src/input/event.c

   1 /*****************************************************************************
   2  * event.c: Events
   3  *****************************************************************************
   4  * Copyright (C) 2008 Laurent Aimar
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar < fenrir _AT_ videolan _DOT_ org>
   8  *
   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.
  13  *
  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.
  18  *
  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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32 #include <vlc_input.h>
  33 #include "input_internal.h"
  34 #include "event.h"
  35 #include <assert.h>
  36
  37 /* */
  38 static void Trigger( input_thread_t *, int i_type );
  39 static void VarListAdd( input_thread_t *,
  40                         const char *psz_variable, int i_event,
  41                         int i_value, const char *psz_text );
  42 static void VarListDel( input_thread_t *,
  43                         const char *psz_variable, int i_event,
  44                         int i_value );
  45 static void VarListSelect( input_thread_t *,
  46                            const char *psz_variable, int i_event,
  47                            int i_value );
  48
  49 /*****************************************************************************
  50  * Event for input.c
  51  *****************************************************************************/
  52 void input_SendEventDead( input_thread_t *p_input )
  53 {
  54     p_input->b_dead = true;
  55
  56     Trigger( p_input, INPUT_EVENT_DEAD );
  57 }
  58 void input_SendEventAbort( input_thread_t *p_input )
  59 {
  60     Trigger( p_input, INPUT_EVENT_ABORT );
  61 }
  62
  63 void input_SendEventPosition( input_thread_t *p_input, double f_position, mtime_t i_time )
  64 {
  65     vlc_value_t val;
  66
  67     /* */
  68     val.f_float = f_position;
  69     var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
  70
  71     /* */
  72     val.i_time = i_time;
  73     var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
  74
  75     Trigger( p_input, INPUT_EVENT_POSITION );
  76 }
  77 void input_SendEventLength( input_thread_t *p_input, mtime_t i_length )
  78 {
  79     vlc_value_t val;
  80
  81     /* FIXME ugly + what about meta change event ? */
  82     if( var_GetTime( p_input, "length" ) == i_length )
  83         return;
  84
  85     input_item_SetDuration( p_input->p->p_item, i_length );
  86
  87     val.i_time = i_length;
  88     var_Change( p_input, "length", VLC_VAR_SETVALUE, &val, NULL );
  89
  90     Trigger( p_input, INPUT_EVENT_LENGTH );
  91 }
  92 void input_SendEventStatistics( input_thread_t *p_input )
  93 {
  94     Trigger( p_input, INPUT_EVENT_STATISTICS );
  95 }
  96 void input_SendEventRate( input_thread_t *p_input, int i_rate )
  97 {
  98     vlc_value_t val;
  99
 100     val.f_float = (float)INPUT_RATE_DEFAULT / (float)i_rate;
 101     var_Change( p_input, "rate", VLC_VAR_SETVALUE, &val, NULL );
 102
 103     Trigger( p_input, INPUT_EVENT_RATE );
 104 }
 105 void input_SendEventAudioDelay( input_thread_t *p_input, mtime_t i_delay )
 106 {
 107     vlc_value_t val;
 108
 109     val.i_time = i_delay;
 110     var_Change( p_input, "audio-delay", VLC_VAR_SETVALUE, &val, NULL );
 111
 112     Trigger( p_input, INPUT_EVENT_AUDIO_DELAY );
 113 }
 114
 115 void input_SendEventSubtitleDelay( input_thread_t *p_input, mtime_t i_delay )
 116 {
 117     vlc_value_t val;
 118
 119     val.i_time = i_delay;
 120     var_Change( p_input, "spu-delay", VLC_VAR_SETVALUE, &val, NULL );
 121
 122     Trigger( p_input, INPUT_EVENT_SUBTITLE_DELAY );
 123 }
 124
 125 /* TODO and file name ? */
 126 void input_SendEventRecord( input_thread_t *p_input, bool b_recording )
 127 {
 128     vlc_value_t val;
 129
 130     val.b_bool = b_recording;
 131     var_Change( p_input, "record", VLC_VAR_SETVALUE, &val, NULL );
 132
 133     Trigger( p_input, INPUT_EVENT_RECORD );
 134 }
 135
 136 void input_SendEventTitle( input_thread_t *p_input, int i_title )
 137 {
