2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <pulse/utf8.h>
31 #include <pulse/xmalloc.h>
32 #include <pulse/util.h>
33 #include <pulse/internal.h>
35 #include <pulsecore/mix.h>
36 #include <pulsecore/core-subscribe.h>
37 #include <pulsecore/log.h>
38 #include <pulsecore/namereg.h>
39 #include <pulsecore/core-util.h>
41 #include "source-output.h"
43 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
45 PA_DEFINE_PUBLIC_CLASS(pa_source_output
, pa_msgobject
);
47 static void source_output_free(pa_object
* mo
);
48 static void set_real_ratio(pa_source_output
*o
, const pa_cvolume
*v
);
50 pa_source_output_new_data
* pa_source_output_new_data_init(pa_source_output_new_data
*data
) {
54 data
->resample_method
= PA_RESAMPLER_INVALID
;
55 data
->proplist
= pa_proplist_new();
56 data
->volume_writable
= true;
61 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data
*data
, const pa_sample_spec
*spec
) {
64 if ((data
->sample_spec_is_set
= !!spec
))
65 data
->sample_spec
= *spec
;
68 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data
*data
, const pa_channel_map
*map
) {
71 if ((data
->channel_map_is_set
= !!map
))
72 data
->channel_map
= *map
;
75 bool pa_source_output_new_data_is_passthrough(pa_source_output_new_data
*data
) {
78 if (PA_LIKELY(data
->format
) && PA_UNLIKELY(!pa_format_info_is_pcm(data
->format
)))
81 if (PA_UNLIKELY(data
->flags
& PA_SOURCE_OUTPUT_PASSTHROUGH
))
87 void pa_source_output_new_data_set_volume(pa_source_output_new_data
*data
, const pa_cvolume
*volume
) {
89 pa_assert(data
->volume_writable
);
91 if ((data
->volume_is_set
= !!volume
))
92 data
->volume
= *volume
;
95 void pa_source_output_new_data_apply_volume_factor(pa_source_output_new_data
*data
, const pa_cvolume
*volume_factor
) {
97 pa_assert(volume_factor
);
99 if (data
->volume_factor_is_set
)
100 pa_sw_cvolume_multiply(&data
->volume_factor
, &data
->volume_factor
, volume_factor
);
102 data
->volume_factor_is_set
= true;
103 data
->volume_factor
= *volume_factor
;
107 void pa_source_output_new_data_apply_volume_factor_source(pa_source_output_new_data
*data
, const pa_cvolume
*volume_factor
) {
109 pa_assert(volume_factor
);
111 if (data
->volume_factor_source_is_set
)
112 pa_sw_cvolume_multiply(&data
->volume_factor_source
, &data
->volume_factor_source
, volume_factor
);
114 data
->volume_factor_source_is_set
= true;
115 data
->volume_factor_source
= *volume_factor
;
119 void pa_source_output_new_data_set_muted(pa_source_output_new_data
*data
, bool mute
) {
122 data
->muted_is_set
= true;
123 data
->muted
= !!mute
;
126 bool pa_source_output_new_data_set_source(pa_source_output_new_data
*data
, pa_source
*s
, bool save
) {
128 pa_idxset
*formats
= NULL
;
133 if (!data
->req_formats
) {
134 /* We're not working with the extended API */
136 data
->save_source
= save
;
138 /* Extended API: let's see if this source supports the formats the client would like */
139 formats
= pa_source_check_formats(s
, data
->req_formats
);
141 if (formats
&& !pa_idxset_isempty(formats
)) {
142 /* Source supports at least one of the requested formats */
144 data
->save_source
= save
;
145 if (data
->nego_formats
)
146 pa_idxset_free(data
->nego_formats
, (pa_free_cb_t
) pa_format_info_free
);
147 data
->nego_formats
= formats
;
149 /* Source doesn't support any of the formats requested by the client */
151 pa_idxset_free(formats
, (pa_free_cb_t
) pa_format_info_free
);
159 bool pa_source_output_new_data_set_formats(pa_source_output_new_data
*data
, pa_idxset
*formats
) {
163 if (data
->req_formats
)
164 pa_idxset_free(formats
, (pa_free_cb_t
) pa_format_info_free
);
166 data
->req_formats
= formats
;
169 /* Trigger format negotiation */
170 return pa_source_output_new_data_set_source(data
, data
->source
, data
->save_source
);
176 void pa_source_output_new_data_done(pa_source_output_new_data
*data
) {
179 if (data
->req_formats
)
180 pa_idxset_free(data
->req_formats
, (pa_free_cb_t
) pa_format_info_free
);
182 if (data
->nego_formats
)
183 pa_idxset_free(data
->nego_formats
, (pa_free_cb_t
) pa_format_info_free
);
186 pa_format_info_free(data
->format
);
188 pa_proplist_free(data
->proplist
);
191 /* Called from main context */
192 static void reset_callbacks(pa_source_output
*o
) {
196 o
->process_rewind
= NULL
;
197 o
->update_max_rewind
= NULL
;
198 o
->update_source_requested_latency
= NULL
;
199 o
->update_source_latency_range
= NULL
;
200 o
->update_source_fixed_latency
= NULL
;
204 o
->suspend_within_thread
= NULL
;
207 o
->get_latency
= NULL
;
208 o
->state_change
= NULL
;
209 o
->may_move_to
= NULL
;
210 o
->send_event
= NULL
;
211 o
->volume_changed
= NULL
;
212 o
->mute_changed
= NULL
;
215 /* Called from main context */
216 int pa_source_output_new(
217 pa_source_output
**_o
,
219 pa_source_output_new_data
*data
) {
222 pa_resampler
*resampler
= NULL
;
223 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
224 pa_channel_map original_cm
;
233 pa_assert_ctl_context();
236 pa_proplist_update(data
->proplist
, PA_UPDATE_MERGE
, data
->client
->proplist
);
238 if (data
->destination_source
&& (data
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
))
239 data
->volume_writable
= false;
241 if (!data
->req_formats
) {
242 /* From this point on, we want to work only with formats, and get back
243 * to using the sample spec and channel map after all decisions w.r.t.
