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];
126 pa_assert(data->name);
128 s = pa_msgobject_new(pa_source);
130 if (!(name = pa_namereg_register(core, data->name, PA_NAMEREG_SOURCE, s, data->namereg_fail))) {
135 pa_source_new_data_set_name(data, name);
137 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_NEW], data) < 0) {
139 pa_namereg_unregister(core, name);
143 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
144 pa_return_null_if_fail(data->name && pa_utf8_valid(data->name) && data->name[0]);
146 pa_return_null_if_fail(data->sample_spec_is_set && pa_sample_spec_valid(&data->sample_spec));
148 if (!data->channel_map_is_set)
149 pa_return_null_if_fail(pa_channel_map_init_auto(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT));
151 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
152 pa_return_null_if_fail(data->channel_map.channels == data->sample_spec.channels);
154 if (!data->volume_is_set)
155 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
157 pa_return_null_if_fail(pa_cvolume_valid(&data->volume));
158 pa_return_null_if_fail(data->volume.channels == data->sample_spec.channels);
160 if (!data->muted_is_set)
164 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->card->proplist);
166 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], data) < 0) {
168 pa_namereg_unregister(core, name);
172 s->parent.parent.free = source_free;
173 s->parent.process_msg = pa_source_process_msg;
176 s->state = PA_SOURCE_INIT;
178 s->name = pa_xstrdup(name);
179 s->proplist = pa_proplist_copy(data->proplist);
180 s->driver = pa_xstrdup(pa_path_get_filename(data->driver));
181 s->module = data->module;
182 s->card = data->card;
184 s->sample_spec = data->sample_spec;
185 s->channel_map = data->channel_map;
187 s->outputs = pa_idxset_new(NULL, NULL);
189 s->monitor_of = NULL;
191 s->virtual_volume = data->volume;
192 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
193 s->base_volume = PA_VOLUME_NORM;
194 s->n_volume_steps = PA_VOLUME_NORM+1;
195 s->muted = data->muted;
196 s->refresh_volume = s->refresh_muted = FALSE;
204 pa_silence_memchunk_get(
205 &core->silence_cache,
211 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
212 s->thread_info.soft_volume = s->soft_volume;
213 s->thread_info.soft_muted = s->muted;
214 s->thread_info.state = s->state;
215 s->thread_info.max_rewind = 0;
216 s->thread_info.requested_latency_valid = FALSE;
217 s->thread_info.requested_latency = 0;
218 s->thread_info.min_latency = DEFAULT_MIN_LATENCY;
219 s->thread_info.max_latency = 0;
221 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
224 pa_assert_se(pa_idxset_put(s->card->sources, s, NULL) >= 0);
226 pt = pa_proplist_to_string_sep(s->proplist, "\n ");
227 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
230 pa_sample_spec_snprint(st, sizeof(st), &s->sample_spec),
231 pa_channel_map_snprint(cm, sizeof(cm), &s->channel_map),
238 /* Called from main context */
239 static int source_set_state(pa_source *s, pa_source_state_t state) {
241 pa_bool_t suspend_change;
242 pa_source_state_t original_state;
246 if (s->state == state)
249 original_state = s->state;
252 (original_state == PA_SOURCE_SUSPENDED && PA_SOURCE_IS_OPENED(state)) ||
253 (PA_SOURCE_IS_OPENED(original_state) && state == PA_SOURCE_SUSPENDED);
256 if ((ret = s->set_state(s, state)) < 0)
260 if ((ret = pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL)) < 0) {
263 s->set_state(s, original_state);
270 if (state != PA_SOURCE_UNLINKED) { /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
271 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
272 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
275 if (suspend_change) {
279 /* We're suspending or resuming, tell everyone about it */
281 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
282 if (s->state == PA_SOURCE_SUSPENDED &&
283 (o->flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND))
284 pa_source_output_kill(o);
286 o->suspend(o, state == PA_SOURCE_SUSPENDED);
293 /* Called from main context */
294 void pa_source_put(pa_source *s) {
295 pa_source_assert_ref(s);
297 pa_assert(s->state == PA_SOURCE_INIT);
299 /* The following fields must be initialized properly when calling _put() */
300 pa_assert(s->asyncmsgq);
301 pa_assert(s->rtpoll);
302 pa_assert(!s->thread_info.min_latency || !s->thread_info.max_latency ||
303 s->thread_info.min_latency <= s->thread_info.max_latency);
305 if (!(s->flags & PA_SOURCE_HW_VOLUME_CTRL)) {
306 s->flags |= PA_SOURCE_DECIBEL_VOLUME;
308 s->thread_info.soft_volume = s->soft_volume;
309 s->thread_info.soft_muted = s->muted;
