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 set_callbacks( Open, Close );
98 /* how many blocks DVDRead will read in each loop */
99 #define DVD_BLOCK_READ_ONCE 64
101 /*****************************************************************************
103 *****************************************************************************/
108 dvd_reader_t *p_dvdread;
111 ifo_handle_t *p_vmg_file;
112 ifo_handle_t *p_vts_file;
114 unsigned int i_title;
115 unsigned int i_chapter, i_chapters;
116 unsigned int i_angle, i_angles;
118 tt_srpt_t *p_tt_srpt;
125 unsigned int i_pack_len;
126 unsigned int i_cur_block;
127 unsigned int i_next_vobu;
129 /* Current title start/end blocks */
130 unsigned int i_title_start_block;
131 unsigned int i_title_end_block;
132 unsigned int i_title_blocks;
133 unsigned int i_title_offset;
135 unsigned int i_title_start_cell;
136 unsigned int i_cur_cell;
137 unsigned int i_next_cell;
140 ps_track_t tk[PS_TK_COUNT];
142 /* for spu variables */
143 input_thread_t *p_input;
153 input_title_t **titles;
156 static char *ParseCL( vlc_object_t *, char *, vlc_bool_t, int *, int *, int *);
158 static int Control ( demux_t *, int, va_list );
159 static int Demux ( demux_t * );
160 static int DemuxBlock( demux_t *, uint8_t *, int );
164 AR_SQUARE_PICTURE = 1, /* square pixels */
165 AR_3_4_PICTURE = 2, /* 3:4 picture (TV) */
166 AR_16_9_PICTURE = 3, /* 16:9 picture (wide screen) */
167 AR_221_1_PICTURE = 4, /* 2.21:1 picture (movie) */
170 static void DemuxTitles( demux_t *, int *, int *, int * );
171 static void ESNew( demux_t *, int, int );
173 static int DvdReadSetArea ( demux_t *, int, int, int );
174 static void DvdReadSeek ( demux_t *, int );
175 static void DvdReadHandleDSI( demux_t *, uint8_t * );
176 static void DvdReadFindCell ( demux_t * );
178 /*****************************************************************************
180 *****************************************************************************/
181 static int Open( vlc_object_t *p_this )
183 demux_t *p_demux = (demux_t*)p_this;
185 int i_title, i_chapter, i_angle;
187 char *psz_dvdcss_env;
188 dvd_reader_t *p_dvdread;
189 ifo_handle_t *p_vmg_file;
191 psz_name = ParseCL( VLC_OBJECT(p_demux), p_demux->psz_path, VLC_TRUE,
192 &i_title, &i_chapter, &i_angle );
198 /* Override environment variable DVDCSS_METHOD with config option
199 * (FIXME: this creates a small memory leak) */
200 psz_dvdcss_env = config_GetPsz( p_demux, "dvdread-css-method" );
201 if( psz_dvdcss_env && *psz_dvdcss_env )
205 psz_env = malloc( strlen("DVDCSS_METHOD=") +
206 strlen( psz_dvdcss_env ) + 1 );
210 free( psz_dvdcss_env );
214 sprintf( psz_env, "%s%s", "DVDCSS_METHOD=", psz_dvdcss_env );
218 if( psz_dvdcss_env ) free( psz_dvdcss_env );
221 if( !(p_dvdread = DVDOpen( psz_name )) )
223 msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
229 /* Ifo allocation & initialisation */
230 if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
232 msg_Warn( p_demux, "cannot open VMG info" );
235 msg_Dbg( p_demux, "VMG opened" );
237 /* Fill p_demux field */
238 p_demux->pf_demux = Demux;
239 p_demux->pf_control = Control;
240 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
241 memset( p_sys, 0, sizeof( demux_sys_t ) );
243 ps_track_init( p_sys->tk );
244 p_sys->i_aspect = -1;
246 p_sys->p_dvdread = p_dvdread;
247 p_sys->p_vmg_file = p_vmg_file;
248 p_sys->p_title = NULL;
249 p_sys->p_vts_file = NULL;
