1 /* libmpd (high level libmpdclient library)
2 * Copyright (C) 2004-2009 Qball Cow <qball@sarine.nl>
3 * Project homepage: http://gmpcwiki.sarine.nl/
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #include "debug_printf.h"
30 #include "libmpd-internal.h"
32 int mpd_stats_update_real(MpdObj
*mi
, ChangedStatusType
* what_changed
);
34 int mpd_status_queue_update(MpdObj
*mi
)
37 if(!mpd_check_connected(mi
))
39 debug_printf(DEBUG_INFO
,"not connected\n");
40 return MPD_NOT_CONNECTED
;
42 if(mi
->status
!= NULL
)
44 mpd_freeStatus(mi
->status
);
51 int mpd_status_update(MpdObj
*mi
)
53 ChangedStatusType what_changed
=0;
54 if(!mpd_check_connected(mi
))
56 debug_printf(DEBUG_INFO
,"not connected\n");
57 return MPD_NOT_CONNECTED
;
61 debug_printf(DEBUG_ERROR
,"lock failed\n");
62 return MPD_LOCK_FAILED
;
67 if(mi
->status
!= NULL
)
69 mpd_freeStatus(mi
->status
);
72 mpd_sendStatusCommand(mi
->connection
);
73 mi
->status
= mpd_getStatus(mi
->connection
);
74 if(mi
->status
== NULL
)
76 debug_printf(DEBUG_ERROR
,"Failed to grab status from mpd\n");
78 return MPD_STATUS_FAILED
;
80 if(mpd_unlock_conn(mi
))
82 debug_printf(DEBUG_ERROR
, "Failed to unlock");
83 return MPD_LOCK_FAILED
;
88 /* first save the old status */
89 memcpy(&(mi
->OldState
), &(mi
->CurrentState
), sizeof(MpdServerState
));
92 if(mi
->CurrentState
.playlistid
!= mi
->status
->playlist
)
94 /* print debug message */
95 debug_printf(DEBUG_INFO
, "Playlist has changed!");
97 /* We can't trust the current song anymore. so we remove it */
98 /* tags might have been updated */
99 if(mi
->CurrentSong
!= NULL
)
101 mpd_freeSong(mi
->CurrentSong
);
102 mi
->CurrentSong
= NULL
;
105 /* set MPD_CST_PLAYLIST to be changed */
106 what_changed
|= MPD_CST_PLAYLIST
;
108 if(mi
->CurrentState
.playlistLength
== mi
->status
->playlistLength
)
110 // what_changed |= MPD_CST_SONGID;
113 mi
->CurrentState
.playlistid
= mi
->status
->playlist
;
116 if(mi
->CurrentState
.storedplaylistid
!= mi
->status
->storedplaylist
)
118 /* set MPD_CST_QUEUE to be changed */
119 what_changed
|= MPD_CST_STORED_PLAYLIST
;
123 mi
->CurrentState
.storedplaylistid
= mi
->status
->storedplaylist
;
128 if(mi
->CurrentState
.state
!= mi
->status
->state
)
130 what_changed
|= MPD_CST_STATE
;
131 mi
->CurrentState
.state
= mi
->status
->state
;
134 if(mi
->CurrentState
.songid
!= mi
->status
->songid
)
136 /* print debug message */
137 debug_printf(DEBUG_INFO
, "Songid has changed %i %i!", mi
->OldState
.songid
, mi
->status
->songid
);
139 what_changed
|= MPD_CST_SONGID
;
140 /* save new songid */
141 mi
->CurrentState
.songid
= mi
->status
->songid
;
144 if(mi
->CurrentState
.songpos
!= mi
->status
->song
)
146 /* print debug message */
147 debug_printf(DEBUG_INFO
, "Songpos has changed %i %i!", mi
->OldState
.songpos
, mi
->status
->song
);
149 what_changed
|= MPD_CST_SONGPOS
;
150 /* save new songid */
151 mi
->CurrentState
.songpos
= mi
