1 /*****************************************************************************
2 * access.c: access capabilities for dvdplay plugin.
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: access.c,v 1.12 2003/03/09 19:25:09 gbazin Exp $
7 * Author: Stéphane Borel <stef@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc/input.h>
33 #include "../../demux/mpeg/system.h"
40 #include <sys/types.h>
44 #ifdef STRNCASECMP_IN_STRINGS_H
49 # include <io.h> /* read() */
57 /*****************************************************************************
59 *****************************************************************************/
60 /* called from outside */
61 static int dvdplay_SetArea ( input_thread_t *, input_area_t * );
62 static int dvdplay_SetProgram ( input_thread_t *, pgrm_descriptor_t * );
63 static int dvdplay_Read ( input_thread_t *, byte_t *, size_t );
64 static void dvdplay_Seek ( input_thread_t *, off_t );
66 static void pf_vmg_callback ( void*, dvdplay_event_t );
68 /* only from inside */
69 static int dvdNewArea( input_thread_t *, input_area_t * );
70 static int dvdNewPGC ( input_thread_t * );
72 /*****************************************************************************
73 * OpenDVD: open libdvdplay
74 *****************************************************************************/
75 int E_(OpenDVD) ( vlc_object_t *p_this )
77 input_thread_t * p_input = (input_thread_t *)p_this;
80 input_area_t * p_area;
81 unsigned int i_title_nr;
83 unsigned int i_chapter;
87 p_dvd = malloc( sizeof(dvd_data_t) );
90 msg_Err( p_input, "out of memory" );
94 p_input->p_access_data = (void *)p_dvd;
96 p_input->pf_read = dvdplay_Read;
97 p_input->pf_seek = dvdplay_Seek;
98 p_input->pf_set_area = dvdplay_SetArea;
99 p_input->pf_set_program = dvdplay_SetProgram;
102 if( ( psz_source = dvdplay_ParseCL( p_input,
103 &i_title, &i_chapter, &i_angle ) ) == NULL )
109 /* Open libdvdplay */
110 p_dvd->vmg = dvdplay_open( psz_source, pf_vmg_callback, (void*)p_input );
112 if( p_dvd->vmg == NULL )
114 msg_Err( p_input, "cannot open %s", psz_source );
120 /* free allocated strings */
123 p_dvd->p_intf = NULL;
125 p_dvd->i_still_time = 0;
130 /* Set stream and area data */
131 vlc_mutex_lock( &p_input->stream.stream_lock );
133 /* If we are here we can control the pace... */
134 p_input->stream.b_pace_control = 1;
135 /* seek is only allowed when we have size info */
136 p_input->stream.b_seekable = 0;
137 p_input->stream.b_connected = 1;
139 /* Initialize ES structures */
140 input_InitStream( p_input, sizeof( stream_ps_data_t ) );
142 /* disc input method */
143 p_input->stream.i_method = INPUT_METHOD_DVD;
145 i_title_nr = dvdplay_title_nr( p_dvd->vmg );
146 #define area p_input->stream.pp_areas
148 /* Area 0 for menu */
149 area[0]->i_plugin_data = 0;
151 for( i = 1 ; i <= i_title_nr ; i++ )
153 input_AddArea( p_input );
158 /* Number of chapters */
159 area[i]->i_part_nb = dvdplay_chapter_nr( p_dvd->vmg, i );
161 area[i]->i_plugin_data = 0;
164 msg_Dbg( p_input, "number of titles: %d", i_title_nr );
166 i_title = i_title <= i_title_nr ? i_title : 0;
168 p_area = p_input->stream.pp_areas[i_title];
169 p_area->i_part = i_chapter;
170 p_input->stream.p_selected_area = NULL;
172 /* set title, chapter, audio and subpic */
173 if( dvdplay_SetArea( p_input, p_area ) )
175 vlc_mutex_unlock( &p_input->stream.stream_lock );
179 if( i_angle <= p_input->stream.i_pgrm_number )
181 dvdplay_SetProgram( p_input,
182 p_input->stream.pp_programs[i_angle - 1] );
185 vlc_mutex_unlock( &p_input->stream.stream_lock );
187 if( !p_input->psz_demux || !*p_input->psz_demux )
189 p_input->psz_demux = "dvdplay";
192 /* FIXME: we might lose variables here */
193 var_Create( p_input, "x-start", VLC_VAR_INTEGER );
194 var_Create( p_input, "y-start", VLC_VAR_INTEGER );
195 var_Create( p_input, "x-end", VLC_VAR_INTEGER );
196 var_Create( p_input, "y-end", VLC_VAR_INTEGER );
198 var_Create( p_input, "color", VLC_VAR_ADDRESS );
199 var_Create( p_input, "contrast", VLC_VAR_ADDRESS );
201 var_Create( p_input, "highlight", VLC_VAR_BOOL );
202 var_Create( p_input, "highlight-mutex", VLC_VAR_MUTEX );
207 /*****************************************************************************
208 * CloseDVD: close libdvdplay
209 *****************************************************************************/
210 void E_(CloseDVD) ( vlc_object_t *p_this )
212 input_thread_t * p_input = (input_thread_t *)p_this;
213 dvd_data_t * p_dvd = (dvd_data_t *)p_input->p_access_data;
215 var_Destroy( p_input, "highlight-mutex" );
216 var_Destroy( p_input, "highlight" );
218 var_Destroy( p_input, "x-start" );
219 var_Destroy( p_input, "x-end" );
220 var_Destroy( p_input, "y-start" );
221 var_Destroy( p_input, "y-end" );
223 var_Destroy( p_input, "color" );
224 var_Destroy( p_input, "contrast" );
226 /* close libdvdplay */
227 dvdplay_close( p_dvd->vmg );
230 p_input->p_access_data = NULL;
234 /*****************************************************************************
235 * dvdplay_SetProgram: set dvd angle.
