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
);
258 pa_source
*source
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SOURCE
);
259 pa_return_val_if_fail(source
, -PA_ERR_NOENTITY
);
260 pa_source_output_new_data_set_source(data
, source
, false);
263 /* Routing's done, we have a source. Now let's fix the format and set up the
266 /* If something didn't pick a format for us, pick the top-most format since
267 * we assume this is sorted in priority order */
268 if (!data
->format
&& data
->nego_formats
&& !pa_idxset_isempty(data
->nego_formats
))
269 data
->format
= pa_format_info_copy(pa_idxset_first(data
->nego_formats
, NULL
));
271 pa_return_val_if_fail(data
->format
, -PA_ERR_NOTSUPPORTED
);
273 /* Now populate the sample spec and format according to the final
274 * format that we've negotiated */
275 pa_return_val_if_fail(pa_format_info_to_sample_spec(data
->format
, &ss
, &map
) == 0, -PA_ERR_INVALID
);
276 pa_source_output_new_data_set_sample_spec(data
, &ss
);
277 if (pa_format_info_is_pcm(data
->format
) && pa_channel_map_valid(&map
))
278 pa_source_output_new_data_set_channel_map(data
, &map
);
280 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
281 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
283 if (!data
->sample_spec_is_set
)
284 data
->sample_spec
= data
->source
->sample_spec
;
286 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
288 if (!data
->channel_map_is_set
) {
289 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
290 data
->channel_map
= data
->source
->channel_map
;
292 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
295 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
297 /* Don't restore (or save) stream volume for passthrough streams and
298 * prevent attenuation/gain */
299 if (pa_source_output_new_data_is_passthrough(data
)) {
300 data
->volume_is_set
= true;
301 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
302 data
->volume_is_absolute
= true;
303 data
->save_volume
= false;
306 if (!data
->volume_is_set
) {
307 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
308 data
->volume_is_absolute
= false;
309 data
->save_volume
= false;
312 if (!data
->volume_writable
)
313 data
->save_volume
= false;
315 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume
, &data
->sample_spec
), -PA_ERR_INVALID
);
317 if (!data
->volume_factor_is_set
)
318 pa_cvolume_reset(&data
->volume_factor
, data
->sample_spec
.channels
);
320 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor
, &data
->sample_spec
), -PA_ERR_INVALID
);
322 if (!data
->volume_factor_source_is_set
)
323 pa_cvolume_reset(&data
->volume_factor_source
, data
->source
->sample_spec
.channels
);
325 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor_source
, &data
->source
->sample_spec
), -PA_ERR_INVALID
);
327 if (!data
->muted_is_set
)
330 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
) {
331 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
332 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
333 pa_format_info_set_sample_format(data
->format
, data
->sample_spec
.format
);
336 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_RATE
) {
337 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
338 pa_format_info_set_rate(data
->format
, data
->sample_spec
.rate
);
339 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
342 original_cm
= data
->channel_map
;
344 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
345 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
346 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
347 data
->channel_map
= data
->source
->channel_map
;
348 pa_format_info_set_channels(data
->format
, data
->sample_spec
.channels
);
349 pa_format_info_set_channel_map(data
->format
, &data
->channel_map
);
352 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
353 pa_assert(pa_channel_map_valid(&data
->channel_map
));
355 if (!(data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
356 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
357 /* try to change source rate. This is done before the FIXATE hook since
358 module-suspend-on-idle can resume a source */
360 pa_log_info("Trying to change sample rate");
361 if (pa_source_update_rate(data
->source
, data
->sample_spec
.rate
, pa_source_output_new_data_is_passthrough(data
)) == true)
362 pa_log_info("Rate changed to %u Hz", data
->source
->sample_spec
.rate
);
365 if (pa_source_output_new_data_is_passthrough(data
) &&
366 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
367 /* rate update failed, or other parts of sample spec didn't match */
369 pa_log_debug("Could not update source sample spec to match passthrough stream");
370 return -PA_ERR_NOTSUPPORTED
;
373 /* Due to the fixing of the sample spec the volume might not match anymore */
374 pa_cvolume_remap(&data
->volume
, &original_cm
, &data
->channel_map
);
376 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
377 data
->resample_method
= core
->resample_method
;
379 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
381 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
384 if ((data
->flags
& PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND
) &&
385 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
386 pa_log("Failed to create source output: source is suspended.");
387 return -PA_ERR_BADSTATE
;
390 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
391 pa_log("Failed to create source output: too many outputs per source.");
392 return -PA_ERR_TOOLARGE
;
395 if ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
396 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
397 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
