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source-output: Fix resampling.
[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 */
302 if (!pa_format_info_is_pcm(data->format)) {
303 data->volume_is_set = FALSE;
304 data->volume_factor_is_set = FALSE;
305 }
306
307 if (!data->volume_is_set) {
308 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
309 data->volume_is_absolute = FALSE;
310 data->save_volume = FALSE;
311 }
312
313 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
314
315 if (!data->volume_factor_is_set)
316 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
317
318 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
319
320 if (!data->volume_factor_source_is_set)
321 pa_cvolume_reset(&data->volume_factor_source, data->source->sample_spec.channels);
322
323 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_source, &data->source->sample_spec), -PA_ERR_INVALID);
324
325 if (!data->muted_is_set)
326 data->muted = FALSE;
327
328 if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
329 data->sample_spec.format = data->source->sample_spec.format;
330
331 if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE)
332 data->sample_spec.rate = data->source->sample_spec.rate;
333
334 original_cm = data->channel_map;
335
336 if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
337 data->sample_spec.channels = data->source->sample_spec.channels;
338 data->channel_map = data->source->channel_map;
339 }
340
341 pa_assert(pa_sample_spec_valid(&data->sample_spec));
342 pa_assert(pa_channel_map_valid(&data->channel_map));
343
344 /* Due to the fixing of the sample spec the volume might not match anymore */
345 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
346
347 if (data->resample_method == PA_RESAMPLER_INVALID)
348 data->resample_method = core->resample_method;
349
350 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
351
352 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
353 return r;
354
355 if ((data->flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) &&
356 pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
357 pa_log("Failed to create source output: source is suspended.");
358 return -PA_ERR_BADSTATE;
359 }
360
361 if (pa_idxset_size(data->source->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
362 pa_log("Failed to create source output: too many outputs per source.");
363 return -PA_ERR_TOOLARGE;
364 }
365
366 if ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
367 !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
368 !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
369
370 if (!pa_source_output_new_data_is_passthrough(data)) /* no resampler for passthrough content */
371 if (!(resampler = pa_resampler_new(
372 core->mempool,
373 &data->source->sample_spec, &data->source->channel_map,
374 &data->sample_spec, &data->channel_map,
375 data->resample_method,
376 ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
377 ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
378 (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
379 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
380 pa_log_warn("Unsupported resampling operation.");
381 return -PA_ERR_NOTSUPPORTED;
382 }
383 }
384
385 o = pa_msgobject_new(pa_source_output);
386 o->parent.parent.free = source_output_free;
387 o->parent.process_msg = pa_source_output_process_msg;
388
389 o->core = core;
390 o->state = PA_SOURCE_OUTPUT_INIT;
391 o->flags = data->flags;
392 o->proplist = pa_proplist_copy(data->proplist);
393 o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
394 o->module = data->module;
395 o->source = data->source;
396 o->destination_source = data->destination_source;
397 o->client = data->client;
398
399 o->requested_resample_method = data->resample_method;
400 o->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
401 o->sample_spec = data->sample_spec;
402 o->channel_map = data->channel_map;
403 o->format = pa_format_info_copy(data->format);
404
405 if (!data->volume_is_absolute && pa_source_flat_volume_enabled(o->source)) {
406 pa_cvolume remapped;
407
408 /* When the 'absolute' bool is not set then we'll treat the volume
409 * as relative to the source volume even in flat volume mode */
410 remapped = data->source->reference_volume;
411 pa_cvolume_remap(&remapped, &data->source->channel_map, &data->channel_map);
412 pa_sw_cvolume_multiply(&o->volume, &data->volume, &remapped);
413 } else
414 o->volume = data->volume;
415
416 o->volume_factor = data->volume_factor;
417 o->volume_factor_source = data->volume_factor_source;
418 o->real_ratio = o->reference_ratio = data->volume;
419 pa_cvolume_reset(&o->soft_volume, o->sample_spec.channels);
420 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