236 *****************************************************************************
237 * This is actually a hack to make angle change through vlc interface with
238 * no need for a specific button.
239 *****************************************************************************/
240 static int dvdplay_SetProgram( input_thread_t * p_input,
241 pgrm_descriptor_t * p_program )
243 if( p_input->stream.p_selected_program != p_program )
248 p_dvd = (dvd_data_t*)(p_input->p_access_data);
249 i_angle = p_program->i_number;
251 if( !dvdplay_angle( p_dvd->vmg, i_angle ) )
253 memcpy( p_program, p_input->stream.p_selected_program,
254 sizeof(pgrm_descriptor_t) );
255 p_program->i_number = i_angle;
256 p_input->stream.p_selected_program = p_program;
258 msg_Dbg( p_input, "angle %d selected", i_angle );
265 /*****************************************************************************
266 * dvdplay_SetArea: initialize input data for title x, chapter y.
267 * It should be called for each user navigation request.
268 *****************************************************************************
269 * Take care that i_title starts from 0 (vmg) and i_chapter start from 1.
270 * Note that you have to take the lock before entering here.
271 *****************************************************************************/
272 static int dvdplay_SetArea( input_thread_t * p_input, input_area_t * p_area )
276 p_dvd = (dvd_data_t*)p_input->p_access_data;
281 if( p_area != p_input->stream.p_selected_area )
285 /* prevent intf to try to seek */
286 p_input->stream.b_seekable = 0;
288 /* Store selected chapter */
289 i_chapter = p_area->i_part;
291 dvdNewArea( p_input, p_area );
294 dvdNewPGC( p_input );
296 dvdplay_start( p_dvd->vmg, p_area->i_id );
298 p_area->i_part = i_chapter;
303 p_area = p_input->stream.p_selected_area;
310 if( (int)p_area->i_part != dvdplay_chapter_cur( p_dvd->vmg ) )
312 if( ( p_area->i_part > 0 ) &&
313 ( p_area->i_part <= p_area->i_part_nb ))
315 dvdplay_pg( p_dvd->vmg, p_area->i_part );
317 p_area->i_part = dvdplay_chapter_cur( p_dvd->vmg );
320 /* warn interface that something has changed */
322 LB2OFF( dvdplay_position( p_dvd->vmg ) ) - p_area->i_start;
323 p_input->stream.b_changed = 1;
328 /*****************************************************************************
329 * dvdplay_Read: reads data packets.
330 *****************************************************************************
331 * Returns -1 in case of error, the number of bytes read if everything went
333 *****************************************************************************/
334 static int dvdplay_Read( input_thread_t * p_input,
335 byte_t * p_buffer, size_t i_count )
340 p_dvd = (dvd_data_t *)p_input->p_access_data;
342 vlc_mutex_lock( &p_input->stream.stream_lock );
343 i_read = LB2OFF( dvdplay_read( p_dvd->vmg, p_buffer, OFF2LB( i_count ) ) );
344 vlc_mutex_unlock( &p_input->stream.stream_lock );
349 /*****************************************************************************
350 * dvdplay_Seek : Goes to a given position on the stream.
351 *****************************************************************************
352 * This one is used by the input and translate chronological position from
353 * input to logical position on the device.
354 * The lock should be taken before calling this function.
