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>
33 #include <pulse/internal.h>
35 #include <pulsecore/sample-util.h>
36 #include <pulsecore/core-subscribe.h>
37 #include <pulsecore/log.h>
38 #include <pulsecore/namereg.h>
39 #include <pulsecore/core-util.h>
41 #include "source-output.h"
43 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
45 PA_DEFINE_PUBLIC_CLASS(pa_source_output, pa_msgobject);
47 static void source_output_free(pa_object* mo);
48 static void set_real_ratio(pa_source_output *o, const pa_cvolume *v);
50 pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data) {
54 data->resample_method = PA_RESAMPLER_INVALID;
55 data->proplist = pa_proplist_new();
56 data->volume_writable = TRUE;
61 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec) {
64 if ((data->sample_spec_is_set = !!spec))
65 data->sample_spec = *spec;
68 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map) {
71 if ((data->channel_map_is_set = !!map))
72 data->channel_map = *map;
75 pa_bool_t pa_source_output_new_data_is_passthrough(pa_source_output_new_data *data) {
78 if (PA_LIKELY(data->format) && PA_UNLIKELY(!pa_format_info_is_pcm(data->format)))
81 if (PA_UNLIKELY(data->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
87 void pa_source_output_new_data_set_volume(pa_source_output_new_data *data, const pa_cvolume *volume) {
89 pa_assert(data->volume_writable);
91 if ((data->volume_is_set = !!volume))
92 data->volume = *volume;
95 void pa_source_output_new_data_apply_volume_factor(pa_source_output_new_data *data, const pa_cvolume *volume_factor) {
97 pa_assert(volume_factor);
99 if (data->volume_factor_is_set)
100 pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
102 data->volume_factor_is_set = TRUE;
103 data->volume_factor = *volume_factor;
107 void pa_source_output_new_data_apply_volume_factor_source(pa_source_output_new_data *data, const pa_cvolume *volume_factor) {
109 pa_assert(volume_factor);
111 if (data->volume_factor_source_is_set)
112 pa_sw_cvolume_multiply(&data->volume_factor_source, &data->volume_factor_source, volume_factor);
114 data->volume_factor_source_is_set = TRUE;
115 data->volume_factor_source = *volume_factor;
119 void pa_source_output_new_data_set_muted(pa_source_output_new_data *data, pa_bool_t mute) {
122 data->muted_is_set = TRUE;
123 data->muted = !!mute;
126 pa_bool_t pa_source_output_new_data_set_source(pa_source_output_new_data *data, pa_source *s, pa_bool_t save) {
127 pa_bool_t ret = TRUE;
128 pa_idxset *formats = NULL;
133 if (!data->req_formats) {
134 /* We're not working with the extended API */
136 data->save_source = save;
138 /* Extended API: let's see if this source supports the formats the client would like */
139 formats = pa_source_check_formats(s, data->req_formats);
141 if (formats && !pa_idxset_isempty(formats)) {
142 /* Source supports at least one of the requested formats */
144 data->save_source = save;
145 if (data->nego_formats)
146 pa_idxset_free(data->nego_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
147 data->nego_formats = formats;
149 /* Source doesn't support any of the formats requested by the client */
151 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
159 pa_bool_t pa_source_output_new_data_set_formats(pa_source_output_new_data *data, pa_idxset *formats) {
163 if (data->req_formats)
164 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
166 data->req_formats = formats;
169 /* Trigger format negotiation */
170 return pa_source_output_new_data_set_source(data, data->source, data->save_source);
176 void pa_source_output_new_data_done(pa_source_output_new_data *data) {
179 if (data->req_formats)
180 pa_idxset_free(data->req_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
182 if (data->nego_formats)
183 pa_idxset_free(data->nego_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
186 pa_format_info_free(data->format);
188 pa_proplist_free(data->proplist);
191 /* Called from main context */
192 static void reset_callbacks(pa_source_output *o) {
196 o->process_rewind = NULL;
197 o->update_max_rewind = NULL;
198 o->update_source_requested_latency = NULL;
199 o->update_source_latency_range = NULL;
200 o->update_source_fixed_latency = NULL;
204 o->suspend_within_thread = NULL;
207 o->get_latency = NULL;
208 o->state_change = NULL;
209 o->may_move_to = NULL;
210 o->send_event = NULL;
211 o->volume_changed = NULL;
212 o->mute_changed = NULL;
215 /* Called from main context */
216 int pa_source_output_new(
217 pa_source_output**_o,
219 pa_source_output_new_data *data) {
222 pa_resampler *resampler = NULL;
223 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
224 pa_channel_map original_cm;
233 pa_assert_ctl_context();
236 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
238 if (data->destination_source && (data->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
239 data->volume_writable = FALSE;
241 if (!data->req_formats) {
242 /* From this point on, we want to work only with formats, and get back
243 * to using the sample spec and channel map after all decisions w.r.t.
