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(data
->req_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
], fmt
[PA_FORMAT_INFO_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 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
272 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
274 /* Routing's done, we have a source. Now let's fix the format. */
276 /* If something didn't pick a format for us, pick the top-most format since
277 * we assume this is sorted in priority order */
278 if (!data
->format
&& data
->nego_formats
&& !pa_idxset_isempty(data
->nego_formats
))
279 data
->format
= pa_format_info_copy(pa_idxset_first(data
->nego_formats
, NULL
));
281 if (PA_LIKELY(data
->format
)) {
282 pa_log_debug("Negotiated format: %s", pa_format_info_snprint(fmt
, sizeof(fmt
), data
->format
));
284 pa_format_info
*format
;
287 pa_log_info("Source does not support any requested format:");
288 PA_IDXSET_FOREACH(format
, data
->req_formats
, idx
)
289 pa_log_info(" -- %s", pa_format_info_snprint(fmt
, sizeof(fmt
), format
));
291 return -PA_ERR_NOTSUPPORTED
;
294 /* Now populate the sample spec and format according to the final
295 * format that we've negotiated */
296 pa_return_val_if_fail(pa_format_info_to_sample_spec(data
->format
, &ss
, &map
) == 0, -PA_ERR_INVALID
);
297 pa_source_output_new_data_set_sample_spec(data
, &ss
);
298 if (pa_format_info_is_pcm(data
->format
) && pa_channel_map_valid(&map
))
299 pa_source_output_new_data_set_channel_map(data
, &map
);
301 if (!data
->sample_spec_is_set
)
302 data
->sample_spec
= data
->source
->sample_spec
;
304 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
306 if (!data
->channel_map_is_set
) {
307 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
308 data
->channel_map
= data
->source
->channel_map
;
310 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
313 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
315 /* Don't restore (or save) stream volume for passthrough streams and
316 * prevent attenuation/gain */
317 if (pa_source_output_new_data_is_passthrough(data
)) {
318 data
->volume_is_set
= true;
319 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
320 data
->volume_is_absolute
= true;
321 data
->save_volume
= false;
324 if (!data
->volume_is_set
) {
325 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
326 data
->volume_is_absolute
= false;
327 data
->save_volume
= false;
330 if (!data
->volume_writable
)
331 data
->save_volume
= false;
333 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume
, &data
->sample_spec
), -PA_ERR_INVALID
);
335 if (!data
->volume_factor_is_set
)
336 pa_cvolume_reset(&data
->volume_factor
, data
->sample_spec
.channels
);
338 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor
, &data
->sample_spec
), -PA_ERR_INVALID
);
340 if (!data
->volume_factor_source_is_set
)
341 pa_cvolume_reset(&data
->volume_factor_source
, data
->source
->sample_spec
.channels
);
343 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor_source
, &data
->source
->sample_spec
), -PA_ERR_INVALID
);
345 if (!data
->muted_is_set
)
348 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
) {
349 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
350 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
351 pa_format_info_set_sample_format(data
->format
, data
->sample_spec
.format
);
354 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_RATE
) {
355 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
356 pa_format_info_set_rate(data
->format
, data
->sample_spec
.rate
);
357 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
360 original_cm
= data
->channel_map
;
362 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
363 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
364 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
365 data
->channel_map
= data
->source
->channel_map
;
366 pa_format_info_set_channels(data
->format
, data
->sample_spec
.channels
);
367 pa_format_info_set_channel_map(data
->format
, &data
->channel_map
);
370 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
371 pa_assert(pa_channel_map_valid(&data
->channel_map
));
373 if (!(data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
374 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
375 /* try to change source rate. This is done before the FIXATE hook since
376 module-suspend-on-idle can resume a source */
378 pa_log_info("Trying to change sample rate");
379 if (pa_source_update_rate(data
->source
, data
->sample_spec
.rate
, pa_source_output_new_data_is_passthrough(data
)) >= 0)
380 pa_log_info("Rate changed to %u Hz", data
->source
->sample_spec
.rate
);
383 if (pa_source_output_new_data_is_passthrough(data
) &&
384 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
385 /* rate update failed, or other parts of sample spec didn't match */
387 pa_log_debug("Could not update source sample spec to match passthrough stream");
388 return -PA_ERR_NOTSUPPORTED
;
391 /* Due to the fixing of the sample spec the volume might not match anymore */
392 pa_cvolume_remap(&data
->volume
, &original_cm
, &data
->channel_map
);
394 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