244 * routing are complete. */
245 pa_idxset
*tmp
= pa_idxset_new(NULL
, NULL
);
246 pa_format_info
*f
= pa_format_info_from_sample_spec(&data
->sample_spec
,
247 data
->channel_map_is_set
? &data
->channel_map
: NULL
);
248 pa_idxset_put(tmp
, f
, NULL
);
249 pa_source_output_new_data_set_formats(data
, tmp
);
252 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_NEW
], data
)) < 0)
255 pa_return_val_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
), -PA_ERR_INVALID
);
260 if (data
->direct_on_input
) {
261 source
= data
->direct_on_input
->sink
->monitor_source
;
262 pa_return_val_if_fail(source
, -PA_ERR_INVALID
);
264 source
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SOURCE
);
265 pa_return_val_if_fail(source
, -PA_ERR_NOENTITY
);
268 pa_source_output_new_data_set_source(data
, source
, false);
271 /* Routing's done, we have a source. Now let's fix the format and set up the
274 /* If something didn't pick a format for us, pick the top-most format since
275 * we assume this is sorted in priority order */
276 if (!data
->format
&& data
->nego_formats
&& !pa_idxset_isempty(data
->nego_formats
))
277 data
->format
= pa_format_info_copy(pa_idxset_first(data
->nego_formats
, NULL
));
279 pa_return_val_if_fail(data
->format
, -PA_ERR_NOTSUPPORTED
);
281 /* Now populate the sample spec and format according to the final
282 * format that we've negotiated */
283 pa_return_val_if_fail(pa_format_info_to_sample_spec(data
->format
, &ss
, &map
) == 0, -PA_ERR_INVALID
);
284 pa_source_output_new_data_set_sample_spec(data
, &ss
);
285 if (pa_format_info_is_pcm(data
->format
) && pa_channel_map_valid(&map
))
286 pa_source_output_new_data_set_channel_map(data
, &map
);
288 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
289 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
291 if (!data
->sample_spec_is_set
)
292 data
->sample_spec
= data
->source
->sample_spec
;
294 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
296 if (!data
->channel_map_is_set
) {
297 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
298 data
->channel_map
= data
->source
->channel_map
;
300 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
303 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
305 /* Don't restore (or save) stream volume for passthrough streams and
306 * prevent attenuation/gain */
307 if (pa_source_output_new_data_is_passthrough(data
)) {
308 data
->volume_is_set
= true;
309 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
310 data
->volume_is_absolute
= true;
311 data
->save_volume
= false;
314 if (!data
->volume_is_set
) {
315 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
316 data
->volume_is_absolute
= false;
317 data
->save_volume
= false;
320 if (!data
->volume_writable
)
321 data
->save_volume
= false;
323 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume
, &data
->sample_spec
), -PA_ERR_INVALID
);
325 if (!data
->volume_factor_is_set
)
326 pa_cvolume_reset(&data
->volume_factor
, data
->sample_spec
.channels
);
328 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor
, &data
->sample_spec
), -PA_ERR_INVALID
);
330 if (!data
->volume_factor_source_is_set
)
331 pa_cvolume_reset(&data
->volume_factor_source
, data
->source
->sample_spec
.channels
);
333 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor_source
, &data
->source
->sample_spec
), -PA_ERR_INVALID
);
335 if (!data
->muted_is_set
)
338 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
) {
339 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
340 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
341 pa_format_info_set_sample_format(data
->format
, data
->sample_spec
.format
);
344 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_RATE
) {
345 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
346 pa_format_info_set_rate(data
->format
, data
->sample_spec
.rate
);
347 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
350 original_cm
= data
->channel_map
;
352 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
353 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
354 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
355 data
->channel_map
= data
->source
->channel_map
;
356 pa_format_info_set_channels(data
->format
, data
->sample_spec
.channels
);
357 pa_format_info_set_channel_map(data
->format
, &data
->channel_map
);
360 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
361 pa_assert(pa_channel_map_valid(&data
->channel_map
));
363 if (!(data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
364 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
365 /* try to change source rate. This is done before the FIXATE hook since
366 module-suspend-on-idle can resume a source */
368 pa_log_info("Trying to change sample rate");
369 if (pa_source_update_rate(data
->source
, data
->sample_spec
.rate
, pa_source_output_new_data_is_passthrough(data
)) >= 0)
370 pa_log_info("Rate changed to %u Hz", data
->source
->sample_spec
.rate
);
373 if (pa_source_output_new_data_is_passthrough(data
) &&
374 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
375 /* rate update failed, or other parts of sample spec didn't match */
377 pa_log_debug("Could not update source sample spec to match passthrough stream");
378 return -PA_ERR_NOTSUPPORTED
;
381 /* Due to the fixing of the sample spec the volume might not match anymore */
382 pa_cvolume_remap(&data
->volume
, &original_cm
, &data
->channel_map
);
384 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
385 data
->resample_method
= core
->resample_method
;
387 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
389 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
392 if ((data
->flags
& PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND
) &&
393 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
394 pa_log("Failed to create source output: source is suspended.");
395 return -PA_ERR_BADSTATE
;
398 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
399 pa_log("Failed to create source output: too many outputs per source.");
400 return -PA_ERR_TOOLARGE
;
403 if ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