251 p_sys->i_title = p_sys->i_chapter = -1;
252 p_sys->i_angle = i_angle;
254 DemuxTitles( p_demux, &i_title, &i_chapter, &i_angle );
256 DvdReadSetArea( p_demux, i_title - 1, i_chapter, i_angle );
258 /* Update default_pts to a suitable value for dvdread access */
259 var_Create( p_demux, "dvdread-caching",
260 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
265 /*****************************************************************************
267 *****************************************************************************/
268 static void Close( vlc_object_t *p_this )
270 demux_t *p_demux = (demux_t*)p_this;
271 demux_sys_t *p_sys = p_demux->p_sys;
274 for( i = 0; i < PS_TK_COUNT; i++ )
276 ps_track_t *tk = &p_sys->tk[i];
279 es_format_Clean( &tk->fmt );
280 if( tk->es ) es_out_Del( p_demux->out, tk->es );
284 /* Close libdvdread */
285 if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
286 if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
287 if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
288 DVDClose( p_sys->p_dvdread );
293 /*****************************************************************************
295 *****************************************************************************/
296 static int Control( demux_t *p_demux, int i_query, va_list args )
298 demux_sys_t *p_sys = p_demux->p_sys;
302 input_title_t ***ppp_title;
308 case DEMUX_GET_POSITION:
310 pf = (double*) va_arg( args, double* );
312 if( p_sys->i_title_blocks > 0 )
313 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
319 case DEMUX_SET_POSITION:
321 f = (double)va_arg( args, double );
323 DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
328 /* Special for access_demux */
329 case DEMUX_CAN_PAUSE:
330 case DEMUX_CAN_CONTROL_PACE:
332 pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
336 case DEMUX_SET_PAUSE_STATE:
339 case DEMUX_GET_TITLE_INFO:
340 ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
341 pi_int = (int*)va_arg( args, int* );
343 /* Duplicate title infos */
344 *pi_int = p_sys->i_titles;
345 *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
346 for( i = 0; i < p_sys->i_titles; i++ )
348 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
352 case DEMUX_SET_TITLE:
353 i = (int)va_arg( args, int );
354 if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
356 msg_Warn( p_demux, "cannot set title/chapter" );
359 p_demux->info.i_update |=
360 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
361 p_demux->info.i_title = i;
362 p_demux->info.i_seekpoint = 0;
365 case DEMUX_SET_SEEKPOINT:
366 i = (int)va_arg( args, int );
367 if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
369 msg_Warn( p_demux, "cannot set title/chapter" );
372 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
373 p_demux->info.i_seekpoint = i;
376 case DEMUX_GET_PTS_DELAY:
377 pi64 = (int64_t*)va_arg( args, int64_t * );
378 *pi64 = (int64_t)var_GetInteger( p_demux, "dvdread-caching" )*1000;
381 /* TODO implement others */
387 /*****************************************************************************
389 *****************************************************************************/
390 static int Demux( demux_t *p_demux )
392 demux_sys_t *p_sys = p_demux->p_sys;
394 uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
395 int i_blocks_once, i_read;
399 * Playback by cell in this pgc, starting at the cell for our chapter.