244 * routing are complete. */
245 pa_idxset *tmp = pa_idxset_new(NULL, NULL);
246 pa_format_info *f = pa_format_info_from_sample_spec(&data->sample_spec,
247 data->channel_map_is_set ? &data->channel_map : NULL);
248 pa_idxset_put(tmp, f, NULL);
249 pa_source_output_new_data_set_formats(data, tmp);
252 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
255 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
258 pa_source *source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
259 pa_return_val_if_fail(source, -PA_ERR_NOENTITY);
260 pa_source_output_new_data_set_source(data, source, FALSE);
263 /* Routing's done, we have a source. Now let's fix the format and set up the
266 /* If something didn't pick a format for us, pick the top-most format since
267 * we assume this is sorted in priority order */
268 if (!data->format && data->nego_formats && !pa_idxset_isempty(data->nego_formats))
269 data->format = pa_format_info_copy(pa_idxset_first(data->nego_formats, NULL));
271 pa_return_val_if_fail(data->format, -PA_ERR_NOTSUPPORTED);
273 /* Now populate the sample spec and format according to the final
274 * format that we've negotiated */
275 if (PA_LIKELY(data->format->encoding == PA_ENCODING_PCM)) {
276 pa_return_val_if_fail(pa_format_info_to_sample_spec(data->format, &ss, &map), -PA_ERR_INVALID);
277 pa_source_output_new_data_set_sample_spec(data, &ss);
278 if (pa_channel_map_valid(&map))
279 pa_source_output_new_data_set_channel_map(data, &map);
281 pa_return_val_if_fail(pa_format_info_to_sample_spec_fake(data->format, &ss), -PA_ERR_INVALID);
282 pa_source_output_new_data_set_sample_spec(data, &ss);
285 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
286 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
288 if (!data->sample_spec_is_set)
289 data->sample_spec = data->source->sample_spec;
291 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
293 if (!data->channel_map_is_set) {
294 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
295 data->channel_map = data->source->channel_map;
297 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
300 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
302 /* Don't restore (or save) stream volume for passthrough streams and
303 * prevent attenuation/gain */
304 if (pa_source_output_new_data_is_passthrough(data)) {
305 data->volume_is_set = TRUE;
306 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
307 data->volume_is_absolute = TRUE;
308 data->save_volume = FALSE;
311 if (!data->volume_is_set) {
312 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
313 data->volume_is_absolute = FALSE;
314 data->save_volume = FALSE;
317 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
319 if (!data->volume_factor_is_set)
320 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
322 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
324 if (!data->volume_factor_source_is_set)
325 pa_cvolume_reset(&data->volume_factor_source, data->source->sample_spec.channels);
327 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_source, &data->source->sample_spec), -PA_ERR_INVALID);
329 if (!data->muted_is_set)
332 if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
333 data->sample_spec.format = data->source->sample_spec.format;
335 if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE)
336 data->sample_spec.rate = data->source->sample_spec.rate;
338 original_cm = data->channel_map;
340 if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
341 data->sample_spec.channels = data->source->sample_spec.channels;
342 data->channel_map = data->source->channel_map;
345 pa_assert(pa_sample_spec_valid(&data->sample_spec));
346 pa_assert(pa_channel_map_valid(&data->channel_map));
348 /* Due to the fixing of the sample spec the volume might not match anymore */
349 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
351 if (!(data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
352 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec)){
353 /* try to change source rate. This is done before the FIXATE hook since
354 module-suspend-on-idle can resume a source */
356 pa_log_info("Trying to change sample rate");
357 if (pa_source_update_rate(data->source, data->sample_spec.rate, pa_source_output_new_data_is_passthrough(data)) == TRUE)
358 pa_log_info("Rate changed to %u kHz",
359 data->source->sample_spec.rate);
361 pa_log_info("Resampling enabled to %u kHz", data->source->sample_spec.rate);
364 if (data->resample_method == PA_RESAMPLER_INVALID)
365 data->resample_method = core->resample_method;
367 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
369 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
372 if ((data->flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) &&
373 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
374 pa_log("Failed to create source output: source is suspended.");
375 return -PA_ERR_BADSTATE;
378 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
379 pa_log("Failed to create source output: too many outputs per source.");
380 return -PA_ERR_TOOLARGE;
383 if ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
384 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
385 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
387 if (!pa_source_output_new_data_is_passthrough(data)) /* no resampler for passthrough content */
388 if (!(resampler = pa_resampler_new(
390 &data->source->sample_spec, &data->source->channel_map,
391 &data->sample_spec, &data->channel_map,
392 data->resample_method,
393 ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
394 ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
395 (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