404 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
405 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
407 if (!pa_source_output_new_data_is_passthrough(data
)) /* no resampler for passthrough content */
408 if (!(resampler
= pa_resampler_new(
410 &data
->source
->sample_spec
, &data
->source
->channel_map
,
411 &data
->sample_spec
, &data
->channel_map
,
412 data
->resample_method
,
413 ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
414 ((data
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
415 (core
->disable_remixing
|| (data
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
416 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
417 pa_log_warn("Unsupported resampling operation.");
418 return -PA_ERR_NOTSUPPORTED
;
422 o
= pa_msgobject_new(pa_source_output
);
423 o
->parent
.parent
.free
= source_output_free
;
424 o
->parent
.process_msg
= pa_source_output_process_msg
;
427 o
->state
= PA_SOURCE_OUTPUT_INIT
;
428 o
->flags
= data
->flags
;
429 o
->proplist
= pa_proplist_copy(data
->proplist
);
430 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
431 o
->module
= data
->module
;
432 o
->source
= data
->source
;
433 o
->destination_source
= data
->destination_source
;
434 o
->client
= data
->client
;
436 o
->requested_resample_method
= data
->resample_method
;
437 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
438 o
->sample_spec
= data
->sample_spec
;
439 o
->channel_map
= data
->channel_map
;
440 o
->format
= pa_format_info_copy(data
->format
);
442 if (!data
->volume_is_absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
445 /* When the 'absolute' bool is not set then we'll treat the volume
446 * as relative to the source volume even in flat volume mode */
447 remapped
= data
->source
->reference_volume
;
448 pa_cvolume_remap(&remapped
, &data
->source
->channel_map
, &data
->channel_map
);
449 pa_sw_cvolume_multiply(&o
->volume
, &data
->volume
, &remapped
);
451 o
->volume
= data
->volume
;
453 o
->volume_factor
= data
->volume_factor
;
454 o
->volume_factor_source
= data
->volume_factor_source
;
455 o
->real_ratio
= o
->reference_ratio
= data
->volume
;
456 pa_cvolume_reset(&o
->soft_volume
, o
->sample_spec
.channels
);
457 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
458 o
->volume_writable
= data
->volume_writable
;
459 o
->save_volume
= data
->save_volume
;
460 o
->save_source
= data
->save_source
;
461 o
->save_muted
= data
->save_muted
;
463 o
->muted
= data
->muted
;
465 o
->direct_on_input
= data
->direct_on_input
;
470 o
->thread_info
.state
= o
->state
;
471 o
->thread_info
.attached
= false;
472 o
->thread_info
.sample_spec
= o
->sample_spec
;
473 o
->thread_info
.resampler
= resampler
;
474 o
->thread_info
.soft_volume
= o
->soft_volume
;
475 o
->thread_info
.muted
= o
->muted
;
476 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
477 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
479 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
480 "source output delay_memblockq",
484 &o
->source
->sample_spec
,
488 &o
->source
->silence
);
490 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
491 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
494 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
496 if (o
->direct_on_input
)
497 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
499 pt
= pa_proplist_to_string_sep(o
->proplist
, "\n ");
500 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
502 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
504 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
505 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
),
509 /* Don't forget to call pa_source_output_put! */
515 /* Called from main context */
516 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
518 pa_assert_ctl_context();
523 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
524 pa_assert_se(o
->source
->n_corked
-- >= 1);
525 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
526 o
->source
->n_corked
++;
529 /* Called from main context */
530 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
533 pa_assert_ctl_context();
535 if (o
->state
== state
)
538 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_RUNNING
&& pa_source_used_by(o
->source
) == 0 &&
539 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
)) {
540 /* We were uncorked and the source was not playing anything -- let's try
541 * to update the sample rate to avoid resampling */
542 pa_source_update_rate(o
->source
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
));
545 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
) == 0);
547 update_n_corked(o
, state
);
550 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
) {
551 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
553 if (PA_SOURCE_OUTPUT_IS_LINKED(state
))
554 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
557 pa_source_update_status(o
->source
);
560 /* Called from main context */
561 void pa_source_output_unlink(pa_source_output
*o
) {
564 pa_assert_ctl_context();
566 /* See pa_sink_unlink() for a couple of comments how this function
569 pa_source_output_ref(o
);
571 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
574 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
576 if (o
->direct_on_input
)
577 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
579 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
582 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
583 pa_source_output_unref(o
);
586 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
588 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
589 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
591 if (linked
&& o
->source
) {
592 if (pa_source_output_is_passthrough(o
))
593 pa_source_leave_passthrough(o
->source
);
595 /* We might need to update the source's volume if we are in flat volume mode. */
596 if (pa_source_flat_volume_enabled(o
->source
))
597 pa_source_set_volume(o
->source
, NULL
, false, false);
599 if (o
->source
->asyncmsgq
)
600 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
606 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
