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;
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);
130 pa_return_val_if_fail(!(flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND) || pa_source_get_state(data->source) != PA_SOURCE_SUSPENDED, -PA_ERR_BADSTATE);
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 (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
170 pa_log("Failed to create source output: too many outputs per source.");
171 return -PA_ERR_TOOLARGE;
174 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
175 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
176 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
178 if (!(resampler = pa_resampler_new(
180 &data->source->sample_spec, &data->source->channel_map,
181 &data->sample_spec, &data->channel_map,
182 data->resample_method,
183 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
184 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
185 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
186 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
187 pa_log_warn("Unsupported resampling operation.");
188 return -PA_ERR_NOTSUPPORTED;
192 o = pa_msgobject_new(pa_source_output);
193 o->parent.parent.free = source_output_free;
194 o->parent.process_msg = pa_source_output_process_msg;
197 o->state = PA_SOURCE_OUTPUT_INIT;
199 o->proplist = pa_proplist_copy(data->proplist);
200 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
201 o->module = data->module;
202 o->source = data->source;
203 o->client = data->client;
205 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
206 o->requested_resample_method = data->resample_method;
207 o->sample_spec = data->sample_spec;
208 o->channel_map = data->channel_map;
210 o->direct_on_input = data->direct_on_input;
212 o->save_source = data->save_source;
217 o->thread_info.state = o->state;
218 o->thread_info.attached = FALSE;
219 o->thread_info.sample_spec = o->sample_spec;
220 o->thread_info.resampler = resampler;
221 o->thread_info.requested_source_latency = (pa_usec_t) -1;
222 o->thread_info.direct_on_input = o->direct_on_input;
224 o->thread_info.delay_memblockq = pa_memblockq_new(
228 pa_frame_size(&o->source->sample_spec),
232 &o->source->silence);
234 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
235 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
238 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
240 if (o->direct_on_input)
241 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
243 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
245 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
247 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
248 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
250 /* Don't forget to call pa_source_output_put! */
256 /* Called from main context */
257 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
263 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
264 pa_assert_se(o->source->n_corked -- >= 1);
265 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
266 o->source->n_corked++;
269 /* Called from main context */
270 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
273 if (o->state == state)
276 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);
278 update_n_corked(o, state);
281 if (state != PA_SOURCE_OUTPUT_UNLINKED)
282 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
284 pa_source_update_status(o->source);
287 /* Called from main context */
288 void pa_source_output_unlink(pa_source_output*o) {
292 /* See pa_sink_unlink() for a couple of comments how this function
295 pa_source_output_ref(o);
297 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
300 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
302 if (o->direct_on_input)
303 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
305 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
308 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
309 pa_source_output_unref(o);
312 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
314 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
315 o->state = PA_SOURCE_OUTPUT_UNLINKED;
317 if (linked && o->source)
318 if (o->source->asyncmsgq)
319 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
324 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
325 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
329 pa_source_update_status(o->source);
333 pa_source_output_unref(o);
336 /* Called from main context */
337 static void source_output_free(pa_object* mo) {
338 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
341 pa_assert(pa_source_output_refcnt(o) == 0);
343 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
344 pa_source_output_unlink(o);
346 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
348 pa_assert(!o->thread_info.attached);
350 if (o->thread_info.delay_memblockq)
351 pa_memblockq_free(o->thread_info.delay_memblockq);
353 if (o->thread_info.resampler)
354 pa_resampler_free(o->thread_info.resampler);
357 pa_proplist_free(o->proplist);
363 /* Called from main context */
364 void pa_source_output_put(pa_source_output *o) {
365 pa_source_output_state_t state;
366 pa_source_output_assert_ref(o);
368 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
370 /* The following fields must be initialized properly */
374 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
376 update_n_corked(o, state);
379 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
381 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
382 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
384 pa_source_update_status(o->source);
387 /* Called from main context */
388 void pa_source_output_kill(pa_source_output*o) {
389 pa_source_output_assert_ref(o);
390 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
395 /* Called from main context */
396 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
397 pa_usec_t r[2] = { 0, 0 };
399 pa_source_output_assert_ref(o);
400 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
402 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
405 r[0] += o->get_latency(o);
408 *source_latency = r[1];
413 /* Called from thread context */
414 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
416 size_t limit, mbs = 0;
418 pa_source_output_assert_ref(o);
419 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
421 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
423 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
426 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
428 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
429 pa_log_debug("Delay queue overflow!");
430 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
433 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
435 /* Implement the delay queue */
436 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
441 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
443 if (qchunk.length > length)
444 qchunk.length = length;
446 pa_assert(qchunk.length > 0);
448 if (!o->thread_info.resampler)
454 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
456 if (qchunk.length > mbs)
459 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
461 if (rchunk.length > 0)
465 pa_memblock_unref(rchunk.memblock);
468 pa_memblock_unref(qchunk.memblock);
469 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
473 /* Called from thread context */
474 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
475 pa_source_output_assert_ref(o);
477 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
478 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
483 if (o->process_rewind) {
484 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
486 if (o->thread_info.resampler)
487 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
489 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
492 o->process_rewind(o, nbytes);
494 if (o->thread_info.resampler)
495 pa_resampler_reset(o->thread_info.resampler);
498 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
501 /* Called from thread context */
502 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
503 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));
507 if (o->update_max_rewind)
508 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
511 /* Called from thread context */
512 static pa_usec_t fixup_latency(pa_source *s, pa_usec_t usec) {
513 pa_source_assert_ref(s);
515 if (usec == (pa_usec_t) -1)
518 if (s->thread_info.max_latency > 0 && usec > s->thread_info.max_latency)
519 usec = s->thread_info.max_latency;