312 if (s->flags & PA_SOURCE_DECIBEL_VOLUME)
313 s->n_volume_steps = PA_VOLUME_NORM+1;
315 pa_assert_se(source_set_state(s, PA_SOURCE_IDLE) == 0);
317 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
318 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PUT], s);
321 /* Called from main context */
322 void pa_source_unlink(pa_source *s) {
324 pa_source_output *o, *j = NULL;
328 /* See pa_sink_unlink() for a couple of comments how this function
331 linked = PA_SOURCE_IS_LINKED(s->state);
334 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
336 if (s->state != PA_SOURCE_UNLINKED)
337 pa_namereg_unregister(s->core, s->name);
338 pa_idxset_remove_by_data(s->core->sources, s, NULL);
341 pa_idxset_remove_by_data(s->card->sources, s, NULL);
343 while ((o = pa_idxset_first(s->outputs, NULL))) {
345 pa_source_output_kill(o);
350 source_set_state(s, PA_SOURCE_UNLINKED);
352 s->state = PA_SOURCE_UNLINKED;
357 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
358 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
362 /* Called from main context */
363 static void source_free(pa_object *o) {
364 pa_source_output *so;
365 pa_source *s = PA_SOURCE(o);
368 pa_assert(pa_source_refcnt(s) == 0);
370 if (PA_SOURCE_IS_LINKED(s->state))
373 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
375 pa_idxset_free(s->outputs, NULL, NULL);
377 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
378 pa_source_output_unref(so);
380 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
382 if (s->silence.memblock)
383 pa_memblock_unref(s->silence.memblock);
389 pa_proplist_free(s->proplist);
394 /* Called from main context */
395 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
396 pa_source_assert_ref(s);
401 /* Called from main context */
402 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
403 pa_source_assert_ref(s);
408 /* Called from main context */
409 int pa_source_update_status(pa_source*s) {
410 pa_source_assert_ref(s);
411 pa_assert(PA_SOURCE_IS_LINKED(s->state));
413 if (s->state == PA_SOURCE_SUSPENDED)
416 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
419 /* Called from main context */
420 int pa_source_suspend(pa_source *s, pa_bool_t suspend) {
421 pa_source_assert_ref(s);
422 pa_assert(PA_SOURCE_IS_LINKED(s->state));
425 return source_set_state(s, PA_SOURCE_SUSPENDED);
427 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
430 /* Called from main context */
431 pa_queue *pa_source_move_all_start(pa_source *s) {
433 pa_source_output *o, *n;
436 pa_source_assert_ref(s);
437 pa_assert(PA_SOURCE_IS_LINKED(s->state));
441 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = n) {
442 n = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx));
444 if (pa_source_output_start_move(o) >= 0)
445 pa_queue_push(q, pa_source_output_ref(o));
451 /* Called from main context */
452 void pa_source_move_all_finish(pa_source *s, pa_queue *q, pa_bool_t save) {
455 pa_source_assert_ref(s);
456 pa_assert(PA_SOURCE_IS_LINKED(s->state));
459 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
460 if (pa_source_output_finish_move(o, s, save) < 0)
461 pa_source_output_unlink(o);
463 pa_source_output_unref(o);
466 pa_queue_free(q, NULL, NULL);
469 /* Called from main context */
470 void pa_source_move_all_fail(pa_queue *q) {
474 while ((o = PA_SOURCE_OUTPUT(pa_queue_pop(q)))) {
475 pa_source_output_unlink(o);
476 pa_source_output_unref(o);
479 pa_queue_free(q, NULL, NULL);
482 /* Called from IO thread context */
483 void pa_source_process_rewind(pa_source *s, size_t nbytes) {
487 pa_source_assert_ref(s);
488 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
490 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
496 pa_log_debug("Processing rewind...");
498 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
499 pa_source_output_assert_ref(o);
500 pa_source_output_process_rewind(o, nbytes);
504 /* Called from IO thread context */
505 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
509 pa_source_assert_ref(s);
510 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
513 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
516 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
517 pa_memchunk vchunk = *chunk;
519 pa_memblock_ref(vchunk.memblock);
520 pa_memchunk_make_writable(&vchunk, 0);
522 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
523 pa_silence_memchunk(&vchunk, &s->sample_spec);
525 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
527 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
528 pa_source_output_assert_ref(o);
530 if (!o->thread_info.direct_on_input)
531 pa_source_output_push(o, &vchunk);
