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 PA_DEFINE_PUBLIC_CLASS(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) {
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;
87 o->update_source_fixed_latency = NULL;
91 o->suspend_within_thread = NULL;
94 o->get_latency = NULL;
95 o->state_change = NULL;
96 o->may_move_to = NULL;
100 /* Called from main context */
101 int pa_source_output_new(
102 pa_source_output**_o,
104 pa_source_output_new_data *data,
105 pa_source_output_flags_t flags) {
108 pa_resampler *resampler = NULL;
109 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
115 pa_assert_ctl_context();
118 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
120 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
123 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
126 data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
127 data->save_source = FALSE;
130 pa_return_val_if_fail(data->source, -PA_ERR_NOENTITY);
131 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
132 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
134 if (!data->sample_spec_is_set)
135 data->sample_spec = data->source->sample_spec;
137 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
139 if (!data->channel_map_is_set) {
140 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
141 data->channel_map = data->source->channel_map;
143 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
146 pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
147 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
149 if (flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
150 data->sample_spec.format = data->source->sample_spec.format;
152 if (flags & PA_SOURCE_OUTPUT_FIX_RATE)
153 data->sample_spec.rate = data->source->sample_spec.rate;
155 if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
156 data->sample_spec.channels = data->source->sample_spec.channels;
157 data->channel_map = data->source->channel_map;
160 pa_assert(pa_sample_spec_valid(&data->sample_spec));
161 pa_assert(pa_channel_map_valid(&data->channel_map));
163 if (data->resample_method == PA_RESAMPLER_INVALID)
164 data->resample_method = core->resample_method;
166 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
168 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
171 if ((flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) &&
172 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
173 pa_log("Failed to create source output: source is suspended.");
174 return -PA_ERR_BADSTATE;
177 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
178 pa_log("Failed to create source output: too many outputs per source.");
179 return -PA_ERR_TOOLARGE;
182 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
183 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
184 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
186 if (!(resampler = pa_resampler_new(
188 &data->source->sample_spec, &data->source->channel_map,
189 &data->sample_spec, &data->channel_map,
190 data->resample_method,
191 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
192 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
193 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
194 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
195 pa_log_warn("Unsupported resampling operation.");
196 return -PA_ERR_NOTSUPPORTED;
200 o = pa_msgobject_new(pa_source_output);
201 o->parent.parent.free = source_output_free;
202 o->parent.process_msg = pa_source_output_process_msg;
205 o->state = PA_SOURCE_OUTPUT_INIT;
207 o->proplist = pa_proplist_copy(data->proplist);
208 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
209 o->module = data->module;
210 o->source = data->source;
211 o->client = data->client;
213 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
214 o->requested_resample_method = data->resample_method;
215 o->sample_spec = data->sample_spec;
216 o->channel_map = data->channel_map;
218 o->direct_on_input = data->direct_on_input;
220 o->save_source = data->save_source;
225 o->thread_info.state = o->state;
226 o->thread_info.attached = FALSE;
227 o->thread_info.sample_spec = o->sample_spec;
228 o->thread_info.resampler = resampler;
229 o->thread_info.requested_source_latency = (pa_usec_t) -1;
230 o->thread_info.direct_on_input = o->direct_on_input;
232 o->thread_info.delay_memblockq = pa_memblockq_new(
236 pa_frame_size(&o->source->sample_spec),
240 &o->source->silence);
242 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
243 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
246 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
248 if (o->direct_on_input)
249 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
251 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
253 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
255 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
256 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
258 /* Don't forget to call pa_source_output_put! */
264 /* Called from main context */
265 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
267 pa_assert_ctl_context();
272 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
273 pa_assert_se(o->source->n_corked -- >= 1);
274 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
275 o->source->n_corked++;
278 /* Called from main context */
279 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
281 pa_assert_ctl_context();
283 if (o->state == state)
286 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);
288 update_n_corked(o, state);
291 if (state != PA_SOURCE_OUTPUT_UNLINKED)
292 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
294 pa_source_update_status(o->source);
297 /* Called from main context */
298 void pa_source_output_unlink(pa_source_output*o) {
301 pa_assert_ctl_context();
303 /* See pa_sink_unlink() for a couple of comments how this function
306 pa_source_output_ref(o);
308 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
311 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
313 if (o->direct_on_input)
314 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
316 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
319 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
320 pa_source_output_unref(o);
323 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
325 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
326 o->state = PA_SOURCE_OUTPUT_UNLINKED;
328 if (linked && o->source)
329 if (o->source->asyncmsgq)
330 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
335 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
336 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
340 pa_source_update_status(o->source);
344 pa_core_maybe_vacuum(o->core);
346 pa_source_output_unref(o);
349 /* Called from main context */
350 static void source_output_free(pa_object* mo) {
351 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
354 pa_assert_ctl_context();
355 pa_assert(pa_source_output_refcnt(o) == 0);
357 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
358 pa_source_output_unlink(o);
360 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
362 if (o->thread_info.delay_memblockq)
363 pa_memblockq_free(o->thread_info.delay_memblockq);
365 if (o->thread_info.resampler)