 138     vlc_value_t val;
 139
 140     val.i_int = i_title;
 141     var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );
 142
 143     input_ControlVarTitle( p_input, i_title );
 144
 145     Trigger( p_input, INPUT_EVENT_TITLE );
 146 }
 147
 148 void input_SendEventSeekpoint( input_thread_t *p_input, int i_title, int i_seekpoint )
 149 {
 150     vlc_value_t val;
 151
 152     /* "chapter" */
 153     val.i_int = i_seekpoint;
 154     var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &val, NULL );
 155
 156     /* "title %2i" */
 157     char psz_title[10];
 158     snprintf( psz_title, sizeof(psz_title), "title %2i", i_title );
 159     var_Change( p_input, psz_title, VLC_VAR_SETVALUE, &val, NULL );
 160
 161     /* */
 162     Trigger( p_input, INPUT_EVENT_CHAPTER );
 163 }
 164
 165 void input_SendEventSignal( input_thread_t *p_input, double f_quality, double f_strength )
 166 {
 167     vlc_value_t val;
 168
 169     val.f_float = f_quality;
 170     var_Change( p_input, "signal-quality", VLC_VAR_SETVALUE, &val, NULL );
 171
 172     val.f_float = f_strength;
 173     var_Change( p_input, "signal-strength", VLC_VAR_SETVALUE, &val, NULL );
 174
 175     Trigger( p_input, INPUT_EVENT_SIGNAL );
 176 }
 177
 178 void input_SendEventState( input_thread_t *p_input, int i_state )
 179 {
 180     vlc_value_t val;
 181
 182     val.i_int = i_state;
 183     var_Change( p_input, "state", VLC_VAR_SETVALUE, &val, NULL );
 184
 185     Trigger( p_input, INPUT_EVENT_STATE );
 186 }
 187
 188 void input_SendEventCache( input_thread_t *p_input, double f_level )
 189 {
 190     vlc_value_t val;
 191
 192     val.f_float = f_level;
 193     var_Change( p_input, "cache", VLC_VAR_SETVALUE, &val, NULL );
 194
 195     Trigger( p_input, INPUT_EVENT_CACHE );
 196 }
 197
 198 /* FIXME: review them because vlc_event_send might be
 199  * moved inside input_item* functions.
 200  */
 201 void input_SendEventMeta( input_thread_t *p_input )
 202 {
 203     Trigger( p_input, INPUT_EVENT_ITEM_META );
 204
 205     /* FIXME remove this ugliness ? */
 206     vlc_event_t event;
 207
 208     event.type = vlc_InputItemMetaChanged;
 209     event.u.input_item_meta_changed.meta_type = vlc_meta_ArtworkURL;
 210     vlc_event_send( &p_input->p->p_item->event_manager, &event );
 211 }
 212
 213 void input_SendEventMetaInfo( input_thread_t *p_input )
 214 {
 215     Trigger( p_input, INPUT_EVENT_ITEM_INFO );
 216
 217     /* FIXME remove this ugliness */
 218     vlc_event_t event;
 219
 220     event.type = vlc_InputItemInfoChanged;
 221     vlc_event_send( &p_input->p->p_item->event_manager, &event );
 222 }
 223
 224 void input_SendEventMetaName( input_thread_t *p_input, const char *psz_name )
 225 {
 226     Trigger( p_input, INPUT_EVENT_ITEM_NAME );
 227
 228     /* FIXME remove this ugliness */
 229     vlc_event_t event;
 230
 231     event.type = vlc_InputItemNameChanged;
 232     event.u.input_item_name_changed.new_name = psz_name;
 233     vlc_event_send( &p_input->p->p_item->event_manager, &event );
 234 }
 235
 236 void input_SendEventMetaEpg( input_thread_t *p_input )
 237 {
 238     Trigger( p_input, INPUT_EVENT_ITEM_EPG );
 239 }
 240 /*****************************************************************************
 241  * Event for es_out.c
 242  *****************************************************************************/
 243 void input_SendEventProgramAdd( input_thread_t *p_input,
 244                                 int i_program, const char *psz_text )
 245 {
 246     VarListAdd( p_input, "program", INPUT_EVENT_PROGRAM, i_program, psz_text );
 247 }
 248 void input_SendEventProgramDel( input_thread_t *p_input, int i_program )
 249 {
 250     VarListDel( p_input, "program", INPUT_EVENT_PROGRAM, i_program );
 251 }
 252 void input_SendEventProgramSelect( input_thread_t *p_input, int i_program )
 253 {
 254     VarListSelect( p_input, "program", INPUT_EVENT_PROGRAM, i_program );
 255 }
 256 void input_SendEventProgramScrambled( input_thread_t *p_input, int i_group, bool b_scrambled )
 257 {
 258     if( var_GetInteger( p_input, "program" ) != i_group )