403 * Check end of pack, and select the following one
405 if( !p_sys->i_pack_len )
407 /* Read NAV packet */
408 if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
411 msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
415 /* Basic check to be sure we don't have a empty title
416 * go to next title if so */
417 //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
419 /* Parse the contained dsi packet */
420 DvdReadHandleDSI( p_demux, p_buffer );
423 if( p_sys->i_next_vobu > p_sys->i_title_end_block )
425 if( p_sys->i_title + 1 >= p_sys->i_titles ) return 0; /* EOF */
427 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
430 if( p_sys->i_pack_len <= 0 )
432 msg_Err( p_demux, "i_pack_len <= 0. This shouldn't happen!" );
436 /* FIXME: Ugly kludge: we send the pack block to the input for it
437 * sometimes has a zero scr and restart the sync */
438 p_sys->i_cur_block++;
439 p_sys->i_title_offset++;
441 DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
444 if( p_sys->i_cur_block > p_sys->i_title_end_block )
446 if( p_sys->i_title + 1 >= p_sys->i_titles ) return 0; /* EOF */
448 DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
454 i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
455 p_sys->i_pack_len -= i_blocks_once;
458 i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
459 i_blocks_once, p_buffer );
460 if( i_read != i_blocks_once )
462 msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
463 i_read, i_blocks_once, p_sys->i_cur_block );
467 p_sys->i_cur_block += i_read;
468 p_sys->i_title_offset += i_read;
471 msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
472 i_read, p_sys->i_pack_len, p_sys->i_cur_block );
475 for( i = 0; i < i_read; i++ )
477 DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
486 /*****************************************************************************
487 * DemuxBlock: demux a given block
488 *****************************************************************************/
489 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
491 demux_sys_t *p_sys = p_demux->p_sys;
494 while( p < &pkt[i_pkt] )
496 int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
504 p_pkt = block_New( p_demux, i_size );
505 memcpy( p_pkt->p_buffer, p, i_size);
507 /* Parse it and send it */
508 switch( 0x100 | p[3] )
517 msg_Warn( p_demux, "received a PSM packet" );
519 else if( p[3] == 0xbb )
521 msg_Warn( p_demux, "received a SYSTEM packet" );
524 block_Release( p_pkt );
531 if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
533 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
535 block_Release( p_pkt );
540 int i_id = ps_pkt_id( p_pkt );
543 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
547 ESNew( p_demux, i_id, 0 );
549 if( tk->b_seen && tk->es &&
550 !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
552 es_out_Send( p_demux->out, tk->es, p_pkt );
556 block_Release( p_pkt );
561 block_Release( p_pkt );
573 /*****************************************************************************
574 * ESNew: register a new elementary stream
575 *****************************************************************************/
576 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
578 demux_sys_t *p_sys = p_demux->p_sys;
579 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
580 char psz_language[3];
582 if( tk->b_seen ) return;
584 if( ps_track_fill( tk, i_id ) )
586 msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
590 psz_language[0] = psz_language[1] = psz_language[2] = 0;
591 if( i_lang && i_lang != 0xffff )
593 psz_language[0] = (i_lang >> 8)&0xff;
594 psz_language[1] = (i_lang )&0xff;
598 if( tk->fmt.i_cat == VIDEO_ES )
600 if( p_sys->i_aspect >= 0 )
602 tk->fmt.video.i_aspect = p_sys->i_aspect;
605 else if( tk->fmt.i_cat == AUDIO_ES )
608 /* find the audio number PLEASE find another way */
609 if( (i_id&0xbdf8) == 0xbd88 ) /* dts */
613 else if( (i_id&0xbdf0) == 0xbd80 ) /* a52 */
617 else if( (i_id&0xbdf0) == 0xbda0 ) /* lpcm */
621 else if( ( i_id&0xe0 ) == 0xc0 ) /* mpga */
626 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
628 else if( tk->fmt.i_cat == SPU_ES )
631 tk->fmt.subs.spu.palette[0] = 0xBeef;
632 memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
633 16 * sizeof( uint32_t ) );
635 if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
638 tk->es = es_out_Add( p_demux->out, &tk->fmt );
639 tk->b_seen = VLC_TRUE;
642 /*****************************************************************************
643 * DvdReadSetArea: initialize input data for title x, chapter y.
644 * It should be called for each user navigation request.
645 *****************************************************************************
646 * Take care that i_title and i_chapter start from 0.
