2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/timeval.h>
34 #include <pulse/util.h>
36 #include <pulsecore/source-output.h>
37 #include <pulsecore/namereg.h>
38 #include <pulsecore/core-subscribe.h>
39 #include <pulsecore/log.h>
40 #include <pulsecore/sample-util.h>
44 #define ABSOLUTE_MIN_LATENCY (500)
45 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
47 static PA_DEFINE_CHECK_TYPE(pa_source, pa_msgobject);
49 static void source_free(pa_object *o);
51 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
54 memset(data, 0, sizeof(*data));
55 data->proplist = pa_proplist_new();
60 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
64 data->name = pa_xstrdup(name);
67 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
70 if ((data->sample_spec_is_set = !!spec))
71 data->sample_spec = *spec;
74 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
77 if ((data->channel_map_is_set = !!map))
78 data->channel_map = *map;
81 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
84 if ((data->volume_is_set = !!volume))
85 data->volume = *volume;
88 void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
91 data->muted_is_set = TRUE;
95 void pa_source_new_data_done(pa_source_new_data *data) {
99 pa_proplist_free(data->proplist);
102 /* Called from main context */
103 static void reset_callbacks(pa_source *s) {
107 s->get_volume = NULL;
108 s->set_volume = NULL;
111 s->update_requested_latency = NULL;
114 /* Called from main context */
115 pa_source* pa_source_new(
117 pa_source_new_data *data,
118 pa_source_flags_t flags) {
122 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
127 pa_assert(data->name);
129 s = pa_msgobject_new(pa_source);
131 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
136 pa_source_new_data_set_name(data, name);
138 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
140 pa_namereg_unregister(core, name);
144 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
145 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
147 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
149 if (!data->channel_map_is_set)
150 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
152 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
153 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
155 if (!data->volume_is_set)
156 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
158 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
159 pa_return_null_if_fail(data->volume.channels == data->sample_spec.channels);
161 if (!data->muted_is_set)
165 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
167 pa_device_init_description(data->proplist);
168 pa_device_init_icon(data->proplist, FALSE);
170 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
172 pa_namereg_unregister(core, name);
176 s->parent.parent.free = source_free;
177 s->parent.process_msg = pa_source_process_msg;
180 s->state = PA_SOURCE_INIT;
182 s->name = pa_xstrdup(name);
183 s->proplist = pa_proplist_copy(data->proplist);
184 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
185 s->module = data->module;
186 s->card = data->card;
188 s->sample_spec = data->sample_spec;
189 s->channel_map = data->channel_map;
191 s->outputs = pa_idxset_new(NULL, NULL);
193 s->monitor_of = NULL;
195 s->virtual_volume = data->volume;
196 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
197 s->base_volume = PA_VOLUME_NORM;
198 s->n_volume_steps = PA_VOLUME_NORM+1;
199 s->muted = data->muted;
200 s->refresh_volume = s->refresh_muted = FALSE;
208 pa_silence_memchunk_get(
209 &core->silence_cache,
215 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
216 s->thread_info.soft_volume = s->soft_volume;
217 s->thread_info.soft_muted = s->muted;
218 s->thread_info.state = s->state;
219 s->thread_info.max_rewind = 0;
220 s->thread_info.requested_latency_valid = FALSE;
221 s->thread_info.requested_latency = 0;
222 s->thread_info.min_latency = ABSOLUTE_MIN_LATENCY;
223 s->thread_info.max_latency = ABSOLUTE_MAX_LATENCY;
225 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
228 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
230 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
231 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
234 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
235 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
242 /* Called from main context */
243 static int source_set_state(pa_source *s, pa_source_state_t state) {
245 pa_bool_t suspend_change;
246 pa_source_state_t original_state;
250 if (s->state == state)
253 original_state = s->state;
256 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
257 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
260 if ((ret = s->set_state(s, state)) < 0)
264 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
267 s->set_state(s, original_state);
274 if (state != PA_SOURCE_UNLINKED) { /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
275 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
276 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
279 if (suspend_change) {
283 /* We're suspending or resuming, tell everyone about it */
285 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
