1 /*****************************************************************************
2 * rpn.c : RPN evaluator for the HTTP Interface
3 *****************************************************************************
4 * Copyright (C) 2001-2006 the VideoLAN team
7 * Authors: Gildas Bazin <gbazin@netcourrier.com>
8 * Laurent Aimar <fenrir@via.ecp.fr>
9 * Christophe Massiot <massiot@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
29 #include "vlc_strings.h"
31 static vlc_object_t *GetVLCObject( intf_thread_t *p_intf,
32 const char *psz_object,
33 vlc_bool_t *pb_need_release )
35 intf_sys_t *p_sys = p_intf->p_sys;
36 int i_object_type = 0;
37 vlc_object_t *p_object = NULL;
38 *pb_need_release = VLC_FALSE;
40 if( !strcmp( psz_object, "VLC_OBJECT_LIBVLC" ) )
41 p_object = VLC_OBJECT(p_intf->p_libvlc);
42 else if( !strcmp( psz_object, "VLC_OBJECT_INTF" ) )
43 p_object = VLC_OBJECT(p_intf);
44 else if( !strcmp( psz_object, "VLC_OBJECT_PLAYLIST" ) )
45 p_object = VLC_OBJECT(p_sys->p_playlist);
46 else if( !strcmp( psz_object, "VLC_OBJECT_INPUT" ) )
47 p_object = VLC_OBJECT(p_sys->p_input);
48 else if( !strcmp( psz_object, "VLC_OBJECT_VOUT" ) )
49 i_object_type = VLC_OBJECT_VOUT;
50 else if( !strcmp( psz_object, "VLC_OBJECT_AOUT" ) )
51 i_object_type = VLC_OBJECT_AOUT;
52 else if( !strcmp( psz_object, "VLC_OBJECT_SOUT" ) )
53 i_object_type = VLC_OBJECT_SOUT;
55 msg_Warn( p_intf, "unknown object type (%s)", psz_object );
57 if( p_object == NULL && i_object_type )
59 *pb_need_release = VLC_TRUE;
60 p_object = vlc_object_find( p_intf, i_object_type, FIND_ANYWHERE );
66 void E_(SSInit)( rpn_stack_t *st )
71 void E_(SSClean)( rpn_stack_t *st )
73 while( st->i_stack > 0 )
75 free( st->stack[--st->i_stack] );
79 void E_(SSPush)( rpn_stack_t *st, const char *s )
81 if( st->i_stack < STACK_MAX )
83 st->stack[st->i_stack++] = strdup( s );
87 char *E_(SSPop)( rpn_stack_t *st )
89 if( st->i_stack <= 0 )
95 return st->stack[--st->i_stack];
99 int E_(SSPopN)( rpn_stack_t *st, mvar_t *vars )
107 name = E_(SSPop)( st );
108 i = strtol( name, &end, 0 );
111 value = E_(mvar_GetValue)( vars, name );
119 void E_(SSPushN)( rpn_stack_t *st, int i )
123 snprintf( v, sizeof (v), "%d", i );
127 void E_(EvaluateRPN)( intf_thread_t *p_intf, mvar_t *vars,
128 rpn_stack_t *st, char *exp )
130 intf_sys_t *p_sys = p_intf->p_sys;
132 while( exp != NULL && *exp != '\0' )
145 p = E_(FirstWord)( exp, exp );
146 E_(SSPush)( st, exp );
152 p = E_(FirstWord)( exp, exp );
156 exp += strlen( exp );
168 /* 1. Integer function */
169 if( !strcmp( s, "!" ) )
171 E_(SSPushN)( st, ~E_(SSPopN)( st, vars ) );
173 else if( !strcmp( s, "^" ) )
175 E_(SSPushN)( st, E_(SSPopN)( st, vars ) ^ E_(SSPopN)( st, vars ) );
177 else if( !strcmp( s, "&" ) )
179 E_(SSPushN)( st, E_(SSPopN)( st, vars ) & E_(SSPopN)( st, vars ) );
181 else if( !strcmp( s, "|" ) )
183 E_(SSPushN)( st, E_(SSPopN)( st, vars ) | E_(SSPopN)( st, vars ) );
185 else if( !strcmp( s, "+" ) )
187 E_(SSPushN)( st, E_(SSPopN)( st, vars ) + E_(SSPopN)( st, vars ) );
