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>
34 #include <pulsecore/sample-util.h>
35 #include <pulsecore/core-subscribe.h>
36 #include <pulsecore/log.h>
37 #include <pulsecore/namereg.h>
38 #include <pulsecore/core-util.h>
40 #include "source-output.h"
42 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
44 static PA_DEFINE_CHECK_TYPE(pa_source_output
, pa_msgobject
);
46 static void source_output_free(pa_object
* mo
);
48 pa_source_output_new_data
* pa_source_output_new_data_init(pa_source_output_new_data
*data
) {
51 memset(data
, 0, sizeof(*data
));
52 data
->resample_method
= PA_RESAMPLER_INVALID
;
53 data
->proplist
= pa_proplist_new();
58 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data
*data
, const pa_sample_spec
*spec
) {
61 if ((data
->sample_spec_is_set
= !!spec
))
62 data
->sample_spec
= *spec
;
65 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data
*data
, const pa_channel_map
*map
) {
68 if ((data
->channel_map_is_set
= !!map
))
69 data
->channel_map
= *map
;
72 void pa_source_output_new_data_done(pa_source_output_new_data
*data
) {
75 pa_proplist_free(data
->proplist
);
78 /* Called from main context */
79 static void reset_callbacks(pa_source_output
*o
) {
83 o
->process_rewind
= NULL
;
84 o
->update_max_rewind
= NULL
;
85 o
->update_source_requested_latency
= NULL
;
86 o
->update_source_latency_range
= NULL
;
90 o
->suspend_within_thread
= NULL
;
93 o
->get_latency
= NULL
;
94 o
->state_change
= NULL
;
95 o
->may_move_to
= NULL
;
99 /* Called from main context */
100 int pa_source_output_new(
101 pa_source_output
**_o
,
103 pa_source_output_new_data
*data
,
104 pa_source_output_flags_t flags
) {
107 pa_resampler
*resampler
= NULL
;
108 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
116 pa_proplist_update(data
->proplist
, PA_UPDATE_MERGE
, data
->client
->proplist
);
118 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_NEW
], data
)) < 0)
121 pa_return_val_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
), -PA_ERR_INVALID
);
124 data
->source
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SOURCE
);
125 data
->save_source
= FALSE
;
128 pa_return_val_if_fail(data
->source
, -PA_ERR_NOENTITY
);
129 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
130 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
132 if (!data
->sample_spec_is_set
)
133 data
->sample_spec
= data
->source
->sample_spec
;
135 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
137 if (!data
->channel_map_is_set
) {
138 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
139 data
->channel_map
= data
->source
->channel_map
;
141 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
144 pa_return_val_if_fail(pa_channel_map_valid(&data
->channel_map
), -PA_ERR_INVALID
);
145 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
147 if (flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
)
148 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
150 if (flags
& PA_SOURCE_OUTPUT_FIX_RATE
)
151 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
153 if (flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
154 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
155 data
->channel_map
= data
->source
->channel_map
;
158 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
159 pa_assert(pa_channel_map_valid(&data
->channel_map
));
161 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
162 data
->resample_method
= core
->resample_method
;
164 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
166 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
169 if ((flags
& PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND
) &&
170 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
171 pa_log("Failed to create source output: source is suspended.");
172 return -PA_ERR_BADSTATE
;
175 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
176 pa_log("Failed to create source output: too many outputs per source.");
177 return -PA_ERR_TOOLARGE
;
180 if ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
181 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
182 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
184 if (!(resampler
= pa_resampler_new(
186 &data
->source
->sample_spec
, &data
->source
->channel_map
,
187 &data
->sample_spec
, &data
->channel_map
,
188 data
->resample_method
,
189 ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
190 ((flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
191 (core
->disable_remixing
|| (flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
192 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
193 pa_log_warn("Unsupported resampling operation.");
194 return -PA_ERR_NOTSUPPORTED
;
198 o
= pa_msgobject_new(pa_source_output
);
199 o
->parent
.parent
.free
= source_output_free
;
200 o
->parent
.process_msg
= pa_source_output_process_msg
;
203 o
->state
= PA_SOURCE_OUTPUT_INIT
;
205 o
->proplist
= pa_proplist_copy(data
->proplist
);
206 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
207 o
->module
= data
->module
;
208 o
->source
= data
->source
;
209 o
->client
= data
->client
;
211 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
212 o
->requested_resample_method
= data
->resample_method
;
213 o
->sample_spec
= data
->sample_spec
;
214 o
->channel_map
= data
->channel_map
;
216 o
->direct_on_input
= data
->direct_on_input
;
218 o
->save_source
= data
->save_source
;