286 if (s->state == PA_SOURCE_SUSPENDED &&
287 (o->flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND))
288 pa_source_output_kill(o);
290 o->suspend(o, state == PA_SOURCE_SUSPENDED);
297 /* Called from main context */
298 void pa_source_put(pa_source *s) {
299 pa_source_assert_ref(s);
301 pa_assert(s->state == PA_SOURCE_INIT);
303 /* The following fields must be initialized properly when calling _put() */
304 pa_assert(s->asyncmsgq);
305 pa_assert(s->rtpoll);
306 pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
307 s->thread_info.min_latency <= s->thread_info.max_latency);
309 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) {
310 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
312 s->thread_info.soft_volume = s->soft_volume;
313 s->thread_info.soft_muted = s->muted;
316 if (s->flags & PA_SOURCE_DECIBEL_VOLUME)
317 s->n_volume_steps = PA_VOLUME_NORM+1;
319 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
321 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
322 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
325 /* Called from main context */
326 void pa_source_unlink(pa_source *s) {
328 pa_source_output *o, *j = NULL;
332 /* See pa_sink_unlink() for a couple of comments how this function
335 linked = PA_SOURCE_IS_LINKED(s->state);
338 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
340 if (s->state != PA_SOURCE_UNLINKED)
341 pa_namereg_unregister(s->core, s->name);
342 pa_idxset_remove_by_data(s->core->sources, s, NULL);
345 pa_idxset_remove_by_data(s->card->sources, s, NULL);
347 while ((o = pa_idxset_first(s->outputs, NULL))) {
349 pa_source_output_kill(o);
354 source_set_state(s, PA_SOURCE_UNLINKED);
356 s->state = PA_SOURCE_UNLINKED;
361 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
362 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
366 /* Called from main context */
367 static void source_free(pa_object *o) {
368 pa_source_output *so;
369 pa_source *s = PA_SOURCE(o);
372 pa_assert(pa_source_refcnt(s) == 0);
374 if (PA_SOURCE_IS_LINKED(s->state))
377 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
379 pa_idxset_free(s->outputs, NULL, NULL);
381 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
382 pa_source_output_unref(so);
384 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
386 if (s->silence.memblock)
387 pa_memblock_unref(s->silence.memblock);
393 pa_proplist_free(s->proplist);
398 /* Called from main context */
399 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
400 pa_source_assert_ref(s);
405 /* Called from main context */
406 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
407 pa_source_assert_ref(s);
412 /* Called from main context */
413 int pa_source_update_status(pa_source*s) {
414 pa_source_assert_ref(s);
415 pa_assert(PA_SOURCE_IS_LINKED(s->state));
417 if (s->state == PA_SOURCE_SUSPENDED)
420 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
423 /* Called from main context */
424 int pa_source_suspend(pa_source *s, pa_bool_t suspend) {
425 pa_source_assert_ref(s);
426 pa_assert(PA_SOURCE_IS_LINKED(s->state));
429 return -PA_ERR_NOTSUPPORTED;
432 return source_set_state(s, PA_SOURCE_SUSPENDED);
434 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
437 /* Called from main context */
438 int pa_source_sync_suspend(pa_source *s) {
439 pa_sink_state_t state;
441 pa_source_assert_ref(s);
442 pa_assert(PA_SOURCE_IS_LINKED(s->state));
443 pa_assert(s->monitor_of);
445 state = pa_sink_get_state(s->monitor_of);
447 if (state == PA_SINK_SUSPENDED)
448 return source_set_state(s, PA_SOURCE_SUSPENDED);
450 pa_assert(PA_SINK_IS_OPENED(state));
452 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
455 /* Called from main context */
456 pa_queue *pa_source_move_all_start(pa_source *s) {
458 pa_source_output *o, *n;
461 pa_source_assert_ref(s);
462 pa_assert(PA_SOURCE_IS_LINKED(s->state));
466 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
467 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
469 if (pa_source_output_start_move(o) >= 0)
470 pa_queue_push(q, pa_source_output_ref(o));
476 /* Called from main context */
477 void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save) {
480 pa_source_assert_ref(s);
481 pa_assert(PA_SOURCE_IS_LINKED(s->state));
484 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
485 if (pa_source_output_finish_move(o, s, save) < 0)
486 pa_source_output_kill(o);
488 pa_source_output_unref(o);
491 pa_queue_free(q, NULL, NULL);
494 /* Called from main context */
495 void pa_source_move_all_fail(pa_queue *q) {
499 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
500 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_OK) {
501 pa_source_output_kill(o);
502 pa_source_output_unref(o);
506 pa_queue_free(q, NULL, NULL);
509 /* Called from IO thread context */
510 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
514 pa_source_assert_ref(s);
515 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
517 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
523 pa_log_debug("Processing rewind...");
525 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
526 pa_source_output_assert_ref(o);