607 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
611 if (PA_SOURCE_IS_LINKED(pa_source_get_state(o
->source
)))
612 pa_source_update_status(o
->source
);
617 pa_core_maybe_vacuum(o
->core
);
619 pa_source_output_unref(o
);
622 /* Called from main context */
623 static void source_output_free(pa_object
* mo
) {
624 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
627 pa_assert_ctl_context();
628 pa_assert(pa_source_output_refcnt(o
) == 0);
630 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
631 pa_source_output_unlink(o
);
633 pa_log_info("Freeing output %u \"%s\"", o
->index
, pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)));
635 if (o
->thread_info
.delay_memblockq
)
636 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
638 if (o
->thread_info
.resampler
)
639 pa_resampler_free(o
->thread_info
.resampler
);
642 pa_format_info_free(o
->format
);
645 pa_proplist_free(o
->proplist
);
651 /* Called from main context */
652 void pa_source_output_put(pa_source_output
*o
) {
653 pa_source_output_state_t state
;
655 pa_source_output_assert_ref(o
);
656 pa_assert_ctl_context();
658 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
660 /* The following fields must be initialized properly */
664 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
666 update_n_corked(o
, state
);
669 /* We might need to update the source's volume if we are in flat volume mode. */
670 if (pa_source_flat_volume_enabled(o
->source
))
671 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
673 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
674 pa_assert(pa_cvolume_is_norm(&o
->volume
));
675 pa_assert(pa_cvolume_is_norm(&o
->reference_ratio
));
678 set_real_ratio(o
, &o
->volume
);
681 if (pa_source_output_is_passthrough(o
))
682 pa_source_enter_passthrough(o
->source
);
684 o
->thread_info
.soft_volume
= o
->soft_volume
;
685 o
->thread_info
.muted
= o
->muted
;
687 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
689 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
690 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
692 pa_source_update_status(o
->source
);
695 /* Called from main context */
696 void pa_source_output_kill(pa_source_output
*o
) {
697 pa_source_output_assert_ref(o
);
698 pa_assert_ctl_context();
699 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
704 /* Called from main context */
705 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
706 pa_usec_t r
[2] = { 0, 0 };
708 pa_source_output_assert_ref(o
);
709 pa_assert_ctl_context();
710 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
712 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
715 r
[0] += o
->get_latency(o
);
718 *source_latency
= r
[1];
723 /* Called from thread context */
724 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
725 bool need_volume_factor_source
;
728 size_t limit
, mbs
= 0;
730 pa_source_output_assert_ref(o
);
731 pa_source_output_assert_io_context(o
);
732 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
734 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
736 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
739 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
741 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
742 pa_log_debug("Delay queue overflow!");
743 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
, true);
746 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
748 volume_is_norm
= pa_cvolume_is_norm(&o
->thread_info
.soft_volume
) && !o
->thread_info
.muted
;
749 need_volume_factor_source
= !pa_cvolume_is_norm(&o
->volume_factor_source
);
751 if (limit
> 0 && o
->source
->monitor_of
) {
755 /* Hmm, check the latency for knowing how much of the buffered
756 * data is actually still unplayed and might hence still
757 * change. This is suboptimal. Ideally we'd have a call like
758 * pa_sink_get_changeable_size() or so that tells us how much
759 * of the queued data is actually still changeable. Hence
762 latency
= pa_sink_get_latency_within_thread(o
->source
->monitor_of
);
764 n
= pa_usec_to_bytes(latency
, &o
->source
->sample_spec
);
770 /* Implement the delay queue */
771 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
773 bool nvfs
= need_volume_factor_source
;
777 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
779 if (qchunk
.length
> length
)
780 qchunk
.length
= length
;
782 pa_assert(qchunk
.length
> 0);
784 /* It might be necessary to adjust the volume here */
785 if (!volume_is_norm
) {
786 pa_memchunk_make_writable(&qchunk
, 0);
788 if (o
->thread_info
.muted
) {
789 pa_silence_memchunk(&qchunk
, &o
->source
->sample_spec
);
792 } else if (!o
->thread_info
.resampler
&& nvfs
) {
795 /* If we don't need a resampler we can merge the
796 * post and the pre volume adjustment into one */
798 pa_sw_cvolume_multiply(&v
, &o
->thread_info
.soft_volume
, &o
->volume_factor_source
);
799 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &v
);
803 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &o
->thread_info
.soft_volume
);
806 if (!o
->thread_info
.resampler
) {
808 pa_memchunk_make_writable(&qchunk
, 0);
809 pa_volume_memchunk(&qchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
817 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
819 if (qchunk
.length
> mbs
)
822 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
824 if (rchunk
.length
> 0) {
826 pa_memchunk_make_writable(&rchunk
, 0);
827 pa_volume_memchunk(&rchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
834 pa_memblock_unref(rchunk
.memblock
);
837 pa_memblock_unref(qchunk
.memblock
);
838 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
842 /* Called from thread context */
843 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
845 pa_source_output_assert_ref(o
);
846 pa_source_output_assert_io_context(o
);
847 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
848 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
853 if (o
->process_rewind
) {
854 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
856 if (o
->thread_info
.resampler
)
857 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
859 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
862 o
