4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
7 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
33 #include <pulse/utf8.h>
34 #include <pulse/xmalloc.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 static PA_DEFINE_CHECK_TYPE(pa_source, pa_msgobject);
46 static void source_free(pa_object *o);
48 pa_source* pa_source_new(
53 const pa_sample_spec *spec,
54 const pa_channel_map *map) {
64 pa_return_null_if_fail(pa_sample_spec_valid(spec));
67 map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT);
69 pa_return_null_if_fail(map && pa_channel_map_valid(map));
70 pa_return_null_if_fail(map->channels == spec->channels);
71 pa_return_null_if_fail(!driver || pa_utf8_valid(driver));
72 pa_return_null_if_fail(pa_utf8_valid(name) && *name);
74 s = pa_msgobject_new(pa_source);
76 if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SOURCE, s, fail))) {
81 s->parent.parent.free = source_free;
82 s->parent.process_msg = pa_source_process_msg;
85 s->state = PA_SOURCE_INIT;
87 s->name = pa_xstrdup(name);
88 s->description = NULL;
89 s->driver = pa_xstrdup(driver);
92 s->sample_spec = *spec;
93 s->channel_map = *map;
95 s->outputs = pa_idxset_new(NULL, NULL);
98 pa_cvolume_reset(&s->volume, spec->channels);
100 s->refresh_volume = s->refresh_muted = 0;
102 s->get_latency = NULL;
103 s->set_volume = NULL;
104 s->get_volume = NULL;
113 pa_assert_se(pa_idxset_put(core->sources, s, &s->index) >= 0);
115 pa_sample_spec_snprint(st, sizeof(st), spec);
116 pa_log_info("Created source %u \"%s\" with sample spec \"%s\"", s->index, s->name, st);
118 s->thread_info.outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
119 s->thread_info.soft_volume = s->volume;
120 s->thread_info.soft_muted = s->muted;
121 s->thread_info.state = s->state;
126 void pa_source_put(pa_source *s) {
127 pa_source_assert_ref(s);
129 pa_assert(s->state == PA_SINK_INIT);
130 pa_assert(s->rtpoll);
131 pa_assert(s->asyncmsgq);
133 s->thread_info.state = s->state = PA_SOURCE_IDLE;
135 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index);
136 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_NEW_POST], s);
139 static int source_set_state(pa_source *s, pa_source_state_t state) {
144 if (s->state == state)
147 if (state == PA_SOURCE_SUSPENDED && !(s->flags & PA_SOURCE_CAN_SUSPEND))
150 if ((s->state == PA_SOURCE_SUSPENDED && PA_SOURCE_OPENED(state)) ||
151 (PA_SOURCE_OPENED(s->state) && state == PA_SOURCE_SUSPENDED)) {
155 /* We're suspending or resuming, tell everyone about it */
157 for (o = PA_SOURCE_OUTPUT(pa_idxset_first(s->outputs, &idx)); o; o = PA_SOURCE_OUTPUT(pa_idxset_next(s->outputs, &idx)))
159 o->suspend(o, state == PA_SINK_SUSPENDED);
163 if ((ret = s->set_state(s, state)) < 0)
166 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL) < 0)
171 if (state != PA_SOURCE_UNLINKED) /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
172 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], s);
176 void pa_source_unlink(pa_source *s) {
177 pa_source_output *o, *j = NULL;
180 pa_assert(PA_SOURCE_LINKED(s->state));
182 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], s);
184 pa_namereg_unregister(s->core, s->name);
185 pa_idxset_remove_by_data(s->core->sources, s, NULL);
187 while ((o = pa_idxset_first(s->outputs, NULL))) {
189 pa_source_output_kill(o);
193 source_set_state(s, PA_SOURCE_UNLINKED);
195 s->get_latency = NULL;
196 s->get_volume = NULL;
197 s->set_volume = NULL;
202 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
204 pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], s);
207 static void source_free(pa_object *o) {
208 pa_source_output *so;
209 pa_source *s = PA_SOURCE(o);
212 pa_assert(pa_source_refcnt(s) == 0);
214 if (PA_SOURCE_LINKED(s->state))
217 pa_log_info("Freeing source %u \"%s\"", s->index, s->name);
219 pa_idxset_free(s->outputs, NULL, NULL);
221 while ((so = pa_hashmap_steal_first(s->thread_info.outputs)))
222 pa_source_output_unref(so);
224 pa_hashmap_free(s->thread_info.outputs, NULL, NULL);
227 pa_xfree(s->description);
232 int pa_source_update_status(pa_source*s) {
233 pa_source_assert_ref(s);
234 pa_assert(PA_SOURCE_LINKED(s->state));
236 if (s->state == PA_SOURCE_SUSPENDED)
239 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
242 int pa_source_suspend(pa_source *s, int suspend) {
243 pa_source_assert_ref(s);
244 pa_assert(PA_SOURCE_LINKED(s->state));
247 return source_set_state(s, PA_SOURCE_SUSPENDED);
249 return source_set_state(s, pa_source_used_by(s) ? PA_SOURCE_RUNNING : PA_SOURCE_IDLE);
252 void pa_source_ping(pa_source *s) {
253 pa_source_assert_ref(s);
254 pa_assert(PA_SOURCE_LINKED(s->state));
256 pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_PING, NULL, 0, NULL, NULL);
259 void pa_source_post(pa_source*s, const pa_memchunk *chunk) {
263 pa_source_assert_ref(s);
264 pa_assert(PA_SOURCE_OPENED(s->thread_info.state));
267 if (s->thread_info.state != PA_SOURCE_RUNNING)
