1 /*****************************************************************************
2 * input_dvdread.c: DvdRead plugin.
3 *****************************************************************************
4 * This plugins should handle all the known specificities of the DVD format,
5 * especially the 2048 bytes logical block size.
6 * It depends on: libdvdread for ifo files and block reading.
7 *****************************************************************************
8 * Copyright (C) 2001 VideoLAN
9 * $Id: input_dvdread.c,v 1.24 2002/03/02 03:29:13 stef Exp $
11 * Author: Stéphane Borel <stef@via.ecp.fr>
13 * Some code taken form the play_title.c by Billy Biggs <vektor@dumbterm.net>
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
29 *****************************************************************************/
31 /*****************************************************************************
33 *****************************************************************************/
37 #include <videolan/vlc.h>
44 #include <sys/types.h>
50 #ifdef STRNCASECMP_IN_STRINGS_H
55 # include <io.h> /* read() */
57 # include <sys/uio.h> /* struct iovec */
61 # include "input_iovec.h"
64 #include "stream_control.h"
65 #include "input_ext-intf.h"
66 #include "input_ext-dec.h"
67 #include "input_ext-plugins.h"
69 #include "input_dvdread.h"
75 /* how many blocks DVDRead will read in each loop */
76 #define DVD_BLOCK_READ_ONCE 64
78 /*****************************************************************************
80 *****************************************************************************/
81 /* called from outside */
82 static int DvdReadInit ( struct input_thread_s * );
83 static void DvdReadEnd ( struct input_thread_s * );
84 static int DvdReadDemux ( struct input_thread_s * );
85 static int DvdReadRewind ( struct input_thread_s * );
87 static int DvdReadOpen ( struct input_thread_s * );
88 static void DvdReadClose ( struct input_thread_s * );
89 static int DvdReadSetArea ( struct input_thread_s *, struct input_area_s * );
90 static int DvdReadSetProgram( struct input_thread_s *, pgrm_descriptor_t * );
91 static int DvdReadRead ( struct input_thread_s *, byte_t *, size_t );
92 static void DvdReadSeek ( struct input_thread_s *, off_t );
94 /* called only from here */
95 static void DvdReadLauchDecoders( input_thread_t * p_input );
96 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data );
97 static void DvdReadFindCell ( thread_dvd_data_t * p_dvd );
99 /*****************************************************************************
100 * Functions exported as capabilities. They are declared as static so that
101 * we don't pollute the namespace too much.
102 *****************************************************************************/
103 void _M( access_getfunctions )( function_list_t * p_function_list )
105 #define access p_function_list->functions.access
106 access.pf_open = DvdReadOpen;
107 access.pf_close = DvdReadClose;
108 access.pf_read = DvdReadRead;
109 access.pf_set_area = DvdReadSetArea;
110 access.pf_set_program = DvdReadSetProgram;
111 access.pf_seek = DvdReadSeek;
115 void _M( demux_getfunctions )( function_list_t * p_function_list )
117 #define demux p_function_list->functions.demux
118 demux.pf_init = DvdReadInit;
119 demux.pf_end = DvdReadEnd;
120 demux.pf_demux = DvdReadDemux;
121 demux.pf_rewind = DvdReadRewind;
126 * Data demux functions
129 /*****************************************************************************
130 * DvdReadInit: initializes DVD structures
131 *****************************************************************************/
132 static int DvdReadInit( input_thread_t * p_input )
134 if( strncmp( p_input->p_access_module->psz_name, "dvdread", 7 ) )
139 vlc_mutex_lock( &p_input->stream.stream_lock );