421 o->volume_writable = data->volume_writable;
422 o->save_volume = data->save_volume;
423 o->save_source = data->save_source;
424 o->save_muted = data->save_muted;
425
426 o->muted = data->muted;
427
428 o->direct_on_input = data->direct_on_input;
429
430 reset_callbacks(o);
431 o->userdata = NULL;
432
433 o->thread_info.state = o->state;
434 o->thread_info.attached = FALSE;
435 o->thread_info.sample_spec = o->sample_spec;
436 o->thread_info.resampler = resampler;
437 o->thread_info.soft_volume = o->soft_volume;
438 o->thread_info.muted = o->muted;
439 o->thread_info.requested_source_latency = (pa_usec_t) -1;
440 o->thread_info.direct_on_input = o->direct_on_input;
441
442 o->thread_info.delay_memblockq = pa_memblockq_new(
443 0,
444 MEMBLOCKQ_MAXLENGTH,
445 0,
446 pa_frame_size(&o->source->sample_spec),
447 0,
448 1,
449 0,
450 &o->source->silence);
451
452 pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
453 pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
454
455 if (o->client)
456 pa_assert_se(pa_idxset_put(o->client->source_outputs, o, NULL) >= 0);
457
458 if (o->direct_on_input)
459 pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
460
461 pt = pa_proplist_to_string_sep(o->proplist, "\n ");
462 pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
463 o->index,
464 pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
465 o->source->name,
466 pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
467 pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map),
468 pt);
469 pa_xfree(pt);
470
471 /* Don't forget to call pa_source_output_put! */
472
473 *_o = o;
474 return 0;
475 }
476
477 /* Called from main context */
478 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
479 pa_assert(o);
480 pa_assert_ctl_context();
481
482 if (!o->source)
483 return;
484
485 if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
486 pa_assert_se(o->source->n_corked -- >= 1);
487 else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
488 o->source->n_corked++;
489 }
490
491 /* Called from main context */
492 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
493
494 pa_assert(o);
495 pa_assert_ctl_context();
496
497 if (o->state == state)
498 return;
499
500 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);
501
502 update_n_corked(o, state);
503 o->state = state;
504
505 if (state != PA_SOURCE_OUTPUT_UNLINKED) {
506 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], o);
507
508 if (PA_SOURCE_OUTPUT_IS_LINKED(state))
509 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
510 }
511
512 pa_source_update_status(o->source);
513 }
514
515 /* Called from main context */
516 void pa_source_output_unlink(pa_source_output*o) {
517 pa_bool_t linked;
518 pa_assert(o);
519 pa_assert_ctl_context();
520
521 /* See pa_sink_unlink() for a couple of comments how this function
522 * works */
523
524 pa_source_output_ref(o);
525
526 linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
527
528 if (linked)
529 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
530
531 if (o->direct_on_input)
532 pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
533
534 pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
535
536 if (o->source)
537 if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
538 pa_source_output_unref(o);
539
540 if (o->client)
541 pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
542
543 update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
544 o->state = PA_SOURCE_OUTPUT_UNLINKED;
545
546 if (linked && o->source) {
547 /* We might need to update the source's volume if we are in flat volume mode. */
548 if (pa_source_flat_volume_enabled(o->source))
549 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
550
551 if (o->source->asyncmsgq)
552 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
553 }
554
555 reset_callbacks(o);
556
557 if (linked) {
558 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
559 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
560 }
561
562 if (o->source) {
563 pa_source_update_status(o->source);
564 o->source = NULL;
565 }
566
567 pa_core_maybe_vacuum(o->core);
568
569 pa_source_output_unref(o);
570 }
571
572 /* Called from main context */
573 static void source_output_free(pa_object* mo) {
574 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
575
576 pa_assert(o);
577 pa_assert_ctl_context();
578 pa_assert(pa_source_output_refcnt(o) == 0);
579
580 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
581 pa_source_output_unlink(o);
582
583 pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
584
585 if (o->thread_info.delay_memblockq)
586 pa_memblockq_free(o->thread_info.delay_memblockq);
587
588 if (o->thread_info.resampler)