189 else if( !strcmp( s, "-" ) )
191 int j = E_(SSPopN)( st, vars );
192 int i = E_(SSPopN)( st, vars );
193 E_(SSPushN)( st, i - j );
195 else if( !strcmp( s, "*" ) )
197 E_(SSPushN)( st, E_(SSPopN)( st, vars ) * E_(SSPopN)( st, vars ) );
199 else if( !strcmp( s, "/" ) )
203 j = E_(SSPopN)( st, vars );
204 i = E_(SSPopN)( st, vars );
206 E_(SSPushN)( st, j != 0 ? i / j : 0 );
208 else if( !strcmp( s, "%" ) )
212 j = E_(SSPopN)( st, vars );
213 i = E_(SSPopN)( st, vars );
215 E_(SSPushN)( st, j != 0 ? i % j : 0 );
217 /* 2. integer tests */
218 else if( !strcmp( s, "=" ) )
220 E_(SSPushN)( st, E_(SSPopN)( st, vars ) == E_(SSPopN)( st, vars ) ? -1 : 0 );
222 else if( !strcmp( s, "!=" ) )
224 E_(SSPushN)( st, E_(SSPopN)( st, vars ) != E_(SSPopN)( st, vars ) ? -1 : 0 );
226 else if( !strcmp( s, "<" ) )
228 int j = E_(SSPopN)( st, vars );
229 int i = E_(SSPopN)( st, vars );
231 E_(SSPushN)( st, i < j ? -1 : 0 );
233 else if( !strcmp( s, ">" ) )
235 int j = E_(SSPopN)( st, vars );
236 int i = E_(SSPopN)( st, vars );
238 E_(SSPushN)( st, i > j ? -1 : 0 );
240 else if( !strcmp( s, "<=" ) )
242 int j = E_(SSPopN)( st, vars );
243 int i = E_(SSPopN)( st, vars );
245 E_(SSPushN)( st, i <= j ? -1 : 0 );
247 else if( !strcmp( s, ">=" ) )
249 int j = E_(SSPopN)( st, vars );
250 int i = E_(SSPopN)( st, vars );
252 E_(SSPushN)( st, i >= j ? -1 : 0 );
254 /* 3. string functions */
255 else if( !strcmp( s, "strcat" ) )
257 char *s2 = E_(SSPop)( st );
258 char *s1 = E_(SSPop)( st );
259 char *str = malloc( strlen( s1 ) + strlen( s2 ) + 1 );
264 E_(SSPush)( st, str );
269 else if( !strcmp( s, "strcmp" ) )
271 char *s2 = E_(SSPop)( st );
272 char *s1 = E_(SSPop)( st );
274 E_(SSPushN)( st, strcmp( s1, s2 ) );
278 else if( !strcmp( s, "strncmp" ) )
280 int n = E_(SSPopN)( st, vars );
281 char *s2 = E_(SSPop)( st );
282 char *s1 = E_(SSPop)( st );
284 E_(SSPushN)( st, strncmp( s1, s2 , n ) );
288 else if( !strcmp( s, "strsub" ) )
290 int n = E_(SSPopN)( st, vars );
291 int m = E_(SSPopN)( st, vars );
293 char *s = E_(SSPop)( st );
305 str = malloc( i_len + 1 );
307 memcpy( str, s + m - 1, i_len );
310 E_(SSPush)( st, str );
314 else if( !strcmp( s, "strlen" ) )
316 char *str = E_(SSPop)( st );
318 E_(SSPushN)( st, strlen( str ) );
321 else if( !strcmp( s, "str_replace" ) )
323 char *psz_to = E_(SSPop)( st );
324 char *psz_from = E_(SSPop)( st );
325 char *psz_in = E_(SSPop)( st );
326 char *psz_in_current = psz_in;
327 char *psz_out = malloc( strlen(psz_in) * strlen(psz_to) + 1 );
328 char *psz_out_current = psz_out;
330 while( (p = strstr( psz_in_current, psz_from )) != NULL )
332 memcpy( psz_out_current, psz_in_current, p - psz_in_current );
333 psz_out_current += p - psz_in_current;
334 strcpy( psz_out_current, psz_to );
335 psz_out_current += strlen(psz_to);
336 psz_in_current = p + strlen(psz_from);
338 strcpy( psz_out_current, psz_in_current );
339 psz_out_current += strlen(psz_in_current);
340 *psz_out_current = '\0';
342 E_(SSPush)( st, psz_out );