395 data
->resample_method
= core
->resample_method
;
397 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
399 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
402 if ((data
->flags
& PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND
) &&
403 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
404 pa_log("Failed to create source output: source is suspended.");
405 return -PA_ERR_BADSTATE
;
408 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
409 pa_log("Failed to create source output: too many outputs per source.");
410 return -PA_ERR_TOOLARGE
;
413 if ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
414 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
415 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
417 if (!pa_source_output_new_data_is_passthrough(data
)) /* no resampler for passthrough content */
418 if (!(resampler
= pa_resampler_new(
420 &data
->source
->sample_spec
, &data
->source
->channel_map
,
421 &data
->sample_spec
, &data
->channel_map
,
422 data
->resample_method
,
423 ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
424 ((data
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
425 (core
->disable_remixing
|| (data
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
426 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
427 pa_log_warn("Unsupported resampling operation.");
428 return -PA_ERR_NOTSUPPORTED
;
432 o
= pa_msgobject_new(pa_source_output
);
433 o
->parent
.parent
.free
= source_output_free
;
434 o
->parent
.process_msg
= pa_source_output_process_msg
;
437 o
->state
= PA_SOURCE_OUTPUT_INIT
;
438 o
->flags
= data
->flags
;
439 o
->proplist
= pa_proplist_copy(data
->proplist
);
440 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
441 o
->module
= data
->module
;
442 o
->source
= data
->source
;
443 o
->destination_source
= data
->destination_source
;
444 o
->client
= data
->client
;
446 o
->requested_resample_method
= data
->resample_method
;
447 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
448 o
->sample_spec
= data
->sample_spec
;
449 o
->channel_map
= data
->channel_map
;
450 o
->format
= pa_format_info_copy(data
->format
);
452 if (!data
->volume_is_absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
455 /* When the 'absolute' bool is not set then we'll treat the volume
456 * as relative to the source volume even in flat volume mode */
457 remapped
= data
->source
->reference_volume
;
458 pa_cvolume_remap(&remapped
, &data
->source
->channel_map
, &data
->channel_map
);
459 pa_sw_cvolume_multiply(&o
->volume
, &data
->volume
, &remapped
);
461 o
->volume
= data
->volume
;
463 o
->volume_factor
= data
->volume_factor
;
464 o
->volume_factor_source
= data
->volume_factor_source
;
465 o
->real_ratio
= o
->reference_ratio
= data
->volume
;
466 pa_cvolume_reset(&o
->soft_volume
, o
->sample_spec
.channels
);
467 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
468 o
->volume_writable
= data
->volume_writable
;
469 o
->save_volume
= data
->save_volume
;
470 o
->save_source
= data
->save_source
;
471 o
->save_muted
= data
->save_muted
;
473 o
->muted
= data
->muted
;
475 o
->direct_on_input
= data
->direct_on_input
;
480 o
->thread_info
.state
= o
->state
;
481 o
->thread_info
.attached
= false;
482 o
->thread_info
.sample_spec
= o
->sample_spec
;
483 o
->thread_info
.resampler
= resampler
;
484 o
->thread_info
.soft_volume
= o
->soft_volume
;
485 o
->thread_info
.muted
= o
->muted
;
486 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
487 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
489 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
490 "source output delay_memblockq",
494 &o
->source
->sample_spec
,
498 &o
->source
->silence
);
500 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
501 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
504 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
506 if (o
->direct_on_input
)
507 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
509 pt
= pa_proplist_to_string_sep(o
->proplist
, "\n ");
510 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
512 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
514 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
515 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
),
519 /* Don't forget to call pa_source_output_put! */
525 /* Called from main context */
526 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
528 pa_assert_ctl_context();
533 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
534 pa_assert_se(o
->source
->n_corked
-- >= 1);
535 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
536 o
->source
->n_corked
++;
539 /* Called from main context */
540 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
543 pa_assert_ctl_context();
545 if (o
->state
== state
)
548 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_RUNNING
&& pa_source_used_by(o
->source
) == 0 &&
549 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
)) {
550 /* We were uncorked and the source was not playing anything -- let's try
551 * to update the sample rate to avoid resampling */
552 pa_source_update_rate(o
->source
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
));
