1 /*****************************************************************************
2 * rc.c : remote control stdin/stdout plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: rc.c,v 1.37 2003/07/28 07:16:50 fenrir Exp $
7 * Authors: Peter Surda <shurdeek@panorama.sth.ac.at>
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 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
30 #include <errno.h> /* ENOMEM */
44 #ifdef HAVE_SYS_TIME_H
45 # include <sys/time.h>
47 #include <sys/types.h>
49 #include "vlc_error.h"
51 #define MAX_LINE_LENGTH 256
53 /*****************************************************************************
55 *****************************************************************************/
56 static int Activate ( vlc_object_t * );
57 static void Run ( intf_thread_t *p_intf );
59 static int Input ( vlc_object_t *, char const *,
60 vlc_value_t, vlc_value_t, void * );
61 static int Playlist ( vlc_object_t *, char const *,
62 vlc_value_t, vlc_value_t, void * );
63 static int Quit ( vlc_object_t *, char const *,
64 vlc_value_t, vlc_value_t, void * );
65 static int Intf ( vlc_object_t *, char const *,
66 vlc_value_t, vlc_value_t, void * );
67 static int Volume ( vlc_object_t *, char const *,
68 vlc_value_t, vlc_value_t, void * );
69 static int VolumeMove ( vlc_object_t *, char const *,
70 vlc_value_t, vlc_value_t, void * );
71 static int AudioConfig ( vlc_object_t *, char const *,
72 vlc_value_t, vlc_value_t, void * );
74 /*****************************************************************************
76 *****************************************************************************/
77 #define POS_TEXT N_("Show stream position")
78 #define POS_LONGTEXT N_("Show the current position in seconds within the stream from time to time.")
80 #define TTY_TEXT N_("Fake TTY")
81 #define TTY_LONGTEXT N_("Force the rc plugin to use stdin as if it was a TTY.")
84 add_category_hint( N_("Remote control"), NULL, VLC_TRUE );
85 add_bool( "rc-show-pos", 0, NULL, POS_TEXT, POS_LONGTEXT, VLC_TRUE );
87 add_bool( "fake-tty", 0, NULL, TTY_TEXT, TTY_LONGTEXT, VLC_TRUE );
89 set_description( _("remote control interface") );
90 set_capability( "interface", 20 );
91 set_callbacks( Activate, NULL );
94 /*****************************************************************************
95 * Activate: initialize and create stuff
96 *****************************************************************************/
97 static int Activate( vlc_object_t *p_this )
99 intf_thread_t *p_intf = (intf_thread_t*)p_this;
101 #if defined(HAVE_ISATTY) && !defined(WIN32)
102 /* Check that stdin is a TTY */
103 if( !config_GetInt( p_intf, "fake-tty" ) && !isatty( 0 ) )
105 msg_Warn( p_intf, "fd 0 is not a TTY" );
110 /* Non-buffered stdout */
111 setvbuf( stdout, (char *)NULL, _IOLBF, 0 );
113 p_intf->pf_run = Run;
117 printf( "remote control interface initialized, `h' for help\n" );
121 /*****************************************************************************
123 *****************************************************************************
124 * This part of the interface is in a separate thread so that we can call
125 * exec() from within it without annoying the rest of the program.