141 DvdReadLauchDecoders( p_input );
143 vlc_mutex_unlock( &p_input->stream.stream_lock );
148 /*****************************************************************************
149 * DvdReadEnd: frees unused data
150 *****************************************************************************/
151 static void DvdReadEnd( input_thread_t * p_input )
155 /*****************************************************************************
157 *****************************************************************************/
158 #define PEEK( SIZE ) \
159 i_result = input_Peek( p_input, &p_peek, SIZE ); \
160 if( i_result == -1 ) \
164 else if( i_result < SIZE ) \
170 static int DvdReadDemux( input_thread_t * p_input )
174 data_packet_t * p_data;
179 /* Read headers to compute payload length */
180 for( i = 0 ; i < DVD_BLOCK_READ_ONCE ; i++ )
183 /* Read what we believe to be a packet header. */
187 if( U32_AT( p_peek ) != 0x1BA )
189 /* That's the case for all packets, except pack header. */
190 i_packet_size = U16_AT( p_peek + 4 );
194 /* MPEG-2 Pack header. */
198 /* Fetch a packet of the appropriate size. */
199 i_result = input_SplitBuffer( p_input, &p_data, i_packet_size + 6 );
205 /* In MPEG-2 pack headers we still have to read stuffing bytes. */
206 if( (p_data->p_demux_start[3] == 0xBA) && (i_packet_size == 8) )
208 size_t i_stuffing = (p_data->p_demux_start[13] & 0x7);
209 /* Force refill of the input buffer - though we don't care
210 * about p_peek. Please note that this is unoptimized. */
212 p_input->p_current_data += i_stuffing;
215 input_DemuxPS( p_input, p_data );
222 /*****************************************************************************
223 * DVDRewind : reads a stream backward
224 *****************************************************************************/
225 static int DvdReadRewind( input_thread_t * p_input )
231 * Data access functions
234 /*****************************************************************************
235 * DvdReadOpen: open libdvdread
236 *****************************************************************************/
237 static int DvdReadOpen( struct input_thread_s *p_input )
239 struct stat stat_info;
240 thread_dvd_data_t * p_dvd;
241 dvd_reader_t * p_dvdread;
242 input_area_t * p_area;
247 if( stat( p_input->psz_name, &stat_info ) == -1 )
249 intf_ErrMsg( "input error: cannot stat() device `%s' (%s)",
250 p_input->psz_name, strerror(errno));
253 if( !S_ISBLK(stat_info.st_mode) &&
254 !S_ISCHR(stat_info.st_mode) &&
255 !S_ISDIR(stat_info.st_mode) )
257 intf_WarnMsg( 3, "input : DvdRead plugin discarded"
258 " (not a valid source)" );
262 p_dvdread = DVDOpen( p_input->psz_name );
265 intf_ErrMsg( "dvdread error: libdvdcss can't open source" );
272 p_dvd = malloc( sizeof(thread_dvd_data_t) );
275 intf_ErrMsg( "dvdread error: out of memory" );
279 p_dvd->p_dvdread = p_dvdread;
280 p_dvd->p_title = NULL;
281 p_dvd->p_vts_file = NULL;
283 p_input->p_access_data = (void *)p_dvd;
285 /* Ifo allocation & initialisation */
286 if( ! ( p_dvd->p_vmg_file = ifoOpen( p_dvd->p_dvdread, 0 ) ) )
288 intf_ErrMsg( "dvdread error: can't open VMG info" );
292 intf_WarnMsg( 2, "dvdread info: VMG opened" );
294 /* Set stream and area data */
295 vlc_mutex_lock( &p_input->stream.stream_lock );
297 p_input->stream.i_method = INPUT_METHOD_DVD;
299 /* If we are here we can control the pace... */
300 p_input->stream.b_pace_control = 1;
301 p_input->stream.b_seekable = 1;
303 p_input->stream.p_selected_area->i_size = 0;
304 p_input->stream.p_selected_area->i_tell = 0;
306 /* Initialize ES structures */
307 input_InitStream( p_input, sizeof( stream_ps_data_t ) );
309 /* disc input method */
310 p_input->stream.i_method = INPUT_METHOD_DVD;
312 #define tt_srpt p_dvd->p_vmg_file->tt_srpt
