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
], 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 /* Routing's done, we have a source. Now let's fix the format and set up the
274 /* If something didn't pick a format for us, pick the top-most format since
275 * we assume this is sorted in priority order */
276 if (!data
->format
&& data
->nego_formats
&& !pa_idxset_isempty(data
->nego_formats
))
277 data
->format
= pa_format_info_copy(pa_idxset_first(data
->nego_formats
, NULL
));
279 if (PA_LIKELY(data
->format
)) {
280 pa_log_debug("Negotiated format: %s", pa_format_info_snprint(fmt
, sizeof(fmt
), data
->format
));
282 pa_format_info
*format
;
285 pa_log_info("Source does not support any requested format:");
286 PA_IDXSET_FOREACH(format
, data
->req_formats
, idx
)
287 pa_log_info(" -- %s", pa_format_info_snprint(fmt
, sizeof(fmt
), format
));
289 return -PA_ERR_NOTSUPPORTED
;
292 /* Now populate the sample spec and format according to the final
293 * format that we've negotiated */
294 pa_return_val_if_fail(pa_format_info_to_sample_spec(data
->format
, &ss
, &map
) == 0, -PA_ERR_INVALID
);
295 pa_source_output_new_data_set_sample_spec(data
, &ss
);
296 if (pa_format_info_is_pcm(data
->format
) && pa_channel_map_valid(&map
))
297 pa_source_output_new_data_set_channel_map(data
, &map
);
299 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
300 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
302 if (!data
->sample_spec_is_set
)
303 data
->sample_spec
= data
->source
->sample_spec
;
305 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
307 if (!data
->channel_map_is_set
) {
308 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
309 data
->channel_map
= data
->source
->channel_map
;
311 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
314 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
316 /* Don't restore (or save) stream volume for passthrough streams and
317 * prevent attenuation/gain */
318 if (pa_source_output_new_data_is_passthrough(data
)) {
319 data
->volume_is_set
= true;
320 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
321 data
->volume_is_absolute
= true;
322 data
->save_volume
= false;
325 if (!data
->volume_is_set
) {
326 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
327 data
->volume_is_absolute
= false;
328 data
->save_volume
= false;
331 if (!data
->volume_writable
)
332 data
->save_volume
= false;
334 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume
, &data
->sample_spec
), -PA_ERR_INVALID
);
336 if (!data
->volume_factor_is_set
)
337 pa_cvolume_reset(&data
->volume_factor
, data
->sample_spec
.channels
);
339 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor
, &data
->sample_spec
), -PA_ERR_INVALID
);
341 if (!data
->volume_factor_source_is_set
)
342 pa_cvolume_reset(&data
->volume_factor_source
, data
->source
->sample_spec
.channels
);
344 pa_return_val_if_fail(pa_cvolume_compatible(&data
->volume_factor_source
, &data
->source
->sample_spec
), -PA_ERR_INVALID
);
346 if (!data
->muted_is_set
)
349 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
) {
350 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
351 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
352 pa_format_info_set_sample_format(data
->format
, data
->sample_spec
.format
);
355 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_RATE
) {
356 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
357 pa_format_info_set_rate(data
->format
, data
->sample_spec
.rate
);
358 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
361 original_cm
= data
->channel_map
;
363 if (data
->flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
364 pa_return_val_if_fail(pa_format_info_is_pcm(data
->format
), -PA_ERR_INVALID
);
365 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
366 data
->channel_map
= data
->source
->channel_map
;
367 pa_format_info_set_channels(data
->format
, data
->sample_spec
.channels
);
368 pa_format_info_set_channel_map(data
->format
, &data
->channel_map
);
371 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
372 pa_assert(pa_channel_map_valid(&data
->channel_map
));
374 if (!(data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
375 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
376 /* try to change source rate. This is done before the FIXATE hook since
377 module-suspend-on-idle can resume a source */
379 pa_log_info("Trying to change sample rate");
380 if (pa_source_update_rate(data
->source
, data
->sample_spec
.rate
, pa_source_output_new_data_is_passthrough(data
)) >= 0)
381 pa_log_info("Rate changed to %u Hz", data
->source
->sample_spec
.rate
);
384 if (pa_source_output_new_data_is_passthrough(data
) &&
385 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
)) {
386 /* rate update failed, or other parts of sample spec didn't match */
388 pa_log_debug("Could not update source sample spec to match passthrough stream");
389 return -PA_ERR_NOTSUPPORTED
;
392 /* Due to the fixing of the sample spec the volume might not match anymore */
393 pa_cvolume_remap(&data
->volume
, &original_cm
, &data
->channel_map
);
395 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
396 data
->resample_method
= core
->resample_method
;
398 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
400 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
403 if ((data
->flags
& PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND
) &&
404 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
405 pa_log("Failed to create source output: source is suspended.");
406 return -PA_ERR_BADSTATE
;
409 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
410 pa_log("Failed to create source output: too many outputs per source.");
411 return -PA_ERR_TOOLARGE
;