348 else if( !strcmp( s, "url_extract" ) )
350 char *url = E_(mvar_GetValue)( vars, "url_value" );
351 char *name = E_(SSPop)( st );
352 char *value = E_(ExtractURIString)( url, name );
357 tmp = E_(FromUTF8)( p_intf, value );
358 E_(SSPush)( st, tmp );
363 E_(SSPush)( st, "" );
367 else if( !strcmp( s, "url_encode" ) )
369 char *url = E_(SSPop)( st );
372 value = E_(ToUTF8)( p_intf, url );
375 value = vlc_UrlEncode( url );
377 E_(SSPush)( st, value );
380 else if( !strcmp( s, "addslashes" ) )
382 char *psz_src = E_(SSPop)( st );
386 p = psz_dest = malloc( strlen( str ) * 2 + 1 );
388 while( *str != '\0' )
390 if( *str == '"' || *str == '\'' || *str == '\\' )
399 E_(SSPush)( st, psz_dest );
403 else if( !strcmp( s, "stripslashes" ) )
405 char *psz_src = E_(SSPop)( st );
409 p = psz_dest = strdup( psz_src );
413 if( *str == '\\' && *(str + 1) )
421 E_(SSPush)( st, psz_dest );
425 else if( !strcmp( s, "htmlspecialchars" ) )
427 char *psz_src = E_(SSPop)( st );
430 psz_dest = convert_xml_special_chars( psz_src );
432 E_(SSPush)( st, psz_dest );
436 else if( !strcmp( s, "realpath" ) )
438 char *psz_src = E_(SSPop)( st );
439 char *psz_dir = E_(RealPath)( p_intf, psz_src );
441 E_(SSPush)( st, psz_dir );
445 /* 4. stack functions */
446 else if( !strcmp( s, "dup" ) )
448 char *str = E_(SSPop)( st );
449 E_(SSPush)( st, str );
450 E_(SSPush)( st, str );
453 else if( !strcmp( s, "drop" ) )
455 char *str = E_(SSPop)( st );
458 else if( !strcmp( s, "swap" ) )
460 char *s1 = E_(SSPop)( st );
461 char *s2 = E_(SSPop)( st );
463 E_(SSPush)( st, s1 );
464 E_(SSPush)( st, s2 );
468 else if( !strcmp( s, "flush" ) )
473 else if( !strcmp( s, "store" ) )
475 char *value = E_(SSPop)( st );
476 char *name = E_(SSPop)( st );
478 E_(mvar_PushNewVar)( vars, name, value );
482 else if( !strcmp( s, "value" ) )
484 char *name = E_(SSPop)( st );
485 char *value = E_(mvar_GetValue)( vars, name );
487 E_(SSPush)( st, value );
491 /* 5. player control */
492 else if( !strcmp( s, "vlc_play" ) )
494 int i_id = E_(SSPopN)( st, vars );
497 i_ret = playlist_Control( p_sys->p_playlist, PLAYLIST_VIEWPLAY, VLC_TRUE,
499 playlist_ItemGetById( p_sys->p_playlist,
501 msg_Dbg( p_intf, "requested playlist item: %i", i_id );
502 E_(SSPushN)( st, i_ret );
504 else if( !strcmp( s, "vlc_stop" ) )
506 playlist_Control( p_sys->p_playlist, VLC_TRUE, PLAYLIST_STOP );
507 msg_Dbg( p_intf, "requested playlist stop" );
509 else if( !strcmp( s, "vlc_pause" ) )
511 playlist_Control( p_sys->p_playlist, VLC_TRUE, PLAYLIST_PAUSE );
512 msg_Dbg( p_intf, "requested playlist pause" );
514 else if( !strcmp( s, "vlc_next" ) )
516 playlist_Control( p_sys->p_playlist, VLC_TRUE, PLAYLIST_SKIP, 1 );
517 msg_Dbg( p_intf, "requested playlist next" );
519 else if( !strcmp( s, "vlc_previous" ) )
521 playlist_Control( p_sys->p_playlist, VLC_TRUE, PLAYLIST_SKIP, -1 );
522 msg_Dbg( p_intf, "requested playlist previous" );
524 else if( !strcmp( s, "vlc_seek" ) )
526 char *psz_value = E_(SSPop)( st );
