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 pa_return_val_if_fail(pa_format_info_to_sample_spec(data->format, &ss, &map) == 0, -PA_ERR_INVALID);
276 pa_source_output_new_data_set_sample_spec(data, &ss);
277 if (pa_format_info_is_pcm(data->format) && pa_channel_map_valid(&map))
278 pa_source_output_new_data_set_channel_map(data, &map);
280 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
281 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
283 if (!data->sample_spec_is_set)
284 data->sample_spec = data->source->sample_spec;
286 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
288 if (!data->channel_map_is_set) {
289 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
290 data->channel_map = data->source->channel_map;
292 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
295 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
297 /* Don't restore (or save) stream volume for passthrough streams and
298 * prevent attenuation/gain */
299 if (pa_source_output_new_data_is_passthrough(data)) {
300 data->volume_is_set = TRUE;
301 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
302 data->volume_is_absolute = TRUE;
303 data->save_volume = FALSE;
306 if (!data->volume_is_set) {
307 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
308 data->volume_is_absolute = FALSE;
309 data->save_volume = FALSE;
312 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
314 if (!data->volume_factor_is_set)
315 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
317 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
319 if (!data->volume_factor_source_is_set)
320 pa_cvolume_reset(&data->volume_factor_source, data->source->sample_spec.channels);
322 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_source, &data->source->sample_spec), -PA_ERR_INVALID);
324 if (!data->muted_is_set)
327 if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
328 data->sample_spec.format = data->source->sample_spec.format;
330 if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE)
331 data->sample_spec.rate = data->source->sample_spec.rate;
333 original_cm = data->channel_map;
335 if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
336 data->sample_spec.channels = data->source->sample_spec.channels;
337 data->channel_map = data->source->channel_map;
340 pa_assert(pa_sample_spec_valid(&data->sample_spec));
341 pa_assert(pa_channel_map_valid(&data->channel_map));
343 /* Due to the fixing of the sample spec the volume might not match anymore */
344 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
346 if (!(data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
347 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec)){
348 /* try to change source rate. This is done before the FIXATE hook since
349 module-suspend-on-idle can resume a source */
351 pa_log_info("Trying to change sample rate");
352 if (pa_source_update_rate(data->source, data->sample_spec.rate, pa_source_output_new_data_is_passthrough(data)) == TRUE)
353 pa_log_info("Rate changed to %u Hz",
354 data->source->sample_spec.rate);
356 pa_log_info("Resampling enabled to %u Hz", data->source->sample_spec.rate);
359 if (data->resample_method == PA_RESAMPLER_INVALID)
360 data->resample_method = core->resample_method;
362 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
364 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
367 if ((data->flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) &&
368 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
369 pa_log("Failed to create source output: source is suspended.");
370 return -PA_ERR_BADSTATE;
373 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
374 pa_log("Failed to create source output: too many outputs per source.");
375 return -PA_ERR_TOOLARGE;
378 if ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
379 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
380 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
382 if (!pa_source_output_new_data_is_passthrough(data)) /* no resampler for passthrough content */
383 if (!(resampler = pa_resampler_new(
385 &data->source->sample_spec, &data->source->channel_map,
386 &data->sample_spec, &data->channel_map,
387 data->resample_method,
388 ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
389 ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
390 (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
391 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
392 pa_log_warn("Unsupported resampling operation.");
393 return -PA_ERR_NOTSUPPORTED;
397 o = pa_msgobject_new(pa_source_output);
398 o->parent.parent.free = source_output_free;
399 o->parent.process_msg = pa_source_output_process_msg;
402 o->state = PA_SOURCE_OUTPUT_INIT;
403 o->flags = data->flags;
404 o->proplist = pa_proplist_copy(data->proplist);
405 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
406 o->module = data->module;
407 o->source = data->source;
408 o->destination_source = data->destination_source;
409 o->client = data->client;
411 o->requested_resample_method = data->resample_method;
412 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
413 o->sample_spec = data->sample_spec;
