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->volume = data->volume;
191 s->muted = data->muted;
192 s->refresh_volume = s->refresh_muted = FALSE;
193 s->base_volume = PA_VOLUME_NORM;
201 pa_silence_memchunk_get(
202 &core->silence_cache,
208 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
209 pa_cvolume_reset(&s->thread_info.soft_volume, s->sample_spec.channels);
210 s->thread_info.soft_muted = FALSE;
211 s->thread_info.state = s->state;
212 s->thread_info.max_rewind = 0;
213 s->thread_info.requested_latency_valid = FALSE;
214 s->thread_info.requested_latency = 0;
215 s->thread_info.min_latency = DEFAULT_MIN_LATENCY;
216 s->thread_info.max_latency = 0;
218 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
221 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
223 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s",
226 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
227 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map));
232 /* Called from main context */
233 static int source_set_state(pa_source *s, pa_source_state_t state) {
235 pa_bool_t suspend_change;
236 pa_source_state_t original_state;
240 if (s->state == state)
243 original_state = s->state;
246 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
247 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
250 if ((ret = s->set_state(s, state)) < 0)
254 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
257 s->set_state(s, original_state);
264 if (suspend_change) {
268 /* We're suspending or resuming, tell everyone about it */
270 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
272 o->suspend(o, state == PA_SOURCE_SUSPENDED);
275 if (state != PA_SOURCE_UNLINKED) /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
276 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
281 /* Called from main context */
282 void pa_source_put(pa_source *s) {
283 pa_source_assert_ref(s);
285 pa_assert(s->state == PA_SOURCE_INIT);
287 /* The following fields must be initialized properly when calling _put() */
288 pa_assert(s->asyncmsgq);
289 pa_assert(s->rtpoll);
290 pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
291 s->thread_info.min_latency <= s->thread_info.max_latency);
293 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) {
294 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
296 s->thread_info.soft_volume = s->volume;
297 s->thread_info.soft_muted = s->muted;
300 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
302 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
303 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
306 /* Called from main context */
307 void pa_source_unlink(pa_source *s) {
309 pa_source_output *o, *j = NULL;
313 /* See pa_sink_unlink() for a couple of comments how this function
316 linked = PA_SOURCE_IS_LINKED(s->state);
319 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
321 if (s->state != PA_SOURCE_UNLINKED)
322 pa_namereg_unregister(s->core, s->name);
323 pa_idxset_remove_by_data(s->core->sources, s, NULL);
326 pa_idxset_remove_by_data(s->card->sources, s, NULL);
328 while ((o = pa_idxset_first(s->outputs, NULL))) {
330 pa_source_output_kill(o);
335 source_set_state(s, PA_SOURCE_UNLINKED);
337 s->state = PA_SOURCE_UNLINKED;
342 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
343 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
347 /* Called from main context */
348 static void source_free(pa_object *o) {
349 pa_source_output *so;
350 pa_source *s = PA_SOURCE(o);
353 pa_assert(pa_source_refcnt(s) == 0);
355 if (PA_SOURCE_IS_LINKED(s->state))
358 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
360 pa_idxset_free(s->outputs, NULL, NULL);
362 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
363 pa_source_output_unref(so);
365 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
367 if (s->silence.memblock)
368 pa_memblock_unref(s->silence.memblock);
374 pa_proplist_free(s->proplist);
379 /* Called from main context */
380 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
381 pa_source_assert_ref(s);
386 /* Called from main context */
387 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
388 pa_source_assert_ref(s);
393 /* Called from main context */
394 int pa_source_update_status(pa_source*s) {
395 pa_source_assert_ref(s);
396 pa_assert(PA_SOURCE_IS_LINKED(s->state));
398 if (s->state == PA_SOURCE_SUSPENDED)
401 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
404 /* Called from main context */
405 int pa_source_suspend(pa_source *s, pa_bool_t suspend) {
406 pa_source_assert_ref(s);
407 pa_assert(PA_SOURCE_IS_LINKED(s->state));
410 return source_set_state(s, PA_SOURCE_SUSPENDED);
412 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