527 E_(HandleSeek)( p_intf, psz_value );
528 msg_Dbg( p_intf, "requested playlist seek: %s", psz_value );
531 else if( !strcmp( s, "vlc_var_type" )
532 || !strcmp( s, "vlc_config_type" ) )
534 vlc_object_t *p_object;
535 const char *psz_type = NULL;
538 if( !strcmp( s, "vlc_var_type" ) )
540 char *psz_object = E_(SSPop)( st );
541 char *psz_variable = E_(SSPop)( st );
542 vlc_bool_t b_need_release;
544 p_object = GetVLCObject( p_intf, psz_object, &b_need_release );
546 if( p_object != NULL )
547 i_type = var_Type( p_object, psz_variable );
548 free( psz_variable );
550 if( b_need_release && p_object != NULL )
551 vlc_object_release( p_object );
555 char *psz_variable = E_(SSPop)( st );
556 p_object = VLC_OBJECT(p_intf);
557 i_type = config_GetType( p_object, psz_variable );
558 free( psz_variable );
561 if( p_object != NULL )
563 switch( i_type & VLC_VAR_TYPE )
566 psz_type = "VLC_VAR_BOOL";
568 case VLC_VAR_INTEGER:
569 psz_type = "VLC_VAR_INTEGER";
572 psz_type = "VLC_VAR_HOTKEY";
575 psz_type = "VLC_VAR_STRING";
578 psz_type = "VLC_VAR_MODULE";
581 psz_type = "VLC_VAR_FILE";
583 case VLC_VAR_DIRECTORY:
584 psz_type = "VLC_VAR_DIRECTORY";
586 case VLC_VAR_VARIABLE:
587 psz_type = "VLC_VAR_VARIABLE";
590 psz_type = "VLC_VAR_FLOAT";
593 psz_type = "UNDEFINED";
597 psz_type = "INVALID";
599 E_(SSPush)( st, psz_type );
601 else if( !strcmp( s, "vlc_var_set" ) )
603 char *psz_object = E_(SSPop)( st );
604 char *psz_variable = E_(SSPop)( st );
605 vlc_bool_t b_need_release;
607 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
610 if( p_object != NULL )
612 vlc_bool_t b_error = VLC_FALSE;
613 char *psz_value = NULL;
617 i_type = var_Type( p_object, psz_variable );
619 switch( i_type & VLC_VAR_TYPE )
622 val.b_bool = E_(SSPopN)( st, vars );
623 msg_Dbg( p_intf, "requested %s var change: %s->%d",
624 psz_object, psz_variable, val.b_bool );
626 case VLC_VAR_INTEGER:
628 val.i_int = E_(SSPopN)( st, vars );
629 msg_Dbg( p_intf, "requested %s var change: %s->%d",
630 psz_object, psz_variable, val.i_int );
635 case VLC_VAR_DIRECTORY:
636 case VLC_VAR_VARIABLE:
637 val.psz_string = psz_value = E_(SSPop)( st );
638 msg_Dbg( p_intf, "requested %s var change: %s->%s",
639 psz_object, psz_variable, psz_value );
642 psz_value = E_(SSPop)( st );
643 val.f_float = atof( psz_value );
644 msg_Dbg( p_intf, "requested %s var change: %s->%f",
645 psz_object, psz_variable, val.f_float );
648 E_(SSPopN)( st, vars );
649 msg_Warn( p_intf, "invalid %s variable type %d (%s)",
650 psz_object, i_type & VLC_VAR_TYPE, psz_variable );
655 var_Set( p_object, psz_variable, val );
656 if( psz_value != NULL )
660 msg_Warn( p_intf, "vlc_var_set called without an object" );
661 free( psz_variable );
664 if( b_need_release && p_object != NULL )
665 vlc_object_release( p_object );
667 else if( !strcmp( s, "vlc_var_get" ) )
669 char *psz_object = E_(SSPop)( st );
670 char *psz_variable = E_(SSPop)( st );
671 vlc_bool_t b_need_release;
673 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
