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>
35 #include <pulsecore/source-output.h>
36 #include <pulsecore/namereg.h>
37 #include <pulsecore/core-subscribe.h>
38 #include <pulsecore/log.h>
39 #include <pulsecore/sample-util.h>
43 #define DEFAULT_MIN_LATENCY (4*PA_USEC_PER_MSEC)
45 static PA_DEFINE_CHECK_TYPE(pa_source, pa_msgobject);
47 static void source_free(pa_object *o);
49 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data) {
52 memset(data, 0, sizeof(*data));
53 data->proplist = pa_proplist_new();
58 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name) {
62 data->name = pa_xstrdup(name);
65 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec) {
68 if ((data->sample_spec_is_set = !!spec))
69 data->sample_spec = *spec;
72 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map) {
75 if ((data->channel_map_is_set = !!map))
76 data->channel_map = *map;
79 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume) {
82 if ((data->volume_is_set = !!volume))
83 data->volume = *volume;
86 void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute) {
89 data->muted_is_set = TRUE;
93 void pa_source_new_data_done(pa_source_new_data *data) {
97 pa_proplist_free(data->proplist);
100 /* Called from main context */
101 static void reset_callbacks(pa_source *s) {
105 s->get_volume = NULL;
106 s->set_volume = NULL;
109 s->update_requested_latency = NULL;
112 /* Called from main context */
113 pa_source* pa_source_new(
115 pa_source_new_data *data,
116 pa_source_flags_t flags) {
120 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
124 pa_assert(data->name);
126 s = pa_msgobject_new(pa_source);
128 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
133 pa_source_new_data_set_name(data, name);
135 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
137 pa_namereg_unregister(core, name);
141 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
142 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
144 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
146 if (!data->channel_map_is_set)
147 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
149 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
150 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
152 if (!data->volume_is_set)
153 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
155 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
156 pa_return_null_if_fail(data->volume.channels == data->sample_spec.channels);
158 if (!data->muted_is_set)
161 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
163 pa_namereg_unregister(core, name);
167 s->parent.parent.free = source_free;
168 s->parent.process_msg = pa_source_process_msg;
171 s->state = PA_SOURCE_INIT;
173 s->name = pa_xstrdup(name);
174 s->proplist = pa_proplist_copy(data->proplist);
175 s->driver = pa_xstrdup(data->driver);
176 s->module = data->module;
178 s->sample_spec = data->sample_spec;
179 s->channel_map = data->channel_map;
181 s->outputs = pa_idxset_new(NULL, NULL);
183 s->monitor_of = NULL;
185 s->volume = data->volume;
186 s->muted = data->muted;
187 s->refresh_volume = s->refresh_muted = FALSE;
195 pa_silence_memchunk_get(
196 &core->silence_cache,
202 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
203 pa_cvolume_reset(&s->thread_info.soft_volume, s->sample_spec.channels);
204 s->thread_info.soft_muted = FALSE;
205 s->thread_info.state = s->state;
206 s->thread_info.max_rewind = 0;
207 s->thread_info.requested_latency_valid = FALSE;
208 s->thread_info.requested_latency = 0;
209 s->thread_info.min_latency = DEFAULT_MIN_LATENCY;
210 s->thread_info.max_latency = 0;
212 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
214 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s",
217 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
218 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map));
223 /* Called from main context */
224 static int source_set_state(pa_source *s, pa_source_state_t state) {
226 pa_bool_t suspend_change;
230 if (s->state == state)
234 (s->state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
235 (PA_SOURCE_IS_OPENED(s->state) && state == PA_SOURCE_SUSPENDED);
238 if ((ret = s->set_state(s, state)) < 0)
242 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL) == 0);
246 if (suspend_change) {
250 /* We're suspending or resuming, tell everyone about it */
252 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
254 o->suspend(o, state == PA_SINK_SUSPENDED);
257 if (state != PA_SOURCE_UNLINKED) /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
258 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
263 /* Called from main context */
264 void pa_source_put(pa_source *s) {
265 pa_source_assert_ref(s);
267 pa_assert(s->state == PA_SINK_INIT);
269 /* The following fields must be initialized properly when calling _put() */
270 pa_assert(s->asyncmsgq);
271 pa_assert(s->rtpoll);
272 pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
273 s->thread_info.min_latency <= s->thread_info.max_latency);
275 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) {
