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sink,source: Handle missing in the shared volume case
[pulseaudio] / src / pulsecore / source-output.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5
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.
10
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.
15
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
19 USA.
20 ***/
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29
30 #include <pulse/utf8.h>
31 #include <pulse/xmalloc.h>
32 #include <pulse/util.h>
33 #include <pulse/internal.h>
34
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>
40
41 #include "source-output.h"
42
43 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
44
45 PA_DEFINE_PUBLIC_CLASS(pa_source_output, pa_msgobject);
46
47 static void source_output_free(pa_object* mo);
48 static void set_real_ratio(pa_source_output *o, const pa_cvolume *v);
49
50 pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data) {
51 pa_assert(data);
52
53 pa_zero(*data);
54 data->resample_method = PA_RESAMPLER_INVALID;
55 data->proplist = pa_proplist_new();
56 data->volume_writable = TRUE;
57
58 return data;
59 }
60
61 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec) {
62 pa_assert(data);
63
64 if ((data->sample_spec_is_set = !!spec))
65 data->sample_spec = *spec;
66 }
67
68 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map) {
69 pa_assert(data);
70
71 if ((data->channel_map_is_set = !!map))
72 data->channel_map = *map;
73 }
74
75 pa_bool_t pa_source_output_new_data_is_passthrough(pa_source_output_new_data *data) {
76 pa_assert(data);
77
78 if (PA_LIKELY(data->format) && PA_UNLIKELY(!pa_format_info_is_pcm(data->format)))
79 return TRUE;
80
81 if (PA_UNLIKELY(data->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
82 return TRUE;
83
84 return FALSE;
85 }
86
87 void pa_source_output_new_data_set_volume(pa_source_output_new_data *data, const pa_cvolume *volume) {
88 pa_assert(data);
89 pa_assert(data->volume_writable);
90
91 if ((data->volume_is_set = !!volume))
92 data->volume = *volume;
93 }
94
95 void pa_source_output_new_data_apply_volume_factor(pa_source_output_new_data *data, const pa_cvolume *volume_factor) {
96 pa_assert(data);
97 pa_assert(volume_factor);
98
99 if (data->volume_factor_is_set)
100 pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
101 else {
102 data->volume_factor_is_set = TRUE;
103 data->volume_factor = *volume_factor;
104 }
105 }
106
107 void pa_source_output_new_data_apply_volume_factor_source(pa_source_output_new_data *data, const pa_cvolume *volume_factor) {
108 pa_assert(data);
109 pa_assert(volume_factor);
110
111 if (data->volume_factor_source_is_set)
112 pa_sw_cvolume_multiply(&data->volume_factor_source, &data->volume_factor_source, volume_factor);
113 else {
114 data->volume_factor_source_is_set = TRUE;
115 data->volume_factor_source = *volume_factor;
116 }
117 }
118
119 void pa_source_output_new_data_set_muted(pa_source_output_new_data *data, pa_bool_t mute) {
120 pa_assert(data);
121
122 data->muted_is_set = TRUE;
123 data->muted = !!mute;
124 }
125
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;
129
130 pa_assert(data);
131 pa_assert(s);
132
133 if (!data->req_formats) {
134 /* We're not working with the extended API */
135 data->source = s;
136 data->save_source = save;
137 } else {
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);
140
141 if (formats && !pa_idxset_isempty(formats)) {
142 /* Source supports at least one of the requested formats */
143 data->source = s;
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;
148 } else {
149 /* Source doesn't support any of the formats requested by the client */
150 if (formats)
151 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
152 ret = FALSE;
153 }
154 }
155
156 return ret;
157 }
158
159 pa_bool_t pa_source_output_new_data_set_formats(pa_source_output_new_data *data, pa_idxset *formats) {
160 pa_assert(data);
161 pa_assert(formats);
162
163 if (data->req_formats)
164 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
165
166 data->req_formats = formats;
167
168 if (data->source) {
169 /* Trigger format negotiation */
170 return pa_source_output_new_data_set_source(data, data->source, data->save_source);
171 }
172
173 return TRUE;
174 }
175
176 void pa_source_output_new_data_done(pa_source_output_new_data *data) {
177 pa_assert(data);
178
179 if (data->req_formats)
180 pa_idxset_free(data->req_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
181
182 if (data->nego_formats)
183 pa_idxset_free(data->nego_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
184
185 if (data->format)
186 pa_format_info_free(data->format);
187
188 pa_proplist_free(data->proplist);
189 }
190
191 /* Called from main context */
192 static void reset_callbacks(pa_source_output *o) {
193 pa_assert(o);
194
195 o->push = NULL;
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;
201 o->attach = NULL;
202 o->detach = NULL;
203 o->suspend = NULL;
204 o->suspend_within_thread = NULL;
205 o->moving = NULL;
206 o->kill = 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;
213 }
214
215 /* Called from main context */
216 int pa_source_output_new(
217 pa_source_output**_o,
218 pa_core *core,
219 pa_source_output_new_data *data) {
220
221 pa_source_output *o;
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;
225 int r;
226 char *pt;
227 pa_sample_spec ss;
228 pa_channel_map map;
229
230 pa_assert(_o);
231 pa_assert(core);
232 pa_assert(data);
233 pa_assert_ctl_context();
234
235 if (data->client)
236 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
237
238 if (data->destination_source && (data->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER))
239 data->volume_writable = FALSE;
240
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, &data->channel_map);
247 pa_idxset_put(tmp, f, NULL);
248 pa_source_output_new_data_set_formats(data, tmp);
249 }
250
251 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
252 return r;
253
254 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
255
256 if (!data->source) {
257 pa_source *source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE);
258 pa_return_val_if_fail(source, -PA_ERR_NOENTITY);
