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;
97 /* Called from main context */
98 pa_source_output* pa_source_output_new(
100 pa_source_output_new_data *data,
101 pa_source_output_flags_t flags) {
104 pa_resampler *resampler = NULL;
105 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
110 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data) < 0)
113 pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
116 data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
117 data->save_source = FALSE;
120 pa_return_null_if_fail(data->source);
121 pa_return_null_if_fail(pa_source_get_state(data->source) != PA_SOURCE_UNLINKED);
123 pa_return_null_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of);
125 if (!data->sample_spec_is_set)
126 data->sample_spec = data->source->sample_spec;
128 pa_return_null_if_fail(pa_sample_spec_valid(&data->sample_spec));
130 if (!data->channel_map_is_set) {
131 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
132 data->channel_map = data->source->channel_map;
134 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
137 pa_return_null_if_fail(pa_channel_map_valid(&data->channel_map));
138 pa_return_null_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec));
140 if (flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
141 data->sample_spec.format = data->source->sample_spec.format;
143 if (flags & PA_SOURCE_OUTPUT_FIX_RATE)
144 data->sample_spec.rate = data->source->sample_spec.rate;
146 if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
147 data->sample_spec.channels = data->source->sample_spec.channels;
148 data->channel_map = data->source->channel_map;
151 pa_assert(pa_sample_spec_valid(&data->sample_spec));
152 pa_assert(pa_channel_map_valid(&data->channel_map));
154 if (data->resample_method == PA_RESAMPLER_INVALID)
155 data->resample_method = core->resample_method;
157 pa_return_null_if_fail(data->resample_method < PA_RESAMPLER_MAX);
160 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
162 if (pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data) < 0)
165 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
166 pa_log("Failed to create source output: too many outputs per source.");
170 if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
171 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
172 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
174 if (!(resampler = pa_resampler_new(
176 &data->source->sample_spec, &data->source->channel_map,
177 &data->sample_spec, &data->channel_map,
178 data->resample_method,
179 ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
180 ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
181 (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
182 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
183 pa_log_warn("Unsupported resampling operation.");
188 o = pa_msgobject_new(pa_source_output);
189 o->parent.parent.free = source_output_free;
190 o->parent.process_msg = pa_source_output_process_msg;
193 o->state = PA_SOURCE_OUTPUT_INIT;
195 o->proplist = pa_proplist_copy(data->proplist);
196 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
197 o->module = data->module;
198 o->source = data->source;
199 o->client = data->client;
201 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
202 o->requested_resample_method = data->resample_method;
203 o->sample_spec = data->sample_spec;
204 o->channel_map = data->channel_map;
206 o->direct_on_input = data->direct_on_input;
208 o->save_source = data->save_source;
213 o->thread_info.state = o->state;
214 o->thread_info.attached = FALSE;
215 o->thread_info.sample_spec = o->sample_spec;
216 o->thread_info.resampler = resampler;
217 o->thread_info.requested_source_latency = (pa_usec_t) -1;
218 o->thread_info.direct_on_input = o->direct_on_input;
220 o->thread_info.delay_memblockq = pa_memblockq_new(
224 pa_frame_size(&o->source->sample_spec),
228 &o->source->silence);
230 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
231 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
234 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
236 if (o->direct_on_input)
237 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
239 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
241 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
243 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
244 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
246 /* Don't forget to call pa_source_output_put! */
251 /* Called from main context */
252 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
258 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
259 pa_assert_se(o->source->n_corked -- >= 1);
260 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
261 o->source->n_corked++;
264 /* Called from main context */
265 static int source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
268 if (o->state == state)
271 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);
273 update_n_corked(o, state);
276 if (state != PA_SOURCE_OUTPUT_UNLINKED)
277 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
279 pa_source_update_status(o->source);
284 /* Called from main context */
285 void pa_source_output_unlink(pa_source_output*o) {
289 /* See pa_sink_unlink() for a couple of comments how this function
292 pa_source_output_ref(o);
294 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
297 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
299 if (o->direct_on_input)
300 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
302 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
305 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
306 pa_source_output_unref(o);
309 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
311 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
312 o->state = PA_SOURCE_OUTPUT_UNLINKED;
314 if (linked && o->source)
315 if (o->source->asyncmsgq)
316 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
321 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
322 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
326 pa_source_update_status(o->source);
330 pa_source_output_unref(o);
