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 2.1 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
30 #include <pulse/format.h>
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/timeval.h>
34 #include <pulse/util.h>
35 #include <pulse/rtclock.h>
36 #include <pulse/internal.h>
38 #include <pulsecore/core-util.h>
39 #include <pulsecore/source-output.h>
40 #include <pulsecore/namereg.h>
41 #include <pulsecore/core-subscribe.h>
42 #include <pulsecore/log.h>
43 #include <pulsecore/sample-util.h>
44 #include <pulsecore/flist.h>
48 #define ABSOLUTE_MIN_LATENCY (500)
49 #define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
50 #define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
52 PA_DEFINE_PUBLIC_CLASS(pa_source
, pa_msgobject
);
54 struct pa_source_volume_change
{
58 PA_LLIST_FIELDS(pa_source_volume_change
);
61 struct source_message_set_port
{
66 static void source_free(pa_object
*o
);
68 static void pa_source_volume_change_push(pa_source
*s
);
69 static void pa_source_volume_change_flush(pa_source
*s
);
71 pa_source_new_data
* pa_source_new_data_init(pa_source_new_data
*data
) {
75 data
->proplist
= pa_proplist_new();
80 void pa_source_new_data_set_name(pa_source_new_data
*data
, const char *name
) {
84 data
->name
= pa_xstrdup(name
);
87 void pa_source_new_data_set_sample_spec(pa_source_new_data
*data
, const pa_sample_spec
*spec
) {
90 if ((data
->sample_spec_is_set
= !!spec
))
91 data
->sample_spec
= *spec
;
94 void pa_source_new_data_set_channel_map(pa_source_new_data
*data
, const pa_channel_map
*map
) {
97 if ((data
->channel_map_is_set
= !!map
))
98 data
->channel_map
= *map
;
101 void pa_source_new_data_set_volume(pa_source_new_data
*data
, const pa_cvolume
*volume
) {
104 if ((data
->volume_is_set
= !!volume
))
105 data
->volume
= *volume
;
108 void pa_source_new_data_set_muted(pa_source_new_data
*data
, pa_bool_t mute
) {
111 data
->muted_is_set
= TRUE
;
112 data
->muted
= !!mute
;
115 void pa_source_new_data_set_port(pa_source_new_data
*data
, const char *port
) {
118 pa_xfree(data
->active_port
);
119 data
->active_port
= pa_xstrdup(port
);
122 void pa_source_new_data_done(pa_source_new_data
*data
) {
125 pa_proplist_free(data
->proplist
);
130 while ((p
= pa_hashmap_steal_first(data
->ports
)))
131 pa_device_port_free(p
);
133 pa_hashmap_free(data
->ports
, NULL
, NULL
);
136 pa_xfree(data
->name
);
137 pa_xfree(data
->active_port
);
140 /* Called from main context */
141 static void reset_callbacks(pa_source
*s
) {
145 s
->get_volume
= NULL
;
146 s
->set_volume
= NULL
;
147 s
->write_volume
= NULL
;
150 s
->update_requested_latency
= NULL
;
152 s
->get_formats
= NULL
;
155 /* Called from main context */
156 pa_source
* pa_source_new(
158 pa_source_new_data
*data
,
159 pa_source_flags_t flags
) {
163 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
168 pa_assert(data
->name
);
169 pa_assert_ctl_context();
171 s
= pa_msgobject_new(pa_source
);
173 if (!(name
= pa_namereg_register(core
, data
->name
, PA_NAMEREG_SOURCE
, s
, data
->namereg_fail
))) {
174 pa_log_debug("Failed to register name %s.", data
->name
);
179 pa_source_new_data_set_name(data
, name
);
181 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_NEW
], data
) < 0) {
183 pa_namereg_unregister(core
, name
);
187 /* FIXME, need to free s here on failure */
189 pa_return_null_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
));
190 pa_return_null_if_fail(data
->name
&& pa_utf8_valid(data
->name
) && data
->name
[0]);
192 pa_return_null_if_fail(data
->sample_spec_is_set
&& pa_sample_spec_valid(&data
->sample_spec
));
194 if (!data
->channel_map_is_set
)
195 pa_return_null_if_fail(pa_channel_map_init_auto(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
));
197 pa_return_null_if_fail(pa_channel_map_valid(&data
->channel_map
));
198 pa_return_null_if_fail(data
->channel_map
.channels
== data
->sample_spec
.channels
);
200 /* FIXME: There should probably be a general function for checking whether
201 * the source volume is allowed to be set, like there is for source outputs. */
202 pa_assert(!data
->volume_is_set
|| !(flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
204 if (!data
->volume_is_set
) {
205 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
206 data
->save_volume
= FALSE
;
209 pa_return_null_if_fail(pa_cvolume_valid(&data
->volume
));
210 pa_return_null_if_fail(pa_cvolume_compatible(&data
->volume
, &data
->sample_spec
));
212 if (!data
->muted_is_set
)
216 pa_proplist_update(data
->proplist
, PA_UPDATE_MERGE
, data
->card
->proplist
);
218 pa_device_init_description(data
->proplist
);
219 pa_device_init_icon(data
->proplist
, FALSE
);
220 pa_device_init_intended_roles(data
->proplist
);
222 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_FIXATE
], data
) < 0) {
224 pa_namereg_unregister(core
, name
);
228 s
->parent
.parent
.free
= source_free
;
229 s
->parent
.process_msg
= pa_source_process_msg
;
232 s
->state
= PA_SOURCE_INIT
;
235 s
->suspend_cause
= 0;
236 s
->name
= pa_xstrdup(name
);
237 s
->proplist
= pa_proplist_copy(data
->proplist
);
238 s
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
239 s
->module
= data
->module
;
240 s
->card
= data
->card
;
242 s
->priority
= pa_device_init_priority(s
->proplist
);
244 s
->sample_spec
= data
->sample_spec
;
245 s
->channel_map
= data
->channel_map
;
247 s
->outputs
= pa_idxset_new(NULL
, NULL
);
249 s
->monitor_of
= NULL
;
250 s
->output_from_master
= NULL
;
252 s
->reference_volume
= s
->real_volume
= data
->volume
;
253 pa_cvolume_reset(&s
->soft_volume
, s
->sample_spec
.channels
);
254 s
->base_volume
= PA_VOLUME_NORM
;
255 s
->n_volume_steps
= PA_VOLUME_NORM
+1;
256 s
->muted
= data
->muted
;
257 s
->refresh_volume
= s
->refresh_muted
= FALSE
;
264 /* As a minor optimization we just steal the list instead of
266 s
->ports
= data
->ports
;
269 s
->active_port
= NULL
;
270 s
->save_port
= FALSE
;
272 if (data
->active_port
&& s
->ports
)
273 if ((s
->active_port
= pa_hashmap_get(s
->ports
, data
->active_port
)))
274 s
->save_port
= data
->save_port
;
276 if (!s
->active_port
&& s
->ports
) {
280 PA_HASHMAP_FOREACH(p
, s
->ports
, state
)
281 if (!s
->active_port
|| p
->priority
> s
->active_port
->priority
)
285 s
->save_volume
= data
->save_volume
;
286 s
->save_muted
= data
->save_muted
;
288 pa_silence_memchunk_get(
289 &core
->silence_cache
,
295 s
->thread_info
.rtpoll
= NULL
;
296 s
->thread_info
.outputs
= pa_hashmap_new(pa_idxset_trivial_hash_func
, pa_idxset_trivial_compare_func
);
297 s
->thread_info
.soft_volume
= s
->soft_volume
;
298 s
->thread_info
.soft_muted
= s
->muted
;
299 s
->thread_info
.state
= s
->state
;
300 s
->thread_info
.max_rewind
= 0;
301 s
->thread_info
.requested_latency_valid
= FALSE
;
302 s
->thread_info
.requested_latency
= 0;
303 s
->thread_info
.min_latency
= ABSOLUTE_MIN_LATENCY
;
304 s
->thread_info
.max_latency
= ABSOLUTE_MAX_LATENCY
;
305 s
->thread_info
.fixed_latency
= flags
& PA_SOURCE_DYNAMIC_LATENCY
? 0 : DEFAULT_FIXED_LATENCY
;
307 PA_LLIST_HEAD_INIT(pa_source_volume_change
, s
->thread_info
.volume_changes
);
308 s
->thread_info
.volume_changes_tail
= NULL
;
309 pa_sw_cvolume_multiply(&s
->thread_info
.current_hw_volume
, &s
->soft_volume
, &s
->real_volume
);
310 s
->thread_info
.volume_change_safety_margin
= core
->deferred_volume_safety_margin_usec
;
311 s
->thread_info
.volume_change_extra_delay
= core
->deferred_volume_extra_delay_usec
;
313 /* FIXME: This should probably be moved to pa_source_put() */
314 pa_assert_se(pa_idxset_put(core
->sources
, s
, &s
->index
) >= 0);
317 pa_assert_se(pa_idxset_put(s
->card
->sources
, s
, NULL
) >= 0);
319 pt
= pa_proplist_to_string_sep(s
->proplist
, "\n ");
320 pa_log_info("Created source %u \"%s\" with sample spec %s and channel map %s\n %s",
323 pa_sample_spec_snprint(st
, sizeof(st
), &s
->sample_spec
),
324 pa_channel_map_snprint(cm
, sizeof(cm
), &s
->channel_map
),
331 /* Called from main context */
332 static int source_set_state(pa_source
*s
, pa_source_state_t state
) {
334 pa_bool_t suspend_change
;
335 pa_source_state_t original_state
;
338 pa_assert_ctl_context();
340 if (s
->state
== state
)
343 original_state
= s
->state
;
346 (original_state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(state
)) ||
347 (PA_SOURCE_IS_OPENED(original_state
) && state
== PA_SOURCE_SUSPENDED
);
350 if ((ret
= s
->set_state(s
, state
)) < 0)
354 if ((ret
= pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
)) < 0) {
357 s
->set_state(s
, original_state
);
364 if (state
!= PA_SOURCE_UNLINKED
) { /* if we enter UNLINKED state pa_source_unlink() will fire the appropriate events */
365 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_STATE_CHANGED
], s
);
366 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
369 if (suspend_change
) {
373 /* We're suspending or resuming, tell everyone about it */
375 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
)
376 if (s
->state
== PA_SOURCE_SUSPENDED
&&
377 (o
->flags
& PA_SOURCE_OUTPUT_KILL_ON_SUSPEND
))
378 pa_source_output_kill(o
);
380 o
->suspend(o
, state
== PA_SOURCE_SUSPENDED
);
386 void pa_source_set_get_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
392 void pa_source_set_set_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
393 pa_source_flags_t flags
;
396 pa_assert(!s
->write_volume
|| cb
);
400 /* Save the current flags so we can tell if they've changed */
404 /* The source implementor is responsible for setting decibel volume support */
405 s
->flags
|= PA_SOURCE_HW_VOLUME_CTRL
;
407 s
->flags
&= ~PA_SOURCE_HW_VOLUME_CTRL
;
408 /* See note below in pa_source_put() about volume sharing and decibel volumes */
409 pa_source_enable_decibel_volume(s
, !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
412 /* If the flags have changed after init, let any clients know via a change event */
413 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
414 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
417 void pa_source_set_write_volume_callback(pa_source
*s
, pa_source_cb_t cb
) {
418 pa_source_flags_t flags
;
421 pa_assert(!cb
|| s
->set_volume
);
423 s
->write_volume
= cb
;
425 /* Save the current flags so we can tell if they've changed */
429 s
->flags
|= PA_SOURCE_DEFERRED_VOLUME
;
431 s
->flags
&= ~PA_SOURCE_DEFERRED_VOLUME