259 pa_source_output_new_data_set_source(data, source, FALSE);
260 }
261
262 /* Routing's done, we have a source. Now let's fix the format and set up the
263 * sample spec */
264
265 /* If something didn't pick a format for us, pick the top-most format since
266 * we assume this is sorted in priority order */
267 if (!data->format && data->nego_formats && !pa_idxset_isempty(data->nego_formats))
268 data->format = pa_format_info_copy(pa_idxset_first(data->nego_formats, NULL));
269
270 pa_return_val_if_fail(data->format, -PA_ERR_NOTSUPPORTED);
271
272 /* Now populate the sample spec and format according to the final
273 * format that we've negotiated */
274 if (PA_LIKELY(data->format->encoding == PA_ENCODING_PCM)) {
275 pa_return_val_if_fail(pa_format_info_to_sample_spec(data->format, &ss, &map), -PA_ERR_INVALID);
276 pa_source_output_new_data_set_sample_spec(data, &ss);
277 if (pa_channel_map_valid(&map))
278 pa_source_output_new_data_set_channel_map(data, &map);
279 } else {
280 pa_return_val_if_fail(pa_format_info_to_sample_spec_fake(data->format, &ss), -PA_ERR_INVALID);
281 pa_source_output_new_data_set_sample_spec(data, &ss);
282 }
283
284 pa_return_val_if_fail(PA_SOURCE_IS_LINKED(pa_source_get_state(data->source)), -PA_ERR_BADSTATE);
285 pa_return_val_if_fail(!data->direct_on_input || data->direct_on_input->sink == data->source->monitor_of, -PA_ERR_INVALID);
286
287 if (!data->sample_spec_is_set)
288 data->sample_spec = data->source->sample_spec;
289
290 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
291
292 if (!data->channel_map_is_set) {
293 if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
294 data->channel_map = data->source->channel_map;
295 else
296 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
297 }
298
299 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
300
301 /* Don't restore (or save) stream volume for passthrough streams and
302 * prevent attenuation/gain */
303 if (pa_source_output_new_data_is_passthrough(data)) {
304 data->volume_is_set = TRUE;
305 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
306 data->volume_is_absolute = TRUE;
307 data->save_volume = FALSE;
308 }
309
310 if (!data->volume_is_set) {
311 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
312 data->volume_is_absolute = FALSE;
313 data->save_volume = FALSE;
314 }
315
316 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
317
318 if (!data->volume_factor_is_set)
319 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
320
321 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
322
323 if (!data->volume_factor_source_is_set)
324 pa_cvolume_reset(&data->volume_factor_source, data->source->sample_spec.channels);
325
326 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_source, &data->source->sample_spec), -PA_ERR_INVALID);
327
328 if (!data->muted_is_set)
329 data->muted = FALSE;
330
331 if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
332 data->sample_spec.format = data->source->sample_spec.format;
333
334 if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE)
335 data->sample_spec.rate = data->source->sample_spec.rate;
336
337 original_cm = data->channel_map;
338
339 if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
340 data->sample_spec.channels = data->source->sample_spec.channels;
341 data->channel_map = data->source->channel_map;
342 }
343
344 pa_assert(pa_sample_spec_valid(&data->sample_spec));
345 pa_assert(pa_channel_map_valid(&data->channel_map));
346
347 /* Due to the fixing of the sample spec the volume might not match anymore */
348 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
349
350 if (data->resample_method == PA_RESAMPLER_INVALID)
351 data->resample_method = core->resample_method;
352
353 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
354
355 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
356 return r;
357
358 if ((data->flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) &&
359 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
360 pa_log("Failed to create source output: source is suspended.");
361 return -PA_ERR_BADSTATE;
362 }
363
364 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
365 pa_log("Failed to create source output: too many outputs per source.");
366 return -PA_ERR_TOOLARGE;
367 }
368
369 if ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
370 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
371 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
372
373 if (!pa_source_output_new_data_is_passthrough(data)) /* no resampler for passthrough content */
374 if (!(resampler = pa_resampler_new(
375 core->mempool,
376 &data->source->sample_spec, &data->source->channel_map,
377 &data->sample_spec, &data->channel_map,
378 data->resample_method,
379 ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
380 ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
381 (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
382 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
383 pa_log_warn("Unsupported resampling operation.");
384 return -PA_ERR_NOTSUPPORTED;
385 }
386 }
387
388 o = pa_msgobject_new(pa_source_output);
389 o->parent.parent.free = source_output_free;
390 o->parent.process_msg = pa_source_output_process_msg;
391
392 o->core = core;
393 o->state = PA_SOURCE_OUTPUT_INIT;
394 o->flags = data->flags;
395 o->proplist = pa_proplist_copy(data->proplist);
396 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
397 o->module = data->module;
398 o->source = data->source;
399 o->destination_source = data->destination_source;
400 o->client = data->client;
401
402 o->requested_resample_method = data->resample_method;
403 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
404 o->sample_spec = data->sample_spec;
405 o->channel_map = data->channel_map;
406 o->format = pa_format_info_copy(data->format);
407
408 if (!data->volume_is_absolute && pa_source_flat_volume_enabled(o->source)) {
409 pa_cvolume remapped;
410
411 /* When the 'absolute' bool is not set then we'll treat the volume
412 * as relative to the source volume even in flat volume mode */
413 remapped = data->source->reference_volume;
414 pa_cvolume_remap(&remapped, &data->source->channel_map, &data->channel_map);
