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>
33 #include <pulsecore/sample-util.h>
34 #include <pulsecore/core-subscribe.h>
35 #include <pulsecore/log.h>
36 #include <pulsecore/namereg.h>
37 #include <pulsecore/core-util.h>
39 #include "source-output.h"
41 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
43 static PA_DEFINE_CHECK_TYPE(pa_source_output, pa_msgobject);
45 static void source_output_free(pa_object* mo);
47 pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data) {
50 memset(data, 0, sizeof(*data));
51 data->resample_method = PA_RESAMPLER_INVALID;
52 data->proplist = pa_proplist_new();
57 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec) {
60 if ((data->sample_spec_is_set = !!spec))
61 data->sample_spec = *spec;
64 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map) {
67 if ((data->channel_map_is_set = !!map))
68 data->channel_map = *map;
71 void pa_source_output_new_data_done(pa_source_output_new_data *data) {
74 pa_proplist_free(data->proplist);
77 /* Called from main context */
78 static void reset_callbacks(pa_source_output *o) {
82 o->process_rewind = NULL;
83 o->update_max_rewind = NULL;
84 o->update_source_requested_latency = NULL;
85 o->update_source_latency_range = NULL;
91 o->get_latency = NULL;
92 o->state_change = NULL;
93 o->may_move_to = NULL;
96 /* Called from main context */
97 pa_source_output* pa_source_output_new(
99 pa_source_output_new_data *data,
100 pa_source_output_flags_t flags) {
103 pa_resampler *resampler = NULL;
104 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
109 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data) < 0)
112 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
115 data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
117 pa_return_null_if_fail(data->source);
118 pa_return_null_if_fail(pa_source_get_state(data->source) != PA_SOURCE_UNLINKED);
120 pa_return_null_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of);
122 if (!data->sample_spec_is_set)
123 data->sample_spec = data->source->sample_spec;
125 pa_return_null_if_fail(pa_sample_spec_valid(&data->sample_spec));
127 if (!data->channel_map_is_set) {
128 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
129 data->channel_map = data->source->channel_map;
131 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
134 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
135 pa_return_null_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec));
137 if (flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
138 data->sample_spec.format = data->source->sample_spec.format;
140 if (flags & PA_SOURCE_OUTPUT_FIX_RATE)
141 data->sample_spec.rate = data->source->sample_spec.rate;
143 if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
144 data->sample_spec.channels = data->source->sample_spec.channels;
145 data->channel_map = data->source->channel_map;
148 pa_assert(pa_sample_spec_valid(&data->sample_spec));
149 pa_assert(pa_channel_map_valid(&data->channel_map));
151 if (data->resample_method == PA_RESAMPLER_INVALID)
152 data->resample_method = core->resample_method;
154 pa_return_null_if_fail(data->resample_method < PA_RESAMPLER_MAX);
156 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data) < 0)
159 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
160 pa_log("Failed to create source output: too many outputs per source.");
164 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
165 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
166 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
168 if (!(resampler = pa_resampler_new(
170 &data->source->sample_spec, &data->source->channel_map,
171 &data->sample_spec, &data->channel_map,
172 data->resample_method,
173 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
174 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
175 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
176 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
177 pa_log_warn("Unsupported resampling operation.");
181 data->resample_method = pa_resampler_get_method(resampler);
184 o = pa_msgobject_new(pa_source_output);
185 o->parent.parent.free = source_output_free;
186 o->parent.process_msg = pa_source_output_process_msg;
189 o->state = PA_SOURCE_OUTPUT_INIT;
191 o->proplist = pa_proplist_copy(data->proplist);
192 o->driver = pa_xstrdup(data->driver);
193 o->module = data->module;
194 o->source = data->source;
195 o->client = data->client;
197 o->resample_method = data->resample_method;
198 o->sample_spec = data->sample_spec;
199 o->channel_map = data->channel_map;
201 o->direct_on_input = data->direct_on_input;
206 o->thread_info.state = o->state;
207 o->thread_info.attached = FALSE;
208 o->thread_info.sample_spec = o->sample_spec;
209 o->thread_info.resampler = resampler;
210 o->thread_info.requested_source_latency = (pa_usec_t) -1;
211 o->thread_info.direct_on_input = o->direct_on_input;
213 o->thread_info.delay_memblockq = pa_memblockq_new(
217 pa_frame_size(&o->source->sample_spec),
221 &o->source->silence);
223 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
224 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
227 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
229 if (o->direct_on_input)
230 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
232 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
234 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
236 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
237 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
239 /* Don't forget to call pa_source_output_put! */
244 /* Called from main context */
245 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
248 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
249 pa_assert_se(o->source->n_corked -- >= 1);
250 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
251 o->source->n_corked++;
255 /* Called from main context */
256 static int source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
259 if (o->state == state)
262 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);
264 update_n_corked(o, state);
267 if (state != PA_SOURCE_OUTPUT_UNLINKED)
268 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
270 pa_source_update_status(o->source);