;
433 /* If the flags have changed after init, let any clients know via a change event */
434 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
435 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
438 void pa_source_set_get_mute_callback(pa_source
*s
, pa_source_cb_t cb
) {
444 void pa_source_set_set_mute_callback(pa_source
*s
, pa_source_cb_t cb
) {
445 pa_source_flags_t flags
;
451 /* Save the current flags so we can tell if they've changed */
455 s
->flags
|= PA_SOURCE_HW_MUTE_CTRL
;
457 s
->flags
&= ~PA_SOURCE_HW_MUTE_CTRL
;
459 /* If the flags have changed after init, let any clients know via a change event */
460 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
461 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
464 static void enable_flat_volume(pa_source
*s
, pa_bool_t enable
) {
465 pa_source_flags_t flags
;
469 /* Always follow the overall user preference here */
470 enable
= enable
&& s
->core
->flat_volumes
;
472 /* Save the current flags so we can tell if they've changed */
476 s
->flags
|= PA_SOURCE_FLAT_VOLUME
;
478 s
->flags
&= ~PA_SOURCE_FLAT_VOLUME
;
480 /* If the flags have changed after init, let any clients know via a change event */
481 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
482 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
485 void pa_source_enable_decibel_volume(pa_source
*s
, pa_bool_t enable
) {
486 pa_source_flags_t flags
;
490 /* Save the current flags so we can tell if they've changed */
494 s
->flags
|= PA_SOURCE_DECIBEL_VOLUME
;
495 enable_flat_volume(s
, TRUE
);
497 s
->flags
&= ~PA_SOURCE_DECIBEL_VOLUME
;
498 enable_flat_volume(s
, FALSE
);
501 /* If the flags have changed after init, let any clients know via a change event */
502 if (s
->state
!= PA_SOURCE_INIT
&& flags
!= s
->flags
)
503 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
506 /* Called from main context */
507 void pa_source_put(pa_source
*s
) {
508 pa_source_assert_ref(s
);
509 pa_assert_ctl_context();
511 pa_assert(s
->state
== PA_SOURCE_INIT
);
512 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) || s
->output_from_master
);
514 /* The following fields must be initialized properly when calling _put() */
515 pa_assert(s
->asyncmsgq
);
516 pa_assert(s
->thread_info
.min_latency
<= s
->thread_info
.max_latency
);
518 /* Generally, flags should be initialized via pa_source_new(). As a
519 * special exception we allow some volume related flags to be set
520 * between _new() and _put() by the callback setter functions above.
522 * Thus we implement a couple safeguards here which ensure the above
523 * setters were used (or at least the implementor made manual changes
524 * in a compatible way).
526 * Note: All of these flags set here can change over the life time
528 pa_assert(!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
) || s
->set_volume
);
529 pa_assert(!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) || s
->write_volume
);
530 pa_assert(!(s
->flags
& PA_SOURCE_HW_MUTE_CTRL
) || s
->set_mute
);
532 /* XXX: Currently decibel volume is disabled for all sources that use volume
533 * sharing. When the master source supports decibel volume, it would be good
534 * to have the flag also in the filter source, but currently we don't do that
535 * so that the flags of the filter source never change when it's moved from
536 * a master source to another. One solution for this problem would be to
537 * remove user-visible volume altogether from filter sources when volume
538 * sharing is used, but the current approach was easier to implement... */
539 /* We always support decibel volumes in software, otherwise we leave it to
540 * the source implementor to set this flag as needed.
542 * Note: This flag can also change over the life time of the source. */
543 if (!(s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
) && !(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
544 pa_source_enable_decibel_volume(s
, TRUE
);
546 /* If the source implementor support DB volumes by itself, we should always
547 * try and enable flat volumes too */
548 if ((s
->flags
& PA_SOURCE_DECIBEL_VOLUME
))
549 enable_flat_volume(s
, TRUE
);
551 if (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) {
552 pa_source
*root_source
= pa_source_get_master(s
);
554 pa_assert(PA_LIKELY(root_source
));
556 s
->reference_volume
= root_source
->reference_volume
;
557 pa_cvolume_remap(&s
->reference_volume
, &root_source
->channel_map
, &s
->channel_map
);
559 s
->real_volume
= root_source
->real_volume
;
560 pa_cvolume_remap(&s
->real_volume
, &root_source
->channel_map
, &s
->channel_map
);
562 /* We assume that if the sink implementor changed the default
563 * volume he did so in real_volume, because that is the usual
564 * place where he is supposed to place his changes. */
565 s
->reference_volume
= s
->real_volume
;
567 s
->thread_info
.soft_volume
= s
->soft_volume
;
568 s
->thread_info
.soft_muted
= s
->muted
;
569 pa_sw_cvolume_multiply(&s
->thread_info
.current_hw_volume
, &s
->soft_volume
, &s
->real_volume
);
571 pa_assert((s
->flags
& PA_SOURCE_HW_VOLUME_CTRL
)
572 || (s
->base_volume
== PA_VOLUME_NORM
573 && ((s
->flags
& PA_SOURCE_DECIBEL_VOLUME
|| (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)))));
574 pa_assert(!(s
->flags
& PA_SOURCE_DECIBEL_VOLUME
) || s
->n_volume_steps
== PA_VOLUME_NORM
+1);
575 pa_assert(!(s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) == (s
->thread_info
.fixed_latency
!= 0));
577 pa_assert_se(source_set_state(s
, PA_SOURCE_IDLE
) == 0);
579 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_NEW
, s
->index
);
580 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PUT
], s
);
583 /* Called from main context */
584 void pa_source_unlink(pa_source
*s
) {
586 pa_source_output
*o
, *j
= NULL
;
589 pa_assert_ctl_context();
591 /* See pa_sink_unlink() for a couple of comments how this function
594 linked
= PA_SOURCE_IS_LINKED(s
->state
);
597 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK
], s
);
599 if (s
->state
!= PA_SOURCE_UNLINKED
)
600 pa_namereg_unregister(s
->core
, s
->name
);
601 pa_idxset_remove_by_data(s
->core
->sources
, s
, NULL
);
604 pa_idxset_remove_by_data(s
->card
->sources
, s
, NULL
);
606 while ((o
= pa_idxset_first(s
->outputs
, NULL
))) {
608 pa_source_output_kill(o
);
613 source_set_state(s
, PA_SOURCE_UNLINKED
);
615 s
->state
= PA_SOURCE_UNLINKED
;
620 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
| PA_SUBSCRIPTION_EVENT_REMOVE
, s
->index
);
621 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_UNLINK_POST
], s
);
625 /* Called from main context */
626 static void source_free(pa_object
*o
) {
627 pa_source_output
*so
;
628 pa_source
*s
= PA_SOURCE(o
);
631 pa_assert_ctl_context();
632 pa_assert(pa_source_refcnt(s
) == 0);
634 if (PA_SOURCE_IS_LINKED(s
->state
))
637 pa_log_info("Freeing source %u \"%s\"", s
->index
, s
->name
);
639 pa_idxset_free(s
->outputs
, NULL
, NULL
);
641 while ((so
= pa_hashmap_steal_first(s
->thread_info
.outputs
)))
642 pa_source_output_unref(so
);
644 pa_hashmap_free(s
->thread_info
.outputs
, NULL
, NULL
);
646 if (s
->silence
.memblock
)
647 pa_memblock_unref(s
->silence
.memblock
);
653 pa_proplist_free(s
->proplist
);
658 while ((p
= pa_hashmap_steal_first(s
->ports
)))
659 pa_device_port_free(p
);
661 pa_hashmap_free(s
->ports
, NULL
, NULL
);
667 /* Called from main context, and not while the IO thread is active, please */
668 void pa_source_set_asyncmsgq(pa_source
*s
, pa_asyncmsgq
*q
) {
669 pa_source_assert_ref(s
);
670 pa_assert_ctl_context();
675 /* Called from main context, and not while the IO thread is active, please */
676 void pa_source_update_flags(pa_source
*s
, pa_source_flags_t mask
, pa_source_flags_t value
) {
677 pa_source_assert_ref(s
);
678 pa_assert_ctl_context();
683 /* For now, allow only a minimal set of flags to be changed. */
684 pa_assert((mask
& ~(PA_SOURCE_DYNAMIC_LATENCY
|PA_SOURCE_LATENCY
)) == 0);
686 s
->flags
= (s
->flags
& ~mask
) | (value
& mask
);
689 /* Called from IO context, or before _put() from main context */
690 void pa_source_set_rtpoll(pa_source
*s
, pa_rtpoll
*p
) {
691 pa_source_assert_ref(s
);
692 pa_source_assert_io_context(s
);
694 s
->thread_info
.rtpoll
= p
;
697 /* Called from main context */
698 int pa_source_update_status(pa_source
*s
) {
699 pa_source_assert_ref(s
);
700 pa_assert_ctl_context();
701 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
703 if (s
->state
== PA_SOURCE_SUSPENDED
)
706 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
709 /* Called from main context */
710 int pa_source_suspend(pa_source
*s
, pa_bool_t suspend
, pa_suspend_cause_t cause
) {
711 pa_source_assert_ref(s
);
712 pa_assert_ctl_context();
713 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
714 pa_assert(cause
!= 0);
716 if (s
->monitor_of
&& cause
!= PA_SUSPEND_PASSTHROUGH
)
717 return -PA_ERR_NOTSUPPORTED
;
720 s
->suspend_cause
|= cause
;
722 s
->suspend_cause
&= ~cause
;
724 if ((pa_source_get_state(s
) == PA_SOURCE_SUSPENDED
) == !!s
->suspend_cause
)
727 pa_log_debug("Suspend cause of source %s is 0x%04x, %s", s
->name
, s
->suspend_cause
, s
->suspend_cause
? "suspending" : "resuming");
729 if (s
->suspend_cause
)
730 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
732 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
735 /* Called from main context */
736 int pa_source_sync_suspend(pa_source
*s
) {
737 pa_sink_state_t state
;
739 pa_source_assert_ref(s
);
740 pa_assert_ctl_context();
741 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
742 pa_assert(s
->monitor_of
);
744 state
= pa_sink_get_state(s
->monitor_of
);
746 if (state
== PA_SINK_SUSPENDED
)
747 return source_set_state(s
, PA_SOURCE_SUSPENDED
);
749 pa_assert(PA_SINK_IS_OPENED(state
));
751 return source_set_state(s
, pa_source_used_by(s
) ? PA_SOURCE_RUNNING
: PA_SOURCE_IDLE
);
754 /* Called from main context */
755 pa_queue
*pa_source_move_all_start(pa_source
*s
, pa_queue
*q
) {
756 pa_source_output
*o
, *n
;
759 pa_source_assert_ref(s
);
760 pa_assert_ctl_context();
761 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
766 for (o
= PA_SOURCE_OUTPUT(pa_idxset_first(s
->outputs
, &idx
)); o
; o
= n
) {
767 n
= PA_SOURCE_OUTPUT(pa_idxset_next(s
->outputs
, &idx
));
769 pa_source_output_ref(o