527 pa_source_output_process_rewind(o, nbytes);
531 /* Called from IO thread context */
532 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
536 pa_source_assert_ref(s);
537 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
540 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
543 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
544 pa_memchunk vchunk = *chunk;
546 pa_memblock_ref(vchunk.memblock);
547 pa_memchunk_make_writable(&vchunk, 0);
549 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
550 pa_silence_memchunk(&vchunk, &s->sample_spec);
552 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
554 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
555 pa_source_output_assert_ref(o);
557 if (!o->thread_info.direct_on_input)
558 pa_source_output_push(o, &vchunk);
561 pa_memblock_unref(vchunk.memblock);
564 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
565 pa_source_output_assert_ref(o);
567 if (!o->thread_info.direct_on_input)
568 pa_source_output_push(o, chunk);
573 /* Called from IO thread context */
574 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
575 pa_source_assert_ref(s);
576 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
577 pa_source_output_assert_ref(o);
578 pa_assert(o->thread_info.direct_on_input);
581 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
584 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
585 pa_memchunk vchunk = *chunk;
587 pa_memblock_ref(vchunk.memblock);
588 pa_memchunk_make_writable(&vchunk, 0);
590 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
591 pa_silence_memchunk(&vchunk, &s->sample_spec);
593 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
595 pa_source_output_push(o, &vchunk);
597 pa_memblock_unref(vchunk.memblock);
599 pa_source_output_push(o, chunk);
602 /* Called from main thread */
603 pa_usec_t pa_source_get_latency(pa_source *s) {
606 pa_source_assert_ref(s);
607 pa_assert(PA_SOURCE_IS_LINKED(s->state));
609 if (s->state == PA_SOURCE_SUSPENDED)
612 if (!(s->flags & PA_SOURCE_LATENCY))
615 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
620 /* Called from main thread */
621 void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
622 pa_cvolume old_virtual_volume;
623 pa_bool_t virtual_volume_changed;
625 pa_source_assert_ref(s);
626 pa_assert(PA_SOURCE_IS_LINKED(s->state));
628 pa_assert(pa_cvolume_valid(volume));
629 pa_assert(pa_cvolume_compatible(volume, &s->sample_spec));
631 old_virtual_volume = s->virtual_volume;
632 s->virtual_volume = *volume;
633 virtual_volume_changed = !pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume);
636 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
639 s->soft_volume = s->virtual_volume;
641 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
643 if (virtual_volume_changed)
644 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
647 /* Called from main thread. Only to be called by source implementor */
648 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
649 pa_source_assert_ref(s);
652 if (PA_SOURCE_IS_LINKED(s->state))
653 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
655 s->thread_info.soft_volume = *volume;
658 /* Called from main thread */
659 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
660 pa_source_assert_ref(s);
661 pa_assert(PA_SOURCE_IS_LINKED(s->state));
663 if (s->refresh_volume || force_refresh) {
664 pa_cvolume old_virtual_volume = s->virtual_volume;
669 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
671 if (!pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume))
672 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
675 return &s->virtual_volume;
678 /* Called from main thread */
679 void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_volume) {
680 pa_source_assert_ref(s);
682 /* The source implementor may call this if the volume changed to make sure everyone is notified */
684 if (pa_cvolume_equal(&s->virtual_volume, new_volume))
687 s->virtual_volume = *new_volume;
688 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
691 /* Called from main thread */
692 void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
695 pa_source_assert_ref(s);
696 pa_assert(PA_SOURCE_IS_LINKED(s->state));
698 old_muted = s->muted;
704 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
706 if (old_muted != s->muted)
707 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
710 /* Called from main thread */
711 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
712 pa_source_assert_ref(s);
713 pa_assert(PA_SOURCE_IS_LINKED(s->state));
715 if (s->refresh_muted || force_refresh) {
716 pa_bool_t old_muted = s->muted;
721 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
723 if (old_muted != s->muted)
724 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
730 /* Called from main thread */
731 void pa_source_mute_changed(pa_source *s, pa_bool_t new_muted) {
732 pa_source_assert_ref(s);
734 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
736 if (s->muted == new_muted)
739 s->muted = new_muted;
740 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
743 /* Called from main thread */
744 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
