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;
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];
116 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
118 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
121 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
124 data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
125 data->save_source = FALSE;
128 pa_return_val_if_fail(data->source, -PA_ERR_NOENTITY);
129 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
130 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
132 if (!data->sample_spec_is_set)
133 data->sample_spec = data->source->sample_spec;
135 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
137 if (!data->channel_map_is_set) {
138 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
139 data->channel_map = data->source->channel_map;
141 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
144 pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
145 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
147 if (flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
148 data->sample_spec.format = data->source->sample_spec.format;
150 if (flags & PA_SOURCE_OUTPUT_FIX_RATE)
151 data->sample_spec.rate = data->source->sample_spec.rate;
153 if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
154 data->sample_spec.channels = data->source->sample_spec.channels;
155 data->channel_map = data->source->channel_map;
158 pa_assert(pa_sample_spec_valid(&data->sample_spec));
159 pa_assert(pa_channel_map_valid(&data->channel_map));
161 if (data->resample_method == PA_RESAMPLER_INVALID)
162 data->resample_method = core->resample_method;
164 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
166 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
169 if ((flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND) &&
170 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
171 pa_log("Failed to create source output: source is suspended.");
172 return -PA_ERR_BADSTATE;
175 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
176 pa_log("Failed to create source output: too many outputs per source.");
177 return -PA_ERR_TOOLARGE;
180 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
181 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
182 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
184 if (!(resampler = pa_resampler_new(
186 &data->source->sample_spec, &data->source->channel_map,
187 &data->sample_spec, &data->channel_map,
188 data->resample_method,
189 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
190 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
191 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
192 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
193 pa_log_warn("Unsupported resampling operation.");
194 return -PA_ERR_NOTSUPPORTED;
198 o = pa_msgobject_new(pa_source_output);
199 o->parent.parent.free = source_output_free;
200 o->parent.process_msg = pa_source_output_process_msg;
203 o->state = PA_SOURCE_OUTPUT_INIT;
205 o->proplist = pa_proplist_copy(data->proplist);
206 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
207 o->module = data->module;
208 o->source = data->source;
209 o->client = data->client;
211 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
212 o->requested_resample_method = data->resample_method;
213 o->sample_spec = data->sample_spec;
214 o->channel_map = data->channel_map;
216 o->direct_on_input = data->direct_on_input;
218 o->save_source = data->save_source;
223 o->thread_info.state = o->state;
224 o->thread_info.attached = FALSE;
225 o->thread_info.sample_spec = o->sample_spec;
226 o->thread_info.resampler = resampler;
227 o->thread_info.requested_source_latency = (pa_usec_t) -1;
228 o->thread_info.direct_on_input = o->direct_on_input;
230 o->thread_info.delay_memblockq = pa_memblockq_new(
234 pa_frame_size(&o->source->sample_spec),
238 &o->source->silence);
240 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
241 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
244 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
246 if (o->direct_on_input)
247 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
249 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
251 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
253 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
254 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
256 /* Don't forget to call pa_source_output_put! */
262 /* Called from main context */
263 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
269 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
270 pa_assert_se(o->source->n_corked -- >= 1);
271 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
272 o->source->n_corked++;
275 /* Called from main context */
276 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
279 if (o->state == state)
282 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);
284 update_n_corked(o, state);
287 if (state != PA_SOURCE_OUTPUT_UNLINKED)
288 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
290 pa_source_update_status(o->source);
293 /* Called from main context */
294 void pa_source_output_unlink(pa_source_output*o) {
298 /* See pa_sink_unlink() for a couple of comments how this function
301 pa_source_output_ref(o);
303 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
306 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
308 if (o->direct_on_input)
309 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
311 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
314 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
315 pa_source_output_unref(o);
318 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
320 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
321 o->state = PA_SOURCE_OUTPUT_UNLINKED;
323 if (linked && o->source)
324 if (o->source->asyncmsgq)
325 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
330 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
331 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
335 pa_source_update_status(o->source);
339 pa_core_maybe_vacuum(o->core);
341 pa_source_output_unref(o);
344 /* Called from main context */
345 static void source_output_free(pa_object* mo) {
346 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
349 pa_assert(pa_source_output_refcnt(o) == 0);
351 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
352 pa_source_output_unlink(o);
354 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
356 pa_assert(!o->thread_info.attached);