414 if ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
415 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
416 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
418 if (!pa_source_output_new_data_is_passthrough(data
)) /* no resampler for passthrough content */
419 if (!(resampler
= pa_resampler_new(
421 &data
->source
->sample_spec
, &data
->source
->channel_map
,
422 &data
->sample_spec
, &data
->channel_map
,
423 data
->resample_method
,
424 ((data
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
425 ((data
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
426 (core
->disable_remixing
|| (data
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
427 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
428 pa_log_warn("Unsupported resampling operation.");
429 return -PA_ERR_NOTSUPPORTED
;
433 o
= pa_msgobject_new(pa_source_output
);
434 o
->parent
.parent
.free
= source_output_free
;
435 o
->parent
.process_msg
= pa_source_output_process_msg
;
438 o
->state
= PA_SOURCE_OUTPUT_INIT
;
439 o
->flags
= data
->flags
;
440 o
->proplist
= pa_proplist_copy(data
->proplist
);
441 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
442 o
->module
= data
->module
;
443 o
->source
= data
->source
;
444 o
->destination_source
= data
->destination_source
;
445 o
->client
= data
->client
;
447 o
->requested_resample_method
= data
->resample_method
;
448 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
449 o
->sample_spec
= data
->sample_spec
;
450 o
->channel_map
= data
->channel_map
;
451 o
->format
= pa_format_info_copy(data
->format
);
453 if (!data
->volume_is_absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
456 /* When the 'absolute' bool is not set then we'll treat the volume
457 * as relative to the source volume even in flat volume mode */
458 remapped
= data
->source
->reference_volume
;
459 pa_cvolume_remap(&remapped
, &data
->source
->channel_map
, &data
->channel_map
);
460 pa_sw_cvolume_multiply(&o
->volume
, &data
->volume
, &remapped
);
462 o
->volume
= data
->volume
;
464 o
->volume_factor
= data
->volume_factor
;
465 o
->volume_factor_source
= data
->volume_factor_source
;
466 o
->real_ratio
= o
->reference_ratio
= data
->volume
;
467 pa_cvolume_reset(&o
->soft_volume
, o
->sample_spec
.channels
);
468 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
469 o
->volume_writable
= data
->volume_writable
;
470 o
->save_volume
= data
->save_volume
;
471 o
->save_source
= data
->save_source
;
472 o
->save_muted
= data
->save_muted
;
474 o
->muted
= data
->muted
;
476 o
->direct_on_input
= data
->direct_on_input
;
481 o
->thread_info
.state
= o
->state
;
482 o
->thread_info
.attached
= false;
483 o
->thread_info
.sample_spec
= o
->sample_spec
;
484 o
->thread_info
.resampler
= resampler
;
485 o
->thread_info
.soft_volume
= o
->soft_volume
;
486 o
->thread_info
.muted
= o
->muted
;
487 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
488 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
490 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
491 "source output delay_memblockq",
495 &o
->source
->sample_spec
,
499 &o
->source
->silence
);
501 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
502 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
505 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
507 if (o
->direct_on_input
)
508 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
510 pt
= pa_proplist_to_string_sep(o
->proplist
, "\n ");
511 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
513 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
515 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
516 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
),
520 /* Don't forget to call pa_source_output_put! */
526 /* Called from main context */
527 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
529 pa_assert_ctl_context();
534 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
535 pa_assert_se(o
->source
->n_corked
-- >= 1);
536 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
537 o
->source
->n_corked
++;
540 /* Called from main context */
541 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
544 pa_assert_ctl_context();
546 if (o
->state
== state
)
549 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_RUNNING
&& pa_source_used_by(o
->source
) == 0 &&
550 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
)) {
551 /* We were uncorked and the source was not playing anything -- let's try
552 * to update the sample rate to avoid resampling */
553 pa_source_update_rate(o
->source
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
));
556 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);
558 update_n_corked(o
, state
);
561 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
) {
562 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
564 if (PA_SOURCE_OUTPUT_IS_LINKED(state
))
565 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
568 pa_source_update_status(o
->source
);
571 /* Called from main context */
572 void pa_source_output_unlink(pa_source_output
*o
) {
575 pa_assert_ctl_context();
577 /* See pa_sink_unlink() for a couple of comments how this function
580 pa_source_output_ref(o
);
582 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
585 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
587 if (o
->direct_on_input
)
588 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
590 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
593 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
594 pa_source_output_unref(o
);
597 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
599 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
600 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
602 if (linked
&& o
->source
) {