223 o
->thread_info
.state
= o
->state
;
224 o
->thread_info
.attached
= FALSE
;
225 o
->thread_info
.sample_spec
= o
->sample_spec
;
226 o
->thread_info
.resampler
= resampler
;
227 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
228 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
230 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
234 pa_frame_size(&o
->source
->sample_spec
),
238 &o
->source
->silence
);
240 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
241 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
244 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
246 if (o
->direct_on_input
)
247 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
249 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
251 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
253 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
254 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
));
256 /* Don't forget to call pa_source_output_put! */
262 /* Called from main context */
263 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
269 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
270 pa_assert_se(o
->source
->n_corked
-- >= 1);
271 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
272 o
->source
->n_corked
++;
275 /* Called from main context */
276 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
279 if (o
->state
== state
)
282 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);
284 update_n_corked(o
, state
);
287 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
)
288 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
290 pa_source_update_status(o
->source
);
293 /* Called from main context */
294 void pa_source_output_unlink(pa_source_output
*o
) {
298 /* See pa_sink_unlink() for a couple of comments how this function
301 pa_source_output_ref(o
);
303 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
306 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
308 if (o
->direct_on_input
)
309 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
311 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
314 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
315 pa_source_output_unref(o
);
318 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
320 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
321 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
323 if (linked
&& o
->source
)
324 if (o
->source
->asyncmsgq
)
325 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
330 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
331 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
335 pa_source_update_status(o
->source
);
339 pa_core_maybe_vacuum(o
->core
);
341 pa_source_output_unref(o
);
344 /* Called from main context */
345 static void source_output_free(pa_object
* mo
) {
346 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
349 pa_assert(pa_source_output_refcnt(o
) == 0);
351 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
352 pa_source_output_unlink(o
);
354 pa_log_info("Freeing output %u \"%s\"", o
->index
, pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)));
356 pa_assert(!o
->thread_info
.attached
);
358 if (o
->thread_info
.delay_memblockq
)
359 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
361 if (o
->thread_info
.resampler
)
362 pa_resampler_free(o
->thread_info
.resampler
);
365 pa_proplist_free(o
->proplist
);
371 /* Called from main context */
372 void pa_source_output_put(pa_source_output
*o
) {
373 pa_source_output_state_t state
;
374 pa_source_output_assert_ref(o
);
376 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
378 /* The following fields must be initialized properly */
382 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
384 update_n_corked(o
, state
);
387 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
389 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
390 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
392 pa_source_update_status(o
->source
);
395 /* Called from main context */
396 void pa_source_output_kill(pa_source_output
*o
) {
397 pa_source_output_assert_ref(o
);
398 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
403 /* Called from main context */
404 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
405 pa_usec_t r
[2] = { 0, 0 };
407 pa_source_output_assert_ref(o
);
408 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
410 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
413 r
[0] += o
->get_latency(o
);
416 *source_latency
= r
[1];
421 /* Called from thread context */
422 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
424 size_t limit
, mbs
= 0;
426 pa_source_output_assert_ref(o
);
427 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
429 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
431 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
434 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
436 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
437 pa_log_debug("Delay queue overflow!");
438 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
, TRUE
);
441 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
443 /* Implement the delay queue */
444 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
449 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
451 if (qchunk
.length
> length
)
452 qchunk
.length
= length
;
454 pa_assert(qchunk
.length
> 0);
456 if (!o
->thread_info
