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 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
;
92 o
->get_latency
= NULL
;
93 o
->state_change
= NULL
;
94 o
->may_move_to
= NULL
;
98 /* Called from main context */
99 int pa_source_output_new(
100 pa_source_output
**_o
,
102 pa_source_output_new_data
*data
,
103 pa_source_output_flags_t flags
) {
106 pa_resampler
*resampler
= NULL
;
107 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
115 pa_proplist_update(data
->proplist
, PA_UPDATE_MERGE
, data
->client
->proplist
);
117 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_NEW
], data
)) < 0)
120 pa_return_val_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
), -PA_ERR_INVALID
);
123 data
->source
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SOURCE
);
124 data
->save_source
= FALSE
;
127 pa_return_val_if_fail(data
->source
, -PA_ERR_NOENTITY
);
128 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data
->source
)), -PA_ERR_BADSTATE
);
129 pa_return_val_if_fail(!data
->direct_on_input
|| data
->direct_on_input
->sink
== data
->source
->monitor_of
, -PA_ERR_INVALID
);
131 if (!data
->sample_spec_is_set
)
132 data
->sample_spec
= data
->source
->sample_spec
;
134 pa_return_val_if_fail(pa_sample_spec_valid(&data
->sample_spec
), -PA_ERR_INVALID
);
136 if (!data
->channel_map_is_set
) {
137 if (pa_channel_map_compatible(&data
->source
->channel_map
, &data
->sample_spec
))
138 data
->channel_map
= data
->source
->channel_map
;
140 pa_channel_map_init_extend(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
143 pa_return_val_if_fail(pa_channel_map_valid(&data
->channel_map
), -PA_ERR_INVALID
);
144 pa_return_val_if_fail(pa_channel_map_compatible(&data
->channel_map
, &data
->sample_spec
), -PA_ERR_INVALID
);
146 if (flags
& PA_SOURCE_OUTPUT_FIX_FORMAT
)
147 data
->sample_spec
.format
= data
->source
->sample_spec
.format
;
149 if (flags
& PA_SOURCE_OUTPUT_FIX_RATE
)
150 data
->sample_spec
.rate
= data
->source
->sample_spec
.rate
;
152 if (flags
& PA_SOURCE_OUTPUT_FIX_CHANNELS
) {
153 data
->sample_spec
.channels
= data
->source
->sample_spec
.channels
;
154 data
->channel_map
= data
->source
->channel_map
;
157 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
158 pa_assert(pa_channel_map_valid(&data
->channel_map
));
160 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
161 data
->resample_method
= core
->resample_method
;
163 pa_return_val_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
, -PA_ERR_INVALID
);
165 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
], data
)) < 0)
168 if ((flags
& PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND
) &&
169 pa_source_get_state(data
->source
) == PA_SOURCE_SUSPENDED
) {
170 pa_log("Failed to create source output: source is suspended.");
171 return -PA_ERR_BADSTATE
;
174 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
175 pa_log("Failed to create source output: too many outputs per source.");
176 return -PA_ERR_TOOLARGE
;
179 if ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
180 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
181 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
183 if (!(resampler
= pa_resampler_new(
185 &data
->source
->sample_spec
, &data
->source
->channel_map
,
186 &data
->sample_spec
, &data
->channel_map
,
187 data
->resample_method
,
188 ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
189 ((flags
& PA_SOURCE_OUTPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
190 (core
->disable_remixing
|| (flags
& PA_SOURCE_OUTPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
191 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
192 pa_log_warn("Unsupported resampling operation.");
193 return -PA_ERR_NOTSUPPORTED
;
197 o
= pa_msgobject_new(pa_source_output
);
198 o
->parent
.parent
.free
= source_output_free
;
199 o
->parent
.process_msg
= pa_source_output_process_msg
;
202 o
->state
= PA_SOURCE_OUTPUT_INIT
;
204 o
->proplist
= pa_proplist_copy(data
->proplist
);
205 o
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
206 o
->module
= data
->module
;
207 o
->source
= data
->source
;
208 o
->client
= data
->client
;
210 o
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
211 o