399 if (!pa_source_output_new_data_is_passthrough(data
)) /* no resampler for passthrough content */
400 if (!(resampler
= pa_resampler_new(
402 &data
->source
->sample_spec
, &data
->source
->channel_map
,
403 &data
->sample_spec
, &data
->channel_map
,
404 data
->resample_method
,
405 ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
406 ((data
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
407 (core
->disable_remixing
|| (data
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
408 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
409 pa_log_warn("Unsupported resampling operation.");
410 return -PA_ERR_NOTSUPPORTED
;
414 o
= pa_msgobject_new(pa_source_output
);
415 o
->parent
.parent
.free
= source_output_free
;
416 o
->parent
.process_msg
= pa_source_output_process_msg
;
419 o
->state
= PA_SOURCE_OUTPUT_INIT
;
420 o
->flags
= data
->flags
;
421 o
->proplist
= pa_proplist_copy(data
->proplist
);
422 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
423 o
->module
= data
->module
;
424 o
->source
= data
->source
;
425 o
->destination_source
= data
->destination_source
;
426 o
->client
= data
->client
;
428 o
->requested_resample_method
= data
->resample_method
;
429 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
430 o
->sample_spec
= data
->sample_spec
;
431 o
->channel_map
= data
->channel_map
;
432 o
->format
= pa_format_info_copy(data
->format
);
434 if (!data
->volume_is_absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
437 /* When the 'absolute' bool is not set then we'll treat the volume
438 * as relative to the source volume even in flat volume mode */
439 remapped
= data
->source
->reference_volume
;
440 pa_cvolume_remap(&remapped
, &data
->source
->channel_map
, &data
->channel_map
);
441 pa_sw_cvolume_multiply(&o
->volume
, &data
->volume
, &remapped
);
443 o
->volume
= data
->volume
;
445 o
->volume_factor
= data
->volume_factor
;
446 o
->volume_factor_source
= data
->volume_factor_source
;
447 o
->real_ratio
= o
->reference_ratio
= data
->volume
;
448 pa_cvolume_reset(&o
->soft_volume
, o
->sample_spec
.channels
);
449 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
450 o
->volume_writable
= data
->volume_writable
;
451 o
->save_volume
= data
->save_volume
;
452 o
->save_source
= data
->save_source
;
453 o
->save_muted
= data
->save_muted
;
455 o
->muted
= data
->muted
;
457 o
->direct_on_input
= data
->direct_on_input
;
462 o
->thread_info
.state
= o
->state
;
463 o
->thread_info
.attached
= false;
464 o
->thread_info
.sample_spec
= o
->sample_spec
;
465 o
->thread_info
.resampler
= resampler
;
466 o
->thread_info
.soft_volume
= o
->soft_volume
;
467 o
->thread_info
.muted
= o
->muted
;
468 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
469 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
471 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
472 "source output delay_memblockq",
476 &o
->source
->sample_spec
,
480 &o
->source
->silence
);
482 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
483 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
486 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
488 if (o
->direct_on_input
)
489 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
491 pt
= pa_proplist_to_string_sep(o
->proplist
, "\n ");
492 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
494 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
496 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
497 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
),
501 /* Don't forget to call pa_source_output_put! */
507 /* Called from main context */
508 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
510 pa_assert_ctl_context();
515 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
516 pa_assert_se(o
->source
->n_corked
-- >= 1);
517 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
518 o
->source
->n_corked
++;
521 /* Called from main context */
522 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
525 pa_assert_ctl_context();
527 if (o
->state
== state
)
530 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_RUNNING
&& pa_source_used_by(o
->source
) == 0 &&
531 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
)) {
532 /* We were uncorked and the source was not playing anything -- let's try
533 * to update the sample rate to avoid resampling */
534 pa_source_update_rate(o
->source
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
));
537 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);
539 update_n_corked(o
, state
);
542 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
) {
543 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
545 if (PA_SOURCE_OUTPUT_IS_LINKED(state
))
546 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
549 pa_source_update_status(o
->source
);
552 /* Called from main context */
553 void pa_source_output_unlink(pa_source_output
*o
) {
556 pa_assert_ctl_context();
558 /* See pa_sink_unlink() for a couple of comments how this function
561 pa_source_output_ref(o
);
563 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
566 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
568 if (o
->direct_on_input
)
569 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
571 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
574 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
575 pa_source_output_unref(o
);
578 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
580 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
581 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
583 if (linked
&& o
->source
) {
584 if (pa_source_output_is_passthrough(o
))
585 pa_source_leave_passthrough(o
->source
);