366 pa_resampler_free(o->thread_info.resampler);
369 pa_proplist_free(o->proplist);
375 /* Called from main context */
376 void pa_source_output_put(pa_source_output *o) {
377 pa_source_output_state_t state;
379 pa_source_output_assert_ref(o);
380 pa_assert_ctl_context();
382 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
384 /* The following fields must be initialized properly */
388 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
390 update_n_corked(o, state);
393 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
395 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
396 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
398 pa_source_update_status(o->source);
401 /* Called from main context */
402 void pa_source_output_kill(pa_source_output*o) {
403 pa_source_output_assert_ref(o);
404 pa_assert_ctl_context();
405 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
410 /* Called from main context */
411 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
412 pa_usec_t r[2] = { 0, 0 };
414 pa_source_output_assert_ref(o);
415 pa_assert_ctl_context();
416 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
418 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
421 r[0] += o->get_latency(o);
424 *source_latency = r[1];
429 /* Called from thread context */
430 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
432 size_t limit, mbs = 0;
434 pa_source_output_assert_ref(o);
435 pa_source_output_assert_io_context(o);
436 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
438 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
440 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
443 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
445 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
446 pa_log_debug("Delay queue overflow!");
447 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
450 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
452 if (limit > 0 && o->source->monitor_of) {
456 /* Hmm, check the latency for knowing how much of the buffered
457 * data is actually still unplayed and might hence still
458 * change. This is suboptimal. Ideally we'd have a call like
459 * pa_sink_get_changeable_size() or so that tells us how much
460 * of the queued data is actually still changeable. Hence
463 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
465 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
471 /* Implement the delay queue */
472 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
477 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
479 if (qchunk.length > length)
480 qchunk.length = length;
482 pa_assert(qchunk.length > 0);
484 if (!o->thread_info.resampler)
490 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
492 if (qchunk.length > mbs)
495 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
497 if (rchunk.length > 0)
501 pa_memblock_unref(rchunk.memblock);
504 pa_memblock_unref(qchunk.memblock);
505 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
509 /* Called from thread context */
510 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
512 pa_source_output_assert_ref(o);
513 pa_source_output_assert_io_context(o);
514 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
515 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
520 if (o->process_rewind) {
521 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
523 if (o->thread_info.resampler)
524 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
526 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
529 o->process_rewind(o, nbytes);
531 if (o->thread_info.resampler)
532 pa_resampler_reset(o->thread_info.resampler);
535 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
538 /* Called from thread context */
539 size_t pa_source_output_get_max_rewind(pa_source_output *o) {
540 pa_source_output_assert_ref(o);
541 pa_source_output_assert_io_context(o);
543 return o->thread_info.resampler ? pa_resampler_request(o->thread_info.resampler, o->source->thread_info.max_rewind) : o->source->thread_info.max_rewind;
546 /* Called from thread context */
547 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
548 pa_source_output_assert_ref(o);
549 pa_source_output_assert_io_context(o);
550 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
551 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
553 if (o->update_max_rewind)
554 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
557 /* Called from thread context */
558 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
559 pa_source_output_assert_ref(o);
560 pa_source_output_assert_io_context(o);
562 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
563 usec = o->source->thread_info.fixed_latency;
565 if (usec != (pa_usec_t) -1)
566 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
568 o->thread_info.requested_source_latency = usec;
569 pa_source_invalidate_requested_latency(o->source, TRUE);
574 /* Called from main context */
575 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
576 pa_source_output_assert_ref(o);
577 pa_assert_ctl_context();
579 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
580 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
584 /* If this source output is not realized yet or is being moved, we
585 * have to touch the thread info data directly */
588 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
589 usec = pa_source_get_fixed_latency(o->source);
591 if (usec != (pa_usec_t) -1) {
592 pa_usec_t min_latency, max_latency;
593 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
594 usec = PA_CLAMP(usec, min_latency, max_latency);
598 o->thread_info.requested_source_latency = usec;
603 /* Called from main context */
604 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
605 pa_source_output_assert_ref(o);
606 pa_assert_ctl_context();
608 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
610 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
614 /* If this source output is not realized yet or is being moved, we
615 * have to touch the thread info data directly */
617 return o->thread_info.requested_source_latency;
620 /* Called from main context */
621 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
622 pa_source_output_assert_ref(o);
623 pa_assert_ctl_context();
624 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
626 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
629 /* Called from main context */
630 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
631 pa_source_output_assert_ref(o);
632 pa_assert_ctl_context();
633 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
634 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
636 if (o->sample_spec.rate == rate)
639 o->sample_spec.rate = rate;
641 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
643 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
647 /* Called from main context */
648 void pa_source_output_set_name(pa_source_output *o, const char *name) {
650 pa_assert_ctl_context();
651 pa_source_output_assert_ref(o);
653 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
656 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
658 if (old && name && !strcmp(old, name))
662 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