415 /* Called from IO thread context */
416 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
420 pa_source_assert_ref(s);
421 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
426 pa_log_debug("Processing rewind...");
428 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
429 pa_source_output_assert_ref(o);
430 pa_source_output_process_rewind(o, nbytes);
434 /* Called from IO thread context */
435 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
439 pa_source_assert_ref(s);
440 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
443 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
444 pa_memchunk vchunk = *chunk;
446 pa_memblock_ref(vchunk.memblock);
447 pa_memchunk_make_writable(&vchunk, 0);
449 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
450 pa_silence_memchunk(&vchunk, &s->sample_spec);
452 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
454 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
455 pa_source_output_assert_ref(o);
457 if (!o->thread_info.direct_on_input)
458 pa_source_output_push(o, &vchunk);
461 pa_memblock_unref(vchunk.memblock);
464 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
465 pa_source_output_assert_ref(o);
467 if (!o->thread_info.direct_on_input)
468 pa_source_output_push(o, chunk);
473 /* Called from IO thread context */
474 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
475 pa_source_assert_ref(s);
476 pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state));
477 pa_source_output_assert_ref(o);
478 pa_assert(o->thread_info.direct_on_input);
481 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
482 pa_memchunk vchunk = *chunk;
484 pa_memblock_ref(vchunk.memblock);
485 pa_memchunk_make_writable(&vchunk, 0);
487 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
488 pa_silence_memchunk(&vchunk, &s->sample_spec);
490 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
492 pa_source_output_push(o, &vchunk);
494 pa_memblock_unref(vchunk.memblock);
496 pa_source_output_push(o, chunk);
499 /* Called from main thread */
500 pa_usec_t pa_source_get_latency(pa_source *s) {
503 pa_source_assert_ref(s);
504 pa_assert(PA_SOURCE_IS_LINKED(s->state));
506 if (!PA_SOURCE_IS_OPENED(s->state))
509 if (!(s->flags & PA_SOURCE_LATENCY))
512 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
517 /* Called from main thread */
518 void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
521 pa_source_assert_ref(s);
522 pa_assert(PA_SOURCE_IS_LINKED(s->state));
525 changed = !pa_cvolume_equal(volume, &s->volume);
528 if (s->set_volume && s->set_volume(s) < 0)
529 s->set_volume = NULL;
532 pa_source_set_soft_volume(s, volume);
535 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
538 /* Called from main thread */
539 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
540 pa_source_assert_ref(s);
543 if (PA_SOURCE_IS_LINKED(s->state))
544 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, volume, 0, NULL);
546 s->thread_info.soft_volume = *volume;
549 /* Called from main thread */
550 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
551 pa_source_assert_ref(s);
552 pa_assert(PA_SOURCE_IS_LINKED(s->state));
554 if (s->refresh_volume || force_refresh) {
555 pa_cvolume old_volume = s->volume;
557 if (s->get_volume && s->get_volume(s) < 0)
558 s->get_volume = NULL;
561 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, &s->volume, 0, NULL);
563 if (!pa_cvolume_equal(&old_volume, &s->volume))
564 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
570 /* Called from main thread */
571 void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
574 pa_source_assert_ref(s);
575 pa_assert(PA_SOURCE_IS_LINKED(s->state));
577 changed = s->muted != mute;
580 if (s->set_mute && s->set_mute(s) < 0)
584 pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, PA_UINT_TO_PTR(mute), 0, NULL, NULL);
587 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
590 /* Called from main thread */
591 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
593 pa_source_assert_ref(s);
594 pa_assert(PA_SOURCE_IS_LINKED(s->state));
596 if (s->refresh_muted || force_refresh) {
597 pa_bool_t old_muted = s->muted;
599 if (s->get_mute && s->get_mute(s) < 0)
603 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &s->muted, 0, NULL);
605 if (old_muted != s->muted)
606 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
612 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
614 pa_source_assert_ref(s);
616 pa_proplist_update(s->proplist, mode, p);
618 if (PA_SOURCE_IS_LINKED(s->state)) {
619 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
620 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