->requested_resample_method
= data
->resample_method
;
212 o
->sample_spec
= data
->sample_spec
;
213 o
->channel_map
= data
->channel_map
;
215 o
->direct_on_input
= data
->direct_on_input
;
217 o
->save_source
= data
->save_source
;
222 o
->thread_info
.state
= o
->state
;
223 o
->thread_info
.attached
= FALSE
;
224 o
->thread_info
.sample_spec
= o
->sample_spec
;
225 o
->thread_info
.resampler
= resampler
;
226 o
->thread_info
.requested_source_latency
= (pa_usec_t
) -1;
227 o
->thread_info
.direct_on_input
= o
->direct_on_input
;
229 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
233 pa_frame_size(&o
->source
->sample_spec
),
237 &o
->source
->silence
);
239 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
240 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
243 pa_assert_se(pa_idxset_put(o
->client
->source_outputs
, o
, NULL
) >= 0);
245 if (o
->direct_on_input
)
246 pa_assert_se(pa_idxset_put(o
->direct_on_input
->direct_outputs
, o
, NULL
) == 0);
248 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
250 pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)),
252 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
),
253 pa_channel_map_snprint(cm
, sizeof(cm
), &o
->channel_map
));
255 /* Don't forget to call pa_source_output_put! */
261 /* Called from main context */
262 static void update_n_corked(pa_source_output
*o
, pa_source_output_state_t state
) {
268 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
269 pa_assert_se(o
->source
->n_corked
-- >= 1);
270 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
271 o
->source
->n_corked
++;
274 /* Called from main context */
275 static void source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
278 if (o
->state
== state
)
281 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);
283 update_n_corked(o
, state
);
286 if (state
!= PA_SOURCE_OUTPUT_UNLINKED
)
287 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
], o
);
289 pa_source_update_status(o
->source
);
292 /* Called from main context */
293 void pa_source_output_unlink(pa_source_output
*o
) {
297 /* See pa_sink_unlink() for a couple of comments how this function
300 pa_source_output_ref(o
);
302 linked
= PA_SOURCE_OUTPUT_IS_LINKED(o
->state
);
305 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
307 if (o
->direct_on_input
)
308 pa_idxset_remove_by_data(o
->direct_on_input
->direct_outputs
, o
, NULL
);
310 pa_idxset_remove_by_data(o
->core
->source_outputs
, o
, NULL
);
313 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
314 pa_source_output_unref(o
);
317 pa_idxset_remove_by_data(o
->client
->source_outputs
, o
, NULL
);
319 update_n_corked(o
, PA_SOURCE_OUTPUT_UNLINKED
);
320 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
322 if (linked
&& o
->source
)
323 if (o
->source
->asyncmsgq
)
324 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
) == 0);
329 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
330 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
334 pa_source_update_status(o
->source
);
338 pa_source_output_unref(o
);
341 /* Called from main context */
342 static void source_output_free(pa_object
* mo
) {
343 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
346 pa_assert(pa_source_output_refcnt(o
) == 0);
348 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
349 pa_source_output_unlink(o
);
351 pa_log_info("Freeing output %u \"%s\"", o
->index
, pa_strnull(pa_proplist_gets(o
->proplist
, PA_PROP_MEDIA_NAME
)));
353 pa_assert(!o
->thread_info
.attached
);
355 if (o
->thread_info
.delay_memblockq
)
356 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
358 if (o
->thread_info
.resampler
)
359 pa_resampler_free(o
->thread_info
.resampler
);
362 pa_proplist_free(o
->proplist
);
368 /* Called from main context */
369 void pa_source_output_put(pa_source_output
*o
) {
370 pa_source_output_state_t state
;
371 pa_source_output_assert_ref(o
);
373 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
375 /* The following fields must be initialized properly */
379 state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
381 update_n_corked(o
, state
);
384 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
386 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