534 pa_memblock_unref(vchunk.memblock);
537 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL))) {
538 pa_source_output_assert_ref(o);
540 if (!o->thread_info.direct_on_input)
541 pa_source_output_push(o, chunk);
546 /* Called from IO thread context */
547 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk) {
548 pa_source_assert_ref(s);
549 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
550 pa_source_output_assert_ref(o);
551 pa_assert(o->thread_info.direct_on_input);
554 if (s->thread_info.state == PA_SOURCE_SUSPENDED)
557 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
558 pa_memchunk vchunk = *chunk;
560 pa_memblock_ref(vchunk.memblock);
561 pa_memchunk_make_writable(&vchunk, 0);
563 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
564 pa_silence_memchunk(&vchunk, &s->sample_spec);
566 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
568 pa_source_output_push(o, &vchunk);
570 pa_memblock_unref(vchunk.memblock);
572 pa_source_output_push(o, chunk);
575 /* Called from main thread */
576 pa_usec_t pa_source_get_latency(pa_source *s) {
579 pa_source_assert_ref(s);
580 pa_assert(PA_SOURCE_IS_LINKED(s->state));
582 if (s->state == PA_SOURCE_SUSPENDED)
585 if (!(s->flags & PA_SOURCE_LATENCY))
588 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
593 /* Called from main thread */
594 void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
595 pa_cvolume old_virtual_volume;
596 pa_bool_t virtual_volume_changed;
598 pa_source_assert_ref(s);
599 pa_assert(PA_SOURCE_IS_LINKED(s->state));
601 pa_assert(pa_cvolume_valid(volume));
602 pa_assert(pa_cvolume_compatible(volume, &s->sample_spec));
604 old_virtual_volume = s->virtual_volume;
605 s->virtual_volume = *volume;
606 virtual_volume_changed = !pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume);
609 pa_cvolume_reset(&s->soft_volume, s->sample_spec.channels);
612 s->soft_volume = s->virtual_volume;
614 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
616 if (virtual_volume_changed)
617 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
620 /* Called from main thread. Only to be called by source implementor */
621 void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume) {
622 pa_source_assert_ref(s);
625 if (PA_SOURCE_IS_LINKED(s->state))
626 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, NULL, 0, NULL) == 0);
628 s->thread_info.soft_volume = *volume;
631 /* Called from main thread */
632 const pa_cvolume *pa_source_get_volume(pa_source *s, pa_bool_t force_refresh) {
633 pa_source_assert_ref(s);
634 pa_assert(PA_SOURCE_IS_LINKED(s->state));
636 if (s->refresh_volume || force_refresh) {
637 pa_cvolume old_virtual_volume = s->virtual_volume;
642 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, NULL, 0, NULL) == 0);
644 if (!pa_cvolume_equal(&old_virtual_volume, &s->virtual_volume))
645 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
648 return &s->virtual_volume;
651 /* Called from main thread */
652 void pa_source_set_mute(pa_source *s, pa_bool_t mute) {
655 pa_source_assert_ref(s);
656 pa_assert(PA_SOURCE_IS_LINKED(s->state));
658 old_muted = s->muted;
664 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, NULL, 0, NULL) == 0);
666 if (old_muted != s->muted)
667 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
670 /* Called from main thread */
671 pa_bool_t pa_source_get_mute(pa_source *s, pa_bool_t force_refresh) {
673 pa_source_assert_ref(s);
674 pa_assert(PA_SOURCE_IS_LINKED(s->state));
676 if (s->refresh_muted || force_refresh) {
677 pa_bool_t old_muted = s->muted;
682 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, NULL, 0, NULL) == 0);
684 if (old_muted != s->muted)
685 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
691 /* Called from main thread */
692 pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p) {
693 pa_source_assert_ref(s);
696 pa_proplist_update(s->proplist, mode, p);
698 if (PA_SOURCE_IS_LINKED(s->state)) {
699 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
700 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
706 /* Called from main thread */
707 void pa_source_set_description(pa_source *s, const char *description) {
709 pa_source_assert_ref(s);
711 if (!description && !pa_proplist_contains(s->proplist, PA_PROP_DEVICE_DESCRIPTION))
714 old = pa_proplist_gets(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
716 if (old && description && !strcmp(old, description))
720 pa_proplist_sets(s->proplist, PA_PROP_DEVICE_DESCRIPTION, description);
722 pa_proplist_unset(s->proplist, PA_PROP_DEVICE_DESCRIPTION);
724 if (PA_SOURCE_IS_LINKED(s->state)) {
