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 PA_DEFINE_PUBLIC_CLASS(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
) {
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
;
87 o
->update_source_fixed_latency
= NULL
;
91 o
->suspend_within_thread
= NULL
;
94 o
->get_latency
= NULL
;
95 o
->state_change
= NULL
;
96 o
->may_move_to
= NULL
;
100 /* Called from main context */
101 int pa_source_output_new(
102 pa_source_output
**_o
,
104 pa_source_output_new_data
*data
,
105 pa_source_output_flags_t flags
) {
108 pa_resampler
*resampler
= NULL
;
109 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
115 pa_assert_ctl_context();
118 pa_proplist_update(data
->proplist
, PA_UPDATE_MERGE
, data
->client
->proplist
);
120 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_NEW
], data
)) < 0)
123 pa_return_val_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
), -PA_ERR_INVALID
);
126 data
->source
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SOURCE
);
127 data
->save_source
= FALSE
;
130 pa_return_val_if_fail(data
->source
, -PA_ERR_NOENTITY
);
131 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
132 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
134 if (!data
->sample_spec_is_set
)
135 data
->sample_spec
= data
->source
->sample_spec
;
137 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
139 if (!data
->channel_map_is_set
) {
140 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
141 data
->channel_map
= data
->source
->channel_map
;
143 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
146 pa_return_val_if_fail(pa_channel_map_valid(&data
->channel_map
), -PA_ERR_INVALID
);
147 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
149 if (flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
)
150 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
152 if (flags
& PA_SOURCE_OUTPUT_FIX_RATE
)
153 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
155 if (flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
156 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
157 data
->channel_map
= data
->source
->channel_map
;
160 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
161 pa_assert(pa_channel_map_valid(&data
->channel_map
));
163 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
164 data
->resample_method
= core
->resample_method
;
166 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
168 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
171 if ((flags
& PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND
) &&
172 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
173 pa_log("Failed to create source output: source is suspended.");
174 return -PA_ERR_BADSTATE
;
177 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
178 pa_log("Failed to create source output: too many outputs per source.");
179 return -PA_ERR_TOOLARGE
;
182 if ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
183 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
184 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
186 if (!(resampler
= pa_resampler_new(
188 &data
->source
->sample_spec
, &data
->source
->channel_map
,
189 &data
->sample_spec
, &data
->channel_map
,
190 data
->resample_method
,
191 ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
192 ((flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
193 (core
->disable_remixing
|| (flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
194 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
195 pa_log_warn("Unsupported resampling operation.");
196 return -PA_ERR_NOTSUPPORTED
;
200 o
= pa_msgobject_new(pa_source_output
);
201 o
->parent
.parent
.free
= source_output_free
;
202 o
->parent
.process_msg
= pa_source_output_process_msg
;
205 o
->state
= PA_SOURCE_OUTPUT_INIT
;
207 o
->proplist
= pa_proplist_copy(data
->proplist
);
208 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
209 o
->module
= data
->module
;
210 o
->source
= data
->source
;
211 o
->client
= data
->client
;
213 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
214 o
->requested_resample_method
= data
->resample_method
;
215 o
->sample_spec
= data
->sample_spec
;
216 o
->channel_map
= data
->channel_map
;
218 o
->direct_on_input
= data
->direct_on_input
;
220 o
->save_source
= data
->save_source
;
225 o
->thread_info
.state
= o
->state
;
226 o
->thread_info
.attached
= FALSE
;
227 o
->thread_info
.sample_spec
= o
->sample_spec
;
228 o
->thread_info
.resampler
= resampler
;
229 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
230 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
232 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
236 pa_frame_size(&o
->source
->sample_spec
),
240 &o
->source
->silence
);
242 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
243 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
246 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
248 if (o
->direct_on_input
)
249 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
251 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
253 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
255 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
256 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
));
258 /* Don't forget to call pa_source_output_put! */
264 /* Called from main context */
265 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
267 pa_assert_ctl_context();
272 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
273 pa_assert_se(o
->source
->n_corked
-- >= 1);
274 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
275 o
->source
->n_corked
++;
278 /* Called from main context */
279 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
281 pa_assert_ctl_context();
283 if (o
->state