745 pa_source_assert_ref(s);
748 pa_proplist_update(s->proplist, mode, p);
750 if (PA_SOURCE_IS_LINKED(s->state)) {
751 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
752 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
758 /* Called from main thread */
759 void pa_source_set_description(pa_source *s, const char *description) {
761 pa_source_assert_ref(s);
763 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
766 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
768 if (old && description && !strcmp(old, description))
772 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
774 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
776 if (PA_SOURCE_IS_LINKED(s->state)) {
777 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
778 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
782 /* Called from main thread */
783 unsigned pa_source_linked_by(pa_source *s) {
784 pa_source_assert_ref(s);
785 pa_assert(PA_SOURCE_IS_LINKED(s->state));
787 return pa_idxset_size(s->outputs);
790 /* Called from main thread */
791 unsigned pa_source_used_by(pa_source *s) {
794 pa_source_assert_ref(s);
795 pa_assert(PA_SOURCE_IS_LINKED(s->state));
797 ret = pa_idxset_size(s->outputs);
798 pa_assert(ret >= s->n_corked);
800 return ret - s->n_corked;
803 /* Called from main thread */
804 unsigned pa_source_check_suspend(pa_source *s) {
809 pa_source_assert_ref(s);
811 if (!PA_SOURCE_IS_LINKED(s->state))
816 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx))) {
817 pa_source_output_state_t st;
819 st = pa_source_output_get_state(o);
820 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(st));
822 if (st == PA_SOURCE_OUTPUT_CORKED)
825 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
834 /* Called from IO thread, except when it is not */
835 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
836 pa_source *s = PA_SOURCE(object);
837 pa_source_assert_ref(s);
839 switch ((pa_source_message_t) code) {
841 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
842 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
844 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
846 if (o->direct_on_input) {
847 o->thread_info.direct_on_input = o->direct_on_input;
848 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
851 pa_assert(!o->thread_info.attached);
852 o->thread_info.attached = TRUE;
857 pa_source_output_set_state_within_thread(o, o->state);
859 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
860 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
862 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
864 /* We don't just invalidate the requested latency here,
865 * because if we are in a move we might need to fix up the
866 * requested latency. */
867 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
872 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
873 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
875 pa_source_output_set_state_within_thread(o, o->state);
880 pa_assert(o->thread_info.attached);
881 o->thread_info.attached = FALSE;
883 if (o->thread_info.direct_on_input) {
884 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
885 o->thread_info.direct_on_input = NULL;
888 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
889 pa_source_output_unref(o);
891 pa_source_invalidate_requested_latency(s);
896 case PA_SOURCE_MESSAGE_SET_VOLUME:
897 s->thread_info.soft_volume = s->soft_volume;
900 case PA_SOURCE_MESSAGE_GET_VOLUME:
903 case PA_SOURCE_MESSAGE_SET_MUTE:
904 s->thread_info.soft_muted = s->muted;
907 case PA_SOURCE_MESSAGE_GET_MUTE:
910 case PA_SOURCE_MESSAGE_SET_STATE:
911 s->thread_info.state = PA_PTR_TO_UINT(userdata);
914 case PA_SOURCE_MESSAGE_DETACH:
916 /* Detach all streams */
917 pa_source_detach_within_thread(s);
920 case PA_SOURCE_MESSAGE_ATTACH:
922 /* Reattach all streams */
923 pa_source_attach_within_thread(s);
926 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
928 pa_usec_t *usec = userdata;
929 *usec = pa_source_get_requested_latency_within_thread(s);
931 if (*usec == (pa_usec_t) -1)
932 *usec = s->thread_info.max_latency;
937 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
938 pa_usec_t *r = userdata;
940 pa_source_set_latency_range_within_thread(s, r[0], r[1]);
945 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
946 pa_usec_t *r = userdata;
948 r[0] = s->thread_info.min_latency;
949 r[1] = s->thread_info.max_latency;
954 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
956 *((size_t*) userdata) = s->thread_info.max_rewind;
959 case PA_SOURCE_MESSAGE_SET_MAX_REWIND:
961 pa_source_set_max_rewind_within_thread(s, (size_t) offset);
964 case PA_SOURCE_MESSAGE_GET_LATENCY:
967 *((pa_usec_t*) userdata) = 0;
971 /* Implementors need to overwrite this implementation! */
974 case PA_SOURCE_MESSAGE_MAX:
981 /* Called from main thread */
982 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend) {
987 pa_core_assert_ref(c);
989 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx))) {
992 if (source->monitor_of)
995 if ((r = pa_source_suspend(source, suspend)) < 0)
1002 /* Called from main thread */
1003 void pa_source_detach(pa_source *s) {
1004 pa_source_assert_ref(s);
