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
;
227 pa_source_state_t original_state
;
231 if (s
->state
== state
)
234 original_state
= s
->state
;
237 (original_state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(state
)) ||
238 (PA_SOURCE_IS_OPENED(original_state
) && state
== PA_SOURCE_SUSPENDED
);
241 if ((ret
= s
->set_state(s
, state
)) < 0)
245 if ((ret
= pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
)) < 0) {
248 s
->set_state(s
, original_state
);
255 if (suspend_change
) {
259 /* We're suspending or resuming, tell everyone about it */
261 for (o
= PA_SOURCE_OUTPUT(pa_idxset_first(s
->outputs
, &idx
)); o
; o
= PA_SOURCE_OUTPUT(pa_idxset_next(s
->outputs
, &idx
)))
263 o
->suspend(o
, state
== PA_SINK_SUSPENDED
);
266 if (state
!= PA_SOURCE_UNLINKED
) /* if we enter UNLINKED state pa_source_unlink() will fire the apropriate events */
267 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_STATE_CHANGED
], s
);
272 /* Called from main context */
273 void pa_source_put(pa_source
*s
) {
274 pa_source_assert_ref(s
);
276 pa_assert(s
->state
== PA_SINK_INIT
);
278 /* The following fields must be initialized properly when calling _put() */
279 pa_assert(s
->asyncmsgq
);
280 pa_assert(s
->rtpoll
);
281 pa_assert(!s
->thread_info
.min_latency
|| !s
->thread_info
.max_latency
||
282 s
->thread_info
.min_latency
<= s
->thread_info
.max_latency
);
284 if (!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
)) {
285 s
->flags
|= PA_SOURCE_DECIBEL_VOLUME
;
287 s
->thread_info
.soft_volume
= s
->volume
;
288 s
->thread_info
.soft_muted
= s
->muted
;
291 pa_assert_se(source_set_state(s
, PA_SOURCE_IDLE
) == 0);
293 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_NEW
, s
->index
);
294 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PUT
], s
);
297 /* Called from main context */
298 void pa_source_unlink(pa_source
*s
) {
300 pa_source_output
*o
, *j
= NULL
;
304 /* See pa_sink_unlink() for a couple of comments how this function
307 linked
= PA_SOURCE_IS_LINKED(s
->state
);
310 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK
], s
);
312 if (s
->state
!= PA_SOURCE_UNLINKED
)
313 pa_namereg_unregister(s
->core
, s
->name
);
314 pa_idxset_remove_by_data(s
->core
->sources
, s
, NULL
);
316 while ((o
= pa_idxset_first(s
->outputs
, NULL
))) {
318 pa_source_output_kill(o
);
323 source_set_state(s
, PA_SOURCE_UNLINKED
);
325 s
->state
= PA_SOURCE_UNLINKED
;
330 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_REMOVE
, s
->index
);
331 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK_POST
], s
);
335 /* Called from main context */
336 static void source_free(pa_object
*o
) {
337 pa_source_output
*so
;
338 pa_source
*s
= PA_SOURCE(o
);
341 pa_assert(pa_source_refcnt(s
) == 0);
343 if (PA_SOURCE_IS_LINKED(s
->state
))
346 pa_log_info("Freeing source %u \"%s\"", s
->index
, s
->name
);
348 pa_idxset_free(s
->outputs
, NULL
, NULL
);
350 while ((so
= pa_hashmap_steal_first(s
->thread_info
.outputs
)))
351 pa_source_output_unref(so
);
353 pa_hashmap_free(s
->thread_info
.outputs
, NULL
, NULL
);
355 if (s
->silence
.memblock
)
356 pa_memblock_unref(s
->silence
.memblock
);
362 pa_proplist_free(s
->proplist
);
367 /* Called from main context */
368 void pa_source_set_asyncmsgq(pa_source
*s
, pa_asyncmsgq
*q
) {
369 pa_source_assert_ref(s
);
374 /* Called from main context */
375 void pa_source_set_rtpoll(pa_source
*s
, pa_rtpoll
*p
) {
376 pa_source_assert_ref(s
);
381 /* Called from main context */
382 int pa_source_update_status(pa_source
*s
) {
383 pa_source_assert_ref(s
);
384 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
386 if (s
->state
== PA_SOURCE_SUSPENDED
)
389 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
392 /* Called from main context */
393 int pa_source_suspend(pa_source
*s
, pa_bool_t suspend
) {
394 pa_source_assert_ref(s
);
395 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
398 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
400 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
403 /* Called from IO thread context */
404 void pa_source_process_rewind(pa_source
*s
, size_t nbytes
) {
408 pa_source_assert_ref(s
);
409 pa_assert(PA_SOURCE_IS_OPENED(s
->thread_info
.state
));
414 pa_log_debug("Processing rewind...");
416 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
417 pa_source_output_assert_ref(o
);
418 pa_source_output_process_rewind(o
, nbytes
);
422 /* Called from IO thread context */
423 void pa_source_post(pa_source
*s
, const pa_memchunk
*chunk
