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) {
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];
114 pa_assert_ctl_context();
117 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
119 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
122 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
125 data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
126 data->save_source = FALSE;
129 pa_return_val_if_fail(data->source, -PA_ERR_NOENTITY);
130 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
131 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
133 if (!data->sample_spec_is_set)
134 data->sample_spec = data->source->sample_spec;
136 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
138 if (!data->channel_map_is_set) {
139 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
140 data->channel_map = data->source->channel_map;
142 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
145 pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
146 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
148 if (flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
149 data->sample_spec.format = data->source->sample_spec.format;
151 if (flags & PA_SOURCE_OUTPUT_FIX_RATE)
152 data->sample_spec.rate = data->source->sample_spec.rate;
154 if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
155 data->sample_spec.channels = data->source->sample_spec.channels;
156 data->channel_map = data->source->channel_map;
159 pa_assert(pa_sample_spec_valid(&data->sample_spec));
160 pa_assert(pa_channel_map_valid(&data->channel_map));
162 if (data->resample_method == PA_RESAMPLER_INVALID)
163 data->resample_method = core->resample_method;
165 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
167 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
170 if ((flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND) &&
171 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
172 pa_log("Failed to create source output: source is suspended.");
173 return -PA_ERR_BADSTATE;
176 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
177 pa_log("Failed to create source output: too many outputs per source.");
178 return -PA_ERR_TOOLARGE;
181 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
182 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
183 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
185 if (!(resampler = pa_resampler_new(
187 &data->source->sample_spec, &data->source->channel_map,
188 &data->sample_spec, &data->channel_map,
189 data->resample_method,
190 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
191 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
192 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
193 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
194 pa_log_warn("Unsupported resampling operation.");
195 return -PA_ERR_NOTSUPPORTED;
199 o = pa_msgobject_new(pa_source_output);
200 o->parent.parent.free = source_output_free;
201 o->parent.process_msg = pa_source_output_process_msg;
204 o->state = PA_SOURCE_OUTPUT_INIT;
206 o->proplist = pa_proplist_copy(data->proplist);
207 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
208 o->module = data->module;
209 o->source = data->source;
210 o->client = data->client;
212 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
213 o->requested_resample_method = data->resample_method;
214 o->sample_spec = data->sample_spec;
215 o->channel_map = data->channel_map;
217 o->direct_on_input = data->direct_on_input;
219 o->save_source = data->save_source;
224 o->thread_info.state = o->state;
225 o->thread_info.attached = FALSE;
226 o->thread_info.sample_spec = o->sample_spec;
227 o->thread_info.resampler = resampler;
228 o->thread_info.requested_source_latency = (pa_usec_t) -1;
229 o->thread_info.direct_on_input = o->direct_on_input;
231 o->thread_info.delay_memblockq = pa_memblockq_new(
235 pa_frame_size(&o->source->sample_spec),
239 &o->source->silence);
241 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
242 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
245 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
247 if (o->direct_on_input)
248 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
250 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
252 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
254 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
255 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
257 /* Don't forget to call pa_source_output_put! */
263 /* Called from main context */
264 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
266 pa_assert_ctl_context();
271 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
272 pa_assert_se(o->source->n_corked -- >= 1);
273 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
274 o->source->n_corked++;
277 /* Called from main context */
278 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
280 pa_assert_ctl_context();
282 if (o->state == state)
285 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);
287 update_n_corked(o, state);
290 if (state != PA_SOURCE_OUTPUT_UNLINKED)
291 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
293 pa_source_update_status(o->source);
296 /* Called from main context */
297 void pa_source_output_unlink(pa_source_output*o) {
300 pa_assert_ctl_context();
302 /* See pa_sink_unlink() for a couple of comments how this function
305 pa_source_output_ref(o);
307 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
310 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
312 if (o->direct_on_input)
313 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
315 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
318 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
319 pa_source_output_unref(o);
322 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
324 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
325 o->state = PA_SOURCE_OUTPUT_UNLINKED;
327 if (linked && o->source)
328 if (o->source->asyncmsgq)
329 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
334 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
335 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
339 pa_source_update_status(o->source);
343 pa_core_maybe_vacuum(o->core);
345 pa_source_output_unref(o);
348 /* Called from main context */
349 static void source_output_free(pa_object* mo) {
350 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
353 pa_assert_ctl_context();
354 pa_assert(pa_source_output_refcnt(o) == 0);
356 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
357 pa_source_output_unlink(o);
359 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
361 pa_assert(!o->thread_info.attached);
363 if (o->thread_info.delay_memblockq)
364 pa_memblockq_free(o->thread_info.delay_memblockq);
366 if (o->thread_info.resampler)