587 /* We might need to update the source's volume if we are in flat volume mode. */
588 if (pa_source_flat_volume_enabled(o
->source
))
589 pa_source_set_volume(o
->source
, NULL
, false, false);
591 if (o
->source
->asyncmsgq
)
592 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
598 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
599 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
603 if (PA_SOURCE_IS_LINKED(pa_source_get_state(o
->source
)))
604 pa_source_update_status(o
->source
);
609 pa_core_maybe_vacuum(o
->core
);
611 pa_source_output_unref(o
);
614 /* Called from main context */
615 static void source_output_free(pa_object
* mo
) {
616 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
619 pa_assert_ctl_context();
620 pa_assert(pa_source_output_refcnt(o
) == 0);
622 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
623 pa_source_output_unlink(o
);
625 pa_log_info("Freeing output %u \"%s\"", o
->index
, pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)));
627 if (o
->thread_info
.delay_memblockq
)
628 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
630 if (o
->thread_info
.resampler
)
631 pa_resampler_free(o
->thread_info
.resampler
);
634 pa_format_info_free(o
->format
);
637 pa_proplist_free(o
->proplist
);
643 /* Called from main context */
644 void pa_source_output_put(pa_source_output
*o
) {
645 pa_source_output_state_t state
;
647 pa_source_output_assert_ref(o
);
648 pa_assert_ctl_context();
650 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
652 /* The following fields must be initialized properly */
656 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
658 update_n_corked(o
, state
);
661 /* We might need to update the source's volume if we are in flat volume mode. */
662 if (pa_source_flat_volume_enabled(o
->source
))
663 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
665 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
666 pa_assert(pa_cvolume_is_norm(&o
->volume
));
667 pa_assert(pa_cvolume_is_norm(&o
->reference_ratio
));
670 set_real_ratio(o
, &o
->volume
);
673 if (pa_source_output_is_passthrough(o
))
674 pa_source_enter_passthrough(o
->source
);
676 o
->thread_info
.soft_volume
= o
->soft_volume
;
677 o
->thread_info
.muted
= o
->muted
;
679 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
681 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
682 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
684 pa_source_update_status(o
->source
);
687 /* Called from main context */
688 void pa_source_output_kill(pa_source_output
*o
) {
689 pa_source_output_assert_ref(o
);
690 pa_assert_ctl_context();
691 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
696 /* Called from main context */
697 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
698 pa_usec_t r
[2] = { 0, 0 };
700 pa_source_output_assert_ref(o
);
701 pa_assert_ctl_context();
702 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
704 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
707 r
[0] += o
->get_latency(o
);
710 *source_latency
= r
[1];
715 /* Called from thread context */
716 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
717 bool need_volume_factor_source
;
720 size_t limit
, mbs
= 0;
722 pa_source_output_assert_ref(o
);
723 pa_source_output_assert_io_context(o
);
724 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
726 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
728 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
731 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
733 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
734 pa_log_debug("Delay queue overflow!");
735 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
, true);
738 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
740 volume_is_norm
= pa_cvolume_is_norm(&o
->thread_info
.soft_volume
) && !o
->thread_info
.muted
;
741 need_volume_factor_source
= !pa_cvolume_is_norm(&o
->volume_factor_source
);
743 if (limit
> 0 && o
->source
->monitor_of
) {
747 /* Hmm, check the latency for knowing how much of the buffered
748 * data is actually still unplayed and might hence still
749 * change. This is suboptimal. Ideally we'd have a call like
750 * pa_sink_get_changeable_size() or so that tells us how much
751 * of the queued data is actually still changeable. Hence
754 latency
= pa_sink_get_latency_within_thread(o
->source
->monitor_of
);
756 n
= pa_usec_to_bytes(latency
, &o
->source
->sample_spec
);
762 /* Implement the delay queue */
763 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
765 bool nvfs
= need_volume_factor_source
;
769 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
771 if (qchunk
.length
> length
)
772 qchunk
.length
= length
;
774 pa_assert(qchunk
.length
> 0);
776 /* It might be necessary to adjust the volume here */
777 if (!volume_is_norm
) {
778 pa_memchunk_make_writable(&qchunk
, 0);
780 if (o
->thread_info
.muted
) {
781 pa_silence_memchunk(&qchunk
, &o
->source
->sample_spec
);
784 } else if (!o
->thread_info
.resampler
&& nvfs
) {
787 /* If we don't need a resampler we can merge the
788 * post and the pre volume adjustment into one */
790 pa_sw_cvolume_multiply(&v
, &o
->thread_info
.soft_volume
, &o
->volume_factor_source
);
791 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &v
);
795 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &o
->thread_info
.soft_volume
);
798 if (!o
->thread_info
.resampler
) {
800 pa_memchunk_make_writable(&qchunk
, 0);
801 pa_volume_memchunk(&qchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
809 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
811 if (qchunk
.length
> mbs
)
814 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
816 if (rchunk
.length
> 0) {