358 if (o->thread_info.delay_memblockq)
359 pa_memblockq_free(o->thread_info.delay_memblockq);
361 if (o->thread_info.resampler)
362 pa_resampler_free(o->thread_info.resampler);
365 pa_proplist_free(o->proplist);
371 /* Called from main context */
372 void pa_source_output_put(pa_source_output *o) {
373 pa_source_output_state_t state;
374 pa_source_output_assert_ref(o);
376 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
378 /* The following fields must be initialized properly */
382 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
384 update_n_corked(o, state);
387 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
389 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
390 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
392 pa_source_update_status(o->source);
395 /* Called from main context */
396 void pa_source_output_kill(pa_source_output*o) {
397 pa_source_output_assert_ref(o);
398 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
403 /* Called from main context */
404 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
405 pa_usec_t r[2] = { 0, 0 };
407 pa_source_output_assert_ref(o);
408 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
410 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
413 r[0] += o->get_latency(o);
416 *source_latency = r[1];
421 /* Called from thread context */
422 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
424 size_t limit, mbs = 0;
426 pa_source_output_assert_ref(o);
427 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
429 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
431 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
434 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
436 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
437 pa_log_debug("Delay queue overflow!");
438 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
441 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
443 if (limit > 0 && o->source->monitor_of) {
447 /* Hmm, check the latency for knowing how much of the buffered
448 * data is actually still unplayed and might hence still
449 * change. This is suboptimal. Ideally we'd have a call like
450 * pa_sink_get_changeable_size() or so that tells us how much
451 * of the queued data is actually still changeable. Hence
454 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
456 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
462 /* Implement the delay queue */
463 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
468 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
470 if (qchunk.length > length)
471 qchunk.length = length;
473 pa_assert(qchunk.length > 0);
475 if (!o->thread_info.resampler)
481 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
483 if (qchunk.length > mbs)
486 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
488 if (rchunk.length > 0)
492 pa_memblock_unref(rchunk.memblock);
495 pa_memblock_unref(qchunk.memblock);
496 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
500 /* Called from thread context */
501 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
502 pa_source_output_assert_ref(o);
504 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
505 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
510 if (o->process_rewind) {
511 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
513 if (o->thread_info.resampler)
514 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
516 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
519 o->process_rewind(o, nbytes);
521 if (o->thread_info.resampler)
522 pa_resampler_reset(o->thread_info.resampler);
525 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
528 /* Called from thread context */
529 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
530 pa_source_output_assert_ref(o);
531 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
532 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
534 if (o->update_max_rewind)
535 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
538 /* Called from thread context */
539 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
540 pa_source_output_assert_ref(o);
542 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
543 usec = o->source->fixed_latency;
545 if (usec != (pa_usec_t) -1)
546 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
548 o->thread_info.requested_source_latency = usec;
549 pa_source_invalidate_requested_latency(o->source);
554 /* Called from main context */
555 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
556 pa_source_output_assert_ref(o);
558 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
559 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
563 /* If this source output is not realized yet or is being moved, we
564 * have to touch the thread info data directly */
567 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
568 usec = o->source->fixed_latency;
570 if (usec != (pa_usec_t) -1) {
571 pa_usec_t min_latency, max_latency;
572 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
573 usec = PA_CLAMP(usec, min_latency, max_latency);
577 o->thread_info.requested_source_latency = usec;
582 /* Called from main context */
583 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
584 pa_source_output_assert_ref(o);
586 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
588 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
592 /* If this source output is not realized yet or is being moved, we
593 * have to touch the thread info data directly */
595 return o->thread_info.requested_source_latency;
598 /* Called from main context */
599 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
600 pa_source_output_assert_ref(o);
601 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
603 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
606 /* Called from main context */
607 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
608 pa_source_output_assert_ref(o);
609 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
610 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
612 if (o->sample_spec.rate == rate)
615 o->sample_spec.rate = rate;
617 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
619 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
623 /* Called from main context */
624 void pa_source_output_set_name(pa_source_output *o, const char *name) {
626 pa_source_output_assert_ref(o);
628 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
631 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
633 if (old && name && !strcmp(old, name))
