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) {
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_core_maybe_vacuum(o->core);
340 pa_source_output_unref(o);
343 /* Called from main context */
344 static void source_output_free(pa_object* mo) {
345 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
348 pa_assert(pa_source_output_refcnt(o) == 0);
350 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
351 pa_source_output_unlink(o);
353 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
355 pa_assert(!o->thread_info.attached);
357 if (o->thread_info.delay_memblockq)
358 pa_memblockq_free(o->thread_info.delay_memblockq);
360 if (o->thread_info.resampler)
361 pa_resampler_free(o->thread_info.resampler);
364 pa_proplist_free(o->proplist);
370 /* Called from main context */
371 void pa_source_output_put(pa_source_output *o) {
372 pa_source_output_state_t state;
373 pa_source_output_assert_ref(o);
375 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
377 /* The following fields must be initialized properly */
381 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
383 update_n_corked(o, state);
386 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
388 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
389 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
391 pa_source_update_status(o->source);
394 /* Called from main context */
395 void pa_source_output_kill(pa_source_output*o) {
396 pa_source_output_assert_ref(o);
397 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
402 /* Called from main context */
403 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
404 pa_usec_t r[2] = { 0, 0 };
406 pa_source_output_assert_ref(o);
407 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
409 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
412 r[0] += o->get_latency(o);
415 *source_latency = r[1];
420 /* Called from thread context */
421 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
423 size_t limit, mbs = 0;
425 pa_source_output_assert_ref(o);
426 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
428 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
430 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
433 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
435 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
436 pa_log_debug("Delay queue overflow!");
437 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
440 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
442 /* Implement the delay queue */
443 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
448 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
450 if (qchunk.length > length)
451 qchunk.length = length;
453 pa_assert(qchunk.length > 0);
455 if (!o->thread_info.resampler)
461 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
463 if (qchunk.length > mbs)
466 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
468 if (rchunk.length > 0)
472 pa_memblock_unref(rchunk.memblock);
475 pa_memblock_unref(qchunk.memblock);
476 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
480 /* Called from thread context */
481 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
482 pa_source_output_assert_ref(o);
484 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
485 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
490 if (o->process_rewind) {
491 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
493 if (o->thread_info.resampler)
494 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
496 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
499 o->process_rewind(o, nbytes);
501 if (o->thread_info.resampler)
502 pa_resampler_reset(o->thread_info.resampler);
505 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
508 /* Called from thread context */
509 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
510 pa_source_output_assert_ref(o);
511 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
512 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
514 if (o->update_max_rewind)
515 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
518 /* Called from thread context */
519 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
520 pa_source_output_assert_ref(o);
522 if (usec != (pa_usec_t) -1)
523 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
525 o->thread_info.requested_source_latency = usec;
526 pa_source_invalidate_requested_latency(o->source);
531 /* Called from main context */
532 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
533 pa_usec_t min_latency, max_latency;
535 pa_source_output_assert_ref(o);
537 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
538 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
542 /* If this source output is not realized yet or is being moved, we
543 * have to touch the thread info data directly */
546 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
548 if (usec != (pa_usec_t) -1)
549 usec = PA_CLAMP(usec, min_latency, max_latency);
552 o->thread_info.requested_source_latency = usec;
557 /* Called from main context */
558 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
559 pa_source_output_assert_ref(o);
561 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
563 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 or is being moved, we
568 * have to touch the thread info data directly */
570 return o->thread_info.requested_source_latency;
573 /* Called from main context */
574 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
575 pa_source_output_assert_ref(o);
576 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
578 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
581 /* Called from main context */
582 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
583 pa_source_output_assert_ref(o);
584 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
585 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
587 if (o->sample_spec.rate == rate)
590 o->sample_spec.rate = rate;
592 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
594 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
598 /* Called from main context */
599 void pa_source_output_set_name(pa_source_output *o, const char *name) {
601 pa_source_output_assert_ref(o);
603 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
606 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
608 if (old && name && !strcmp(old, name))
612 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
614 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
616 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
617 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
618 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
622 /* Called from main thread */
623 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
624 pa_source_output_assert_ref(o);
627 pa_proplist_update(o->proplist, mode, p);
629 if (PA_SINK_IS_LINKED(o->state)) {
630 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
631 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
635 /* Called from main context */
636 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
637 pa_source_output_assert_ref(o);
639 return o->actual_resample_method;
642 /* Called from main context */
643 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
644 pa_source_output_assert_ref(o);
645 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
647 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
650 if (o->direct_on_input)
656 /* Called from main context */
657 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
658 pa_source_output_assert_ref(o);
659 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
660 pa_source_assert_ref(dest);
662 if (dest == o->source)
665 if (!pa_source_output_may_move(o))
668 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
669 pa_log_warn("Failed to move source output: too many outputs per source.");
674 if (!o->may_move_to(o, dest))
680 /* Called from main context */
681 int pa_source_output_start_move(pa_source_output *o) {
685 pa_source_output_assert_ref(o);
686 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
687 pa_assert(o->source);
689 if (!pa_source_output_may_move(o))
690 return -PA_ERR_NOTSUPPORTED;
692 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
697 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
699 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
700 pa_assert_se(origin->n_corked-- >= 1);
702 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
704 pa_source_update_status(o->source);
710 /* Called from main context */
711 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
712 pa_resampler *new_resampler;
714 pa_source_output_assert_ref(o);
715 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
716 pa_assert(!o->source);
717 pa_source_assert_ref(dest);
719 if (!pa_source_output_may_move_to(o, dest))
722 if (o->thread_info.resampler &&
723 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
724 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
726 /* Try to reuse the old resampler if possible */
727 new_resampler = o->thread_info.resampler;
729 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
730 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
731 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
733 /* Okey, we need a new resampler for the new source */
735 if (!(new_resampler = pa_resampler_new(
737 &dest->sample_spec, &dest->channel_map,
738 &o->sample_spec, &o->channel_map,
739 o->requested_resample_method,
740 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
741 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
742 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
743 pa_log_warn("Unsupported resampling operation.");
744 return -PA_ERR_NOTSUPPORTED;
747 new_resampler = NULL;
753 o->save_source = save;
754 pa_idxset_put(o->source->outputs, o, NULL);
756 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
757 o->source->n_corked++;
759 /* Replace resampler */
760 if (new_resampler != o->thread_info.resampler) {
761 if (o->thread_info.resampler)
762 pa_resampler_free(o->thread_info.resampler);
763 o->thread_info.resampler = new_resampler;
765 pa_memblockq_free(o->thread_info.delay_memblockq);
767 o->thread_info.delay_memblockq = pa_memblockq_new(
771 pa_frame_size(&o->source->sample_spec),
775 &o->source->silence);
778 pa_source_update_status(dest);
780 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
782 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
784 /* 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);