);
771 if (pa_source_output_start_move(o
) >= 0)
774 pa_source_output_unref(o
);
780 /* Called from main context */
781 void pa_source_move_all_finish(pa_source
*s
, pa_queue
*q
, pa_bool_t save
) {
784 pa_source_assert_ref(s
);
785 pa_assert_ctl_context();
786 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
789 while ((o
= PA_SOURCE_OUTPUT(pa_queue_pop(q
)))) {
790 if (pa_source_output_finish_move(o
, s
, save
) < 0)
791 pa_source_output_fail_move(o
);
793 pa_source_output_unref(o
);
796 pa_queue_free(q
, NULL
, NULL
);
799 /* Called from main context */
800 void pa_source_move_all_fail(pa_queue
*q
) {
803 pa_assert_ctl_context();
806 while ((o
= PA_SOURCE_OUTPUT(pa_queue_pop(q
)))) {
807 pa_source_output_fail_move(o
);
808 pa_source_output_unref(o
);
811 pa_queue_free(q
, NULL
, NULL
);
814 /* Called from IO thread context */
815 void pa_source_process_rewind(pa_source
*s
, size_t nbytes
) {
819 pa_source_assert_ref(s
);
820 pa_source_assert_io_context(s
);
821 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
826 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
829 pa_log_debug("Processing rewind...");
831 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
832 pa_source_output_assert_ref(o
);
833 pa_source_output_process_rewind(o
, nbytes
);
837 /* Called from IO thread context */
838 void pa_source_post(pa_source
*s
, const pa_memchunk
*chunk
) {
842 pa_source_assert_ref(s
);
843 pa_source_assert_io_context(s
);
844 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
847 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
850 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
851 pa_memchunk vchunk
= *chunk
;
853 pa_memblock_ref(vchunk
.memblock
);
854 pa_memchunk_make_writable(&vchunk
, 0);
856 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
857 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
859 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
861 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
862 pa_source_output_assert_ref(o
);
864 if (!o
->thread_info
.direct_on_input
)
865 pa_source_output_push(o
, &vchunk
);
868 pa_memblock_unref(vchunk
.memblock
);
871 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
))) {
872 pa_source_output_assert_ref(o
);
874 if (!o
->thread_info
.direct_on_input
)
875 pa_source_output_push(o
, chunk
);
880 /* Called from IO thread context */
881 void pa_source_post_direct(pa_source
*s
, pa_source_output
*o
, const pa_memchunk
*chunk
) {
882 pa_source_assert_ref(s
);
883 pa_source_assert_io_context(s
);
884 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
885 pa_source_output_assert_ref(o
);
886 pa_assert(o
->thread_info
.direct_on_input
);
889 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
892 if (s
->thread_info
.soft_muted
|| !pa_cvolume_is_norm(&s
->thread_info
.soft_volume
)) {
893 pa_memchunk vchunk
= *chunk
;
895 pa_memblock_ref(vchunk
.memblock
);
896 pa_memchunk_make_writable(&vchunk
, 0);
898 if (s
->thread_info
.soft_muted
|| pa_cvolume_is_muted(&s
->thread_info
.soft_volume
))
899 pa_silence_memchunk(&vchunk
, &s
->sample_spec
);
901 pa_volume_memchunk(&vchunk
, &s
->sample_spec
, &s
->thread_info
.soft_volume
);
903 pa_source_output_push(o
, &vchunk
);
905 pa_memblock_unref(vchunk
.memblock
);
907 pa_source_output_push(o
, chunk
);
910 /* Called from main thread */
911 pa_usec_t
pa_source_get_latency(pa_source
*s
) {
914 pa_source_assert_ref(s
);
915 pa_assert_ctl_context();
916 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
918 if (s
->state
== PA_SOURCE_SUSPENDED
)
921 if (!(s
->flags
& PA_SOURCE_LATENCY
))
924 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) == 0);
929 /* Called from IO thread */
930 pa_usec_t
pa_source_get_latency_within_thread(pa_source
*s
) {
934 pa_source_assert_ref(s
);
935 pa_source_assert_io_context(s
);
936 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
938 /* The returned value is supposed to be in the time domain of the sound card! */
940 if (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
)
943 if (!(s
->flags
& PA_SOURCE_LATENCY
))
948 /* FIXME: We probably should make this a proper vtable callback instead of going through process_msg() */
950 if (o
->process_msg(o
, PA_SOURCE_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) < 0)
956 /* Called from the main thread (and also from the IO thread while the main
957 * thread is waiting).
959 * When a source uses volume sharing, it never has the PA_SOURCE_FLAT_VOLUME flag
960 * set. Instead, flat volume mode is detected by checking whether the root source
961 * has the flag set. */
962 pa_bool_t
pa_source_flat_volume_enabled(pa_source
*s
) {
963 pa_source_assert_ref(s
);
965 s
= pa_source_get_master(s
);
968 return (s
->flags
& PA_SOURCE_FLAT_VOLUME
);
973 /* Called from the main thread (and also from the IO thread while the main
974 * thread is waiting). */
975 pa_source
*pa_source_get_master(pa_source
*s
) {
976 pa_source_assert_ref(s
);
978 while (s
&& (s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
979 if (PA_UNLIKELY(!s
->output_from_master
))
982 s
= s
->output_from_master
->source
;
988 /* Called from main context */
989 pa_bool_t
pa_source_is_passthrough(pa_source
*s
) {
991 pa_source_assert_ref(s
);
993 /* NB Currently only monitor sources support passthrough mode */
994 return (s
->monitor_of
&& pa_sink_is_passthrough(s
->monitor_of
));
997 /* Called from main context */
998 void pa_source_enter_passthrough(pa_source
*s
) {
1001 /* set the volume to NORM */
1002 s
->saved_volume
= *pa_source_get_volume(s
, TRUE
);
1003 s
->saved_save_volume
= s
->save_volume
;
1005 pa_cvolume_set(&volume
, s
->sample_spec
.channels
, PA_MIN(s
->base_volume
, PA_VOLUME_NORM
));
1006 pa_source_set_volume(s
, &volume
, TRUE
, FALSE
);
1009 /* Called from main context */
1010 void pa_source_leave_passthrough(pa_source
*s
) {
1011 /* Restore source volume to what it was before we entered passthrough mode */
1012 pa_source_set_volume(s
, &s
->saved_volume
, TRUE
, s
->saved_save_volume
);
1014 pa_cvolume_init(&s
->saved_volume
);
1015 s
->saved_save_volume
= FALSE
;
1018 /* Called from main context. */
1019 static void compute_reference_ratio(pa_source_output
*o
) {
1021 pa_cvolume remapped
;
1024 pa_assert(pa_source_flat_volume_enabled(o
->source
));
1027 * Calculates the reference ratio from the source's reference
1028 * volume. This basically calculates:
1030 * o->reference_ratio = o->volume / o->source->reference_volume
1033 remapped
= o
->source
->reference_volume
;
1034 pa_cvolume_remap(&remapped
, &o
->source
->channel_map
, &o
->channel_map
);
1036 o
->reference_ratio
.channels
= o
->sample_spec
.channels
;
1038 for (c
= 0; c
< o
->sample_spec
.channels
; c
++) {
1040 /* We don't update when the source volume is 0 anyway */
1041 if (remapped
.values
[c
] <= PA_VOLUME_MUTED
)
1044 /* Don't update the reference ratio unless necessary */
1045 if (pa_sw_volume_multiply(
1046 o
->reference_ratio
.values
[c
],
1047 remapped
.values
[c
]) == o
->volume
.values
[c
])
1050 o
->reference_ratio
.values
[c
] = pa_sw_volume_divide(
1051 o
->volume
.values
[c
],
1052 remapped
.values
[c
]);
1056 /* Called from main context. Only called for the root source in volume sharing
1057 * cases, except for internal recursive calls. */
1058 static void compute_reference_ratios(pa_source
*s
) {
1060 pa_source_output
*o
;
1062 pa_source_assert_ref(s
);
1063 pa_assert_ctl_context();
1064 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1065 pa_assert(pa_source_flat_volume_enabled(s
));
1067 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1068 compute_reference_ratio(o
);
1070 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1071 compute_reference_ratios(o
->destination_source
);
1075 /* Called from main context. Only called for the root source in volume sharing
1076 * cases, except for internal recursive calls. */
1077 static void compute_real_ratios(pa_source
*s
) {
1078 pa_source_output
*o
;
1081 pa_source_assert_ref(s
);
1082 pa_assert_ctl_context();
1083 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1084 pa_assert(pa_source_flat_volume_enabled(s
));
1086 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1088 pa_cvolume remapped
;
1090 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1091 /* The origin source uses volume sharing, so this input's real ratio
1092 * is handled as a special case - the real ratio must be 0 dB, and
1093 * as a result i->soft_volume must equal i->volume_factor. */
1094 pa_cvolume_reset(&o
->real_ratio
, o
->real_ratio
.channels
);
1095 o
->soft_volume
= o
->volume_factor
;
1097 compute_real_ratios(o
->destination_source
);
1103 * This basically calculates:
1105 * i->real_ratio := i->volume / s->real_volume
1106 * i->soft_volume := i->real_ratio * i->volume_factor
1109 remapped
= s
->real_volume
;
1110 pa_cvolume_remap(&remapped
, &s
->channel_map
, &o
->channel_map
);
1112 o
->real_ratio
.channels
= o
->sample_spec
.channels
;
1113 o
->soft_volume
.channels
= o
->sample_spec
.channels
;
1115 for (c
= 0; c
< o
->sample_spec
.channels
; c
++) {
1117 if (remapped
.values
[c
] <= PA_VOLUME_MUTED
) {
1118 /* We leave o->real_ratio untouched */
1119 o
->soft_volume
.values
[c
] = PA_VOLUME_MUTED
;
1123 /* Don't lose accuracy unless necessary */
1124 if (pa_sw_volume_multiply(
1125 o
->real_ratio
.values
[c
],
1126 remapped
.values
[c
]) != o
->volume
.values
[c
])
1128 o
->real_ratio
.values
[c
] = pa_sw_volume_divide(
1129 o
->volume
.values
[c
],
1130 remapped
.values
[c
]);
1132 o
->soft_volume
.values
[c
] = pa_sw_volume_multiply(
1133 o
->real_ratio
.values
[c
],
1134 o
->volume_factor
.values
[c
]);
1137 /* We don't copy the soft_volume to the thread_info data
1138 * here. That must be done by the caller */
1142 static pa_cvolume
*cvolume_remap_minimal_impact(
1144 const pa_cvolume
*template,
1145 const pa_channel_map
*from
,
1146 const pa_channel_map
*to
) {
1151 pa_assert(template);
1154 pa_assert(pa_cvolume_compatible_with_channel_map(v
, from
));
1155 pa_assert(pa_cvolume_compatible_with_channel_map(template, to
));
1157 /* Much like pa_cvolume_remap(), but tries to minimize impact when
1158 * mapping from source output to source volumes:
1160 * If template is a possible remapping from v it is used instead
1161 * of remapping anew.