) {
427 pa_source_assert_ref(s
);
428 pa_assert(PA_SOURCE_IS_OPENED(s
->thread_info
.state
));
431 if (s
->thread_info
.state
!= PA_SOURCE_RUNNING
)
434 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
435 pa_memchunk vchunk
= *chunk
;
437 pa_memblock_ref(vchunk
.memblock
);
438 pa_memchunk_make_writable(&vchunk
, 0);
440 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
441 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
443 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
445 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
446 pa_source_output_assert_ref(o
);
448 if (!o
->thread_info
.direct_on_input
)
449 pa_source_output_push(o
, &vchunk
);
452 pa_memblock_unref(vchunk
.memblock
);
455 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
456 pa_source_output_assert_ref(o
);
458 if (!o
->thread_info
.direct_on_input
)
459 pa_source_output_push(o
, chunk
);
464 /* Called from IO thread context */
465 void pa_source_post_direct(pa_source
*s
, pa_source_output
*o
, const pa_memchunk
*chunk
) {
466 pa_source_assert_ref(s
);
467 pa_assert(PA_SOURCE_IS_OPENED(s
->thread_info
.state
));
468 pa_source_output_assert_ref(o
);
469 pa_assert(o
->thread_info
.direct_on_input
);
472 if (s
->thread_info
.state
!= PA_SOURCE_RUNNING
)
475 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
476 pa_memchunk vchunk
= *chunk
;
478 pa_memblock_ref(vchunk
.memblock
);
479 pa_memchunk_make_writable(&vchunk
, 0);
481 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
482 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
484 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
486 pa_source_output_push(o
, &vchunk
);
488 pa_memblock_unref(vchunk
.memblock
);
490 pa_source_output_push(o
, chunk
);
493 /* Called from main thread */
494 pa_usec_t
pa_source_get_latency(pa_source
*s
) {
497 pa_source_assert_ref(s
);
498 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
500 if (!PA_SOURCE_IS_OPENED(s
->state
))
503 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) == 0);
508 /* Called from main thread */
509 void pa_source_set_volume(pa_source
*s
, const pa_cvolume
*volume
) {
512 pa_source_assert_ref(s
);
513 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
516 changed
= !pa_cvolume_equal(volume
, &s
->volume
);
519 if (s
->set_volume
&& s
->set_volume(s
) < 0)
520 s
->set_volume
= NULL
;
523 pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME
, volume
, 0, NULL
);
526 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
529 /* Called from main thread */
530 const pa_cvolume
*pa_source_get_volume(pa_source
*s
) {
531 pa_source_assert_ref(s
);
532 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
534 if (s
->refresh_volume
) {
535 pa_cvolume old_volume
= s
->volume
;
537 if (s
->get_volume
&& s
->get_volume(s
) < 0)
538 s
->get_volume
= NULL
;
541 pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_VOLUME
, &s
->volume
, 0, NULL
);
543 if (!pa_cvolume_equal(&old_volume
, &s
->volume
))
544 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
550 /* Called from main thread */
551 void pa_source_set_mute(pa_source
*s
, pa_bool_t mute
) {
554 pa_source_assert_ref(s
);
555 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
557 changed
= s
->muted
!= mute
;
560 if (s
->set_mute
&& s
->set_mute(s
) < 0)
564 pa_asyncmsgq_post(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, PA_UINT_TO_PTR(mute
), 0, NULL
, NULL
);
567 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
570 /* Called from main thread */
571 pa_bool_t
pa_source_get_mute(pa_source
*s
) {
573 pa_source_assert_ref(s
);
574 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
576 if (s
->refresh_muted
) {
577 pa_bool_t old_muted
= s
->muted
;
579 if (s
->get_mute
&& s
->get_mute(s
) < 0)
583 pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MUTE
, &s
->muted
, 0, NULL
);
585 if (old_muted
!= s
->muted
)
586 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
592 /* Called from main thread */
593 void pa_source_set_description(pa_source
*s
, const char *description
) {
595 pa_source_assert_ref(s
);
597 if (!description
&& !pa_proplist_contains(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
))
600 old
= pa_proplist_gets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
602 if (old
&& description
&& !strcmp(old
, description
))
606 pa_proplist_sets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
, description
);
608 pa_proplist_unset(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
610 if (PA_SOURCE_IS_LINKED(s
->state
