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 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 DEFAULT_MIN_LATENCY (4*PA_USEC_PER_MSEC)
46 static PA_DEFINE_CHECK_TYPE(pa_source, pa_msgobject);
48 static void source_free(pa_object *o);
50 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
53 memset(data, 0, sizeof(*data));
54 data->proplist = pa_proplist_new();
59 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
63 data->name = pa_xstrdup(name);
66 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
69 if ((data->sample_spec_is_set = !!spec))
70 data->sample_spec = *spec;
73 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
76 if ((data->channel_map_is_set = !!map))
77 data->channel_map = *map;
80 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
83 if ((data->volume_is_set = !!volume))
84 data->volume = *volume;
87 void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
90 data->muted_is_set = TRUE;
94 void pa_source_new_data_done(pa_source_new_data *data) {
98 pa_proplist_free(data->proplist);
101 /* Called from main context */
102 static void reset_callbacks(pa_source *s) {
106 s->get_volume = NULL;
107 s->set_volume = NULL;
110 s->update_requested_latency = NULL;
113 /* Called from main context */
114 pa_source* pa_source_new(
116 pa_source_new_data *data,
117 pa_source_flags_t flags) {
121 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
125 pa_assert(data->name);
127 s = pa_msgobject_new(pa_source);
129 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
134 pa_source_new_data_set_name(data, name);
136 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
138 pa_namereg_unregister(core, name);
142 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
143 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
145 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
147 if (!data->channel_map_is_set)
148 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
150 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
151 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
153 if (!data->volume_is_set)
154 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
156 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
157 pa_return_null_if_fail(data->volume.channels == data->sample_spec.channels);
159 if (!data->muted_is_set)
163 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
165 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
167 pa_namereg_unregister(core, name);
171 s->parent.parent.free = source_free;
172 s->parent.process_msg = pa_source_process_msg;
175 s->state = PA_SOURCE_INIT;
177 s->name = pa_xstrdup(name);
178 s->proplist = pa_proplist_copy(data->proplist);
179 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
180 s->module = data->module;
181 s->card = data->card;
183 s->sample_spec = data->sample_spec;
184 s->channel_map = data->channel_map;
186 s->outputs = pa_idxset_new(NULL, NULL);
188 s->monitor_of = NULL;
190 s->virtual_volume = data->volume;
191 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
192 s->base_volume = PA_VOLUME_NORM;
193 s->n_volume_steps = PA_VOLUME_NORM+1;
194 s->muted = data->muted;
195 s->refresh_volume = s->refresh_muted = FALSE;
203 pa_silence_memchunk_get(
204 &core->silence_cache,
210 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
211 s->thread_info.soft_volume = s->soft_volume;
212 s->thread_info.soft_muted = s->muted;
213 s->thread_info.state = s->state;
214 s->thread_info.max_rewind = 0;
215 s->thread_info.requested_latency_valid = FALSE;
216 s->thread_info.requested_latency = 0;
217 s->thread_info.min_latency = DEFAULT_MIN_LATENCY;
218 s->thread_info.max_latency = 0;
220 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
223 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
225 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s",
228 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
229 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map));
234 /* Called from main context */
235 static int source_set_state(pa_source *s, pa_source_state_t state) {
237 pa_bool_t suspend_change;
238 pa_source_state_t original_state;
242 if (s->state == state)
245 original_state = s->state;
248 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
249 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
252 if ((ret = s->set_state(s, state)) < 0)
256 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
259 s->set_state(s, original_state);
266 if (suspend_change) {
270 /* We're suspending or resuming, tell everyone about it */
272 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
274 o->suspend(o, state == PA_SOURCE_SUSPENDED);