1163 * If the channel maps don't match we set an all-channel volume on
1164 * the source to ensure that changing a volume on one stream has no
1165 * effect that cannot be compensated for in another stream that
1166 * does not have the same channel map as the source. */
1168 if (pa_channel_map_equal(from
, to
))
1172 if (pa_cvolume_equal(pa_cvolume_remap(&t
, to
, from
), v
)) {
1177 pa_cvolume_set(v
, to
->channels
, pa_cvolume_max(v
));
1181 /* Called from main thread. Only called for the root source in volume sharing
1182 * cases, except for internal recursive calls. */
1183 static void get_maximum_output_volume(pa_source
*s
, pa_cvolume
*max_volume
, const pa_channel_map
*channel_map
) {
1184 pa_source_output
*o
;
1187 pa_source_assert_ref(s
);
1188 pa_assert(max_volume
);
1189 pa_assert(channel_map
);
1190 pa_assert(pa_source_flat_volume_enabled(s
));
1192 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1193 pa_cvolume remapped
;
1195 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1196 get_maximum_output_volume(o
->destination_source
, max_volume
, channel_map
);
1198 /* Ignore this output. The origin source uses volume sharing, so this
1199 * output's volume will be set to be equal to the root source's real
1200 * volume. Obviously this output's current volume must not then
1201 * affect what the root source's real volume will be. */
1205 remapped
= o
->volume
;
1206 cvolume_remap_minimal_impact(&remapped
, max_volume
, &o
->channel_map
, channel_map
);
1207 pa_cvolume_merge(max_volume
, max_volume
, &remapped
);
1211 /* Called from main thread. Only called for the root source in volume sharing
1212 * cases, except for internal recursive calls. */
1213 static pa_bool_t
has_outputs(pa_source
*s
) {
1214 pa_source_output
*o
;
1217 pa_source_assert_ref(s
);
1219 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1220 if (!o
->destination_source
|| !(o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
) || has_outputs(o
->destination_source
))
1227 /* Called from main thread. Only called for the root source in volume sharing
1228 * cases, except for internal recursive calls. */
1229 static void update_real_volume(pa_source
*s
, const pa_cvolume
*new_volume
, pa_channel_map
*channel_map
) {
1230 pa_source_output
*o
;
1233 pa_source_assert_ref(s
);
1234 pa_assert(new_volume
);
1235 pa_assert(channel_map
);
1237 s
->real_volume
= *new_volume
;
1238 pa_cvolume_remap(&s
->real_volume
, channel_map
, &s
->channel_map
);
1240 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1241 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1242 if (pa_source_flat_volume_enabled(s
)) {
1243 pa_cvolume old_volume
= o
->volume
;
1245 /* Follow the root source's real volume. */
1246 o
->volume
= *new_volume
;
1247 pa_cvolume_remap(&o
->volume
, channel_map
, &o
->channel_map
);
1248 compute_reference_ratio(o
);
1250 /* The volume changed, let's tell people so */
1251 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1252 if (o
->volume_changed
)
1253 o
->volume_changed(o
);
1255 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1259 update_real_volume(o
->destination_source
, new_volume
, channel_map
);
1264 /* Called from main thread. Only called for the root source in shared volume
1266 static void compute_real_volume(pa_source
*s
) {
1267 pa_source_assert_ref(s
);
1268 pa_assert_ctl_context();
1269 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1270 pa_assert(pa_source_flat_volume_enabled(s
));
1271 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1273 /* This determines the maximum volume of all streams and sets
1274 * s->real_volume accordingly. */
1276 if (!has_outputs(s
)) {
1277 /* In the special case that we have no source outputs we leave the
1278 * volume unmodified. */
1279 update_real_volume(s
, &s
->reference_volume
, &s
->channel_map
);
1283 pa_cvolume_mute(&s
->real_volume
, s
->channel_map
.channels
);
1285 /* First let's determine the new maximum volume of all outputs
1286 * connected to this source */
1287 get_maximum_output_volume(s
, &s
->real_volume
, &s
->channel_map
);
1288 update_real_volume(s
, &s
->real_volume
, &s
->channel_map
);
1290 /* Then, let's update the real ratios/soft volumes of all outputs
1291 * connected to this source */
1292 compute_real_ratios(s
);
1295 /* Called from main thread. Only called for the root source in shared volume
1296 * cases, except for internal recursive calls. */
1297 static void propagate_reference_volume(pa_source
*s
) {
1298 pa_source_output
*o
;
1301 pa_source_assert_ref(s
);
1302 pa_assert_ctl_context();
1303 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1304 pa_assert(pa_source_flat_volume_enabled(s
));
1306 /* This is called whenever the source volume changes that is not
1307 * caused by a source output volume change. We need to fix up the
1308 * source output volumes accordingly */
1310 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1311 pa_cvolume old_volume
;
1313 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1314 propagate_reference_volume(o
->destination_source
);
1316 /* Since the origin source uses volume sharing, this output's volume
1317 * needs to be updated to match the root source's real volume, but
1318 * that will be done later in update_shared_real_volume(). */
1322 old_volume
= o
->volume
;
1324 /* This basically calculates:
1326 * o->volume := o->reference_volume * o->reference_ratio */
1328 o
->volume
= s
->reference_volume
;
1329 pa_cvolume_remap(&o
->volume
, &s
->channel_map
, &o
->channel_map
);
1330 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1332 /* The volume changed, let's tell people so */
1333 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1335 if (o
->volume_changed
)
1336 o
->volume_changed(o
);
1338 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1343 /* Called from main thread. Only called for the root source in volume sharing
1344 * cases, except for internal recursive calls. The return value indicates
1345 * whether any reference volume actually changed. */
1346 static pa_bool_t
update_reference_volume(pa_source
*s
, const pa_cvolume
*v
, const pa_channel_map
*channel_map
, pa_bool_t save
) {
1348 pa_bool_t reference_volume_changed
;
1349 pa_source_output
*o
;
1352 pa_source_assert_ref(s
);
1353 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1355 pa_assert(channel_map
);
1356 pa_assert(pa_cvolume_valid(v
));
1359 pa_cvolume_remap(&volume
, channel_map
, &s
->channel_map
);
1361 reference_volume_changed
= !pa_cvolume_equal(&volume
, &s
->reference_volume
);
1362 s
->reference_volume
= volume
;
1364 s
->save_volume
= (!reference_volume_changed
&& s
->save_volume
) || save
;
1366 if (reference_volume_changed
)
1367 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1368 else if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1369 /* If the root source's volume doesn't change, then there can't be any
1370 * changes in the other source in the source tree either.
1372 * It's probably theoretically possible that even if the root source's
1373 * volume changes slightly, some filter source doesn't change its volume
1374 * due to rounding errors. If that happens, we still want to propagate
1375 * the changed root source volume to the sources connected to the
1376 * intermediate source that didn't change its volume. This theoretical
1377 * possibility is the reason why we have that !(s->flags &
1378 * PA_SOURCE_SHARE_VOLUME_WITH_MASTER) condition. Probably nobody would
1379 * notice even if we returned here FALSE always if
1380 * reference_volume_changed is FALSE. */
1383 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1384 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1385 update_reference_volume(o
->destination_source
, v
, channel_map
, FALSE
);
1391 /* Called from main thread */
1392 void pa_source_set_volume(
1394 const pa_cvolume
*volume
,
1398 pa_cvolume new_reference_volume
;
1399 pa_source
*root_source
;
1401 pa_source_assert_ref(s
);
1402 pa_assert_ctl_context();
1403 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1404 pa_assert(!volume
|| pa_cvolume_valid(volume
));
1405 pa_assert(volume
|| pa_source_flat_volume_enabled(s
));
1406 pa_assert(!volume
|| volume
->channels
== 1 || pa_cvolume_compatible(volume
, &s
->sample_spec
));
1408 /* make sure we don't change the volume in PASSTHROUGH mode ...