589 pa_resampler_free(o->thread_info.resampler);
590
591 if (o->format)
592 pa_format_info_free(o->format);
593
594 if (o->proplist)
595 pa_proplist_free(o->proplist);
596
597 pa_xfree(o->driver);
598 pa_xfree(o);
599 }
600
601 /* Called from main context */
602 void pa_source_output_put(pa_source_output *o) {
603 pa_source_output_state_t state;
604
605 pa_source_output_assert_ref(o);
606 pa_assert_ctl_context();
607
608 pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
609
610 /* The following fields must be initialized properly */
611 pa_assert(o->push);
612 pa_assert(o->kill);
613
614 state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
615
616 update_n_corked(o, state);
617 o->state = state;
618
619 /* We might need to update the source's volume if we are in flat volume mode. */
620 if (pa_source_flat_volume_enabled(o->source))
621 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
622 else {
623 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
624 pa_assert(pa_cvolume_is_norm(&o->volume));
625 pa_assert(pa_cvolume_is_norm(&o->reference_ratio));
626 }
627
628 set_real_ratio(o, &o->volume);
629 }
630
631 o->thread_info.soft_volume = o->soft_volume;
632 o->thread_info.muted = o->muted;
633
634 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
635
636 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
637 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
638
639 pa_source_update_status(o->source);
640 }
641
642 /* Called from main context */
643 void pa_source_output_kill(pa_source_output*o) {
644 pa_source_output_assert_ref(o);
645 pa_assert_ctl_context();
646 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
647
648 o->kill(o);
649 }
650
651 /* Called from main context */
652 pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_latency) {
653 pa_usec_t r[2] = { 0, 0 };
654
655 pa_source_output_assert_ref(o);
656 pa_assert_ctl_context();
657 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
658
659 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
660
661 if (o->get_latency)
662 r[0] += o->get_latency(o);
663
664 if (source_latency)
665 *source_latency = r[1];
666
667 return r[0];
668 }
669
670 /* Called from thread context */
671 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
672 pa_bool_t need_volume_factor_source;
673 pa_bool_t volume_is_norm;
674 size_t length;
675 size_t limit, mbs = 0;
676
677 pa_source_output_assert_ref(o);
678 pa_source_output_assert_io_context(o);
679 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
680 pa_assert(chunk);
681 pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
682
683 if (!o->push || o->thread_info.state == PA_SOURCE_OUTPUT_CORKED)
684 return;
685
686 pa_assert(o->thread_info.state == PA_SOURCE_OUTPUT_RUNNING);
687
688 if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
689 pa_log_debug("Delay queue overflow!");
690 pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
691 }
692
693 limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
694
695 volume_is_norm = pa_cvolume_is_norm(&o->thread_info.soft_volume) && !o->thread_info.muted;
696 need_volume_factor_source = !pa_cvolume_is_norm(&o->volume_factor_source);
697
698 if (limit > 0 && o->source->monitor_of) {
699 pa_usec_t latency;
700 size_t n;
701
702 /* Hmm, check the latency for knowing how much of the buffered
703 * data is actually still unplayed and might hence still
704 * change. This is suboptimal. Ideally we'd have a call like
705 * pa_sink_get_changeable_size() or so that tells us how much
706 * of the queued data is actually still changeable. Hence
707 * FIXME! */
708
709 latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
710
711 n = pa_usec_to_bytes(latency, &o->source->sample_spec);
712
713 if (n < limit)
714 limit = n;
715 }
716
717 /* Implement the delay queue */
718 while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
719 pa_memchunk qchunk;
720 pa_bool_t nvfs = need_volume_factor_source;
721
722 length -= limit;
723
724 pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
725
726 if (qchunk.length > length)
727 qchunk.length = length;
728
729 pa_assert(qchunk.length > 0);
730
731 /* It might be necessary to adjust the volume here */
732 if (!volume_is_norm) {
733 pa_memchunk_make_writable(&qchunk, 0);
734
735 if (o->thread_info.muted) {
736 pa_silence_memchunk(&qchunk, &o->source->sample_spec);
737 nvfs = FALSE;
738
739 } else if (!o->thread_info.resampler && nvfs) {
740 pa_cvolume v;
741
742 /* If we don't need a resampler we can merge the
743 * post and the pre volume adjustment into one */
744
745 pa_sw_cvolume_multiply(&v, &o->thread_info.soft_volume, &o->volume_factor_source);
746 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &v);