555 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);
557 update_n_corked(o
, state
);
560 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
) {
561 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
563 if (PA_SOURCE_OUTPUT_IS_LINKED(state
))
564 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
567 pa_source_update_status(o
->source
);
570 /* Called from main context */
571 void pa_source_output_unlink(pa_source_output
*o
) {
574 pa_assert_ctl_context();
576 /* See pa_sink_unlink() for a couple of comments how this function
579 pa_source_output_ref(o
);
581 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
584 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
586 if (o
->direct_on_input
)
587 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
589 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
592 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
593 pa_source_output_unref(o
);
596 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
598 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
599 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
601 if (linked
&& o
->source
) {
602 if (pa_source_output_is_passthrough(o
))
603 pa_source_leave_passthrough(o
->source
);
605 /* We might need to update the source's volume if we are in flat volume mode. */
606 if (pa_source_flat_volume_enabled(o
->source
))
607 pa_source_set_volume(o
->source
, NULL
, false, false);
609 if (o
->source
->asyncmsgq
)
610 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
616 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
617 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
621 if (PA_SOURCE_IS_LINKED(pa_source_get_state(o
->source
)))
622 pa_source_update_status(o
->source
);
627 pa_core_maybe_vacuum(o
->core
);
629 pa_source_output_unref(o
);
632 /* Called from main context */
633 static void source_output_free(pa_object
* mo
) {
634 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
637 pa_assert_ctl_context();
638 pa_assert(pa_source_output_refcnt(o
) == 0);
640 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
641 pa_source_output_unlink(o
);
643 pa_log_info("Freeing output %u \"%s\"", o
->index
,
644 o
->proplist
? pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)) : "");
646 if (o
->thread_info
.delay_memblockq
)
647 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
649 if (o
->thread_info
.resampler
)
650 pa_resampler_free(o
->thread_info
.resampler
);
653 pa_format_info_free(o
->format
);
656 pa_proplist_free(o
->proplist
);
662 /* Called from main context */
663 void pa_source_output_put(pa_source_output
*o
) {
664 pa_source_output_state_t state
;
666 pa_source_output_assert_ref(o
);
667 pa_assert_ctl_context();
669 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
671 /* The following fields must be initialized properly */
675 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
677 update_n_corked(o
, state
);
680 /* We might need to update the source's volume if we are in flat volume mode. */
681 if (pa_source_flat_volume_enabled(o
->source
))
682 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
684 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
685 pa_assert(pa_cvolume_is_norm(&o
->volume
));
686 pa_assert(pa_cvolume_is_norm(&o
->reference_ratio
));
689 set_real_ratio(o
, &o
->volume
);
692 if (pa_source_output_is_passthrough(o
))
693 pa_source_enter_passthrough(o
->source
);
695 o
->thread_info
.soft_volume
= o
->soft_volume
;
696 o
->thread_info
.muted
= o
->muted
;
698 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
700 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
701 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
703 pa_source_update_status(o
->source
);
706 /* Called from main context */
707 void pa_source_output_kill(pa_source_output
*o
) {
708 pa_source_output_assert_ref(o
);
709 pa_assert_ctl_context();
710 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
715 /* Called from main context */
716 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
717 pa_usec_t r
[2] = { 0, 0 };
719 pa_source_output_assert_ref(o
);
720 pa_assert_ctl_context();
721 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
723 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
726 r
[0] += o
->get_latency(o
);
729 *source_latency
= r
[1];
734 /* Called from thread context */
735 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
736 bool need_volume_factor_source
;
739 size_t limit
, mbs
= 0;
741 pa_source_output_assert_ref(o
);
742 pa_source_output_assert_io_context(o
);
743 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
745 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
747 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
750 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
752 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
753 pa_log_debug("Delay queue overflow!");
754 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
, true);
757 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
759 volume_is_norm
= pa_cvolume_is_norm(&o
->thread_info
.soft_volume
) && !o
->thread_info
.muted
;
760 need_volume_factor_source
= !pa_cvolume_is_norm(&o
->volume_factor_source