396 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
397 pa_log_warn("Unsupported resampling operation.");
398 return -PA_ERR_NOTSUPPORTED;
402 o = pa_msgobject_new(pa_source_output);
403 o->parent.parent.free = source_output_free;
404 o->parent.process_msg = pa_source_output_process_msg;
407 o->state = PA_SOURCE_OUTPUT_INIT;
408 o->flags = data->flags;
409 o->proplist = pa_proplist_copy(data->proplist);
410 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
411 o->module = data->module;
412 o->source = data->source;
413 o->destination_source = data->destination_source;
414 o->client = data->client;
416 o->requested_resample_method = data->resample_method;
417 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
418 o->sample_spec = data->sample_spec;
419 o->channel_map = data->channel_map;
420 o->format = pa_format_info_copy(data->format);
422 if (!data->volume_is_absolute && pa_source_flat_volume_enabled(o->source)) {
425 /* When the 'absolute' bool is not set then we'll treat the volume
426 * as relative to the source volume even in flat volume mode */
427 remapped = data->source->reference_volume;
428 pa_cvolume_remap(&remapped, &data->source->channel_map, &data->channel_map);
429 pa_sw_cvolume_multiply(&o->volume, &data->volume, &remapped);
431 o->volume = data->volume;
433 o->volume_factor = data->volume_factor;
434 o->volume_factor_source = data->volume_factor_source;
435 o->real_ratio = o->reference_ratio = data->volume;
436 pa_cvolume_reset(&o->soft_volume, o->sample_spec.channels);
437 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
438 o->volume_writable = data->volume_writable;
439 o->save_volume = data->save_volume;
440 o->save_source = data->save_source;
441 o->save_muted = data->save_muted;
443 o->muted = data->muted;
445 o->direct_on_input = data->direct_on_input;
450 o->thread_info.state = o->state;
451 o->thread_info.attached = FALSE;
452 o->thread_info.sample_spec = o->sample_spec;
453 o->thread_info.resampler = resampler;
454 o->thread_info.soft_volume = o->soft_volume;
455 o->thread_info.muted = o->muted;
456 o->thread_info.requested_source_latency = (pa_usec_t) -1;
457 o->thread_info.direct_on_input = o->direct_on_input;
459 o->thread_info.delay_memblockq = pa_memblockq_new(
460 "source output delay_memblockq",
464 &o->source->sample_spec,
468 &o->source->silence);
470 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
471 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
474 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
476 if (o->direct_on_input)
477 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
479 pt = pa_proplist_to_string_sep(o->proplist, "\n ");
480 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
482 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
484 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
485 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map),
489 /* Don't forget to call pa_source_output_put! */
495 /* Called from main context */
496 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
498 pa_assert_ctl_context();
503 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
504 pa_assert_se(o->source->n_corked -- >= 1);
505 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
506 o->source->n_corked++;
509 /* Called from main context */
510 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
513 pa_assert_ctl_context();
515 if (o->state == state)
518 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);
520 update_n_corked(o, state);
523 if (state != PA_SOURCE_OUTPUT_UNLINKED) {
524 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
526 if (PA_SOURCE_OUTPUT_IS_LINKED(state))
527 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
530 pa_source_update_status(o->source);
533 /* Called from main context */
534 void pa_source_output_unlink(pa_source_output*o) {
537 pa_assert_ctl_context();
539 /* See pa_sink_unlink() for a couple of comments how this function
542 pa_source_output_ref(o);
544 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
547 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
549 if (o->direct_on_input)
550 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
552 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
555 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
556 pa_source_output_unref(o);
559 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
561 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
562 o->state = PA_SOURCE_OUTPUT_UNLINKED;
564 if (linked && o->source) {
565 if (pa_source_output_is_passthrough(o))
566 pa_source_leave_passthrough(o->source);
568 /* We might need to update the source's volume if we are in flat volume mode. */
569 if (pa_source_flat_volume_enabled(o->source))
570 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
572 if (o->source->asyncmsgq)
573 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
579 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
580 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
584 pa_source_update_status(o->source);
588 pa_core_maybe_vacuum(o->core);
590 pa_source_output_unref(o);
593 /* Called from main context */
594 static void source_output_free(pa_object* mo) {
595 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
598 pa_assert_ctl_context();
599 pa_assert(pa_source_output_refcnt(o) == 0);
601 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
602 pa_source_output_unlink(o);
604 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
606 if (o->thread_info.delay_memblockq)
607 pa_memblockq_free(o->thread_info.delay_memblockq);
609 if (o->thread_info.resampler)
610 pa_resampler_free(o->thread_info.resampler);