415 pa_sw_cvolume_multiply(&o->volume, &data->volume, &remapped);
416 } else
417 o->volume = data->volume;
418
419 o->volume_factor = data->volume_factor;
420 o->volume_factor_source = data->volume_factor_source;
421 o->real_ratio = o->reference_ratio = data->volume;
422 pa_cvolume_reset(&o->soft_volume, o->sample_spec.channels);
423 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
424 o->volume_writable = data->volume_writable;
425 o->save_volume = data->save_volume;
426 o->save_source = data->save_source;
427 o->save_muted = data->save_muted;
428
429 o->muted = data->muted;
430
431 o->direct_on_input = data->direct_on_input;
432
433 reset_callbacks(o);
434 o->userdata = NULL;
435
436 o->thread_info.state = o->state;
437 o->thread_info.attached = FALSE;
438 o->thread_info.sample_spec = o->sample_spec;
439 o->thread_info.resampler = resampler;
440 o->thread_info.soft_volume = o->soft_volume;
441 o->thread_info.muted = o->muted;
442 o->thread_info.requested_source_latency = (pa_usec_t) -1;
443 o->thread_info.direct_on_input = o->direct_on_input;
444
445 o->thread_info.delay_memblockq = pa_memblockq_new(
446 0,
447 MEMBLOCKQ_MAXLENGTH,
448 0,
449 pa_frame_size(&o->source->sample_spec),
450 0,
451 1,
452 0,
453 &o->source->silence);
454
455 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
456 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
457
458 if (o->client)
459 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
460
461 if (o->direct_on_input)
462 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
463
464 pt = pa_proplist_to_string_sep(o->proplist, "\n ");
465 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
466 o->index,
467 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
468 o->source->name,
469 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
470 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map),
471 pt);
472 pa_xfree(pt);
473
474 /* Don't forget to call pa_source_output_put! */
475
476 *_o = o;
477 return 0;
478 }
479
480 /* Called from main context */
481 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
482 pa_assert(o);
483 pa_assert_ctl_context();
484
485 if (!o->source)
486 return;
487
488 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
489 pa_assert_se(o->source->n_corked -- >= 1);
490 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
491 o->source->n_corked++;
492 }
493
494 /* Called from main context */
495 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
496
497 pa_assert(o);
498 pa_assert_ctl_context();
499
500 if (o->state == state)
501 return;
502
503 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);
504
505 update_n_corked(o, state);
506 o->state = state;
507
508 if (state != PA_SOURCE_OUTPUT_UNLINKED) {
509 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
510
511 if (PA_SOURCE_OUTPUT_IS_LINKED(state))
512 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
513 }
514
515 pa_source_update_status(o->source);
516 }
517
518 /* Called from main context */
519 void pa_source_output_unlink(pa_source_output*o) {
520 pa_bool_t linked;
521 pa_assert(o);
522 pa_assert_ctl_context();
523
524 /* See pa_sink_unlink() for a couple of comments how this function
525 * works */
526
527 pa_source_output_ref(o);
528
529 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
530
531 if (linked)
532 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
533
534 if (o->direct_on_input)
535 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
536
537 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
538
539 if (o->source)
540 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
541 pa_source_output_unref(o);
542
543 if (o->client)
544 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
545
546 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
547 o->state = PA_SOURCE_OUTPUT_UNLINKED;
548
549 if (linked && o->source) {
550 if (pa_source_output_is_passthrough(o))
551 pa_source_leave_passthrough(o->source);
552
553 /* We might need to update the source's volume if we are in flat volume mode. */
554 if (pa_source_flat_volume_enabled(o->source))
555 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
556
557 if (o->source->asyncmsgq)
558 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
559 }
560
561 reset_callbacks(o);
562
563 if (linked) {
564 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
565 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
566 }
567
568 if (o->source) {
569 pa_source_update_status(o->source);
570 o->source = NULL;
571 }
572
573 pa_core_maybe_vacuum(o->core);
574
575 pa_source_output_unref(o);
576 }
577
578 /* Called from main context */
579 static void source_output_free(pa_object* mo) {
580 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
581
582 pa_assert(o);
583 pa_assert_ctl_context();
584 pa_assert(pa_source_output_refcnt(o) == 0);
585
586 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
587 pa_source_output_unlink(o);
588
589 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
590
591 if (o->thread_info.delay_memblockq)
592 pa_memblockq_free(o->thread_info.delay_memblockq);
593
594 if (o->thread_info.resampler)
595 pa_resampler_free(o->thread_info.resampler);
596
597 if (o->format)
598 pa_format_info_free(o->format);
599
600 if (o->proplist)
601 pa_proplist_free(o->proplist);
602
603 pa_xfree(o->driver);
604 pa_xfree(o);
605 }
606
607 /* Called from main context */
608 void pa_source_output_put(pa_source_output *o) {
609 pa_source_output_state_t state;
610
611 pa_source_output_assert_ref(o);
612 pa_assert_ctl_context();
613
614 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
615
616 /* The following fields must be initialized properly */
617 pa_assert(o->push);
618 pa_assert(o->kill);
619
620 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
621
622 update_n_corked(o, state);
623 o->state = state;
624
625 /* We might need to update the source's volume if we are in flat volume mode. */
626 if (pa_source_flat_volume_enabled(o->source))
627 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
628 else {
629 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
630 pa_assert(pa_cvolume_is_norm(&o->volume));