);
762 if (limit
> 0 && o
->source
->monitor_of
) {
766 /* Hmm, check the latency for knowing how much of the buffered
767 * data is actually still unplayed and might hence still
768 * change. This is suboptimal. Ideally we'd have a call like
769 * pa_sink_get_changeable_size() or so that tells us how much
770 * of the queued data is actually still changeable. Hence
773 latency
= pa_sink_get_latency_within_thread(o
->source
->monitor_of
);
775 n
= pa_usec_to_bytes(latency
, &o
->source
->sample_spec
);
781 /* Implement the delay queue */
782 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
784 bool nvfs
= need_volume_factor_source
;
788 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
790 if (qchunk
.length
> length
)
791 qchunk
.length
= length
;
793 pa_assert(qchunk
.length
> 0);
795 /* It might be necessary to adjust the volume here */
796 if (!volume_is_norm
) {
797 pa_memchunk_make_writable(&qchunk
, 0);
799 if (o
->thread_info
.muted
) {
800 pa_silence_memchunk(&qchunk
, &o
->source
->sample_spec
);
803 } else if (!o
->thread_info
.resampler
&& nvfs
) {
806 /* If we don't need a resampler we can merge the
807 * post and the pre volume adjustment into one */
809 pa_sw_cvolume_multiply(&v
, &o
->thread_info
.soft_volume
, &o
->volume_factor_source
);
810 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &v
);
814 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &o
->thread_info
.soft_volume
);
817 if (!o
->thread_info
.resampler
) {
819 pa_memchunk_make_writable(&qchunk
, 0);
820 pa_volume_memchunk(&qchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
828 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
830 if (qchunk
.length
> mbs
)
833 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
835 if (rchunk
.length
> 0) {
837 pa_memchunk_make_writable(&rchunk
, 0);
838 pa_volume_memchunk(&rchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
845 pa_memblock_unref(rchunk
.memblock
);
848 pa_memblock_unref(qchunk
.memblock
);
849 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
853 /* Called from thread context */
854 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
856 pa_source_output_assert_ref(o
);
857 pa_source_output_assert_io_context(o
);
858 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
859 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
864 if (o
->process_rewind
) {
865 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
867 if (o
->thread_info
.resampler
)
868 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
870 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
873 o
->process_rewind(o
, nbytes
);
875 if (o
->thread_info
.resampler
)
876 pa_resampler_reset(o
->thread_info
.resampler
);
879 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
882 /* Called from thread context */
883 size_t pa_source_output_get_max_rewind(pa_source_output
*o
) {
884 pa_source_output_assert_ref(o
);
885 pa_source_output_assert_io_context(o
);
887 return o
->thread_info
.resampler
? pa_resampler_request(o
->thread_info
.resampler
, o
->source
->thread_info
.max_rewind
) : o
->source
->thread_info
.max_rewind
;
890 /* Called from thread context */
891 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
892 pa_source_output_assert_ref(o
);
893 pa_source_output_assert_io_context(o
);
894 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
895 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
897 if (o
->update_max_rewind
)
898 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
901 /* Called from thread context */
902 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
903 pa_source_output_assert_ref(o
);
904 pa_source_output_assert_io_context(o
);
906 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
907 usec
= o
->source
->thread_info
.fixed_latency
;
909 if (usec
!= (pa_usec_t
) -1)
910 usec
= PA_CLAMP(usec
, o
->source
->thread_info
.min_latency
, o
->source
->thread_info
.max_latency
);
912 o
->thread_info
.requested_source_latency
= usec
;
913 pa_source_invalidate_requested_latency(o
->source
, true);
918 /* Called from main context */
919 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
920 pa_source_output_assert_ref(o
);
921 pa_assert_ctl_context();
923 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
924 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
928 /* If this source output is not realized yet or is being moved, we
929 * have to touch the thread info data directly */
932 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
933 usec
= pa_source_get_fixed_latency(o
->source
);
935 if (usec
!= (pa_usec_t
) -1) {
936 pa_usec_t min_latency
, max_latency
;
937 pa_source_get_latency_range(o
->source
, &min_latency
, &max_latency
);
938 usec
= PA_CLAMP(usec
, min_latency
, max_latency
);
942 o
->thread_info
.requested_source_latency
= usec
;
947 /* Called from main context */
948 pa_usec_t
pa_source_output_get_requested_latency(pa_source_output
*o
) {
949 pa_source_output_assert_ref(o
);
950 pa_assert_ctl_context();
952 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
954 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
958 /* If this source output is not realized yet or is being moved, we