647 *****************************************************************************/
648 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
651 demux_sys_t *p_sys = p_demux->p_sys;
657 #define p_pgc p_sys->p_cur_pgc
658 #define p_vmg p_sys->p_vmg_file
659 #define p_vts p_sys->p_vts_file
661 if( i_title >= 0 && i_title < p_sys->i_titles &&
662 i_title != p_sys->i_title )
664 int i_start_cell, i_end_cell;
666 if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
667 if( p_vts != NULL ) ifoClose( p_vts );
668 p_sys->i_title = i_title;
671 * We have to load all title information
673 msg_Dbg( p_demux, "open VTS %d, for title %d",
674 p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
677 if( !( p_vts = ifoOpen( p_sys->p_dvdread,
678 p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
680 msg_Err( p_demux, "fatal error in vts ifo" );
684 /* Title position inside the selected vts */
685 p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
687 /* Find title start/end */
688 pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
689 pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
690 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
692 p_sys->i_title_start_cell =
693 i_start_cell = p_pgc->program_map[pgn - 1] - 1;
694 p_sys->i_title_start_block =
695 p_pgc->cell_playback[i_start_cell].first_sector;
697 i_end_cell = p_pgc->nr_of_cells - 1;
698 p_sys->i_title_end_block =
699 p_pgc->cell_playback[i_end_cell].last_sector;
701 p_sys->i_title_offset = 0;
703 p_sys->i_title_blocks = 0;
704 for( i = i_start_cell; i <= i_end_cell; i++ )
706 p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
707 p_pgc->cell_playback[i].first_sector + 1;
710 msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
711 "start %d end %d blocks: %d",
712 i_title + 1, p_sys->i_ttn, pgc_id, pgn,
713 p_sys->i_title_start_block, p_sys->i_title_end_block,
714 p_sys->i_title_blocks );
717 * Set properties for current chapter
719 p_sys->i_chapter = 0;
721 p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
723 pgc_id = p_vts->vts_ptt_srpt->title[
724 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
725 pgn = p_vts->vts_ptt_srpt->title[
726 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
728 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
729 p_sys->i_pack_len = 0;
731 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
732 DvdReadFindCell( p_demux );
734 p_sys->i_next_vobu = p_sys->i_cur_block =
735 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
740 p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
741 if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
744 * We've got enough info, time to open the title set data.
746 if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
747 p_vmg->tt_srpt->title[i_title].title_set_nr,
748 DVD_READ_TITLE_VOBS ) ) )
750 msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
751 p_vmg->tt_srpt->title[i_title].title_set_nr );
755 //IfoPrintTitle( p_demux );
758 * Destroy obsolete ES by reinitializing program 0
759 * and find all ES in title with ifo data
761 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
763 for( i = 0; i < PS_TK_COUNT; i++ )
765 ps_track_t *tk = &p_sys->tk[i];
768 es_format_Clean( &tk->fmt );
769 if( tk->es ) es_out_Del( p_demux->out, tk->es );
771 tk->b_seen = VLC_FALSE;
774 if( p_demux->info.i_title != i_title )
776 p_demux->info.i_update |=
777 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
778 p_demux->info.i_title = i_title;
779 p_demux->info.i_seekpoint = 0;
782 /* TODO: re-add angles */
785 ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
787 #define audio_control \
788 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
790 /* Audio ES, in the order they appear in the .ifo */
791 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
796 //IfoPrintAudio( p_demux, i );
798 /* Audio channel is active if first byte is 0x80 */
799 if( audio_control & 0x8000 )
801 i_position = ( audio_control & 0x7F00 ) >> 8;
803 msg_Dbg( p_demux, "audio position %d", i_position );
804 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
807 i_id = (0x80 + i_position) | 0xbd00;
810 case 0x03: /* MPEG audio */
811 i_id = 0xc000 + i_position;
813 case 0x04: /* LPCM */
814 i_id = (0xa0 + i_position) | 0xbd00;
817 i_id = (0x88 + i_position) | 0xbd00;
821 msg_Err( p_demux, "unknown audio type %.2x",
822 p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
825 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
826 vts_audio_attr[i - 1].lang_code );
831 #define spu_control \
832 p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
835 for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
840 //IfoPrintSpu( p_sys, i );
841 msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
843 if( spu_control & 0x80000000 )
845 /* there are several streams for one spu */
846 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
849 switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
852 i_position = spu_control & 0xff;
855 i_position = ( spu_control >> 8 ) & 0xff;
858 i_position = ( spu_control >> 16 ) & 0xff;
865 i_position = ( spu_control >> 24 ) & 0x7F;
868 i_id = (0x20 + i_position) | 0xbd00;
870 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
871 vts_subp_attr[i - 1].lang_code );
879 /* TODO: update input ? */
886 if( i_chapter >= 0 && i_chapter <= p_sys->i_chapters &&
887 i_chapter != p_sys->i_chapter )
889 pgc_id = p_vts->vts_ptt_srpt->title[
890 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
891 pgn = p_vts->vts_ptt_srpt->title[
892 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
894 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
896 p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
897 p_sys->i_chapter = i_chapter;
898 DvdReadFindCell( p_demux );
900 p_sys->i_title_offset = 0;
901 for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
903 p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
904 p_pgc->cell_playback[i].first_sector + 1;
907 p_sys->i_pack_len = 0;
908 p_sys->i_next_vobu = p_sys->i_cur_block =
909 p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
911 if( p_demux->info.i_seekpoint != i_chapter )
913 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
914 p_demux->info.i_seekpoint = i_chapter;
925 /*****************************************************************************
926 * DvdReadSeek : Goes to a given position on the stream.