631 pa_assert(pa_cvolume_is_norm(&o->reference_ratio));
632 }
633
634 set_real_ratio(o, &o->volume);
635 }
636
637 if (pa_source_output_is_passthrough(o))
638 pa_source_enter_passthrough(o->source);
639
640 o->thread_info.soft_volume = o->soft_volume;
641 o->thread_info.muted = o->muted;
642
643 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
644
645 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
646 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
647
648 pa_source_update_status(o->source);
649 }
650
651 /* Called from main context */
652 void pa_source_output_kill(pa_source_output*o) {
653 pa_source_output_assert_ref(o);
654 pa_assert_ctl_context();
655 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
656
657 o->kill(o);
658 }
659
660 /* Called from main context */
661 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
662 pa_usec_t r[2] = { 0, 0 };
663
664 pa_source_output_assert_ref(o);
665 pa_assert_ctl_context();
666 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
667
668 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
669
670 if (o->get_latency)
671 r[0] += o->get_latency(o);
672
673 if (source_latency)
674 *source_latency = r[1];
675
676 return r[0];
677 }
678
679 /* Called from thread context */
680 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
681 pa_bool_t need_volume_factor_source;
682 pa_bool_t volume_is_norm;
683 size_t length;
684 size_t limit, mbs = 0;
685
686 pa_source_output_assert_ref(o);
687 pa_source_output_assert_io_context(o);
688 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
689 pa_assert(chunk);
690 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
691
692 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
693 return;
694
695 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
696
697 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
698 pa_log_debug("Delay queue overflow!");
699 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
700 }
701
702 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
703
704 volume_is_norm = pa_cvolume_is_norm(&o->thread_info.soft_volume) && !o->thread_info.muted;
705 need_volume_factor_source = !pa_cvolume_is_norm(&o->volume_factor_source);
706
707 if (limit > 0 && o->source->monitor_of) {
708 pa_usec_t latency;
709 size_t n;
710
711 /* Hmm, check the latency for knowing how much of the buffered
712 * data is actually still unplayed and might hence still
713 * change. This is suboptimal. Ideally we'd have a call like
714 * pa_sink_get_changeable_size() or so that tells us how much
715 * of the queued data is actually still changeable. Hence
716 * FIXME! */
717
718 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
719
720 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
721
722 if (n < limit)
723 limit = n;
724 }
725
726 /* Implement the delay queue */
727 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
728 pa_memchunk qchunk;
729 pa_bool_t nvfs = need_volume_factor_source;
730
731 length -= limit;
732
733 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
734
735 if (qchunk.length > length)
736 qchunk.length = length;
737
738 pa_assert(qchunk.length > 0);
739
740 /* It might be necessary to adjust the volume here */
741 if (!volume_is_norm) {
742 pa_memchunk_make_writable(&qchunk, 0);
743
744 if (o->thread_info.muted) {
745 pa_silence_memchunk(&qchunk, &o->source->sample_spec);
746 nvfs = FALSE;
747
748 } else if (!o->thread_info.resampler && nvfs) {
749 pa_cvolume v;
750
751 /* If we don't need a resampler we can merge the
752 * post and the pre volume adjustment into one */
753
754 pa_sw_cvolume_multiply(&v, &o->thread_info.soft_volume, &o->volume_factor_source);
755 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &v);
756 nvfs = FALSE;
757
758 } else
759 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &o->thread_info.soft_volume);
760 }
761
762 if (!o->thread_info.resampler) {
763 if (nvfs) {
764 pa_memchunk_make_writable(&qchunk, 0);
765 pa_volume_memchunk(&qchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
766 }
767
768 o->push(o, &qchunk);
769 } else {
770 pa_memchunk rchunk;
771
772 if (mbs == 0)
773 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
774
775 if (qchunk.length > mbs)
776 qchunk.length = mbs;
777
778 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
779
780 if (rchunk.length > 0) {
781 if (nvfs) {
782 pa_memchunk_make_writable(&rchunk, 0);
783 pa_volume_memchunk(&rchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
784 }
785
786 o->push(o, &rchunk);
787 }
788
789 if (rchunk.memblock)
790 pa_memblock_unref(rchunk.memblock);
791 }
792
793 pa_memblock_unref(qchunk.memblock);
794 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
795 }
796 }
797
798 /* Called from thread context */
799 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
800
801 pa_source_output_assert_ref(o);
802 pa_source_output_assert_io_context(o);
803 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
804 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
805
806 if (nbytes <= 0)
807 return;
808
809 if (o->process_rewind) {
810 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
811
812 if (o->thread_info.resampler)
813 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
814
815 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
816
817 if (nbytes > 0)
818 o->process_rewind(o, nbytes);
819
820 if (o->thread_info.resampler)
821 pa_resampler_reset(o->thread_info.resampler);
822
823 } else
824 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
825 }
826
827 /* Called from thread context */
828 size_t pa_source_output_get_max_rewind(pa_source_output *o) {
829 pa_source_output_assert_ref(o);
830 pa_source_output_assert_io_context(o);
831
832 return o->thread_info.resampler ? pa_resampler_request(o->thread_info.resampler, o->source->thread_info.max_rewind) : o->source->thread_info.max_rewind;
833 }
834
835 /* Called from thread context */
836 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
837 pa_source_output_assert_ref(o);
838 pa_source_output_assert_io_context(o);
839 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
840 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
841