676 if( p_object != NULL )
681 i_type = var_Type( p_object, psz_variable );
682 var_Get( p_object, psz_variable, &val );
684 switch( i_type & VLC_VAR_TYPE )
687 E_(SSPushN)( st, val.b_bool );
689 case VLC_VAR_INTEGER:
691 E_(SSPushN)( st, val.i_int );
696 case VLC_VAR_DIRECTORY:
697 case VLC_VAR_VARIABLE:
698 E_(SSPush)( st, val.psz_string );
699 free( val.psz_string );
704 lldiv_t value = lldiv( val.f_float * 1000000, 1000000 );
705 snprintf( psz_value, sizeof(psz_value), "%lld.%06u",
706 value.quot, (unsigned int)value.rem );
707 E_(SSPush)( st, psz_value );
711 msg_Warn( p_intf, "invalid %s variable type %d (%s)",
712 psz_object, i_type & VLC_VAR_TYPE, psz_variable );
713 E_(SSPush)( st, "" );
718 msg_Warn( p_intf, "vlc_var_get called without an object" );
719 E_(SSPush)( st, "" );
721 free( psz_variable );
724 if( b_need_release && p_object != NULL )
725 vlc_object_release( p_object );
727 else if( !strcmp( s, "vlc_object_exists" ) )
729 char *psz_object = E_(SSPop)( st );
730 vlc_bool_t b_need_release;
732 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
734 if( b_need_release && p_object != NULL )
735 vlc_object_release( p_object );
737 if( p_object != NULL )
738 E_(SSPush)( st, "1" );
740 E_(SSPush)( st, "0" );
742 else if( !strcmp( s, "vlc_config_set" ) )
744 char *psz_variable = E_(SSPop)( st );
745 int i_type = config_GetType( p_intf, psz_variable );
747 switch( i_type & VLC_VAR_TYPE )
750 case VLC_VAR_INTEGER:
751 config_PutInt( p_intf, psz_variable, E_(SSPopN)( st, vars ) );
756 case VLC_VAR_DIRECTORY:
758 char *psz_string = E_(SSPop)( st );
759 config_PutPsz( p_intf, psz_variable, psz_string );
765 char *psz_string = E_(SSPop)( st );
766 config_PutFloat( p_intf, psz_variable, atof(psz_string) );
771 msg_Warn( p_intf, "vlc_config_set called on unknown var (%s)",
774 free( psz_variable );
776 else if( !strcmp( s, "vlc_config_get" ) )
778 char *psz_variable = E_(SSPop)( st );
779 int i_type = config_GetType( p_intf, psz_variable );
781 switch( i_type & VLC_VAR_TYPE )
784 case VLC_VAR_INTEGER:
785 E_(SSPushN)( st, config_GetInt( p_intf, psz_variable ) );
790 case VLC_VAR_DIRECTORY:
792 char *psz_string = config_GetPsz( p_intf, psz_variable );
793 E_(SSPush)( st, psz_string );
800 lldiv_t value = lldiv( config_GetFloat( p_intf, psz_variable )
801 * 1000000, 1000000 );
802 snprintf( psz_string, sizeof(psz_string), "%lld.%06u",
803 value.quot, (unsigned int)value.rem );
804 E_(SSPush)( st, psz_string );
808 msg_Warn( p_intf, "vlc_config_get called on unknown var (%s)",
811 free( psz_variable );
813 else if( !strcmp( s, "vlc_config_save" ) )
815 char *psz_module = E_(SSPop)( st );
823 i_result = config_SaveConfigFile( p_intf, psz_module );
825 if( psz_module != NULL )
827 E_(SSPushN)( st, i_result );
829 else if( !strcmp( s, "vlc_config_reset" ) )
831 config_ResetAll( p_intf );
833 /* 6. playlist functions */
834 else if( !strcmp( s, "playlist_add" ) )
836 char *psz_name = E_(SSPop)( st );
837 char *mrl = E_(SSPop)( st );