414 o->channel_map = data->channel_map;
415 o->format = pa_format_info_copy(data->format);
417 if (!data->volume_is_absolute && pa_source_flat_volume_enabled(o->source)) {
420 /* When the 'absolute' bool is not set then we'll treat the volume
421 * as relative to the source volume even in flat volume mode */
422 remapped = data->source->reference_volume;
423 pa_cvolume_remap(&remapped, &data->source->channel_map, &data->channel_map);
424 pa_sw_cvolume_multiply(&o->volume, &data->volume, &remapped);
426 o->volume = data->volume;
428 o->volume_factor = data->volume_factor;
429 o->volume_factor_source = data->volume_factor_source;
430 o->real_ratio = o->reference_ratio = data->volume;
431 pa_cvolume_reset(&o->soft_volume, o->sample_spec.channels);
432 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
433 o->volume_writable = data->volume_writable;
434 o->save_volume = data->save_volume;
435 o->save_source = data->save_source;
436 o->save_muted = data->save_muted;
438 o->muted = data->muted;
440 o->direct_on_input = data->direct_on_input;
445 o->thread_info.state = o->state;
446 o->thread_info.attached = FALSE;
447 o->thread_info.sample_spec = o->sample_spec;
448 o->thread_info.resampler = resampler;
449 o->thread_info.soft_volume = o->soft_volume;
450 o->thread_info.muted = o->muted;
451 o->thread_info.requested_source_latency = (pa_usec_t) -1;
452 o->thread_info.direct_on_input = o->direct_on_input;
454 o->thread_info.delay_memblockq = pa_memblockq_new(
455 "source output delay_memblockq",
459 &o->source->sample_spec,
463 &o->source->silence);
465 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
466 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
469 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
471 if (o->direct_on_input)
472 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
474 pt = pa_proplist_to_string_sep(o->proplist, "\n ");
475 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
477 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
479 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
480 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map),
484 /* Don't forget to call pa_source_output_put! */
490 /* Called from main context */
491 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
493 pa_assert_ctl_context();
498 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
499 pa_assert_se(o->source->n_corked -- >= 1);
500 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
501 o->source->n_corked++;
504 /* Called from main context */
505 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
508 pa_assert_ctl_context();
510 if (o->state == state)
513 if (o->state == PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_RUNNING && pa_source_used_by(o->source) == 0) {
514 /* We were uncorked and the source was not playing anything -- let's try
515 * to update the sample rate to avoid resampling */
516 pa_source_update_rate(o->source, o->sample_spec.rate, pa_source_output_is_passthrough(o));
519 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);
521 update_n_corked(o, state);
524 if (state != PA_SOURCE_OUTPUT_UNLINKED) {
525 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
527 if (PA_SOURCE_OUTPUT_IS_LINKED(state))
528 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
531 pa_source_update_status(o->source);
534 /* Called from main context */
535 void pa_source_output_unlink(pa_source_output*o) {
538 pa_assert_ctl_context();
540 /* See pa_sink_unlink() for a couple of comments how this function
543 pa_source_output_ref(o);
545 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
548 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
550 if (o->direct_on_input)
551 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
553 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
556 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
557 pa_source_output_unref(o);
560 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
562 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
563 o->state = PA_SOURCE_OUTPUT_UNLINKED;
565 if (linked && o->source) {
566 if (pa_source_output_is_passthrough(o))
567 pa_source_leave_passthrough(o->source);
569 /* We might need to update the source's volume if we are in flat volume mode. */
570 if (pa_source_flat_volume_enabled(o->source))
571 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
573 if (o->source->asyncmsgq)
574 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
580 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
581 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
585 if (PA_SOURCE_IS_LINKED(pa_source_get_state(o->source)))
586 pa_source_update_status(o->source);
591 pa_core_maybe_vacuum(o->core);
593 pa_source_output_unref(o);
596 /* Called from main context */
597 static void source_output_free(pa_object* mo) {
598 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
601 pa_assert_ctl_context();
602 pa_assert(pa_source_output_refcnt(o) == 0);
604 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
605 pa_source_output_unlink(o);
607 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
609 if (o->thread_info.delay_memblockq)