387 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
389 pa_source_update_status(o
->source
);
392 /* Called from main context */
393 void pa_source_output_kill(pa_source_output
*o
) {
394 pa_source_output_assert_ref(o
);
395 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
400 /* Called from main context */
401 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
, pa_usec_t
*source_latency
) {
402 pa_usec_t r
[2] = { 0, 0 };
404 pa_source_output_assert_ref(o
);
405 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
407 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
410 r
[0] += o
->get_latency(o
);
413 *source_latency
= r
[1];
418 /* Called from thread context */
419 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
421 size_t limit
, mbs
= 0;
423 pa_source_output_assert_ref(o
);
424 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
426 pa_assert(pa_frame_aligned(chunk
->length
, &o
->source
->sample_spec
));
428 if (!o
->push
|| o
->thread_info
.state
== PA_SOURCE_OUTPUT_CORKED
)
431 pa_assert(o
->thread_info
.state
== PA_SOURCE_OUTPUT_RUNNING
);
433 if (pa_memblockq_push(o
->thread_info
.delay_memblockq
, chunk
) < 0) {
434 pa_log_debug("Delay queue overflow!");
435 pa_memblockq_seek(o
->thread_info
.delay_memblockq
, (int64_t) chunk
->length
, PA_SEEK_RELATIVE
);
438 limit
= o
->process_rewind
? 0 : o
->source
->thread_info
.max_rewind
;
440 /* Implement the delay queue */
441 while ((length
= pa_memblockq_get_length(o
->thread_info
.delay_memblockq
)) > limit
) {
446 pa_assert_se(pa_memblockq_peek(o
->thread_info
.delay_memblockq
, &qchunk
) >= 0);
448 if (qchunk
.length
> length
)
449 qchunk
.length
= length
;
451 pa_assert(qchunk
.length
> 0);
453 if (!o
->thread_info
.resampler
)
459 mbs
= pa_resampler_max_block_size(o
->thread_info
.resampler
);
461 if (qchunk
.length
> mbs
)
464 pa_resampler_run(o
->thread_info
.resampler
, &qchunk
, &rchunk
);
466 if (rchunk
.length
> 0)
470 pa_memblock_unref(rchunk
.memblock
);
473 pa_memblock_unref(qchunk
.memblock
);
474 pa_memblockq_drop(o
->thread_info
.delay_memblockq
, qchunk
.length
);
478 /* Called from thread context */
479 void pa_source_output_process_rewind(pa_source_output
*o
, size_t nbytes
/* in source sample spec */) {
480 pa_source_output_assert_ref(o
);
482 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
483 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
488 if (o
->process_rewind
) {
489 pa_assert(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
) == 0);
491 if (o
->thread_info
.resampler
)
492 nbytes
= pa_resampler_result(o
->thread_info
.resampler
, nbytes
);
494 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes
);
497 o
->process_rewind(o
, nbytes
);
499 if (o
->thread_info
.resampler
)
500 pa_resampler_reset(o
->thread_info
.resampler
);
503 pa_memblockq_rewind(o
->thread_info
.delay_memblockq
, nbytes
);
506 /* Called from thread context */
507 void pa_source_output_update_max_rewind(pa_source_output
*o
, size_t nbytes
/* in the source's sample spec */) {
508 pa_source_output_assert_ref(o
);
509 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->thread_info
.state
));
510 pa_assert(pa_frame_aligned(nbytes
, &o
->source
->sample_spec
));
512 if (o
->update_max_rewind
)
513 o
->update_max_rewind(o
, o
->thread_info
.resampler
? pa_resampler_result(o
->thread_info
.resampler
, nbytes
) : nbytes
);
516 /* Called from thread context */
517 static pa_usec_t
fixup_latency(pa_source
*s
, pa_usec_t usec
) {
518 pa_source_assert_ref(s
);
520 if (usec
== (pa_usec_t
) -1)
523 if (s
->thread_info
.max_latency
> 0 && usec
> s
->thread_info
.max_latency
)
524 usec
= s
->thread_info
.max_latency
;
526 if (s
->thread_info
.min_latency
> 0 && usec
< s
->thread_info
.min_latency
)
527 usec
= s
->thread_info
.min_latency
;
532 /* Called from thread context */
533 pa_usec_t
pa_source_output_set_requested_latency_within_thread(pa_source_output
*o
, pa_usec_t usec
) {
534 pa_source_output_assert_ref(o
);
536 usec
= fixup_latency(o
->source
, usec
);
537 o
->thread_info
.requested_source_latency
= usec
;
538 pa_source_invalidate_requested_latency(o
->source
);
543 /* Called from main context */
544 pa_usec_t
pa_source_output_set_requested_latency(pa_source_output