313 intf_WarnMsg( 2, "dvdread info: number of titles: %d", tt_srpt->nr_of_srpts );
315 #define area p_input->stream.pp_areas
316 /* We start from 1 here since the default area 0
317 * is reserved for video_ts.vob */
318 for( i = 1 ; i <= tt_srpt->nr_of_srpts ; i++ )
320 input_AddArea( p_input );
322 /* Titles are Program Chains */
325 /* Absolute start offset and size
326 * We can only set that with vts ifo, so we do it during the
327 * first call to DVDSetArea */
328 area[i]->i_start = 0;
331 /* Number of chapters */
332 area[i]->i_part_nb = tt_srpt->title[i-1].nr_of_ptts;
335 /* Number of angles */
336 area[i]->i_angle_nb = 0;
337 area[i]->i_angle = 1;
339 area[i]->i_plugin_data = tt_srpt->title[i-1].title_set_nr;
343 /* Get requested title - if none try the first title */
344 i_title = config_GetIntVariable( INPUT_TITLE_VAR );
345 if( i_title <= 0 || i_title > tt_srpt->nr_of_srpts )
352 /* Get requested chapter - if none defaults to first one */
353 i_chapter = config_GetIntVariable( INPUT_CHAPTER_VAR );
359 p_input->stream.pp_areas[i_title]->i_part = i_chapter;
361 p_area = p_input->stream.pp_areas[i_title];
363 /* set title, chapter, audio and subpic */
364 if( DvdReadSetArea( p_input, p_area ) )
366 vlc_mutex_unlock( &p_input->stream.stream_lock );
370 vlc_mutex_unlock( &p_input->stream.stream_lock );
375 /*****************************************************************************
376 * DvdReadClose: close libdvdread
377 *****************************************************************************/
378 static void DvdReadClose( struct input_thread_s *p_input )
380 thread_dvd_data_t * p_dvd;
382 p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
384 /* close libdvdread */
385 DVDCloseFile( p_dvd->p_title );
386 ifoClose( p_dvd->p_vts_file );
387 ifoClose( p_dvd->p_vmg_file );
389 DVDClose( p_dvd->p_dvdread );
391 p_input->p_access_data = NULL;
395 /*****************************************************************************
396 * DvdReadSetProgram: Does nothing, a DVD is mono-program
397 *****************************************************************************/
398 static int DvdReadSetProgram( input_thread_t * p_input,
399 pgrm_descriptor_t * p_program )
404 #define p_pgc p_dvd->p_cur_pgc
406 /*****************************************************************************
407 * DvdReadSetArea: initialize input data for title x, chapter y.
408 * It should be called for each user navigation request.
409 *****************************************************************************
410 * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
411 * Note that you have to take the lock before entering here.
412 *****************************************************************************/
413 static int DvdReadSetArea( input_thread_t * p_input, input_area_t * p_area )
415 thread_dvd_data_t * p_dvd;
419 p_dvd = (thread_dvd_data_t*)p_input->p_access_data;
421 /* we can't use the interface slider until initilization is complete */
422 p_input->stream.b_seekable = 0;
424 if( p_area != p_input->stream.p_selected_area )
426 es_descriptor_t * p_es;
432 #define p_vmg p_dvd->p_vmg_file
433 #define p_vts p_dvd->p_vts_file
434 if( p_dvd->p_title != NULL )
436 DVDCloseFile( p_dvd->p_title );
444 /* Reset the Chapter position of the old title */
445 p_input->stream.p_selected_area->i_part = 1;
448 * We have to load all title information
450 /* Change the default area */
451 p_input->stream.p_selected_area = p_area;
453 intf_WarnMsg( 12, "dvdread: open VTS %d, for title %d",
454 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
458 if( ! ( p_vts = ifoOpen( p_dvd->p_dvdread,
459 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr ) ) )
461 intf_ErrMsg( "dvdread error: fatal error in vts ifo" );