126 *****************************************************************************/
127 static void Run( intf_thread_t *p_intf )
129 input_thread_t * p_input;
130 playlist_t * p_playlist;
132 char p_buffer[ MAX_LINE_LENGTH + 1 ];
133 vlc_bool_t b_showpos = config_GetInt( p_intf, "rc-show-pos" );
134 input_info_category_t * p_category;
135 input_info_t * p_info;
141 double f_ratio = 1.0;
145 INPUT_RECORD input_record;
152 /* Register commands that will be cleaned up upon object destruction */
153 var_Create( p_intf, "quit", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
154 var_AddCallback( p_intf, "quit", Quit, NULL );
155 var_Create( p_intf, "intf", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
156 var_AddCallback( p_intf, "intf", Intf, NULL );
158 var_Create( p_intf, "add", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
159 var_AddCallback( p_intf, "add", Playlist, NULL );
160 var_Create( p_intf, "playlist", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
161 var_AddCallback( p_intf, "playlist", Playlist, NULL );
162 var_Create( p_intf, "play", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
163 var_AddCallback( p_intf, "play", Playlist, NULL );
164 var_Create( p_intf, "stop", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
165 var_AddCallback( p_intf, "stop", Playlist, NULL );
166 var_Create( p_intf, "prev", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
167 var_AddCallback( p_intf, "prev", Playlist, NULL );
168 var_Create( p_intf, "next", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
169 var_AddCallback( p_intf, "next", Playlist, NULL );
171 var_Create( p_intf, "pause", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
172 var_AddCallback( p_intf, "pause", Input, NULL );
173 var_Create( p_intf, "seek", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
174 var_AddCallback( p_intf, "seek", Input, NULL );
175 var_Create( p_intf, "title", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
176 var_AddCallback( p_intf, "title", Input, NULL );
177 var_Create( p_intf, "title_n", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
178 var_AddCallback( p_intf, "title_n", Input, NULL );
179 var_Create( p_intf, "title_p", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
180 var_AddCallback( p_intf, "title_p", Input, NULL );
181 var_Create( p_intf, "chapter", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
182 var_AddCallback( p_intf, "chapter", Input, NULL );
183 var_Create( p_intf, "chapter_n", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
184 var_AddCallback( p_intf, "chapter_n", Input, NULL );
185 var_Create( p_intf, "chapter_p", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
186 var_AddCallback( p_intf, "chapter_p", Input, NULL );
188 var_Create( p_intf, "volume", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
189 var_AddCallback( p_intf, "volume", Volume, NULL );
190 var_Create( p_intf, "volup", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
191 var_AddCallback( p_intf, "volup", VolumeMove, NULL );
192 var_Create( p_intf, "voldown", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
193 var_AddCallback( p_intf, "voldown", VolumeMove, NULL );
194 var_Create( p_intf, "adev", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
195 var_AddCallback( p_intf, "adev", AudioConfig, NULL );
196 var_Create( p_intf, "achan", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
197 var_AddCallback( p_intf, "achan", AudioConfig, NULL );
200 /* Get the file descriptor of the console input */