603 if (pa_source_output_is_passthrough(o
))
604 pa_source_leave_passthrough(o
->source
);
606 /* We might need to update the source's volume if we are in flat volume mode. */
607 if (pa_source_flat_volume_enabled(o
->source
))
608 pa_source_set_volume(o
->source
, NULL
, false, false);
610 if (o
->source
->asyncmsgq
)
611 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
617 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
618 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
622 if (PA_SOURCE_IS_LINKED(pa_source_get_state(o
->source
)))
623 pa_source_update_status(o
->source
);
628 pa_core_maybe_vacuum(o
->core
);
630 pa_source_output_unref(o
);
633 /* Called from main context */
634 static void source_output_free(pa_object
* mo
) {
635 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
638 pa_assert_ctl_context();
639 pa_assert(pa_source_output_refcnt(o
) == 0);
641 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
642 pa_source_output_unlink(o
);
644 pa_log_info("Freeing output %u \"%s\"", o
->index
,
645 o
->proplist
? pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)) : "");
647 if (o
->thread_info
.delay_memblockq
)
648 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
650 if (o
->thread_info
.resampler
)
651 pa_resampler_free(o
->thread_info
.resampler
);
654 pa_format_info_free(o
->format
);
657 pa_proplist_free(o
->proplist
);
663 /* Called from main context */
664 void pa_source_output_put(pa_source_output
*o
) {
665 pa_source_output_state_t state
;
667 pa_source_output_assert_ref(o
);
668 pa_assert_ctl_context();
670 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
672 /* The following fields must be initialized properly */
676 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
678 update_n_corked(o
, state
);
681 /* We might need to update the source's volume if we are in flat volume mode. */
682 if (pa_source_flat_volume_enabled(o
->source
))
683 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
685 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
686 pa_assert(pa_cvolume_is_norm(&o
->volume
));
687 pa_assert(pa_cvolume_is_norm(&o
->reference_ratio
));
690 set_real_ratio(o
, &o
->volume
);
693 if (pa_source_output_is_passthrough(o
))
694 pa_source_enter_passthrough(o
->source
);
696 o
->thread_info
.soft_volume
= o
->soft_volume
;
697 o
->thread_info
.muted
= o
->muted
;
699 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
701 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
702 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
704 pa_source_update_status(o
->source
);
707 /* Called from main context */
708 void pa_source_output_kill(pa_source_output
*o
) {
709 pa_source_output_assert_ref(o
);
710 pa_assert_ctl_context();
711 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
716 /* Called from main context */
717 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
718 pa_usec_t r
[2] = { 0, 0 };
720 pa_source_output_assert_ref(o
);
721 pa_assert_ctl_context();
722 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
724 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
727 r
[0] += o
->get_latency(o
);
730 *source_latency
= r
[1];
735 /* Called from thread context */
736 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
737 bool need_volume_factor_source
;
740 size_t limit
, mbs
= 0;
742 pa_source_output_assert_ref(o
);
743 pa_source_output_assert_io_context(o
);
744 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
746 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
748 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
751 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
753 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
754 pa_log_debug("Delay queue overflow!");
755 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
, true);
758 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
760 volume_is_norm
= pa_cvolume_is_norm(&o
->thread_info
.soft_volume
) && !o
->thread_info
.muted
;
761 need_volume_factor_source
= !pa_cvolume_is_norm(&o
->volume_factor_source
);
763 if (limit
> 0 && o
->source
->monitor_of
) {
767 /* Hmm, check the latency for knowing how much of the buffered
768 * data is actually still unplayed and might hence still
769 * change. This is suboptimal. Ideally we'd have a call like
770 * pa_sink_get_changeable_size() or so that tells us how much
771 * of the queued data is actually still changeable. Hence
774 latency
= pa_sink_get_latency_within_thread(o
->source
->monitor_of
);
776 n
= pa_usec_to_bytes(latency
, &o
->source
->sample_spec
);
782 /* Implement the delay queue */
783 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
785 bool nvfs
= need_volume_factor_source
;
789 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
791 if (qchunk
.length
> length
)
792 qchunk
.length
= length
;
794 pa_assert(qchunk
.length
> 0);
796 /* It might be necessary to adjust the volume here */
797 if (!volume_is_norm
) {
798 pa_memchunk_make_writable(&qchunk
, 0);
800 if (o
->thread_info
.muted
) {
801 pa_silence_memchunk(&qchunk
, &o
->source
->sample_spec
);
804 } else if (!o
->thread_info
.resampler
&& nvfs
) {
807 /* If we don't need a resampler we can merge the
808 * post and the pre volume adjustment into one */
810 pa_sw_cvolume_multiply(&v
, &o
->thread_info
.soft_volume
, &o
->volume_factor_source
);
811 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &v
);
815 pa_volume_memchunk(&qchunk
, &o
->source
->sample_spec
, &o
->thread_info
.soft_volume
);
818 if (!o
->thread_info
.resampler
) {
820 pa_memchunk_make_writable(&qchunk
, 0);
821 pa_volume_memchunk(&qchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
829 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
831 if (qchunk
.length
> mbs
)