747 nvfs = FALSE;
748
749 } else
750 pa_volume_memchunk(&qchunk, &o->source->sample_spec, &o->thread_info.soft_volume);
751 }
752
753 if (!o->thread_info.resampler) {
754 if (nvfs) {
755 pa_memchunk_make_writable(&qchunk, 0);
756 pa_volume_memchunk(&qchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
757 }
758
759 o->push(o, &qchunk);
760 } else {
761 pa_memchunk rchunk;
762
763 if (mbs == 0)
764 mbs = pa_resampler_max_block_size(o->thread_info.resampler);
765
766 if (qchunk.length > mbs)
767 qchunk.length = mbs;
768
769 pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
770
771 if (rchunk.length > 0) {
772 if (nvfs) {
773 pa_memchunk_make_writable(&rchunk, 0);
774 pa_volume_memchunk(&rchunk, &o->thread_info.sample_spec, &o->volume_factor_source);
775 }
776
777 o->push(o, &rchunk);
778 }
779
780 if (rchunk.memblock)
781 pa_memblock_unref(rchunk.memblock);
782 }
783
784 pa_memblock_unref(qchunk.memblock);
785 pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
786 }
787 }
788
789 /* Called from thread context */
790 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
791
792 pa_source_output_assert_ref(o);
793 pa_source_output_assert_io_context(o);
794 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
795 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
796
797 if (nbytes <= 0)
798 return;
799
800 if (o->process_rewind) {
801 pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
802
803 if (o->thread_info.resampler)
804 nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
805
806 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
807
808 if (nbytes > 0)
809 o->process_rewind(o, nbytes);
810
811 if (o->thread_info.resampler)
812 pa_resampler_reset(o->thread_info.resampler);
813
814 } else
815 pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
816 }
817
818 /* Called from thread context */
819 size_t pa_source_output_get_max_rewind(pa_source_output *o) {
820 pa_source_output_assert_ref(o);
821 pa_source_output_assert_io_context(o);
822
823 return o->thread_info.resampler ? pa_resampler_request(o->thread_info.resampler, o->source->thread_info.max_rewind) : o->source->thread_info.max_rewind;
824 }
825
826 /* Called from thread context */
827 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
828 pa_source_output_assert_ref(o);
829 pa_source_output_assert_io_context(o);
830 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
831 pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
832
833 if (o->update_max_rewind)
834 o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
835 }
836
837 /* Called from thread context */
838 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
839 pa_source_output_assert_ref(o);
840 pa_source_output_assert_io_context(o);
841
842 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
843 usec = o->source->thread_info.fixed_latency;
844
845 if (usec != (pa_usec_t) -1)
846 usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
847
848 o->thread_info.requested_source_latency = usec;
849 pa_source_invalidate_requested_latency(o->source, TRUE);
850
851 return usec;
852 }
853
854 /* Called from main context */
855 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
856 pa_source_output_assert_ref(o);
857 pa_assert_ctl_context();
858
859 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
860 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
861 return usec;
862 }
863
864 /* If this source output is not realized yet or is being moved, we
865 * have to touch the thread info data directly */
866
867 if (o->source) {
868 if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
869 usec = pa_source_get_fixed_latency(o->source);
870
871 if (usec != (pa_usec_t) -1) {
872 pa_usec_t min_latency, max_latency;
873 pa_source_get_latency_range(o->source, &min_latency, &max_latency);
874 usec = PA_CLAMP(usec, min_latency, max_latency);
875 }
876 }
877
878 o->thread_info.requested_source_latency = usec;
879
880 return usec;
881 }
882
883 /* Called from main context */
884 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
885 pa_source_output_assert_ref(o);
886 pa_assert_ctl_context();
887
888 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
889 pa_usec_t usec = 0;
890 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
891 return usec;
892 }
893
894 /* If this source output is not realized yet or is being moved, we
895 * have to touch the thread info data directly */
896
897 return o->thread_info.requested_source_latency;
898 }
899
900 /* Called from main context */
901 void pa_source_output_set_volume(pa_source_output *o, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
902 pa_cvolume v;
903
904 pa_source_output_assert_ref(o);
905 pa_assert_ctl_context();
