %d", i_position );
792 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
795 i_id = (0x80 + i_position) | 0xbd00;
798 case 0x03: /* MPEG audio */
799 i_id = 0xc000 + i_position;
801 case 0x04: /* LPCM */
802 i_id = (0xa0 + i_position) | 0xbd00;
805 i_id = (0x88 + i_position) | 0xbd00;
809 msg_Err( p_demux, "unknown audio type %.2x",
810 p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
813 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
814 vts_audio_attr[i - 1].lang_code );
819 #define spu_palette \
820 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
822 memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
824 #define spu_control \
825 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
828 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
833 //IfoPrintSpu( p_sys, i );
834 msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
836 if( spu_control & 0x80000000 )
838 /* there are several streams for one spu */
839 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
842 switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
844 case 1: /* letterbox */
845 i_position = spu_control & 0xff;
847 case 2: /* pan&scan */
848 i_position = ( spu_control >> 8 ) & 0xff;
850 default: /* widescreen */
851 i_position = ( spu_control >> 16 ) & 0xff;
858 i_position = ( spu_control >> 24 ) & 0x7F;
861 i_id = (0x20 + i_position) | 0xbd00;
863 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
864 vts_subp_attr[i - 1].lang_code );
870 else if( i_title != -1 && i_title != p_sys->i_title )
873 return VLC_EGENERIC; /* Couldn't set title */
880 if( i_chapter >= 0 && i_chapter <= p_sys->i_chapters )
882 pgc_id = p_vts->vts_ptt_srpt->title[
883 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
884 pgn = p_vts->vts_ptt_srpt->title[
885 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
887 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
889 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
890 p_sys->i_chapter = i_chapter;
891 DvdReadFindCell( p_demux );
893 p_sys->i_title_offset = 0;
894 for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
896 p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
897 p_pgc->cell_playback[i].first_sector + 1;
900 p_sys->i_pack_len = 0;
901 p_sys->i_next_vobu = p_sys->i_cur_block =
902 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
904 if( p_demux->info.i_seekpoint != i_chapter )
906 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
907 p_demux->info.i_seekpoint = i_chapter;
910 else if( i_chapter != -1 )
913 return VLC_EGENERIC; /* Couldn't set chapter */
923 /*****************************************************************************
924 * DvdReadSeek : Goes to a given position on the stream.
925 *****************************************************************************
926 * This one is used by the input and translate chronological position from
927 * input to logical position on the device.
928 *****************************************************************************/
929 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
931 demux_sys_t *p_sys = p_demux->p_sys;
938 #define p_pgc p_sys->p_cur_pgc
939 #define p_vts p_sys->p_vts_file
942 i_block = i_block_offset;
943 for( i_cell = p_sys->i_title_start_cell;
944 i_cell <= p_sys->i_title_end_cell; i_cell++ )
946 if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
947 (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
949 i_block -= (p_pgc->cell_playback[i_cell].last_sector -
950 p_pgc->cell_playback[i_cell].first_sector + 1);
952 if( i_cell > p_sys->i_title_end_cell )
954 msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
957 i_block += p_pgc->cell_playback[i_cell].first_sector;
958 p_sys->i_title_offset = i_block_offset;
961 for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
963 int pgc_id, pgn, i_tmp;
965 pgc_id = p_vts->vts_ptt_srpt->title[
966 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
967 pgn = p_vts->vts_ptt_srpt->title[
968 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
970 i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
972 if( i_tmp > i_cell ) break;
975 if( i_chapter < p_sys->i_chapters &&
976 p_demux->info.i_seekpoint != i_chapter )
978 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
979 p_demux->info.i_seekpoint = i_chapter;
983 while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
989 while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
990 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
996 msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
997 "cell_sector %d vobu_sector %d sub_cell_sector %d",
998 i_cell, i_sub_cell, i_chapter, i_vobu,
999 p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1000 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1001 p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1004 p_sys->i_cur_block = i_block;
1005 p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1006 p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1007 p_sys->i_cur_cell = i_cell;
1008 p_sys->i_chapter = i_chapter;
1009 DvdReadFindCell( p_demux );
1017 /*****************************************************************************
1019 *****************************************************************************/
1020 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1022 demux_sys_t *p_sys = p_demux->p_sys;
1024 navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1027 * Determine where we go next. These values are the ones we mostly
1030 p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1033 * If we're not at the end of this cell, we can determine the next
1034 * VOBU to display using the VOBU_SRI information section of the
1035 * DSI. Using this value correctly follows the current angle,
1036 * avoiding the doubled scenes in The Matrix, and makes our life
1039 if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1041 switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1044 /* Interleaved unit with no angle */
1045 if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1047 p_sys->i_next_vobu = p_sys->i_cur_block +