842 if (o->update_max_rewind)
843 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
844 }
845
846 /* Called from thread context */
847 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
848 pa_source_output_assert_ref(o);
849 pa_source_output_assert_io_context(o);
850
851 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
852 usec = o->source->thread_info.fixed_latency;
853
854 if (usec != (pa_usec_t) -1)
855 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
856
857 o->thread_info.requested_source_latency = usec;
858 pa_source_invalidate_requested_latency(o->source, TRUE);
859
860 return usec;
861 }
862
863 /* Called from main context */
864 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
865 pa_source_output_assert_ref(o);
866 pa_assert_ctl_context();
867
868 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
869 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
870 return usec;
871 }
872
873 /* If this source output is not realized yet or is being moved, we
874 * have to touch the thread info data directly */
875
876 if (o->source) {
877 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
878 usec = pa_source_get_fixed_latency(o->source);
879
880 if (usec != (pa_usec_t) -1) {
881 pa_usec_t min_latency, max_latency;
882 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
883 usec = PA_CLAMP(usec, min_latency, max_latency);
884 }
885 }
886
887 o->thread_info.requested_source_latency = usec;
888
889 return usec;
890 }
891
892 /* Called from main context */
893 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
894 pa_source_output_assert_ref(o);
895 pa_assert_ctl_context();
896
897 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
898 pa_usec_t usec = 0;
899 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
900 return usec;
901 }
902
903 /* If this source output is not realized yet or is being moved, we
904 * have to touch the thread info data directly */
905
906 return o->thread_info.requested_source_latency;
907 }
908
909 /* Called from main context */
910 void pa_source_output_set_volume(pa_source_output *o, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
911 pa_cvolume v;
912
913 pa_source_output_assert_ref(o);
914 pa_assert_ctl_context();
915 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
916 pa_assert(volume);
917 pa_assert(pa_cvolume_valid(volume));
918 pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &o->sample_spec));
919 pa_assert(o->volume_writable);
920
921 if (!absolute && pa_source_flat_volume_enabled(o->source)) {
922 v = o->source->reference_volume;
923 pa_cvolume_remap(&v, &o->source->channel_map, &o->channel_map);
924
925 if (pa_cvolume_compatible(volume, &o->sample_spec))
926 volume = pa_sw_cvolume_multiply(&v, &v, volume);
927 else
928 volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
929 } else {
930 if (!pa_cvolume_compatible(volume, &o->sample_spec)) {
931 v = o->volume;
932 volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
933 }
934 }
935
936 if (pa_cvolume_equal(volume, &o->volume)) {
937 o->save_volume = o->save_volume || save;
938 return;
939 }
940
941 o->volume = *volume;
942 o->save_volume = save;
943
944 if (pa_source_flat_volume_enabled(o->source)) {
945 /* We are in flat volume mode, so let's update all source input
946 * volumes and update the flat volume of the source */
947
948 pa_source_set_volume(o->source, NULL, TRUE, save);
949
950 } else {
951 /* OK, we are in normal volume mode. The volume only affects
952 * ourselves */
953 set_real_ratio(o, volume);
954
955 /* Copy the new soft_volume to the thread_info struct */
956 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
957 }
958
959 /* The volume changed, let's tell people so */
960 if (o->volume_changed)
961 o->volume_changed(o);
962
963 /* The virtual volume changed, let's tell people so */
964 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
965 }
966
967 /* Called from main context */
968 static void set_real_ratio(pa_source_output *o, const pa_cvolume *v) {
969 pa_source_output_assert_ref(o);
970 pa_assert_ctl_context();
971 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
972 pa_assert(!v || pa_cvolume_compatible(v, &o->sample_spec));
973
974 /* This basically calculates:
975 *
976 * o->real_ratio := v
977 * o->soft_volume := o->real_ratio * o->volume_factor */
978
979 if (v)
980 o->real_ratio = *v;
981 else
982 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
983
984 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
985 /* We don't copy the data to the thread_info data. That's left for someone else to do */
986 }
987
988 /* Called from main or I/O context */
989 pa_bool_t pa_source_output_is_passthrough(pa_source_output *o) {
990 pa_source_output_assert_ref(o);
991
992 if (PA_UNLIKELY(!pa_format_info_is_pcm(o->format)))
993 return TRUE;
994
995 if (PA_UNLIKELY(o->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
996 return TRUE;
997
998 return FALSE;
999 }
1000
1001 /* Called from main context */
1002 pa_bool_t pa_source_output_is_volume_readable(pa_source_output *o) {
1003 pa_source_output_assert_ref(o);
1004 pa_assert_ctl_context();
1005
1006 return !pa_source_output_is_passthrough(o);
1007 }
1008
1009 /* Called from main context */
1010 pa_cvolume *pa_source_output_get_volume(pa_source_output *o, pa_cvolume *volume, pa_bool_t absolute) {
1011 pa_source_output_assert_ref(o);
1012 pa_assert_ctl_context();
1013 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1014 pa_assert(pa_source_output_is_volume_readable(o));
1015
1016 if (absolute || !pa_source_flat_volume_enabled(o->source))
1017 *volume = o->volume;
1018 else
1019 *volume = o->reference_ratio;
1020
1021 return volume;
1022 }
1023
1024 /* Called from main context */
1025 void pa_source_output_set_mute(pa_source_output *o, pa_bool_t mute, pa_bool_t save) {
1026 pa_source_output_assert_ref(o);
1027 pa_assert_ctl_context();
1028 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1029
1030 if (!o->muted == !mute) {
1031 o->save_muted = o->save_muted || mute;
1032 return;
1033 }
1034
1035 o->muted = mute;
1036 o->save_muted = save;
1037
1038 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
1039
1040 /* The mute status changed, let's tell people so */