->process_rewind(o
, nbytes
);
864 if (o
->thread_info
.resampler
)
865 pa_resampler_reset(o
->thread_info
.resampler
);
868 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
871 /* Called from thread context */
872 size_t pa_source_output_get_max_rewind(pa_source_output
*o
) {
873 pa_source_output_assert_ref(o
);
874 pa_source_output_assert_io_context(o
);
876 return o
->thread_info
.resampler
? pa_resampler_request(o
->thread_info
.resampler
, o
->source
->thread_info
.max_rewind
) : o
->source
->thread_info
.max_rewind
;
879 /* Called from thread context */
880 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
881 pa_source_output_assert_ref(o
);
882 pa_source_output_assert_io_context(o
);
883 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
884 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
886 if (o
->update_max_rewind
)
887 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
890 /* Called from thread context */
891 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
892 pa_source_output_assert_ref(o
);
893 pa_source_output_assert_io_context(o
);
895 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
896 usec
= o
->source
->thread_info
.fixed_latency
;
898 if (usec
!= (pa_usec_t
) -1)
899 usec
= PA_CLAMP(usec
, o
->source
->thread_info
.min_latency
, o
->source
->thread_info
.max_latency
);
901 o
->thread_info
.requested_source_latency
= usec
;
902 pa_source_invalidate_requested_latency(o
->source
, true);
907 /* Called from main context */
908 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
909 pa_source_output_assert_ref(o
);
910 pa_assert_ctl_context();
912 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
913 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
917 /* If this source output is not realized yet or is being moved, we
918 * have to touch the thread info data directly */
921 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
922 usec
= pa_source_get_fixed_latency(o
->source
);
924 if (usec
!= (pa_usec_t
) -1) {
925 pa_usec_t min_latency
, max_latency
;
926 pa_source_get_latency_range(o
->source
, &min_latency
, &max_latency
);
927 usec
= PA_CLAMP(usec
, min_latency
, max_latency
);
931 o
->thread_info
.requested_source_latency
= usec
;
936 /* Called from main context */
937 pa_usec_t
pa_source_output_get_requested_latency(pa_source_output
*o
) {
938 pa_source_output_assert_ref(o
);
939 pa_assert_ctl_context();
941 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
943 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
947 /* If this source output is not realized yet or is being moved, we
948 * have to touch the thread info data directly */
950 return o
->thread_info
.requested_source_latency
;
953 /* Called from main context */
954 void pa_source_output_set_volume(pa_source_output
*o
, const pa_cvolume
*volume
, bool save
, bool absolute
) {
957 pa_source_output_assert_ref(o
);
958 pa_assert_ctl_context();
959 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
961 pa_assert(pa_cvolume_valid(volume
));
962 pa_assert(volume
->channels
== 1 || pa_cvolume_compatible(volume
, &o
->sample_spec
));
963 pa_assert(o
->volume_writable
);
965 if (!absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
966 v
= o
->source
->reference_volume
;
967 pa_cvolume_remap(&v
, &o
->source
->channel_map
, &o
->channel_map
);
969 if (pa_cvolume_compatible(volume
, &o
->sample_spec
))
970 volume
= pa_sw_cvolume_multiply(&v
, &v
, volume
);
972 volume
= pa_sw_cvolume_multiply_scalar(&v
, &v
, pa_cvolume_max(volume
));
974 if (!pa_cvolume_compatible(volume
, &o
->sample_spec
)) {
976 volume
= pa_cvolume_scale(&v
, pa_cvolume_max(volume
));
980 if (pa_cvolume_equal(volume
, &o
->volume
)) {
981 o
->save_volume
= o
->save_volume
|| save
;
986 o
->save_volume
= save
;
988 if (pa_source_flat_volume_enabled(o
->source
)) {
989 /* We are in flat volume mode, so let's update all source input
990 * volumes and update the flat volume of the source */
992 pa_source_set_volume(o
->source
, NULL
, true, save
);
995 /* OK, we are in normal volume mode. The volume only affects
997 set_real_ratio(o
, volume
);
999 /* Copy the new soft_volume to the thread_info struct */
1000 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
, NULL
, 0, NULL
) == 0);
1003 /* The volume changed, let's tell people so */
1004 if (o
->volume_changed
)
1005 o
->volume_changed(o
);
1007 /* The virtual volume changed, let's tell people so */
1008 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1011 /* Called from main context */
1012 static void set_real_ratio(pa_source_output
*o
, const pa_cvolume
*v
) {
1013 pa_source_output_assert_ref(o
);
1014 pa_assert_ctl_context();
1015 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1016 pa_assert(!v
|| pa_cvolume_compatible(v
, &o
->sample_spec
));
1018 /* This basically calculates:
1020 * o->real_ratio := v
1021 * o->soft_volume := o->real_ratio * o->volume_factor */
1026 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
1028 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1029 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1032 /* Called from main or I/O context */
1033 bool pa_source_output_is_passthrough(pa_source_output
*o
) {
1034 pa_source_output_assert_ref(o
);
1036 if (PA_UNLIKELY(!pa_format_info_is_pcm(o
->format
)))
1039 if (PA_UNLIKELY(o
->flags
& PA_SOURCE_OUTPUT_PASSTHROUGH
))
1045 /* Called from main context */
1046 bool pa_source_output_is_volume_readable(pa_source_output
*o
) {
1047 pa_source_output_assert_ref(o
);
1048 pa_assert_ctl_context();
1050 return !pa_source_output_is_passthrough(o
);
1053 /* Called from main context */
1054 pa_cvolume
*pa_source_output_get_volume(pa_source_output
*o
, pa_cvolume
*volume
, bool absolute
) {
1055 pa_source_output_assert_ref(o
);
1056 pa_assert_ctl_context();
1057 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1058 pa_assert(pa_source_output_is_volume_readable(o
));
1060 if (absolute
|| !pa_source_flat_volume_enabled(o
->source
))
1061 *volume
= o
->volume
;
1063 *volume
= o
->reference_ratio
;
1068 /* Called from main context */
1069 void pa_source_output_set_mute(pa_source_output
*o