== state
)
286 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);
288 update_n_corked(o
, state
);
291 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
)
292 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
294 pa_source_update_status(o
->source
);
297 /* Called from main context */
298 void pa_source_output_unlink(pa_source_output
*o
) {
301 pa_assert_ctl_context();
303 /* See pa_sink_unlink() for a couple of comments how this function
306 pa_source_output_ref(o
);
308 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
311 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
313 if (o
->direct_on_input
)
314 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
316 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
319 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
320 pa_source_output_unref(o
);
323 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
325 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
326 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
328 if (linked
&& o
->source
)
329 if (o
->source
->asyncmsgq
)
330 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
335 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
336 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
340 pa_source_update_status(o
->source
);
344 pa_core_maybe_vacuum(o
->core
);
346 pa_source_output_unref(o
);
349 /* Called from main context */
350 static void source_output_free(pa_object
* mo
) {
351 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
354 pa_assert_ctl_context();
355 pa_assert(pa_source_output_refcnt(o
) == 0);
357 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
358 pa_source_output_unlink(o
);
360 pa_log_info("Freeing output %u \"%s\"", o
->index
, pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)));
362 if (o
->thread_info
.delay_memblockq
)
363 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
365 if (o
->thread_info
.resampler
)
366 pa_resampler_free(o
->thread_info
.resampler
);
369 pa_proplist_free(o
->proplist
);
375 /* Called from main context */
376 void pa_source_output_put(pa_source_output
*o
) {
377 pa_source_output_state_t state
;
379 pa_source_output_assert_ref(o
);
380 pa_assert_ctl_context();
382 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
384 /* The following fields must be initialized properly */
388 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
390 update_n_corked(o
, state
);
393 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
395 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
396 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
398 pa_source_update_status(o
->source
);
401 /* Called from main context */
402 void pa_source_output_kill(pa_source_output
*o
) {
403 pa_source_output_assert_ref(o
);
404 pa_assert_ctl_context();
405 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
410 /* Called from main context */
411 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
412 pa_usec_t r
[2] = { 0, 0 };
414 pa_source_output_assert_ref(o
);
415 pa_assert_ctl_context();
416 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
418 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
421 r
[0] += o
->get_latency(o
);
424 *source_latency
= r
[1];
429 /* Called from thread context */
430 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
432 size_t limit
, mbs
= 0;
434 pa_source_output_assert_ref(o
);
435 pa_source_output_assert_io_context(o
);
436 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
438 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
440 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
443 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
445 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
446 pa_log_debug("Delay queue overflow!");
447 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
, TRUE
);
450 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
452 if (limit
> 0 && o
->source
->monitor_of
) {
456 /* Hmm, check the latency for knowing how much of the buffered
457 * data is actually still unplayed and might hence still
458 * change. This is suboptimal. Ideally we'd have a call like
459 * pa_sink_get_changeable_size() or so that tells us how much
460 * of the queued data is actually still changeable. Hence
463 latency
= pa_sink_get_latency_within_thread(o
->source
->monitor_of
);
465 n
= pa_usec_to_bytes(latency
, &o
->source
->sample_spec
);
471 /* Implement the delay queue */
472 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
477 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
479 if (qchunk
.length
> length
)
480 qchunk
.length
= length
;
482 pa_assert(qchunk
.length
> 0);
484 if (!o
->thread_info
.resampler
)
490 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
492 if (qchunk
.length
> mbs
)
495 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
497 if (rchunk
.length
> 0)
501 pa_memblock_unref(rchunk
.memblock
);
504 pa_memblock_unref(qchunk
.memblock
);
505 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
509 /* Called from thread context */
510 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
512 pa_source_output_assert_ref(o
);
513 pa_source_output_assert_io_context(o
);
514 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
515 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
520 if (o
->process_rewind
) {
521 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
523 if (o
->thread_info
.resampler
)
524 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
526 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
529 o
->process_rewind(o
, nbytes
);
531 if (o
->thread_info
.resampler
)
532 pa_resampler_reset(o
->thread_info
.resampler
);
535 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