201 hConsoleIn = GetStdHandle(STD_INPUT_HANDLE);
202 if( hConsoleIn == INVALID_HANDLE_VALUE )
204 msg_Err( p_intf, "Couldn't open STD_INPUT_HANDLE" );
205 p_intf->b_die = VLC_TRUE;
209 while( !p_intf->b_die )
211 vlc_bool_t b_complete = VLC_FALSE;
219 tv.tv_usec = (long)INTF_IDLE_SLEEP;
221 FD_SET( STDIN_FILENO, &fds );
223 i_dummy = select( STDIN_FILENO + 1, &fds, NULL, NULL, &tv );
225 /* On Win32, select() only works on socket descriptors */
226 i_dummy = ( WaitForSingleObject( hConsoleIn, INTF_IDLE_SLEEP/1000 )
233 while( !p_intf->b_die
234 && i_size < MAX_LINE_LENGTH
236 && read( STDIN_FILENO, p_buffer + i_size, 1 ) > 0
238 && ReadConsoleInput( hConsoleIn, &input_record, 1,
244 if( input_record.EventType != KEY_EVENT ||
245 !input_record.Event.KeyEvent.bKeyDown ||
246 input_record.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT ||
247 input_record.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL||
248 input_record.Event.KeyEvent.wVirtualKeyCode == VK_MENU ||
249 input_record.Event.KeyEvent.wVirtualKeyCode == VK_CAPITAL )
251 /* nothing interesting */
256 input_record.Event.KeyEvent.uChar.AsciiChar;
258 /* Echo out the command */
259 putc( p_buffer[ i_size ], stdout );
261 /* Handle special keys */
262 if( p_buffer[ i_size ] == '\r' || p_buffer[ i_size ] == '\n' )
264 putc( '\n', stdout );
267 switch( p_buffer[ i_size ] )
274 putc( '\b', stdout );
285 if( p_buffer[ i_size ] == '\r' || p_buffer[ i_size ] == '\n' )
294 if( i_size == MAX_LINE_LENGTH
295 || p_buffer[ i_size ] == '\r'
296 || p_buffer[ i_size ] == '\n' )
298 p_buffer[ i_size ] = 0;
299 b_complete = VLC_TRUE;
303 /* Manage the input part */
304 if( p_input == NULL )
308 p_input = vlc_object_find( p_playlist, VLC_OBJECT_INPUT,
313 p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
317 p_playlist = vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
322 else if( p_input->b_dead )
324 vlc_object_release( p_input );
328 if( p_input && b_showpos )
331 vlc_mutex_lock( &p_input->stream.stream_lock );
332 if( !p_input->b_die && p_input->stream.i_mux_rate )
334 #define A p_input->stream.p_selected_area
335 f_ratio = 1.0 / ( 50 * p_input->stream.i_mux_rate );
336 i_newpos = A->i_tell * f_ratio;
338 if( i_oldpos != i_newpos )
341 printf( "pos: %li s / %li s\n", (long int)i_newpos,
342 (long int)(f_ratio * A->i_size) );
346 vlc_mutex_unlock( &p_input->stream.stream_lock );
349 /* Is there something to do? */
352 char *psz_cmd, *psz_arg;
354 /* Skip heading spaces */
356 while( *psz_cmd == ' ' )
361 /* Split psz_cmd at the first space and make sure that
362 * psz_arg is valid */
363 psz_arg = strchr( psz_cmd, ' ' );
367 while( *psz_arg == ' ' )
377 /* If the user typed a registered local command, try it */
378 if( var_Type( p_intf, psz_cmd ) & VLC_VAR_ISCOMMAND )
383 val.psz_string = psz_arg;
384 i_ret = var_Set( p_intf, psz_cmd, val );
385 printf( "%s: returned %i (%s)\n",
386 psz_cmd, i_ret, vlc_error( i_ret ) );
388 /* Or maybe it's a global command */
389 else if( var_Type( p_intf->p_libvlc, psz_cmd ) & VLC_VAR_ISCOMMAND )
394 val.psz_string = psz_arg;
395 /* FIXME: it's a global command, but we should pass the
396 * local object as an argument, not p_intf->p_libvlc. */
397 i_ret = var_Set( p_intf->p_libvlc, psz_cmd, val );
398 printf( "%s: returned %i (%s)\n",
399 psz_cmd, i_ret, vlc_error( i_ret ) );
401 else if( !strcmp( psz_cmd, "info" ) )
405 vlc_mutex_lock( &p_input->stream.stream_lock );
406 p_category = p_input->stream.p_info;
409 printf( "+----[ %s ]\n", p_category->psz_name );