276 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
278 s->thread_info.soft_volume = s->volume;
279 s->thread_info.soft_muted = s->muted;
282 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
284 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
285 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
288 /* Called from main context */
289 void pa_source_unlink(pa_source *s) {
291 pa_source_output *o, *j = NULL;
295 /* See pa_sink_unlink() for a couple of comments how this function
298 linked = PA_SOURCE_IS_LINKED(s->state);
301 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
303 if (s->state != PA_SOURCE_UNLINKED)
304 pa_namereg_unregister(s->core, s->name);
305 pa_idxset_remove_by_data(s->core->sources, s, NULL);
307 while ((o = pa_idxset_first(s->outputs, NULL))) {
309 pa_source_output_kill(o);
314 source_set_state(s, PA_SOURCE_UNLINKED);
316 s->state = PA_SOURCE_UNLINKED;
321 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
322 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
326 /* Called from main context */
327 static void source_free(pa_object *o) {
328 pa_source_output *so;
329 pa_source *s = PA_SOURCE(o);
332 pa_assert(pa_source_refcnt(s) == 0);
334 if (PA_SOURCE_IS_LINKED(s->state))
337 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
339 pa_idxset_free(s->outputs, NULL, NULL);
341 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
342 pa_source_output_unref(so);
344 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
346 if (s->silence.memblock)
347 pa_memblock_unref(s->silence.memblock);
353 pa_proplist_free(s->proplist);
358 /* Called from main context */
359 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
360 pa_source_assert_ref(s);
365 /* Called from main context */
366 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
367 pa_source_assert_ref(s);
372 /* Called from main context */
373 int pa_source_update_status(pa_source*s) {
374 pa_source_assert_ref(s);
375 pa_assert(PA_SOURCE_IS_LINKED(s->state));
377 if (s->state == PA_SOURCE_SUSPENDED)
380 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
383 /* Called from main context */
384 int pa_source_suspend(pa_source *s, pa_bool_t suspend) {
385 pa_source_assert_ref(s);
386 pa_assert(PA_SOURCE_IS_LINKED(s->state));
389 return source_set_state(s, PA_SOURCE_SUSPENDED);
391 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
394 /* Called from IO thread context */
395 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
399 pa_source_assert_ref(s);
400 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
405 pa_log_debug("Processing rewind...");
407 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
408 pa_source_output_assert_ref(o);
409 pa_source_output_process_rewind(o, nbytes);
413 /* Called from IO thread context */
414 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
418 pa_source_assert_ref(s);
419 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
422 if (s->thread_info.state != PA_SOURCE_RUNNING)
425 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
426 pa_memchunk vchunk = *chunk;
428 pa_memblock_ref(vchunk.memblock);
429 pa_memchunk_make_writable(&vchunk, 0);
431 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
432 pa_silence_memchunk(&vchunk, &s->sample_spec);
434 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
436 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
437 pa_source_output_assert_ref(o);
439 if (!o->thread_info.direct_on_input)
440 pa_source_output_push(o, &vchunk);
443 pa_memblock_unref(vchunk.memblock);
446 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
447 pa_source_output_assert_ref(o);
449 if (!o->thread_info.direct_on_input)
450 pa_source_output_push(o, chunk);
455 /* Called from IO thread context */
456 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
457 pa_source_assert_ref(s);
458 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
459 pa_source_output_assert_ref(o);
460 pa_assert(o->thread_info.direct_on_input);
463 if (s->thread_info.state != PA_SOURCE_RUNNING)
466 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
467 pa_memchunk vchunk = *chunk;
469 pa_memblock_ref(vchunk.memblock);
470 pa_memchunk_make_writable(&vchunk, 0);
472 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
473 pa_silence_memchunk(&vchunk, &s->sample_spec);
475 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
477 pa_source_output_push(o, &vchunk);
479 pa_memblock_unref(vchunk.memblock);
481 pa_source_output_push(o, chunk);
484 /* Called from main thread */
485 pa_usec_t pa_source_get_latency(pa_source *s) {
488 pa_source_assert_ref(s);
489 pa_assert(PA_SOURCE_IS_LINKED(s->state));
491 if (!PA_SOURCE_IS_OPENED(s->state))
494 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
499 /* Called from main thread */
500 void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
503 pa_source_assert_ref(s);
504 pa_assert(PA_SOURCE_IS_LINKED(s->state));
507 changed = !pa_cvolume_equal(volume, &s->volume);
510 if (s->set_volume && s->set_volume(s) < 0)
511 s->set_volume = NULL;