1041 if (o->mute_changed)
1042 o->mute_changed(o);
1043
1044 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1045 }
1046
1047 /* Called from main context */
1048 pa_bool_t pa_source_output_get_mute(pa_source_output *o) {
1049 pa_source_output_assert_ref(o);
1050 pa_assert_ctl_context();
1051 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1052
1053 return o->muted;
1054 }
1055
1056 /* Called from main thread */
1057 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
1058 pa_source_output_assert_ref(o);
1059 pa_assert_ctl_context();
1060
1061 if (p)
1062 pa_proplist_update(o->proplist, mode, p);
1063
1064 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1065 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1066 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1067 }
1068 }
1069
1070 /* Called from main context */
1071 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
1072 pa_source_output_assert_ref(o);
1073 pa_assert_ctl_context();
1074 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1075
1076 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
1077 }
1078
1079 /* Called from main context */
1080 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
1081 pa_source_output_assert_ref(o);
1082 pa_assert_ctl_context();
1083 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1084 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
1085
1086 if (o->sample_spec.rate == rate)
1087 return 0;
1088
1089 o->sample_spec.rate = rate;
1090
1091 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1092
1093 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1094 return 0;
1095 }
1096
1097 /* Called from main context */
1098 void pa_source_output_set_name(pa_source_output *o, const char *name) {
1099 const char *old;
1100 pa_assert_ctl_context();
1101 pa_source_output_assert_ref(o);
1102
1103 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
1104 return;
1105
1106 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
1107
1108 if (old && name && !strcmp(old, name))
1109 return;
1110
1111 if (name)
1112 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
1113 else
1114 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
1115
1116 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1117 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1118 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1119 }
1120 }
1121
1122 /* Called from main context */
1123 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
1124 pa_source_output_assert_ref(o);
1125 pa_assert_ctl_context();
1126
1127 return o->actual_resample_method;
1128 }
1129
1130 /* Called from main context */
1131 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
1132 pa_source_output_assert_ref(o);
1133 pa_assert_ctl_context();
1134 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1135
1136 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
1137 return FALSE;
1138
1139 if (o->direct_on_input)
1140 return FALSE;
1141
1142 return TRUE;
1143 }
1144
1145 /* Called from main context */
1146 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
1147 pa_source_output_assert_ref(o);
1148 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1149 pa_source_assert_ref(dest);
1150
1151 if (dest == o->source)
1152 return TRUE;
1153
1154 if (!pa_source_output_may_move(o))
1155 return FALSE;
1156
1157 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
1158 pa_log_warn("Failed to move source output: too many outputs per source.");
1159 return FALSE;
1160 }
1161
1162 if (o->may_move_to)
1163 if (!o->may_move_to(o, dest))
1164 return FALSE;
1165
1166 return TRUE;
1167 }
1168
1169 /* Called from main context */
1170 int pa_source_output_start_move(pa_source_output *o) {
1171 pa_source *origin;
1172 int r;
1173
1174 pa_source_output_assert_ref(o);
1175 pa_assert_ctl_context();
1176 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1177 pa_assert(o->source);
1178
1179 if (!pa_source_output_may_move(o))
1180 return -PA_ERR_NOTSUPPORTED;
1181
1182 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
1183 return r;
1184
1185 origin = o->source;
1186
1187 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
1188
1189 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1190 pa_assert_se(origin->n_corked-- >= 1);
1191
1192 if (pa_source_output_is_passthrough(o))
1193 pa_source_leave_passthrough(o->source);
1194
1195 if (pa_source_flat_volume_enabled(o->source))
1196 /* We might need to update the source's volume if we are in flat
1197 * volume mode. */
1198 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
1199
1200 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
1201
1202 pa_source_update_status(o->source);
1203 o->source = NULL;
1204
1205 pa_source_output_unref(o);
1206
1207 return 0;
1208 }
1209
1210 /* Called from main context. If it has an origin source that uses volume sharing,
1211 * then also the origin source and all streams connected to it need to update
1212 * their volume - this function does all that by using recursion. */
1213 static void update_volume_due_to_moving(pa_source_output *o, pa_source *dest) {
1214 pa_cvolume old_volume;
1215
1216 pa_assert(o);
1217 pa_assert(dest);
1218 pa_assert(o->source); /* The destination source should already be set. */
1219
1220 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1221 pa_source *root_source;
1222 pa_source_output *destination_source_output;
1223 uint32_t idx;
1224
1225 root_source = pa_source_get_master(o->source);
1226
1227 if (PA_UNLIKELY(!root_source))
1228 return;
1229
1230 if (pa_source_flat_volume_enabled(o->source)) {
1231 /* Ok, so the origin source uses volume sharing, and flat volume is
1232 * enabled. The volume will have to be updated as follows:
1233 *
1234 * o->volume := o->source->real_volume
1235 * (handled later by pa_source_set_volume)
1236 * o->reference_ratio := o->volume / o->source->reference_volume
1237 * (handled later by pa_source_set_volume)
1238 * o->real_ratio stays unchanged
1239 * (streams whose origin source uses volume sharing should
1240 * always have real_ratio of 0 dB)
1241 * o->soft_volume stays unchanged
1242 * (streams whose origin source uses volume sharing should