818 pa_memchunk_make_writable(&rchunk
, 0);
819 pa_volume_memchunk(&rchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
826 pa_memblock_unref(rchunk
.memblock
);
829 pa_memblock_unref(qchunk
.memblock
);
830 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
834 /* Called from thread context */
835 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
837 pa_source_output_assert_ref(o
);
838 pa_source_output_assert_io_context(o
);
839 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
840 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
845 if (o
->process_rewind
) {
846 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
848 if (o
->thread_info
.resampler
)
849 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
851 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
854 o
->process_rewind(o
, nbytes
);
856 if (o
->thread_info
.resampler
)
857 pa_resampler_reset(o
->thread_info
.resampler
);
860 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
863 /* Called from thread context */
864 size_t pa_source_output_get_max_rewind(pa_source_output
*o
) {
865 pa_source_output_assert_ref(o
);
866 pa_source_output_assert_io_context(o
);
868 return o
->thread_info
.resampler
? pa_resampler_request(o
->thread_info
.resampler
, o
->source
->thread_info
.max_rewind
) : o
->source
->thread_info
.max_rewind
;
871 /* Called from thread context */
872 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
873 pa_source_output_assert_ref(o
);
874 pa_source_output_assert_io_context(o
);
875 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
876 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
878 if (o
->update_max_rewind
)
879 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
882 /* Called from thread context */
883 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
884 pa_source_output_assert_ref(o
);
885 pa_source_output_assert_io_context(o
);
887 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
888 usec
= o
->source
->thread_info
.fixed_latency
;
890 if (usec
!= (pa_usec_t
) -1)
891 usec
= PA_CLAMP(usec
, o
->source
->thread_info
.min_latency
, o
->source
->thread_info
.max_latency
);
893 o
->thread_info
.requested_source_latency
= usec
;
894 pa_source_invalidate_requested_latency(o
->source
, true);
899 /* Called from main context */
900 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
901 pa_source_output_assert_ref(o
);
902 pa_assert_ctl_context();
904 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
905 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
909 /* If this source output is not realized yet or is being moved, we
910 * have to touch the thread info data directly */
913 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
914 usec
= pa_source_get_fixed_latency(o
->source
);
916 if (usec
!= (pa_usec_t
) -1) {
917 pa_usec_t min_latency
, max_latency
;
918 pa_source_get_latency_range(o
->source
, &min_latency
, &max_latency
);
919 usec
= PA_CLAMP(usec
, min_latency
, max_latency
);
923 o
->thread_info
.requested_source_latency
= usec
;
928 /* Called from main context */
929 pa_usec_t
pa_source_output_get_requested_latency(pa_source_output
*o
) {
930 pa_source_output_assert_ref(o
);
931 pa_assert_ctl_context();
933 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
935 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
939 /* If this source output is not realized yet or is being moved, we
940 * have to touch the thread info data directly */
942 return o
->thread_info
.requested_source_latency
;
945 /* Called from main context */
946 void pa_source_output_set_volume(pa_source_output
*o
, const pa_cvolume
*volume
, bool save
, bool absolute
) {
949 pa_source_output_assert_ref(o
);
950 pa_assert_ctl_context();
951 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
953 pa_assert(pa_cvolume_valid(volume
));
954 pa_assert(volume
->channels
== 1 || pa_cvolume_compatible(volume
, &o
->sample_spec
));
955 pa_assert(o
->volume_writable
);
957 if (!absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
958 v
= o
->source
->reference_volume
;
959 pa_cvolume_remap(&v
, &o
->source
->channel_map
, &o
->channel_map
);
961 if (pa_cvolume_compatible(volume
, &o
->sample_spec
))
962 volume
= pa_sw_cvolume_multiply(&v
, &v
, volume
);
964 volume
= pa_sw_cvolume_multiply_scalar(&v
, &v
, pa_cvolume_max(volume
));
966 if (!pa_cvolume_compatible(volume
, &o
->sample_spec
)) {
968 volume
= pa_cvolume_scale(&v
, pa_cvolume_max(volume
));
972 if (pa_cvolume_equal(volume
, &o
->volume
)) {
973 o
->save_volume
= o
->save_volume
|| save
;
978 o
->save_volume
= save
;
980 if (pa_source_flat_volume_enabled(o
->source
)) {
981 /* We are in flat volume mode, so let's update all source input
982 * volumes and update the flat volume of the source */
984 pa_source_set_volume(o
->source
, NULL
, true, save
);
987 /* OK, we are in normal volume mode. The volume only affects
989 set_real_ratio(o
, volume
);
991 /* Copy the new soft_volume to the thread_info struct */
992 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
, NULL
, 0, NULL
) == 0);
995 /* The volume changed, let's tell people so */
996 if (o
->volume_changed
)
997 o
->volume_changed(o
);
999 /* The virtual volume changed, let's tell people so */
1000 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1003 /* Called from main context */
1004 static void set_real_ratio(pa_source_output
*o
, const pa_cvolume
*v
) {
1005 pa_source_output_assert_ref(o
);
1006 pa_assert_ctl_context();
1007 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1008 pa_assert(!v
|| pa_cvolume_compatible(v
, &o
->sample_spec
));
1010 /* This basically calculates:
1012 * o->real_ratio := v