959 * have to touch the thread info data directly */
961 return o
->thread_info
.requested_source_latency
;
964 /* Called from main context */
965 void pa_source_output_set_volume(pa_source_output
*o
, const pa_cvolume
*volume
, bool save
, bool absolute
) {
968 pa_source_output_assert_ref(o
);
969 pa_assert_ctl_context();
970 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
972 pa_assert(pa_cvolume_valid(volume
));
973 pa_assert(volume
->channels
== 1 || pa_cvolume_compatible(volume
, &o
->sample_spec
));
974 pa_assert(o
->volume_writable
);
976 if (!absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
977 v
= o
->source
->reference_volume
;
978 pa_cvolume_remap(&v
, &o
->source
->channel_map
, &o
->channel_map
);
980 if (pa_cvolume_compatible(volume
, &o
->sample_spec
))
981 volume
= pa_sw_cvolume_multiply(&v
, &v
, volume
);
983 volume
= pa_sw_cvolume_multiply_scalar(&v
, &v
, pa_cvolume_max(volume
));
985 if (!pa_cvolume_compatible(volume
, &o
->sample_spec
)) {
987 volume
= pa_cvolume_scale(&v
, pa_cvolume_max(volume
));
991 if (pa_cvolume_equal(volume
, &o
->volume
)) {
992 o
->save_volume
= o
->save_volume
|| save
;
997 o
->save_volume
= save
;
999 if (pa_source_flat_volume_enabled(o
->source
)) {
1000 /* We are in flat volume mode, so let's update all source input
1001 * volumes and update the flat volume of the source */
1003 pa_source_set_volume(o
->source
, NULL
, true, save
);
1006 /* OK, we are in normal volume mode. The volume only affects
1008 set_real_ratio(o
, volume
);
1010 /* Copy the new soft_volume to the thread_info struct */
1011 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
, NULL
, 0, NULL
) == 0);
1014 /* The volume changed, let's tell people so */
1015 if (o
->volume_changed
)
1016 o
->volume_changed(o
);
1018 /* The virtual volume changed, let's tell people so */
1019 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1022 /* Called from main context */
1023 static void set_real_ratio(pa_source_output
*o
, const pa_cvolume
*v
) {
1024 pa_source_output_assert_ref(o
);
1025 pa_assert_ctl_context();
1026 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1027 pa_assert(!v
|| pa_cvolume_compatible(v
, &o
->sample_spec
));
1029 /* This basically calculates:
1031 * o->real_ratio := v
1032 * o->soft_volume := o->real_ratio * o->volume_factor */
1037 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
1039 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1040 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1043 /* Called from main or I/O context */
1044 bool pa_source_output_is_passthrough(pa_source_output
*o
) {
1045 pa_source_output_assert_ref(o
);
1047 if (PA_UNLIKELY(!pa_format_info_is_pcm(o
->format
)))
1050 if (PA_UNLIKELY(o
->flags
& PA_SOURCE_OUTPUT_PASSTHROUGH
))
1056 /* Called from main context */
1057 bool pa_source_output_is_volume_readable(pa_source_output
*o
) {
1058 pa_source_output_assert_ref(o
);
1059 pa_assert_ctl_context();
1061 return !pa_source_output_is_passthrough(o
);
1064 /* Called from main context */
1065 pa_cvolume
*pa_source_output_get_volume(pa_source_output
*o
, pa_cvolume
*volume
, bool absolute
) {
1066 pa_source_output_assert_ref(o
);
1067 pa_assert_ctl_context();
1068 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1069 pa_assert(pa_source_output_is_volume_readable(o
));
1071 if (absolute
|| !pa_source_flat_volume_enabled(o
->source
))
1072 *volume
= o
->volume
;
1074 *volume
= o
->reference_ratio
;
1079 /* Called from main context */
1080 void pa_source_output_set_mute(pa_source_output
*o
, bool mute
, bool save
) {
1081 pa_source_output_assert_ref(o
);
1082 pa_assert_ctl_context();
1083 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1085 if (!o
->muted
== !mute
) {
1086 o
->save_muted
= o
->save_muted
|| mute
;
1091 o
->save_muted
= save
;
1093 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
, NULL
, 0, NULL
) == 0);
1095 /* The mute status changed, let's tell people so */
1096 if (o
->mute_changed
)
1099 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1102 /* Called from main context */
1103 bool pa_source_output_get_mute(pa_source_output
*o
) {
1104 pa_source_output_assert_ref(o
);
1105 pa_assert_ctl_context();
1106 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1111 /* Called from main thread */
1112 void pa_source_output_update_proplist(pa_source_output
*o
, pa_update_mode_t mode
, pa_proplist
*p
) {
1113 pa_source_output_assert_ref(o
);
1114 pa_assert_ctl_context();
1117 pa_proplist_update(o
->proplist
, mode
, p
);
1119 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1120 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1121 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1125 /* Called from main context */
1126 void pa_source_output_cork(pa_source_output
*o
, bool b
) {
1127 pa_source_output_assert_ref(o
);
1128 pa_assert_ctl_context();
1129 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1131 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
1134 /* Called from main context */
1135 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
1136 pa_source_output_assert_ref(o
);
1137 pa_assert_ctl_context();
1138 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1139 pa_return_val_if_fail(o