610 pa_memblockq_free(o->thread_info.delay_memblockq);
612 if (o->thread_info.resampler)
613 pa_resampler_free(o->thread_info.resampler);
616 pa_format_info_free(o->format);
619 pa_proplist_free(o->proplist);
625 /* Called from main context */
626 void pa_source_output_put(pa_source_output *o) {
627 pa_source_output_state_t state;
629 pa_source_output_assert_ref(o);
630 pa_assert_ctl_context();
632 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
634 /* The following fields must be initialized properly */
638 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
640 update_n_corked(o, state);
643 /* We might need to update the source's volume if we are in flat volume mode. */
644 if (pa_source_flat_volume_enabled(o->source))
645 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
647 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
648 pa_assert(pa_cvolume_is_norm(&o->volume));
649 pa_assert(pa_cvolume_is_norm(&o->reference_ratio));
652 set_real_ratio(o, &o->volume);
655 if (pa_source_output_is_passthrough(o))
656 pa_source_enter_passthrough(o->source);
658 o->thread_info.soft_volume = o->soft_volume;
659 o->thread_info.muted = o->muted;
661 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
663 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
664 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
666 pa_source_update_status(o->source);
669 /* Called from main context */
670 void pa_source_output_kill(pa_source_output*o) {
671 pa_source_output_assert_ref(o);
672 pa_assert_ctl_context();
673 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
678 /* Called from main context */
679 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
680 pa_usec_t r[2] = { 0, 0 };
682 pa_source_output_assert_ref(o);
683 pa_assert_ctl_context();
684 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
686 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
689 r[0] += o->get_latency(o);
692 *source_latency = r[1];
697 /* Called from thread context */
698 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
699 pa_bool_t need_volume_factor_source;
700 pa_bool_t volume_is_norm;
702 size_t limit, mbs = 0;
704 pa_source_output_assert_ref(o);
705 pa_source_output_assert_io_context(o);
706 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
708 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
710 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
713 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
715 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
716 pa_log_debug("Delay queue overflow!");
717 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
720 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
722 volume_is_norm = pa_cvolume_is_norm(&o->thread_info.soft_volume) && !o->thread_info.muted;
723 need_volume_factor_source = !pa_cvolume_is_norm(&o->volume_factor_source);
725 if (limit > 0 && o->source->monitor_of) {
729 /* Hmm, check the latency for knowing how much of the buffered
730 * data is actually still unplayed and might hence still
731 * change. This is suboptimal. Ideally we'd have a call like
732 * pa_sink_get_changeable_size() or so that tells us how much
733 * of the queued data is actually still changeable. Hence
736 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
738 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
744 /* Implement the delay queue */
745 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
747 pa_bool_t nvfs = need_volume_factor_source;
751 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
753 if (qchunk.length > length)
754 qchunk.length = length;
756 pa_assert(qchunk.length > 0);
758 /* It might be necessary to adjust the volume here */
759 if (!volume_is_norm) {
760 pa_memchunk_make_writable(&qchunk, 0);
762 if (o->thread_info.muted) {
763 pa_silence_memchunk(&qchunk, &o->source->sample_spec);
766 } else if (!o->thread_info.resampler && nvfs) {
769 /* If we don't need a resampler we can merge the
770 * post and the pre volume adjustment into one */
772 pa_sw_cvolume_multiply(&v, &o->thread_info.soft_volume, &o->volume_factor_source);
773 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &v);
777 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &o->thread_info.soft_volume);
780 if (!o->thread_info.resampler) {
782 pa_memchunk_make_writable(&qchunk, 0);
783 pa_volume_memchunk(&qchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
791 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
793 if (qchunk.length > mbs)
796 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
798 if (rchunk.length > 0) {
800 pa_memchunk_make_writable(&rchunk, 0);
801 pa_volume_memchunk(&rchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
808 pa_memblock_unref(rchunk.memblock);
811 pa_memblock_unref(qchunk.memblock);
812 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
816 /* Called from thread context */
817 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
819 pa_source_output_assert_ref(o);
820 pa_source_output_assert_io_context(o);
821 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
822 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
827 if (o->process_rewind) {
