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;
97 /* Called from main context */
98 int pa_source_output_new(
101 pa_source_output_new_data *data,
102 pa_source_output_flags_t flags) {
105 pa_resampler *resampler = NULL;
106 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
114 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
116 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
119 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
122 data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
123 data->save_source = FALSE;
126 pa_return_val_if_fail(data->source, -PA_ERR_NOENTITY);
127 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
128 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
129 pa_return_val_if_fail(!(flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND) || pa_source_get_state(data->source) != PA_SOURCE_SUSPENDED, -PA_ERR_BADSTATE);
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 (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
169 pa_log("Failed to create source output: too many outputs per source.");
170 return -PA_ERR_TOOLARGE;
173 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
174 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
175 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
177 if (!(resampler = pa_resampler_new(
179 &data->source->sample_spec, &data->source->channel_map,
180 &data->sample_spec, &data->channel_map,
181 data->resample_method,
182 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
183 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
184 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
185 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
186 pa_log_warn("Unsupported resampling operation.");
187 return -PA_ERR_NOTSUPPORTED;
191 o = pa_msgobject_new(pa_source_output);
192 o->parent.parent.free = source_output_free;
193 o->parent.process_msg = pa_source_output_process_msg;
196 o->state = PA_SOURCE_OUTPUT_INIT;
198 o->proplist = pa_proplist_copy(data->proplist);
199 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
200 o->module = data->module;
201 o->source = data->source;
202 o->client = data->client;
204 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
205 o->requested_resample_method = data->resample_method;
206 o->sample_spec = data->sample_spec;
207 o->channel_map = data->channel_map;
209 o->direct_on_input = data->direct_on_input;
211 o->save_source = data->save_source;
216 o->thread_info.state = o->state;
217 o->thread_info.attached = FALSE;
218 o->thread_info.sample_spec = o->sample_spec;
219 o->thread_info.resampler = resampler;
220 o->thread_info.requested_source_latency = (pa_usec_t) -1;
221 o->thread_info.direct_on_input = o->direct_on_input;
223 o->thread_info.delay_memblockq = pa_memblockq_new(
227 pa_frame_size(&o->source->sample_spec),
231 &o->source->silence);
233 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
234 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
237 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
239 if (o->direct_on_input)
240 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
242 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
244 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
246 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
247 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
249 /* Don't forget to call pa_source_output_put! */
255 /* Called from main context */
256 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
262 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
263 pa_assert_se(o->source->n_corked -- >= 1);
264 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
265 o->source->n_corked++;
268 /* Called from main context */
269 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
272 if (o->state == state)
275 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);
277 update_n_corked(o, state);
280 if (state != PA_SOURCE_OUTPUT_UNLINKED)
281 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
283 pa_source_update_status(o->source);
286 /* Called from main context */
287 void pa_source_output_unlink(pa_source_output*o) {
291 /* See pa_sink_unlink() for a couple of comments how this function
294 pa_source_output_ref(o);
296 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
299 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
301 if (o->direct_on_input)
302 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
304 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
307 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
308 pa_source_output_unref(o);
311 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
313 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
314 o->state = PA_SOURCE_OUTPUT_UNLINKED;
316 if (linked && o->source)
317 if (o->source->asyncmsgq)
318 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
323 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
324 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
328 pa_source_update_status(o->source);
332 pa_source_output_unref(o);
335 /* Called from main context */
336 static void source_output_free(pa_object* mo) {
337 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
340 pa_assert(pa_source_output_refcnt(o) == 0);
342 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
343 pa_source_output_unlink(o);
345 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
347 pa_assert(!o->thread_info.attached);
349 if (o->thread_info.delay_memblockq)
350 pa_memblockq_free(o->thread_info.delay_memblockq);
352 if (o->thread_info.resampler)
353 pa_resampler_free(o->thread_info.resampler);
356 pa_proplist_free(o->proplist);
362 /* Called from main context */
363 void pa_source_output_put(pa_source_output *o) {
364 pa_source_output_state_t state;
365 pa_source_output_assert_ref(o);