834 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
836 if (rchunk
.length
> 0) {
838 pa_memchunk_make_writable(&rchunk
, 0);
839 pa_volume_memchunk(&rchunk
, &o
->thread_info
.sample_spec
, &o
->volume_factor_source
);
846 pa_memblock_unref(rchunk
.memblock
);
849 pa_memblock_unref(qchunk
.memblock
);
850 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
854 /* Called from thread context */
855 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
857 pa_source_output_assert_ref(o
);
858 pa_source_output_assert_io_context(o
);
859 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
860 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
865 if (o
->process_rewind
) {
866 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
868 if (o
->thread_info
.resampler
)
869 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
871 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
874 o
->process_rewind(o
, nbytes
);
876 if (o
->thread_info
.resampler
)
877 pa_resampler_reset(o
->thread_info
.resampler
);
880 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
883 /* Called from thread context */
884 size_t pa_source_output_get_max_rewind(pa_source_output
*o
) {
885 pa_source_output_assert_ref(o
);
886 pa_source_output_assert_io_context(o
);
888 return o
->thread_info
.resampler
? pa_resampler_request(o
->thread_info
.resampler
, o
->source
->thread_info
.max_rewind
) : o
->source
->thread_info
.max_rewind
;
891 /* Called from thread context */
892 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
893 pa_source_output_assert_ref(o
);
894 pa_source_output_assert_io_context(o
);
895 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
896 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
898 if (o
->update_max_rewind
)
899 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
902 /* Called from thread context */
903 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
904 pa_source_output_assert_ref(o
);
905 pa_source_output_assert_io_context(o
);
907 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
908 usec
= o
->source
->thread_info
.fixed_latency
;
910 if (usec
!= (pa_usec_t
) -1)
911 usec
= PA_CLAMP(usec
, o
->source
->thread_info
.min_latency
, o
->source
->thread_info
.max_latency
);
913 o
->thread_info
.requested_source_latency
= usec
;
914 pa_source_invalidate_requested_latency(o
->source
, true);
919 /* Called from main context */
920 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
921 pa_source_output_assert_ref(o
);
922 pa_assert_ctl_context();
924 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
925 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
929 /* If this source output is not realized yet or is being moved, we
930 * have to touch the thread info data directly */
933 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
934 usec
= pa_source_get_fixed_latency(o
->source
);
936 if (usec
!= (pa_usec_t
) -1) {
937 pa_usec_t min_latency
, max_latency
;
938 pa_source_get_latency_range(o
->source
, &min_latency
, &max_latency
);
939 usec
= PA_CLAMP(usec
, min_latency
, max_latency
);
943 o
->thread_info
.requested_source_latency
= usec
;
948 /* Called from main context */
949 pa_usec_t
pa_source_output_get_requested_latency(pa_source_output
*o
) {
950 pa_source_output_assert_ref(o
);
951 pa_assert_ctl_context();
953 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
955 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
959 /* If this source output is not realized yet or is being moved, we
960 * have to touch the thread info data directly */
962 return o
->thread_info
.requested_source_latency
;
965 /* Called from main context */
966 void pa_source_output_set_volume(pa_source_output
*o
, const pa_cvolume
*volume
, bool save
, bool absolute
) {
969 pa_source_output_assert_ref(o
);
970 pa_assert_ctl_context();
971 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
973 pa_assert(pa_cvolume_valid(volume
));
974 pa_assert(volume
->channels
== 1 || pa_cvolume_compatible(volume
, &o
->sample_spec
));
975 pa_assert(o
->volume_writable
);
977 if (!absolute
&& pa_source_flat_volume_enabled(o
->source
)) {
978 v
= o
->source
->reference_volume
;
979 pa_cvolume_remap(&v
, &o
->source
->channel_map
, &o
->channel_map
);
981 if (pa_cvolume_compatible(volume
, &o
->sample_spec
))
982 volume
= pa_sw_cvolume_multiply(&v
, &v
, volume
);
984 volume
= pa_sw_cvolume_multiply_scalar(&v
, &v
, pa_cvolume_max(volume
));
986 if (!pa_cvolume_compatible(volume
, &o
->sample_spec
)) {
988 volume
= pa_cvolume_scale(&v
, pa_cvolume_max(volume
));
992 if (pa_cvolume_equal(volume
, &o
->volume
)) {
993 o
->save_volume
= o
->save_volume
|| save
;
998 o
->save_volume
= save
;
1000 if (pa_source_flat_volume_enabled(o
->source
)) {
1001 /* We are in flat volume mode, so let's update all source input
1002 * volumes and update the flat volume of the source */
1004 pa_source_set_volume(o
->source
, NULL
, true, save
);
1007 /* OK, we are in normal volume mode. The volume only affects
1009 set_real_ratio(o
, volume
);
1011 /* Copy the new soft_volume to the thread_info struct */
1012 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
, NULL
, 0, NULL
) == 0);
1015 /* The volume changed, let's tell people so */
1016 if (o
->volume_changed
)
1017 o
->volume_changed(o
);
1019 /* The virtual volume changed, let's tell people so */
1020 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1023 /* Called from main context */
1024 static void set_real_ratio(pa_source_output
*o
, const pa_cvolume
*v
) {
1025 pa_source_output_assert_ref(o
);
1026 pa_assert_ctl_context();
1027 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1028 pa_assert(!v
|| pa_cvolume_compatible(v
, &o
->sample_spec
));
1030 /* This basically calculates:
1032 * o->real_ratio := v