1243 * always have volume_factor as soft_volume, so no change
1244 * should be needed) */
1245
1246 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1247 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1248
1249 /* Notifications will be sent by pa_source_set_volume(). */
1250
1251 } else {
1252 /* Ok, so the origin source uses volume sharing, and flat volume is
1253 * disabled. The volume will have to be updated as follows:
1254 *
1255 * o->volume := 0 dB
1256 * o->reference_ratio := 0 dB
1257 * o->real_ratio stays unchanged
1258 * (streams whose origin source uses volume sharing should
1259 * always have real_ratio of 0 dB)
1260 * o->soft_volume stays unchanged
1261 * (streams whose origin source uses volume sharing should
1262 * always have volume_factor as soft_volume, so no change
1263 * should be needed) */
1264
1265 old_volume = o->volume;
1266 pa_cvolume_reset(&o->volume, o->volume.channels);
1267 pa_cvolume_reset(&o->reference_ratio, o->reference_ratio.channels);
1268 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1269 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1270
1271 /* Notify others about the changed source output volume. */
1272 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1273 if (o->volume_changed)
1274 o->volume_changed(o);
1275
1276 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1277 }
1278 }
1279
1280 /* Additionally, the origin source volume needs updating:
1281 *
1282 * o->destination_source->reference_volume := root_source->reference_volume
1283 * o->destination_source->real_volume := root_source->real_volume
1284 * o->destination_source->soft_volume stays unchanged
1285 * (sources that use volume sharing should always have
1286 * soft_volume of 0 dB) */
1287
1288 old_volume = o->destination_source->reference_volume;
1289
1290 o->destination_source->reference_volume = root_source->reference_volume;
1291 pa_cvolume_remap(&o->destination_source->reference_volume, &root_source->channel_map, &o->destination_source->channel_map);
1292
1293 o->destination_source->real_volume = root_source->real_volume;
1294 pa_cvolume_remap(&o->destination_source->real_volume, &root_source->channel_map, &o->destination_source->channel_map);
1295
1296 pa_assert(pa_cvolume_is_norm(&o->destination_source->soft_volume));
1297
1298 /* Notify others about the changed source volume. If you wonder whether
1299 * o->destination_source->set_volume() should be called somewhere, that's not
1300 * the case, because sources that use volume sharing shouldn't have any
1301 * internal volume that set_volume() would update. If you wonder
1302 * whether the thread_info variables should be synced, yes, they
1303 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1304 * handler. */
1305 if (!pa_cvolume_equal(&o->destination_source->reference_volume, &old_volume))
1306 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, o->destination_source->index);
1307
1308 /* Recursively update origin source outputs. */
1309 PA_IDXSET_FOREACH(destination_source_output, o->destination_source->outputs, idx)
1310 update_volume_due_to_moving(destination_source_output, dest);
1311
1312 } else {
1313 old_volume = o->volume;
1314
1315 if (pa_source_flat_volume_enabled(o->source)) {
1316 /* Ok, so this is a regular stream, and flat volume is enabled. The
1317 * volume will have to be updated as follows:
1318 *
1319 * o->volume := o->reference_ratio * o->source->reference_volume
1320 * o->reference_ratio stays unchanged
1321 * o->real_ratio := o->volume / o->source->real_volume
1322 * (handled later by pa_source_set_volume)
1323 * o->soft_volume := o->real_ratio * o->volume_factor
1324 * (handled later by pa_source_set_volume) */
1325
1326 o->volume = o->source->reference_volume;
1327 pa_cvolume_remap(&o->volume, &o->source->channel_map, &o->channel_map);
1328 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1329
1330 } else {
1331 /* Ok, so this is a regular stream, and flat volume is disabled.
1332 * The volume will have to be updated as follows:
1333 *
1334 * o->volume := o->reference_ratio
1335 * o->reference_ratio stays unchanged
1336 * o->real_ratio := o->reference_ratio
1337 * o->soft_volume := o->real_ratio * o->volume_factor */
1338
1339 o->volume = o->reference_ratio;
1340 o->real_ratio = o->reference_ratio;
1341 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
1342 }
1343
1344 /* Notify others about the changed source output volume. */
1345 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1346 /* XXX: In case o->source has flat volume enabled, then real_ratio
1347 * and soft_volume are not updated yet. Let's hope that the
1348 * callback implementation doesn't care about those variables... */
1349 if (o->volume_changed)
1350 o->volume_changed(o);
1351
1352 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1353 }
1354 }
1355
1356 /* If o->source == dest, then recursion has finished, and we can finally call
1357 * pa_source_set_volume(), which will do the rest of the updates. */
1358 if ((o->source == dest) && pa_source_flat_volume_enabled(o->source))
1359 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
1360 }
1361
1362 /* Called from main context */
1363 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1364 pa_resampler *new_resampler;
1365
1366 pa_source_output_assert_ref(o);
1367 pa_assert_ctl_context();
1368 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1369 pa_assert(!o->source);
1370 pa_source_assert_ref(dest);
1371
1372 if (!pa_source_output_may_move_to(o, dest))
1373 return -PA_ERR_NOTSUPPORTED;
1374
1375 if (pa_source_output_is_passthrough(o) && !pa_source_check_format(dest, o->format)) {
1376 pa_proplist *p = pa_proplist_new();
1377 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1378 /* Tell the client what device we want to be on if it is going to
1379 * reconnect */
1380 pa_proplist_sets(p, "device", dest->name);
1381 pa_source_output_send_event(o, PA_STREAM_EVENT_FORMAT_LOST, p);
1382 pa_proplist_free(p);
1383 return -PA_ERR_NOTSUPPORTED;
1384 }
1385
1386 if (o->thread_info.resampler &&
1387 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
1388 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
1389