1409 * ... *except* if we're being invoked to reset the volume to ensure 0 dB gain */
1410 if (pa_source_is_passthrough(s
) && (!volume
|| !pa_cvolume_is_norm(volume
))) {
1411 pa_log_warn("Cannot change volume, Source is monitor of a PASSTHROUGH sink");
1415 /* In case of volume sharing, the volume is set for the root source first,
1416 * from which it's then propagated to the sharing sources. */
1417 root_source
= pa_source_get_master(s
);
1419 if (PA_UNLIKELY(!root_source
))
1422 /* As a special exception we accept mono volumes on all sources --
1423 * even on those with more complex channel maps */
1426 if (pa_cvolume_compatible(volume
, &s
->sample_spec
))
1427 new_reference_volume
= *volume
;
1429 new_reference_volume
= s
->reference_volume
;
1430 pa_cvolume_scale(&new_reference_volume
, pa_cvolume_max(volume
));
1433 pa_cvolume_remap(&new_reference_volume
, &s
->channel_map
, &root_source
->channel_map
);
1436 /* If volume is NULL we synchronize the source's real and reference
1437 * volumes with the stream volumes. If it is not NULL we update
1438 * the reference_volume with it. */
1441 if (update_reference_volume(root_source
, &new_reference_volume
, &root_source
->channel_map
, save
)) {
1442 if (pa_source_flat_volume_enabled(root_source
)) {
1443 /* OK, propagate this volume change back to the outputs */
1444 propagate_reference_volume(root_source
);
1446 /* And now recalculate the real volume */
1447 compute_real_volume(root_source
);
1449 update_real_volume(root_source
, &root_source
->reference_volume
, &root_source
->channel_map
);
1453 pa_assert(pa_source_flat_volume_enabled(root_source
));
1455 /* Ok, let's determine the new real volume */
1456 compute_real_volume(root_source
);
1458 /* Let's 'push' the reference volume if necessary */
1459 pa_cvolume_merge(&new_reference_volume
, &s
->reference_volume
, &root_source
->real_volume
);
1460 /* If the source and it's root don't have the same number of channels, we need to remap */
1461 if (s
!= root_source
&& !pa_channel_map_equal(&s
->channel_map
, &root_source
->channel_map
))
1462 pa_cvolume_remap(&new_reference_volume
, &s
->channel_map
, &root_source
->channel_map
);
1463 update_reference_volume(root_source
, &new_reference_volume
, &root_source
->channel_map
, save
);
1465 /* Now that the reference volume is updated, we can update the streams'
1466 * reference ratios. */
1467 compute_reference_ratios(root_source
);
1470 if (root_source
->set_volume
) {
1471 /* If we have a function set_volume(), then we do not apply a
1472 * soft volume by default. However, set_volume() is free to
1473 * apply one to root_source->soft_volume */
1475 pa_cvolume_reset(&root_source
->soft_volume
, root_source
->sample_spec
.channels
);
1476 if (!(root_source
->flags
& PA_SOURCE_DEFERRED_VOLUME
))
1477 root_source
->set_volume(root_source
);
1480 /* If we have no function set_volume(), then the soft volume
1481 * becomes the real volume */
1482 root_source
->soft_volume
= root_source
->real_volume
;
1484 /* This tells the source that soft volume and/or real volume changed */
1486 pa_assert_se(pa_asyncmsgq_send(root_source
->asyncmsgq
, PA_MSGOBJECT(root_source
), PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
) == 0);
1489 /* Called from the io thread if sync volume is used, otherwise from the main thread.
1490 * Only to be called by source implementor */
1491 void pa_source_set_soft_volume(pa_source
*s
, const pa_cvolume
*volume
) {
1493 pa_source_assert_ref(s
);
1494 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1496 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
)
1497 pa_source_assert_io_context(s
);
1499 pa_assert_ctl_context();
1502 pa_cvolume_reset(&s
->soft_volume
, s
->sample_spec
.channels
);
1504 s
->soft_volume
= *volume
;
1506 if (PA_SOURCE_IS_LINKED(s
->state
) && !(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
))
1507 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME
, NULL
, 0, NULL
) == 0);
1509 s
->thread_info
.soft_volume
= s
->soft_volume
;
1512 /* Called from the main thread. Only called for the root source in volume sharing
1513 * cases, except for internal recursive calls. */
1514 static void propagate_real_volume(pa_source
*s
, const pa_cvolume
*old_real_volume
) {
1515 pa_source_output
*o
;
1518 pa_source_assert_ref(s
);
1519 pa_assert(old_real_volume
);
1520 pa_assert_ctl_context();
1521 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1523 /* This is called when the hardware's real volume changes due to
1524 * some external event. We copy the real volume into our
1525 * reference volume and then rebuild the stream volumes based on
1526 * i->real_ratio which should stay fixed. */
1528 if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1529 if (pa_cvolume_equal(old_real_volume
, &s
->real_volume
))
1532 /* 1. Make the real volume the reference volume */
1533 update_reference_volume(s
, &s
->real_volume
, &s
->channel_map
, TRUE
);
1536 if (pa_source_flat_volume_enabled(s
)) {
1538 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1539 pa_cvolume old_volume
= o
->volume
;
1541 /* 2. Since the source's reference and real volumes are equal
1542 * now our ratios should be too. */
1543 o
->reference_ratio
= o
->real_ratio
;
1545 /* 3. Recalculate the new stream reference volume based on the
1546 * reference ratio and the sink's reference volume.
1548 * This basically calculates:
1550 * o->volume = s->reference_volume * o->reference_ratio
1552 * This is identical to propagate_reference_volume() */
1553 o
->volume
= s
->reference_volume
;
1554 pa_cvolume_remap(&o
->volume
, &s
->channel_map
, &o
->channel_map
);
1555 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1557 /* Notify if something changed */
1558 if (!pa_cvolume_equal(&old_volume
, &o
->volume
)) {
1560 if (o
->volume_changed
)
1561 o
->volume_changed(o
);
1563 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1566 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1567 propagate_real_volume(o
->destination_source
, old_real_volume
);
1571 /* Something got changed in the hardware. It probably makes sense
1572 * to save changed hw settings given that hw volume changes not
1573 * triggered by PA are almost certainly done by the user. */
1574 if (!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1575 s
->save_volume
= TRUE
;
1578 /* Called from io thread */
1579 void pa_source_update_volume_and_mute(pa_source
*s
) {
1581 pa_source_assert_io_context(s
);
1583 pa_asyncmsgq_post(pa_thread_mq_get()->outq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE
, NULL
, 0, NULL
, NULL
);
1586 /* Called from main thread */
1587 const pa_cvolume
*pa_source_get_volume(pa_source
*s
, pa_bool_t force_refresh
) {
1588 pa_source_assert_ref(s
);
1589 pa_assert_ctl_context();
1590 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1592 if (s
->refresh_volume
|| force_refresh
) {
1593 struct pa_cvolume old_real_volume
;
1595 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1597 old_real_volume
= s
->real_volume
;
1599 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_volume
)
1602 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_VOLUME
, NULL
, 0, NULL
) == 0);
1604 update_real_volume(s
, &s
->real_volume
, &s
->channel_map
);
1605 propagate_real_volume(s
, &old_real_volume
);
1608 return &s
->reference_volume
;
1611 /* Called from main thread. In volume sharing cases, only the root source may
1613 void pa_source_volume_changed(pa_source
*s
, const pa_cvolume
*new_real_volume
) {
1614 pa_cvolume old_real_volume
;
1616 pa_source_assert_ref(s
);
1617 pa_assert_ctl_context();
1618 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1619 pa_assert(!(s
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
));
1621 /* The source implementor may call this if the volume changed to make sure everyone is notified */
1623 old_real_volume
= s
->real_volume
;
1624 update_real_volume(s
, new_real_volume
, &s
->channel_map
);
1625 propagate_real_volume(s
, &old_real_volume
);
1628 /* Called from main thread */
1629 void pa_source_set_mute(pa_source
*s
, pa_bool_t mute
, pa_bool_t save
) {
1630 pa_bool_t old_muted
;
1632 pa_source_assert_ref(s
);
1633 pa_assert_ctl_context();
1634 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1636 old_muted
= s
->muted
;
1638 s
->save_muted
= (old_muted
== s
->muted
&& s
->save_muted
) || save
;
1640 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->set_mute
)
1643 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, NULL
, 0, NULL
) == 0);
1645 if (old_muted
!= s
->muted
)
1646 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1649 /* Called from main thread */
1650 pa_bool_t
pa_source_get_mute(pa_source
*s
, pa_bool_t force_refresh
) {
1652 pa_source_assert_ref(s
);
1653 pa_assert_ctl_context();
1654 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1656 if (s
->refresh_muted
|| force_refresh
) {
1657 pa_bool_t old_muted
= s
->muted
;
1659 if (!(s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_mute
)
1662 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MUTE
, NULL
, 0, NULL
) == 0);
1664 if (old_muted
!= s
->muted
) {
1665 s
->save_muted
= TRUE
;
1667 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1669 /* Make sure the soft mute status stays in sync */
1670 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MUTE
, NULL
, 0, NULL
) == 0);
1677 /* Called from main thread */
1678 void pa_source_mute_changed(pa_source
*s
, pa_bool_t new_muted
) {
1679 pa_source_assert_ref(s
);
1680 pa_assert_ctl_context();
1681 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1683 /* The source implementor may call this if the mute state changed to make sure everyone is notified */
1685 if (s
->muted
== new_muted
)
1688 s
->muted
= new_muted
;
1689 s
->save_muted
= TRUE
;
1691 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1694 /* Called from main thread */
1695 pa_bool_t
pa_source_update_proplist(pa_source
*s
, pa_update_mode_t mode
, pa_proplist
*p
) {
1696 pa_source_assert_ref(s
);
1697 pa_assert_ctl_context();
1700 pa_proplist_update(s
->proplist
, mode
, p
);
1702 if (PA_SOURCE_IS_LINKED(s
->state
)) {
1703 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
1704 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1710 /* Called from main thread */
1711 /* FIXME -- this should be dropped and be merged into pa_source_update_proplist() */
1712 void pa_source_set_description(pa_source
*s
, const char *description
) {
1714 pa_source_assert_ref(s
);
1715 pa_assert_ctl_context();
1717 if (!description
&& !pa_proplist_contains(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
))
1720 old
= pa_proplist_gets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
1722 if (old
&& description
&& pa_streq(old
, description
))
1726 pa_proplist_sets(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
, description
);
1728 pa_proplist_unset(s
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
1730 if (PA_SOURCE_IS_LINKED(s
->state
)) {
1731 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
1732 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED
], s
);
1736 /* Called from main thread */
1737 unsigned pa_source_linked_by(pa_source
*s
) {
1738 pa_source_assert_ref(s
);
1739 pa_assert_ctl_context();
1740 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1742 return pa_idxset_size(s
->outputs
);
1745 /* Called from main thread */
1746 unsigned pa_source_used_by(pa_source
*s
) {
1749 pa_source_assert_ref(s
);
1750 pa_assert_ctl_context();
1751 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
1753 ret
= pa_idxset_size(s
->outputs
);
1754 pa_assert(ret
>= s
->n_corked
);
1756 return ret
- s
->n_corked
;
1759 /* Called from main thread */
1760 unsigned pa_source_check_suspend(pa_source
*s
) {
1762 pa_source_output
*o
;
1765 pa_source_assert_ref(s
);
1766 pa_assert_ctl_context();
1768 if (!PA_SOURCE_IS_LINKED(s
->state
))
1773 PA_IDXSET_FOREACH(o
, s
->outputs
, idx
) {
1774 pa_source_output_state_t st
;
1776 st
= pa_source_output_get_state(o
);
1778 /* We do not assert here. It is perfectly valid for a source output to
1779 * be in the INIT state (i.e. created, marked done but not yet put)
1780 * and we should not care if it's unlinked as it won't contribute
1781 * towards our busy status.