1033 * o->soft_volume := o->real_ratio * o->volume_factor */
1038 pa_cvolume_reset(&o
->real_ratio
, o
->sample_spec
.channels
);
1040 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1041 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1044 /* Called from main or I/O context */
1045 bool pa_source_output_is_passthrough(pa_source_output
*o
) {
1046 pa_source_output_assert_ref(o
);
1048 if (PA_UNLIKELY(!pa_format_info_is_pcm(o
->format
)))
1051 if (PA_UNLIKELY(o
->flags
& PA_SOURCE_OUTPUT_PASSTHROUGH
))
1057 /* Called from main context */
1058 bool pa_source_output_is_volume_readable(pa_source_output
*o
) {
1059 pa_source_output_assert_ref(o
);
1060 pa_assert_ctl_context();
1062 return !pa_source_output_is_passthrough(o
);
1065 /* Called from main context */
1066 pa_cvolume
*pa_source_output_get_volume(pa_source_output
*o
, pa_cvolume
*volume
, bool absolute
) {
1067 pa_source_output_assert_ref(o
);
1068 pa_assert_ctl_context();
1069 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1070 pa_assert(pa_source_output_is_volume_readable(o
));
1072 if (absolute
|| !pa_source_flat_volume_enabled(o
->source
))
1073 *volume
= o
->volume
;
1075 *volume
= o
->reference_ratio
;
1080 /* Called from main context */
1081 void pa_source_output_set_mute(pa_source_output
*o
, bool mute
, bool save
) {
1082 pa_source_output_assert_ref(o
);
1083 pa_assert_ctl_context();
1084 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1086 if (!o
->muted
== !mute
) {
1087 o
->save_muted
= o
->save_muted
|| mute
;
1092 o
->save_muted
= save
;
1094 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
, NULL
, 0, NULL
) == 0);
1096 /* The mute status changed, let's tell people so */
1097 if (o
->mute_changed
)
1100 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1103 /* Called from main context */
1104 bool pa_source_output_get_mute(pa_source_output
*o
) {
1105 pa_source_output_assert_ref(o
);
1106 pa_assert_ctl_context();
1107 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1112 /* Called from main thread */
1113 void pa_source_output_update_proplist(pa_source_output
*o
, pa_update_mode_t mode
, pa_proplist
*p
) {
1114 pa_source_output_assert_ref(o
);
1115 pa_assert_ctl_context();
1118 pa_proplist_update(o
->proplist
, mode
, p
);
1120 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1121 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1122 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1126 /* Called from main context */
1127 void pa_source_output_cork(pa_source_output
*o
, bool b
) {
1128 pa_source_output_assert_ref(o
);
1129 pa_assert_ctl_context();
1130 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1132 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
1135 /* Called from main context */
1136 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
1137 pa_source_output_assert_ref(o
);
1138 pa_assert_ctl_context();
1139 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1140 pa_return_val_if_fail(o
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
1142 if (o
->sample_spec
.rate
== rate
)
1145 o
->sample_spec
.rate
= rate
;
1147 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
1149 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1153 /* Called from main context */
1154 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
1156 pa_assert_ctl_context();
1157 pa_source_output_assert_ref(o
);
1159 if (!name
&& !pa_proplist_contains(o
->proplist
, PA_PROP_MEDIA_NAME
))
1162 old
= pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
);
1164 if (old
&& name
&& pa_streq(old
, name
))
1168 pa_proplist_sets(o
->proplist
, PA_PROP_MEDIA_NAME
, name
);
1170 pa_proplist_unset(o
->proplist
, PA_PROP_MEDIA_NAME
);
1172 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
1173 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
1174 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1178 /* Called from main context */
1179 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
1180 pa_source_output_assert_ref(o
);
1181 pa_assert_ctl_context();
1183 return o
->actual_resample_method
;
1186 /* Called from main context */
1187 bool pa_source_output_may_move(pa_source_output
*o
) {
1188 pa_source_output_assert_ref(o
);
1189 pa_assert_ctl_context();
1190 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1192 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
1195 if (o
->direct_on_input
)
1201 static bool find_filter_source_output(pa_source_output
*target
, pa_source
*s
) {
1203 while (s
&& s
->output_from_master
) {
1204 if (s
->output_from_master
== target
)
1206 s
= s
->output_from_master
->source
;
1207 pa_assert(i
++ < 100);
1212 /* Called from main context */
1213 bool pa_source_output_may_move_to(pa_source_output
*o
, pa_source
*dest
) {
1214 pa_source_output_assert_ref(o
);
1215 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1216 pa_source_assert_ref(dest
);
1218 if (dest
== o
->source
)
1221 if (!pa_source_output_may_move(o
))
1224 /* Make sure we're not creating a filter source cycle */
1225 if (find_filter_source_output(o
, dest
)) {
1226 pa_log_debug("Can't connect output to %s, as that would create a cycle.", dest
->name
);
1230 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
1231 pa_log_warn("Failed to move source output: too many outputs per source.");
1236 if (!o
->may_move_to(o
, dest
))
1242 /* Called from main context */
1243 int pa_source_output_start_move(pa_source_output
*o
) {
1247 pa_source_output_assert_ref(o
);
1248 pa_assert_ctl_context();
1249 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1250 pa_assert(o
->source
);
1252 if (!pa_source_output_may_move(o
))
1253 return -PA_ERR_NOTSUPPORTED
;
1255 if ((r
= pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
], o
)) < 0)