411 p_info = p_category->p_info;
414 printf( "| %s: %s\n", p_info->psz_name,
416 p_info = p_info->p_next;
418 p_category = p_category->p_next;
421 printf( "+----[ end of stream info ]\n" );
422 vlc_mutex_unlock( &p_input->stream.stream_lock );
426 printf( "no input\n" );
429 else switch( psz_cmd[0] )
435 vout_thread_t *p_vout;
436 p_vout = vlc_object_find( p_input,
437 VLC_OBJECT_VOUT, FIND_CHILD );
441 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
442 vlc_object_release( p_vout );
455 printf("+----[ remote control commands ]\n");
457 printf("| add XYZ . . . . . . . . . . add XYZ to playlist\n");
458 printf("| playlist . . . show items currently in playlist\n");
459 printf("| play . . . . . . . . . . . . . . . . play stream\n");
460 printf("| stop . . . . . . . . . . . . . . . . stop stream\n");
461 printf("| next . . . . . . . . . . . . next playlist item\n");
462 printf("| prev . . . . . . . . . . previous playlist item\n");
463 printf("| title [X] . . . . set/get title in current item\n");
464 printf("| title_n . . . . . . next title in current item\n");
465 printf("| title_p . . . . previous title in current item\n");
466 printf("| chapter [X] . . set/get chapter in current item\n");
467 printf("| chapter_n . . . . next chapter in current item\n");
468 printf("| chapter_p . . previous chapter in current item\n");
470 printf("| seek X . seek in seconds, for instance `seek 12'\n");
471 printf("| pause . . . . . . . . . . . . . . toggle pause\n");
472 printf("| f . . . . . . . . . . . . . . toggle fullscreen\n");
473 printf("| info . . . information about the current stream\n");
475 printf("| volume [X] . . . . . . . . set/get audio volume\n");
476 printf("| volup [X] . . . . . raise audio volume X steps\n");
477 printf("| voldown [X] . . . . lower audio volume X steps\n");
478 printf("| adev [X] . . . . . . . . . set/get audio device\n");
479 printf("| achan [X]. . . . . . . . set/get audio channels\n");
481 printf("| help . . . . . . . . . . . . . this help message\n");
482 printf("| quit . . . . . . . . . . . . . . . . . quit vlc\n");
484 printf("+----[ end of help ]\n");
487 /* Ignore empty lines */
490 printf( "unknown command `%s', type `help' for help\n", psz_cmd );
498 vlc_object_release( p_input );
504 vlc_object_release( p_playlist );
509 static int Input( vlc_object_t *p_this, char const *psz_cmd,
510 vlc_value_t oldval, vlc_value_t newval, void *p_data )
512 input_thread_t * p_input;
514 p_input = vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
521 /* Parse commands that only require an input */
522 if( !strcmp( psz_cmd, "pause" ) )
524 input_SetStatus( p_input, INPUT_STATUS_PAUSE );
525 vlc_object_release( p_input );
528 else if( !strcmp( psz_cmd, "seek" ) )
530 if( strlen( newval.psz_string ) > 0 &&
531 newval.psz_string[strlen( newval.psz_string ) - 1] == '%' )
533 input_Seek( p_input, atoi( newval.psz_string ),
534 INPUT_SEEK_PERCENT | INPUT_SEEK_SET );
538 input_Seek( p_input, atoi( newval.psz_string ),
539 INPUT_SEEK_SECONDS | INPUT_SEEK_SET );
541 vlc_object_release( p_input );
544 else if( !strcmp( psz_cmd, "chapter" ) ||
545 !strcmp( psz_cmd, "chapter_n" ) ||
546 !strcmp( psz_cmd, "chapter_p" ) )
548 unsigned int i_chapter = 0;
550 if( !strcmp( psz_cmd, "chapter" ) )
552 if ( *newval.psz_string )
555 i_chapter = atoi( newval.psz_string );
560 vlc_mutex_lock( &p_input->stream.stream_lock );
561 printf( "Currently playing chapter %d/%d\n",
562 p_input->stream.p_selected_area->i_part,
563 p_input->stream.p_selected_area->i_part_nb - 1 );