927 *****************************************************************************
928 * This one is used by the input and translate chronological position from
929 * input to logical position on the device.
930 *****************************************************************************/
931 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
933 demux_sys_t *p_sys = p_demux->p_sys;
935 unsigned int i_chapter = 0;
936 unsigned int i_cell = 0;
937 unsigned int i_vobu = 0;
938 unsigned int i_sub_cell = 0;
941 #define p_pgc p_sys->p_cur_pgc
942 #define p_vts p_sys->p_vts_file
945 p_sys->i_title_offset = i_block = i_block_offset;
946 while( i_block >= (int)p_pgc->cell_playback[i_cell].last_sector -
947 (int)p_pgc->cell_playback[i_cell].first_sector + 1 )
951 i_block -= p_pgc->cell_playback[i_cell].last_sector -
952 p_pgc->cell_playback[i_cell].first_sector + 1;
955 i_block += p_pgc->cell_playback[i_cell].first_sector;
963 pgc_id = p_vts->vts_ptt_srpt->title[
964 p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
965 pgn = p_vts->vts_ptt_srpt->title[
966 p_sys->i_ttn - 1].ptt[i_chapter].pgn;
968 i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
970 } while( i_tmp <= i_cell );
973 while( p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
979 while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
980 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
986 msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
987 "cell_sector %d vobu_sector %d sub_cell_sector %d",
988 i_cell, i_sub_cell,i_chapter, i_vobu,
989 p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
990 p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
991 p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
994 p_sys->i_cur_block = i_block;
995 p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
996 p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
997 p_sys->i_cur_cell = i_cell;
998 p_sys->i_chapter = i_chapter;
999 DvdReadFindCell( p_demux );
1007 /*****************************************************************************
1009 *****************************************************************************/
1010 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1012 demux_sys_t *p_sys = p_demux->p_sys;
1014 navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1017 * Determine where we go next. These values are the ones we mostly
1020 p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1023 * If we're not at the end of this cell, we can determine the next
1024 * VOBU to display using the VOBU_SRI information section of the
1025 * DSI. Using this value correctly follows the current angle,
1026 * avoiding the doubled scenes in The Matrix, and makes our life
1029 if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1031 switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1034 /* Interleaved unit with no angle */
1035 if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1037 p_sys->i_next_vobu = p_sys->i_cur_block +
1038 p_sys->dsi_pack.sml_pbi.ilvu_sa;
1039 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1043 p_sys->i_next_vobu = p_sys->i_cur_block +
1044 p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1045 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1049 /* vobu is end of ilvu */
1050 if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1052 p_sys->i_next_vobu = p_sys->i_cur_block +
1053 p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1054 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1059 /* vobu is beginning of ilvu */
1063 /* entering interleaved section */
1065 /* non interleaved cells in interleaved section */
1067 p_sys->i_next_vobu = p_sys->i_cur_block +
1068 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1069 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1075 p_sys->i_cur_cell = p_sys->i_next_cell;
1076 DvdReadFindCell( p_demux );
1078 p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1079 p_sys->i_next_vobu =
1080 p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1084 msg_Dbg( p_input, 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1085 p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1086 p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1087 p_sys->dsi_pack.dsi_gi.vobu_ea,
1088 p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1089 p_sys->dsi_pack.dsi_gi.vobu_c_idn );