637 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
639 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
641 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
642 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
643 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
647 /* Called from main thread */
648 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
649 pa_source_output_assert_ref(o);
652 pa_proplist_update(o->proplist, mode, p);
654 if (PA_SINK_IS_LINKED(o->state)) {
655 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
656 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
660 /* Called from main context */
661 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
662 pa_source_output_assert_ref(o);
664 return o->actual_resample_method;
667 /* Called from main context */
668 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
669 pa_source_output_assert_ref(o);
670 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
672 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
675 if (o->direct_on_input)
681 /* Called from main context */
682 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
683 pa_source_output_assert_ref(o);
684 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
685 pa_source_assert_ref(dest);
687 if (dest == o->source)
690 if (!pa_source_output_may_move(o))
693 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
694 pa_log_warn("Failed to move source output: too many outputs per source.");
699 if (!o->may_move_to(o, dest))
705 /* Called from main context */
706 int pa_source_output_start_move(pa_source_output *o) {
710 pa_source_output_assert_ref(o);
711 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
712 pa_assert(o->source);
714 if (!pa_source_output_may_move(o))
715 return -PA_ERR_NOTSUPPORTED;
717 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
722 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
724 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
725 pa_assert_se(origin->n_corked-- >= 1);
727 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
729 pa_source_update_status(o->source);
732 pa_source_output_unref(o);
737 /* Called from main context */
738 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
739 pa_resampler *new_resampler;
741 pa_source_output_assert_ref(o);
742 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
743 pa_assert(!o->source);
744 pa_source_assert_ref(dest);
746 if (!pa_source_output_may_move_to(o, dest))
749 if (o->thread_info.resampler &&
750 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
751 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
753 /* Try to reuse the old resampler if possible */
754 new_resampler = o->thread_info.resampler;
756 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
757 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
758 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
760 /* Okey, we need a new resampler for the new source */
762 if (!(new_resampler = pa_resampler_new(
764 &dest->sample_spec, &dest->channel_map,
765 &o->sample_spec, &o->channel_map,
766 o->requested_resample_method,
767 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
768 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
769 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
770 pa_log_warn("Unsupported resampling operation.");
771 return -PA_ERR_NOTSUPPORTED;
774 new_resampler = NULL;
780 o->save_source = save;
781 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
783 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
784 o->source->n_corked++;
786 /* Replace resampler */
787 if (new_resampler != o->thread_info.resampler) {
788 if (o->thread_info.resampler)
789 pa_resampler_free(o->thread_info.resampler);
790 o->thread_info.resampler = new_resampler;
792 pa_memblockq_free(o->thread_info.delay_memblockq);
794 o->thread_info.delay_memblockq = pa_memblockq_new(
798 pa_frame_size(&o->source->sample_spec),
802 &o->source->silence);
805 pa_source_update_status(dest);
807 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
809 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
811 /* Notify everyone */
812 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
813 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
818 /* Called from main context */
819 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
822 pa_source_output_assert_ref(o);
823 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
824 pa_assert(o->source);
825 pa_source_assert_ref(dest);
827 if (dest == o->source)
830 if (!pa_source_output_may_move_to(o, dest))
831 return -PA_ERR_NOTSUPPORTED;
833 pa_source_output_ref(o);
835 if ((r = pa_source_output_start_move(o)) < 0) {
836 pa_source_output_unref(o);
840 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
841 pa_source_output_unref(o);
845 pa_source_output_unref(o);
850 /* Called from IO thread context */
851 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
852 pa_source_output_assert_ref(o);
854 if (state == o->thread_info.state)
858 o->state_change(o, state);
860 o->thread_info.state = state;
863 /* Called from IO thread context, except when it is not */
864 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
865 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
866 pa_source_output_assert_ref(o);
870 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
871 pa_usec_t *r = userdata;
873 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
874 r[1] += pa_source_get_latency_within_thread(o->source);
879 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
881 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
882 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
885 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
887 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
890 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
891 pa_usec_t *usec = userdata;
893 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
898 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
899 pa_usec_t *r = userdata;
901 *r = o->thread_info.requested_source_latency;
906 return -PA_ERR_NOTIMPLEMENTED;
909 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
910 pa_proplist *pl = NULL;
911 pa_source_output_send_event_hook_data hook_data;
913 pa_source_output_assert_ref(o);
920 data = pl = pa_proplist_new();
922 hook_data.source_output = o;
923 hook_data.data = data;
924 hook_data.event = event;
926 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
929 o->send_event(o, event, data);
933 pa_proplist_free(pl);