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
1141 if (o
->sample_spec
.rate
== rate
)
1144 o
->sample_spec
.rate
= rate
;
1146 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
1148 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1152 /* Called from main context */
1153 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
1155 pa_assert_ctl_context();
1156 pa_source_output_assert_ref(o
);
1158 if (!name
&& !pa_proplist_contains(o
->proplist
, PA_PROP_MEDIA_NAME
))
1161 old
= pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
);
1163 if (old
&& name
&& pa_streq(old
, name
))
1167 pa_proplist_sets(o
->proplist
, PA_PROP_MEDIA_NAME
, name
);
1169 pa_proplist_unset(o
->proplist
, PA_PROP_MEDIA_NAME
);
1171 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1172 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1173 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1177 /* Called from main context */
1178 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
1179 pa_source_output_assert_ref(o
);
1180 pa_assert_ctl_context();
1182 return o
->actual_resample_method
;
1185 /* Called from main context */
1186 bool pa_source_output_may_move(pa_source_output
*o
) {
1187 pa_source_output_assert_ref(o
);
1188 pa_assert_ctl_context();
1189 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1191 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
1194 if (o
->direct_on_input
)
1200 static bool find_filter_source_output(pa_source_output
*target
, pa_source
*s
) {
1202 while (s
&& s
->output_from_master
) {
1203 if (s
->output_from_master
== target
)
1205 s
= s
->output_from_master
->source
;
1206 pa_assert(i
++ < 100);
1211 /* Called from main context */
1212 bool pa_source_output_may_move_to(pa_source_output
*o
, pa_source
*dest
) {
1213 pa_source_output_assert_ref(o
);
1214 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1215 pa_source_assert_ref(dest
);
1217 if (dest
== o
->source
)
1220 if (!pa_source_output_may_move(o
))
1223 /* Make sure we're not creating a filter source cycle */
1224 if (find_filter_source_output(o
, dest
)) {
1225 pa_log_debug("Can't connect output to %s, as that would create a cycle.", dest
->name
);
1229 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
1230 pa_log_warn("Failed to move source output: too many outputs per source.");
1235 if (!o
->may_move_to(o
, dest
))
1241 /* Called from main context */
1242 int pa_source_output_start_move(pa_source_output
*o
) {
1246 pa_source_output_assert_ref(o
);
1247 pa_assert_ctl_context();
1248 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1249 pa_assert(o
->source
);
1251 if (!pa_source_output_may_move(o
))
1252 return -PA_ERR_NOTSUPPORTED
;
1254 if ((r
= pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
], o
)) < 0)
1259 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
1261 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1262 pa_assert_se(origin
->n_corked
-- >= 1);
1264 if (pa_source_output_is_passthrough(o
))
1265 pa_source_leave_passthrough(o
->source
);
1267 if (pa_source_flat_volume_enabled(o
->source
))
1268 /* We might need to update the source's volume if we are in flat
1270 pa_source_set_volume(o
->source
, NULL
, false, false);
1272 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
1274 pa_source_update_status(o
->source
);
1277 pa_source_output_unref(o
);
1282 /* Called from main context. If it has an origin source that uses volume sharing,
1283 * then also the origin source and all streams connected to it need to update
1284 * their volume - this function does all that by using recursion. */
1285 static void update_volume_due_to_moving(pa_source_output
*o
, pa_source
*dest
) {
1286 pa_cvolume old_volume
;
1290 pa_assert(o
->source
); /* The destination source should already be set. */
1292 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1293 pa_source
*root_source
;
1294 pa_source_output
*destination_source_output
;
1297 root_source
= pa_source_get_master(o
->source
);
1299 if (PA_UNLIKELY(!root_source
))
1302 if (pa_source_flat_volume_enabled(o
->source
)) {
1303 /* Ok, so the origin source uses volume sharing, and flat volume is
1304 * enabled. The volume will have to be updated as follows:
1306 * o->volume := o->source->real_volume
1307 * (handled later by pa_source_set_volume)
1308 * o->reference_ratio := o->volume / o->source->reference_volume
1309 * (handled later by pa_source_set_volume)
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 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1319 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1321 /* Notifications will be sent by pa_source_set_volume(). */
1324 /* Ok, so the origin source uses volume sharing, and flat volume is
1325 * disabled. The volume will have to be updated as follows:
1328 * o->reference_ratio := 0 dB
1329 * o->real_ratio stays unchanged
1330 * (streams whose origin source uses volume sharing should
1331 * always have real_ratio of 0 dB)
1332 * o->soft_volume stays unchanged
1333 * (streams whose origin source uses volume sharing should
1334 * always have volume_factor as soft_volume, so no change
1335 * should be needed) */