725 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
726 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], s);
730 /* Called from main thread */
731 unsigned pa_source_linked_by(pa_source *s) {
732 pa_source_assert_ref(s);
733 pa_assert(PA_SOURCE_IS_LINKED(s->state));
735 return pa_idxset_size(s->outputs);
738 /* Called from main thread */
739 unsigned pa_source_used_by(pa_source *s) {
742 pa_source_assert_ref(s);
743 pa_assert(PA_SOURCE_IS_LINKED(s->state));
745 ret = pa_idxset_size(s->outputs);
746 pa_assert(ret >= s->n_corked);
748 return ret - s->n_corked;
751 /* Called from main thread */
752 unsigned pa_source_check_suspend(pa_source *s) {
757 pa_source_assert_ref(s);
759 if (!PA_SOURCE_IS_LINKED(s->state))
764 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx))) {
765 pa_source_output_state_t st;
767 st = pa_source_output_get_state(o);
768 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(st));
770 if (st == PA_SOURCE_OUTPUT_CORKED)
773 if (o->flags & PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND)
782 /* Called from IO thread, except when it is not */
783 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
784 pa_source *s = PA_SOURCE(object);
785 pa_source_assert_ref(s);
787 switch ((pa_source_message_t) code) {
789 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
790 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
792 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
794 if (o->direct_on_input) {
795 o->thread_info.direct_on_input = o->direct_on_input;
796 pa_hashmap_put(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index), o);
799 pa_assert(!o->thread_info.attached);
800 o->thread_info.attached = TRUE;
805 pa_source_output_set_state_within_thread(o, o->state);
807 if (o->thread_info.requested_source_latency != (pa_usec_t) -1)
808 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
810 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
812 /* We don't just invalidate the requested latency here,
813 * because if we are in a move we might need to fix up the
814 * requested latency. */
815 pa_source_output_set_requested_latency_within_thread(o, o->thread_info.requested_source_latency);
820 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
821 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
823 pa_source_output_set_state_within_thread(o, o->state);
828 pa_assert(o->thread_info.attached);
829 o->thread_info.attached = FALSE;
831 if (o->thread_info.direct_on_input) {
832 pa_hashmap_remove(o->thread_info.direct_on_input->thread_info.direct_outputs, PA_UINT32_TO_PTR(o->index));
833 o->thread_info.direct_on_input = NULL;
836 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
837 pa_source_output_unref(o);
839 pa_source_invalidate_requested_latency(s);
844 case PA_SOURCE_MESSAGE_SET_VOLUME:
845 s->thread_info.soft_volume = s->soft_volume;
848 case PA_SOURCE_MESSAGE_GET_VOLUME:
851 case PA_SOURCE_MESSAGE_SET_MUTE:
852 s->thread_info.soft_muted = s->muted;
855 case PA_SOURCE_MESSAGE_GET_MUTE:
858 case PA_SOURCE_MESSAGE_SET_STATE:
859 s->thread_info.state = PA_PTR_TO_UINT(userdata);
862 case PA_SOURCE_MESSAGE_DETACH:
864 /* Detach all streams */
865 pa_source_detach_within_thread(s);
868 case PA_SOURCE_MESSAGE_ATTACH:
870 /* Reattach all streams */
871 pa_source_attach_within_thread(s);
874 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
876 pa_usec_t *usec = userdata;
877 *usec = pa_source_get_requested_latency_within_thread(s);
879 if (*usec == (pa_usec_t) -1)
880 *usec = s->thread_info.max_latency;
885 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE: {
886 pa_usec_t *r = userdata;
888 pa_source_update_latency_range(s, r[0], r[1]);
893 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE: {
894 pa_usec_t *r = userdata;
896 r[0] = s->thread_info.min_latency;
897 r[1] = s->thread_info.max_latency;
902 case PA_SOURCE_MESSAGE_GET_MAX_REWIND:
904 *((size_t*) userdata) = s->thread_info.max_rewind;
907 case PA_SOURCE_MESSAGE_GET_LATENCY:
910 *((pa_usec_t*) userdata) = 0;
914 /* Implementors need to overwrite this implementation! */
917 case PA_SOURCE_MESSAGE_MAX:
924 /* Called from main thread */
925 int pa_source_suspend_all(pa_core *c, pa_bool_t suspend) {
930 pa_core_assert_ref(c);
932 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx)))
933 ret -= pa_source_suspend(source, suspend) < 0;
938 /* Called from main thread */
939 void pa_source_detach(pa_source *s) {
940 pa_source_assert_ref(s);
941 pa_assert(PA_SOURCE_IS_LINKED(s->state));
943 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_DETACH, NULL, 0, NULL) == 0);
946 /* Called from main thread */
947 void pa_source_attach(pa_source *s) {