828 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
830 if (o->thread_info.resampler)
831 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
833 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
836 o->process_rewind(o, nbytes);
838 if (o->thread_info.resampler)
839 pa_resampler_reset(o->thread_info.resampler);
842 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
845 /* Called from thread context */
846 size_t pa_source_output_get_max_rewind(pa_source_output *o) {
847 pa_source_output_assert_ref(o);
848 pa_source_output_assert_io_context(o);
850 return o->thread_info.resampler ? pa_resampler_request(o->thread_info.resampler, o->source->thread_info.max_rewind) : o->source->thread_info.max_rewind;
853 /* Called from thread context */
854 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
855 pa_source_output_assert_ref(o);
856 pa_source_output_assert_io_context(o);
857 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
858 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
860 if (o->update_max_rewind)
861 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
864 /* Called from thread context */
865 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
866 pa_source_output_assert_ref(o);
867 pa_source_output_assert_io_context(o);
869 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
870 usec = o->source->thread_info.fixed_latency;
872 if (usec != (pa_usec_t) -1)
873 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
875 o->thread_info.requested_source_latency = usec;
876 pa_source_invalidate_requested_latency(o->source, TRUE);
881 /* Called from main context */
882 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
883 pa_source_output_assert_ref(o);
884 pa_assert_ctl_context();
886 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
887 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
891 /* If this source output is not realized yet or is being moved, we
892 * have to touch the thread info data directly */
895 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
896 usec = pa_source_get_fixed_latency(o->source);
898 if (usec != (pa_usec_t) -1) {
899 pa_usec_t min_latency, max_latency;
900 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
901 usec = PA_CLAMP(usec, min_latency, max_latency);
905 o->thread_info.requested_source_latency = usec;
910 /* Called from main context */
911 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
912 pa_source_output_assert_ref(o);
913 pa_assert_ctl_context();
915 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
917 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
921 /* If this source output is not realized yet or is being moved, we
922 * have to touch the thread info data directly */
924 return o->thread_info.requested_source_latency;
927 /* Called from main context */
928 void pa_source_output_set_volume(pa_source_output *o, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
931 pa_source_output_assert_ref(o);
932 pa_assert_ctl_context();
933 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
935 pa_assert(pa_cvolume_valid(volume));
936 pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &o->sample_spec));
937 pa_assert(o->volume_writable);
939 if (!absolute && pa_source_flat_volume_enabled(o->source)) {
940 v = o->source->reference_volume;
941 pa_cvolume_remap(&v, &o->source->channel_map, &o->channel_map);
943 if (pa_cvolume_compatible(volume, &o->sample_spec))
944 volume = pa_sw_cvolume_multiply(&v, &v, volume);
946 volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
948 if (!pa_cvolume_compatible(volume, &o->sample_spec)) {
950 volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
954 if (pa_cvolume_equal(volume, &o->volume)) {
955 o->save_volume = o->save_volume || save;
960 o->save_volume = save;
962 if (pa_source_flat_volume_enabled(o->source)) {
963 /* We are in flat volume mode, so let's update all source input
964 * volumes and update the flat volume of the source */
966 pa_source_set_volume(o->source, NULL, TRUE, save);
969 /* OK, we are in normal volume mode. The volume only affects
971 set_real_ratio(o, volume);
973 /* Copy the new soft_volume to the thread_info struct */
974 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
977 /* The volume changed, let's tell people so */
978 if (o->volume_changed)
979 o->volume_changed(o);
981 /* The virtual volume changed, let's tell people so */
982 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
985 /* Called from main context */
986 static void set_real_ratio(pa_source_output *o, const pa_cvolume *v) {
987 pa_source_output_assert_ref(o);
988 pa_assert_ctl_context();
989 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
990 pa_assert(!v || pa_cvolume_compatible(v, &o->sample_spec));
992 /* This basically calculates:
995 * o->soft_volume := o->real_ratio * o->volume_factor */
1000 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
1002 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
1003 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1006 /* Called from main or I/O context */
1007 pa_bool_t pa_source_output_is_passthrough(pa_source_output *o) {
1008 pa_source_output_assert_ref(o);