1337 old_volume
= o
->volume
;
1338 pa_cvolume_reset(&o
->volume
, o
->volume
.channels
);
1339 pa_cvolume_reset(&o
->reference_ratio
, o
->reference_ratio
.channels
);
1340 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1341 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1343 /* Notify others about the changed source output volume. */
1344 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1345 if (o
->volume_changed
)
1346 o
->volume_changed(o
);
1348 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1352 /* Additionally, the origin source volume needs updating:
1354 * o->destination_source->reference_volume := root_source->reference_volume
1355 * o->destination_source->real_volume := root_source->real_volume
1356 * o->destination_source->soft_volume stays unchanged
1357 * (sources that use volume sharing should always have
1358 * soft_volume of 0 dB) */
1360 old_volume
= o
->destination_source
->reference_volume
;
1362 o
->destination_source
->reference_volume
= root_source
->reference_volume
;
1363 pa_cvolume_remap(&o
->destination_source
->reference_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1365 o
->destination_source
->real_volume
= root_source
->real_volume
;
1366 pa_cvolume_remap(&o
->destination_source
->real_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1368 pa_assert(pa_cvolume_is_norm(&o
->destination_source
->soft_volume
));
1370 /* Notify others about the changed source volume. If you wonder whether
1371 * o->destination_source->set_volume() should be called somewhere, that's not
1372 * the case, because sources that use volume sharing shouldn't have any
1373 * internal volume that set_volume() would update. If you wonder
1374 * whether the thread_info variables should be synced, yes, they
1375 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1377 if (!pa_cvolume_equal(&o
->destination_source
->reference_volume
, &old_volume
))
1378 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->destination_source
->index
);
1380 /* Recursively update origin source outputs. */
1381 PA_IDXSET_FOREACH(destination_source_output
, o
->destination_source
->outputs
, idx
)
1382 update_volume_due_to_moving(destination_source_output
, dest
);
1385 old_volume
= o
->volume
;
1387 if (pa_source_flat_volume_enabled(o
->source
)) {
1388 /* Ok, so this is a regular stream, and flat volume is enabled. The
1389 * volume will have to be updated as follows:
1391 * o->volume := o->reference_ratio * o->source->reference_volume
1392 * o->reference_ratio stays unchanged
1393 * o->real_ratio := o->volume / o->source->real_volume
1394 * (handled later by pa_source_set_volume)
1395 * o->soft_volume := o->real_ratio * o->volume_factor
1396 * (handled later by pa_source_set_volume) */
1398 o
->volume
= o
->source
->reference_volume
;
1399 pa_cvolume_remap(&o
->volume
, &o
->source
->channel_map
, &o
->channel_map
);
1400 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1403 /* Ok, so this is a regular stream, and flat volume is disabled.
1404 * The volume will have to be updated as follows:
1406 * o->volume := o->reference_ratio
1407 * o->reference_ratio stays unchanged
1408 * o->real_ratio := o->reference_ratio
1409 * o->soft_volume := o->real_ratio * o->volume_factor */
1411 o
->volume
= o
->reference_ratio
;
1412 o
->real_ratio
= o
->reference_ratio
;
1413 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1416 /* Notify others about the changed source output volume. */
1417 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1418 /* XXX: In case o->source has flat volume enabled, then real_ratio
1419 * and soft_volume are not updated yet. Let's hope that the
1420 * callback implementation doesn't care about those variables... */
1421 if (o
->volume_changed
)
1422 o
->volume_changed(o
);
1424 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1428 /* If o->source == dest, then recursion has finished, and we can finally call
1429 * pa_source_set_volume(), which will do the rest of the updates. */
1430 if ((o
->source
== dest
) && pa_source_flat_volume_enabled(o
->source
))
1431 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
1434 /* Called from main context */
1435 int pa_source_output_finish_move(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1436 pa_source_output_assert_ref(o
);
1437 pa_assert_ctl_context();
1438 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1439 pa_assert(!o
->source
);
1440 pa_source_assert_ref(dest
);
1442 if (!pa_source_output_may_move_to(o
, dest
))
1443 return -PA_ERR_NOTSUPPORTED
;
1445 if (pa_source_output_is_passthrough(o
) && !pa_source_check_format(dest
, o
->format
)) {
1446 pa_proplist
*p
= pa_proplist_new();
1447 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1448 /* Tell the client what device we want to be on if it is going to
1450 pa_proplist_sets(p
, "device", dest
->name
);
1451 pa_source_output_send_event(o
, PA_STREAM_EVENT_FORMAT_LOST
, p
);
1452 pa_proplist_free(p
);
1453 return -PA_ERR_NOTSUPPORTED
;
1456 if (!(o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
1457 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
)) {
1458 /* try to change dest sink rate if possible without glitches.