277 if (state != PA_SOURCE_UNLINKED) /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
278 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
283 /* Called from main context */
284 void pa_source_put(pa_source *s) {
285 pa_source_assert_ref(s);
287 pa_assert(s->state == PA_SOURCE_INIT);
289 /* The following fields must be initialized properly when calling _put() */
290 pa_assert(s->asyncmsgq);
291 pa_assert(s->rtpoll);
292 pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
293 s->thread_info.min_latency <= s->thread_info.max_latency);
295 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) {
296 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
298 s->thread_info.soft_volume = s->soft_volume;
299 s->thread_info.soft_muted = s->muted;
302 if (s->flags & PA_SOURCE_DECIBEL_VOLUME)
303 s->n_volume_steps = PA_VOLUME_NORM+1;
305 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
307 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
308 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
311 /* Called from main context */
312 void pa_source_unlink(pa_source *s) {
314 pa_source_output *o, *j = NULL;
318 /* See pa_sink_unlink() for a couple of comments how this function
321 linked = PA_SOURCE_IS_LINKED(s->state);
324 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
326 if (s->state != PA_SOURCE_UNLINKED)
327 pa_namereg_unregister(s->core, s->name);
328 pa_idxset_remove_by_data(s->core->sources, s, NULL);
331 pa_idxset_remove_by_data(s->card->sources, s, NULL);
333 while ((o = pa_idxset_first(s->outputs, NULL))) {
335 pa_source_output_kill(o);
340 source_set_state(s, PA_SOURCE_UNLINKED);
342 s->state = PA_SOURCE_UNLINKED;
347 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
348 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
352 /* Called from main context */
353 static void source_free(pa_object *o) {
354 pa_source_output *so;
355 pa_source *s = PA_SOURCE(o);
358 pa_assert(pa_source_refcnt(s) == 0);
360 if (PA_SOURCE_IS_LINKED(s->state))
363 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
365 pa_idxset_free(s->outputs, NULL, NULL);
367 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
368 pa_source_output_unref(so);
370 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
372 if (s->silence.memblock)
373 pa_memblock_unref(s->silence.memblock);
379 pa_proplist_free(s->proplist);
384 /* Called from main context */
385 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
386 pa_source_assert_ref(s);
391 /* Called from main context */
392 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
393 pa_source_assert_ref(s);
398 /* Called from main context */
399 int pa_source_update_status(pa_source*s) {
400 pa_source_assert_ref(s);
401 pa_assert(PA_SOURCE_IS_LINKED(s->state));
403 if (s->state == PA_SOURCE_SUSPENDED)
406 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
409 /* Called from main context */
410 int pa_source_suspend(pa_source *s, pa_bool_t suspend) {
411 pa_source_assert_ref(s);
412 pa_assert(PA_SOURCE_IS_LINKED(s->state));
415 return source_set_state(s, PA_SOURCE_SUSPENDED);
417 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
420 /* Called from main context */
421 pa_queue *pa_source_move_all_start(pa_source *s) {
423 pa_source_output *o, *n;
426 pa_source_assert_ref(s);
427 pa_assert(PA_SOURCE_IS_LINKED(s->state));
431 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
432 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
434 if (pa_source_output_start_move(o) >= 0)
435 pa_queue_push(q, pa_source_output_ref(o));
441 /* Called from main context */
442 void pa_source_move_all_finish(pa_source *s, pa_queue *q) {
445 pa_source_assert_ref(s);
446 pa_assert(PA_SOURCE_IS_LINKED(s->state));
449 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
450 if (pa_source_output_finish_move(o, s) < 0)
451 pa_source_output_unlink(o);
453 pa_source_output_unref(o);
456 pa_queue_free(q, NULL, NULL);
459 /* Called from main context */
460 void pa_source_move_all_fail(pa_queue *q) {
464 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
465 pa_source_output_unlink(o);
466 pa_source_output_unref(o);
469 pa_queue_free(q, NULL, NULL);
472 /* Called from IO thread context */
473 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
477 pa_source_assert_ref(s);
478 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
483 pa_log_debug("Processing rewind...");
485 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
486 pa_source_output_assert_ref(o);
487 pa_source_output_process_rewind(o, nbytes);
491 /* Called from IO thread context */