->status
->song
;
154 if(mi
->CurrentState
.nextsongid
!= mi
->status
->nextsongid
|| mi
->CurrentState
.nextsongpos
!= mi
->status
->nextsong
)
156 what_changed
|= MPD_CST_NEXTSONG
;
157 /* save new songid */
158 mi
->CurrentState
.nextsongpos
= mi
->status
->nextsong
;
159 mi
->CurrentState
.nextsongid
= mi
->status
->nextsongid
;
162 if(mi
->CurrentState
.single
!= mi
->status
->single
)
164 what_changed
|= MPD_CST_SINGLE_MODE
;
165 mi
->CurrentState
.single
= mi
->status
->single
;
167 if(mi
->CurrentState
.consume
!= mi
->status
->consume
)
169 what_changed
|= MPD_CST_CONSUME_MODE
;
170 mi
->CurrentState
.consume
= mi
->status
->consume
;
172 if(mi
->CurrentState
.repeat
!= mi
->status
->repeat
)
174 what_changed
|= MPD_CST_REPEAT
;
175 mi
->CurrentState
.repeat
= mi
->status
->repeat
;
177 if(mi
->CurrentState
.random
!= mi
->status
->random
)
179 what_changed
|= MPD_CST_RANDOM
;
180 mi
->CurrentState
.random
= mi
->status
->random
;
182 if(mi
->CurrentState
.volume
!= mi
->status
->volume
)
184 what_changed
|= MPD_CST_VOLUME
;
185 mi
->CurrentState
.volume
= mi
->status
->volume
;
187 if(mi
->CurrentState
.xfade
!= mi
->status
->crossfade
)
189 what_changed
|= MPD_CST_CROSSFADE
;
190 mi
->CurrentState
.xfade
= mi
->status
->crossfade
;
192 if(mi
->CurrentState
.totaltime
!= mi
->status
->totalTime
)
194 what_changed
|= MPD_CST_TOTAL_TIME
;
195 mi
->CurrentState
.totaltime
= mi
->status
->totalTime
;
197 if(mi
->CurrentState
.elapsedtime
!= mi
->status
->elapsedTime
)
199 what_changed
|= MPD_CST_ELAPSED_TIME
;
200 mi
->CurrentState
.elapsedtime
= mi
->status
->elapsedTime
;
203 /* Check if bitrate changed, happens with vbr encodings. */
204 if(mi
->CurrentState
.bitrate
!= mi
->status
->bitRate
)
206 what_changed
|= MPD_CST_BITRATE
;
207 mi
->CurrentState
.bitrate
= mi
->status
->bitRate
;
210 /* The following 3 probly only happen on a song change, or is it possible in one song/stream? */
211 /* Check if the sample rate changed */
212 if(mi
->CurrentState
.samplerate
!= mi
->status
->sampleRate
)
214 what_changed
|= MPD_CST_AUDIOFORMAT
;
215 mi
->CurrentState
.samplerate
= mi
->status
->sampleRate
;
218 /* check if the sampling depth changed */
219 if(mi
->CurrentState
.bits
!= mi
->status
->bits
)
221 what_changed
|= MPD_CST_AUDIOFORMAT
;
222 mi
->CurrentState
.bits
= mi
->status
->bits
;
225 /* Check if the amount of audio channels changed */
226 if(mi
->CurrentState
.channels
!= mi
->status
->channels
)
228 what_changed
|= MPD_CST_AUDIOFORMAT
;
229 mi
->CurrentState
.channels
= mi
->status
->channels
;
232 if(mi
->status
->error
)
234 what_changed
|= MPD_CST_SERVER_ERROR
;
235 strcpy(mi
->CurrentState
.error
,mi
->status
->error
);
236 mpd_sendClearErrorCommand(mi
->connection
);
237 mpd_finishCommand(mi
->connection
);
241 mi
->CurrentState
.error
[0] ='\0';
244 /* Check if the updating changed,
245 * If it stopped, also update the stats for the new db-time.