1013 * o->soft_volume := o->real_ratio * o->volume_factor */
1018 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
1020 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1021 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1024 /* Called from main or I/O context */
1025 bool pa_source_output_is_passthrough(pa_source_output
*o
) {
1026 pa_source_output_assert_ref(o
);
1028 if (PA_UNLIKELY(!pa_format_info_is_pcm(o
->format
)))
1031 if (PA_UNLIKELY(o
->flags
& PA_SOURCE_OUTPUT_PASSTHROUGH
))
1037 /* Called from main context */
1038 bool pa_source_output_is_volume_readable(pa_source_output
*o
) {
1039 pa_source_output_assert_ref(o
);
1040 pa_assert_ctl_context();
1042 return !pa_source_output_is_passthrough(o
);
1045 /* Called from main context */
1046 pa_cvolume
*pa_source_output_get_volume(pa_source_output
*o
, pa_cvolume
*volume
, bool absolute
) {
1047 pa_source_output_assert_ref(o
);
1048 pa_assert_ctl_context();
1049 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1050 pa_assert(pa_source_output_is_volume_readable(o
));
1052 if (absolute
|| !pa_source_flat_volume_enabled(o
->source
))
1053 *volume
= o
->volume
;
1055 *volume
= o
->reference_ratio
;
1060 /* Called from main context */
1061 void pa_source_output_set_mute(pa_source_output
*o
, bool mute
, bool save
) {
1062 pa_source_output_assert_ref(o
);
1063 pa_assert_ctl_context();
1064 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1066 if (!o
->muted
== !mute
) {
1067 o
->save_muted
= o
->save_muted
|| mute
;
1072 o
->save_muted
= save
;
1074 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
, NULL
, 0, NULL
) == 0);
1076 /* The mute status changed, let's tell people so */
1077 if (o
->mute_changed
)
1080 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1083 /* Called from main context */
1084 bool pa_source_output_get_mute(pa_source_output
*o
) {
1085 pa_source_output_assert_ref(o
);
1086 pa_assert_ctl_context();
1087 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1092 /* Called from main thread */
1093 void pa_source_output_update_proplist(pa_source_output
*o
, pa_update_mode_t mode
, pa_proplist
*p
) {
1094 pa_source_output_assert_ref(o
);
1095 pa_assert_ctl_context();
1098 pa_proplist_update(o
->proplist
, mode
, p
);
1100 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1101 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1102 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1106 /* Called from main context */
1107 void pa_source_output_cork(pa_source_output
*o
, bool b
) {
1108 pa_source_output_assert_ref(o
);
1109 pa_assert_ctl_context();
1110 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1112 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
1115 /* Called from main context */
1116 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
1117 pa_source_output_assert_ref(o
);
1118 pa_assert_ctl_context();
1119 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1120 pa_return_val_if_fail(o
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
1122 if (o
->sample_spec
.rate
== rate
)
1125 o
->sample_spec
.rate
= rate
;
1127 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
1129 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1133 /* Called from main context */
1134 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
1136 pa_assert_ctl_context();
1137 pa_source_output_assert_ref(o
);
1139 if (!name
&& !pa_proplist_contains(o
->proplist
, PA_PROP_MEDIA_NAME
))
1142 old
= pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
);
1144 if (old
&& name
&& pa_streq(old
, name
))
1148 pa_proplist_sets(o
->proplist
, PA_PROP_MEDIA_NAME
, name
);
1150 pa_proplist_unset(o
->proplist
, PA_PROP_MEDIA_NAME
);
1152 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1153 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1154 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1158 /* Called from main context */
1159 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
1160 pa_source_output_assert_ref(o
);
1161 pa_assert_ctl_context();
1163 return o
->actual_resample_method
;
1166 /* Called from main context */
1167 bool pa_source_output_may_move(pa_source_output
*o
) {
1168 pa_source_output_assert_ref(o
);
1169 pa_assert_ctl_context();
1170 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1172 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
1175 if (o
->direct_on_input
)
1181 static bool find_filter_source_output(pa_source_output
*target
, pa_source
*s
) {
1183 while (s
&& s
->output_from_master
) {
1184 if (s
->output_from_master
== target
)
1186 s
= s
->output_from_master
->source
;
1187 pa_assert(i
++ < 100);
1192 /* Called from main context */
1193 bool pa_source_output_may_move_to(pa_source_output
*o
, pa_source
*dest
) {
1194 pa_source_output_assert_ref(o
);
1195 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1196 pa_source_assert_ref(dest
);
1198 if (dest
== o
->source
)
1201 if (!pa_source_output_may_move(o
))
1204 /* Make sure we're not creating a filter source cycle */
1205 if (find_filter_source_output(o
, dest
)) {
1206 pa_log_debug("Can't connect output to %s, as that would create a cycle.", dest
->name
);
1210 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
1211 pa_log_warn("Failed to move source output: too many outputs per source.");
1216 if (!o
->may_move_to(o
, dest
))
1222 /* Called from main context */
1223 int pa_source_output_start_move(pa_source_output
*o
) {
1227 pa_source_output_assert_ref(o
);
1228 pa_assert_ctl_context();
1229 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1230 pa_assert(o
->source
);
1232 if (!pa_source_output_may_move(o
))
1233 return -PA_ERR_NOTSUPPORTED
;
1235 if ((r
= pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