333 /* Called from main context */
334 static void source_output_free(pa_object* mo) {
335 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
338 pa_assert(pa_source_output_refcnt(o) == 0);
340 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
341 pa_source_output_unlink(o);
343 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
345 pa_assert(!o->thread_info.attached);
347 if (o->thread_info.delay_memblockq)
348 pa_memblockq_free(o->thread_info.delay_memblockq);
350 if (o->thread_info.resampler)
351 pa_resampler_free(o->thread_info.resampler);
354 pa_proplist_free(o->proplist);
360 /* Called from main context */
361 void pa_source_output_put(pa_source_output *o) {
362 pa_source_output_state_t state;
363 pa_source_output_assert_ref(o);
365 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
367 /* The following fields must be initialized properly */
371 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
373 update_n_corked(o, state);
376 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
378 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
379 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
381 pa_source_update_status(o->source);
384 /* Called from main context */
385 void pa_source_output_kill(pa_source_output*o) {
386 pa_source_output_assert_ref(o);
387 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
392 /* Called from main context */
393 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
394 pa_usec_t r[2] = { 0, 0 };
396 pa_source_output_assert_ref(o);
397 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
399 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
402 r[0] += o->get_latency(o);
405 *source_latency = r[1];
410 /* Called from thread context */
411 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
413 size_t limit, mbs = 0;
415 pa_source_output_assert_ref(o);
416 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
418 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
420 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
423 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
425 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
426 pa_log_debug("Delay queue overflow!");
427 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
430 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
432 /* Implement the delay queue */
433 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
438 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
440 if (qchunk.length > length)
441 qchunk.length = length;
443 pa_assert(qchunk.length > 0);
445 if (!o->thread_info.resampler)
451 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
453 if (qchunk.length > mbs)
456 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
458 if (rchunk.length > 0)
462 pa_memblock_unref(rchunk.memblock);
465 pa_memblock_unref(qchunk.memblock);
466 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
470 /* Called from thread context */
471 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
472 pa_source_output_assert_ref(o);
474 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
475 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
480 if (o->process_rewind) {
481 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
483 if (o->thread_info.resampler)
484 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
486 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
489 o->process_rewind(o, nbytes);
491 if (o->thread_info.resampler)
492 pa_resampler_reset(o->thread_info.resampler);
495 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
498 /* Called from thread context */
499 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
500 pa_source_output_assert_ref(o);
501 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
502 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
504 if (o->update_max_rewind)
505 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
508 /* Called from thread context */
509 static pa_usec_t fixup_latency(pa_source *s, pa_usec_t usec) {
510 pa_source_assert_ref(s);
512 if (usec == (pa_usec_t) -1)
515 if (s->thread_info.max_latency > 0 && usec > s->thread_info.max_latency)
516 usec = s->thread_info.max_latency;
518 if (s->thread_info.min_latency > 0 && usec < s->thread_info.min_latency)
519 usec = s->thread_info.min_latency;
524 /* Called from thread context */
525 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
526 pa_source_output_assert_ref(o);
528 usec = fixup_latency(o->source, usec);
529 o->thread_info.requested_source_latency = usec;
530 pa_source_invalidate_requested_latency(o->source);
535 /* Called from main context */
536 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
537 pa_source_output_assert_ref(o);
539 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
540 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, we have to touch
543 * the thread info data directly */
545 o->thread_info.requested_source_latency = usec;
550 /* Called from main context */
551 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
554 pa_source_output_assert_ref(o);
556 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
557 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
559 /* If this source output is not realized yet, we have to touch
560 * the thread info data directly */
561 usec = o->thread_info.requested_source_latency;
566 /* Called from main context */
567 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
568 pa_source_output_assert_ref(o);
569 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
571 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
574 /* Called from main context */
575 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
576 pa_source_output_assert_ref(o);
577 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
578 pa_return_val_if_fail(o->thread_info.resampler, -1);
580 if (o->sample_spec.rate == rate)
583 o->sample_spec.rate = rate;
585 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
587 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
591 /* Called from main context */
592 void pa_source_output_set_name(pa_source_output *o, const char *name) {