367 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
369 /* The following fields must be initialized properly */
373 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
375 update_n_corked(o, state);
378 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
380 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
381 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
383 pa_source_update_status(o->source);
386 /* Called from main context */
387 void pa_source_output_kill(pa_source_output*o) {
388 pa_source_output_assert_ref(o);
389 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
394 /* Called from main context */
395 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
396 pa_usec_t r[2] = { 0, 0 };
398 pa_source_output_assert_ref(o);
399 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
401 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
404 r[0] += o->get_latency(o);
407 *source_latency = r[1];
412 /* Called from thread context */
413 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
415 size_t limit, mbs = 0;
417 pa_source_output_assert_ref(o);
418 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
420 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
422 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
425 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
427 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
428 pa_log_debug("Delay queue overflow!");
429 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
432 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
434 /* Implement the delay queue */
435 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
440 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
442 if (qchunk.length > length)
443 qchunk.length = length;
445 pa_assert(qchunk.length > 0);
447 if (!o->thread_info.resampler)
453 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
455 if (qchunk.length > mbs)
458 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
460 if (rchunk.length > 0)
464 pa_memblock_unref(rchunk.memblock);
467 pa_memblock_unref(qchunk.memblock);
468 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
472 /* Called from thread context */
473 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
474 pa_source_output_assert_ref(o);
476 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
477 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
482 if (o->process_rewind) {
483 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
485 if (o->thread_info.resampler)
486 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
488 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
491 o->process_rewind(o, nbytes);
493 if (o->thread_info.resampler)
494 pa_resampler_reset(o->thread_info.resampler);
497 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
500 /* Called from thread context */
501 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
502 pa_source_output_assert_ref(o);
503 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
504 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
506 if (o->update_max_rewind)
507 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
510 /* Called from thread context */
511 static pa_usec_t fixup_latency(pa_source *s, pa_usec_t usec) {
512 pa_source_assert_ref(s);
514 if (usec == (pa_usec_t) -1)
517 if (s->thread_info.max_latency > 0 && usec > s->thread_info.max_latency)
518 usec = s->thread_info.max_latency;
520 if (s->thread_info.min_latency > 0 && usec < s->thread_info.min_latency)
521 usec = s->thread_info.min_latency;
526 /* Called from thread context */
527 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
528 pa_source_output_assert_ref(o);
530 usec = fixup_latency(o->source, usec);
531 o->thread_info.requested_source_latency = usec;
532 pa_source_invalidate_requested_latency(o->source);
537 /* Called from main context */
538 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
539 pa_source_output_assert_ref(o);
541 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
542 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
544 /* If this source output is not realized yet, we have to touch
545 * the thread info data directly */
547 o->thread_info.requested_source_latency = usec;
552 /* Called from main context */
553 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
556 pa_source_output_assert_ref(o);
558 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
559 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
561 /* If this source output is not realized yet, we have to touch
562 * the thread info data directly */
563 usec = o->thread_info.requested_source_latency;
568 /* Called from main context */
569 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
570 pa_source_output_assert_ref(o);
571 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
573 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
576 /* Called from main context */
577 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
578 pa_source_output_assert_ref(o);
579 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
580 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
582 if (o->sample_spec.rate == rate)
585 o->sample_spec.rate = rate;
587 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
589 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
593 /* Called from main context */
594 void pa_source_output_set_name(pa_source_output *o, const char *name) {
596 pa_source_output_assert_ref(o);
598 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
601 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
603 if (old && name && !strcmp(old, name))
607 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
609 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
611 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
612 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