906 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
907 pa_assert(volume);
908 pa_assert(pa_cvolume_valid(volume));
909 pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &o->sample_spec));
910 pa_assert(o->volume_writable);
911
912 if (!absolute && pa_source_flat_volume_enabled(o->source)) {
913 v = o->source->reference_volume;
914 pa_cvolume_remap(&v, &o->source->channel_map, &o->channel_map);
915
916 if (pa_cvolume_compatible(volume, &o->sample_spec))
917 volume = pa_sw_cvolume_multiply(&v, &v, volume);
918 else
919 volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
920 } else {
921 if (!pa_cvolume_compatible(volume, &o->sample_spec)) {
922 v = o->volume;
923 volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
924 }
925 }
926
927 if (pa_cvolume_equal(volume, &o->volume)) {
928 o->save_volume = o->save_volume || save;
929 return;
930 }
931
932 o->volume = *volume;
933 o->save_volume = save;
934
935 if (pa_source_flat_volume_enabled(o->source)) {
936 /* We are in flat volume mode, so let's update all source input
937 * volumes and update the flat volume of the source */
938
939 pa_source_set_volume(o->source, NULL, TRUE, save);
940
941 } else {
942 /* OK, we are in normal volume mode. The volume only affects
943 * ourselves */
944 set_real_ratio(o, volume);
945
946 /* Copy the new soft_volume to the thread_info struct */
947 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
948 }
949
950 /* The volume changed, let's tell people so */
951 if (o->volume_changed)
952 o->volume_changed(o);
953
954 /* The virtual volume changed, let's tell people so */
955 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
956 }
957
958 /* Called from main context */
959 static void set_real_ratio(pa_source_output *o, const pa_cvolume *v) {
960 pa_source_output_assert_ref(o);
961 pa_assert_ctl_context();
962 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
963 pa_assert(!v || pa_cvolume_compatible(v, &o->sample_spec));
964
965 /* This basically calculates:
966 *
967 * o->real_ratio := v
968 * o->soft_volume := o->real_ratio * o->volume_factor */
969
970 if (v)
971 o->real_ratio = *v;
972 else
973 pa_cvolume_reset(&o->real_ratio, o->sample_spec.channels);
974
975 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
976 /* We don't copy the data to the thread_info data. That's left for someone else to do */
977 }
978
979 /* Called from main or I/O context */
980 pa_bool_t pa_source_output_is_passthrough(pa_source_output *o) {
981 pa_source_output_assert_ref(o);
982
983 if (PA_UNLIKELY(!pa_format_info_is_pcm(o->format)))
984 return TRUE;
985
986 if (PA_UNLIKELY(o->flags & PA_SOURCE_OUTPUT_PASSTHROUGH))
987 return TRUE;
988
989 return FALSE;
990 }
991
992 /* Called from main context */
993 pa_bool_t pa_source_output_is_volume_readable(pa_source_output *o) {
994 pa_source_output_assert_ref(o);
995 pa_assert_ctl_context();
996
997 return !pa_source_output_is_passthrough(o);
998 }
999
1000 /* Called from main context */
1001 pa_cvolume *pa_source_output_get_volume(pa_source_output *o, pa_cvolume *volume, pa_bool_t absolute) {
1002 pa_source_output_assert_ref(o);
1003 pa_assert_ctl_context();
1004 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1005 pa_assert(pa_source_output_is_volume_readable(o));
1006
1007 if (absolute || !pa_source_flat_volume_enabled(o->source))
1008 *volume = o->volume;
1009 else
1010 *volume = o->reference_ratio;
1011
1012 return volume;
1013 }
1014
1015 /* Called from main context */
1016 void pa_source_output_set_mute(pa_source_output *o, pa_bool_t mute, pa_bool_t save) {
1017 pa_source_output_assert_ref(o);
1018 pa_assert_ctl_context();
1019 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1020
1021 if (!o->muted == !mute) {
1022 o->save_muted = o->save_muted || mute;
1023 return;
1024 }
1025
1026 o->muted = mute;
1027 o->save_muted = save;
1028
1029 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
1030
1031 /* The mute status changed, let's tell people so */
1032 if (o->mute_changed)
1033 o->mute_changed(o);
1034
1035 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1036 }
1037
1038 /* Called from main context */
1039 pa_bool_t pa_source_output_get_mute(pa_source_output *o) {
1040 pa_source_output_assert_ref(o);
1041 pa_assert_ctl_context();
1042 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1043
1044 return o->muted;
1045 }
1046
1047 /* Called from main thread */
1048 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
1049 pa_source_output_assert_ref(o);
1050 pa_assert_ctl_context();
1051
1052 if (p)
1053 pa_proplist_update(o->proplist, mode, p);
1054
1055 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1056 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1057 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1058 }