1459 module-suspend-on-idle resumes destination source with
1460 SOURCE_OUTPUT_MOVE_FINISH hook */
1462 pa_log_info("Trying to change sample rate");
1463 if (pa_source_update_rate(dest
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
)) >= 0)
1464 pa_log_info("Rate changed to %u Hz", dest
->sample_spec
.rate
);
1471 o
->save_source
= save
;
1472 pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
);
1474 pa_cvolume_remap(&o
->volume_factor_source
, &o
->channel_map
, &o
->source
->channel_map
);
1476 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1477 o
->source
->n_corked
++;
1479 pa_source_output_update_rate(o
);
1481 pa_source_update_status(dest
);
1483 update_volume_due_to_moving(o
, dest
);
1485 if (pa_source_output_is_passthrough(o
))
1486 pa_source_enter_passthrough(o
->source
);
1488 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
1490 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
1492 /* Notify everyone */
1493 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
1494 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1499 /* Called from main context */
1500 void pa_source_output_fail_move(pa_source_output
*o
) {
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
);
1507 /* Check if someone wants this source output? */
1508 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL
], o
) == PA_HOOK_STOP
)
1514 pa_source_output_kill(o
);
1517 /* Called from main context */
1518 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1521 pa_source_output_assert_ref(o
);
1522 pa_assert_ctl_context();
1523 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1524 pa_assert(o
->source
);
1525 pa_source_assert_ref(dest
);
1527 if (dest
== o
->source
)
1530 if (!pa_source_output_may_move_to(o
, dest
))
1531 return -PA_ERR_NOTSUPPORTED
;
1533 pa_source_output_ref(o
);
1535 if ((r
= pa_source_output_start_move(o
)) < 0) {
1536 pa_source_output_unref(o
);
1540 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0) {
1541 pa_source_output_fail_move(o
);
1542 pa_source_output_unref(o
);
1546 pa_source_output_unref(o
);
1551 /* Called from IO thread context */
1552 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
1553 pa_source_output_assert_ref(o
);
1554 pa_source_output_assert_io_context(o
);
1556 if (state
== o
->thread_info
.state
)
1559 if (o
->state_change
)
1560 o
->state_change(o
, state
);
1562 o
->thread_info
.state
= state
;
1565 /* Called from IO thread context, except when it is not */
1566 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
1567 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
1568 pa_source_output_assert_ref(o
);
1572 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
1573 pa_usec_t
*r
= userdata
;
1575 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
1576 r
[1] += pa_source_get_latency_within_thread(o
->source
);
1581 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
1583 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1584 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1587 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
1589 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
1593 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
1594 pa_usec_t
*usec
= userdata
;
1596 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
1601 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
1602 pa_usec_t
*r
= userdata
;
1604 *r
= o
->thread_info
.requested_source_latency
;
1608 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
:
1609 if (!pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
)) {
1610 o
->thread_info
.soft_volume
= o
->soft_volume
;
1614 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
:
1615 if (o
->thread_info
.muted
!= o
->muted
) {
1616 o
->thread_info
.muted
= o
->muted
;
1621 return -PA_ERR_NOTIMPLEMENTED
;
1624 /* Called from main context */
1625 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
1626 pa_proplist
*pl
= NULL
;
1627 pa_source_output_send_event_hook_data hook_data
;
1629 pa_source_output_assert_ref(o
);
1630 pa_assert_ctl_context();
1637 data
= pl
= pa_proplist_new();
1639 hook_data
.source_output
= o
;
1640 hook_data
.data
= data
;
1641 hook_data
.event
= event
;
1643 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
1646 o
->send_event(o
, event
, data
);
1650 pa_proplist_free(pl
);
1653 /* Called from main context */
1654 /* Updates the source output's resampler with whatever the current source
1655 * requires -- useful when the underlying source's rate might have changed */
1656 int pa_source_output_update_rate(pa_source_output
*o
) {
1657 pa_resampler
*new_resampler
;
1658 char *memblockq_name
;
1660 pa_source_output_assert_ref(o
);
1661 pa_assert_ctl_context();
1663 if (o
->thread_info
.resampler
&&
1664 pa_sample_spec_equal(pa_resampler_input_sample_spec(o
->thread_info
.resampler
), &o
->source
->sample_spec
) &&
1665 pa_channel_map_equal(pa_resampler_input_channel_map(o
->thread_info
.resampler
), &o
->source
->channel_map
))
1667 new_resampler
= o
->thread_info
.resampler
;
1669 else if (!pa_source_output_is_passthrough(o
) &&
1670 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
1671 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
) ||
1672 !pa_channel_map_equal(&o
->channel_map
, &o
->source
->channel_map
))) {
1674 new_resampler
= pa_resampler_new(o
->core
->mempool
,
1675 &o
->source
->sample_spec
, &o
->source
->channel_map
,
1676 &o
->sample_spec
, &o
->channel_map
,
1677 o
->requested_resample_method
,
1678 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
1679 ((o
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
1680 (o
->core
->disable_remixing
|| (o
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0));
1682 if (!new_resampler
) {
1683 pa_log_warn("Unsupported resampling operation.");
1684 return -PA_ERR_NOTSUPPORTED
;
1687 new_resampler
= NULL
;
1689 if (new_resampler
== o
->thread_info
.resampler
)
1692 if (o
->thread_info
.resampler
)
1693 pa_resampler_free(o
->thread_info
.resampler
);
1695 o
->thread_info
.resampler
= new_resampler
;
1697 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
1699 memblockq_name
= pa_sprintf_malloc("source output delay_memblockq [%u]", o
->index
);
1700 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
1703 MEMBLOCKQ_MAXLENGTH
,
1705 &o
->source
->sample_spec
,
1709 &o
->source
->silence
);
1710 pa_xfree(memblockq_name
);
1712 o
->actual_resample_method
= new_resampler
? pa_resampler_get_method(new_resampler
) : PA_RESAMPLER_INVALID
;
1714 pa_log_debug("Updated resampler for source output %d", o
->index
);