1010 if (PA_UNLIKELY(!pa_format_info_is_pcm(o->format)))
1013 if (PA_UNLIKELY(o->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
1019 /* Called from main context */
1020 pa_bool_t pa_source_output_is_volume_readable(pa_source_output *o) {
1021 pa_source_output_assert_ref(o);
1022 pa_assert_ctl_context();
1024 return !pa_source_output_is_passthrough(o);
1027 /* Called from main context */
1028 pa_cvolume *pa_source_output_get_volume(pa_source_output *o, pa_cvolume *volume, pa_bool_t absolute) {
1029 pa_source_output_assert_ref(o);
1030 pa_assert_ctl_context();
1031 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1032 pa_assert(pa_source_output_is_volume_readable(o));
1034 if (absolute || !pa_source_flat_volume_enabled(o->source))
1035 *volume = o->volume;
1037 *volume = o->reference_ratio;
1042 /* Called from main context */
1043 void pa_source_output_set_mute(pa_source_output *o, pa_bool_t mute, pa_bool_t save) {
1044 pa_source_output_assert_ref(o);
1045 pa_assert_ctl_context();
1046 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1048 if (!o->muted == !mute) {
1049 o->save_muted = o->save_muted || mute;
1054 o->save_muted = save;
1056 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
1058 /* The mute status changed, let's tell people so */
1059 if (o->mute_changed)
1062 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1065 /* Called from main context */
1066 pa_bool_t pa_source_output_get_mute(pa_source_output *o) {
1067 pa_source_output_assert_ref(o);
1068 pa_assert_ctl_context();
1069 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1074 /* Called from main thread */
1075 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
1076 pa_source_output_assert_ref(o);
1077 pa_assert_ctl_context();
1080 pa_proplist_update(o->proplist, mode, p);
1082 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1083 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1084 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1088 /* Called from main context */
1089 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
1090 pa_source_output_assert_ref(o);
1091 pa_assert_ctl_context();
1092 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1094 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
1097 /* Called from main context */
1098 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
1099 pa_source_output_assert_ref(o);
1100 pa_assert_ctl_context();
1101 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1102 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
1104 if (o->sample_spec.rate == rate)
1107 o->sample_spec.rate = rate;
1109 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1111 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1115 /* Called from main context */
1116 void pa_source_output_set_name(pa_source_output *o, const char *name) {
1118 pa_assert_ctl_context();
1119 pa_source_output_assert_ref(o);
1121 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
1124 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
1126 if (old && name && !strcmp(old, name))
1130 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
1132 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
1134 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1135 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1136 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1140 /* Called from main context */
1141 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
1142 pa_source_output_assert_ref(o);
1143 pa_assert_ctl_context();
1145 return o->actual_resample_method;
1148 /* Called from main context */
1149 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
1150 pa_source_output_assert_ref(o);
1151 pa_assert_ctl_context();
1152 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1154 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
1157 if (o->direct_on_input)
1163 /* Called from main context */
1164 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
1165 pa_source_output_assert_ref(o);
1166 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1167 pa_source_assert_ref(dest);
1169 if (dest == o->source)
1172 if (!pa_source_output_may_move(o))
1175 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
1176 pa_log_warn("Failed to move source output: too many outputs per source.");
1181 if (!o->may_move_to(o, dest))
1187 /* Called from main context */
1188 int pa_source_output_start_move(pa_source_output *o) {
1192 pa_source_output_assert_ref(o);
1193 pa_assert_ctl_context();
1194 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1195 pa_assert(o->source);
1197 if (!pa_source_output_may_move(o))
1198 return -PA_ERR_NOTSUPPORTED;
1200 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
1205 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
1207 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1208 pa_assert_se(origin->n_corked-- >= 1);
1210 if (pa_source_output_is_passthrough(o))
1211 pa_source_leave_passthrough(o->source);
1213 if (pa_source_flat_volume_enabled(o->source))
1214 /* We might need to update the source's volume if we are in flat
1216 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
1218 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