626 /* Called from main thread */
627 void pa_source_set_description(pa_source *s, const char *description) {
629 pa_source_assert_ref(s);
631 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
634 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
636 if (old && description && !strcmp(old, description))
640 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
642 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
644 if (PA_SOURCE_IS_LINKED(s->state)) {
645 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
646 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
650 /* Called from main thread */
651 unsigned pa_source_linked_by(pa_source *s) {
652 pa_source_assert_ref(s);
653 pa_assert(PA_SOURCE_IS_LINKED(s->state));
655 return pa_idxset_size(s->outputs);
658 /* Called from main thread */
659 unsigned pa_source_used_by(pa_source *s) {
662 pa_source_assert_ref(s);
663 pa_assert(PA_SOURCE_IS_LINKED(s->state));
665 ret = pa_idxset_size(s->outputs);
666 pa_assert(ret >= s->n_corked);
668 return ret - s->n_corked;
671 /* Called from main thread */
672 unsigned pa_source_check_suspend(pa_source *s) {
677 pa_source_assert_ref(s);
679 if (!PA_SOURCE_IS_LINKED(s->state))
684 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx))) {
685 pa_source_output_state_t st;
687 st = pa_source_output_get_state(o);
688 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(st));
690 if (st == PA_SOURCE_OUTPUT_CORKED)
693 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
702 /* Called from IO thread, except when it is not */
703 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
704 pa_source *s = PA_SOURCE(object);
705 pa_source_assert_ref(s);
707 switch ((pa_source_message_t) code) {
709 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
710 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
712 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
714 if (o->direct_on_input) {
715 o->thread_info.direct_on_input = o->direct_on_input;
716 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
719 pa_assert(!o->thread_info.attached);
720 o->thread_info.attached = TRUE;
725 pa_source_output_set_state_within_thread(o, o->state);
727 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
728 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
730 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
732 /* We don't just invalidate the requested latency here,
733 * because if we are in a move we might need to fix up the
734 * requested latency. */
735 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
740 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
741 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
743 pa_source_output_set_state_within_thread(o, o->state);
748 pa_assert(o->thread_info.attached);
749 o->thread_info.attached = FALSE;
751 if (o->thread_info.direct_on_input) {
752 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
753 o->thread_info.direct_on_input = NULL;
756 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
757 pa_source_output_unref(o);
759 pa_source_invalidate_requested_latency(s);
764 case PA_SOURCE_MESSAGE_SET_VOLUME:
765 s->thread_info.soft_volume = *((pa_cvolume*) userdata);
768 case PA_SOURCE_MESSAGE_SET_MUTE:
769 s->thread_info.soft_muted = PA_PTR_TO_UINT(userdata);
772 case PA_SOURCE_MESSAGE_GET_VOLUME:
773 *((pa_cvolume*) userdata) = s->thread_info.soft_volume;
776 case PA_SOURCE_MESSAGE_GET_MUTE:
777 *((pa_bool_t*) userdata) = s->thread_info.soft_muted;
780 case PA_SOURCE_MESSAGE_SET_STATE:
781 s->thread_info.state = PA_PTR_TO_UINT(userdata);
784 case PA_SOURCE_MESSAGE_DETACH:
786 /* Detach all streams */
787 pa_source_detach_within_thread(s);
790 case PA_SOURCE_MESSAGE_ATTACH:
792 /* Reattach all streams */
793 pa_source_attach_within_thread(s);
796 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
798 pa_usec_t *usec = userdata;
799 *usec = pa_source_get_requested_latency_within_thread(s);
801 if (*usec == (pa_usec_t) -1)
802 *usec = s->thread_info.max_latency;
807 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
808 pa_usec_t *r = userdata;
810 pa_source_update_latency_range(s, r[0], r[1]);
815 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
816 pa_usec_t *r = userdata;
818 r[0] = s->thread_info.min_latency;
819 r[1] = s->thread_info.max_latency;
824 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
826 *((size_t*) userdata) = s->thread_info.max_rewind;
829 case PA_SOURCE_MESSAGE_GET_LATENCY:
832 *((pa_usec_t*) userdata) = 0;
836 /* Implementors need to overwrite this implementation! */
839 case PA_SOURCE_MESSAGE_MAX:
846 /* Called from main thread */
847 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend) {
852 pa_core_assert_ref(c);