], o
)) < 0)
1240 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
1242 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1243 pa_assert_se(origin
->n_corked
-- >= 1);
1245 if (pa_source_output_is_passthrough(o
))
1246 pa_source_leave_passthrough(o
->source
);
1248 if (pa_source_flat_volume_enabled(o
->source
))
1249 /* We might need to update the source's volume if we are in flat
1251 pa_source_set_volume(o
->source
, NULL
, false, false);
1253 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
1255 pa_source_update_status(o
->source
);
1258 pa_source_output_unref(o
);
1263 /* Called from main context. If it has an origin source that uses volume sharing,
1264 * then also the origin source and all streams connected to it need to update
1265 * their volume - this function does all that by using recursion. */
1266 static void update_volume_due_to_moving(pa_source_output
*o
, pa_source
*dest
) {
1267 pa_cvolume old_volume
;
1271 pa_assert(o
->source
); /* The destination source should already be set. */
1273 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1274 pa_source
*root_source
;
1275 pa_source_output
*destination_source_output
;
1278 root_source
= pa_source_get_master(o
->source
);
1280 if (PA_UNLIKELY(!root_source
))
1283 if (pa_source_flat_volume_enabled(o
->source
)) {
1284 /* Ok, so the origin source uses volume sharing, and flat volume is
1285 * enabled. The volume will have to be updated as follows:
1287 * o->volume := o->source->real_volume
1288 * (handled later by pa_source_set_volume)
1289 * o->reference_ratio := o->volume / o->source->reference_volume
1290 * (handled later by pa_source_set_volume)
1291 * o->real_ratio stays unchanged
1292 * (streams whose origin source uses volume sharing should
1293 * always have real_ratio of 0 dB)
1294 * o->soft_volume stays unchanged
1295 * (streams whose origin source uses volume sharing should
1296 * always have volume_factor as soft_volume, so no change
1297 * should be needed) */
1299 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1300 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1302 /* Notifications will be sent by pa_source_set_volume(). */
1305 /* Ok, so the origin source uses volume sharing, and flat volume is
1306 * disabled. The volume will have to be updated as follows:
1309 * o->reference_ratio := 0 dB
1310 * o->real_ratio stays unchanged
1311 * (streams whose origin source uses volume sharing should
1312 * always have real_ratio of 0 dB)
1313 * o->soft_volume stays unchanged
1314 * (streams whose origin source uses volume sharing should
1315 * always have volume_factor as soft_volume, so no change
1316 * should be needed) */
1318 old_volume
= o
->volume
;
1319 pa_cvolume_reset(&o
->volume
, o
->volume
.channels
);
1320 pa_cvolume_reset(&o
->reference_ratio
, o
->reference_ratio
.channels
);
1321 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1322 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1324 /* Notify others about the changed source output volume. */
1325 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1326 if (o
->volume_changed
)
1327 o
->volume_changed(o
);
1329 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1333 /* Additionally, the origin source volume needs updating:
1335 * o->destination_source->reference_volume := root_source->reference_volume
1336 * o->destination_source->real_volume := root_source->real_volume
1337 * o->destination_source->soft_volume stays unchanged
1338 * (sources that use volume sharing should always have
1339 * soft_volume of 0 dB) */
1341 old_volume
= o
->destination_source
->reference_volume
;
1343 o
->destination_source
->reference_volume
= root_source
->reference_volume
;
1344 pa_cvolume_remap(&o
->destination_source
->reference_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1346 o
->destination_source
->real_volume
= root_source
->real_volume
;
1347 pa_cvolume_remap(&o
->destination_source
->real_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1349 pa_assert(pa_cvolume_is_norm(&o
->destination_source
->soft_volume
));
1351 /* Notify others about the changed source volume. If you wonder whether
1352 * o->destination_source->set_volume() should be called somewhere, that's not
1353 * the case, because sources that use volume sharing shouldn't have any
1354 * internal volume that set_volume() would update. If you wonder
1355 * whether the thread_info variables should be synced, yes, they
1356 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1358 if (!pa_cvolume_equal(&o
->destination_source
->reference_volume
, &old_volume
))
1359 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->destination_source
->index
);
1361 /* Recursively update origin source outputs. */
1362 PA_IDXSET_FOREACH(destination_source_output
, o
->destination_source
->outputs
, idx
)
1363 update_volume_due_to_moving(destination_source_output
, dest
);
1366 old_volume
= o
->volume
;
1368 if (pa_source_flat_volume_enabled(o
->source
)) {
1369 /* Ok, so this is a regular stream, and flat volume is enabled. The
1370 * volume will have to be updated as follows:
1372 * o->volume := o->reference_ratio * o->source->reference_volume
1373 * o->reference_ratio stays unchanged
1374 * o->real_ratio := o->volume / o->source->real_volume
1375 * (handled later by pa_source_set_volume)
1376 * o->soft_volume := o->real_ratio * o->volume_factor
1377 * (handled later by pa_source_set_volume) */
1379 o
->volume
= o
->source
->reference_volume
;
1380 pa_cvolume_remap(&o
->volume
, &o
->source
->channel_map
, &o
->channel_map
);
1381 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1384 /* Ok, so this is a regular stream, and flat volume is disabled.