1783 if (!PA_SOURCE_OUTPUT_IS_LINKED(st
))
1786 if (st
== PA_SOURCE_OUTPUT_CORKED
)
1789 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND
)
1798 /* Called from the IO thread */
1799 static void sync_output_volumes_within_thread(pa_source
*s
) {
1800 pa_source_output
*o
;
1803 pa_source_assert_ref(s
);
1804 pa_source_assert_io_context(s
);
1806 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
1807 if (pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
))
1810 o
->thread_info
.soft_volume
= o
->soft_volume
;
1811 //pa_source_output_request_rewind(o, 0, TRUE, FALSE, FALSE);
1815 /* Called from the IO thread. Only called for the root source in volume sharing
1816 * cases, except for internal recursive calls. */
1817 static void set_shared_volume_within_thread(pa_source
*s
) {
1818 pa_source_output
*o
;
1821 pa_source_assert_ref(s
);
1823 PA_MSGOBJECT(s
)->process_msg(PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED
, NULL
, 0, NULL
);
1825 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
) {
1826 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
1827 set_shared_volume_within_thread(o
->destination_source
);
1831 /* Called from IO thread, except when it is not */
1832 int pa_source_process_msg(pa_msgobject
*object
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
1833 pa_source
*s
= PA_SOURCE(object
);
1834 pa_source_assert_ref(s
);
1836 switch ((pa_source_message_t
) code
) {
1838 case PA_SOURCE_MESSAGE_ADD_OUTPUT
: {
1839 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
1841 pa_hashmap_put(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
), pa_source_output_ref(o
));
1843 if (o
->direct_on_input
) {
1844 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
1845 pa_hashmap_put(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
), o
);
1848 pa_assert(!o
->thread_info
.attached
);
1849 o
->thread_info
.attached
= TRUE
;
1854 pa_source_output_set_state_within_thread(o
, o
->state
);
1856 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1)
1857 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
1859 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
1861 /* We don't just invalidate the requested latency here,
1862 * because if we are in a move we might need to fix up the
1863 * requested latency. */
1864 pa_source_output_set_requested_latency_within_thread(o
, o
->thread_info
.requested_source_latency
);
1866 /* In flat volume mode we need to update the volume as
1868 return object
->process_msg(object
, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
);
1871 case PA_SOURCE_MESSAGE_REMOVE_OUTPUT
: {
1872 pa_source_output
*o
= PA_SOURCE_OUTPUT(userdata
);
1874 pa_source_output_set_state_within_thread(o
, o
->state
);
1879 pa_assert(o
->thread_info
.attached
);
1880 o
->thread_info
.attached
= FALSE
;
1882 if (o
->thread_info
.direct_on_input
) {
1883 pa_hashmap_remove(o
->thread_info
.direct_on_input
->thread_info
.direct_outputs
, PA_UINT32_TO_PTR(o
->index
));
1884 o
->thread_info
.direct_on_input
= NULL
;
1887 if (pa_hashmap_remove(s
->thread_info
.outputs
, PA_UINT32_TO_PTR(o
->index
)))
1888 pa_source_output_unref(o
);
1890 pa_source_invalidate_requested_latency(s
, TRUE
);
1892 /* In flat volume mode we need to update the volume as
1894 return object
->process_msg(object
, PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
, NULL
, 0, NULL
);
1897 case PA_SOURCE_MESSAGE_SET_SHARED_VOLUME
: {
1898 pa_source
*root_source
= pa_source_get_master(s
);
1900 if (PA_LIKELY(root_source
))
1901 set_shared_volume_within_thread(root_source
);
1906 case PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED
:
1908 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
1910 pa_source_volume_change_push(s
);
1912 /* Fall through ... */
1914 case PA_SOURCE_MESSAGE_SET_VOLUME
:
1916 if (!pa_cvolume_equal(&s
->thread_info
.soft_volume
, &s
->soft_volume
)) {
1917 s
->thread_info
.soft_volume
= s
->soft_volume
;
1920 /* Fall through ... */
1922 case PA_SOURCE_MESSAGE_SYNC_VOLUMES
:
1923 sync_output_volumes_within_thread(s
);
1926 case PA_SOURCE_MESSAGE_GET_VOLUME
:
1928 if ((s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) && s
->get_volume
) {
1930 pa_source_volume_change_flush(s
);
1931 pa_sw_cvolume_divide(&s
->thread_info
.current_hw_volume
, &s
->real_volume
, &s
->soft_volume
);
1934 /* In case source implementor reset SW volume. */
1935 if (!pa_cvolume_equal(&s
->thread_info
.soft_volume
, &s
->soft_volume
)) {
1936 s
->thread_info
.soft_volume
= s
->soft_volume
;
1941 case PA_SOURCE_MESSAGE_SET_MUTE
:
1943 if (s
->thread_info
.soft_muted
!= s
->muted
) {
1944 s
->thread_info
.soft_muted
= s
->muted
;
1947 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
&& s
->set_mute
)
1952 case PA_SOURCE_MESSAGE_GET_MUTE
:
1954 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
&& s
->get_mute
)
1959 case PA_SOURCE_MESSAGE_SET_STATE
: {
1961 pa_bool_t suspend_change
=
1962 (s
->thread_info
.state
== PA_SOURCE_SUSPENDED
&& PA_SOURCE_IS_OPENED(PA_PTR_TO_UINT(userdata
))) ||
1963 (PA_SOURCE_IS_OPENED(s
->thread_info
.state
) && PA_PTR_TO_UINT(userdata
) == PA_SOURCE_SUSPENDED
);
1965 s
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
1967 if (suspend_change
) {
1968 pa_source_output
*o
;
1971 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
1972 if (o
->suspend_within_thread
)
1973 o
->suspend_within_thread(o
, s
->thread_info
.state
== PA_SOURCE_SUSPENDED
);
1979 case PA_SOURCE_MESSAGE_DETACH
:
1981 /* Detach all streams */
1982 pa_source_detach_within_thread(s
);
1985 case PA_SOURCE_MESSAGE_ATTACH
:
1987 /* Reattach all streams */
1988 pa_source_attach_within_thread(s
);
1991 case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
: {
1993 pa_usec_t
*usec
= userdata
;
1994 *usec
= pa_source_get_requested_latency_within_thread(s
);
1996 /* Yes, that's right, the IO thread will see -1 when no
1997 * explicit requested latency is configured, the main
1998 * thread will see max_latency */
1999 if (*usec
== (pa_usec_t
) -1)
2000 *usec
= s
->thread_info
.max_latency
;
2005 case PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
: {
2006 pa_usec_t
*r
= userdata
;
2008 pa_source_set_latency_range_within_thread(s
, r
[0], r
[1]);
2013 case PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
: {
2014 pa_usec_t
*r
= userdata
;
2016 r
[0] = s
->thread_info
.min_latency
;
2017 r
[1] = s
->thread_info
.max_latency
;
2022 case PA_SOURCE_MESSAGE_GET_FIXED_LATENCY
:
2024 *((pa_usec_t
*) userdata
) = s
->thread_info
.fixed_latency
;
2027 case PA_SOURCE_MESSAGE_SET_FIXED_LATENCY
:
2029 pa_source_set_fixed_latency_within_thread(s
, (pa_usec_t
) offset
);
2032 case PA_SOURCE_MESSAGE_GET_MAX_REWIND
:
2034 *((size_t*) userdata
) = s
->thread_info
.max_rewind
;
2037 case PA_SOURCE_MESSAGE_SET_MAX_REWIND
:
2039 pa_source_set_max_rewind_within_thread(s
, (size_t) offset
);
2042 case PA_SOURCE_MESSAGE_GET_LATENCY
:
2044 if (s
->monitor_of
) {
2045 *((pa_usec_t
*) userdata
) = 0;
2049 /* Implementors need to overwrite this implementation! */
2052 case PA_SOURCE_MESSAGE_SET_PORT
:
2054 pa_assert(userdata
);
2056 struct source_message_set_port
*msg_data
= userdata
;
2057 msg_data
->ret
= s
->set_port(s
, msg_data
->port
);
2061 case PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE
:
2062 /* This message is sent from IO-thread and handled in main thread. */
2063 pa_assert_ctl_context();
2065 /* Make sure we're not messing with main thread when no longer linked */
2066 if (!PA_SOURCE_IS_LINKED(s
->state
))
2069 pa_source_get_volume(s
, TRUE
);
2070 pa_source_get_mute(s
, TRUE
);
2073 case PA_SOURCE_MESSAGE_MAX
:
2080 /* Called from main thread */
2081 int pa_source_suspend_all(pa_core
*c
, pa_bool_t suspend
, pa_suspend_cause_t cause
) {
2086 pa_core_assert_ref(c
);
2087 pa_assert_ctl_context();
2088 pa_assert(cause
!= 0);
2090 for (source
= PA_SOURCE(pa_idxset_first(c
->sources
, &idx
)); source
; source
= PA_SOURCE(pa_idxset_next(c
->sources
, &idx
))) {
2093 if (source
->monitor_of
)
2096 if ((r
= pa_source_suspend(source
, suspend
, cause
)) < 0)
2103 /* Called from main thread */
2104 void pa_source_detach(pa_source
*s
) {
2105 pa_source_assert_ref(s
);
2106 pa_assert_ctl_context();