854 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx)))
855 ret -= pa_source_suspend(source, suspend) < 0;
860 /* Called from main thread */
861 void pa_source_detach(pa_source *s) {
862 pa_source_assert_ref(s);
863 pa_assert(PA_SOURCE_IS_LINKED(s->state));
865 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
868 /* Called from main thread */
869 void pa_source_attach(pa_source *s) {
870 pa_source_assert_ref(s);
871 pa_assert(PA_SOURCE_IS_LINKED(s->state));
873 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
876 /* Called from IO thread */
877 void pa_source_detach_within_thread(pa_source *s) {
881 pa_source_assert_ref(s);
882 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
884 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
889 /* Called from IO thread */
890 void pa_source_attach_within_thread(pa_source *s) {
894 pa_source_assert_ref(s);
895 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
897 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
902 /* Called from IO thread */
903 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
904 pa_usec_t result = (pa_usec_t) -1;
908 pa_source_assert_ref(s);
910 if (s->thread_info.requested_latency_valid)
911 return s->thread_info.requested_latency;
913 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
915 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
916 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
917 result = o->thread_info.requested_source_latency;
919 if (result != (pa_usec_t) -1) {
920 if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
921 result = s->thread_info.max_latency;
923 if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
924 result = s->thread_info.min_latency;
927 s->thread_info.requested_latency = result;
928 s->thread_info.requested_latency_valid = TRUE;
933 /* Called from main thread */
934 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
937 pa_source_assert_ref(s);
938 pa_assert(PA_SOURCE_IS_LINKED(s->state));
940 if (!PA_SOURCE_IS_OPENED(s->state))
943 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
948 /* Called from IO thread */
949 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
953 pa_source_assert_ref(s);
955 if (max_rewind == s->thread_info.max_rewind)
958 s->thread_info.max_rewind = max_rewind;
960 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
961 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
962 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
966 void pa_source_invalidate_requested_latency(pa_source *s) {
970 pa_source_assert_ref(s);
972 s->thread_info.requested_latency_valid = FALSE;
974 if (s->update_requested_latency)
975 s->update_requested_latency(s);
977 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
978 if (o->update_source_requested_latency)
979 o->update_source_requested_latency(o);
982 pa_sink_invalidate_requested_latency(s->monitor_of);
985 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
986 pa_source_assert_ref(s);
988 /* min_latency == 0: no limit
989 * min_latency == (size_t) -1: default limit
990 * min_latency anything else: specified limit
992 * Similar for max_latency */
994 if (min_latency == (pa_usec_t) -1)
995 min_latency = DEFAULT_MIN_LATENCY;
997 if (max_latency == (pa_usec_t) -1)
998 max_latency = min_latency;
1000 pa_assert(!min_latency || !max_latency ||
1001 min_latency <= max_latency);
1003 if (PA_SOURCE_IS_LINKED(s->state)) {
1009 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
1011 s->thread_info.min_latency = min_latency;
1012 s->thread_info.max_latency = max_latency;
1014 s->thread_info.requested_latency_valid = FALSE;
1018 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
1019 pa_source_assert_ref(s);
1020 pa_assert(min_latency);
1021 pa_assert(max_latency);
1023 if (PA_SOURCE_IS_LINKED(s->state)) {
1024 pa_usec_t r[2] = { 0, 0 };
1026 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
1028 *min_latency = r[0];
1029 *max_latency = r[1];
1031 *min_latency = s->thread_info.min_latency;
1032 *max_latency = s->thread_info.max_latency;
1036 /* Called from IO thread */
1037 void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1038 pa_source_output *o;
1041 pa_source_assert_ref(s);
1043 s->thread_info.min_latency = min_latency;
1044 s->thread_info.max_latency = max_latency;
1046 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1047 if (o->update_source_latency_range)
1048 o->update_source_latency_range(o);
1050 pa_source_invalidate_requested_latency(s);
1053 size_t pa_source_get_max_rewind(pa_source *s) {
1055 pa_source_assert_ref(s);
1057 if (!PA_SOURCE_IS_LINKED(s->state))
1058 return s->thread_info.max_rewind;
1060 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);