.resampler
)
462 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
464 if (qchunk
.length
> mbs
)
467 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
469 if (rchunk
.length
> 0)
473 pa_memblock_unref(rchunk
.memblock
);
476 pa_memblock_unref(qchunk
.memblock
);
477 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
481 /* Called from thread context */
482 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
483 pa_source_output_assert_ref(o
);
485 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
486 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
491 if (o
->process_rewind
) {
492 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
494 if (o
->thread_info
.resampler
)
495 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
497 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
500 o
->process_rewind(o
, nbytes
);
502 if (o
->thread_info
.resampler
)
503 pa_resampler_reset(o
->thread_info
.resampler
);
506 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
509 /* Called from thread context */
510 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
511 pa_source_output_assert_ref(o
);
512 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
513 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
515 if (o
->update_max_rewind
)
516 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
519 /* Called from thread context */
520 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
521 pa_source_output_assert_ref(o
);
523 if (usec
!= (pa_usec_t
) -1)
524 usec
= PA_CLAMP(usec
, o
->source
->thread_info
.min_latency
, o
->source
->thread_info
.max_latency
);
526 o
->thread_info
.requested_source_latency
= usec
;
527 pa_source_invalidate_requested_latency(o
->source
);
532 /* Called from main context */
533 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
534 pa_usec_t min_latency
, max_latency
;
536 pa_source_output_assert_ref(o
);
538 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
539 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
543 /* If this source output is not realized yet or is being moved, we
544 * have to touch the thread info data directly */
547 pa_source_get_latency_range(o
->source
, &min_latency
, &max_latency
);
549 if (usec
!= (pa_usec_t
) -1)
550 usec
= PA_CLAMP(usec
, min_latency
, max_latency
);
553 o
->thread_info
.requested_source_latency
= usec
;
558 /* Called from main context */
559 pa_usec_t
pa_source_output_get_requested_latency(pa_source_output
*o
) {
560 pa_source_output_assert_ref(o
);
562 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
564 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
568 /* If this source output is not realized yet or is being moved, we
569 * have to touch the thread info data directly */
571 return o
->thread_info
.requested_source_latency
;
574 /* Called from main context */
575 void pa_source_output_cork(pa_source_output
*o
, pa_bool_t b
) {
576 pa_source_output_assert_ref(o
);
577 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
579 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
582 /* Called from main context */
583 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
584 pa_source_output_assert_ref(o
);
585 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
586 pa_return_val_if_fail(o
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
588 if (o
->sample_spec
.rate
== rate
)
591 o
->sample_spec
.rate
= rate
;
593 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
595 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
599 /* Called from main context */
600 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
602 pa_source_output_assert_ref(o
);
604 if (!name
&& !pa_proplist_contains(o
->proplist
, PA_PROP_MEDIA_NAME
))
607 old
= pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
);
609 if (old
&& name
&& !strcmp(old
, name
))
613 pa_proplist_sets(o
->proplist
, PA_PROP_MEDIA_NAME
, name
);
615 pa_proplist_unset(o
->proplist
, PA_PROP_MEDIA_NAME
);
617 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
618 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
619 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
623 /* Called from main thread */
624 void pa_source_output_update_proplist(pa_source_output
*o
, pa_update_mode_t mode
, pa_proplist
*p
) {
625 pa_source_output_assert_ref(o
);
628 pa_proplist_update(o
->proplist
, mode
, p
);
630 if (PA_SINK_IS_LINKED(o
->state
)) {
631 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
632 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
636 /* Called from main context */
637 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
638 pa_source_output_assert_ref(o
);
640 return o
->actual_resample_method
;
643 /* Called from main context */
644 pa_bool_t
pa_source_output_may_move(pa_source_output
*o
) {
645 pa_source_output_assert_ref(o
);
646 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
648 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
651 if (o
->direct_on_input
)
657 /* Called from main context */
658 pa_bool_t
pa_source_output_may_move_to(pa_source_output
*o
, pa_source
*dest
) {
659 pa_source_output_assert_ref(o
);
660 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
661 pa_source_assert_ref(dest
);
663 if (dest
== o
->source
)
666 if (!pa_source_output_may_move(o
))
669 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
670 pa_log_warn("Failed to move source output: too many outputs per source.");