1048 p_sys->dsi_pack.sml_pbi.ilvu_sa;
1049 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1053 p_sys->i_next_vobu = p_sys->i_cur_block +
1054 p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1055 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1059 /* vobu is end of ilvu */
1060 if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1062 p_sys->i_next_vobu = p_sys->i_cur_block +
1063 p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1064 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1069 /* vobu is beginning of ilvu */
1073 /* entering interleaved section */
1075 /* non interleaved cells in interleaved section */
1077 p_sys->i_next_vobu = p_sys->i_cur_block +
1078 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1079 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1085 p_sys->i_cur_cell = p_sys->i_next_cell;
1086 DvdReadFindCell( p_demux );
1088 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1089 p_sys->i_next_vobu =
1090 p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1094 msg_Dbg( p_demux, 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1095 p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1096 p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1097 p_sys->dsi_pack.dsi_gi.vobu_ea,
1098 p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1099 p_sys->dsi_pack.dsi_gi.vobu_c_idn );
1101 msg_Dbg( p_demux, 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1102 p_sys->dsi_pack.sml_pbi.category,
1103 p_sys->dsi_pack.sml_pbi.ilvu_ea,
1104 p_sys->dsi_pack.sml_pbi.ilvu_sa,
1105 p_sys->dsi_pack.sml_pbi.size );
1107 msg_Dbg( p_demux, 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1108 p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1109 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1110 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1114 /*****************************************************************************
1116 *****************************************************************************/
1117 static void DvdReadFindCell( demux_t *p_demux )
1119 demux_sys_t *p_sys = p_demux->p_sys;
1125 #define cell p_sys->p_cur_pgc->cell_playback
1127 if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1130 p_sys->i_next_cell = p_sys->i_cur_cell + p_sys->i_angle_nb;
1131 p_sys->i_cur_cell += p_sys->i_angle - 1;
1133 p_sys->i_cur_cell += p_sys->i_angle - 1;
1135 while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1139 p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1144 p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1149 pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1150 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
1151 pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1152 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
1153 p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1155 if( p_pgc->program_map[pgn - 1] <= p_sys->i_cur_cell )
1159 if( p_sys->i_chapter < p_sys->i_chapters &&
1160 p_demux->info.i_seekpoint != p_sys->i_chapter )
1162 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1163 p_demux->info.i_seekpoint = p_sys->i_chapter;
1168 /*****************************************************************************
1169 * DemuxTitles: get the titles/chapters structure
1170 *****************************************************************************/
1171 static void DemuxTitles( demux_t *p_demux,
1172 int *pi_title, int *pi_chapter, int *pi_angle )
1174 demux_sys_t *p_sys = p_demux->p_sys;
1180 /* Find out number of titles/chapters */
1181 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1183 i_titles = tt_srpt->nr_of_srpts;
1184 msg_Dbg( p_demux, "number of titles: %d", i_titles );
1186 for( i = 0; i < i_titles; i++ )
1188 int32_t i_chapters = 0;
1191 i_chapters = tt_srpt->title[i].nr_of_ptts;
1192 msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1194 t = vlc_input_title_New();
1195 t->psz_name = malloc( strlen( _("Title %i") ) + 20 );
1196 sprintf( t->psz_name, _("Title %i"), i + 1 );
1198 for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1200 s = vlc_seekpoint_New();
1201 s->psz_name = malloc( strlen( _("Chapter %i") ) + 20 );
1202 sprintf( s->psz_name, _("Chapter %i"), j + 1 );
1203 TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1206 TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1209 /* Set forced title/chapter/angle */
1210 *pi_title = (*pi_title >= 0 && *pi_title < i_titles) ? *pi_title : 0;
1211 *pi_chapter = (*pi_chapter >= 0 && *pi_chapter <
1212 tt_srpt->title[*pi_title].nr_of_ptts) ? *pi_chapter : 0;
1217 /*****************************************************************************
1218 * ParseCL: parse command line. Titles, chapters and angles start from 1.
1219 *****************************************************************************/
1220 static char *ParseCL( vlc_object_t *p_this, char *psz_name, vlc_bool_t b_force,
1221 int *i_title, int *i_chapter, int *i_angle )
1223 char *psz_parser, *psz_source, *psz_next;
1225 psz_source = strdup( psz_name );
1226 if( psz_source == NULL ) return NULL;
1232 /* Start with the end, because you could have :
1233 * dvdnav:/Volumes/my@toto/VIDEO_TS@1,1
1234 * (yes, this is kludgy). */
1235 for( psz_parser = psz_source + strlen(psz_source) - 1;
1236 psz_parser >= psz_source && *psz_parser != '@';
1239 if( psz_parser >= psz_source && *psz_parser == '@' )
1245 *i_title = (int)strtol( psz_parser, &psz_next, 10 );
1248 psz_parser = psz_next + 1;
1249 *i_chapter = (int)strtol( psz_parser, &psz_next, 10 );
1252 *i_angle = (int)strtol( psz_next + 1, NULL, 10 );
1257 *i_title = *i_title > 0 ? *i_title : 1;
1258 *i_chapter = *i_chapter > 0 ? *i_chapter : 1;
1259 *i_angle = *i_angle > 0 ? *i_angle : 1;
1268 psz_source = config_GetPsz( p_this, "dvd" );
1269 if( !psz_source ) return NULL;
1273 if( psz_source[0] && psz_source[1] == ':' &&
1274 psz_source[2] == '\\' && psz_source[3] == '\0' )
1276 psz_source[2] = '\0';
1280 msg_Dbg( p_this, "dvdroot=%s title=%d chapter=%d angle=%d",
1281 psz_source, *i_title, *i_chapter, *i_angle );
1283 /* Get back to a 0-based offset */