463 DVDClose( p_dvd->p_dvdread );
467 /* title position inside the selected vts */
468 p_dvd->i_ttn = p_vmg->tt_srpt->title[ p_area->i_id - 1 ].vts_ttn;
471 * Set selected title start
473 pgc_id = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgcn;
474 pgn = p_vts->vts_ptt_srpt->title[p_dvd->i_ttn-1].ptt[0].pgn;
475 p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
476 i_cell = p_pgc->program_map[ pgn - 1 ] - 1;
479 LB2OFF( p_dvd->p_cur_pgc->cell_playback[ i_cell ].first_sector );
481 intf_WarnMsg( 3, "dvdread: start %d vts_title %d pgc %d pgn %d",
482 p_area->i_id, p_dvd->i_ttn, pgc_id, pgn );
487 i_cell = p_dvd->p_cur_pgc->nr_of_cells - 1;
489 p_dvd->i_end_block = p_pgc->cell_playback[ i_cell ].last_sector;
490 p_area->i_size = LB2OFF( p_dvd->i_end_block )- p_area->i_start;
492 intf_WarnMsg( 12, "dvdread: start %lld size %lld end %d",
493 p_area->i_start , p_area->i_size, p_dvd->i_end_block );
496 * Set properties for current chapter
498 /* Remeber current chapter */
499 p_dvd->i_chapter = p_area->i_part;
502 pgc_id = p_vts->vts_ptt_srpt->title[
503 p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
504 pgn = p_vts->vts_ptt_srpt->title[
505 p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
507 p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id-1].pgc;
508 p_dvd->i_pack_len = 0;
509 p_dvd->i_next_cell = p_dvd->i_cur_cell = p_pgc->program_map[pgn-1] - 1;
510 DvdReadFindCell( p_dvd );
512 p_dvd->i_next_vobu = p_dvd->i_cur_block =
513 p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
518 p_area->i_angle_nb = p_vmg->tt_srpt->title[p_area->i_id-1].nr_of_angles;
519 p_area->i_angle = config_GetIntVariable( INPUT_ANGLE_VAR );
521 if( ( p_area->i_angle <= 0 ) || p_area->i_angle > p_area->i_angle_nb )
525 p_dvd->i_angle = p_area->i_angle;
526 p_dvd->i_angle_nb = p_area->i_angle_nb;
529 * We've got enough info, time to open the title set data.
531 if( ! ( p_dvd->p_title = DVDOpenFile( p_dvd->p_dvdread,
532 p_vmg->tt_srpt->title[ p_area->i_id - 1 ].title_set_nr,
533 DVD_READ_TITLE_VOBS ) ) )
535 intf_ErrMsg( "dvdread error: can't open title (VTS_%02d_1.VOB)",
536 p_vmg->tt_srpt->title[p_area->i_id-1].title_set_nr );
539 DVDClose( p_dvd->p_dvdread );
543 // IfoPrintTitle( p_dvd );
546 * Destroy obsolete ES by reinitializing program 0
547 * and find all ES in title with ifo data
549 if( p_input->stream.pp_programs != NULL )
551 /* We don't use input_EndStream here since
552 * we keep area structures */
554 for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
556 input_UnselectES( p_input, p_input->stream.pp_selected_es[i] );
559 free( p_input->stream.pp_selected_es );
560 input_DelProgram( p_input, p_input->stream.p_selected_program );
562 p_input->stream.pp_selected_es = NULL;
563 p_input->stream.i_selected_es_number = 0;
566 input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
567 p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
569 /* No PSM to read in DVD mode, we already have all information */
570 p_input->stream.p_selected_program->b_is_ok = 1;
574 /* ES 0 -> video MPEG2 */
575 // IfoPrintVideo( p_dvd );
577 p_es = input_AddES( p_input, p_input->stream.p_selected_program, 0xe0, 0 );
578 p_es->i_stream_id = 0xe0;
579 p_es->i_type = MPEG2_VIDEO_ES;
580 p_es->i_cat = VIDEO_ES;
582 #define audio_control \
583 p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
584 /* Audio ES, in the order they appear in .ifo */
585 for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams ; i++ )
590 // IfoPrintAudio( p_dvd, i );
592 /* audio channel is active if first byte is 0x80 */
593 if( audio_control & 0x8000 )
596 i_position = ( audio_control & 0x7F00 ) >> 8;
598 intf_WarnMsg( 12, "dvd audio position %d", i_position );
599 switch( p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format )