948 pa_source_assert_ref(s);
949 pa_assert(PA_SOURCE_IS_LINKED(s->state));
951 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_ATTACH, NULL, 0, NULL) == 0);
954 /* Called from IO thread */
955 void pa_source_detach_within_thread(pa_source *s) {
959 pa_source_assert_ref(s);
960 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
962 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
967 /* Called from IO thread */
968 void pa_source_attach_within_thread(pa_source *s) {
972 pa_source_assert_ref(s);
973 pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state));
975 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
980 /* Called from IO thread */
981 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
982 pa_usec_t result = (pa_usec_t) -1;
986 pa_source_assert_ref(s);
988 if (s->thread_info.requested_latency_valid)
989 return s->thread_info.requested_latency;
991 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
993 if (o->thread_info.requested_source_latency != (pa_usec_t) -1 &&
994 (result == (pa_usec_t) -1 || result > o->thread_info.requested_source_latency))
995 result = o->thread_info.requested_source_latency;
997 if (result != (pa_usec_t) -1) {
998 if (s->thread_info.max_latency > 0 && result > s->thread_info.max_latency)
999 result = s->thread_info.max_latency;
1001 if (s->thread_info.min_latency > 0 && result < s->thread_info.min_latency)
1002 result = s->thread_info.min_latency;
1005 s->thread_info.requested_latency = result;
1006 s->thread_info.requested_latency_valid = TRUE;
1011 /* Called from main thread */
1012 pa_usec_t pa_source_get_requested_latency(pa_source *s) {
1015 pa_source_assert_ref(s);
1016 pa_assert(PA_SOURCE_IS_LINKED(s->state));
1018 if (s->state == PA_SOURCE_SUSPENDED)
1021 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
1026 /* Called from IO thread */
1027 void pa_source_set_max_rewind(pa_source *s, size_t max_rewind) {
1028 pa_source_output *o;
1031 pa_source_assert_ref(s);
1033 if (max_rewind == s->thread_info.max_rewind)
1036 s->thread_info.max_rewind = max_rewind;
1038 if (PA_SOURCE_IS_LINKED(s->thread_info.state)) {
1039 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1040 pa_source_output_update_max_rewind(o, s->thread_info.max_rewind);
1044 void pa_source_invalidate_requested_latency(pa_source *s) {
1045 pa_source_output *o;
1048 pa_source_assert_ref(s);
1050 s->thread_info.requested_latency_valid = FALSE;
1052 if (s->update_requested_latency)
1053 s->update_requested_latency(s);
1055 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1056 if (o->update_source_requested_latency)
1057 o->update_source_requested_latency(o);
1060 pa_sink_invalidate_requested_latency(s->monitor_of);
1063 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1064 pa_source_assert_ref(s);
1066 /* min_latency == 0: no limit
1067 * min_latency == (size_t) -1: default limit
1068 * min_latency anything else: specified limit
1070 * Similar for max_latency */
1072 if (min_latency == (pa_usec_t) -1)
1073 min_latency = DEFAULT_MIN_LATENCY;
1075 if (max_latency == (pa_usec_t) -1)
1076 max_latency = min_latency;
1078 pa_assert(!min_latency || !max_latency ||
1079 min_latency <= max_latency);
1081 if (PA_SOURCE_IS_LINKED(s->state)) {
1087 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE, r, 0, NULL) == 0);
1089 s->thread_info.min_latency = min_latency;
1090 s->thread_info.max_latency = max_latency;
1092 s->thread_info.requested_latency_valid = FALSE;
1096 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency) {
1097 pa_source_assert_ref(s);
1098 pa_assert(min_latency);
1099 pa_assert(max_latency);
1101 if (PA_SOURCE_IS_LINKED(s->state)) {
1102 pa_usec_t r[2] = { 0, 0 };
1104 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE, r, 0, NULL) == 0);
1106 *min_latency = r[0];
1107 *max_latency = r[1];
1109 *min_latency = s->thread_info.min_latency;
1110 *max_latency = s->thread_info.max_latency;
1114 /* Called from IO thread */
1115 void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency) {
1116 pa_source_output *o;
1119 pa_source_assert_ref(s);
1121 s->thread_info.min_latency = min_latency;
1122 s->thread_info.max_latency = max_latency;
1124 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
1125 if (o->update_source_latency_range)
1126 o->update_source_latency_range(o);
1128 pa_source_invalidate_requested_latency(s);
1131 size_t pa_source_get_max_rewind(pa_source *s) {
1133 pa_source_assert_ref(s);
1135 if (!PA_SOURCE_IS_LINKED(s->state))
1136 return s->thread_info.max_rewind;
1138 pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MAX_REWIND, &r, 0, NULL) == 0);