538 /* Called from thread context */
539 size_t pa_source_output_get_max_rewind(pa_source_output
*o
) {
540 pa_source_output_assert_ref(o
);
541 pa_source_output_assert_io_context(o
);
543 return o
->thread_info
.resampler
? pa_resampler_request(o
->thread_info
.resampler
, o
->source
->thread_info
.max_rewind
) : o
->source
->thread_info
.max_rewind
;
546 /* Called from thread context */
547 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
548 pa_source_output_assert_ref(o
);
549 pa_source_output_assert_io_context(o
);
550 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
551 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
553 if (o
->update_max_rewind
)
554 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
557 /* Called from thread context */
558 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
559 pa_source_output_assert_ref(o
);
560 pa_source_output_assert_io_context(o
);
562 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
563 usec
= o
->source
->thread_info
.fixed_latency
;
565 if (usec
!= (pa_usec_t
) -1)
566 usec
= PA_CLAMP(usec
, o
->source
->thread_info
.min_latency
, o
->source
->thread_info
.max_latency
);
568 o
->thread_info
.requested_source_latency
= usec
;
569 pa_source_invalidate_requested_latency(o
->source
, TRUE
);
574 /* Called from main context */
575 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
576 pa_source_output_assert_ref(o
);
577 pa_assert_ctl_context();
579 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
580 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
584 /* If this source output is not realized yet or is being moved, we
585 * have to touch the thread info data directly */
588 if (!(o
->source
->flags
& PA_SOURCE_DYNAMIC_LATENCY
))
589 usec
= pa_source_get_fixed_latency(o
->source
);
591 if (usec
!= (pa_usec_t
) -1) {
592 pa_usec_t min_latency
, max_latency
;
593 pa_source_get_latency_range(o
->source
, &min_latency
, &max_latency
);
594 usec
= PA_CLAMP(usec
, min_latency
, max_latency
);
598 o
->thread_info
.requested_source_latency
= usec
;
603 /* Called from main context */
604 pa_usec_t
pa_source_output_get_requested_latency(pa_source_output
*o
) {
605 pa_source_output_assert_ref(o
);
606 pa_assert_ctl_context();
608 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
) && o
->source
) {
610 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
614 /* If this source output is not realized yet or is being moved, we
615 * have to touch the thread info data directly */
617 return o
->thread_info
.requested_source_latency
;
620 /* Called from main context */
621 void pa_source_output_cork(pa_source_output
*o
, pa_bool_t b
) {
622 pa_source_output_assert_ref(o
);
623 pa_assert_ctl_context();
624 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
626 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
629 /* Called from main context */
630 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
631 pa_source_output_assert_ref(o
);
632 pa_assert_ctl_context();
633 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
634 pa_return_val_if_fail(o
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
636 if (o
->sample_spec
.rate
== rate
)
639 o
->sample_spec
.rate
= rate
;
641 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
643 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
647 /* Called from main context */
648 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
650 pa_assert_ctl_context();
651 pa_source_output_assert_ref(o
);
653 if (!name
&& !pa_proplist_contains(o
->proplist
, PA_PROP_MEDIA_NAME
))
656 old
= pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
);
658 if (old
&& name
&& !strcmp(old
, name
))
662 pa_proplist_sets(o
->proplist
, PA_PROP_MEDIA_NAME
, name
);
664 pa_proplist_unset(o
->proplist
, PA_PROP_MEDIA_NAME
);
666 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
667 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
668 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
672 /* Called from main thread */
673 void pa_source_output_update_proplist(pa_source_output
*o
, pa_update_mode_t mode
, pa_proplist
*p
) {
674 pa_source_output_assert_ref(o
);
675 pa_assert_ctl_context();
678 pa_proplist_update(o
->proplist
, mode
, p
);
680 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
)) {
681 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
], o
);
682 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
686 /* Called from main context */
687 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
688 pa_source_output_assert_ref(o
);
689 pa_assert_ctl_context();
691 return o
->actual_resample_method
;
694 /* Called from main context */
695 pa_bool_t
pa_source_output_may_move(pa_source_output
*o
) {
696 pa_source_output_assert_ref(o
);
697 pa_assert_ctl_context();
698 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
700 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
703 if (o
->direct_on_input
)
709 /* Called from main context */
710 pa_bool_t
pa_source_output_may_move_to(pa_source_output
*o
, pa_source
*dest
) {
711 pa_source_output_assert_ref(o
);
712 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
713 pa_source_assert_ref(dest
);
715 if (dest
== o
->source
)
718 if (!pa_source_output_may_move(o
))
721 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
722 pa_log_warn("Failed to move source output: too many outputs per source.");
727 if (!o
->may_move_to(o
, dest
))
733 /* Called from main context */
734 int pa_source_output_start_move(pa_source_output
*o
) {
738 pa_source_output_assert_ref(o
);
739 pa_assert_ctl_context();
740 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
741 pa_assert(o
->source
);
743 if (!pa_source_output_may_move(o
))
744 return -PA_ERR_NOTSUPPORTED