602 i_id = ( ( 0x80 + i_position ) << 8 ) | 0xbd;
603 p_es = input_AddES( p_input,
604 p_input->stream.p_selected_program, i_id, 0 );
605 p_es->i_stream_id = 0xbd;
606 p_es->i_type = AC3_AUDIO_ES;
608 p_es->i_cat = AUDIO_ES;
609 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
610 p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
611 strcat( p_es->psz_desc, " (ac3)" );
615 case 0x03: /* MPEG audio */
616 i_id = 0xc0 + i_position;
617 p_es = input_AddES( p_input,
618 p_input->stream.p_selected_program, i_id, 0 );
619 p_es->i_stream_id = i_id;
620 p_es->i_type = MPEG2_AUDIO_ES;
622 p_es->i_cat = AUDIO_ES;
623 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
624 p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
625 strcat( p_es->psz_desc, " (mpeg)" );
628 case 0x04: /* LPCM */
630 i_id = ( ( 0xa0 + i_position ) << 8 ) | 0xbd;
631 p_es = input_AddES( p_input,
632 p_input->stream.p_selected_program, i_id, 0 );
633 p_es->i_stream_id = i_id;
634 p_es->i_type = LPCM_AUDIO_ES;
636 p_es->i_cat = AUDIO_ES;
637 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
638 p_vts->vtsi_mat->vts_audio_attr[i-1].lang_code ) ) );
639 strcat( p_es->psz_desc, " (lpcm)" );
643 i_id = ( ( 0x88 + i_position ) << 8 ) | 0xbd;
644 intf_ErrMsg( "dvd warning: DTS audio not handled yet"
649 intf_ErrMsg( "dvd warning: unknown audio type %.2x",
650 p_vts->vtsi_mat->vts_audio_attr[i-1].audio_format );
655 #define spu_control \
656 p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
660 for( i = 1 ; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
665 // IfoPrintSpu( p_dvd, i );
666 intf_WarnMsg( 12, "dvd spu %d 0x%02x", i, spu_control );
668 if( spu_control & 0x80000000 )
672 /* there are several streams for one spu */
673 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
676 switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
679 i_position = spu_control & 0xff;
682 i_position = ( spu_control >> 8 ) & 0xff;
685 i_position = ( spu_control >> 16 ) & 0xff;
692 i_position = ( spu_control >> 24 ) & 0x7F;
695 i_id = ( ( 0x20 + i_position ) << 8 ) | 0xbd;
696 p_es = input_AddES( p_input,
697 p_input->stream.p_selected_program, i_id, 0 );
698 p_es->i_stream_id = 0xbd;
699 p_es->i_type = DVD_SPU_ES;
700 p_es->i_cat = SPU_ES;
701 strcpy( p_es->psz_desc, DecodeLanguage( hton16(
702 p_vts->vtsi_mat->vts_subp_attr[i-1].lang_code ) ) );
707 /* FIXME: hack to check that the demuxer is ready, and set
709 if( p_input->p_demux_module )
711 DvdReadLauchDecoders( p_input );
717 p_area = p_input->stream.p_selected_area;
724 if( p_area->i_part != p_dvd->i_chapter )
726 if( ( p_area->i_part > 0 ) &&
727 ( p_area->i_part <= p_area->i_part_nb ))
729 p_dvd->i_ttn = p_vmg->tt_srpt->title[p_area->i_id-1].vts_ttn;
730 pgc_id = p_vts->vts_ptt_srpt->title[
731 p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgcn;
732 pgn = p_vts->vts_ptt_srpt->title[
733 p_dvd->i_ttn-1].ptt[p_area->i_part-1].pgn;
735 p_pgc = p_vts->vts_pgcit->pgci_srp[ pgc_id - 1 ].pgc;
737 p_dvd->i_cur_cell = p_pgc->program_map[ pgn - 1 ] - 1;
738 p_dvd->i_chapter = p_area->i_part;
739 DvdReadFindCell( p_dvd );
741 p_dvd->i_pack_len = 0;
742 p_dvd->i_next_vobu = p_dvd->i_cur_block =
743 p_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
747 p_area->i_part = p_dvd->i_chapter;
753 if( p_area->i_angle != p_dvd->i_angle )
755 p_dvd->i_angle = p_area->i_angle;
757 intf_WarnMsg( 3, "dvd info: angle %d selected", p_area->i_angle );
759 /* warn interface that something has changed */
760 p_area->i_tell = LB2OFF( p_dvd->i_next_vobu ) - p_area->i_start;
761 p_input->stream.b_seekable = 1;
762 p_input->stream.b_changed = 1;
768 /*****************************************************************************
769 * DvdReadRead: reads data packets into the netlist.