247 if(mi
->CurrentState
.updatingDb
!= mi
->status
->updatingDb
)
249 what_changed
|= MPD_CST_UPDATING
;
250 if(!mi
->status
->updatingDb
)
252 mpd_stats_update_real(mi
, &what_changed
);
254 mi
->CurrentState
.updatingDb
= mi
->status
->updatingDb
;
258 mi
->CurrentState
.playlistLength
= mi
->status
->playlistLength
;
261 /* Detect changed outputs */
264 if(mi
->num_outputs
>0 )
266 mpd_OutputEntity
*output
= NULL
;
267 mpd_sendOutputsCommand(mi
->connection
);
268 while (( output
= mpd_getNextOutput(mi
->connection
)) != NULL
)
270 if(mi
->num_outputs
< output
->id
)
273 mi
->output_states
= realloc(mi
->output_states
,mi
->num_outputs
*sizeof(int));
274 mi
->output_states
[mi
->num_outputs
] = output
->enabled
;
275 what_changed
|= MPD_CST_OUTPUT
;
277 if(mi
->output_states
[output
->id
] != output
->enabled
)
279 mi
->output_states
[output
->id
] = output
->enabled
;
280 what_changed
|= MPD_CST_OUTPUT
;
282 mpd_freeOutputElement(output
);
284 mpd_finishCommand(mi
->connection
);
288 /* if no outputs, lets fetch them */
289 mpd_server_update_outputs(mi
);
290 if(mi
->num_outputs
== 0)
292 assert("No outputs defined? that cannot be\n");
294 what_changed
|= MPD_CST_OUTPUT
;
298 int update_stats
= 0;
299 mpd_sendGetEventsCommand(mi
->connection
);
300 while((name
= mpd_getNextEvent(mi
->connection
))){
301 if(strcmp(name
, "output") == 0){
302 what_changed
|= MPD_CST_OUTPUT
;
303 }else if (strcmp(name
, "database") == 0) {
304 if((what_changed
&MPD_CST_DATABASE
) == 0)
308 what_changed
|= MPD_CST_DATABASE
;
309 }else if (strcmp(name
, "stored_playlist")==0) {
310 what_changed
|= MPD_CST_STORED_PLAYLIST
;
311 }else if (strcmp(name
, "tag") == 0) {
312 what_changed
|= MPD_CST_PLAYLIST
;
313 }else if (strcmp (name
, "sticker") == 0) {
314 what_changed
|= MPD_CST_STICKER
;
318 mpd_finishCommand(mi
->connection
);
320 mpd_stats_update_real(mi
, &what_changed
);
325 /* Run the callback */
326 if((mi
->the_status_changed_callback
!= NULL
) && what_changed
)
328 mi
->the_status_changed_callback( mi
, what_changed
, mi
->the_status_changed_signal_userdata
);
331 /* We could have lost connection again during signal handling... so before we return check again if we are connected */
332 if(!mpd_check_connected(mi
))
334 return MPD_NOT_CONNECTED
;
339 /* returns TRUE when status is availible, when not availible and connected it tries to grab it */
340 int mpd_status_check(MpdObj
*mi
)
342 if(!mpd_check_connected(mi
))
344 debug_printf(DEBUG_INFO
,"not connected\n");
345 return MPD_NOT_CONNECTED
;
347 if(mi
->status
== NULL
)
350 if(mpd_status_update(mi
))
352 debug_printf(DEBUG_INFO
, "failed to update status\n");
353 return MPD_STATUS_FAILED
;
360 int mpd_stats_get_total_songs(MpdObj
*mi
)
364 debug_printf(DEBUG_ERROR
, "failed to check mi == NULL\n");
365 return MPD_ARGS_ERROR
;
367 if(mpd_stats_check(mi
) != MPD_OK
)
369 debug_printf(DEBUG_ERROR
,"Failed to get status\n");
370 return MPD_STATUS_FAILED
;
372 return mi
->stats
->numberOfSongs
;
375 int mpd_stats_get_total_artists(MpdObj
*mi
)
379 debug_printf(DEBUG_ERROR
, "failed to check mi == NULL\n");
380 return MPD_ARGS_ERROR
;
382 if(mpd_stats_check(mi
) != MPD_OK
)
384 debug_printf(DEBUG_ERROR
,"Failed to get status\n");
385 return MPD_STATS_FAILED
;
387 return mi
->stats
->numberOfArtists
;
390 int mpd_stats_get_total_albums(MpdObj
*mi
)
394 debug_printf(DEBUG_ERROR
,"failed to check mi == NULL\n");
395 return MPD_ARGS_ERROR
;
397 if(mpd_stats_check(mi
) != MPD_OK
)