594 pa_source_output_assert_ref(o);
596 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
599 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
601 if (old && name && !strcmp(old, name))
605 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
607 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
609 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
610 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
611 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
615 /* Called from main thread */
616 pa_bool_t pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
618 pa_source_output_assert_ref(o);
620 pa_proplist_update(o->proplist, mode, p);
622 if (PA_SINK_IS_LINKED(o->state)) {
623 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
624 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
630 /* Called from main context */
631 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
632 pa_source_output_assert_ref(o);
634 return o->actual_resample_method;
637 /* Called from main context */
638 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
639 pa_source_output_assert_ref(o);
640 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
642 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
645 if (o->direct_on_input)
651 /* Called from main context */
652 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
653 pa_source_output_assert_ref(o);
654 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
655 pa_source_assert_ref(dest);
657 if (dest == o->source)
660 if (!pa_source_output_may_move(o))
663 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
664 pa_log_warn("Failed to move source output: too many outputs per source.");
669 if (!o->may_move_to(o, dest))
675 /* Called from main context */
676 int pa_source_output_start_move(pa_source_output *o) {
679 pa_source_output_assert_ref(o);
680 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
681 pa_assert(o->source);
683 if (!pa_source_output_may_move(o))
686 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o) < 0)
691 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
693 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
694 pa_assert_se(origin->n_corked-- >= 1);
696 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
698 pa_source_update_status(o->source);
704 /* Called from main context */
705 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
706 pa_resampler *new_resampler;
708 pa_source_output_assert_ref(o);
709 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
710 pa_assert(!o->source);
711 pa_source_assert_ref(dest);
713 if (!pa_source_output_may_move_to(o, dest))
717 o->save_source = save;
718 pa_idxset_put(o->source->outputs, o, NULL);
720 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
721 o->source->n_corked++;
723 if (o->thread_info.resampler &&
724 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
725 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
727 /* Try to reuse the old resampler if possible */
728 new_resampler = o->thread_info.resampler;
730 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
731 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
732 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
734 /* Okey, we need a new resampler for the new source */
736 if (!(new_resampler = pa_resampler_new(
738 &dest->sample_spec, &dest->channel_map,
739 &o->sample_spec, &o->channel_map,
740 o->requested_resample_method,
741 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
742 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
743 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
744 pa_log_warn("Unsupported resampling operation.");
748 new_resampler = NULL;
750 /* Replace resampler */
751 if (new_resampler != o->thread_info.resampler) {
752 if (o->thread_info.resampler)
753 pa_resampler_free(o->thread_info.resampler);
754 o->thread_info.resampler = new_resampler;
756 pa_memblockq_free(o->thread_info.delay_memblockq);
758 o->thread_info.delay_memblockq = pa_memblockq_new(
762 pa_frame_size(&o->source->sample_spec),
766 &o->source->silence);
769 pa_source_update_status(dest);
770 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
772 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
774 /* Notify everyone */
778 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
779 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
784 /* Called from main context */
785 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
787 pa_source_output_assert_ref(o);
788 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
789 pa_assert(o->source);
790 pa_source_assert_ref(dest);
792 if (dest == o->source)
795 if (!pa_source_output_may_move_to(o, dest))
798 if (pa_source_output_start_move(o) < 0)
801 if (pa_source_output_finish_move(o, dest, save) < 0)
807 /* Called from IO thread context */
808 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
809 pa_source_output_assert_ref(o);
811 if (state == o->thread_info.state)
815 o->state_change(o, state);
817 o->thread_info.state = state;
820 /* Called from IO thread context, except when it is not */
821 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
822 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
823 pa_source_output_assert_ref(o);
827 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
828 pa_usec_t *r = userdata;
829 pa_usec_t source_usec = 0;
831 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
833 if (o->source->parent.process_msg(PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_GET_LATENCY, &source_usec, 0, NULL) >= 0)
839 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
841 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
842 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
845 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
847 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
850 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
851 pa_usec_t *usec = userdata;
853 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
858 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
859 pa_usec_t *r = userdata;
861 *r = o->thread_info.requested_source_latency;