*o
, pa_usec_t usec
) {
545 pa_source_output_assert_ref(o
);
547 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
548 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
550 /* If this source output is not realized yet, we have to touch
551 * the thread info data directly */
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
) {
562 pa_source_output_assert_ref(o
);
564 if (PA_SOURCE_OUTPUT_IS_LINKED(o
->state
))
565 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
567 /* If this source output is not realized yet, we have to touch
568 * the thread info data directly */
569 usec
= 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
;
751 o
->save_source
= save
;
752 pa_idxset_put(o
->source
->outputs
, o
, NULL
);
754 if (pa_source_output_get_state(o
) == PA_SOURCE_OUTPUT_CORKED
)
755 o
->source
->n_corked
++;
757 /* Replace resampler */
758 if (new_resampler
!= o
->thread_info
.resampler
) {
759 if (o
->thread_info
.resampler
)
760 pa_resampler_free(o
->thread_info
.resampler
);
761 o
->thread_info
.resampler
= new_resampler
;
763 pa_memblockq_free(o
->thread_info
.delay_memblockq
);
765 o
->thread_info
.delay_memblockq
= pa_memblockq_new(
769 pa_frame_size(&o
->source
->sample_spec
),
773 &o
->source
->silence
);
776 pa_source_update_status(dest
);
777 pa_assert_se(pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
) == 0);
779 pa_log_debug("Successfully moved source output %i to %s.", o
->index
, dest
->name
);
781 /* Notify everyone */
785 pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
], o
);
786 pa_subscription_post(o
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
791 /* Called from main context */
792 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
, pa_bool_t save
) {
795 pa_source_output_assert_ref(o
);
796 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o
->state
));
797 pa_assert(o
->source
);
798 pa_source_assert_ref(dest
);
800 if (dest
== o
->source
)
803 if (!pa_source_output_may_move_to(o
, dest
))
804 return -PA_ERR_NOTSUPPORTED
;
806 if ((r
= pa_source_output_start_move(o
)) < 0)
809 if ((r
= pa_source_output_finish_move(o
, dest
, save
)) < 0)
815 /* Called from IO thread context */
816 void pa_source_output_set_state_within_thread(pa_source_output
*o
, pa_source_output_state_t state
) {
817 pa_source_output_assert_ref(o
);
819 if (state
== o
->thread_info
.state
)
823 o
->state_change(o
, state
);
825 o
->thread_info
.state
= state
;
828 /* Called from IO thread context, except when it is not */
829 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
830 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
831 pa_source_output_assert_ref(o
);
835 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
: {
836 pa_usec_t
*r
= userdata
;
837 pa_usec_t source_usec
= 0;
839 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(o
->thread_info
.delay_memblockq
), &o
->source
->sample_spec
);
841 if (o
->source
->parent
.process_msg(PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_GET_LATENCY
, &source_usec
, 0, NULL
) >= 0)
847 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
:
849 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
850 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
853 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
:
855 pa_source_output_set_state_within_thread(o
, PA_PTR_TO_UINT(userdata
));
858 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
859 pa_usec_t
*usec
= userdata
;
861 *usec
= pa_source_output_set_requested_latency_within_thread(o
, *usec
);
866 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
867 pa_usec_t
*r
= userdata
;
869 *r
= o
->thread_info
.requested_source_latency
;
874 return -PA_ERR_NOTIMPLEMENTED
;
877 void pa_source_output_send_event(pa_source_output
*o
, const char *event
, pa_proplist
*data
) {
878 pa_proplist
*pl
= NULL
;
879 pa_source_output_send_event_hook_data hook_data
;
881 pa_source_output_assert_ref(o
);
888 data
= pl
= pa_proplist_new();
890 hook_data
.source_output
= o
;
891 hook_data
.data
= data
;
892 hook_data
.event
= event
;
894 if (pa_hook_fire(&o
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
], &hook_data
) < 0)
897 o
->send_event(o
, event
, data
);
901 pa_proplist_free(pl
);