2107 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2109 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_DETACH
, NULL
, 0, NULL
) == 0);
2112 /* Called from main thread */
2113 void pa_source_attach(pa_source
*s
) {
2114 pa_source_assert_ref(s
);
2115 pa_assert_ctl_context();
2116 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2118 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_ATTACH
, NULL
, 0, NULL
) == 0);
2121 /* Called from IO thread */
2122 void pa_source_detach_within_thread(pa_source
*s
) {
2123 pa_source_output
*o
;
2126 pa_source_assert_ref(s
);
2127 pa_source_assert_io_context(s
);
2128 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
2130 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2135 /* Called from IO thread */
2136 void pa_source_attach_within_thread(pa_source
*s
) {
2137 pa_source_output
*o
;
2140 pa_source_assert_ref(s
);
2141 pa_source_assert_io_context(s
);
2142 pa_assert(PA_SOURCE_IS_LINKED(s
->thread_info
.state
));
2144 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2149 /* Called from IO thread */
2150 pa_usec_t
pa_source_get_requested_latency_within_thread(pa_source
*s
) {
2151 pa_usec_t result
= (pa_usec_t
) -1;
2152 pa_source_output
*o
;
2155 pa_source_assert_ref(s
);
2156 pa_source_assert_io_context(s
);
2158 if (!(s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
2159 return PA_CLAMP(s
->thread_info
.fixed_latency
, s
->thread_info
.min_latency
, s
->thread_info
.max_latency
);
2161 if (s
->thread_info
.requested_latency_valid
)
2162 return s
->thread_info
.requested_latency
;
2164 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2165 if (o
->thread_info
.requested_source_latency
!= (pa_usec_t
) -1 &&
2166 (result
== (pa_usec_t
) -1 || result
> o
->thread_info
.requested_source_latency
))
2167 result
= o
->thread_info
.requested_source_latency
;
2169 if (result
!= (pa_usec_t
) -1)
2170 result
= PA_CLAMP(result
, s
->thread_info
.min_latency
, s
->thread_info
.max_latency
);
2172 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2173 /* Only cache this if we are fully set up */
2174 s
->thread_info
.requested_latency
= result
;
2175 s
->thread_info
.requested_latency_valid
= TRUE
;
2181 /* Called from main thread */
2182 pa_usec_t
pa_source_get_requested_latency(pa_source
*s
) {
2185 pa_source_assert_ref(s
);
2186 pa_assert_ctl_context();
2187 pa_assert(PA_SOURCE_IS_LINKED(s
->state
));
2189 if (s
->state
== PA_SOURCE_SUSPENDED
)
2192 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
2197 /* Called from IO thread */
2198 void pa_source_set_max_rewind_within_thread(pa_source
*s
, size_t max_rewind
) {
2199 pa_source_output
*o
;
2202 pa_source_assert_ref(s
);
2203 pa_source_assert_io_context(s
);
2205 if (max_rewind
== s
->thread_info
.max_rewind
)
2208 s
->thread_info
.max_rewind
= max_rewind
;
2210 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
))
2211 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2212 pa_source_output_update_max_rewind(o
, s
->thread_info
.max_rewind
);
2215 /* Called from main thread */
2216 void pa_source_set_max_rewind(pa_source
*s
, size_t max_rewind
) {
2217 pa_source_assert_ref(s
);
2218 pa_assert_ctl_context();
2220 if (PA_SOURCE_IS_LINKED(s
->state
))
2221 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_MAX_REWIND
, NULL
, max_rewind
, NULL
) == 0);
2223 pa_source_set_max_rewind_within_thread(s
, max_rewind
);
2226 /* Called from IO thread */
2227 void pa_source_invalidate_requested_latency(pa_source
*s
, pa_bool_t dynamic
) {
2228 pa_source_output
*o
;
2231 pa_source_assert_ref(s
);
2232 pa_source_assert_io_context(s
);
2234 if ((s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
2235 s
->thread_info
.requested_latency_valid
= FALSE
;
2239 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2241 if (s
->update_requested_latency
)
2242 s
->update_requested_latency(s
);
2244 while ((o
= pa_hashmap_iterate(s
->thread_info
.outputs
, &state
, NULL
)))
2245 if (o
->update_source_requested_latency
)
2246 o
->update_source_requested_latency(o
);
2250 pa_sink_invalidate_requested_latency(s
->monitor_of
, dynamic
);
2253 /* Called from main thread */
2254 void pa_source_set_latency_range(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
2255 pa_source_assert_ref(s
);
2256 pa_assert_ctl_context();
2258 /* min_latency == 0: no limit
2259 * min_latency anything else: specified limit
2261 * Similar for max_latency */
2263 if (min_latency
< ABSOLUTE_MIN_LATENCY
)
2264 min_latency
= ABSOLUTE_MIN_LATENCY
;
2266 if (max_latency
<= 0 ||
2267 max_latency
> ABSOLUTE_MAX_LATENCY
)
2268 max_latency
= ABSOLUTE_MAX_LATENCY
;
2270 pa_assert(min_latency
<= max_latency
);
2272 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2273 pa_assert((min_latency
== ABSOLUTE_MIN_LATENCY
&&
2274 max_latency
== ABSOLUTE_MAX_LATENCY
) ||
2275 (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
));
2277 if (PA_SOURCE_IS_LINKED(s
->state
)) {
2283 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
2285 pa_source_set_latency_range_within_thread(s
, min_latency
, max_latency
);
2288 /* Called from main thread */
2289 void pa_source_get_latency_range(pa_source
*s
, pa_usec_t
*min_latency
, pa_usec_t
*max_latency
) {
2290 pa_source_assert_ref(s
);
2291 pa_assert_ctl_context();
2292 pa_assert(min_latency
);
2293 pa_assert(max_latency
);
2295 if (PA_SOURCE_IS_LINKED(s
->state
)) {
2296 pa_usec_t r
[2] = { 0, 0 };
2298 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_LATENCY_RANGE
, r
, 0, NULL
) == 0);
2300 *min_latency
= r
[0];
2301 *max_latency
= r
[1];
2303 *min_latency
= s
->thread_info
.min_latency
;
2304 *max_latency
= s
->thread_info
.max_latency
;
2308 /* Called from IO thread, and from main thread before pa_source_put() is called */
2309 void pa_source_set_latency_range_within_thread(pa_source
*s
, pa_usec_t min_latency
, pa_usec_t max_latency
) {
2310 pa_source_assert_ref(s
);
2311 pa_source_assert_io_context(s
);
2313 pa_assert(min_latency
>= ABSOLUTE_MIN_LATENCY
);
2314 pa_assert(max_latency
<= ABSOLUTE_MAX_LATENCY
);
2315 pa_assert(min_latency
<= max_latency
);
2317 /* Hmm, let's see if someone forgot to set PA_SOURCE_DYNAMIC_LATENCY here... */
2318 pa_assert((min_latency
== ABSOLUTE_MIN_LATENCY
&&
2319 max_latency
== ABSOLUTE_MAX_LATENCY
) ||
2320 (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) ||
2323 if (s
->thread_info
.min_latency
== min_latency
&&
2324 s
->thread_info
.max_latency
== max_latency
)
2327 s
->thread_info
.min_latency
= min_latency
;
2328 s
->thread_info
.max_latency
= max_latency
;
2330 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2331 pa_source_output
*o
;
2334 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2335 if (o
->update_source_latency_range
)
2336 o
->update_source_latency_range(o
);
2339 pa_source_invalidate_requested_latency(s
, FALSE
);
2342 /* Called from main thread, before the source is put */
2343 void pa_source_set_fixed_latency(pa_source
*s
, pa_usec_t latency
) {
2344 pa_source_assert_ref(s
);
2345 pa_assert_ctl_context();
2347 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) {
2348 pa_assert(latency
== 0);
2352 if (latency
< ABSOLUTE_MIN_LATENCY
)
2353 latency
= ABSOLUTE_MIN_LATENCY
;
2355 if (latency
> ABSOLUTE_MAX_LATENCY
)
2356 latency
= ABSOLUTE_MAX_LATENCY
;
2358 if (PA_SOURCE_IS_LINKED(s
->state
))
2359 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_FIXED_LATENCY
, NULL
, (int64_t) latency
, NULL
) == 0);
2361 s
->thread_info
.fixed_latency
= latency
;
2364 /* Called from main thread */
2365 pa_usec_t
pa_source_get_fixed_latency(pa_source
*s
) {
2368 pa_source_assert_ref(s
);
2369 pa_assert_ctl_context();
2371 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
)
2374 if (PA_SOURCE_IS_LINKED(s
->state
))
2375 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_FIXED_LATENCY
, &latency
, 0, NULL
) == 0);
2377 latency
= s
->thread_info
.fixed_latency
;
2382 /* Called from IO thread */
2383 void pa_source_set_fixed_latency_within_thread(pa_source
*s
, pa_usec_t latency
) {
2384 pa_source_assert_ref(s
);
2385 pa_source_assert_io_context(s
);
2387 if (s
->flags
& PA_SOURCE_DYNAMIC_LATENCY
) {
2388 pa_assert(latency
== 0);
2392 pa_assert(latency
>= ABSOLUTE_MIN_LATENCY
);
2393 pa_assert(latency