355 *****************************************************************************/
356 static void dvdplay_Seek( input_thread_t * p_input, off_t i_off )
360 p_dvd = (dvd_data_t *)p_input->p_access_data;
362 vlc_mutex_lock( &p_input->stream.stream_lock );
364 dvdplay_seek( p_dvd->vmg, OFF2LB( i_off ) );
366 p_input->stream.p_selected_area->i_tell =
367 LB2OFF( dvdplay_position( p_dvd->vmg ) ) -
368 p_input->stream.p_selected_area->i_start;
370 vlc_mutex_unlock( &p_input->stream.stream_lock );
376 /*****************************************************************************
377 * pf_vmg_callback: called by libdvdplay when some event happens
378 *****************************************************************************
379 * The stream lock has to be taken before entering here
380 *****************************************************************************/
381 static void pf_vmg_callback( void* p_args, dvdplay_event_t event )
383 input_thread_t * p_input;
388 p_input = (input_thread_t*)p_args;
389 p_dvd = (dvd_data_t*)p_input->p_access_data;
401 /* prevent intf to try to seek by default */
402 p_input->stream.b_seekable = 0;
404 i = dvdplay_title_cur( p_dvd->vmg );
405 if( i != p_input->stream.p_selected_area->i_id )
407 /* the title number has changed: update area */
408 msg_Warn( p_input, "new title %d (%d)", i,
409 p_input->stream.p_selected_area->i_id );
411 p_input->stream.pp_areas[i] );
414 /* new pgc in same title: reinit ES */
415 dvdNewPGC( p_input );
417 p_input->stream.b_changed = 1;
421 /* update current chapter */
422 p_input->stream.p_selected_area->i_part =
423 dvdplay_chapter_cur( p_dvd->vmg );
425 p_input->stream.p_selected_area->i_tell =
426 LB2OFF( dvdplay_position( p_dvd->vmg ) ) -
427 p_input->stream.p_selected_area->i_start;
429 /* warn interface that something has changed */
430 p_input->stream.b_changed = 1;
433 p_dvd->b_end_of_cell = 0;
436 p_dvd->b_end_of_cell = 1;
439 dvdplay_ES( p_input );
442 /* we must pause only from demux
443 * when the data in cache has been decoded */
444 p_dvd->i_still_time = dvdplay_still_time( p_dvd->vmg );
445 msg_Dbg( p_input, "still time %d", p_dvd->i_still_time );
450 if( var_Get( p_input, "highlight-mutex", &val ) == VLC_SUCCESS )
452 vlc_mutex_t *p_mutex = val.p_address;
453 vlc_mutex_lock( p_mutex );
455 /* Retrieve the highlight from dvdplay */
456 dvdplay_highlight( p_dvd->vmg, &p_dvd->hli );
458 if( p_dvd->hli.i_x_start || p_dvd->hli.i_y_start ||
459 p_dvd->hli.i_x_end || p_dvd->hli.i_y_end )
461 /* Fill our internal variables with this data */
462 val.i_int = p_dvd->hli.i_x_start;
463 var_Set( p_input, "x-start", val );
464 val.i_int = p_dvd->hli.i_y_start;
465 var_Set( p_input, "y-start", val );
466 val.i_int = p_dvd->hli.i_x_end;
467 var_Set( p_input, "x-end", val );
468 val.i_int = p_dvd->hli.i_y_end;
469 var_Set( p_input, "y-end", val );
471 val.p_address = (void *)p_dvd->hli.pi_color;
472 var_Set( p_input, "color", val );
473 val.p_address = (void *)p_dvd->hli.pi_contrast;
474 var_Set( p_input, "contrast", val );
476 /* Tell the SPU decoder that there's a new highlight */
477 val.b_bool = VLC_TRUE;
481 /* Turn off the highlight */
482 val.b_bool = VLC_FALSE;
484 var_Set( p_input, "highlight", val );
486 vlc_mutex_unlock( p_mutex );
490 msg_Err( p_input, "unknown event from libdvdplay (%d)", event );
496 static int dvdNewArea( input_thread_t * p_input, input_area_t * p_area )
499 int i_angle_nb, i_angle;
502 p_dvd = (dvd_data_t*)p_input->p_access_data;
504 p_input->stream.p_selected_area = p_area;
507 * One program for each angle
509 while( p_input->stream.i_pgrm_number )
511 input_DelProgram( p_input, p_input->stream.pp_programs[0] );
514 input_AddProgram( p_input, 1, sizeof( stream_ps_data_t ) );
515 p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
517 dvdplay_angle_info( p_dvd->vmg, &i_angle_nb, &i_angle );
518 for( i = 1 ; i < i_angle_nb ; i++ )
520 input_AddProgram( p_input, i+1, 0 );
523 dvdplay_SetProgram( p_input,
524 p_input->stream.pp_programs[i_angle-1] );
526 /* No PSM to read in DVD mode, we already have all information */
527 p_input->stream.p_selected_program->b_is_ok = 1;
532 static int dvdNewPGC( input_thread_t * p_input )
535 // int i_audio_nr = -1;
537 // int i_subp_nr = -1;
541 p_dvd = (dvd_data_t*)p_input->p_access_data;
543 // dvdplay_audio_info( p_dvd->vmg, &i_audio_nr, &i_audio );
544 // dvdplay_subp_info( p_dvd->vmg, &i_subp_nr, &i_subp );
546 dvdplay_ES( p_input );
547 p_input->stream.p_selected_area->i_start =
548 LB2OFF( dvdplay_title_first( p_dvd->vmg ) );
549 p_input->stream.p_selected_area->i_size =
550 LB2OFF( dvdplay_title_end ( p_dvd->vmg ) ) -
551 p_input->stream.p_selected_area->i_start;
552 p_input->stream.p_selected_area->i_tell = 0;
554 if( p_input->stream.p_selected_area->i_size > 0 )
556 p_input->stream.b_seekable = 1;
560 p_input->stream.b_seekable = 0;
564 i_sec = dvdplay_title_time( p_dvd->vmg );
565 msg_Dbg( p_input, "title time: %d:%02d:%02d (%d)",
566 i_sec/3600, (i_sec%3600)/60, i_sec%60, i_sec );