613 pa_format_info_free(o->format);
616 pa_proplist_free(o->proplist);
622 /* Called from main context */
623 void pa_source_output_put(pa_source_output *o) {
624 pa_source_output_state_t state;
626 pa_source_output_assert_ref(o);
627 pa_assert_ctl_context();
629 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
631 /* The following fields must be initialized properly */
635 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
637 update_n_corked(o, state);
640 /* We might need to update the source's volume if we are in flat volume mode. */
641 if (pa_source_flat_volume_enabled(o->source))
642 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
644 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
645 pa_assert(pa_cvolume_is_norm(&o->volume));
646 pa_assert(pa_cvolume_is_norm(&o->reference_ratio));
649 set_real_ratio(o, &o->volume);
652 if (pa_source_output_is_passthrough(o))
653 pa_source_enter_passthrough(o->source);
655 o->thread_info.soft_volume = o->soft_volume;
656 o->thread_info.muted = o->muted;
658 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
660 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
661 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
663 pa_source_update_status(o->source);
666 /* Called from main context */
667 void pa_source_output_kill(pa_source_output*o) {
668 pa_source_output_assert_ref(o);
669 pa_assert_ctl_context();
670 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
675 /* Called from main context */
676 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
677 pa_usec_t r[2] = { 0, 0 };
679 pa_source_output_assert_ref(o);
680 pa_assert_ctl_context();
681 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
683 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
686 r[0] += o->get_latency(o);
689 *source_latency = r[1];
694 /* Called from thread context */
695 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
696 pa_bool_t need_volume_factor_source;
697 pa_bool_t volume_is_norm;
699 size_t limit, mbs = 0;
701 pa_source_output_assert_ref(o);
702 pa_source_output_assert_io_context(o);
703 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
705 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
707 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
710 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
712 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
713 pa_log_debug("Delay queue overflow!");
714 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
717 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
719 volume_is_norm = pa_cvolume_is_norm(&o->thread_info.soft_volume) && !o->thread_info.muted;
720 need_volume_factor_source = !pa_cvolume_is_norm(&o->volume_factor_source);
722 if (limit > 0 && o->source->monitor_of) {
726 /* Hmm, check the latency for knowing how much of the buffered
727 * data is actually still unplayed and might hence still
728 * change. This is suboptimal. Ideally we'd have a call like
729 * pa_sink_get_changeable_size() or so that tells us how much
730 * of the queued data is actually still changeable. Hence
733 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
735 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
741 /* Implement the delay queue */
742 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
744 pa_bool_t nvfs = need_volume_factor_source;
748 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
750 if (qchunk.length > length)
751 qchunk.length = length;
753 pa_assert(qchunk.length > 0);
755 /* It might be necessary to adjust the volume here */
756 if (!volume_is_norm) {
757 pa_memchunk_make_writable(&qchunk, 0);
759 if (o->thread_info.muted) {
760 pa_silence_memchunk(&qchunk, &o->source->sample_spec);
763 } else if (!o->thread_info.resampler && nvfs) {
766 /* If we don't need a resampler we can merge the
767 * post and the pre volume adjustment into one */
769 pa_sw_cvolume_multiply(&v, &o->thread_info.soft_volume, &o->volume_factor_source);
770 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &v);
774 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &o->thread_info.soft_volume);
777 if (!o->thread_info.resampler) {
779 pa_memchunk_make_writable(&qchunk, 0);
780 pa_volume_memchunk(&qchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
788 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
790 if (qchunk.length > mbs)
793 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
795 if (rchunk.length > 0) {
797 pa_memchunk_make_writable(&rchunk, 0);
798 pa_volume_memchunk(&rchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
805 pa_memblock_unref(rchunk.memblock);
808 pa_memblock_unref(qchunk.memblock);
809 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
813 /* Called from thread context */
814 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
816 pa_source_output_assert_ref(o);
817 pa_source_output_assert_io_context(o);
818 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
819 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
824 if (o->process_rewind) {
825 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
827 if (o->thread_info.resampler)
828 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
830 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
833 o->process_rewind(o, nbytes);
835 if (o->thread_info.resampler)
836 pa_resampler_reset(o->thread_info.resampler);
839 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
842 /* Called from thread context */
843 size_t pa_source_output_get_max_rewind(pa_source_output *o) {
844 pa_source_output_assert_ref(o);
845 pa_source_output_assert_io_context(o);