492 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
496 pa_source_assert_ref(s);
497 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
500 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
501 pa_memchunk vchunk = *chunk;
503 pa_memblock_ref(vchunk.memblock);
504 pa_memchunk_make_writable(&vchunk, 0);
506 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
507 pa_silence_memchunk(&vchunk, &s->sample_spec);
509 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
511 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
512 pa_source_output_assert_ref(o);
514 if (!o->thread_info.direct_on_input)
515 pa_source_output_push(o, &vchunk);
518 pa_memblock_unref(vchunk.memblock);
521 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
522 pa_source_output_assert_ref(o);
524 if (!o->thread_info.direct_on_input)
525 pa_source_output_push(o, chunk);
530 /* Called from IO thread context */
531 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
532 pa_source_assert_ref(s);
533 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
534 pa_source_output_assert_ref(o);
535 pa_assert(o->thread_info.direct_on_input);
538 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
539 pa_memchunk vchunk = *chunk;
541 pa_memblock_ref(vchunk.memblock);
542 pa_memchunk_make_writable(&vchunk, 0);
544 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
545 pa_silence_memchunk(&vchunk, &s->sample_spec);
547 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
549 pa_source_output_push(o, &vchunk);
551 pa_memblock_unref(vchunk.memblock);
553 pa_source_output_push(o, chunk);
556 /* Called from main thread */
557 pa_usec_t pa_source_get_latency(pa_source *s) {
560 pa_source_assert_ref(s);
561 pa_assert(PA_SOURCE_IS_LINKED(s->state));
563 if (!PA_SOURCE_IS_OPENED(s->state))
566 if (!(s->flags & PA_SOURCE_LATENCY))
569 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
574 /* Called from main thread */
575 void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
576 pa_cvolume old_virtual_volume;
577 pa_bool_t virtual_volume_changed;
579 pa_source_assert_ref(s);
580 pa_assert(PA_SOURCE_IS_LINKED(s->state));
582 pa_assert(pa_cvolume_valid(volume));
583 pa_assert(pa_cvolume_compatible(volume, &s->sample_spec));
585 old_virtual_volume = s->virtual_volume;
586 s->virtual_volume = *volume;
587 virtual_volume_changed = !pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume);
590 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
593 s->soft_volume = s->virtual_volume;
595 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
597 if (virtual_volume_changed)
598 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
601 /* Called from main thread. Only to be called by source implementor */
602 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
603 pa_source_assert_ref(s);
606 if (PA_SOURCE_IS_LINKED(s->state))
607 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
609 s->thread_info.soft_volume = *volume;
612 /* Called from main thread */
613 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
614 pa_source_assert_ref(s);
615 pa_assert(PA_SOURCE_IS_LINKED(s->state));
617 if (s->refresh_volume || force_refresh) {
618 pa_cvolume old_virtual_volume = s->virtual_volume;
623 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
625 if (!pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume))
626 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
629 return &s->virtual_volume;
632 /* Called from main thread */
633 void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
636 pa_source_assert_ref(s);
637 pa_assert(PA_SOURCE_IS_LINKED(s->state));
639 old_muted = s->muted;
645 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
647 if (old_muted != s->muted)
648 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
651 /* Called from main thread */
652 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
654 pa_source_assert_ref(s);
655 pa_assert(PA_SOURCE_IS_LINKED(s->state));
657 if (s->refresh_muted || force_refresh) {
658 pa_bool_t old_muted = s->muted;
663 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
665 if (old_muted != s->muted)
666 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
672 /* Called from main thread */
673 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
675 pa_source_assert_ref(s);
677 pa_proplist_update(s->proplist, mode, p);
679 if (PA_SOURCE_IS_LINKED(s->state)) {
680 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
681 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
687 /* Called from main thread */
688 void pa_source_set_description(pa_source *s, const char *description) {