)) {
611 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
612 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
616 /* Called from main thread */
617 unsigned pa_source_linked_by(pa_source
*s
) {
618 pa_source_assert_ref(s
);
619 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
621 return pa_idxset_size(s
->outputs
);
624 /* Called from main thread */
625 unsigned pa_source_used_by(pa_source
*s
) {
628 pa_source_assert_ref(s
);
629 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
631 ret
= pa_idxset_size(s
->outputs
);
632 pa_assert(ret
>= s
->n_corked
);
634 return ret
- s
->n_corked
;
637 /* Called from IO thread, except when it is not */
638 int pa_source_process_msg(pa_msgobject
*object
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
639 pa_source
*s
= PA_SOURCE(object
);
640 pa_source_assert_ref(s
);
642 switch ((pa_source_message_t
) code
) {
644 case PA_SOURCE_MESSAGE_ADD_OUTPUT
: {
645 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
647 pa_hashmap_put(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
), pa_source_output_ref(o
));
649 if (o
->direct_on_input
) {
650 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
651 pa_hashmap_put(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
), o
);
654 pa_assert(!o
->thread_info
.attached
);
655 o
->thread_info
.attached
= TRUE
;
660 pa_source_output_set_state_within_thread(o
, o
->state
);
662 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
664 /* We don't just invalidate the requested latency here,
665 * because if we are in a move we might need to fix up the
666 * requested latency. */
667 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
672 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT
: {
673 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
675 pa_source_output_set_state_within_thread(o
, o
->state
);
680 pa_assert(o
->thread_info
.attached
);
681 o
->thread_info
.attached
= FALSE
;
683 if (o
->thread_info
.direct_on_input
) {
684 pa_hashmap_remove(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
));
685 o
->thread_info
.direct_on_input
= NULL
;
688 if (pa_hashmap_remove(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
)))
689 pa_source_output_unref(o
);
691 pa_source_invalidate_requested_latency(s
);
696 case PA_SOURCE_MESSAGE_SET_VOLUME
:
697 s
->thread_info
.soft_volume
= *((pa_cvolume
*) userdata
);
700 case PA_SOURCE_MESSAGE_SET_MUTE
:
701 s
->thread_info
.soft_muted
= PA_PTR_TO_UINT(userdata
);
704 case PA_SOURCE_MESSAGE_GET_VOLUME
:
705 *((pa_cvolume
*) userdata
) = s
->thread_info
.soft_volume
;
708 case PA_SOURCE_MESSAGE_GET_MUTE
:
709 *((pa_bool_t
*) userdata
) = s
->thread_info
.soft_muted
;
712 case PA_SOURCE_MESSAGE_SET_STATE
:
713 s
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
716 case PA_SOURCE_MESSAGE_DETACH
:
718 /* Detach all streams */
719 pa_source_detach_within_thread(s
);
722 case PA_SOURCE_MESSAGE_ATTACH
:
724 /* Reattach all streams */
725 pa_source_attach_within_thread(s
);
728 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
: {
730 pa_usec_t
*usec
= userdata
;
731 *usec
= pa_source_get_requested_latency_within_thread(s
);
733 if (*usec
== (pa_usec_t
) -1)
734 *usec
= s
->thread_info
.max_latency
;
739 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
: {
740 pa_usec_t
*r
= userdata
;
742 pa_source_update_latency_range(s
, r
[0], r
[1]);
747 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
: {
748 pa_usec_t
*r
= userdata
;
750 r
[0] = s
->thread_info
.min_latency
;
751 r
[1] = s
->thread_info
.max_latency
;
756 case PA_SOURCE_MESSAGE_GET_MAX_REWIND
:
758 *((size_t*) userdata
) = s
->thread_info
.max_rewind
;
761 case PA_SOURCE_MESSAGE_GET_LATENCY
:
764 *((pa_usec_t
*) userdata
) = 0;
768 /* Implementors need to overwrite this implementation! */
771 case PA_SOURCE_MESSAGE_MAX
:
778 /* Called from main thread */
779 int pa_source_suspend_all(pa_core
*c
, pa_bool_t suspend
) {
784 pa_core_assert_ref(c
);
786 for (source
= PA_SOURCE(pa_idxset_first(c
->sources
, &idx
)); source
; source
= PA_SOURCE(pa_idxset_next(c
->sources
, &idx
)))
787 ret
-= pa_source_suspend(source
, suspend
) < 0;
792 /* Called from main thread */
793 void pa_source_detach(pa_source
*s
) {
794 pa_source_assert_ref(s
);
795 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
797 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_DETACH
, NULL
, 0, NULL
) == 0);
800 /* Called from main thread */
801 void pa_source_attach(pa_source
*s
) {
802 pa_source_assert_ref(s
);