564 vlc_mutex_unlock( &p_input->stream.stream_lock );
566 vlc_object_release( p_input );
570 else if( !strcmp( psz_cmd, "chapter_n" ) )
572 vlc_mutex_lock( &p_input->stream.stream_lock );
573 i_chapter = p_input->stream.p_selected_area->i_part + 1;
574 vlc_mutex_unlock( &p_input->stream.stream_lock );
576 else if( !strcmp( psz_cmd, "chapter_p" ) )
578 vlc_mutex_lock( &p_input->stream.stream_lock );
579 i_chapter = p_input->stream.p_selected_area->i_part - 1;
580 vlc_mutex_unlock( &p_input->stream.stream_lock );
583 vlc_mutex_lock( &p_input->stream.stream_lock );
584 if( ( i_chapter > 0 ) && ( i_chapter <
585 p_input->stream.p_selected_area->i_part_nb ) )
587 input_area_t *p_area = p_input->stream.p_selected_area;
588 p_input->stream.p_selected_area->i_part = i_chapter;
589 vlc_mutex_unlock( &p_input->stream.stream_lock );
590 input_ChangeArea( p_input, p_area );
591 input_SetStatus( p_input, INPUT_STATUS_PLAY );
592 vlc_mutex_lock( &p_input->stream.stream_lock );
594 vlc_mutex_unlock( &p_input->stream.stream_lock );
596 vlc_object_release( p_input );
599 else if( !strcmp( psz_cmd, "title" ) ||
600 !strcmp( psz_cmd, "title_n" ) ||
601 !strcmp( psz_cmd, "title_p" ) )
603 unsigned int i_title = 0;
605 if( !strcmp( psz_cmd, "title" ) )
607 if ( *newval.psz_string )
610 i_title = atoi( newval.psz_string );
615 vlc_mutex_lock( &p_input->stream.stream_lock );
616 printf( "Currently playing title %d/%d\n",
617 p_input->stream.p_selected_area->i_id,
618 p_input->stream.i_area_nb - 1 );
619 vlc_mutex_unlock( &p_input->stream.stream_lock );
621 vlc_object_release( p_input );
625 else if( !strcmp( psz_cmd, "title_n" ) )
627 vlc_mutex_lock( &p_input->stream.stream_lock );
628 i_title = p_input->stream.p_selected_area->i_id + 1;
629 vlc_mutex_unlock( &p_input->stream.stream_lock );
631 else if( !strcmp( psz_cmd, "title_p" ) )
633 vlc_mutex_lock( &p_input->stream.stream_lock );
634 i_title = p_input->stream.p_selected_area->i_id - 1;
635 vlc_mutex_unlock( &p_input->stream.stream_lock );
638 vlc_mutex_lock( &p_input->stream.stream_lock );
639 if( ( i_title > 0 ) && ( i_title < p_input->stream.i_area_nb ) )
641 input_area_t *p_area = p_input->stream.pp_areas[i_title];
642 vlc_mutex_unlock( &p_input->stream.stream_lock );
643 input_ChangeArea( p_input, p_area );
644 input_SetStatus( p_input, INPUT_STATUS_PLAY );
645 vlc_mutex_lock( &p_input->stream.stream_lock );
647 vlc_mutex_unlock( &p_input->stream.stream_lock );
649 vlc_object_release( p_input );
657 static int Playlist( vlc_object_t *p_this, char const *psz_cmd,
658 vlc_value_t oldval, vlc_value_t newval, void *p_data )
660 playlist_t * p_playlist;
662 p_playlist = vlc_object_find( p_this, VLC_OBJECT_PLAYLIST,
669 /* Parse commands that require a playlist */
670 if( !strcmp( psz_cmd, "prev" ) )
672 playlist_Prev( p_playlist );
674 else if( !strcmp( psz_cmd, "next" ) )
676 playlist_Next( p_playlist );
678 else if( !strcmp( psz_cmd, "play" ) )
680 playlist_Play( p_playlist );
682 else if( !strcmp( psz_cmd, "stop" ) )
684 playlist_Stop( p_playlist );
686 else if( !strcmp( psz_cmd, "add" ) )
688 printf( "trying to add %s to playlist\n", newval.psz_string );
689 playlist_Add( p_playlist, newval.psz_string, NULL, 0,
690 PLAYLIST_GO|PLAYLIST_APPEND, PLAYLIST_END );
692 else if( !strcmp( psz_cmd, "playlist" ) )
695 for ( i = 0; i < p_playlist->i_size; i++ )
697 printf( "|%s%s %s|\n", i == p_playlist->i_index?"*":" ",
698 p_playlist->pp_items[i]->psz_name,
699 p_playlist->pp_items[i]->psz_uri );