399 debug_printf(DEBUG_WARNING
,"Failed to get status\n");
400 return MPD_STATS_FAILED
;
402 return mi
->stats
->numberOfAlbums
;
406 int mpd_stats_get_uptime(MpdObj
*mi
)
410 debug_printf(DEBUG_ERROR
,"failed to check mi == NULL\n");
411 return MPD_ARGS_ERROR
;
413 if(mpd_stats_check(mi
) != MPD_OK
)
415 debug_printf(DEBUG_WARNING
,"Failed to get status\n");
416 return MPD_STATS_FAILED
;
418 return mi
->stats
->uptime
;
421 int mpd_stats_get_playtime(MpdObj
*mi
)
425 debug_printf(DEBUG_ERROR
, "failed to check mi == NULL\n");
426 return MPD_ARGS_ERROR
;
428 if(mpd_stats_check(mi
) != MPD_OK
)
430 debug_printf(DEBUG_WARNING
,"Failed to get status\n");
431 return MPD_STATS_FAILED
;
433 return mi
->stats
->playTime
;
436 int mpd_stats_get_db_playtime(MpdObj
*mi
)
440 debug_printf(DEBUG_ERROR
, "failed to check mi == NULL\n");
441 return MPD_ARGS_ERROR
;
443 if(mpd_stats_check(mi
) != MPD_OK
)
445 debug_printf(DEBUG_WARNING
,"Failed to get stats\n");
446 return MPD_STATS_FAILED
;
448 return mi
->stats
->dbPlayTime
;
467 int mpd_status_get_volume(MpdObj
*mi
)
471 debug_printf(DEBUG_ERROR
, "failed to check mi == NULL\n");
472 return MPD_ARGS_ERROR
;
474 if(mpd_status_check(mi
) != MPD_OK
)
476 debug_printf(DEBUG_WARNING
, "Failed to get status\n");
477 return MPD_STATUS_FAILED
;
479 return mi
->status
->volume
;
483 int mpd_status_get_bitrate(MpdObj
*mi
)
487 debug_printf(DEBUG_ERROR
,"failed to check mi == NULL\n");
488 return MPD_ARGS_ERROR
;
490 if(mpd_status_check(mi
) != MPD_OK
)
492 debug_printf(DEBUG_WARNING
, "Failed to get status\n");
493 return MPD_STATUS_FAILED
;
495 return mi
->CurrentState
.bitrate
;
498 int mpd_status_get_channels(MpdObj
*mi
)
502 debug_printf(DEBUG_ERROR
,"failed to check mi == NULL\n");
503 return MPD_ARGS_ERROR
;
505 if(mpd_status_check(mi
) != MPD_OK
)
507 debug_printf(DEBUG_WARNING
, "Failed to get status\n");
508 return MPD_STATUS_FAILED
;
510 return mi
->CurrentState
.channels
;
513 unsigned int mpd_status_get_samplerate(MpdObj
*mi
)
517 debug_printf(DEBUG_ERROR
,"failed to check mi == NULL\n");
518 return MPD_ARGS_ERROR
;
520 if(mpd_status_check(mi
) != MPD_OK
)
522 debug_printf(DEBUG_WARNING
, "Failed to get status\n");
523 return MPD_STATUS_FAILED
;
525 return mi
->CurrentState
.samplerate
;
528 int mpd_status_get_bits(MpdObj
*mi
)
532 debug_printf(DEBUG_WARNING
,"failed to check mi == NULL\n");
533 return MPD_ARGS_ERROR
;
535 if(mpd_status_check(mi
) != MPD_OK
)
537 debug_printf(DEBUG_WARNING
, "Failed to get status\n");
538 return MPD_STATUS_FAILED
;
540 return mi
->CurrentState
.bits
;
543 char * mpd_status_get_mpd_error(MpdObj
*mi
)
545 if(mi
->CurrentState
.error
[0] != '\0')
547 return strdup(mi
->CurrentState
.error
);
552 int mpd_status_db_is_updating(MpdObj
*mi
)
554 if(!mpd_check_connected(mi
))
556 debug_printf(DEBUG_WARNING
, "mpd_check_connected failed.\n");
559 return mi
->CurrentState
.updatingDb
;
563 int mpd_status_get_total_song_time(MpdObj
*mi
)
565 if(!mpd_check_connected(mi
))
567 debug_printf(DEBUG_ERROR
, "failed to check mi == NULL\n");
568 return MPD_ARGS_ERROR
;
570 if(mpd_status_check(mi
) != MPD_OK
)
572 debug_printf(DEBUG_WARNING
, "Failed to get status\n");
573 return MPD_STATUS_FAILED
;
575 return mi
->status
->totalTime
;
579 int mpd_status_get_elapsed_song_time(MpdObj
*mi
)
581 if(!mpd_check_connected(mi
))
583 debug_printf(DEBUG_WARNING
,"failed to check mi == NULL\n");
584 return MPD_NOT_CONNECTED
;
586 if(mpd_status_check(mi
) != MPD_OK
)