1059 }
1060
1061 /* Called from main context */
1062 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
1063 pa_source_output_assert_ref(o);
1064 pa_assert_ctl_context();
1065 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1066
1067 source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
1068 }
1069
1070 /* Called from main context */
1071 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
1072 pa_source_output_assert_ref(o);
1073 pa_assert_ctl_context();
1074 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1075 pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
1076
1077 if (o->sample_spec.rate == rate)
1078 return 0;
1079
1080 o->sample_spec.rate = rate;
1081
1082 pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1083
1084 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1085 return 0;
1086 }
1087
1088 /* Called from main context */
1089 void pa_source_output_set_name(pa_source_output *o, const char *name) {
1090 const char *old;
1091 pa_assert_ctl_context();
1092 pa_source_output_assert_ref(o);
1093
1094 if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
1095 return;
1096
1097 old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
1098
1099 if (old && name && !strcmp(old, name))
1100 return;
1101
1102 if (name)
1103 pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
1104 else
1105 pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
1106
1107 if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
1108 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
1109 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1110 }
1111 }
1112
1113 /* Called from main context */
1114 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
1115 pa_source_output_assert_ref(o);
1116 pa_assert_ctl_context();
1117
1118 return o->actual_resample_method;
1119 }
1120
1121 /* Called from main context */
1122 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
1123 pa_source_output_assert_ref(o);
1124 pa_assert_ctl_context();
1125 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1126
1127 if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
1128 return FALSE;
1129
1130 if (o->direct_on_input)
1131 return FALSE;
1132
1133 return TRUE;
1134 }
1135
1136 /* Called from main context */
1137 pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
1138 pa_source_output_assert_ref(o);
1139 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1140 pa_source_assert_ref(dest);
1141
1142 if (dest == o->source)
1143 return TRUE;
1144
1145 if (!pa_source_output_may_move(o))
1146 return FALSE;
1147
1148 if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
1149 pa_log_warn("Failed to move source output: too many outputs per source.");
1150 return FALSE;
1151 }
1152
1153 if (o->may_move_to)
1154 if (!o->may_move_to(o, dest))
1155 return FALSE;
1156
1157 return TRUE;
1158 }
1159
1160 /* Called from main context */
1161 int pa_source_output_start_move(pa_source_output *o) {
1162 pa_source *origin;
1163 int r;
1164
1165 pa_source_output_assert_ref(o);
1166 pa_assert_ctl_context();
1167 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1168 pa_assert(o->source);
1169
1170 if (!pa_source_output_may_move(o))
1171 return -PA_ERR_NOTSUPPORTED;
1172
1173 if ((r = pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o)) < 0)
1174 return r;
1175
1176 origin = o->source;
1177
1178 pa_idxset_remove_by_data(o->source->outputs, o, NULL);
1179
1180 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1181 pa_assert_se(origin->n_corked-- >= 1);
1182
1183 if (pa_source_flat_volume_enabled(o->source))
1184 /* We might need to update the source's volume if we are in flat
1185 * volume mode. */
1186 pa_source_set_volume(o->source, NULL, FALSE, FALSE);
1187
1188 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
1189
1190 pa_source_update_status(o->source);
1191 o->source = NULL;
1192
1193 pa_source_output_unref(o);
1194
1195 return 0;
1196 }
1197
1198 /* Called from main context. If it has an origin source that uses volume sharing,
1199 * then also the origin source and all streams connected to it need to update
1200 * their volume - this function does all that by using recursion. */
1201 static void update_volume_due_to_moving(pa_source_output *o, pa_source *dest) {
1202 pa_cvolume old_volume;
1203
1204 pa_assert(o);
1205 pa_assert(dest);
1206 pa_assert(o->source); /* The destination source should already be set. */
1207
1208 if (o->destination_source && (o->destination_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)) {
1209 pa_source *root_source = o->source;
1210 pa_source_output *destination_source_output;
1211 uint32_t idx;
1212
1213 while (root_source->flags & PA_SOURCE_SHARE_VOLUME_WITH_MASTER)