770 *****************************************************************************
771 * Returns -1 in case of error, 0 if everything went well, and 1 in case of
773 *****************************************************************************/
774 static int DvdReadRead( input_thread_t * p_input,
775 byte_t * p_buffer, size_t i_count )
777 thread_dvd_data_t * p_dvd;
785 p_dvd = (thread_dvd_data_t *)p_input->p_access_data;
789 * Playback by cell in this pgc, starting at the cell for our chapter.
791 i_blocks = OFF2LB( i_count );
798 * End of pack, we select the following one
800 if( ! p_dvd->i_pack_len )
805 if( ( i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_next_vobu,
808 intf_ErrMsg( "dvdread error: read failed for block %d",
809 p_dvd->i_next_vobu );
813 /* basic check to be sure we don't have a empty title
814 * go to next title if so */
815 //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
818 * Parse the contained dsi packet.
821 DvdReadHandleDSI( p_dvd, p_buf );
824 if( p_dvd->i_next_vobu >= p_dvd->i_end_block + 1 )
829 assert( p_dvd->i_pack_len < 1024 );
830 /* FIXME: Ugly kludge: we send the pack block to the input for it
831 * sometimes has a zero scr and restart the sync */
832 p_dvd->i_cur_block ++;
833 //p_dvd->i_pack_len++;
836 p_buf += DVD_VIDEO_LB_LEN;
841 * Compute the number of blocks to read
843 i_blocks_once = p_dvd->i_pack_len >= i_blocks
844 ? i_blocks : p_dvd->i_pack_len;
845 p_dvd->i_pack_len -= i_blocks_once;
848 i_read = DVDReadBlocks( p_dvd->p_title, p_dvd->i_cur_block,
849 i_blocks_once, p_buf );
850 if( i_read != i_blocks_once )
852 intf_ErrMsg( "dvdread error: read failed for %d/%d blocks at 0x%02x",
853 i_read, i_blocks_once, p_dvd->i_cur_block );
858 i_read_total += i_read;
859 p_dvd->i_cur_block += i_read;
860 p_buf += LB2OFF( i_read );
864 intf_WarnMsg( 12, "dvdread i_blocks: %d len: %d current: 0x%02x", i_read, p_dvd->i_pack_len, p_dvd->i_cur_block );
867 vlc_mutex_lock( &p_input->stream.stream_lock );
869 p_input->stream.p_selected_area->i_tell =
870 LB2OFF( p_dvd->i_cur_block ) -
871 p_input->stream.p_selected_area->i_start;
875 /* We modify i_part only at end of chapter not to erase
876 * some modification from the interface */
877 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
881 if( p_input->stream.p_selected_area->i_tell
882 >= p_input->stream.p_selected_area->i_size || b_eot )
884 if( ( p_input->stream.p_selected_area->i_id + 1 ) >=
885 p_input->stream.i_area_nb )
888 vlc_mutex_unlock( &p_input->stream.stream_lock );
893 intf_WarnMsg( 4, "dvd info: new title" );
894 DvdReadSetArea( p_input, p_input->stream.pp_areas[
895 p_input->stream.p_selected_area->i_id+1] );
896 vlc_mutex_unlock( &p_input->stream.stream_lock );
900 vlc_mutex_unlock( &p_input->stream.stream_lock );
902 return LB2OFF( i_read_total );
906 /*****************************************************************************
907 * DvdReadSeek : Goes to a given position on the stream.
908 *****************************************************************************
909 * This one is used by the input and translate chronological position from
910 * input to logical position on the device.
911 * The lock should be taken before calling this function.
