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 if (o
->update_source_requested_latency
)
902 o
->update_source_requested_latency(o
);
905 pa_sink_invalidate_requested_latency(s
->monitor_of
);
908 void pa_source_set_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
909 pa_source_assert_ref(s
);
911 /* min_latency == 0: no limit
912 * min_latency == (size_t) -1: default limit
913 * min_latency anything else: specified limit
915 * Similar for max_latency */
917 if (min_latency
== (pa_usec_t
) -1)
918 min_latency
= DEFAULT_MIN_LATENCY
;
920 if (max_latency
== (pa_usec_t
) -1)
921 max_latency
= min_latency
;
923 pa_assert(!min_latency
|| !max_latency
||
924 min_latency
<= max_latency
);
926 if (PA_SINK_IS_LINKED(s
->state
)) {
932 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
934 s
->thread_info
.min_latency
= min_latency
;
935 s
->thread_info
.max_latency
= max_latency
;
937 s
->thread_info
.requested_latency_valid
= FALSE
;
941 void pa_source_get_latency_range(pa_source
*s
, pa_usec_t
*min_latency
, pa_usec_t
*max_latency
) {
942 pa_source_assert_ref(s
);
943 pa_assert(min_latency
);
944 pa_assert(max_latency
);
946 if (PA_SOURCE_IS_LINKED(s
->state
)) {
947 pa_usec_t r
[2] = { 0, 0 };
949 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
954 *min_latency
= s
->thread_info
.min_latency
;
955 *max_latency
= s
->thread_info
.max_latency
;
959 /* Called from IO thread */
960 void pa_source_update_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
964 pa_source_assert_ref(s
);
966 s
->thread_info
.min_latency
= min_latency
;
967 s
->thread_info
.max_latency
= max_latency
;
969 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
970 if (o
->update_source_latency_range
)
971 o
->update_source_latency_range(o
);
973 pa_source_invalidate_requested_latency(s
);
976 size_t pa_source_get_max_rewind(pa_source
*s
) {
978 pa_source_assert_ref(s
);
980 if (!PA_SOURCE_IS_LINKED(s
->state
))
981 return s
->thread_info
.max_rewind
;
983 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MAX_REWIND
, &r
, 0, NULL
) == 0);