367 pa_resampler_free(o->thread_info.resampler);
370 pa_proplist_free(o->proplist);
376 /* Called from main context */
377 void pa_source_output_put(pa_source_output *o) {
378 pa_source_output_state_t state;
380 pa_source_output_assert_ref(o);
381 pa_assert_ctl_context();
383 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
385 /* The following fields must be initialized properly */
389 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
391 update_n_corked(o, state);
394 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
396 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
397 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
399 pa_source_update_status(o->source);
402 /* Called from main context */
403 void pa_source_output_kill(pa_source_output*o) {
404 pa_source_output_assert_ref(o);
405 pa_assert_ctl_context();
406 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
411 /* Called from main context */
412 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
413 pa_usec_t r[2] = { 0, 0 };
415 pa_source_output_assert_ref(o);
416 pa_assert_ctl_context();
417 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
419 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
422 r[0] += o->get_latency(o);
425 *source_latency = r[1];
430 /* Called from thread context */
431 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
433 size_t limit, mbs = 0;
435 pa_source_output_assert_ref(o);
436 pa_source_output_assert_io_context(o);
437 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
439 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
441 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
444 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
446 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
447 pa_log_debug("Delay queue overflow!");
448 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
451 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
453 if (limit > 0 && o->source->monitor_of) {
457 /* Hmm, check the latency for knowing how much of the buffered
458 * data is actually still unplayed and might hence still
459 * change. This is suboptimal. Ideally we'd have a call like
460 * pa_sink_get_changeable_size() or so that tells us how much
461 * of the queued data is actually still changeable. Hence
464 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
466 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
472 /* Implement the delay queue */
473 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
478 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
480 if (qchunk.length > length)
481 qchunk.length = length;
483 pa_assert(qchunk.length > 0);
485 if (!o->thread_info.resampler)
491 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
493 if (qchunk.length > mbs)
496 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
498 if (rchunk.length > 0)
502 pa_memblock_unref(rchunk.memblock);
505 pa_memblock_unref(qchunk.memblock);
506 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
510 /* Called from thread context */
511 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
513 pa_source_output_assert_ref(o);
514 pa_source_output_assert_io_context(o);
515 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
516 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
521 if (o->process_rewind) {
522 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
524 if (o->thread_info.resampler)
525 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
527 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
530 o->process_rewind(o, nbytes);
532 if (o->thread_info.resampler)
533 pa_resampler_reset(o->thread_info.resampler);
536 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
539 /* Called from thread context */
540 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
541 pa_source_output_assert_ref(o);
542 pa_source_output_assert_io_context(o);
543 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
544 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
546 if (o->update_max_rewind)
547 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
550 /* Called from thread context */
551 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
552 pa_source_output_assert_ref(o);
553 pa_source_output_assert_io_context(o);
555 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
556 usec = o->source->fixed_latency;
558 if (usec != (pa_usec_t) -1)
559 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
561 o->thread_info.requested_source_latency = usec;
562 pa_source_invalidate_requested_latency(o->source);
567 /* Called from main context */
568 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
569 pa_source_output_assert_ref(o);
570 pa_assert_ctl_context();
572 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
573 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
577 /* If this source output is not realized yet or is being moved, we
578 * have to touch the thread info data directly */
581 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
582 usec = o->source->fixed_latency;
584 if (usec != (pa_usec_t) -1) {
585 pa_usec_t min_latency, max_latency;
586 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
587 usec = PA_CLAMP(usec, min_latency, max_latency);
591 o->thread_info.requested_source_latency = usec;
596 /* Called from main context */
597 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
598 pa_source_output_assert_ref(o);
599 pa_assert_ctl_context();
601 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
603 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
607 /* If this source output is not realized yet or is being moved, we
608 * have to touch the thread info data directly */
610 return o->thread_info.requested_source_latency;
613 /* Called from main context */
614 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
615 pa_source_output_assert_ref(o);
616 pa_assert_ctl_context();
617 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
619 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
622 /* Called from main context */
623 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
624 pa_source_output_assert_ref(o);
625 pa_assert_ctl_context();
626 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
627 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
629 if (o->sample_spec.rate == rate)
632 o->sample_spec.rate = rate;
634 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
636 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
640 /* Called from main context */
641 void pa_source_output_set_name(pa_source_output *o, const char *name) {
643 pa_assert_ctl_context();
644 pa_source_output_assert_ref(o);
646 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
649 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
651 if (old && name && !strcmp(old, name))
655 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