1005 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1007 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
1010 /* Called from main thread */
1011 void pa_source_attach(pa_source *s) {
1012 pa_source_assert_ref(s);
1013 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1015 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
1018 /* Called from IO thread */
1019 void pa_source_detach_within_thread(pa_source *s) {
1020 pa_source_output *o;
1023 pa_source_assert_ref(s);
1024 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
1026 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1031 /* Called from IO thread */
1032 void pa_source_attach_within_thread(pa_source *s) {
1033 pa_source_output *o;
1036 pa_source_assert_ref(s);
1037 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
1039 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1044 /* Called from IO thread */
1045 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
1046 pa_usec_t result = (pa_usec_t) -1;
1047 pa_source_output *o;
1050 pa_source_assert_ref(s);
1052 if (s->thread_info.requested_latency_valid)
1053 return s->thread_info.requested_latency;
1055 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1057 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
1058 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
1059 result = o->thread_info.requested_source_latency;
1061 if (result != (pa_usec_t) -1) {
1062 if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
1063 result = s->thread_info.max_latency;
1065 if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
1066 result = s->thread_info.min_latency;
1069 s->thread_info.requested_latency = result;
1070 s->thread_info.requested_latency_valid = TRUE;
1075 /* Called from main thread */
1076 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
1079 pa_source_assert_ref(s);
1080 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1082 if (s->state == PA_SOURCE_SUSPENDED)
1085 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
1090 /* Called from IO thread */
1091 void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind) {
1092 pa_source_output *o;
1095 pa_source_assert_ref(s);
1097 if (max_rewind == s->thread_info.max_rewind)
1100 s->thread_info.max_rewind = max_rewind;
1102 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
1103 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1104 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
1108 /* Called from main thread */
1109 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
1110 pa_source_assert_ref(s);
1112 if (PA_SOURCE_IS_LINKED(s->state))
1113 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MAX_REWIND, NULL, max_rewind, NULL) == 0);
1115 pa_source_set_max_rewind_within_thread(s, max_rewind);
1118 /* Called from IO thread */
1119 void pa_source_invalidate_requested_latency(pa_source *s) {
1120 pa_source_output *o;
1123 pa_source_assert_ref(s);
1125 s->thread_info.requested_latency_valid = FALSE;
1127 if (s->update_requested_latency)
1128 s->update_requested_latency(s);
1130 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1131 if (o->update_source_requested_latency)
1132 o->update_source_requested_latency(o);
1135 pa_sink_invalidate_requested_latency(s->monitor_of);
1138 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1139 pa_source_assert_ref(s);
1141 /* min_latency == 0: no limit
1142 * min_latency anything else: specified limit
1144 * Similar for max_latency */
1146 if (min_latency < ABSOLUTE_MIN_LATENCY)
1147 min_latency = ABSOLUTE_MIN_LATENCY;
1149 if (max_latency <= 0 ||
1150 max_latency > ABSOLUTE_MAX_LATENCY)
1151 max_latency = ABSOLUTE_MAX_LATENCY;
1153 pa_assert(min_latency <= max_latency);
1155 if (PA_SOURCE_IS_LINKED(s->state)) {
1161 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
1163 s->thread_info.min_latency = min_latency;
1164 s->thread_info.max_latency = max_latency;
1166 s->thread_info.requested_latency_valid = FALSE;
1170 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
1171 pa_source_assert_ref(s);
1172 pa_assert(min_latency);
1173 pa_assert(max_latency);
1175 if (PA_SOURCE_IS_LINKED(s->state)) {
1176 pa_usec_t r[2] = { 0, 0 };
1178 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
1180 *min_latency = r[0];
1181 *max_latency = r[1];
1183 *min_latency = s->thread_info.min_latency;
1184 *max_latency = s->thread_info.max_latency;
1188 /* Called from IO thread */
1189 void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1190 pa_source_output *o;
1193 pa_source_assert_ref(s);
1195 pa_assert(min_latency >= ABSOLUTE_MIN_LATENCY);
1196 pa_assert(max_latency <= ABSOLUTE_MAX_LATENCY);
1197 pa_assert(min_latency <= max_latency);
1199 s->thread_info.min_latency = min_latency;
1200 s->thread_info.max_latency = max_latency;
1202 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1203 if (o->update_source_latency_range)
1204 o->update_source_latency_range(o);
1206 pa_source_invalidate_requested_latency(s);
1209 size_t pa_source_get_max_rewind(pa_source *s) {
1211 pa_source_assert_ref(s);
1213 if (!PA_SOURCE_IS_LINKED(s->state))
1214 return s->thread_info.max_rewind;
1216 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);