1220 pa_source_update_status(o->source);
1223 pa_source_output_unref(o);
1228 /* Called from main context. If it has an origin source that uses volume sharing,
1229 * then also the origin source and all streams connected to it need to update
1230 * their volume - this function does all that by using recursion. */
1231 static void update_volume_due_to_moving(pa_source_output *o, pa_source *dest) {
1232 pa_cvolume old_volume;
1236 pa_assert(o->source); /* The destination source should already be set. */
1238 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1239 pa_source *root_source;
1240 pa_source_output *destination_source_output;
1243 root_source = pa_source_get_master(o->source);
1245 if (PA_UNLIKELY(!root_source))
1248 if (pa_source_flat_volume_enabled(o->source)) {
1249 /* Ok, so the origin source uses volume sharing, and flat volume is
1250 * enabled. The volume will have to be updated as follows:
1252 * o->volume := o->source->real_volume
1253 * (handled later by pa_source_set_volume)
1254 * o->reference_ratio := o->volume / o->source->reference_volume
1255 * (handled later by pa_source_set_volume)
1256 * o->real_ratio stays unchanged
1257 * (streams whose origin source uses volume sharing should
1258 * always have real_ratio of 0 dB)
1259 * o->soft_volume stays unchanged
1260 * (streams whose origin source uses volume sharing should
1261 * always have volume_factor as soft_volume, so no change
1262 * should be needed) */
1264 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1265 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1267 /* Notifications will be sent by pa_source_set_volume(). */
1270 /* Ok, so the origin source uses volume sharing, and flat volume is
1271 * disabled. The volume will have to be updated as follows:
1274 * o->reference_ratio := 0 dB
1275 * o->real_ratio stays unchanged
1276 * (streams whose origin source uses volume sharing should
1277 * always have real_ratio of 0 dB)
1278 * o->soft_volume stays unchanged
1279 * (streams whose origin source uses volume sharing should
1280 * always have volume_factor as soft_volume, so no change
1281 * should be needed) */
1283 old_volume = o->volume;
1284 pa_cvolume_reset(&o->volume, o->volume.channels);
1285 pa_cvolume_reset(&o->reference_ratio, o->reference_ratio.channels);
1286 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1287 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1289 /* Notify others about the changed source output volume. */
1290 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1291 if (o->volume_changed)
1292 o->volume_changed(o);
1294 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1298 /* Additionally, the origin source volume needs updating:
1300 * o->destination_source->reference_volume := root_source->reference_volume
1301 * o->destination_source->real_volume := root_source->real_volume
1302 * o->destination_source->soft_volume stays unchanged
1303 * (sources that use volume sharing should always have
1304 * soft_volume of 0 dB) */
1306 old_volume = o->destination_source->reference_volume;
1308 o->destination_source->reference_volume = root_source->reference_volume;
1309 pa_cvolume_remap(&o->destination_source->reference_volume, &root_source->channel_map, &o->destination_source->channel_map);
1311 o->destination_source->real_volume = root_source->real_volume;
1312 pa_cvolume_remap(&o->destination_source->real_volume, &root_source->channel_map, &o->destination_source->channel_map);
1314 pa_assert(pa_cvolume_is_norm(&o->destination_source->soft_volume));
1316 /* Notify others about the changed source volume. If you wonder whether
1317 * o->destination_source->set_volume() should be called somewhere, that's not
1318 * the case, because sources that use volume sharing shouldn't have any
1319 * internal volume that set_volume() would update. If you wonder
1320 * whether the thread_info variables should be synced, yes, they
1321 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1323 if (!pa_cvolume_equal(&o->destination_source->reference_volume, &old_volume))
1324 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, o->destination_source->index);
1326 /* Recursively update origin source outputs. */
1327 PA_IDXSET_FOREACH(destination_source_output, o->destination_source->outputs, idx)
1328 update_volume_due_to_moving(destination_source_output, dest);
1331 old_volume = o->volume;
1333 if (pa_source_flat_volume_enabled(o->source)) {
1334 /* Ok, so this is a regular stream, and flat volume is enabled. The
1335 * volume will have to be updated as follows:
1337 * o->volume := o->reference_ratio * o->source->reference_volume
1338 * o->reference_ratio stays unchanged
1339 * o->real_ratio := o->volume / o->source->real_volume
1340 * (handled later by pa_source_set_volume)
1341 * o->soft_volume := o->real_ratio * o->volume_factor
1342 * (handled later by pa_source_set_volume) */
1344 o->volume = o->source->reference_volume;
1345 pa_cvolume_remap(&o->volume, &o->source->channel_map, &o->channel_map);
1346 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1349 /* Ok, so this is a regular stream, and flat volume is disabled.