847 return o->thread_info.resampler ? pa_resampler_request(o->thread_info.resampler, o->source->thread_info.max_rewind) : o->source->thread_info.max_rewind;
850 /* Called from thread context */
851 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
852 pa_source_output_assert_ref(o);
853 pa_source_output_assert_io_context(o);
854 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
855 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
857 if (o->update_max_rewind)
858 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
861 /* Called from thread context */
862 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
863 pa_source_output_assert_ref(o);
864 pa_source_output_assert_io_context(o);
866 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
867 usec = o->source->thread_info.fixed_latency;
869 if (usec != (pa_usec_t) -1)
870 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
872 o->thread_info.requested_source_latency = usec;
873 pa_source_invalidate_requested_latency(o->source, TRUE);
878 /* Called from main context */
879 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
880 pa_source_output_assert_ref(o);
881 pa_assert_ctl_context();
883 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
884 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
888 /* If this source output is not realized yet or is being moved, we
889 * have to touch the thread info data directly */
892 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
893 usec = pa_source_get_fixed_latency(o->source);
895 if (usec != (pa_usec_t) -1) {
896 pa_usec_t min_latency, max_latency;
897 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
898 usec = PA_CLAMP(usec, min_latency, max_latency);
902 o->thread_info.requested_source_latency = usec;
907 /* Called from main context */
908 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
909 pa_source_output_assert_ref(o);
910 pa_assert_ctl_context();
912 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
914 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
918 /* If this source output is not realized yet or is being moved, we
919 * have to touch the thread info data directly */
921 return o->thread_info.requested_source_latency;
924 /* Called from main context */
925 void pa_source_output_set_volume(pa_source_output *o, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
928 pa_source_output_assert_ref(o);
929 pa_assert_ctl_context();
930 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
932 pa_assert(pa_cvolume_valid(volume));
933 pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &o->sample_spec));
934 pa_assert(o->volume_writable);
936 if (!absolute && pa_source_flat_volume_enabled(o->source)) {
937 v = o->source->reference_volume;
938 pa_cvolume_remap(&v, &o->source->channel_map, &o->channel_map);
940 if (pa_cvolume_compatible(volume, &o->sample_spec))
941 volume = pa_sw_cvolume_multiply(&v, &v, volume);
943 volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
945 if (!pa_cvolume_compatible(volume, &o->sample_spec)) {
947 volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
951 if (pa_cvolume_equal(volume, &o->volume)) {
952 o->save_volume = o->save_volume || save;
957 o->save_volume = save;
959 if (pa_source_flat_volume_enabled(o->source)) {
960 /* We are in flat volume mode, so let's update all source input
961 * volumes and update the flat volume of the source */
963 pa_source_set_volume(o->source, NULL, TRUE, save);
966 /* OK, we are in normal volume mode. The volume only affects
968 set_real_ratio(o, volume);
970 /* Copy the new soft_volume to the thread_info struct */
971 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
974 /* The volume changed, let's tell people so */
975 if (o->volume_changed)
976 o->volume_changed(o);
978 /* The virtual volume changed, let's tell people so */
979 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
982 /* Called from main context */
983 static void set_real_ratio(pa_source_output *o, const pa_cvolume *v) {
984 pa_source_output_assert_ref(o);
985 pa_assert_ctl_context();
986 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
987 pa_assert(!v || pa_cvolume_compatible(v, &o->sample_spec));
989 /* This basically calculates:
992 * o->soft_volume := o->real_ratio * o->volume_factor */
997 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
999 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
1000 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1003 /* Called from main or I/O context */
1004 pa_bool_t pa_source_output_is_passthrough(pa_source_output *o) {
1005 pa_source_output_assert_ref(o);
1007 if (PA_UNLIKELY(!pa_format_info_is_pcm(o->format)))
1010 if (PA_UNLIKELY(o->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
1016 /* Called from main context */
1017 pa_bool_t pa_source_output_is_volume_readable(pa_source_output *o) {
1018 pa_source_output_assert_ref(o);
1019 pa_assert_ctl_context();
1021 return !pa_source_output_is_passthrough(o);
1024 /* Called from main context */
1025 pa_cvolume *pa_source_output_get_volume(pa_source_output *o, pa_cvolume *volume, pa_bool_t absolute) {
1026 pa_source_output_assert_ref(o);
1027 pa_assert_ctl_context();
1028 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1029 pa_assert(pa_source_output_is_volume_readable(o));
1031 if (absolute || !pa_source_flat_volume_enabled(o->source))
1032 *volume = o->volume;
1034 *volume = o->reference_ratio;
1039 /* Called from main context */
1040 void pa_source_output_set_mute(pa_source_output *o, pa_bool_t mute, pa_bool_t save) {
1041 pa_source_output_assert_ref(o);
1042 pa_assert_ctl_context();
1043 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1045 if (!o->muted == !mute) {
1046 o->save_muted = o->save_muted || mute;