675 if (!o
->may_move_to(o
, dest
))
681 /* Called from main context */
682 int pa_source_output_start_move(pa_source_output
*o
) {
686 pa_source_output_assert_ref(o
);
687 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
688 pa_assert(o
->source
);
690 if (!pa_source_output_may_move(o
))
691 return -PA_ERR_NOTSUPPORTED
;
693 if ((r
= pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
], o
)) < 0)
698 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
700 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
701 pa_assert_se(origin
->n_corked
-- >= 1);
703 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
705 pa_source_update_status(o
->source
);
711 /* Called from main context */
712 int pa_source_output_finish_move(pa_source_output
*o
, pa_source
*dest
, pa_bool_t save
) {
713 pa_resampler
*new_resampler
;
715 pa_source_output_assert_ref(o
);
716 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
717 pa_assert(!o
->source
);
718 pa_source_assert_ref(dest
);
720 if (!pa_source_output_may_move_to(o
, dest
))
723 if (o
->thread_info
.resampler
&&
724 pa_sample_spec_equal(pa_resampler_input_sample_spec(o
->thread_info
.resampler
), &dest
->sample_spec
) &&
725 pa_channel_map_equal(pa_resampler_input_channel_map(o
->thread_info
.resampler
), &dest
->channel_map
))
727 /* Try to reuse the old resampler if possible */
728 new_resampler
= o
->thread_info
.resampler
;
730 else if ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
731 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
) ||
732 !pa_channel_map_equal(&o
->channel_map
, &dest
->channel_map
)) {
734 /* Okey, we need a new resampler for the new source */
736 if (!(new_resampler
= pa_resampler_new(
738 &dest
->sample_spec
, &dest
->channel_map
,
739 &o
->sample_spec
, &o
->channel_map
,
740 o
->requested_resample_method
,
741 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
742 ((o
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
743 (o
->core
->disable_remixing
|| (o
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
744 pa_log_warn("Unsupported resampling operation.");
745 return -PA_ERR_NOTSUPPORTED
;
748 new_resampler
= NULL
;
754 o
->save_source
= save
;
755 pa_idxset_put(o
->source
->outputs
, o
, NULL
);
757 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
758 o
->source
->n_corked
++;
760 /* Replace resampler */
761 if (new_resampler
!= o
->thread_info
.resampler
) {
762 if (o
->thread_info
.resampler
)
763 pa_resampler_free(o
->thread_info
.resampler
);
764 o
->thread_info
.resampler
= new_resampler
;
766 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
768 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
772 pa_frame_size(&o
->source
->sample_spec
),
776 &o
->source
->silence
);
779 pa_source_update_status(dest
);
781 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
783 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
785 /* Notify everyone */
786 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
787 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
792 /* Called from main context */
793 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, pa_bool_t save
) {
796 pa_source_output_assert_ref(o
);
797 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
798 pa_assert(o
->source
);
799 pa_source_assert_ref(dest
);
801 if (dest
== o
->source
)
804 if (!pa_source_output_may_move_to(o
, dest
))
805 return -PA_ERR_NOTSUPPORTED
;
807 if ((r
= pa_source_output_start_move(o
)) < 0)
810 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0)
816 /* Called from IO thread context */
817 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
818 pa_source_output_assert_ref(o
);
820 if (state
== o
->thread_info
.state
)
824 o
->state_change(o
, state
);
826 o
->thread_info
.state
= state
;
829 /* Called from IO thread context, except when it is not */
830 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
831 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
832 pa_source_output_assert_ref(o
);
836 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
837 pa_usec_t
*r
= userdata
;
838 pa_usec_t source_usec
= 0;
840 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
842 if (o
->source
->parent
.process_msg(PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_GET_LATENCY
, &source_usec
, 0, NULL
) >= 0)
848 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
850 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
851 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
854 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
856 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
859 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
860 pa_usec_t
*usec
= userdata
;
862 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
867 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
868 pa_usec_t
*r
= userdata
;
870 *r
= o
->thread_info
.requested_source_latency
;
875 return -PA_ERR_NOTIMPLEMENTED
;
878 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
879 pa_proplist
*pl
= NULL
;
880 pa_source_output_send_event_hook_data hook_data
;
882 pa_source_output_assert_ref(o
);
889 data
= pl
= pa_proplist_new();
891 hook_data
.source_output
= o
;
892 hook_data
.data
= data
;
893 hook_data
.event
= event
;
895 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
898 o
->send_event(o
, event
, data
);
902 pa_proplist_free(pl
);