1260 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
1262 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1263 pa_assert_se(origin
->n_corked
-- >= 1);
1265 if (pa_source_output_is_passthrough(o
))
1266 pa_source_leave_passthrough(o
->source
);
1268 if (pa_source_flat_volume_enabled(o
->source
))
1269 /* We might need to update the source's volume if we are in flat
1271 pa_source_set_volume(o
->source
, NULL
, false, false);
1273 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
1275 pa_source_update_status(o
->source
);
1278 pa_source_output_unref(o
);
1283 /* Called from main context. If it has an origin source that uses volume sharing,
1284 * then also the origin source and all streams connected to it need to update
1285 * their volume - this function does all that by using recursion. */
1286 static void update_volume_due_to_moving(pa_source_output
*o
, pa_source
*dest
) {
1287 pa_cvolume old_volume
;
1291 pa_assert(o
->source
); /* The destination source should already be set. */
1293 if (o
->destination_source
&& (o
->destination_source
->flags
& PA_SOURCE_SHARE_VOLUME_WITH_MASTER
)) {
1294 pa_source
*root_source
;
1295 pa_source_output
*destination_source_output
;
1298 root_source
= pa_source_get_master(o
->source
);
1300 if (PA_UNLIKELY(!root_source
))
1303 if (pa_source_flat_volume_enabled(o
->source
)) {
1304 /* Ok, so the origin source uses volume sharing, and flat volume is
1305 * enabled. The volume will have to be updated as follows:
1307 * o->volume := o->source->real_volume
1308 * (handled later by pa_source_set_volume)
1309 * o->reference_ratio := o->volume / o->source->reference_volume
1310 * (handled later by pa_source_set_volume)
1311 * o->real_ratio stays unchanged
1312 * (streams whose origin source uses volume sharing should
1313 * always have real_ratio of 0 dB)
1314 * o->soft_volume stays unchanged
1315 * (streams whose origin source uses volume sharing should
1316 * always have volume_factor as soft_volume, so no change
1317 * should be needed) */
1319 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1320 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1322 /* Notifications will be sent by pa_source_set_volume(). */
1325 /* Ok, so the origin source uses volume sharing, and flat volume is
1326 * disabled. The volume will have to be updated as follows:
1329 * o->reference_ratio := 0 dB
1330 * o->real_ratio stays unchanged
1331 * (streams whose origin source uses volume sharing should
1332 * always have real_ratio of 0 dB)
1333 * o->soft_volume stays unchanged
1334 * (streams whose origin source uses volume sharing should
1335 * always have volume_factor as soft_volume, so no change
1336 * should be needed) */
1338 old_volume
= o
->volume
;
1339 pa_cvolume_reset(&o
->volume
, o
->volume
.channels
);
1340 pa_cvolume_reset(&o
->reference_ratio
, o
->reference_ratio
.channels
);
1341 pa_assert(pa_cvolume_is_norm(&o
->real_ratio
));
1342 pa_assert(pa_cvolume_equal(&o
->soft_volume
, &o
->volume_factor
));
1344 /* Notify others about the changed source output volume. */
1345 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1346 if (o
->volume_changed
)
1347 o
->volume_changed(o
);
1349 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1353 /* Additionally, the origin source volume needs updating:
1355 * o->destination_source->reference_volume := root_source->reference_volume
1356 * o->destination_source->real_volume := root_source->real_volume
1357 * o->destination_source->soft_volume stays unchanged
1358 * (sources that use volume sharing should always have
1359 * soft_volume of 0 dB) */
1361 old_volume
= o
->destination_source
->reference_volume
;
1363 o
->destination_source
->reference_volume
= root_source
->reference_volume
;
1364 pa_cvolume_remap(&o
->destination_source
->reference_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1366 o
->destination_source
->real_volume
= root_source
->real_volume
;
1367 pa_cvolume_remap(&o
->destination_source
->real_volume
, &root_source
->channel_map
, &o
->destination_source
->channel_map
);
1369 pa_assert(pa_cvolume_is_norm(&o
->destination_source
->soft_volume
));
1371 /* Notify others about the changed source volume. If you wonder whether
1372 * o->destination_source->set_volume() should be called somewhere, that's not
1373 * the case, because sources that use volume sharing shouldn't have any
1374 * internal volume that set_volume() would update. If you wonder
1375 * whether the thread_info variables should be synced, yes, they
1376 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1378 if (!pa_cvolume_equal(&o
->destination_source
->reference_volume
, &old_volume
))
1379 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->destination_source
->index
);
1381 /* Recursively update origin source outputs. */
1382 PA_IDXSET_FOREACH(destination_source_output
, o
->destination_source
->outputs
, idx
)
1383 update_volume_due_to_moving(destination_source_output
, dest
);
1386 old_volume
= o
->volume
;
1388 if (pa_source_flat_volume_enabled(o
->source
)) {
1389 /* Ok, so this is a regular stream, and flat volume is enabled. The
1390 * volume will have to be updated as follows:
1392 * o->volume := o->reference_ratio * o->source->reference_volume
1393 * o->reference_ratio stays unchanged
1394 * o->real_ratio := o->volume / o->source->real_volume
1395 * (handled later by pa_source_set_volume)
1396 * o->soft_volume := o->real_ratio * o->volume_factor
1397 * (handled later by pa_source_set_volume) */
1399 o
->volume
= o
->source
->reference_volume
;
1400 pa_cvolume_remap(&o
->volume
, &o
->source
->channel_map
, &o
->channel_map
);
1401 pa_sw_cvolume_multiply(&o
->volume
, &o
->volume
, &o
->reference_ratio
);
1404 /* Ok, so this is a regular stream, and flat volume is disabled.