1214 root_source = root_source->output_from_master->source;
1215
1216 if (pa_source_flat_volume_enabled(o->source)) {
1217 /* Ok, so the origin source uses volume sharing, and flat volume is
1218 * enabled. The volume will have to be updated as follows:
1219 *
1220 * o->volume := o->source->real_volume
1221 * (handled later by pa_source_set_volume)
1222 * o->reference_ratio := o->volume / o->source->reference_volume
1223 * (handled later by pa_source_set_volume)
1224 * o->real_ratio stays unchanged
1225 * (streams whose origin source uses volume sharing should
1226 * always have real_ratio of 0 dB)
1227 * o->soft_volume stays unchanged
1228 * (streams whose origin source uses volume sharing should
1229 * always have volume_factor as soft_volume, so no change
1230 * should be needed) */
1231
1232 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1233 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1234
1235 /* Notifications will be sent by pa_source_set_volume(). */
1236
1237 } else {
1238 /* Ok, so the origin source uses volume sharing, and flat volume is
1239 * disabled. The volume will have to be updated as follows:
1240 *
1241 * o->volume := 0 dB
1242 * o->reference_ratio := 0 dB
1243 * o->real_ratio stays unchanged
1244 * (streams whose origin source uses volume sharing should
1245 * always have real_ratio of 0 dB)
1246 * o->soft_volume stays unchanged
1247 * (streams whose origin source uses volume sharing should
1248 * always have volume_factor as soft_volume, so no change
1249 * should be needed) */
1250
1251 old_volume = o->volume;
1252 pa_cvolume_reset(&o->volume, o->volume.channels);
1253 pa_cvolume_reset(&o->reference_ratio, o->reference_ratio.channels);
1254 pa_assert(pa_cvolume_is_norm(&o->real_ratio));
1255 pa_assert(pa_cvolume_equal(&o->soft_volume, &o->volume_factor));
1256
1257 /* Notify others about the changed source output volume. */
1258 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1259 if (o->volume_changed)
1260 o->volume_changed(o);
1261
1262 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1263 }
1264 }
1265
1266 /* Additionally, the origin source volume needs updating:
1267 *
1268 * o->destination_source->reference_volume := root_source->reference_volume
1269 * o->destination_source->real_volume := root_source->real_volume
1270 * o->destination_source->soft_volume stays unchanged
1271 * (sources that use volume sharing should always have
1272 * soft_volume of 0 dB) */
1273
1274 old_volume = o->destination_source->reference_volume;
1275
1276 o->destination_source->reference_volume = root_source->reference_volume;
1277 pa_cvolume_remap(&o->destination_source->reference_volume, &root_source->channel_map, &o->destination_source->channel_map);
1278
1279 o->destination_source->real_volume = root_source->real_volume;
1280 pa_cvolume_remap(&o->destination_source->real_volume, &root_source->channel_map, &o->destination_source->channel_map);
1281
1282 pa_assert(pa_cvolume_is_norm(&o->destination_source->soft_volume));
1283
1284 /* Notify others about the changed source volume. If you wonder whether
1285 * o->destination_source->set_volume() should be called somewhere, that's not
1286 * the case, because sources that use volume sharing shouldn't have any
1287 * internal volume that set_volume() would update. If you wonder
1288 * whether the thread_info variables should be synced, yes, they
1289 * should, and it's done by the PA_SOURCE_MESSAGE_FINISH_MOVE message
1290 * handler. */
1291 if (!pa_cvolume_equal(&o->destination_source->reference_volume, &old_volume))
1292 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, o->destination_source->index);
1293
1294 /* Recursively update origin source outputs. */
1295 PA_IDXSET_FOREACH(destination_source_output, o->destination_source->outputs, idx)
1296 update_volume_due_to_moving(destination_source_output, dest);
1297
1298 } else {
1299 old_volume = o->volume;
1300
1301 if (pa_source_flat_volume_enabled(o->source)) {
1302 /* Ok, so this is a regular stream, and flat volume is enabled. The
1303 * volume will have to be updated as follows:
1304 *
1305 * o->volume := o->reference_ratio * o->source->reference_volume
1306 * o->reference_ratio stays unchanged
1307 * o->real_ratio := o->volume / o->source->real_volume
1308 * (handled later by pa_source_set_volume)
1309 * o->soft_volume := o->real_ratio * o->volume_factor
1310 * (handled later by pa_source_set_volume) */
1311
1312 o->volume = o->source->reference_volume;
1313 pa_cvolume_remap(&o->volume, &o->source->channel_map, &o->channel_map);
1314 pa_sw_cvolume_multiply(&o->volume, &o->volume, &o->reference_ratio);
1315
1316 } else {
1317 /* Ok, so this is a regular stream, and flat volume is disabled.