, bool mute
, bool save
) {
1070 pa_source_output_assert_ref(o
);
1071 pa_assert_ctl_context();
1072 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1074 if (!o
->muted
== !mute
) {
1075 o
->save_muted
= o
->save_muted
|| mute
;
1080 o
->save_muted
= save
;
1082 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
, NULL
, 0, NULL
) == 0);
1084 /* The mute status changed, let's tell people so */
1085 if (o
->mute_changed
)
1088 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1091 /* Called from main context */
1092 bool pa_source_output_get_mute(pa_source_output
*o
) {
1093 pa_source_output_assert_ref(o
);
1094 pa_assert_ctl_context();
1095 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1100 /* Called from main thread */
1101 void pa_source_output_update_proplist(pa_source_output
*o
, pa_update_mode_t mode
, pa_proplist
*p
) {
1102 pa_source_output_assert_ref(o
);
1103 pa_assert_ctl_context();
1106 pa_proplist_update(o
->proplist
, mode
, p
);
1108 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1109 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1110 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1114 /* Called from main context */
1115 void pa_source_output_cork(pa_source_output
*o
, bool b
) {
1116 pa_source_output_assert_ref(o
);
1117 pa_assert_ctl_context();
1118 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1120 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
1123 /* Called from main context */
1124 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
1125 pa_source_output_assert_ref(o
);
1126 pa_assert_ctl_context();
1127 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1128 pa_return_val_if_fail(o
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
1130 if (o
->sample_spec
.rate
== rate
)
1133 o
->sample_spec
.rate
= rate
;
1135 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
1137 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1141 /* Called from main context */
1142 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
1144 pa_assert_ctl_context();
1145 pa_source_output_assert_ref(o
);
1147 if (!name
&& !pa_proplist_contains(o
->proplist
, PA_PROP_MEDIA_NAME
))
1150 old
= pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
);
1152 if (old
&& name
&& pa_streq(old
, name
))
1156 pa_proplist_sets(o
->proplist
, PA_PROP_MEDIA_NAME
, name
);
1158 pa_proplist_unset(o
->proplist
, PA_PROP_MEDIA_NAME
);
1160 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1161 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1162 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1166 /* Called from main context */
1167 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
1168 pa_source_output_assert_ref(o
);
1169 pa_assert_ctl_context();
1171 return o
->actual_resample_method
;
1174 /* Called from main context */
1175 bool pa_source_output_may_move(pa_source_output
*o
) {
1176 pa_source_output_assert_ref(o
);
1177 pa_assert_ctl_context();
1178 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1180 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
1183 if (o
->direct_on_input
)
1189 static bool find_filter_source_output(pa_source_output
*target
, pa_source
*s
) {
1191 while (s
&& s
->output_from_master
) {
1192 if (s
->output_from_master
== target
)
1194 s
= s
->output_from_master
->source
;
1195 pa_assert(i
++ < 100);
1200 /* Called from main context */
1201 bool pa_source_output_may_move_to(pa_source_output
*o
, pa_source
*dest
) {
1202 pa_source_output_assert_ref(o
);
1203 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1204 pa_source_assert_ref(dest
);
1206 if (dest
== o
->source
)
1209 if (!pa_source_output_may_move(o
))
1212 /* Make sure we're not creating a filter source cycle */
1213 if (find_filter_source_output(o
, dest
)) {
1214 pa_log_debug("Can't connect output to %s, as that would create a cycle.", dest
->name
);
1218 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
1219 pa_log_warn("Failed to move source output: too many outputs per source.");
1224 if (!o
->may_move_to(o
, dest
))
1230 /* Called from main context */
1231 int pa_source_output_start_move(pa_source_output
*o
) {
1235 pa_source_output_assert_ref(o
);
1236 pa_assert_ctl_context();
1237 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1238 pa_assert(o
->source
);
1240 if (!pa_source_output_may_move(o
))
1241 return -PA_ERR_NOTSUPPORTED
;
1243 if ((r
= pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
], o
)) < 0)
1248 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
1250 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1251 pa_assert_se(origin
->n_corked
-- >= 1);
1253 if (pa_source_output_is_passthrough(o
))
1254 pa_source_leave_passthrough(o
->source
);
1256 if (pa_source_flat_volume_enabled(o
->source
))
1257 /* We might need to update the source's volume if we are in flat
1259 pa_source_set_volume(o
->source
, NULL
, false, false);
1261 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
1263 pa_source_update_status(o
->source
);
1266 pa_source_output_unref(o
);
1271 /* Called from main context. If it has an origin source that uses volume sharing,
1272 * then also the origin source and all streams connected to it need to update
1273 * their volume - this function does all that by using recursion. */
1274 static void update_volume_due_to_moving(pa_source_output
*o
, pa_source
*dest
) {
1275 pa_cvolume old_volume
;
1279 pa_assert(o
->source
); /* The destination source should already be set. */
1281 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1282 pa_source
*root_source
;
1283 pa_source_output
*destination_source_output
;
1286 root_source
= pa_source_get_master(o
->source
);
1288 if (PA_UNLIKELY(!root_source
))
1291 if (pa_source_flat_volume_enabled(o
->source
)) {
1292 /* Ok, so the origin source uses volume sharing, and flat volume is
1293 * enabled. The volume will have to be updated as follows:
1295 * o->volume := o->source->real_volume
1296 * (handled later by pa_source_set_volume)
1297 * o->reference_ratio := o->volume / o->source->reference_volume
1298 * (handled later by pa_source_set_volume)
1299 * o->real_ratio stays unchanged