1051 o->save_muted = save;
1053 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
1055 /* The mute status changed, let's tell people so */
1056 if (o->mute_changed)
1059 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1062 /* Called from main context */
1063 pa_bool_t pa_source_output_get_mute(pa_source_output *o) {
1064 pa_source_output_assert_ref(o);
1065 pa_assert_ctl_context();
1066 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1071 /* Called from main thread */
1072 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
1073 pa_source_output_assert_ref(o);
1074 pa_assert_ctl_context();
1077 pa_proplist_update(o->proplist, mode, p);
1079 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1080 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1081 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1085 /* Called from main context */
1086 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
1087 pa_source_output_assert_ref(o);
1088 pa_assert_ctl_context();
1089 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1091 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
1094 /* Called from main context */
1095 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
1096 pa_source_output_assert_ref(o);
1097 pa_assert_ctl_context();
1098 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1099 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
1101 if (o->sample_spec.rate == rate)
1104 o->sample_spec.rate = rate;
1106 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1108 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1112 /* Called from main context */
1113 void pa_source_output_set_name(pa_source_output *o, const char *name) {
1115 pa_assert_ctl_context();
1116 pa_source_output_assert_ref(o);
1118 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
1121 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
1123 if (old && name && !strcmp(old, name))
1127 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
1129 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
1131 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1132 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1133 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1137 /* Called from main context */
1138 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
1139 pa_source_output_assert_ref(o);
1140 pa_assert_ctl_context();
1142 return o->actual_resample_method;
1145 /* Called from main context */
1146 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
1147 pa_source_output_assert_ref(o);
1148 pa_assert_ctl_context();
1149 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1151 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
1154 if (o->direct_on_input)
1160 /* Called from main context */
1161 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
1162 pa_source_output_assert_ref(o);
1163 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1164 pa_source_assert_ref(dest);
1166 if (dest == o->source)
1169 if (!pa_source_output_may_move(o))
1172 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
1173 pa_log_warn("Failed to move source output: too many outputs per source.");
1178 if (!o->may_move_to(o, dest))
1184 /* Called from main context */
1185 int pa_source_output_start_move(pa_source_output *o) {
1189 pa_source_output_assert_ref(o);
1190 pa_assert_ctl_context();
1191 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1192 pa_assert(o->source);
1194 if (!pa_source_output_may_move(o))
1195 return -PA_ERR_NOTSUPPORTED;
1197 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
1202 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
1204 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1205 pa_assert_se(origin->n_corked-- >= 1);
1207 if (pa_source_output_is_passthrough(o))
1208 pa_source_leave_passthrough(o->source);
1210 if (pa_source_flat_volume_enabled(o->source))
1211 /* We might need to update the source's volume if we are in flat
1213 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
1215 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
1217 pa_source_update_status(o->source);
1220 pa_source_output_unref(o);
1225 /* Called from main context. If it has an origin source that uses volume sharing,
1226 * then also the origin source and all streams connected to it need to update
1227 * their volume - this function does all that by using recursion. */
1228 static void update_volume_due_to_moving(pa_source_output *o, pa_source *dest) {
1229 pa_cvolume old_volume;
1233 pa_assert(o->source); /* The destination source should already be set. */
1235 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1236 pa_source *root_source;
1237 pa_source_output *destination_source_output;
1240 root_source = pa_source_get_master(o->source);
1242 if (PA_UNLIKELY(!root_source))
1245 if (pa_source_flat_volume_enabled(o->source)) {
1246 /* Ok, so the origin source uses volume sharing, and flat volume is
1247 * enabled. The volume will have to be updated as follows:
1249 * o->volume := o->source->real_volume
1250 * (handled later by pa_source_set_volume)
1251 * o->reference_ratio := o->volume / o->source->reference_volume
1252 * (handled later by pa_source_set_volume)
1253 * o->real_ratio stays unchanged
1254 * (streams whose origin source uses volume sharing should
1255 * always have real_ratio of 0 dB)
1256 * o->soft_volume stays unchanged
1257 * (streams whose origin source uses volume sharing should
1258 * always have volume_factor as soft_volume, so no change
1259 * should be needed) */
1261 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1262 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1264 /* Notifications will be sent by pa_source_set_volume(). */