1350 * The volume will have to be updated as follows:
1352 * o->volume := o->reference_ratio
1353 * o->reference_ratio stays unchanged
1354 * o->real_ratio := o->reference_ratio
1355 * o->soft_volume := o->real_ratio * o->volume_factor */
1357 o->volume = o->reference_ratio;
1358 o->real_ratio = o->reference_ratio;
1359 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
1362 /* Notify others about the changed source output volume. */
1363 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1364 /* XXX: In case o->source has flat volume enabled, then real_ratio
1365 * and soft_volume are not updated yet. Let's hope that the
1366 * callback implementation doesn't care about those variables... */
1367 if (o->volume_changed)
1368 o->volume_changed(o);
1370 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1374 /* If o->source == dest, then recursion has finished, and we can finally call
1375 * pa_source_set_volume(), which will do the rest of the updates. */
1376 if ((o->source == dest) && pa_source_flat_volume_enabled(o->source))
1377 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
1380 /* Called from main context */
1381 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1382 pa_source_output_assert_ref(o);
1383 pa_assert_ctl_context();
1384 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1385 pa_assert(!o->source);
1386 pa_source_assert_ref(dest);
1388 if (!pa_source_output_may_move_to(o, dest))
1389 return -PA_ERR_NOTSUPPORTED;
1391 if (pa_source_output_is_passthrough(o) && !pa_source_check_format(dest, o->format)) {
1392 pa_proplist *p = pa_proplist_new();
1393 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1394 /* Tell the client what device we want to be on if it is going to
1396 pa_proplist_sets(p, "device", dest->name);
1397 pa_source_output_send_event(o, PA_STREAM_EVENT_FORMAT_LOST, p);
1398 pa_proplist_free(p);
1399 return -PA_ERR_NOTSUPPORTED;
1402 if (!(o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
1403 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec)){
1404 /* try to change dest sink rate if possible without glitches.
1405 module-suspend-on-idle resumes destination source with
1406 SOURCE_OUTPUT_MOVE_FINISH hook */
1408 pa_log_info("Trying to change sample rate");
1409 if (pa_source_update_rate(dest, o->sample_spec.rate, pa_source_output_is_passthrough(o)) == TRUE)
1410 pa_log_info("Rate changed to %u Hz",
1411 dest->sample_spec.rate);
1413 pa_log_info("Resampling enabled to %u Hz",
1414 dest->sample_spec.rate);
1421 o->save_source = save;
1422 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
1424 pa_cvolume_remap(&o->volume_factor_source, &o->channel_map, &o->source->channel_map);
1426 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1427 o->source->n_corked++;
1429 pa_source_output_update_rate(o);
1431 pa_source_update_status(dest);
1433 update_volume_due_to_moving(o, dest);
1435 if (pa_source_output_is_passthrough(o))
1436 pa_source_enter_passthrough(o->source);
1438 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
1440 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
1442 /* Notify everyone */
1443 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
1444 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1449 /* Called from main context */
1450 void pa_source_output_fail_move(pa_source_output *o) {
1452 pa_source_output_assert_ref(o);
1453 pa_assert_ctl_context();
1454 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1455 pa_assert(!o->source);
1457 /* Check if someone wants this source output? */
1458 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP)
1464 pa_source_output_kill(o);
1467 /* Called from main context */
1468 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1471 pa_source_output_assert_ref(o);
1472 pa_assert_ctl_context();
1473 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1474 pa_assert(o->source);
1475 pa_source_assert_ref(dest);
1477 if (dest == o->source)
1480 if (!pa_source_output_may_move_to(o, dest))
1481 return -PA_ERR_NOTSUPPORTED;
1483 pa_source_output_ref(o);
1485 if ((r = pa_source_output_start_move(o)) < 0) {
1486 pa_source_output_unref(o);
1490 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
1491 pa_source_output_fail_move(o);
1492 pa_source_output_unref(o);