839 input_item_t *p_input;
842 tmp = E_(ToUTF8)( p_intf, psz_name );
845 tmp = E_(ToUTF8)( p_intf, mrl );
849 p_input = E_(MRLParse)( p_intf, mrl, psz_name );
851 if( !p_input || !p_input->psz_uri || !*p_input->psz_uri )
854 msg_Dbg( p_intf, "invalid requested mrl: %s", mrl );
858 i_id = playlist_AddInput( p_sys->p_playlist, p_input,
859 PLAYLIST_APPEND, PLAYLIST_END, VLC_TRUE,
861 msg_Dbg( p_intf, "requested mrl add: %s", mrl );
863 E_(SSPushN)( st, i_id );
868 else if( !strcmp( s, "playlist_empty" ) )
870 playlist_Clear( p_sys->p_playlist, VLC_FALSE );
871 msg_Dbg( p_intf, "requested playlist empty" );
873 else if( !strcmp( s, "playlist_delete" ) )
875 int i_id = E_(SSPopN)( st, vars );
876 playlist_DeleteFromInput( p_sys->p_playlist, i_id, VLC_FALSE );
877 msg_Dbg( p_intf, "requested playlist delete: %d", i_id );
879 else if( !strcmp( s, "playlist_move" ) )
881 /*int i_newpos =*/ E_(SSPopN)( st, vars );
882 /*int i_pos =*/ E_(SSPopN)( st, vars );
883 /* FIXME FIXME TODO TODO XXX XXX
884 do not release before fixing this
885 if ( i_pos < i_newpos )
887 playlist_Move( p_sys->p_playlist, i_pos, i_newpos + 1 );
891 playlist_Move( p_sys->p_playlist, i_pos, i_newpos );
893 msg_Dbg( p_intf, "requested to move playlist item %d to %d",
895 FIXME FIXME TODO TODO XXX XXX */
896 msg_Err( p_intf, "moving using indexes is obsolete. We need to update this function" );
898 else if( !strcmp( s, "playlist_sort" ) )
900 int i_order = E_(SSPopN)( st, vars );
901 int i_sort = E_(SSPopN)( st, vars );
902 i_order = i_order % 2;
904 /* FIXME FIXME TODO TODO XXX XXX
905 do not release before fixing this
906 playlist_RecursiveNodeSort( p_sys->p_playlist,
907 p_sys->p_playlist->p_general,
909 msg_Dbg( p_intf, "requested sort playlist by : %d in order : %d",
911 FIXME FIXME TODO TODO XXX XXX */
912 msg_Err( p_intf, "this needs to be fixed to use the new playlist framework" );
914 else if( !strcmp( s, "services_discovery_add" ) )
916 char *psz_sd = E_(SSPop)( st );
917 playlist_ServicesDiscoveryAdd( p_sys->p_playlist, psz_sd );
920 else if( !strcmp( s, "services_discovery_remove" ) )
922 char *psz_sd = E_(SSPop)( st );
923 playlist_ServicesDiscoveryRemove( p_sys->p_playlist, psz_sd );
926 else if( !strcmp( s, "services_discovery_is_loaded" ) )
928 char *psz_sd = E_(SSPop)( st );
930 playlist_IsServicesDiscoveryLoaded( p_sys->p_playlist, psz_sd ) );
933 else if( !strcmp( s, "vlc_volume_set" ) )
935 char *psz_vol = E_(SSPop)( st );
937 audio_volume_t i_volume;
938 aout_VolumeGet( p_intf, &i_volume );
939 if( psz_vol[0] == '+' )
941 i_value = atoi( psz_vol );
942 if( (i_volume + i_value) > AOUT_VOLUME_MAX )
943 aout_VolumeSet( p_intf, AOUT_VOLUME_MAX );
945 aout_VolumeSet( p_intf, i_volume + i_value );
947 else if( psz_vol[0] == '-' )
949 i_value = atoi( psz_vol );
950 if( (i_volume + i_value) < AOUT_VOLUME_MIN )
951 aout_VolumeSet( p_intf, AOUT_VOLUME_MIN );
953 aout_VolumeSet( p_intf, i_volume + i_value );
955 else if( strstr( psz_vol, "%") != NULL )
957 i_value = atoi( psz_vol );