1385 * The volume will have to be updated as follows:
1387 * o->volume := o->reference_ratio
1388 * o->reference_ratio stays unchanged
1389 * o->real_ratio := o->reference_ratio
1390 * o->soft_volume := o->real_ratio * o->volume_factor */
1392 o
->volume
= o
->reference_ratio
;
1393 o
->real_ratio
= o
->reference_ratio
;
1394 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1397 /* Notify others about the changed source output volume. */
1398 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1399 /* XXX: In case o->source has flat volume enabled, then real_ratio
1400 * and soft_volume are not updated yet. Let's hope that the
1401 * callback implementation doesn't care about those variables... */
1402 if (o
->volume_changed
)
1403 o
->volume_changed(o
);
1405 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1409 /* If o->source == dest, then recursion has finished, and we can finally call
1410 * pa_source_set_volume(), which will do the rest of the updates. */
1411 if ((o
->source
== dest
) && pa_source_flat_volume_enabled(o
->source
))
1412 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
1415 /* Called from main context */
1416 int pa_source_output_finish_move(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1417 pa_source_output_assert_ref(o
);
1418 pa_assert_ctl_context();
1419 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1420 pa_assert(!o
->source
);
1421 pa_source_assert_ref(dest
);
1423 if (!pa_source_output_may_move_to(o
, dest
))
1424 return -PA_ERR_NOTSUPPORTED
;
1426 if (pa_source_output_is_passthrough(o
) && !pa_source_check_format(dest
, o
->format
)) {
1427 pa_proplist
*p
= pa_proplist_new();
1428 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1429 /* Tell the client what device we want to be on if it is going to
1431 pa_proplist_sets(p
, "device", dest
->name
);
1432 pa_source_output_send_event(o
, PA_STREAM_EVENT_FORMAT_LOST
, p
);
1433 pa_proplist_free(p
);
1434 return -PA_ERR_NOTSUPPORTED
;
1437 if (!(o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
1438 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
)) {
1439 /* try to change dest sink rate if possible without glitches.