514 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, volume, 0, NULL);
517 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
520 /* Called from main thread */
521 const pa_cvolume *pa_source_get_volume(pa_source *s) {
522 pa_source_assert_ref(s);
523 pa_assert(PA_SOURCE_IS_LINKED(s->state));
525 if (s->refresh_volume) {
526 pa_cvolume old_volume = s->volume;
528 if (s->get_volume && s->get_volume(s) < 0)
529 s->get_volume = NULL;
532 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, &s->volume, 0, NULL);
534 if (!pa_cvolume_equal(&old_volume, &s->volume))
535 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
541 /* Called from main thread */
542 void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
545 pa_source_assert_ref(s);
546 pa_assert(PA_SOURCE_IS_LINKED(s->state));
548 changed = s->muted != mute;
551 if (s->set_mute && s->set_mute(s) < 0)
555 pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, PA_UINT_TO_PTR(mute), 0, NULL, NULL);
558 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
561 /* Called from main thread */
562 pa_bool_t pa_source_get_mute(pa_source *s) {
564 pa_source_assert_ref(s);
565 pa_assert(PA_SOURCE_IS_LINKED(s->state));
567 if (s->refresh_muted) {
568 pa_bool_t old_muted = s->muted;
570 if (s->get_mute && s->get_mute(s) < 0)
574 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &s->muted, 0, NULL);
576 if (old_muted != s->muted)
577 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
583 /* Called from main thread */
584 void pa_source_set_description(pa_source *s, const char *description) {
586 pa_source_assert_ref(s);
588 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
591 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
593 if (old && description && !strcmp(old, description))
597 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
599 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
601 if (PA_SOURCE_IS_LINKED(s->state)) {
602 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
603 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
607 /* Called from main thread */
608 unsigned pa_source_linked_by(pa_source *s) {
609 pa_source_assert_ref(s);
610 pa_assert(PA_SOURCE_IS_LINKED(s->state));
612 return pa_idxset_size(s->outputs);
615 /* Called from main thread */
616 unsigned pa_source_used_by(pa_source *s) {
619 pa_source_assert_ref(s);
620 pa_assert(PA_SOURCE_IS_LINKED(s->state));
622 ret = pa_idxset_size(s->outputs);
623 pa_assert(ret >= s->n_corked);
625 return ret - s->n_corked;
628 /* Called from IO thread, except when it is not */
629 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
630 pa_source *s = PA_SOURCE(object);
631 pa_source_assert_ref(s);
633 switch ((pa_source_message_t) code) {
635 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
636 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
638 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
640 if (o->direct_on_input) {
641 o->thread_info.direct_on_input = o->direct_on_input;
642 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
645 pa_assert(!o->thread_info.attached);
646 o->thread_info.attached = TRUE;
651 pa_source_output_set_state_within_thread(o, o->state);
653 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
655 /* We don't just invalidate the requested latency here,
656 * because if we are in a move we might need to fix up the
657 * requested latency. */
658 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
663 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
664 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
666 pa_source_output_set_state_within_thread(o, o->state);
671 pa_assert(o->thread_info.attached);
672 o->thread_info.attached = FALSE;
674 if (o->thread_info.direct_on_input) {
675 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
676 o->thread_info.direct_on_input = NULL;
679 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
680 pa_source_output_unref(o);
682 pa_source_invalidate_requested_latency(s);
687 case PA_SOURCE_MESSAGE_SET_VOLUME:
688 s->thread_info.soft_volume = *((pa_cvolume*) userdata);
691 case PA_SOURCE_MESSAGE_SET_MUTE:
692 s->thread_info.soft_muted = PA_PTR_TO_UINT(userdata);
695 case PA_SOURCE_MESSAGE_GET_VOLUME:
696 *((pa_cvolume*) userdata) = s->thread_info.soft_volume;
699 case PA_SOURCE_MESSAGE_GET_MUTE:
700 *((pa_bool_t*) userdata) = s->thread_info.soft_muted;
703 case PA_SOURCE_MESSAGE_SET_STATE:
704 s->thread_info.state = PA_PTR_TO_UINT(userdata);
707 case PA_SOURCE_MESSAGE_DETACH:
709 /* Detach all streams */
710 pa_source_detach_within_thread(s);
713 case PA_SOURCE_MESSAGE_ATTACH:
715 /* Reattach all streams */
716 pa_source_attach_within_thread(s);
719 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
721 pa_usec_t *usec = userdata;
722 *usec = pa_source_get_requested_latency_within_thread(s);
724 if (*usec == (pa_usec_t) -1)
725 *usec = s->thread_info.max_latency;
730 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
731 pa_usec_t *r = userdata;
733 pa_source_update_latency_range(s, r[0], r[1]);
738 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