657 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
659 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
660 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
661 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
665 /* Called from main thread */
666 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
667 pa_source_output_assert_ref(o);
668 pa_assert_ctl_context();
671 pa_proplist_update(o->proplist, mode, p);
673 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
674 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
675 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
679 /* Called from main context */
680 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
681 pa_source_output_assert_ref(o);
682 pa_assert_ctl_context();
684 return o->actual_resample_method;
687 /* Called from main context */
688 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
689 pa_source_output_assert_ref(o);
690 pa_assert_ctl_context();
691 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
693 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
696 if (o->direct_on_input)
702 /* Called from main context */
703 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
704 pa_source_output_assert_ref(o);
705 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
706 pa_source_assert_ref(dest);
708 if (dest == o->source)
711 if (!pa_source_output_may_move(o))
714 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
715 pa_log_warn("Failed to move source output: too many outputs per source.");
720 if (!o->may_move_to(o, dest))
726 /* Called from main context */
727 int pa_source_output_start_move(pa_source_output *o) {
731 pa_source_output_assert_ref(o);
732 pa_assert_ctl_context();
733 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
734 pa_assert(o->source);
736 if (!pa_source_output_may_move(o))
737 return -PA_ERR_NOTSUPPORTED;
739 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
744 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
746 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
747 pa_assert_se(origin->n_corked-- >= 1);
749 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
751 pa_source_update_status(o->source);
754 pa_source_output_unref(o);
759 /* Called from main context */
760 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
761 pa_resampler *new_resampler;
763 pa_source_output_assert_ref(o);
764 pa_assert_ctl_context();
765 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
766 pa_assert(!o->source);
767 pa_source_assert_ref(dest);
769 if (!pa_source_output_may_move_to(o, dest))
772 if (o->thread_info.resampler &&
773 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
774 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
776 /* Try to reuse the old resampler if possible */
777 new_resampler = o->thread_info.resampler;
779 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
780 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
781 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
783 /* Okey, we need a new resampler for the new source */
785 if (!(new_resampler = pa_resampler_new(
787 &dest->sample_spec, &dest->channel_map,
788 &o->sample_spec, &o->channel_map,
789 o->requested_resample_method,
790 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
791 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
792 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
793 pa_log_warn("Unsupported resampling operation.");
794 return -PA_ERR_NOTSUPPORTED;
797 new_resampler = NULL;
803 o->save_source = save;
804 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
806 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
807 o->source->n_corked++;
809 /* Replace resampler */
810 if (new_resampler != o->thread_info.resampler) {
811 if (o->thread_info.resampler)
812 pa_resampler_free(o->thread_info.resampler);
813 o->thread_info.resampler = new_resampler;
815 pa_memblockq_free(o->thread_info.delay_memblockq);
817 o->thread_info.delay_memblockq = pa_memblockq_new(
821 pa_frame_size(&o->source->sample_spec),
825 &o->source->silence);
828 pa_source_update_status(dest);
830 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
832 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
834 /* Notify everyone */
835 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
836 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
841 /* Called from main context */
842 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
845 pa_source_output_assert_ref(o);
846 pa_assert_ctl_context();
847 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
848 pa_assert(o->source);
849 pa_source_assert_ref(dest);
851 if (dest == o->source)
854 if (!pa_source_output_may_move_to(o, dest))
855 return -PA_ERR_NOTSUPPORTED;
857 pa_source_output_ref(o);
859 if ((r = pa_source_output_start_move(o)) < 0) {
860 pa_source_output_unref(o);
864 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
865 pa_source_output_unref(o);
869 pa_source_output_unref(o);
874 /* Called from IO thread context */
875 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
876 pa_source_output_assert_ref(o);
877 pa_source_output_assert_io_context(o);
879 if (state == o->thread_info.state)
883 o->state_change(o, state);
885 o->thread_info.state = state;
888 /* Called from IO thread context, except when it is not */
889 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
890 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
891 pa_source_output_assert_ref(o);
895 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
896 pa_usec_t *r = userdata;
898 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
899 r[1] += pa_source_get_latency_within_thread(o->source);
904 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
906 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
907 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
910 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
912 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
915 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
916 pa_usec_t *usec = userdata;
918 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
923 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
924 pa_usec_t *r = userdata;
926 *r = o->thread_info.requested_source_latency;
931 return -PA_ERR_NOTIMPLEMENTED;
934 /* Called from main context */
935 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
936 pa_proplist *pl = NULL;
937 pa_source_output_send_event_hook_data hook_data;
939 pa_source_output_assert_ref(o);
940 pa_assert_ctl_context();
947 data = pl = pa_proplist_new();
949 hook_data.source_output = o;
950 hook_data.data = data;
951 hook_data.event = event;
953 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
956 o->send_event(o, event, data);
960 pa_proplist_free(pl);