1496 pa_source_output_unref(o);
1501 /* Called from IO thread context */
1502 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
1503 pa_source_output_assert_ref(o);
1504 pa_source_output_assert_io_context(o);
1506 if (state == o->thread_info.state)
1509 if (o->state_change)
1510 o->state_change(o, state);
1512 o->thread_info.state = state;
1515 /* Called from IO thread context, except when it is not */
1516 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
1517 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
1518 pa_source_output_assert_ref(o);
1522 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
1523 pa_usec_t *r = userdata;
1525 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
1526 r[1] += pa_source_get_latency_within_thread(o->source);
1531 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
1533 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1534 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1537 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
1539 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
1543 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1544 pa_usec_t *usec = userdata;
1546 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
1551 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1552 pa_usec_t *r = userdata;
1554 *r = o->thread_info.requested_source_latency;
1558 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME:
1559 if (!pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume)) {
1560 o->thread_info.soft_volume = o->soft_volume;
1564 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE:
1565 if (o->thread_info.muted != o->muted) {
1566 o->thread_info.muted = o->muted;
1571 return -PA_ERR_NOTIMPLEMENTED;
1574 /* Called from main context */
1575 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
1576 pa_proplist *pl = NULL;
1577 pa_source_output_send_event_hook_data hook_data;
1579 pa_source_output_assert_ref(o);
1580 pa_assert_ctl_context();
1587 data = pl = pa_proplist_new();
1589 hook_data.source_output = o;
1590 hook_data.data = data;
1591 hook_data.event = event;
1593 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
1596 o->send_event(o, event, data);
1600 pa_proplist_free(pl);
1603 /* Called from main context */
1604 /* Updates the source output's resampler with whatever the current source
1605 * requires -- useful when the underlying source's rate might have changed */
1606 int pa_source_output_update_rate(pa_source_output *o) {
1607 pa_resampler *new_resampler;
1608 char *memblockq_name;
1610 pa_source_output_assert_ref(o);
1611 pa_assert_ctl_context();
1613 if (o->thread_info.resampler &&
1614 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &o->source->sample_spec) &&
1615 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &o->source->channel_map))
1617 new_resampler = o->thread_info.resampler;
1619 else if (!pa_source_output_is_passthrough(o) &&
1620 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
1621 !pa_sample_spec_equal(&o->sample_spec, &o->source->sample_spec) ||
1622 !pa_channel_map_equal(&o->channel_map, &o->source->channel_map))) {
1624 new_resampler = pa_resampler_new(o->core->mempool,
1625 &o->source->sample_spec, &o->source->channel_map,
1626 &o->sample_spec, &o->channel_map,
1627 o->requested_resample_method,
1628 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1629 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1630 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0));
1632 if (!new_resampler) {
1633 pa_log_warn("Unsupported resampling operation.");
1634 return -PA_ERR_NOTSUPPORTED;
1637 new_resampler = NULL;
1639 if (new_resampler == o->thread_info.resampler)
1642 if (o->thread_info.resampler)
1643 pa_resampler_free(o->thread_info.resampler);
1645 o->thread_info.resampler = new_resampler;
1647 pa_memblockq_free(o->thread_info.delay_memblockq);
1649 memblockq_name = pa_sprintf_malloc("source output delay_memblockq [%u]", o->index);
1650 o->thread_info.delay_memblockq = pa_memblockq_new(
1653 MEMBLOCKQ_MAXLENGTH,
1655 &o->source->sample_spec,
1659 &o->source->silence);
1660 pa_xfree(memblockq_name);
1662 o->actual_resample_method = new_resampler ? pa_resampler_get_method(new_resampler) : PA_RESAMPLER_INVALID;
1664 pa_log_debug("Updated resampler for source output %d", o->index);