1267 /* Ok, so the origin source uses volume sharing, and flat volume is
1268 * disabled. The volume will have to be updated as follows:
1271 * o->reference_ratio := 0 dB
1272 * o->real_ratio stays unchanged
1273 * (streams whose origin source uses volume sharing should
1274 * always have real_ratio of 0 dB)
1275 * o->soft_volume stays unchanged
1276 * (streams whose origin source uses volume sharing should
1277 * always have volume_factor as soft_volume, so no change
1278 * should be needed) */
1280 old_volume = o->volume;
1281 pa_cvolume_reset(&o->volume, o->volume.channels);
1282 pa_cvolume_reset(&o->reference_ratio, o->reference_ratio.channels);
1283 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1284 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1286 /* Notify others about the changed source output volume. */
1287 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1288 if (o->volume_changed)
1289 o->volume_changed(o);
1291 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1295 /* Additionally, the origin source volume needs updating:
1297 * o->destination_source->reference_volume := root_source->reference_volume
1298 * o->destination_source->real_volume := root_source->real_volume
1299 * o->destination_source->soft_volume stays unchanged
1300 * (sources that use volume sharing should always have
1301 * soft_volume of 0 dB) */
1303 old_volume = o->destination_source->reference_volume;
1305 o->destination_source->reference_volume = root_source->reference_volume;
1306 pa_cvolume_remap(&o->destination_source->reference_volume, &root_source->channel_map, &o->destination_source->channel_map);
1308 o->destination_source->real_volume = root_source->real_volume;
1309 pa_cvolume_remap(&o->destination_source->real_volume, &root_source->channel_map, &o->destination_source->channel_map);
1311 pa_assert(pa_cvolume_is_norm(&o->destination_source->soft_volume));
1313 /* Notify others about the changed source volume. If you wonder whether
1314 * o->destination_source->set_volume() should be called somewhere, that's not
1315 * the case, because sources that use volume sharing shouldn't have any
1316 * internal volume that set_volume() would update. If you wonder
1317 * whether the thread_info variables should be synced, yes, they
1318 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1320 if (!pa_cvolume_equal(&o->destination_source->reference_volume, &old_volume))
1321 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, o->destination_source->index);
1323 /* Recursively update origin source outputs. */
1324 PA_IDXSET_FOREACH(destination_source_output, o->destination_source->outputs, idx)
1325 update_volume_due_to_moving(destination_source_output, dest);
1328 old_volume = o->volume;
1330 if (pa_source_flat_volume_enabled(o->source)) {
1331 /* Ok, so this is a regular stream, and flat volume is enabled. The
1332 * volume will have to be updated as follows:
1334 * o->volume := o->reference_ratio * o->source->reference_volume
1335 * o->reference_ratio stays unchanged
1336 * o->real_ratio := o->volume / o->source->real_volume
1337 * (handled later by pa_source_set_volume)
1338 * o->soft_volume := o->real_ratio * o->volume_factor
1339 * (handled later by pa_source_set_volume) */
1341 o->volume = o->source->reference_volume;
1342 pa_cvolume_remap(&o->volume, &o->source->channel_map, &o->channel_map);
1343 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1346 /* Ok, so this is a regular stream, and flat volume is disabled.
1347 * The volume will have to be updated as follows:
1349 * o->volume := o->reference_ratio
1350 * o->reference_ratio stays unchanged
1351 * o->real_ratio := o->reference_ratio
1352 * o->soft_volume := o->real_ratio * o->volume_factor */
1354 o->volume = o->reference_ratio;
1355 o->real_ratio = o->reference_ratio;
1356 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
1359 /* Notify others about the changed source output volume. */
1360 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1361 /* XXX: In case o->source has flat volume enabled, then real_ratio
1362 * and soft_volume are not updated yet. Let's hope that the
1363 * callback implementation doesn't care about those variables... */
1364 if (o->volume_changed)
1365 o->volume_changed(o);
1367 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1371 /* If o->source == dest, then recursion has finished, and we can finally call
1372 * pa_source_set_volume(), which will do the rest of the updates. */
1373 if ((o->source == dest) && pa_source_flat_volume_enabled(o->source))
1374 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
1377 /* Called from main context */
1378 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1379 pa_source_output_assert_ref(o);
1380 pa_assert_ctl_context();
1381 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1382 pa_assert(!o->source);
1383 pa_source_assert_ref(dest);
1385 if (!pa_source_output_may_move_to(o, dest))
1386 return -PA_ERR_NOTSUPPORTED;
1388 if (pa_source_output_is_passthrough(o) && !pa_source_check_format(dest, o->format)) {
1389 pa_proplist *p = pa_proplist_new();
1390 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1391 /* Tell the client what device we want to be on if it is going to
1393 pa_proplist_sets(p, "device", dest->name);
1394 pa_source_output_send_event(o, PA_STREAM_EVENT_FORMAT_LOST, p);
1395 pa_proplist_free(p);
1396 return -PA_ERR_NOTSUPPORTED;
1399 if (!(o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
1400 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec)){
1401 /* try to change dest sink rate if possible without glitches.