275 /* Called from main context */
276 void pa_source_output_unlink(pa_source_output*o) {
280 /* See pa_sink_unlink() for a couple of comments how this function
283 pa_source_output_ref(o);
285 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
288 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
290 if (o->direct_on_input)
291 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
292 pa_idxset_remove_by_data(o->source->core->source_outputs, o, NULL);
293 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
294 pa_source_output_unref(o);
297 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
299 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
300 o->state = PA_SOURCE_OUTPUT_UNLINKED;
303 if (o->source->asyncmsgq)
304 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
309 pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
310 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
313 pa_source_update_status(o->source);
316 pa_source_output_unref(o);
319 /* Called from main context */
320 static void source_output_free(pa_object* mo) {
321 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
324 pa_assert(pa_source_output_refcnt(o) == 0);
326 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
327 pa_source_output_unlink(o);
329 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
331 pa_assert(!o->thread_info.attached);
333 if (o->thread_info.delay_memblockq)
334 pa_memblockq_free(o->thread_info.delay_memblockq);
336 if (o->thread_info.resampler)
337 pa_resampler_free(o->thread_info.resampler);
340 pa_proplist_free(o->proplist);
346 /* Called from main context */
347 void pa_source_output_put(pa_source_output *o) {
348 pa_source_output_state_t state;
349 pa_source_output_assert_ref(o);
351 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
353 /* The following fields must be initialized properly */
357 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
359 update_n_corked(o, state);
362 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
364 pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
365 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
367 pa_source_update_status(o->source);
370 /* Called from main context */
371 void pa_source_output_kill(pa_source_output*o) {
372 pa_source_output_assert_ref(o);
373 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
378 /* Called from main context */
379 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
380 pa_usec_t r[2] = { 0, 0 };
382 pa_source_output_assert_ref(o);
383 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
385 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
388 r[0] += o->get_latency(o);
391 *source_latency = r[1];
396 /* Called from thread context */
397 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
399 size_t limit, mbs = 0;
401 pa_source_output_assert_ref(o);
402 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
404 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
406 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
409 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
411 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
412 pa_log_debug("Delay queue overflow!");
413 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
416 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
418 /* Implement the delay queue */
419 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
424 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
426 if (qchunk.length > length)
427 qchunk.length = length;
429 pa_assert(qchunk.length > 0);
431 if (!o->thread_info.resampler)
437 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
439 if (qchunk.length > mbs)
442 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
444 if (rchunk.length > 0)
448 pa_memblock_unref(rchunk.memblock);
451 pa_memblock_unref(qchunk.memblock);
452 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
456 /* Called from thread context */
457 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
458 pa_source_output_assert_ref(o);
460 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
461 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
466 if (o->process_rewind) {
467 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
469 if (o->thread_info.resampler)
470 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
472 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
475 o->process_rewind(o, nbytes);
477 if (o->thread_info.resampler)
478 pa_resampler_reset(o->thread_info.resampler);
481 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
484 /* Called from thread context */
485 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
486 pa_source_output_assert_ref(o);
487 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
488 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
490 if (o->update_max_rewind)
491 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
494 /* Called from thread context */
495 static pa_usec_t fixup_latency(pa_source *s, pa_usec_t usec) {
496 pa_source_assert_ref(s);
498 if (usec == (pa_usec_t) -1)
501 if (s->thread_info.max_latency > 0 && usec > s->thread_info.max_latency)
502 usec = s->thread_info.max_latency;
504 if (s->thread_info.min_latency > 0 && usec < s->thread_info.min_latency)
505 usec = s->thread_info.min_latency;
510 /* Called from thread context */
511 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
512 pa_source_output_assert_ref(o);
514 usec = fixup_latency(o->source, usec);
515 o->thread_info.requested_source_latency = usec;
516 pa_source_invalidate_requested_latency(o->source);
521 /* Called from main context */
522 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
523 pa_source_output_assert_ref(o);
525 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
526 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
528 /* If this source output is not realized yet, we have to touch
529 * the thread info data directly */
531 o->thread_info.requested_source_latency = usec;
536 /* Called from main context */
537 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
540 pa_source_output_assert_ref(o);
542 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
543 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