703 printf( "| no entries\n" );
711 printf( "unknown command!\n" );
714 vlc_object_release( p_playlist );
718 static int Quit( vlc_object_t *p_this, char const *psz_cmd,
719 vlc_value_t oldval, vlc_value_t newval, void *p_data )
721 p_this->p_vlc->b_die = VLC_TRUE;
725 static int Intf( vlc_object_t *p_this, char const *psz_cmd,
726 vlc_value_t oldval, vlc_value_t newval, void *p_data )
728 intf_thread_t *p_newintf;
730 p_newintf = intf_Create( p_this->p_vlc, newval.psz_string );
734 p_newintf->b_block = VLC_FALSE;
735 if( intf_RunThread( p_newintf ) )
737 vlc_object_detach( p_newintf );
738 intf_Destroy( p_newintf );
745 static int Volume( vlc_object_t *p_this, char const *psz_cmd,
746 vlc_value_t oldval, vlc_value_t newval, void *p_data )
750 if ( *newval.psz_string )
753 audio_volume_t i_volume = atoi( newval.psz_string );
754 if ( i_volume > AOUT_VOLUME_MAX )
756 printf( "Volume must be in the range %d-%d\n", AOUT_VOLUME_MIN,
758 i_error = VLC_EBADVAR;
760 else i_error = aout_VolumeSet( p_this, i_volume );
765 audio_volume_t i_volume;
766 if ( aout_VolumeGet( p_this, &i_volume ) < 0 )
768 i_error = VLC_EGENERIC;
772 printf( "Volume is %d\n", i_volume );
773 i_error = VLC_SUCCESS;
780 static int VolumeMove( vlc_object_t *p_this, char const *psz_cmd,
781 vlc_value_t oldval, vlc_value_t newval, void *p_data )
783 audio_volume_t i_volume;
784 int i_nb_steps = atoi(newval.psz_string);
785 int i_error = VLC_SUCCESS;
787 if ( i_nb_steps <= 0 || i_nb_steps > (AOUT_VOLUME_MAX/AOUT_VOLUME_STEP) )
792 if ( !strcmp(psz_cmd, "volup") )
794 if ( aout_VolumeUp( p_this, i_nb_steps, &i_volume ) < 0 )
795 i_error = VLC_EGENERIC;
799 if ( aout_VolumeDown( p_this, i_nb_steps, &i_volume ) < 0 )
800 i_error = VLC_EGENERIC;
803 if ( !i_error ) printf( "Volume is %d\n", i_volume );
807 static int AudioConfig( vlc_object_t *p_this, char const *psz_cmd,
808 vlc_value_t oldval, vlc_value_t newval, void *p_data )
810 aout_instance_t * p_aout;
811 const char * psz_variable;
812 vlc_value_t val_name;
815 p_aout = vlc_object_find( p_this, VLC_OBJECT_AOUT, FIND_ANYWHERE );
816 if ( p_aout == NULL ) return VLC_ENOOBJ;
818 if ( !strcmp( psz_cmd, "adev" ) )
820 psz_variable = "audio-device";
824 psz_variable = "audio-channels";
827 /* Get the descriptive name of the variable */
828 var_Change( (vlc_object_t *)p_aout, psz_variable, VLC_VAR_GETTEXT,
830 if( !val_name.psz_string ) val_name.psz_string = strdup(psz_variable);
832 if ( !*newval.psz_string )
834 /* Retrieve all registered ***. */
835 vlc_value_t val, text;
838 if ( var_Get( (vlc_object_t *)p_aout, psz_variable, &val ) < 0 )
840 vlc_object_release( (vlc_object_t *)p_aout );
845 if ( var_Change( (vlc_object_t *)p_aout, psz_variable,
846 VLC_VAR_GETLIST, &val, &text ) < 0 )
848 vlc_object_release( (vlc_object_t *)p_aout );
852 printf( "+----[ %s ]\n", val_name.psz_string );
853 for ( i = 0; i < val.p_list->i_count; i++ )
855 if ( i_value == val.p_list->p_values[i].i_int )
856 printf( "| %i - %s *\n", val.p_list->p_values[i].i_int,
857 text.p_list->p_values[i].psz_string );
859 printf( "| %i - %s\n", val.p_list->p_values[i].i_int,
860 text.p_list->p_values[i].psz_string );
862 var_Change( (vlc_object_t *)p_aout, psz_variable, VLC_VAR_FREELIST,
864 printf( "+----[ end of %s ]\n", val_name.psz_string );
866 if( val_name.psz_string ) free( val_name.psz_string );
867 i_error = VLC_SUCCESS;
872 val.i_int = atoi( newval.psz_string );
874 i_error = var_Set( (vlc_object_t *)p_aout, psz_variable, val );
876 vlc_object_release( (vlc_object_t *)p_aout );