912 *****************************************************************************/
913 static void DvdReadSeek( input_thread_t * p_input, off_t i_off )
915 thread_dvd_data_t * p_dvd;
923 vlc_mutex_lock( &p_input->stream.stream_lock );
924 i_off += p_input->stream.p_selected_area->i_start;
925 vlc_mutex_unlock( &p_input->stream.stream_lock );
927 i_lb = OFF2LB( i_off );
928 p_dvd = ( thread_dvd_data_t * )p_input->p_access_data;
931 while( p_dvd->p_cur_pgc->cell_playback[i_cell].last_sector < i_lb )
943 pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
944 p_dvd->i_ttn-1].ptt[i_chapter-1].pgcn;
945 pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
946 p_dvd->i_ttn-1].ptt[i_chapter-1].pgn;
948 p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
949 i_tmp = p_pgc->program_map[pgn-1];
951 } while( i_tmp <= i_cell );
954 while( p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu]
961 while( p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
962 p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
968 intf_WarnMsg(12, "cell %d i_sub_cell %d chapter %d vobu %d cell_sector %d vobu_sector %d sub_cell_sector %d",
969 i_cell, i_sub_cell,i_chapter, i_vobu,
970 p_dvd->p_cur_pgc->cell_playback[i_cell].first_sector,
971 p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu],
972 p_dvd->p_vts_file->vts_c_adt->cell_adr_table[i_sub_cell-1].start_sector);
974 p_dvd->i_cur_block = i_lb;
976 p_dvd->p_vts_file->vts_vobu_admap->vobu_start_sectors[i_vobu];
977 p_dvd->i_pack_len = p_dvd->i_next_vobu - i_lb;
978 p_dvd->i_cur_cell = i_cell;
979 p_dvd->i_chapter = i_chapter;
980 DvdReadFindCell( p_dvd );
982 vlc_mutex_lock( &p_input->stream.stream_lock );
983 p_input->stream.p_selected_area->i_tell =
984 LB2OFF ( p_dvd->i_cur_block )
985 - p_input->stream.p_selected_area->i_start;
986 p_input->stream.p_selected_area->i_part = p_dvd->i_chapter;
987 vlc_mutex_unlock( &p_input->stream.stream_lock );
992 /*****************************************************************************
994 *****************************************************************************/
995 static void DvdReadHandleDSI( thread_dvd_data_t * p_dvd, u8 * p_data )
997 navRead_DSI( &(p_dvd->dsi_pack), &(p_data[ DSI_START_BYTE ]) );
1000 * Determine where we go next. These values are the ones we mostly
1003 p_dvd->i_cur_block = p_dvd->dsi_pack.dsi_gi.nv_pck_lbn;
1006 * If we're not at the end of this cell, we can determine the next
1007 * VOBU to display using the VOBU_SRI information section of the
1008 * DSI. Using this value correctly follows the current angle,
1009 * avoiding the doubled scenes in The Matrix, and makes our life
1012 if( p_dvd->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL )
1015 switch( ( p_dvd->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1018 /* interleaved unit with no angle */
1019 if( p_dvd->dsi_pack.sml_pbi.ilvu_sa != -1 )
1021 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1022 p_dvd->dsi_pack.sml_pbi.ilvu_sa;
1023 p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1027 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1028 p_dvd->dsi_pack.dsi_gi.vobu_ea + 1;
1029 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1033 /* vobu is end of ilvu */
1034 if( p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address )
1036 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1037 p_dvd->dsi_pack.sml_agli.data[p_dvd->i_angle-1].address;
1038 p_dvd->i_pack_len = p_dvd->dsi_pack.sml_pbi.ilvu_ea;
1043 /* vobu is beginning of ilvu */
1047 /* entering interleaved section */
1049 /* non interleaved cells in interleaved section */
1051 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1052 ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1053 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1057 p_dvd->i_next_vobu = p_dvd->i_cur_block +