958 if( i_value < 0 ) i_value = 0;
959 if( i_value > 400 ) i_value = 400;
960 aout_VolumeSet( p_intf, (i_value * (AOUT_VOLUME_MAX - AOUT_VOLUME_MIN))/400+AOUT_VOLUME_MIN);
964 i_value = atoi( psz_vol );
965 if( i_value > AOUT_VOLUME_MAX ) i_value = AOUT_VOLUME_MAX;
966 if( i_value < AOUT_VOLUME_MIN ) i_value = AOUT_VOLUME_MIN;
967 aout_VolumeSet( p_intf, i_value );
969 aout_VolumeGet( p_intf, &i_volume );
972 else if( !strcmp( s, "vlc_get_meta" ) )
974 char *psz_meta = E_(SSPop)( st );
975 char *psz_val = NULL;
976 if( p_sys->p_input && input_GetItem(p_sys->p_input) )
978 #define p_item input_GetItem( p_sys->p_input )
979 if( !strcmp( psz_meta, "ARTIST" ) )
981 psz_val = input_ItemGetInfo( p_item,
982 _(VLC_META_INFO_CAT), _(VLC_META_ARTIST) );
984 else if( !strcmp( psz_meta, "TITLE" ) )
986 psz_val = input_ItemGetInfo( p_item,
987 _(VLC_META_INFO_CAT), _(VLC_META_TITLE) );
988 if( psz_val == NULL )
989 psz_val = strdup( p_item->psz_name );
991 else if( !strcmp( psz_meta, "ALBUM" ) )
993 psz_val = input_ItemGetInfo( p_item,
994 _(VLC_META_INFO_CAT), _(VLC_META_COLLECTION) );
996 else if( !strcmp( psz_meta, "GENRE" ) )
998 psz_val = input_ItemGetInfo( p_item,
999 _(VLC_META_INFO_CAT), _(VLC_META_GENRE) );
1003 psz_val = input_ItemGetInfo( p_item,
1004 _(VLC_META_INFO_CAT), psz_meta );
1008 if( psz_val == NULL ) psz_val = strdup( "" );
1009 E_(SSPush)( st, psz_val );
1013 else if( !strcmp( s, "vlm_command" ) || !strcmp( s, "vlm_cmd" ) )
1016 char *psz_cmd = strdup( "" );
1018 vlm_message_t *vlm_answer;
1020 /* make sure that we have a vlm object */
1021 if( p_intf->p_sys->p_vlm == NULL )
1022 p_intf->p_sys->p_vlm = vlm_New( p_intf );
1025 /* vlm command uses the ';' delimiter
1026 * (else we can't know when to stop) */
1027 while( strcmp( psz_elt = E_(SSPop)( st ), "" )
1028 && strcmp( psz_elt, ";" ) )
1031 (char *)malloc( strlen( psz_cmd ) + strlen( psz_elt ) + 2 );
1032 sprintf( psz_buf, "%s %s", psz_cmd, psz_elt );
1038 msg_Dbg( p_intf, "executing vlm command: %s", psz_cmd );
1039 vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz_cmd, &vlm_answer );
1041 if( vlm_answer->psz_value == NULL )
1043 psz_error = strdup( "" );
1047 psz_error = malloc( strlen(vlm_answer->psz_name) +
1048 strlen(vlm_answer->psz_value) +
1049 strlen( " : ") + 1 );
1050 sprintf( psz_error , "%s : %s" , vlm_answer->psz_name,
1051 vlm_answer->psz_value );
1054 E_(mvar_AppendNewVar)( vars, "vlm_error", psz_error );
1055 /* this is kind of a duplicate but we need to have the message
1056 * without the command name for the "export" command */
1057 E_(mvar_AppendNewVar)( vars, "vlm_value", vlm_answer->psz_value );
1058 vlm_MessageDelete( vlm_answer );
1063 else if( !strcmp( s, "snapshot" ) )
1065 if( p_sys->p_input )
1067 vout_thread_t *p_vout;
1068 p_vout = vlc_object_find( p_sys->p_input,
1069 VLC_OBJECT_VOUT, FIND_CHILD );
1073 vout_Control( p_vout, VOUT_SNAPSHOT );
1074 vlc_object_release( p_vout );
1075 msg_Dbg( p_intf, "requested snapshot" );
1083 E_(SSPush)( st, s );