803 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
805 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_ATTACH
, NULL
, 0, NULL
) == 0);
808 /* Called from IO thread */
809 void pa_source_detach_within_thread(pa_source
*s
) {
813 pa_source_assert_ref(s
);
814 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
816 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
821 /* Called from IO thread */
822 void pa_source_attach_within_thread(pa_source
*s
) {
826 pa_source_assert_ref(s
);
827 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
829 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
834 /* Called from IO thread */
835 pa_usec_t
pa_source_get_requested_latency_within_thread(pa_source
*s
) {
836 pa_usec_t result
= (pa_usec_t
) -1;
840 pa_source_assert_ref(s
);
842 if (s
->thread_info
.requested_latency_valid
)
843 return s
->thread_info
.requested_latency
;
845 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
847 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1 &&
848 (result
== (pa_usec_t
) -1 || result
> o
->thread_info
.requested_source_latency
))
849 result
= o
->thread_info
.requested_source_latency
;
851 if (result
!= (pa_usec_t
) -1) {
852 if (s
->thread_info
.max_latency
> 0 && result
> s
->thread_info
.max_latency
)
853 result
= s
->thread_info
.max_latency
;
855 if (s
->thread_info
.min_latency
> 0 && result
< s
->thread_info
.min_latency
)
856 result
= s
->thread_info
.min_latency
;
859 s
->thread_info
.requested_latency
= result
;
860 s
->thread_info
.requested_latency_valid
= TRUE
;
865 /* Called from main thread */
866 pa_usec_t
pa_source_get_requested_latency(pa_source
*s
) {
869 pa_source_assert_ref(s
);
870 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
872 if (!PA_SOURCE_IS_OPENED(s
->state
))
875 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
880 /* Called from IO thread */
881 void pa_source_set_max_rewind(pa_source
*s
, size_t max_rewind
) {
885 pa_source_assert_ref(s
);
887 if (max_rewind
== s
->thread_info
.max_rewind
)
890 s
->thread_info
.max_rewind
= max_rewind
;
892 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
893 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
894 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
898 void pa_source_invalidate_requested_latency(pa_source
*s
) {
902 pa_source_assert_ref(s
);
904 s
->thread_info
.requested_latency_valid
= FALSE
;
906 if (s
->update_requested_latency
)
907 s
->update_requested_latency(s
);
909 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
910 if (o
->update_source_requested_latency
)
911 o
->update_source_requested_latency(o
);
914 pa_sink_invalidate_requested_latency(s
->monitor_of
);
917 void pa_source_set_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
918 pa_source_assert_ref(s
);
920 /* min_latency == 0: no limit
921 * min_latency == (size_t) -1: default limit
922 * min_latency anything else: specified limit
924 * Similar for max_latency */
926 if (min_latency
== (pa_usec_t
) -1)
927 min_latency
= DEFAULT_MIN_LATENCY
;
929 if (max_latency
== (pa_usec_t
) -1)
930 max_latency
= min_latency
;
932 pa_assert(!min_latency
|| !max_latency
||
933 min_latency
<= max_latency
);
935 if (PA_SINK_IS_LINKED(s
->state
)) {
941 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
943 s
->thread_info
.min_latency
= min_latency
;
944 s
->thread_info
.max_latency
= max_latency
;
946 s
->thread_info
.requested_latency_valid
= FALSE
;
950 void pa_source_get_latency_range(pa_source
*s
, pa_usec_t
*min_latency
, pa_usec_t
*max_latency
) {
951 pa_source_assert_ref(s
);
952 pa_assert(min_latency
);
953 pa_assert(max_latency
);
955 if (PA_SOURCE_IS_LINKED(s
->state
)) {
956 pa_usec_t r
[2] = { 0, 0 };
958 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
963 *min_latency
= s
->thread_info
.min_latency
;
964 *max_latency
= s
->thread_info
.max_latency
;
968 /* Called from IO thread */
969 void pa_source_update_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
973 pa_source_assert_ref(s
);
975 s
->thread_info
.min_latency
= min_latency
;
976 s
->thread_info
.max_latency
= max_latency
;
978 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
979 if (o
->update_source_latency_range
)
980 o
->update_source_latency_range(o
);
982 pa_source_invalidate_requested_latency(s
);
985 size_t pa_source_get_max_rewind(pa_source
*s
) {
987 pa_source_assert_ref(s
);
989 if (!PA_SOURCE_IS_LINKED(s
->state
))
990 return s
->thread_info
.max_rewind
;
992 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MAX_REWIND
, &r
, 0, NULL
) == 0);