613 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
617 /* Called from main thread */
618 pa_bool_t pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
620 pa_source_output_assert_ref(o);
622 pa_proplist_update(o->proplist, mode, p);
624 if (PA_SINK_IS_LINKED(o->state)) {
625 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
626 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
632 /* Called from main context */
633 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
634 pa_source_output_assert_ref(o);
636 return o->actual_resample_method;
639 /* Called from main context */
640 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
641 pa_source_output_assert_ref(o);
642 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
644 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
647 if (o->direct_on_input)
653 /* Called from main context */
654 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
655 pa_source_output_assert_ref(o);
656 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
657 pa_source_assert_ref(dest);
659 if (dest == o->source)
662 if (!pa_source_output_may_move(o))
665 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
666 pa_log_warn("Failed to move source output: too many outputs per source.");
671 if (!o->may_move_to(o, dest))
677 /* Called from main context */
678 int pa_source_output_start_move(pa_source_output *o) {
682 pa_source_output_assert_ref(o);
683 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
684 pa_assert(o->source);
686 if (!pa_source_output_may_move(o))
687 return -PA_ERR_NOTSUPPORTED;
689 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
694 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
696 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
697 pa_assert_se(origin->n_corked-- >= 1);
699 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
701 pa_source_update_status(o->source);
707 /* Called from main context */
708 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
709 pa_resampler *new_resampler;
711 pa_source_output_assert_ref(o);
712 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
713 pa_assert(!o->source);
714 pa_source_assert_ref(dest);
716 if (!pa_source_output_may_move_to(o, dest))
719 if (o->thread_info.resampler &&
720 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
721 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
723 /* Try to reuse the old resampler if possible */
724 new_resampler = o->thread_info.resampler;
726 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
727 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
728 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
730 /* Okey, we need a new resampler for the new source */
732 if (!(new_resampler = pa_resampler_new(
734 &dest->sample_spec, &dest->channel_map,
735 &o->sample_spec, &o->channel_map,
736 o->requested_resample_method,
737 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
738 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
739 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
740 pa_log_warn("Unsupported resampling operation.");
741 return -PA_ERR_NOTSUPPORTED;
744 new_resampler = NULL;
747 o->save_source = save;
748 pa_idxset_put(o->source->outputs, o, NULL);
750 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
751 o->source->n_corked++;
753 /* Replace resampler */
754 if (new_resampler != o->thread_info.resampler) {
755 if (o->thread_info.resampler)
756 pa_resampler_free(o->thread_info.resampler);
757 o->thread_info.resampler = new_resampler;
759 pa_memblockq_free(o->thread_info.delay_memblockq);
761 o->thread_info.delay_memblockq = pa_memblockq_new(
765 pa_frame_size(&o->source->sample_spec),
769 &o->source->silence);
772 pa_source_update_status(dest);
773 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
775 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
777 /* Notify everyone */
781 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
782 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
787 /* Called from main context */
788 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
791 pa_source_output_assert_ref(o);
792 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
793 pa_assert(o->source);
794 pa_source_assert_ref(dest);
796 if (dest == o->source)
799 if (!pa_source_output_may_move_to(o, dest))
800 return -PA_ERR_NOTSUPPORTED;
802 if ((r = pa_source_output_start_move(o)) < 0)
805 if ((r = pa_source_output_finish_move(o, dest, save)) < 0)
811 /* Called from IO thread context */
812 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
813 pa_source_output_assert_ref(o);
815 if (state == o->thread_info.state)
819 o->state_change(o, state);
821 o->thread_info.state = state;
824 /* Called from IO thread context, except when it is not */
825 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
826 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
827 pa_source_output_assert_ref(o);
831 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
832 pa_usec_t *r = userdata;
833 pa_usec_t source_usec = 0;
835 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
837 if (o->source->parent.process_msg(PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_GET_LATENCY, &source_usec, 0, NULL) >= 0)
843 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
845 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
846 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
849 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
851 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
854 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
855 pa_usec_t *usec = userdata;
857 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
862 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
863 pa_usec_t *r = userdata;
865 *r = o->thread_info.requested_source_latency;
870 return -PA_ERR_NOTIMPLEMENTED;