270 if (s->thread_info.soft_muted || !pa_cvolume_is_norm(&s->thread_info.soft_volume)) {
271 pa_memchunk vchunk = *chunk;
273 pa_memblock_ref(vchunk.memblock);
274 pa_memchunk_make_writable(&vchunk, 0);
276 if (s->thread_info.soft_muted || pa_cvolume_is_muted(&s->thread_info.soft_volume))
277 pa_silence_memchunk(&vchunk, &s->sample_spec);
279 pa_volume_memchunk(&vchunk, &s->sample_spec, &s->thread_info.soft_volume);
281 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
282 pa_source_output_push(o, &vchunk);
284 pa_memblock_unref(vchunk.memblock);
287 while ((o = pa_hashmap_iterate(s->thread_info.outputs, &state, NULL)))
288 pa_source_output_push(o, chunk);
292 pa_usec_t pa_source_get_latency(pa_source *s) {
295 pa_source_assert_ref(s);
296 pa_assert(PA_SOURCE_LINKED(s->state));
298 if (!PA_SOURCE_OPENED(s->state))
302 return s->get_latency(s);
304 if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
310 void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) {
313 pa_source_assert_ref(s);
314 pa_assert(PA_SOURCE_LINKED(s->state));
317 changed = !pa_cvolume_equal(volume, &s->volume);
320 if (s->set_volume && s->set_volume(s) < 0)
321 s->set_volume = NULL;
324 pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_VOLUME, pa_xnewdup(struct pa_cvolume, volume, 1), 0, NULL, pa_xfree);
327 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
330 const pa_cvolume *pa_source_get_volume(pa_source *s) {
331 pa_cvolume old_volume;
333 pa_source_assert_ref(s);
334 pa_assert(PA_SOURCE_LINKED(s->state));
336 old_volume = s->volume;
338 if (s->get_volume && s->get_volume(s) < 0)
339 s->get_volume = NULL;
341 if (!s->get_volume && s->refresh_volume)
342 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_VOLUME, &s->volume, 0, NULL);
344 if (!pa_cvolume_equal(&old_volume, &s->volume))
345 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
350 void pa_source_set_mute(pa_source *s, int mute) {
353 pa_source_assert_ref(s);
354 pa_assert(PA_SOURCE_LINKED(s->state));
356 changed = s->muted != mute;
359 if (s->set_mute && s->set_mute(s) < 0)
363 pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_MUTE, PA_UINT_TO_PTR(mute), 0, NULL, NULL);
366 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
369 int pa_source_get_mute(pa_source *s) {
372 pa_source_assert_ref(s);
373 pa_assert(PA_SOURCE_LINKED(s->state));
375 old_muted = s->muted;
377 if (s->get_mute && s->get_mute(s) < 0)
380 if (!s->get_mute && s->refresh_muted)
381 pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_MUTE, &s->muted, 0, NULL);
383 if (old_muted != s->muted)
384 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
389 void pa_source_set_module(pa_source *s, pa_module *m) {
390 pa_source_assert_ref(s);
397 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
400 void pa_source_set_description(pa_source *s, const char *description) {
401 pa_source_assert_ref(s);
403 if (!description && !s->description)
406 if (description && s->description && !strcmp(description, s->description))
409 pa_xfree(s->description);
410 s->description = pa_xstrdup(description);
412 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
415 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q) {
416 pa_source_assert_ref(s);
422 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p) {
423 pa_source_assert_ref(s);
429 unsigned pa_source_used_by(pa_source *s) {
430 pa_source_assert_ref(s);
431 pa_assert(PA_SOURCE_LINKED(s->state));
433 return pa_idxset_size(s->outputs);
436 int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
437 pa_source *s = PA_SOURCE(object);
438 pa_source_assert_ref(s);
439 pa_assert(PA_SOURCE_LINKED(s->thread_info.state));
441 switch ((pa_source_message_t) code) {
442 case PA_SOURCE_MESSAGE_ADD_OUTPUT: {
443 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
444 pa_hashmap_put(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index), pa_source_output_ref(o));
452 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT: {
453 pa_source_output *o = PA_SOURCE_OUTPUT(userdata);
458 if (pa_hashmap_remove(s->thread_info.outputs, PA_UINT32_TO_PTR(o->index)))
459 pa_source_output_unref(o);
464 case PA_SOURCE_MESSAGE_SET_VOLUME:
465 s->thread_info.soft_volume = *((pa_cvolume*) userdata);
468 case PA_SOURCE_MESSAGE_SET_MUTE:
469 s->thread_info.soft_muted = PA_PTR_TO_UINT(userdata);
472 case PA_SOURCE_MESSAGE_GET_VOLUME:
473 *((pa_cvolume*) userdata) = s->thread_info.soft_volume;
476 case PA_SOURCE_MESSAGE_GET_MUTE:
477 *((int*) userdata) = s->thread_info.soft_muted;
480 case PA_SOURCE_MESSAGE_PING:
483 case PA_SOURCE_MESSAGE_SET_STATE:
484 s->thread_info.state = PA_PTR_TO_UINT(userdata);
487 case PA_SOURCE_MESSAGE_GET_LATENCY:
488 case PA_SOURCE_MESSAGE_MAX:
495 int pa_source_suspend_all(pa_core *c, int suspend) {
500 pa_core_assert_ref(c);
502 for (source = PA_SOURCE(pa_idxset_first(c->sources, &idx)); source; source = PA_SOURCE(pa_idxset_next(c->sources, &idx)))
503 ret -= pa_source_suspend(source, suspend) < 0;