1405 * The volume will have to be updated as follows:
1407 * o->volume := o->reference_ratio
1408 * o->reference_ratio stays unchanged
1409 * o->real_ratio := o->reference_ratio
1410 * o->soft_volume := o->real_ratio * o->volume_factor */
1412 o
->volume
= o
->reference_ratio
;
1413 o
->real_ratio
= o
->reference_ratio
;
1414 pa_sw_cvolume_multiply(&o
->soft_volume
, &o
->real_ratio
, &o
->volume_factor
);
1417 /* Notify others about the changed source output volume. */
1418 if (!pa_cvolume_equal(&o
->volume
, &old_volume
)) {
1419 /* XXX: In case o->source has flat volume enabled, then real_ratio
1420 * and soft_volume are not updated yet. Let's hope that the
1421 * callback implementation doesn't care about those variables... */
1422 if (o
->volume_changed
)
1423 o
->volume_changed(o
);
1425 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1429 /* If o->source == dest, then recursion has finished, and we can finally call
1430 * pa_source_set_volume(), which will do the rest of the updates. */
1431 if ((o
->source
== dest
) && pa_source_flat_volume_enabled(o
->source
))
1432 pa_source_set_volume(o
->source
, NULL
, false, o
->save_volume
);
1435 /* Called from main context */
1436 int pa_source_output_finish_move(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1437 pa_source_output_assert_ref(o
);
1438 pa_assert_ctl_context();
1439 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1440 pa_assert(!o
->source
);
1441 pa_source_assert_ref(dest
);
1443 if (!pa_source_output_may_move_to(o
, dest
))
1444 return -PA_ERR_NOTSUPPORTED
;
1446 if (pa_source_output_is_passthrough(o
) && !pa_source_check_format(dest
, o
->format
)) {
1447 pa_proplist
*p
= pa_proplist_new();
1448 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1449 /* Tell the client what device we want to be on if it is going to
1451 pa_proplist_sets(p
, "device", dest
->name
);
1452 pa_source_output_send_event(o
, PA_STREAM_EVENT_FORMAT_LOST
, p
);
1453 pa_proplist_free(p
);
1454 return -PA_ERR_NOTSUPPORTED
;
1457 if (!(o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) &&
1458 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
)) {
1459 /* try to change dest sink rate if possible without glitches.