521 if (s->thread_info.min_latency > 0 && usec < s->thread_info.min_latency)
522 usec = s->thread_info.min_latency;
527 /* Called from thread context */
528 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
529 pa_source_output_assert_ref(o);
531 usec = fixup_latency(o->source, usec);
532 o->thread_info.requested_source_latency = usec;
533 pa_source_invalidate_requested_latency(o->source);
538 /* Called from main context */
539 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
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_SET_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 */
548 o->thread_info.requested_source_latency = usec;
553 /* Called from main context */
554 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
557 pa_source_output_assert_ref(o);
559 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
560 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
562 /* If this source output is not realized yet, we have to touch
563 * the thread info data directly */
564 usec = o->thread_info.requested_source_latency;
569 /* Called from main context */
570 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
571 pa_source_output_assert_ref(o);
572 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
574 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
577 /* Called from main context */
578 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
579 pa_source_output_assert_ref(o);
580 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
581 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
583 if (o->sample_spec.rate == rate)
586 o->sample_spec.rate = rate;
588 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
590 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
594 /* Called from main context */
595 void pa_source_output_set_name(pa_source_output *o, const char *name) {
597 pa_source_output_assert_ref(o);
599 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
602 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
604 if (old && name && !strcmp(old, name))
608 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
610 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
612 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
613 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
614 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
618 /* Called from main thread */
619 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
620 pa_source_output_assert_ref(o);
623 pa_proplist_update(o->proplist, mode, p);
625 if (PA_SINK_IS_LINKED(o->state)) {
626 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
627 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
631 /* Called from main context */
632 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
633 pa_source_output_assert_ref(o);
635 return o->actual_resample_method;
638 /* Called from main context */
639 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
640 pa_source_output_assert_ref(o);
641 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
643 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
646 if (o->direct_on_input)
652 /* Called from main context */
653 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
654 pa_source_output_assert_ref(o);
655 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
656 pa_source_assert_ref(dest);
658 if (dest == o->source)
661 if (!pa_source_output_may_move(o))
664 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
665 pa_log_warn("Failed to move source output: too many outputs per source.");
670 if (!o->may_move_to(o, dest))
676 /* Called from main context */
677 int pa_source_output_start_move(pa_source_output *o) {
681 pa_source_output_assert_ref(o);
682 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
683 pa_assert(o->source);
685 if (!pa_source_output_may_move(o))
686 return -PA_ERR_NOTSUPPORTED;
688 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
693 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
695 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
696 pa_assert_se(origin->n_corked-- >= 1);
698 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
700 pa_source_update_status(o->source);
706 /* Called from main context */
707 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
708 pa_resampler *new_resampler;
710 pa_source_output_assert_ref(o);
711 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
712 pa_assert(!o->source);
713 pa_source_assert_ref(dest);
715 if (!pa_source_output_may_move_to(o, dest))
718 if (o->thread_info.resampler &&
719 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
720 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
722 /* Try to reuse the old resampler if possible */
723 new_resampler = o->thread_info.resampler;
725 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
726 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
727 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
729 /* Okey, we need a new resampler for the new source */
731 if (!(new_resampler = pa_resampler_new(
733 &dest->sample_spec, &dest->channel_map,
734 &o->sample_spec, &o->channel_map,
735 o->requested_resample_method,
736 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
737 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
738 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
739 pa_log_warn("Unsupported resampling operation.");
740 return -PA_ERR_NOTSUPPORTED;
743 new_resampler = NULL;
746 o->save_source = save;
747 pa_idxset_put(o->source->outputs, o, NULL);
749 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
750 o->source->n_corked++;
752 /* Replace resampler */
753 if (new_resampler != o->thread_info.resampler) {
754 if (o->thread_info.resampler)
755 pa_resampler_free(o->thread_info.resampler);
756 o->thread_info.resampler = new_resampler;
758 pa_memblockq_free(o->thread_info.delay_memblockq);
760 o->thread_info.delay_memblockq = pa_memblockq_new(
764 pa_frame_size(&o->source->sample_spec),
768 &o->source->silence);
771 pa_source_update_status(dest);
772 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
774 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
776 /* Notify everyone */
780 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
781 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
786 /* Called from main context */
787 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
790 pa_source_output_assert_ref(o);
791 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
792 pa_assert(o->source);
793 pa_source_assert_ref(dest);
795 if (dest == o->source)
798 if (!pa_source_output_may_move_to(o, dest))
799 return -PA_ERR_NOTSUPPORTED;
801 if ((r = pa_source_output_start_move(o)) < 0)
804 if ((r = pa_source_output_finish_move(o, dest, save)) < 0)
810 /* Called from IO thread context */
811 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
812 pa_source_output_assert_ref(o);
814 if (state == o->thread_info.state)
818 o->state_change(o, state);
820 o->thread_info.state = state;
823 /* Called from IO thread context, except when it is not */
824 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
825 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
826 pa_source_output_assert_ref(o);
830 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
831 pa_usec_t *r = userdata;
832 pa_usec_t source_usec = 0;
834 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
836 if (o->source->parent.process_msg(PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_GET_LATENCY, &source_usec, 0, NULL) >= 0)
842 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
844 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
845 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
848 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
850 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
853 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
854 pa_usec_t *usec = userdata;
856 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
861 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
862 pa_usec_t *r = userdata;
864 *r = o->thread_info.requested_source_latency;
869 return -PA_ERR_NOTIMPLEMENTED;
872 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
873 pa_proplist *pl = NULL;
874 pa_source_output_send_event_hook_data hook_data;
876 pa_source_output_assert_ref(o);
883 data = pl = pa_proplist_new();
885 hook_data.source_output = o;
886 hook_data.data = data;
887 hook_data.event = event;
889 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
892 o->send_event(o, event, data);
896 pa_proplist_free(pl);