1402 module-suspend-on-idle resumes destination source with
1403 SOURCE_OUTPUT_MOVE_FINISH hook */
1405 pa_log_info("Trying to change sample rate");
1406 if (pa_source_update_rate(dest, o->sample_spec.rate, pa_source_output_is_passthrough(o)) == TRUE)
1407 pa_log_info("Rate changed to %u kHz",
1408 dest->sample_spec.rate);
1410 pa_log_info("Resampling enabled to %u kHz",
1411 dest->sample_spec.rate);
1418 o->save_source = save;
1419 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
1421 pa_cvolume_remap(&o->volume_factor_source, &o->channel_map, &o->source->channel_map);
1423 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1424 o->source->n_corked++;
1426 pa_source_output_update_rate(o);
1428 pa_source_update_status(dest);
1430 update_volume_due_to_moving(o, dest);
1432 if (pa_source_output_is_passthrough(o))
1433 pa_source_enter_passthrough(o->source);
1435 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
1437 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
1439 /* Notify everyone */
1440 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
1441 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1446 /* Called from main context */
1447 void pa_source_output_fail_move(pa_source_output *o) {
1449 pa_source_output_assert_ref(o);
1450 pa_assert_ctl_context();
1451 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1452 pa_assert(!o->source);
1454 /* Check if someone wants this source output? */
1455 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP)
1461 pa_source_output_kill(o);
1464 /* Called from main context */
1465 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1468 pa_source_output_assert_ref(o);
1469 pa_assert_ctl_context();
1470 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1471 pa_assert(o->source);
1472 pa_source_assert_ref(dest);
1474 if (dest == o->source)
1477 if (!pa_source_output_may_move_to(o, dest))
1478 return -PA_ERR_NOTSUPPORTED;
1480 pa_source_output_ref(o);
1482 if ((r = pa_source_output_start_move(o)) < 0) {
1483 pa_source_output_unref(o);
1487 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
1488 pa_source_output_fail_move(o);
1489 pa_source_output_unref(o);
1493 pa_source_output_unref(o);
1498 /* Called from IO thread context */
1499 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
1500 pa_source_output_assert_ref(o);
1501 pa_source_output_assert_io_context(o);
1503 if (state == o->thread_info.state)
1506 if (o->state_change)
1507 o->state_change(o, state);
1509 o->thread_info.state = state;
1512 /* Called from IO thread context, except when it is not */
1513 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
1514 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
1515 pa_source_output_assert_ref(o);
1519 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
1520 pa_usec_t *r = userdata;
1522 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
1523 r[1] += pa_source_get_latency_within_thread(o->source);
1528 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
1530 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1531 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1534 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
1536 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
1540 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1541 pa_usec_t *usec = userdata;
1543 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
1548 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1549 pa_usec_t *r = userdata;
1551 *r = o->thread_info.requested_source_latency;
1555 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME:
1556 if (!pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume)) {
1557 o->thread_info.soft_volume = o->soft_volume;
1561 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE:
1562 if (o->thread_info.muted != o->muted) {
1563 o->thread_info.muted = o->muted;
1568 return -PA_ERR_NOTIMPLEMENTED;
1571 /* Called from main context */
1572 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
1573 pa_proplist *pl = NULL;
1574 pa_source_output_send_event_hook_data hook_data;
1576 pa_source_output_assert_ref(o);
1577 pa_assert_ctl_context();
1584 data = pl = pa_proplist_new();
1586 hook_data.source_output = o;
1587 hook_data.data = data;
1588 hook_data.event = event;
1590 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
1593 o->send_event(o, event, data);
1597 pa_proplist_free(pl);
1600 /* Called from main context */
1601 /* Updates the source output's resampler with whatever the current source
1602 * requires -- useful when the underlying source's rate might have changed */
1603 int pa_source_output_update_rate(pa_source_output *o) {
1604 pa_resampler *new_resampler;
1605 char *memblockq_name;
1607 pa_source_output_assert_ref(o);
1608 pa_assert_ctl_context();
1610 if (o->thread_info.resampler &&
1611 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &o->source->sample_spec) &&
1612 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &o->source->channel_map))
1614 new_resampler = o->thread_info.resampler;
1616 else if (!pa_source_output_is_passthrough(o) &&
1617 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
1618 !pa_sample_spec_equal(&o->sample_spec, &o->source->sample_spec) ||
1619 !pa_channel_map_equal(&o->channel_map, &o->source->channel_map))) {
1621 new_resampler = pa_resampler_new(o->core->mempool,
1622 &o->source->sample_spec, &o->source->channel_map,
1623 &o->sample_spec, &o->channel_map,
1624 o->requested_resample_method,
1625 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1626 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1627 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0));
1629 if (!new_resampler) {
1630 pa_log_warn("Unsupported resampling operation.");
1631 return -PA_ERR_NOTSUPPORTED;
1634 new_resampler = NULL;
1636 if (new_resampler == o->thread_info.resampler)
1639 if (o->thread_info.resampler)
1640 pa_resampler_free(o->thread_info.resampler);
1642 o->thread_info.resampler = new_resampler;
1644 pa_memblockq_free(o->thread_info.delay_memblockq);
1646 memblockq_name = pa_sprintf_malloc("source output delay_memblockq [%u]", o->index);
1647 o->thread_info.delay_memblockq = pa_memblockq_new(
1650 MEMBLOCKQ_MAXLENGTH,
1652 &o->source->sample_spec,
1656 &o->source->silence);
1657 pa_xfree(memblockq_name);
1659 o->actual_resample_method = new_resampler ? pa_resampler_get_method(new_resampler) : PA_RESAMPLER_INVALID;
1661 pa_log_debug("Updated resmpler for source output %d", o->index);