664 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
666 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
667 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
668 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
672 /* Called from main thread */
673 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
674 pa_source_output_assert_ref(o);
675 pa_assert_ctl_context();
678 pa_proplist_update(o->proplist, mode, p);
680 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
681 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
682 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
686 /* Called from main context */
687 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
688 pa_source_output_assert_ref(o);
689 pa_assert_ctl_context();
691 return o->actual_resample_method;
694 /* Called from main context */
695 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
696 pa_source_output_assert_ref(o);
697 pa_assert_ctl_context();
698 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
700 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
703 if (o->direct_on_input)
709 /* Called from main context */
710 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
711 pa_source_output_assert_ref(o);
712 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
713 pa_source_assert_ref(dest);
715 if (dest == o->source)
718 if (!pa_source_output_may_move(o))
721 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
722 pa_log_warn("Failed to move source output: too many outputs per source.");
727 if (!o->may_move_to(o, dest))
733 /* Called from main context */
734 int pa_source_output_start_move(pa_source_output *o) {
738 pa_source_output_assert_ref(o);
739 pa_assert_ctl_context();
740 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
741 pa_assert(o->source);
743 if (!pa_source_output_may_move(o))
744 return -PA_ERR_NOTSUPPORTED;
746 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
751 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
753 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
754 pa_assert_se(origin->n_corked-- >= 1);
756 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
758 pa_source_update_status(o->source);
761 pa_source_output_unref(o);
766 /* Called from main context */
767 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
768 pa_resampler *new_resampler;
770 pa_source_output_assert_ref(o);
771 pa_assert_ctl_context();
772 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
773 pa_assert(!o->source);
774 pa_source_assert_ref(dest);
776 if (!pa_source_output_may_move_to(o, dest))
779 if (o->thread_info.resampler &&
780 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
781 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
783 /* Try to reuse the old resampler if possible */
784 new_resampler = o->thread_info.resampler;
786 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
787 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
788 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
790 /* Okey, we need a new resampler for the new source */
792 if (!(new_resampler = pa_resampler_new(
794 &dest->sample_spec, &dest->channel_map,
795 &o->sample_spec, &o->channel_map,
796 o->requested_resample_method,
797 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
798 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
799 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
800 pa_log_warn("Unsupported resampling operation.");
801 return -PA_ERR_NOTSUPPORTED;
804 new_resampler = NULL;
810 o->save_source = save;
811 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
813 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
814 o->source->n_corked++;
816 /* Replace resampler */
817 if (new_resampler != o->thread_info.resampler) {
818 if (o->thread_info.resampler)
819 pa_resampler_free(o->thread_info.resampler);
820 o->thread_info.resampler = new_resampler;
822 pa_memblockq_free(o->thread_info.delay_memblockq);
824 o->thread_info.delay_memblockq = pa_memblockq_new(
828 pa_frame_size(&o->source->sample_spec),
832 &o->source->silence);
835 pa_source_update_status(dest);
837 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
839 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
841 /* Notify everyone */
842 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
843 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
848 /* Called from main context */
849 void pa_source_output_fail_move(pa_source_output *o) {
851 pa_source_output_assert_ref(o);
852 pa_assert_ctl_context();
853 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
854 pa_assert(!o->source);
856 /* Check if someone wants this source output? */
857 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP)
863 pa_source_output_kill(o);
866 /* Called from main context */
867 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
870 pa_source_output_assert_ref(o);
871 pa_assert_ctl_context();
872 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
873 pa_assert(o->source);
874 pa_source_assert_ref(dest);
876 if (dest == o->source)
879 if (!pa_source_output_may_move_to(o, dest))
880 return -PA_ERR_NOTSUPPORTED;
882 pa_source_output_ref(o);
884 if ((r = pa_source_output_start_move(o)) < 0) {
885 pa_source_output_unref(o);
889 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
890 pa_source_output_fail_move(o);
891 pa_source_output_unref(o);
895 pa_source_output_unref(o);
900 /* Called from IO thread context */
901 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
902 pa_source_output_assert_ref(o);
903 pa_source_output_assert_io_context(o);
905 if (state == o->thread_info.state)
909 o->state_change(o, state);
911 o->thread_info.state = state;
914 /* Called from IO thread context, except when it is not */
915 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
916 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
917 pa_source_output_assert_ref(o);
921 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
922 pa_usec_t *r = userdata;
924 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
925 r[1] += pa_source_get_latency_within_thread(o->source);
930 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
932 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
933 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
936 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
938 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
941 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
942 pa_usec_t *usec = userdata;
944 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
949 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
950 pa_usec_t *r = userdata;
952 *r = o->thread_info.requested_source_latency;
957 return -PA_ERR_NOTIMPLEMENTED;
960 /* Called from main context */
961 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
962 pa_proplist *pl = NULL;
963 pa_source_output_send_event_hook_data hook_data;
965 pa_source_output_assert_ref(o);
966 pa_assert_ctl_context();
973 data = pl = pa_proplist_new();
975 hook_data.source_output = o;
976 hook_data.data = data;
977 hook_data.event = event;
979 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
982 o->send_event(o, event, data);
986 pa_proplist_free(pl);