1390 /* Try to reuse the old resampler if possible */
1391 new_resampler = o->thread_info.resampler;
1392
1393 else if (!pa_source_output_is_passthrough(o) &&
1394 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
1395 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
1396 !pa_channel_map_equal(&o->channel_map, &dest->channel_map))) {
1397
1398 /* Okay, we need a new resampler for the new source */
1399
1400 if (!(new_resampler = pa_resampler_new(
1401 o->core->mempool,
1402 &dest->sample_spec, &dest->channel_map,
1403 &o->sample_spec, &o->channel_map,
1404 o->requested_resample_method,
1405 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1406 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1407 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
1408 pa_log_warn("Unsupported resampling operation.");
1409 return -PA_ERR_NOTSUPPORTED;
1410 }
1411 } else
1412 new_resampler = NULL;
1413
1414 if (o->moving)
1415 o->moving(o, dest);
1416
1417 o->source = dest;
1418 o->save_source = save;
1419 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
1420
1421 pa_cvolume_remap(&o->volume_factor_source, &o->channel_map, &o->source->channel_map);
1422
1423 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1424 o->source->n_corked++;
1425
1426 /* Replace resampler */
1427 if (new_resampler != o->thread_info.resampler) {
1428
1429 if (o->thread_info.resampler)
1430 pa_resampler_free(o->thread_info.resampler);
1431 o->thread_info.resampler = new_resampler;
1432
1433 pa_memblockq_free(o->thread_info.delay_memblockq);
1434
1435 o->thread_info.delay_memblockq = pa_memblockq_new(
1436 0,
1437 MEMBLOCKQ_MAXLENGTH,
1438 0,
1439 pa_frame_size(&o->source->sample_spec),
1440 0,
1441 1,
1442 0,
1443 &o->source->silence);
1444 o->actual_resample_method = new_resampler ? pa_resampler_get_method(new_resampler) : PA_RESAMPLER_INVALID;
1445 }
1446
1447 pa_source_update_status(dest);
1448
1449 update_volume_due_to_moving(o, dest);
1450
1451 if (pa_source_output_is_passthrough(o))
1452 pa_source_enter_passthrough(o->source);
1453
1454 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
1455
1456 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
1457
1458 /* Notify everyone */
1459 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
1460 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1461
1462 return 0;
1463 }
1464
1465 /* Called from main context */
1466 void pa_source_output_fail_move(pa_source_output *o) {
1467
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
1473 /* Check if someone wants this source output? */
1474 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP)
1475 return;
1476
1477 if (o->moving)
1478 o->moving(o, NULL);
1479
1480 pa_source_output_kill(o);
1481 }
1482
1483 /* Called from main context */
1484 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1485 int r;
1486
1487 pa_source_output_assert_ref(o);
1488 pa_assert_ctl_context();
1489 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1490 pa_assert(o->source);
1491 pa_source_assert_ref(dest);
1492
1493 if (dest == o->source)
1494 return 0;
1495
1496 if (!pa_source_output_may_move_to(o, dest))
1497 return -PA_ERR_NOTSUPPORTED;
1498
1499 pa_source_output_ref(o);
1500
1501 if ((r = pa_source_output_start_move(o)) < 0) {
1502 pa_source_output_unref(o);
1503 return r;
1504 }
1505
1506 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
1507 pa_source_output_fail_move(o);
1508 pa_source_output_unref(o);
1509 return r;
1510 }
1511
1512 pa_source_output_unref(o);
1513
1514 return 0;
1515 }
1516
1517 /* Called from IO thread context */
1518 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
1519 pa_source_output_assert_ref(o);
1520 pa_source_output_assert_io_context(o);
1521
1522 if (state == o->thread_info.state)
1523 return;
1524
1525 if (o->state_change)
1526 o->state_change(o, state);
1527
1528 o->thread_info.state = state;
1529 }
1530
1531 /* Called from IO thread context, except when it is not */
1532 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
1533 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
1534 pa_source_output_assert_ref(o);
1535
1536 switch (code) {
1537
1538 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
1539 pa_usec_t *r = userdata;
1540
1541 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
1542 r[1] += pa_source_get_latency_within_thread(o->source);
1543
1544 return 0;
1545 }
1546
1547 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
1548
1549 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1550 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1551 return 0;
1552
1553 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
1554
1555 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
1556
1557 return 0;
1558
1559 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1560 pa_usec_t *usec = userdata;
1561
1562 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
1563
1564 return 0;
1565 }
1566
1567 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1568 pa_usec_t *r = userdata;
1569
1570 *r = o->thread_info.requested_source_latency;
1571 return 0;
1572 }
1573
1574 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME:
1575 if (!pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume)) {
1576 o->thread_info.soft_volume = o->soft_volume;
1577 }
1578 return 0;
1579
1580 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE:
1581 if (o->thread_info.muted != o->muted) {
1582 o->thread_info.muted = o->muted;
1583 }
1584 return 0;
1585 }
1586
1587 return -PA_ERR_NOTIMPLEMENTED;
1588 }
1589
1590 /* Called from main context */
1591 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
1592 pa_proplist *pl = NULL;
1593 pa_source_output_send_event_hook_data hook_data;
1594
1595 pa_source_output_assert_ref(o);
1596 pa_assert_ctl_context();
1597 pa_assert(event);
1598
1599 if (!o->send_event)
1600 return;
1601
1602 if (!data)
1603 data = pl = pa_proplist_new();
1604
1605 hook_data.source_output = o;
1606 hook_data.data = data;
1607 hook_data.event = event;
1608
1609 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
1610 goto finish;
1611
1612 o->send_event(o, event, data);
1613
1614 finish:
1615 if (pl)
1616 pa_proplist_free(pl);
1617 }