1091 msg_Dbg( p_input, 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1092 p_sys->dsi_pack.sml_pbi.category,
1093 p_sys->dsi_pack.sml_pbi.ilvu_ea,
1094 p_sys->dsi_pack.sml_pbi.ilvu_sa,
1095 p_sys->dsi_pack.sml_pbi.size );
1097 msg_Dbg( p_input, 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1098 p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1099 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1100 p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1104 /*****************************************************************************
1106 *****************************************************************************/
1107 static void DvdReadFindCell( demux_t *p_demux )
1109 demux_sys_t *p_sys = p_demux->p_sys;
1115 #define cell p_sys->p_cur_pgc->cell_playback
1117 if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1120 p_sys->i_next_cell = p_sys->i_cur_cell + p_sys->i_angle_nb;
1121 p_sys->i_cur_cell += p_sys->i_angle - 1;
1123 p_sys->i_cur_cell += p_sys->i_angle - 1;
1125 while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1129 p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1134 p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1139 pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1140 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
1141 pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1142 p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
1143 p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1145 if( p_pgc->program_map[pgn - 1] <= p_sys->i_cur_cell )
1149 if( p_sys->i_chapter < p_sys->i_chapters &&
1150 p_demux->info.i_seekpoint != p_sys->i_chapter )
1152 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1153 p_demux->info.i_seekpoint = p_sys->i_chapter;
1158 /*****************************************************************************
1159 * DemuxTitles: get the titles/chapters structure
1160 *****************************************************************************/
1161 static void DemuxTitles( demux_t *p_demux,
1162 int *pi_title, int *pi_chapter, int *pi_angle )
1164 demux_sys_t *p_sys = p_demux->p_sys;
1170 /* Find out number of titles/chapters */
1171 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1173 i_titles = tt_srpt->nr_of_srpts;
1174 msg_Dbg( p_demux, "number of titles: %d", i_titles );
1176 for( i = 0; i < i_titles; i++ )
1178 int32_t i_chapters = 0;
1181 i_chapters = tt_srpt->title[i].nr_of_ptts;
1182 msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1184 t = vlc_input_title_New();
1185 for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1187 s = vlc_seekpoint_New();
1188 TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1191 TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1194 /* Set forced title/chapter/angle */
1195 *pi_title = (*pi_title >= 1 && *pi_title <= i_titles) ? *pi_title : 1;
1196 *pi_chapter = (*pi_chapter >= 0 && *pi_chapter <
1197 tt_srpt->title[*pi_title].nr_of_ptts) ? *pi_chapter : 0;
1202 /*****************************************************************************
1203 * ParseCL: parse command line
1204 *****************************************************************************/
1205 static char *ParseCL( vlc_object_t *p_this, char *psz_name, vlc_bool_t b_force,
1206 int *i_title, int *i_chapter, int *i_angle )
1208 char *psz_parser, *psz_source, *psz_next;
1210 psz_source = strdup( psz_name );
1211 if( psz_source == NULL ) return NULL;
1217 /* Start with the end, because you could have :
1218 * dvdnav:/Volumes/my@toto/VIDEO_TS@1,1
1219 * (yes, this is kludgy). */
1220 for( psz_parser = psz_source + strlen(psz_source) - 1;
1221 psz_parser >= psz_source && *psz_parser != '@';
1224 if( psz_parser >= psz_source && *psz_parser == '@' )
1230 *i_title = (int)strtol( psz_parser, &psz_next, 10 );
1233 psz_parser = psz_next + 1;
1234 *i_chapter = (int)strtol( psz_parser, &psz_next, 10 );
1237 *i_angle = (int)strtol( psz_next + 1, NULL, 10 );
1242 *i_title = *i_title >= 0 ? *i_title : 0;
1243 *i_chapter = *i_chapter ? *i_chapter : 0;
1244 *i_angle = *i_angle ? *i_angle : 1;
1253 psz_source = config_GetPsz( p_this, "dvd" );
1254 if( !psz_source ) return NULL;
1258 if( psz_source[0] && psz_source[1] == ':' &&
1259 psz_source[2] == '\\' && psz_source[3] == '\0' )
1261 psz_source[2] = '\0';
1265 msg_Dbg( p_this, "dvdroot=%s title=%d chapter=%d angle=%d",
1266 psz_source, *i_title, *i_chapter, *i_angle );