1300 * (streams whose origin source uses volume sharing should
1301 * always have real_ratio of 0 dB)
1302 * o->soft_volume stays unchanged
1303 * (streams whose origin source uses volume sharing should
1304 * always have volume_factor as soft_volume, so no change
1305 * should be needed) */
1307 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1308 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1310 /* Notifications will be sent by pa_source_set_volume(). */
1313 /* Ok, so the origin source uses volume sharing, and flat volume is
1314 * disabled. The volume will have to be updated as follows:
1317 * o->reference_ratio := 0 dB
1318 * o->real_ratio stays unchanged
1319 * (streams whose origin source uses volume sharing should
1320 * always have real_ratio of 0 dB)
1321 * o->soft_volume stays unchanged
1322 * (streams whose origin source uses volume sharing should
1323 * always have volume_factor as soft_volume, so no change
1324 * should be needed) */
1326 old_volume
= o
->volume
;
1327 pa_cvolume_reset(&o
->volume
, o
->volume
.channels
);
1328 pa_cvolume_reset(&o
->reference_ratio
, o
->reference_ratio
.channels
);
1329 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1330 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1332 /* Notify others about the changed source output volume. */
1333 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1334 if (o
->volume_changed
)
1335 o
->volume_changed(o
);
1337 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1341 /* Additionally, the origin source volume needs updating:
1343 * o->destination_source->reference_volume := root_source->reference_volume
1344 * o->destination_source->real_volume := root_source->real_volume
1345 * o->destination_source->soft_volume stays unchanged
1346 * (sources that use volume sharing should always have
1347 * soft_volume of 0 dB) */
1349 old_volume
= o
->destination_source
->reference_volume
;
1351 o
->destination_source
->reference_volume
= root_source
->reference_volume
;
1352 pa_cvolume_remap(&o
->destination_source
->reference_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1354 o
->destination_source
->real_volume
= root_source
->real_volume
;
1355 pa_cvolume_remap(&o
->destination_source
->real_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1357 pa_assert(pa_cvolume_is_norm(&o
->destination_source
->soft_volume
));
1359 /* Notify others about the changed source volume. If you wonder whether
1360 * o->destination_source->set_volume() should be called somewhere, that's not
1361 * the case, because sources that use volume sharing shouldn't have any
1362 * internal volume that set_volume() would update. If you wonder
1363 * whether the thread_info variables should be synced, yes, they
1364 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1366 if (!pa_cvolume_equal(&o
->destination_source
->reference_volume
, &old_volume
))
1367 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->destination_source
->index
);
1369 /* Recursively update origin source outputs. */
1370 PA_IDXSET_FOREACH(destination_source_output
, o
->destination_source
->outputs
, idx
)
1371 update_volume_due_to_moving(destination_source_output
, dest
);
1374 old_volume
= o
->volume
;
1376 if (pa_source_flat_volume_enabled(o
->source
)) {
1377 /* Ok, so this is a regular stream, and flat volume is enabled. The
1378 * volume will have to be updated as follows:
1380 * o->volume := o->reference_ratio * o->source->reference_volume
1381 * o->reference_ratio stays unchanged
1382 * o->real_ratio := o->volume / o->source->real_volume
1383 * (handled later by pa_source_set_volume)
1384 * o->soft_volume := o->real_ratio * o->volume_factor
1385 * (handled later by pa_source_set_volume) */
1387 o
->volume
= o
->source
->reference_volume
;
1388 pa_cvolume_remap(&o
->volume
, &o
->source
->channel_map
, &o
->channel_map
);
1389 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1392 /* Ok, so this is a regular stream, and flat volume is disabled.
1393 * The volume will have to be updated as follows:
1395 * o->volume := o->reference_ratio
1396 * o->reference_ratio stays unchanged
1397 * o->real_ratio := o->reference_ratio
1398 * o->soft_volume := o->real_ratio * o->volume_factor */
1400 o
->volume
= o
->reference_ratio
;
1401 o
->real_ratio
= o
->reference_ratio
;
1402 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1405 /* Notify others about the changed source output volume. */
1406 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1407 /* XXX: In case o->source has flat volume enabled, then real_ratio
1408 * and soft_volume are not updated yet. Let's hope that the
1409 * callback implementation doesn't care about those variables... */
1410 if (o
->volume_changed
)
1411 o
->volume_changed(o
);
1413 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1417 /* If o->source == dest, then recursion has finished, and we can finally call
1418 * pa_source_set_volume(), which will do the rest of the updates. */
1419 if ((o
->source
== dest
) && pa_source_flat_volume_enabled(o
->source
))
1420 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
1423 /* Called from main context */
1424 int pa_source_output_finish_move(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1425 pa_source_output_assert_ref(o
);
1426 pa_assert_ctl_context();
1427 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1428 pa_assert(!o
->source
);
1429 pa_source_assert_ref(dest
);
1431 if (!pa_source_output_may_move_to(o
, dest
))
1432 return -PA_ERR_NOTSUPPORTED
;
1434 if (pa_source_output_is_passthrough(o
) && !pa_source_check_format(dest
, o
->format
)) {
1435 pa_proplist
*p
= pa_proplist_new();
1436 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1437 /* Tell the client what device we want to be on if it is going to
1439 pa_proplist_sets(p
, "device", dest
->name
);
1440 pa_source_output_send_event(o
, PA_STREAM_EVENT_FORMAT_LOST
, p
);
1441 pa_proplist_free(p
);
1442 return -PA_ERR_NOTSUPPORTED
;
1445 if (!(o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
1446 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
)) {
1447 /* try to change dest sink rate if possible without glitches.