588 debug_printf(DEBUG_WARNING
,"Failed to get status\n");
589 return MPD_STATUS_FAILED
;
591 return mi
->status
->elapsedTime
;
594 int mpd_status_set_volume(MpdObj
*mi
,int volume
)
596 if(!mpd_check_connected(mi
))
598 debug_printf(DEBUG_WARNING
,"not connected\n");
599 return MPD_NOT_CONNECTED
;
601 /* making sure volume is between 0 and 100 */
602 volume
= (volume
< 0)? 0:(volume
>100)? 100:volume
;
604 if(mpd_lock_conn(mi
))
606 debug_printf(DEBUG_ERROR
,"lock failed\n");
607 return MPD_LOCK_FAILED
;
610 /* send the command */
611 mpd_sendSetvolCommand(mi
->connection
, volume
);
612 mpd_finishCommand(mi
->connection
);
613 /* check for errors */
616 /* update status, because we changed it */
617 mpd_status_queue_update(mi
);
618 /* return current volume */
619 return mpd_status_get_volume(mi
);
622 int mpd_status_get_crossfade(MpdObj
*mi
)
624 if(!mpd_check_connected(mi
))
626 debug_printf(DEBUG_WARNING
,"not connected\n");
627 return MPD_NOT_CONNECTED
;
629 if(mpd_status_check(mi
) != MPD_OK
)
631 debug_printf(DEBUG_WARNING
,"Failed grabbing status\n");
632 return MPD_NOT_CONNECTED
;
634 return mi
->status
->crossfade
;
637 int mpd_status_set_crossfade(MpdObj
*mi
,int crossfade_time
)
639 if(!mpd_check_connected(mi
))
641 debug_printf(DEBUG_WARNING
,"not connected\n");
642 return MPD_NOT_CONNECTED
;
644 if(mpd_lock_conn(mi
))
646 debug_printf(DEBUG_ERROR
,"lock failed\n");
647 return MPD_LOCK_FAILED
;
649 mpd_sendCrossfadeCommand(mi
->connection
, crossfade_time
);
650 mpd_finishCommand(mi
->connection
);
653 mpd_status_queue_update(mi
);
658 float mpd_status_set_volume_as_float(MpdObj
*mi
, float fvol
)
660 int volume
= mpd_status_set_volume(mi
, (int)(fvol
*100.0));
663 return (float)volume
/100.0;
665 return (float)volume
;
668 int mpd_stats_update(MpdObj
*mi
)
670 return mpd_stats_update_real(mi
, NULL
);
673 int mpd_stats_update_real(MpdObj
*mi
, ChangedStatusType
* what_changed
)
675 ChangedStatusType what_changed_here
= 0;
676 if ( what_changed
== NULL
) {
677 /* we need to save the current state, because we're called standalone */
678 memcpy(&(mi
->OldState
), &(mi
->CurrentState
), sizeof(MpdServerState
));
681 if(!mpd_check_connected(mi
))
683 debug_printf(DEBUG_INFO
,"not connected\n");
684 return MPD_NOT_CONNECTED
;
686 if(mpd_lock_conn(mi
))
688 debug_printf(DEBUG_ERROR
,"lock failed\n");
689 return MPD_LOCK_FAILED
;
692 if(mi
->stats
!= NULL
)
694 mpd_freeStats(mi
->stats
);
696 mpd_sendStatsCommand(mi
->connection
);
697 mi
->stats
= mpd_getStats(mi
->connection
);
698 if(mi
->stats
== NULL
)
700 debug_printf(DEBUG_ERROR
,"Failed to grab stats from mpd\n");
702 else if(mi
->stats
->dbUpdateTime
!= mi
->OldState
.dbUpdateTime
)
704 debug_printf(DEBUG_INFO
, "database updated\n");
705 what_changed_here
|= MPD_CST_DATABASE
;
707 mi
->CurrentState
.dbUpdateTime
= mi
->stats
->dbUpdateTime
;
711 (*what_changed
) |= what_changed_here
;
713 if((mi
->the_status_changed_callback
!= NULL
) & what_changed_here
)
715 mi
->the_status_changed_callback(mi
, what_changed_here
, mi
->the_status_changed_signal_userdata
);
719 if(mpd_unlock_conn(mi
))
721 debug_printf(DEBUG_ERROR
, "unlock failed");
722 return MPD_LOCK_FAILED
;
728 int mpd_stats_check(MpdObj
*mi
)
730 if(!mpd_check_connected(mi
))
732 debug_printf(DEBUG_WARNING
,"not connected\n");
733 return MPD_NOT_CONNECTED
;
735 if(mi
->stats
== NULL
)
738 if(mpd_stats_update(mi
))
740 debug_printf(DEBUG_ERROR
,"failed to update status\n");
741 return MPD_STATUS_FAILED
;