<= ABSOLUTE_MAX_LATENCY
);
2395 if (s
->thread_info
.fixed_latency
== latency
)
2398 s
->thread_info
.fixed_latency
= latency
;
2400 if (PA_SOURCE_IS_LINKED(s
->thread_info
.state
)) {
2401 pa_source_output
*o
;
2404 PA_HASHMAP_FOREACH(o
, s
->thread_info
.outputs
, state
)
2405 if (o
->update_source_fixed_latency
)
2406 o
->update_source_fixed_latency(o
);
2409 pa_source_invalidate_requested_latency(s
, FALSE
);
2412 /* Called from main thread */
2413 size_t pa_source_get_max_rewind(pa_source
*s
) {
2415 pa_assert_ctl_context();
2416 pa_source_assert_ref(s
);
2418 if (!PA_SOURCE_IS_LINKED(s
->state
))
2419 return s
->thread_info
.max_rewind
;
2421 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_GET_MAX_REWIND
, &r
, 0, NULL
) == 0);
2426 /* Called from main context */
2427 int pa_source_set_port(pa_source
*s
, const char *name
, pa_bool_t save
) {
2428 pa_device_port
*port
;
2431 pa_source_assert_ref(s
);
2432 pa_assert_ctl_context();
2435 pa_log_debug("set_port() operation not implemented for source %u \"%s\"", s
->index
, s
->name
);
2436 return -PA_ERR_NOTIMPLEMENTED
;
2440 return -PA_ERR_NOENTITY
;
2442 if (!(port
= pa_hashmap_get(s
->ports
, name
)))
2443 return -PA_ERR_NOENTITY
;
2445 if (s
->active_port
== port
) {
2446 s
->save_port
= s
->save_port
|| save
;
2450 if (s
->flags
& PA_SOURCE_DEFERRED_VOLUME
) {
2451 struct source_message_set_port msg
= { .port
= port
, .ret
= 0 };
2452 pa_assert_se(pa_asyncmsgq_send(s
->asyncmsgq
, PA_MSGOBJECT(s
), PA_SOURCE_MESSAGE_SET_PORT
, &msg
, 0, NULL
) == 0);
2456 ret
= s
->set_port(s
, port
);
2459 return -PA_ERR_NOENTITY
;
2461 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, s
->index
);
2463 pa_log_info("Changed port of source %u \"%s\" to %s", s
->index
, s
->name
, port
->name
);
2465 s
->active_port
= port
;
2466 s
->save_port
= save
;
2468 pa_hook_fire(&s
->core
->hooks
[PA_CORE_HOOK_SOURCE_PORT_CHANGED
], s
);
2473 PA_STATIC_FLIST_DECLARE(pa_source_volume_change
, 0, pa_xfree
);
2475 /* Called from the IO thread. */
2476 static pa_source_volume_change
*pa_source_volume_change_new(pa_source
*s
) {
2477 pa_source_volume_change
*c
;
2478 if (!(c
= pa_flist_pop(PA_STATIC_FLIST_GET(pa_source_volume_change
))))
2479 c
= pa_xnew(pa_source_volume_change
, 1);
2481 PA_LLIST_INIT(pa_source_volume_change
, c
);
2483 pa_cvolume_reset(&c
->hw_volume
, s
->sample_spec
.channels
);
2487 /* Called from the IO thread. */
2488 static void pa_source_volume_change_free(pa_source_volume_change
*c
) {
2490 if (pa_flist_push(PA_STATIC_FLIST_GET(pa_source_volume_change
), c
) < 0)
2494 /* Called from the IO thread. */
2495 void pa_source_volume_change_push(pa_source
*s
) {
2496 pa_source_volume_change
*c
= NULL
;
2497 pa_source_volume_change
*nc
= NULL
;
2498 uint32_t safety_margin
= s
->thread_info
.volume_change_safety_margin
;
2500 const char *direction
= NULL
;
2503 nc
= pa_source_volume_change_new(s
);
2505 /* NOTE: There is already more different volumes in pa_source that I can remember.
2506 * Adding one more volume for HW would get us rid of this, but I am trying
2507 * to survive with the ones we already have. */
2508 pa_sw_cvolume_divide(&nc
->hw_volume
, &s
->real_volume
, &s
->soft_volume
);
2510 if (!s
->thread_info
.volume_changes
&& pa_cvolume_equal(&nc
->hw_volume
, &s
->thread_info
.current_hw_volume
)) {
2511 pa_log_debug("Volume not changing");
2512 pa_source_volume_change_free(nc
);
2516 nc
->at
= pa_source_get_latency_within_thread(s
);
2517 nc
->at
+= pa_rtclock_now() + s
->thread_info
.volume_change_extra_delay
;
2519 if (s
->thread_info
.volume_changes_tail
) {
2520 for (c
= s
->thread_info
.volume_changes_tail
; c
; c
= c
->prev
) {
2521 /* If volume is going up let's do it a bit late. If it is going
2522 * down let's do it a bit early. */
2523 if (pa_cvolume_avg(&nc
->hw_volume
) > pa_cvolume_avg(&c
->hw_volume
)) {
2524 if (nc
->at
+ safety_margin
> c
->at
) {
2525 nc
->at
+= safety_margin
;
2530 else if (nc
->at
- safety_margin
> c
->at
) {
2531 nc
->at
-= safety_margin
;
2539 if (pa_cvolume_avg(&nc
->hw_volume
) > pa_cvolume_avg(&s
->thread_info
.current_hw_volume
)) {
2540 nc
->at
+= safety_margin
;
2543 nc
->at
-= safety_margin
;
2546 PA_LLIST_PREPEND(pa_source_volume_change
, s
->thread_info
.volume_changes
, nc
);
2549 PA_LLIST_INSERT_AFTER(pa_source_volume_change
, s
->thread_info
.volume_changes
, c
, nc
);
2552 pa_log_debug("Volume going %s to %d at %llu", direction
, pa_cvolume_avg(&nc
->hw_volume
), (long long unsigned) nc
->at
);
2554 /* We can ignore volume events that came earlier but should happen later than this. */
2555 PA_LLIST_FOREACH(c
, nc
->next
) {
2556 pa_log_debug("Volume change to %d at %llu was dropped", pa_cvolume_avg(&c
->hw_volume
), (long long unsigned) c
->at
);
2557 pa_source_volume_change_free(c
);
2560 s
->thread_info
.volume_changes_tail
= nc
;
2563 /* Called from the IO thread. */
2564 static void pa_source_volume_change_flush(pa_source
*s
) {
2565 pa_source_volume_change
*c
= s
->thread_info
.volume_changes
;
2567 s
->thread_info
.volume_changes
= NULL
;
2568 s
->thread_info
.volume_changes_tail
= NULL
;
2570 pa_source_volume_change
*next
= c
->next
;
2571 pa_source_volume_change_free(c
);
2576 /* Called from the IO thread. */
2577 pa_bool_t
pa_source_volume_change_apply(pa_source
*s
, pa_usec_t
*usec_to_next
) {
2578 pa_usec_t now
= pa_rtclock_now();
2579 pa_bool_t ret
= FALSE
;
2583 if (!PA_SOURCE_IS_LINKED(s
->state
)) {
2589 pa_assert(s
->write_volume
);
2591 while (s
->thread_info
.volume_changes
&& now
>= s
->thread_info
.volume_changes
->at
) {
2592 pa_source_volume_change
*c
= s
->thread_info
.volume_changes
;
2593 PA_LLIST_REMOVE(pa_source_volume_change
, s
->thread_info
.volume_changes
, c
);
2594 pa_log_debug("Volume change to %d at %llu was written %llu usec late",
2595 pa_cvolume_avg(&c
->hw_volume
), (long long unsigned) c
->at
, (long long unsigned) (now
- c
->at
));
2597 s
->thread_info
.current_hw_volume
= c
->hw_volume
;
2598 pa_source_volume_change_free(c
);
2601 if (s
->write_volume
&& ret
)
2604 if (s
->thread_info
.volume_changes
) {
2606 *usec_to_next
= s
->thread_info
.volume_changes
->at
- now
;
2607 if (pa_log_ratelimit(PA_LOG_DEBUG
))
2608 pa_log_debug("Next volume change in %lld usec", (long long) (s
->thread_info
.volume_changes
->at
- now
));
2613 s
->thread_info
.volume_changes_tail
= NULL
;
2619 /* Called from the main thread */
2620 /* Gets the list of formats supported by the source. The members and idxset must
2621 * be freed by the caller. */
2622 pa_idxset
* pa_source_get_formats(pa_source
*s
) {
2627 if (s
->get_formats
) {
2628 /* Source supports format query, all is good */
2629 ret
= s
->get_formats(s
);
2631 /* Source doesn't support format query, so assume it does PCM */
2632 pa_format_info
*f
= pa_format_info_new();
2633 f
->encoding
= PA_ENCODING_PCM
;
2635 ret
= pa_idxset_new(NULL
, NULL
);
2636 pa_idxset_put(ret
, f
, NULL
);
2642 /* Called from the main thread */
2643 /* Checks if the source can accept this format */
2644 pa_bool_t
pa_source_check_format(pa_source
*s
, pa_format_info
*f
)
2646 pa_idxset
*formats
= NULL
;
2647 pa_bool_t ret
= FALSE
;
2652 formats
= pa_source_get_formats(s
);
2655 pa_format_info
*finfo_device
;
2658 PA_IDXSET_FOREACH(finfo_device
, formats
, i
) {
2659 if (pa_format_info_is_compatible(finfo_device
, f
)) {
2665 pa_idxset_free(formats
, (pa_free2_cb_t
) pa_format_info_free2
, NULL
);
2671 /* Called from the main thread */
2672 /* Calculates the intersection between formats supported by the source and
2673 * in_formats, and returns these, in the order of the source's formats. */
2674 pa_idxset
* pa_source_check_formats(pa_source
*s
, pa_idxset
*in_formats
) {
2675 pa_idxset
*out_formats
= pa_idxset_new(NULL
, NULL
), *source_formats
= NULL
;
2676 pa_format_info
*f_source
, *f_in
;
2681 if (!in_formats
|| pa_idxset_isempty(in_formats
))
2684 source_formats
= pa_source_get_formats(s
);
2686 PA_IDXSET_FOREACH(f_source
, source_formats
, i
) {
2687 PA_IDXSET_FOREACH(f_in
, in_formats
, j
) {
2688 if (pa_format_info_is_compatible(f_source
, f_in
))
2689 pa_idxset_put(out_formats
, pa_format_info_copy(f_in
), NULL
);
2695 pa_idxset_free(source_formats
, (pa_free2_cb_t
) pa_format_info_free2
, NULL
);