1448 module-suspend-on-idle resumes destination source with
1449 SOURCE_OUTPUT_MOVE_FINISH hook */
1451 pa_log_info("Trying to change sample rate");
1452 if (pa_source_update_rate(dest
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
)) >= 0)
1453 pa_log_info("Rate changed to %u Hz", dest
->sample_spec
.rate
);
1460 o
->save_source
= save
;
1461 pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
);
1463 pa_cvolume_remap(&o
->volume_factor_source
, &o
->channel_map
, &o
->source
->channel_map
);
1465 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1466 o
->source
->n_corked
++;
1468 pa_source_output_update_rate(o
);
1470 pa_source_update_status(dest
);
1472 update_volume_due_to_moving(o
, dest
);
1474 if (pa_source_output_is_passthrough(o
))
1475 pa_source_enter_passthrough(o
->source
);
1477 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
1479 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
1481 /* Notify everyone */
1482 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
1483 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1488 /* Called from main context */
1489 void pa_source_output_fail_move(pa_source_output
*o
) {
1491 pa_source_output_assert_ref(o
);
1492 pa_assert_ctl_context();
1493 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1494 pa_assert(!o
->source
);
1496 /* Check if someone wants this source output? */
1497 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL
], o
) == PA_HOOK_STOP
)
1503 pa_source_output_kill(o
);
1506 /* Called from main context */
1507 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1510 pa_source_output_assert_ref(o
);
1511 pa_assert_ctl_context();
1512 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1513 pa_assert(o
->source
);
1514 pa_source_assert_ref(dest
);
1516 if (dest
== o
->source
)
1519 if (!pa_source_output_may_move_to(o
, dest
))
1520 return -PA_ERR_NOTSUPPORTED
;
1522 pa_source_output_ref(o
);
1524 if ((r
= pa_source_output_start_move(o
)) < 0) {
1525 pa_source_output_unref(o
);
1529 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0) {
1530 pa_source_output_fail_move(o
);
1531 pa_source_output_unref(o
);
1535 pa_source_output_unref(o
);
1540 /* Called from IO thread context */
1541 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
1542 pa_source_output_assert_ref(o
);
1543 pa_source_output_assert_io_context(o
);
1545 if (state
== o
->thread_info
.state
)
1548 if (o
->state_change
)
1549 o
->state_change(o
, state
);
1551 o
->thread_info
.state
= state
;
1554 /* Called from IO thread context, except when it is not */
1555 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
1556 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
1557 pa_source_output_assert_ref(o
);
1561 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
1562 pa_usec_t
*r
= userdata
;
1564 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
1565 r
[1] += pa_source_get_latency_within_thread(o
->source
);
1570 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
1572 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1573 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1576 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
1578 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
1582 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
1583 pa_usec_t
*usec
= userdata
;
1585 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
1590 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
1591 pa_usec_t
*r
= userdata
;
1593 *r
= o
->thread_info
.requested_source_latency
;
1597 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
:
1598 if (!pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
)) {
1599 o
->thread_info
.soft_volume
= o
->soft_volume
;
1603 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
:
1604 if (o
->thread_info
.muted
!= o
->muted
) {
1605 o
->thread_info
.muted
= o
->muted
;
1610 return -PA_ERR_NOTIMPLEMENTED
;
1613 /* Called from main context */
1614 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
1615 pa_proplist
*pl
= NULL
;
1616 pa_source_output_send_event_hook_data hook_data
;
1618 pa_source_output_assert_ref(o
);
1619 pa_assert_ctl_context();
1626 data
= pl
= pa_proplist_new();
1628 hook_data
.source_output
= o
;
1629 hook_data
.data
= data
;
1630 hook_data
.event
= event
;
1632 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
1635 o
->send_event(o
, event
, data
);
1639 pa_proplist_free(pl
);
1642 /* Called from main context */
1643 /* Updates the source output's resampler with whatever the current source
1644 * requires -- useful when the underlying source's rate might have changed */
1645 int pa_source_output_update_rate(pa_source_output
*o
) {
1646 pa_resampler
*new_resampler
;
1647 char *memblockq_name
;
1649 pa_source_output_assert_ref(o
);
1650 pa_assert_ctl_context();
1652 if (o
->thread_info
.resampler
&&
1653 pa_sample_spec_equal(pa_resampler_input_sample_spec(o
->thread_info
.resampler
), &o
->source
->sample_spec
) &&
1654 pa_channel_map_equal(pa_resampler_input_channel_map(o
->thread_info
.resampler
), &o
->source
->channel_map
))
1656 new_resampler
= o
->thread_info
.resampler
;
1658 else if (!pa_source_output_is_passthrough(o
) &&
1659 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
1660 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
) ||
1661 !pa_channel_map_equal(&o
->channel_map
, &o
->source
->channel_map
))) {
1663 new_resampler
= pa_resampler_new(o
->core
->mempool
,
1664 &o
->source
->sample_spec
, &o
->source
->channel_map
,
1665 &o
->sample_spec
, &o
->channel_map
,
1666 o
->requested_resample_method
,
1667 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
1668 ((o
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
1669 (o
->core
->disable_remixing
|| (o
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0));
1671 if (!new_resampler
) {
1672 pa_log_warn("Unsupported resampling operation.");
1673 return -PA_ERR_NOTSUPPORTED
;
1676 new_resampler
= NULL
;
1678 if (new_resampler
== o
->thread_info
.resampler
)
1681 if (o
->thread_info
.resampler
)
1682 pa_resampler_free(o
->thread_info
.resampler
);
1684 o
->thread_info
.resampler
= new_resampler
;
1686 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
1688 memblockq_name
= pa_sprintf_malloc("source output delay_memblockq [%u]", o
->index
);
1689 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
1692 MEMBLOCKQ_MAXLENGTH
,
1694 &o
->source
->sample_spec
,
1698 &o
->source
->silence
);
1699 pa_xfree(memblockq_name
);
1701 o
->actual_resample_method
= new_resampler
? pa_resampler_get_method(new_resampler
) : PA_RESAMPLER_INVALID
;
1703 pa_log_debug("Updated resampler for source output %d", o
->index
);