1440 module-suspend-on-idle resumes destination source with
1441 SOURCE_OUTPUT_MOVE_FINISH hook */
1443 pa_log_info("Trying to change sample rate");
1444 if (pa_source_update_rate(dest
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
)) == true)
1445 pa_log_info("Rate changed to %u Hz", dest
->sample_spec
.rate
);
1452 o
->save_source
= save
;
1453 pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
);
1455 pa_cvolume_remap(&o
->volume_factor_source
, &o
->channel_map
, &o
->source
->channel_map
);
1457 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1458 o
->source
->n_corked
++;
1460 pa_source_output_update_rate(o
);
1462 pa_source_update_status(dest
);
1464 update_volume_due_to_moving(o
, dest
);
1466 if (pa_source_output_is_passthrough(o
))
1467 pa_source_enter_passthrough(o
->source
);
1469 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
1471 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
1473 /* Notify everyone */
1474 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
1475 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1480 /* Called from main context */
1481 void pa_source_output_fail_move(pa_source_output
*o
) {
1483 pa_source_output_assert_ref(o
);
1484 pa_assert_ctl_context();
1485 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1486 pa_assert(!o
->source
);
1488 /* Check if someone wants this source output? */
1489 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL
], o
) == PA_HOOK_STOP
)
1495 pa_source_output_kill(o
);
1498 /* Called from main context */
1499 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1502 pa_source_output_assert_ref(o
);
1503 pa_assert_ctl_context();
1504 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1505 pa_assert(o
->source
);
1506 pa_source_assert_ref(dest
);
1508 if (dest
== o
->source
)
1511 if (!pa_source_output_may_move_to(o
, dest
))
1512 return -PA_ERR_NOTSUPPORTED
;
1514 pa_source_output_ref(o
);
1516 if ((r
= pa_source_output_start_move(o
)) < 0) {
1517 pa_source_output_unref(o
);
1521 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0) {
1522 pa_source_output_fail_move(o
);
1523 pa_source_output_unref(o
);
1527 pa_source_output_unref(o
);
1532 /* Called from IO thread context */
1533 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
1534 pa_source_output_assert_ref(o
);
1535 pa_source_output_assert_io_context(o
);
1537 if (state
== o
->thread_info
.state
)
1540 if (o
->state_change
)
1541 o
->state_change(o
, state
);
1543 o
->thread_info
.state
= state
;
1546 /* Called from IO thread context, except when it is not */
1547 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
1548 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
1549 pa_source_output_assert_ref(o
);
1553 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
1554 pa_usec_t
*r
= userdata
;
1556 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
1557 r
[1] += pa_source_get_latency_within_thread(o
->source
);
1562 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
1564 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1565 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1568 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
1570 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
1574 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
1575 pa_usec_t
*usec
= userdata
;
1577 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
1582 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
1583 pa_usec_t
*r
= userdata
;
1585 *r
= o
->thread_info
.requested_source_latency
;
1589 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
:
1590 if (!pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
)) {
1591 o
->thread_info
.soft_volume
= o
->soft_volume
;
1595 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
:
1596 if (o
->thread_info
.muted
!= o
->muted
) {
1597 o
->thread_info
.muted
= o
->muted
;
1602 return -PA_ERR_NOTIMPLEMENTED
;
1605 /* Called from main context */
1606 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
1607 pa_proplist
*pl
= NULL
;
1608 pa_source_output_send_event_hook_data hook_data
;
1610 pa_source_output_assert_ref(o
);
1611 pa_assert_ctl_context();
1618 data
= pl
= pa_proplist_new();
1620 hook_data
.source_output
= o
;
1621 hook_data
.data
= data
;
1622 hook_data
.event
= event
;
1624 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
1627 o
->send_event(o
, event
, data
);
1631 pa_proplist_free(pl
);
1634 /* Called from main context */
1635 /* Updates the source output's resampler with whatever the current source
1636 * requires -- useful when the underlying source's rate might have changed */
1637 int pa_source_output_update_rate(pa_source_output
*o
) {
1638 pa_resampler
*new_resampler
;
1639 char *memblockq_name
;
1641 pa_source_output_assert_ref(o
);
1642 pa_assert_ctl_context();
1644 if (o
->thread_info
.resampler
&&
1645 pa_sample_spec_equal(pa_resampler_input_sample_spec(o
->thread_info
.resampler
), &o
->source
->sample_spec
) &&
1646 pa_channel_map_equal(pa_resampler_input_channel_map(o
->thread_info
.resampler
), &o
->source
->channel_map
))
1648 new_resampler
= o
->thread_info
.resampler
;
1650 else if (!pa_source_output_is_passthrough(o
) &&
1651 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
1652 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
) ||
1653 !pa_channel_map_equal(&o
->channel_map
, &o
->source
->channel_map
))) {
1655 new_resampler
= pa_resampler_new(o
->core
->mempool
,
1656 &o
->source
->sample_spec
, &o
->source
->channel_map
,
1657 &o
->sample_spec
, &o
->channel_map
,
1658 o
->requested_resample_method
,
1659 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
1660 ((o
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
1661 (o
->core
->disable_remixing
|| (o
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0));
1663 if (!new_resampler
) {
1664 pa_log_warn("Unsupported resampling operation.");
1665 return -PA_ERR_NOTSUPPORTED
;
1668 new_resampler
= NULL
;
1670 if (new_resampler
== o
->thread_info
.resampler
)
1673 if (o
->thread_info
.resampler
)
1674 pa_resampler_free(o
->thread_info
.resampler
);
1676 o
->thread_info
.resampler
= new_resampler
;
1678 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
1680 memblockq_name
= pa_sprintf_malloc("source output delay_memblockq [%u]", o
->index
);
1681 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
1684 MEMBLOCKQ_MAXLENGTH
,
1686 &o
->source
->sample_spec
,
1690 &o
->source
->silence
);
1691 pa_xfree(memblockq_name
);
1693 o
->actual_resample_method
= new_resampler
? pa_resampler_get_method(new_resampler
) : PA_RESAMPLER_INVALID
;
1695 pa_log_debug("Updated resampler for source output %d", o
->index
);