 259         return;
 260
 261     var_SetBool( p_input, "program-scrambled", b_scrambled );
 262     Trigger( p_input, INPUT_EVENT_PROGRAM );
 263 }
 264
 265 static const char *GetEsVarName( int i_cat )
 266 {
 267     switch( i_cat )
 268     {
 269     case VIDEO_ES:
 270         return "video-es";
 271     case AUDIO_ES:
 272         return "audio-es";
 273     default:
 274         assert( i_cat == SPU_ES );
 275         return "spu-es";
 276     }
 277 }
 278 void input_SendEventEsAdd( input_thread_t *p_input, int i_cat, int i_id, const char *psz_text )
 279 {
 280     if( i_cat != UNKNOWN_ES )
 281         VarListAdd( p_input, GetEsVarName( i_cat ), INPUT_EVENT_ES,
 282                     i_id, psz_text );
 283 }
 284 void input_SendEventEsDel( input_thread_t *p_input, int i_cat, int i_id )
 285 {
 286     if( i_cat != UNKNOWN_ES )
 287         VarListDel( p_input, GetEsVarName( i_cat ), INPUT_EVENT_ES, i_id );
 288 }
 289 /* i_id == -1 will unselect */
 290 void input_SendEventEsSelect( input_thread_t *p_input, int i_cat, int i_id )
 291 {
 292     if( i_cat != UNKNOWN_ES )
 293         VarListSelect( p_input, GetEsVarName( i_cat ), INPUT_EVENT_ES, i_id );
 294 }
 295
 296 void input_SendEventTeletextAdd( input_thread_t *p_input,
 297                                  int i_teletext, const char *psz_text )
 298 {
 299     VarListAdd( p_input, "teletext-es", INPUT_EVENT_TELETEXT, i_teletext, psz_text );
 300 }
 301 void input_SendEventTeletextDel( input_thread_t *p_input, int i_teletext )
 302 {
 303     VarListDel( p_input, "teletext-es", INPUT_EVENT_TELETEXT, i_teletext );
 304 }
 305 void input_SendEventTeletextSelect( input_thread_t *p_input, int i_teletext )
 306 {
 307     VarListSelect( p_input, "teletext-es", INPUT_EVENT_TELETEXT, i_teletext );
 308 }
 309
 310 void input_SendEventVout( input_thread_t *p_input )
 311 {
 312     Trigger( p_input, INPUT_EVENT_VOUT );
 313 }
 314
 315 void input_SendEventAout( input_thread_t *p_input )
 316 {
 317     Trigger( p_input, INPUT_EVENT_AOUT );
 318 }
 319
 320 /*****************************************************************************
 321  * Event for control.c/input.c
 322  *****************************************************************************/
 323 void input_SendEventBookmark( input_thread_t *p_input )
 324 {
 325     Trigger( p_input, INPUT_EVENT_BOOKMARK );
 326 }
 327
 328 /*****************************************************************************
 329  *
 330  *****************************************************************************/
 331 static void Trigger( input_thread_t *p_input, int i_type )
 332 {
 333     var_SetInteger( p_input, "intf-event", i_type );
 334 }
 335 static void VarListAdd( input_thread_t *p_input,
 336                         const char *psz_variable, int i_event,
 337                         int i_value, const char *psz_text )
 338 {
 339     vlc_value_t val;
 340     vlc_value_t text;
 341
 342     val.i_int = i_value;
 343     text.psz_string = (char*)psz_text;
 344
 345     var_Change( p_input, psz_variable, VLC_VAR_ADDCHOICE,
 346                 &val, psz_text ? &text : NULL );
 347
 348     Trigger( p_input, i_event );
 349 }
 350 static void VarListDel( input_thread_t *p_input,
 351                         const char *psz_variable, int i_event,
 352                         int i_value )
 353 {
 354     vlc_value_t val;
 355
 356     if( i_value >= 0 )
 357     {
 358         val.i_int = i_value;
 359         var_Change( p_input, psz_variable, VLC_VAR_DELCHOICE, &val, NULL );
 360     }
 361     else
 362     {
 363         var_Change( p_input, psz_variable, VLC_VAR_CLEARCHOICES, &val, NULL );
 364     }
 365
 366     Trigger( p_input, i_event );
 367 }
 368 static void VarListSelect( input_thread_t *p_input,
 369                            const char *psz_variable, int i_event,
 370                            int i_value )
 371 {
 372     vlc_value_t val;
 373
 374     val.i_int = i_value;
 375     var_Change( p_input, psz_variable, VLC_VAR_SETVALUE, &val, NULL );
 376
 377     Trigger( p_input, i_event );
 378 }
 379
 380