1058 ( p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1059 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1064 p_dvd->i_cur_cell = p_dvd->i_next_cell;
1065 DvdReadFindCell( p_dvd );
1067 p_dvd->i_pack_len = p_dvd->dsi_pack.dsi_gi.vobu_ea;
1068 p_dvd->i_next_vobu =
1069 p_dvd->p_cur_pgc->cell_playback[p_dvd->i_cur_cell].first_sector;
1073 intf_WarnMsg( 12, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d",
1074 p_dvd->dsi_pack.dsi_gi.nv_pck_scr,
1075 p_dvd->dsi_pack.dsi_gi.nv_pck_lbn,
1076 p_dvd->dsi_pack.dsi_gi.vobu_ea,
1077 p_dvd->dsi_pack.dsi_gi.vobu_vob_idn,
1078 p_dvd->dsi_pack.dsi_gi.vobu_c_idn );
1080 intf_WarnMsg( 12, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1081 p_dvd->dsi_pack.sml_pbi.category,
1082 p_dvd->dsi_pack.sml_pbi.ilvu_ea,
1083 p_dvd->dsi_pack.sml_pbi.ilvu_sa,
1084 p_dvd->dsi_pack.sml_pbi.size );
1086 intf_WarnMsg( 12, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1087 p_dvd->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1088 p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle - 1 ].address,
1089 p_dvd->dsi_pack.sml_agli.data[ p_dvd->i_angle ].address);
1093 /*****************************************************************************
1095 *****************************************************************************/
1096 static void DvdReadFindCell( thread_dvd_data_t * p_dvd )
1101 #define cell p_dvd->p_cur_pgc->cell_playback
1102 if( cell[p_dvd->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1105 p_dvd->i_next_cell = p_dvd->i_cur_cell + p_dvd->i_angle_nb;
1106 p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1108 p_dvd->i_cur_cell += p_dvd->i_angle - 1;
1110 while( cell[p_dvd->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1114 p_dvd->i_next_cell = p_dvd->i_cur_cell + i + 1;
1119 p_dvd->i_next_cell = p_dvd->i_cur_cell + 1;
1122 pgc_id = p_dvd->p_vts_file->vts_ptt_srpt->title[
1123 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgcn;
1124 pgn = p_dvd->p_vts_file->vts_ptt_srpt->title[
1125 p_dvd->i_ttn-1].ptt[p_dvd->i_chapter-1].pgn;
1126 p_pgc = p_dvd->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc;
1128 if( p_pgc->program_map[pgn-1] <= p_dvd->i_cur_cell )
1135 /*****************************************************************************
1136 * DvdReadLaunchDecoders
1137 *****************************************************************************/
1138 static void DvdReadLauchDecoders( input_thread_t * p_input )
1140 thread_dvd_data_t * p_dvd;
1142 p_dvd = (thread_dvd_data_t*)(p_input->p_access_data);
1144 if( p_main->b_video )
1146 input_SelectES( p_input, p_input->stream.pp_es[0] );
1149 if( p_main->b_audio )
1151 /* For audio: first one if none or a not existing one specified */
1152 int i_audio = config_GetIntVariable( INPUT_CHANNEL_VAR );
1153 if( i_audio < 0 /*|| i_audio > i_audio_nb*/ )
1155 config_PutIntVariable( INPUT_CHANNEL_VAR, 1 );
1158 if( i_audio > 0/* && i_audio_nb > 0*/ )
1160 if( config_GetIntVariable( AOUT_SPDIF_VAR ) ||
1161 ( config_GetIntVariable( INPUT_AUDIO_VAR ) ==
1164 int i_ac3 = i_audio;
1165 while( ( p_input->stream.pp_es[i_ac3]->i_type !=
1166 AC3_AUDIO_ES ) && ( i_ac3 <=
1167 p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams ) )
1171 if( p_input->stream.pp_es[i_ac3]->i_type == AC3_AUDIO_ES )
1173 input_SelectES( p_input,
1174 p_input->stream.pp_es[i_ac3] );
1179 input_SelectES( p_input,
1180 p_input->stream.pp_es[i_audio] );
1185 if( p_main->b_video )
1187 /* for spu, default is none */
1188 int i_spu = config_GetIntVariable( INPUT_SUBTITLE_VAR );
1189 if( i_spu < 0 /*|| i_spu > i_spu_nb*/ )
1191 config_PutIntVariable( INPUT_SUBTITLE_VAR, 0 );
1194 if( i_spu > 0 /*&& i_spu_nb > 0*/ )
1196 i_spu += p_dvd->p_vts_file->vtsi_mat->nr_of_vts_audio_streams;
1197 input_SelectES( p_input, p_input->stream.pp_es[i_spu] );