739 pa_usec_t *r = userdata;
741 r[0] = s->thread_info.min_latency;
742 r[1] = s->thread_info.max_latency;
747 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
749 *((size_t*) userdata) = s->thread_info.max_rewind;
752 case PA_SOURCE_MESSAGE_GET_LATENCY:
755 *((pa_usec_t*) userdata) = 0;
759 /* Implementors need to overwrite this implementation! */
762 case PA_SOURCE_MESSAGE_MAX:
769 /* Called from main thread */
770 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend) {
775 pa_core_assert_ref(c);
777 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx)))
778 ret -= pa_source_suspend(source, suspend) < 0;
783 /* Called from main thread */
784 void pa_source_detach(pa_source *s) {
785 pa_source_assert_ref(s);
786 pa_assert(PA_SOURCE_IS_LINKED(s->state));
788 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
791 /* Called from main thread */
792 void pa_source_attach(pa_source *s) {
793 pa_source_assert_ref(s);
794 pa_assert(PA_SOURCE_IS_LINKED(s->state));
796 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
799 /* Called from IO thread */
800 void pa_source_detach_within_thread(pa_source *s) {
804 pa_source_assert_ref(s);
805 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
807 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
812 /* Called from IO thread */
813 void pa_source_attach_within_thread(pa_source *s) {
817 pa_source_assert_ref(s);
818 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
820 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
825 /* Called from IO thread */
826 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
827 pa_usec_t result = (pa_usec_t) -1;
831 pa_source_assert_ref(s);
833 if (s->thread_info.requested_latency_valid)
834 return s->thread_info.requested_latency;
836 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
838 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
839 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
840 result = o->thread_info.requested_source_latency;
842 if (result != (pa_usec_t) -1) {
843 if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
844 result = s->thread_info.max_latency;
846 if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
847 result = s->thread_info.min_latency;
850 s->thread_info.requested_latency = result;
851 s->thread_info.requested_latency_valid = TRUE;
856 /* Called from main thread */
857 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
860 pa_source_assert_ref(s);
861 pa_assert(PA_SOURCE_IS_LINKED(s->state));
863 if (!PA_SOURCE_IS_OPENED(s->state))
866 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
871 /* Called from IO thread */
872 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
876 pa_source_assert_ref(s);
878 if (max_rewind == s->thread_info.max_rewind)
881 s->thread_info.max_rewind = max_rewind;
883 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
884 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
885 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
889 void pa_source_invalidate_requested_latency(pa_source *s) {
893 pa_source_assert_ref(s);
895 s->thread_info.requested_latency_valid = FALSE;
897 if (s->update_requested_latency)
898 s->update_requested_latency(s);
900 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
901 o->update_source_requested_latency(o);
904 pa_sink_invalidate_requested_latency(s->monitor_of);
907 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
908 pa_source_assert_ref(s);
910 /* min_latency == 0: no limit
911 * min_latency == (size_t) -1: default limit
912 * min_latency anything else: specified limit
914 * Similar for max_latency */
916 if (min_latency == (pa_usec_t) -1)
917 min_latency = DEFAULT_MIN_LATENCY;
919 if (max_latency == (pa_usec_t) -1)
920 max_latency = min_latency;
922 pa_assert(!min_latency || !max_latency ||
923 min_latency <= max_latency);
925 if (PA_SINK_IS_LINKED(s->state)) {
931 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
933 s->thread_info.min_latency = min_latency;
934 s->thread_info.max_latency = max_latency;
936 s->thread_info.requested_latency_valid = FALSE;
940 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
941 pa_source_assert_ref(s);
942 pa_assert(min_latency);
943 pa_assert(max_latency);
945 if (PA_SOURCE_IS_LINKED(s->state)) {
946 pa_usec_t r[2] = { 0, 0 };
948 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
953 *min_latency = s->thread_info.min_latency;
954 *max_latency = s->thread_info.max_latency;
958 /* Called from IO thread */
959 void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
963 pa_source_assert_ref(s);
965 s->thread_info.min_latency = min_latency;
966 s->thread_info.max_latency = max_latency;
968 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
969 if (o->update_source_latency_range)
970 o->update_source_latency_range(o);
972 pa_source_invalidate_requested_latency(s);
975 size_t pa_source_get_max_rewind(pa_source *s) {
977 pa_source_assert_ref(s);
979 if (!PA_SOURCE_IS_LINKED(s->state))
980 return s->thread_info.max_rewind;
982 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);