545 /* If this source output is not realized yet, we have to touch
546 * the thread info data directly */
547 usec = o->thread_info.requested_source_latency;
552 /* Called from main context */
553 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
554 pa_source_output_assert_ref(o);
555 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
557 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
560 /* Called from main context */
561 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
562 pa_source_output_assert_ref(o);
563 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
564 pa_return_val_if_fail(o->thread_info.resampler, -1);
566 if (o->sample_spec.rate == rate)
569 o->sample_spec.rate = rate;
571 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
573 pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
577 /* Called from main context */
578 void pa_source_output_set_name(pa_source_output *o, const char *name) {
580 pa_source_output_assert_ref(o);
582 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
585 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
587 if (old && name && !strcmp(old, name))
591 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
593 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
595 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
596 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
597 pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
601 /* Called from main thread */
602 pa_bool_t pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
604 pa_source_output_assert_ref(o);
606 pa_proplist_update(o->proplist, mode, p);
608 if (PA_SINK_IS_LINKED(o->state)) {
609 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
610 pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
616 /* Called from main context */
617 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
618 pa_source_output_assert_ref(o);
620 return o->resample_method;
623 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
624 pa_source_output_assert_ref(o);
625 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
626 pa_source_assert_ref(dest);
628 if (dest == o->source)
631 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
634 if (o->direct_on_input)
637 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
638 pa_log_warn("Failed to move source output: too many outputs per source.");
643 if (!o->may_move_to(o, dest))
649 /* Called from main context */
650 int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
652 pa_resampler *new_resampler;
653 pa_source_output_move_hook_data hook_data;
655 pa_source_output_assert_ref(o);
656 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
657 pa_source_assert_ref(dest);
664 if (!pa_source_output_may_move_to(o, dest))
667 if (o->thread_info.resampler &&
668 pa_sample_spec_equal(&origin->sample_spec, &dest->sample_spec) &&
669 pa_channel_map_equal(&origin->channel_map, &dest->channel_map))
671 /* Try to reuse the old resampler if possible */
672 new_resampler = o->thread_info.resampler;
674 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
675 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
676 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
678 /* Okey, we need a new resampler for the new source */
680 if (!(new_resampler = pa_resampler_new(
682 &dest->sample_spec, &dest->channel_map,
683 &o->sample_spec, &o->channel_map,
685 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
686 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
687 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
688 pa_log_warn("Unsupported resampling operation.");
692 new_resampler = NULL;
694 hook_data.source_output = o;
695 hook_data.destination = dest;
696 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE], &hook_data);
698 /* Okey, let's move it */
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_idxset_remove_by_data(origin->outputs, o, NULL);
702 pa_idxset_put(dest->outputs, o, NULL);
705 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED) {
706 pa_assert_se(origin->n_corked-- >= 1);
710 /* Replace resampler */
711 if (new_resampler != o->thread_info.resampler) {
712 if (o->thread_info.resampler)
713 pa_resampler_free(o->thread_info.resampler);
714 o->thread_info.resampler = new_resampler;
716 pa_memblockq_free(o->thread_info.delay_memblockq);
718 o->thread_info.delay_memblockq = pa_memblockq_new(
722 pa_frame_size(&o->source->sample_spec),
726 &o->source->silence);
729 pa_source_update_status(origin);
730 pa_source_update_status(dest);
732 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
737 pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_POST], o);
739 pa_log_debug("Successfully moved source output %i from %s to %s.", o->index, origin->name, dest->name);
741 /* Notify everyone */
742 pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
747 /* Called from IO thread context */
748 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
749 pa_source_output_assert_ref(o);
751 if (state == o->thread_info.state)
755 o->state_change(o, state);
757 o->thread_info.state = state;
760 /* Called from IO thread context, except when it is not */
761 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
762 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
763 pa_source_output_assert_ref(o);
767 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
768 pa_usec_t *r = userdata;
769 pa_usec_t source_usec = 0;
771 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
773 if (o->source->parent.process_msg(PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_GET_LATENCY, &source_usec, 0, NULL) >= 0)
779 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
781 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
782 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
785 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
787 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
790 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
791 pa_usec_t *usec = userdata;
793 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
798 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
799 pa_usec_t *r = userdata;
801 *r = o->thread_info.requested_source_latency;