1460 module-suspend-on-idle resumes destination source with
1461 SOURCE_OUTPUT_MOVE_FINISH hook */
1463 pa_log_info("Trying to change sample rate");
1464 if (pa_source_update_rate(dest
, o
->sample_spec
.rate
, pa_source_output_is_passthrough(o
)) >= 0)
1465 pa_log_info("Rate changed to %u Hz", dest
->sample_spec
.rate
);
1472 o
->save_source
= save
;
1473 pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
);
1475 pa_cvolume_remap(&o
->volume_factor_source
, &o
->channel_map
, &o
->source
->channel_map
);
1477 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
1478 o
->source
->n_corked
++;
1480 pa_source_output_update_rate(o
);
1482 pa_source_update_status(dest
);
1484 update_volume_due_to_moving(o
, dest
);
1486 if (pa_source_output_is_passthrough(o
))
1487 pa_source_enter_passthrough(o
->source
);
1489 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
1491 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
1493 /* Notify everyone */
1494 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
1495 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
1500 /* Called from main context */
1501 void pa_source_output_fail_move(pa_source_output
*o
) {
1503 pa_source_output_assert_ref(o
);
1504 pa_assert_ctl_context();
1505 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1506 pa_assert(!o
->source
);
1508 /* Check if someone wants this source output? */
1509 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL
], o
) == PA_HOOK_STOP
)
1515 pa_source_output_kill(o
);
1518 /* Called from main context */
1519 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, bool save
) {
1522 pa_source_output_assert_ref(o
);
1523 pa_assert_ctl_context();
1524 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
1525 pa_assert(o
->source
);
1526 pa_source_assert_ref(dest
);
1528 if (dest
== o
->source
)
1531 if (!pa_source_output_may_move_to(o
, dest
))
1532 return -PA_ERR_NOTSUPPORTED
;
1534 pa_source_output_ref(o
);
1536 if ((r
= pa_source_output_start_move(o
)) < 0) {
1537 pa_source_output_unref(o
);
1541 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0) {
1542 pa_source_output_fail_move(o
);
1543 pa_source_output_unref(o
);
1547 pa_source_output_unref(o
);
1552 /* Called from IO thread context */
1553 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
1554 pa_source_output_assert_ref(o
);
1555 pa_source_output_assert_io_context(o
);
1557 if (state
== o
->thread_info
.state
)
1560 if (o
->state_change
)
1561 o
->state_change(o
, state
);
1563 o
->thread_info
.state
= state
;
1566 /* Called from IO thread context, except when it is not */
1567 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
1568 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
1569 pa_source_output_assert_ref(o
);
1573 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
1574 pa_usec_t
*r
= userdata
;
1576 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
1577 r
[1] += pa_source_get_latency_within_thread(o
->source
);
1582 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
1584 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1585 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1588 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
1590 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
1594 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
1595 pa_usec_t
*usec
= userdata
;
1597 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
1602 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
1603 pa_usec_t
*r
= userdata
;
1605 *r
= o
->thread_info
.requested_source_latency
;
1609 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME
:
1610 if (!pa_cvolume_equal(&o
->thread_info
.soft_volume
, &o
->soft_volume
)) {
1611 o
->thread_info
.soft_volume
= o
->soft_volume
;
1615 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE
:
1616 if (o
->thread_info
.muted
!= o
->muted
) {
1617 o
->thread_info
.muted
= o
->muted
;
1622 return -PA_ERR_NOTIMPLEMENTED
;
1625 /* Called from main context */
1626 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
1627 pa_proplist
*pl
= NULL
;
1628 pa_source_output_send_event_hook_data hook_data
;
1630 pa_source_output_assert_ref(o
);
1631 pa_assert_ctl_context();
1638 data
= pl
= pa_proplist_new();
1640 hook_data
.source_output
= o
;
1641 hook_data
.data
= data
;
1642 hook_data
.event
= event
;
1644 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
1647 o
->send_event(o
, event
, data
);
1651 pa_proplist_free(pl
);
1654 /* Called from main context */
1655 /* Updates the source output's resampler with whatever the current source
1656 * requires -- useful when the underlying source's rate might have changed */
1657 int pa_source_output_update_rate(pa_source_output
*o
) {
1658 pa_resampler
*new_resampler
;
1659 char *memblockq_name
;
1661 pa_source_output_assert_ref(o
);
1662 pa_assert_ctl_context();
1664 if (o
->thread_info
.resampler
&&
1665 pa_sample_spec_equal(pa_resampler_input_sample_spec(o
->thread_info
.resampler
), &o
->source
->sample_spec
) &&
1666 pa_channel_map_equal(pa_resampler_input_channel_map(o
->thread_info
.resampler
), &o
->source
->channel_map
))
1668 new_resampler
= o
->thread_info
.resampler
;
1670 else if (!pa_source_output_is_passthrough(o
) &&
1671 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
1672 !pa_sample_spec_equal(&o
->sample_spec
, &o
->source
->sample_spec
) ||
1673 !pa_channel_map_equal(&o
->channel_map
, &o
->source
->channel_map
))) {
1675 new_resampler
= pa_resampler_new(o
->core
->mempool
,
1676 &o
->source
->sample_spec
, &o
->source
->channel_map
,
1677 &o
->sample_spec
, &o
->channel_map
,
1678 o
->requested_resample_method
,
1679 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
1680 ((o
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
1681 (o
->core
->disable_remixing
|| (o
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0));
1683 if (!new_resampler
) {
1684 pa_log_warn("Unsupported resampling operation.");
1685 return -PA_ERR_NOTSUPPORTED
;
1688 new_resampler
= NULL
;
1690 if (new_resampler
== o
->thread_info
.resampler
)
1693 if (o
->thread_info
.resampler
)
1694 pa_resampler_free(o
->thread_info
.resampler
);
1696 o
->thread_info
.resampler
= new_resampler
;
1698 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
1700 memblockq_name
= pa_sprintf_malloc("source output delay_memblockq [%u]", o
->index
);
1701 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
1704 MEMBLOCKQ_MAXLENGTH
,
1706 &o
->source
->sample_spec
,
1710 &o
->source
->silence
);
1711 pa_xfree(memblockq_name
);
1713 o
->actual_resample_method
= new_resampler
? pa_resampler_get_method(new_resampler
) : PA_RESAMPLER_INVALID
;
1715 pa_log_debug("Updated resampler for source output %d", o
->index
);