690 pa_source_assert_ref(s);
692 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
695 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
697 if (old && description && !strcmp(old, description))
701 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
703 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
705 if (PA_SOURCE_IS_LINKED(s->state)) {
706 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
707 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
711 /* Called from main thread */
712 unsigned pa_source_linked_by(pa_source *s) {
713 pa_source_assert_ref(s);
714 pa_assert(PA_SOURCE_IS_LINKED(s->state));
716 return pa_idxset_size(s->outputs);
719 /* Called from main thread */
720 unsigned pa_source_used_by(pa_source *s) {
723 pa_source_assert_ref(s);
724 pa_assert(PA_SOURCE_IS_LINKED(s->state));
726 ret = pa_idxset_size(s->outputs);
727 pa_assert(ret >= s->n_corked);
729 return ret - s->n_corked;
732 /* Called from main thread */
733 unsigned pa_source_check_suspend(pa_source *s) {
738 pa_source_assert_ref(s);
740 if (!PA_SOURCE_IS_LINKED(s->state))
745 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx))) {
746 pa_source_output_state_t st;
748 st = pa_source_output_get_state(o);
749 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(st));
751 if (st == PA_SOURCE_OUTPUT_CORKED)
754 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
763 /* Called from IO thread, except when it is not */
764 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
765 pa_source *s = PA_SOURCE(object);
766 pa_source_assert_ref(s);
768 switch ((pa_source_message_t) code) {
770 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
771 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
773 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
775 if (o->direct_on_input) {
776 o->thread_info.direct_on_input = o->direct_on_input;
777 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
780 pa_assert(!o->thread_info.attached);
781 o->thread_info.attached = TRUE;
786 pa_source_output_set_state_within_thread(o, o->state);
788 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
789 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
791 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
793 /* We don't just invalidate the requested latency here,
794 * because if we are in a move we might need to fix up the
795 * requested latency. */
796 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
801 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
802 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
804 pa_source_output_set_state_within_thread(o, o->state);
809 pa_assert(o->thread_info.attached);
810 o->thread_info.attached = FALSE;
812 if (o->thread_info.direct_on_input) {
813 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
814 o->thread_info.direct_on_input = NULL;
817 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
818 pa_source_output_unref(o);
820 pa_source_invalidate_requested_latency(s);
825 case PA_SOURCE_MESSAGE_SET_VOLUME:
826 s->thread_info.soft_volume = s->soft_volume;
829 case PA_SOURCE_MESSAGE_GET_VOLUME:
832 case PA_SOURCE_MESSAGE_SET_MUTE:
833 s->thread_info.soft_muted = s->muted;
836 case PA_SOURCE_MESSAGE_GET_MUTE:
839 case PA_SOURCE_MESSAGE_SET_STATE:
840 s->thread_info.state = PA_PTR_TO_UINT(userdata);
843 case PA_SOURCE_MESSAGE_DETACH:
845 /* Detach all streams */
846 pa_source_detach_within_thread(s);
849 case PA_SOURCE_MESSAGE_ATTACH:
851 /* Reattach all streams */
852 pa_source_attach_within_thread(s);
855 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
857 pa_usec_t *usec = userdata;
858 *usec = pa_source_get_requested_latency_within_thread(s);
860 if (*usec == (pa_usec_t) -1)
861 *usec = s->thread_info.max_latency;
866 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
867 pa_usec_t *r = userdata;
869 pa_source_update_latency_range(s, r[0], r[1]);
874 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
875 pa_usec_t *r = userdata;
877 r[0] = s->thread_info.min_latency;
878 r[1] = s->thread_info.max_latency;
883 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
885 *((size_t*) userdata) = s->thread_info.max_rewind;
888 case PA_SOURCE_MESSAGE_GET_LATENCY:
891 *((pa_usec_t*) userdata) = 0;
895 /* Implementors need to overwrite this implementation! */
898 case PA_SOURCE_MESSAGE_MAX:
905 /* Called from main thread */
906 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend) {
911 pa_core_assert_ref(c);
913 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx)))
914 ret -= pa_source_suspend(source, suspend) < 0;
919 /* Called from main thread */