;
746 if ((r
= pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
], o
)) < 0)
751 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
753 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
754 pa_assert_se(origin
->n_corked
-- >= 1);
756 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
758 pa_source_update_status(o
->source
);
761 pa_source_output_unref(o
);
766 /* Called from main context */
767 int pa_source_output_finish_move(pa_source_output
*o
, pa_source
*dest
, pa_bool_t save
) {
768 pa_resampler
*new_resampler
;
770 pa_source_output_assert_ref(o
);
771 pa_assert_ctl_context();
772 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
773 pa_assert(!o
->source
);
774 pa_source_assert_ref(dest
);
776 if (!pa_source_output_may_move_to(o
, dest
))
779 if (o
->thread_info
.resampler
&&
780 pa_sample_spec_equal(pa_resampler_input_sample_spec(o
->thread_info
.resampler
), &dest
->sample_spec
) &&
781 pa_channel_map_equal(pa_resampler_input_channel_map(o
->thread_info
.resampler
), &dest
->channel_map
))
783 /* Try to reuse the old resampler if possible */
784 new_resampler
= o
->thread_info
.resampler
;
786 else if ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
787 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
) ||
788 !pa_channel_map_equal(&o
->channel_map
, &dest
->channel_map
)) {
790 /* Okey, we need a new resampler for the new source */
792 if (!(new_resampler
= pa_resampler_new(
794 &dest
->sample_spec
, &dest
->channel_map
,
795 &o
->sample_spec
, &o
->channel_map
,
796 o
->requested_resample_method
,
797 ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
798 ((o
->flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
799 (o
->core
->disable_remixing
|| (o
->flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
800 pa_log_warn("Unsupported resampling operation.");
801 return -PA_ERR_NOTSUPPORTED
;
804 new_resampler
= NULL
;
810 o
->save_source
= save
;
811 pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
);
813 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
814 o
->source
->n_corked
++;
816 /* Replace resampler */
817 if (new_resampler
!= o
->thread_info
.resampler
) {
818 if (o
->thread_info
.resampler
)
819 pa_resampler_free(o
->thread_info
.resampler
);
820 o
->thread_info
.resampler
= new_resampler
;
822 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
824 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
828 pa_frame_size(&o
->source
->sample_spec
),
832 &o
->source
->silence
);
835 pa_source_update_status(dest
);
837 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
839 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
841 /* Notify everyone */
842 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
843 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
848 /* Called from main context */
849 void pa_source_output_fail_move(pa_source_output
*o
) {
851 pa_source_output_assert_ref(o
);
852 pa_assert_ctl_context();
853 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
854 pa_assert(!o
->source
);
856 /* Check if someone wants this source output? */
857 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL
], o
) == PA_HOOK_STOP
)
863 pa_source_output_kill(o
);
866 /* Called from main context */
867 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, pa_bool_t save
) {
870 pa_source_output_assert_ref(o
);
871 pa_assert_ctl_context();
872 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
873 pa_assert(o
->source
);
874 pa_source_assert_ref(dest
);
876 if (dest
== o
->source
)
879 if (!pa_source_output_may_move_to(o
, dest
))
880 return -PA_ERR_NOTSUPPORTED
;
882 pa_source_output_ref(o
);
884 if ((r
= pa_source_output_start_move(o
)) < 0) {
885 pa_source_output_unref(o
);
889 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0) {
890 pa_source_output_fail_move(o
);
891 pa_source_output_unref(o
);
895 pa_source_output_unref(o
);
900 /* Called from IO thread context */
901 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
902 pa_source_output_assert_ref(o
);
903 pa_source_output_assert_io_context(o
);
905 if (state
== o
->thread_info
.state
)
909 o
->state_change(o
, state
);
911 o
->thread_info
.state
= state
;
914 /* Called from IO thread context, except when it is not */
915 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
916 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
917 pa_source_output_assert_ref(o
);
921 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
922 pa_usec_t
*r
= userdata
;
924 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
925 r
[1] += pa_source_get_latency_within_thread(o
->source
);
930 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
932 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
933 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
936 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
938 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
941 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
942 pa_usec_t
*usec
= userdata
;
944 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
949 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
950 pa_usec_t
*r
= userdata
;
952 *r
= o
->thread_info
.requested_source_latency
;
957 return -PA_ERR_NOTIMPLEMENTED
;
960 /* Called from main context */
961 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
962 pa_proplist
*pl
= NULL
;
963 pa_source_output_send_event_hook_data hook_data
;
965 pa_source_output_assert_ref(o
);
966 pa_assert_ctl_context();
973 data
= pl
= pa_proplist_new();
975 hook_data
.source_output
= o
;
976 hook_data
.data
= data
;
977 hook_data
.event
= event
;
979 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
982 o
->send_event(o
, event
, data
);
986 pa_proplist_free(pl
);