920 void pa_source_detach(pa_source *s) {
921 pa_source_assert_ref(s);
922 pa_assert(PA_SOURCE_IS_LINKED(s->state));
924 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
927 /* Called from main thread */
928 void pa_source_attach(pa_source *s) {
929 pa_source_assert_ref(s);
930 pa_assert(PA_SOURCE_IS_LINKED(s->state));
932 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
935 /* Called from IO thread */
936 void pa_source_detach_within_thread(pa_source *s) {
940 pa_source_assert_ref(s);
941 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
943 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
948 /* Called from IO thread */
949 void pa_source_attach_within_thread(pa_source *s) {
953 pa_source_assert_ref(s);
954 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
956 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
961 /* Called from IO thread */
962 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
963 pa_usec_t result = (pa_usec_t) -1;
967 pa_source_assert_ref(s);
969 if (s->thread_info.requested_latency_valid)
970 return s->thread_info.requested_latency;
972 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
974 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
975 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
976 result = o->thread_info.requested_source_latency;
978 if (result != (pa_usec_t) -1) {
979 if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
980 result = s->thread_info.max_latency;
982 if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
983 result = s->thread_info.min_latency;
986 s->thread_info.requested_latency = result;
987 s->thread_info.requested_latency_valid = TRUE;
992 /* Called from main thread */
993 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
996 pa_source_assert_ref(s);
997 pa_assert(PA_SOURCE_IS_LINKED(s->state));
999 if (!PA_SOURCE_IS_OPENED(s->state))
1002 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
1007 /* Called from IO thread */
1008 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
1009 pa_source_output *o;
1012 pa_source_assert_ref(s);
1014 if (max_rewind == s->thread_info.max_rewind)
1017 s->thread_info.max_rewind = max_rewind;
1019 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
1020 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1021 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
1025 void pa_source_invalidate_requested_latency(pa_source *s) {
1026 pa_source_output *o;
1029 pa_source_assert_ref(s);
1031 s->thread_info.requested_latency_valid = FALSE;
1033 if (s->update_requested_latency)
1034 s->update_requested_latency(s);
1036 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1037 if (o->update_source_requested_latency)
1038 o->update_source_requested_latency(o);
1041 pa_sink_invalidate_requested_latency(s->monitor_of);
1044 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1045 pa_source_assert_ref(s);
1047 /* min_latency == 0: no limit
1048 * min_latency == (size_t) -1: default limit
1049 * min_latency anything else: specified limit
1051 * Similar for max_latency */
1053 if (min_latency == (pa_usec_t) -1)
1054 min_latency = DEFAULT_MIN_LATENCY;
1056 if (max_latency == (pa_usec_t) -1)
1057 max_latency = min_latency;
1059 pa_assert(!min_latency || !max_latency ||
1060 min_latency <= max_latency);
1062 if (PA_SOURCE_IS_LINKED(s->state)) {
1068 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
1070 s->thread_info.min_latency = min_latency;
1071 s->thread_info.max_latency = max_latency;
1073 s->thread_info.requested_latency_valid = FALSE;
1077 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
1078 pa_source_assert_ref(s);
1079 pa_assert(min_latency);
1080 pa_assert(max_latency);
1082 if (PA_SOURCE_IS_LINKED(s->state)) {
1083 pa_usec_t r[2] = { 0, 0 };
1085 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
1087 *min_latency = r[0];
1088 *max_latency = r[1];
1090 *min_latency = s->thread_info.min_latency;
1091 *max_latency = s->thread_info.max_latency;
1095 /* Called from IO thread */
1096 void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1097 pa_source_output *o;
1100 pa_source_assert_ref(s);
1102 s->thread_info.min_latency = min_latency;
1103 s->thread_info.max_latency = max_latency;
1105 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1106 if (o->update_source_latency_range)
1107 o->update_source_latency_range(o);
1109 pa_source_invalidate_requested_latency(s);
1112 size_t pa_source_get_max_rewind(pa_source *s) {
1114 pa_source_assert_ref(s);
1116 if (!PA_SOURCE_IS_LINKED(s->state))
1117 return s->thread_info.max_rewind;
1119 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);