1318 * The volume will have to be updated as follows:
1319 *
1320 * o->volume := o->reference_ratio
1321 * o->reference_ratio stays unchanged
1322 * o->real_ratio := o->reference_ratio
1323 * o->soft_volume := o->real_ratio * o->volume_factor */
1324
1325 o->volume = o->reference_ratio;
1326 o->real_ratio = o->reference_ratio;
1327 pa_sw_cvolume_multiply(&o->soft_volume, &o->real_ratio, &o->volume_factor);
1328 }
1329
1330 /* Notify others about the changed source output volume. */
1331 if (!pa_cvolume_equal(&o->volume, &old_volume)) {
1332 /* XXX: In case o->source has flat volume enabled, then real_ratio
1333 * and soft_volume are not updated yet. Let's hope that the
1334 * callback implementation doesn't care about those variables... */
1335 if (o->volume_changed)
1336 o->volume_changed(o);
1337
1338 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1339 }
1340 }
1341
1342 /* If o->source == dest, then recursion has finished, and we can finally call
1343 * pa_source_set_volume(), which will do the rest of the updates. */
1344 if ((o->source == dest) && pa_source_flat_volume_enabled(o->source))
1345 pa_source_set_volume(o->source, NULL, FALSE, o->save_volume);
1346 }
1347
1348 /* Called from main context */
1349 int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1350 pa_resampler *new_resampler;
1351
1352 pa_source_output_assert_ref(o);
1353 pa_assert_ctl_context();
1354 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1355 pa_assert(!o->source);
1356 pa_source_assert_ref(dest);
1357
1358 if (!pa_source_output_may_move_to(o, dest))
1359 return -PA_ERR_NOTSUPPORTED;
1360
1361 if (pa_source_output_is_passthrough(o) && !pa_source_check_format(dest, o->format)) {
1362 pa_proplist *p = pa_proplist_new();
1363 pa_log_debug("New source doesn't support stream format, sending format-changed and killing");
1364 /* Tell the client what device we want to be on if it is going to
1365 * reconnect */
1366 pa_proplist_sets(p, "device", dest->name);
1367 pa_source_output_send_event(o, PA_STREAM_EVENT_FORMAT_LOST, p);
1368 pa_proplist_free(p);
1369 return -PA_ERR_NOTSUPPORTED;
1370 }
1371
1372 if (o->thread_info.resampler &&
1373 pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
1374 pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
1375
1376 /* Try to reuse the old resampler if possible */
1377 new_resampler = o->thread_info.resampler;
1378
1379 else if ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
1380 !pa_sample_spec_equal(&o->sample_spec, &dest->sample_spec) ||
1381 !pa_channel_map_equal(&o->channel_map, &dest->channel_map)) {
1382
1383 /* Okay, we need a new resampler for the new source */
1384
1385 if (!(new_resampler = pa_resampler_new(
1386 o->core->mempool,
1387 &dest->sample_spec, &dest->channel_map,
1388 &o->sample_spec, &o->channel_map,
1389 o->requested_resample_method,
1390 ((o->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1391 ((o->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1392 (o->core->disable_remixing || (o->flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
1393 pa_log_warn("Unsupported resampling operation.");
1394 return -PA_ERR_NOTSUPPORTED;
1395 }
1396 } else
1397 new_resampler = NULL;
1398
1399 if (o->moving)
1400 o->moving(o, dest);
1401
1402 o->source = dest;
1403 o->save_source = save;
1404 pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
1405
1406 pa_cvolume_remap(&o->volume_factor_source, &o->channel_map, &o->source->channel_map);
1407
1408 if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
1409 o->source->n_corked++;
1410
1411 /* Replace resampler */
1412 if (new_resampler != o->thread_info.resampler) {
1413
1414 if (o->thread_info.resampler)
1415 pa_resampler_free(o->thread_info.resampler);
1416 o->thread_info.resampler = new_resampler;
1417
1418 pa_memblockq_free(o->thread_info.delay_memblockq);
1419
1420 o->thread_info.delay_memblockq = pa_memblockq_new(
1421 0,
1422 MEMBLOCKQ_MAXLENGTH,
1423 0,
1424 pa_frame_size(&o->source->sample_spec),
1425 0,
1426 1,
1427 0,
1428 &o->source->silence);
1429 o->actual_resample_method = new_resampler ? pa_resampler_get_method(new_resampler) : PA_RESAMPLER_INVALID;
1430 }
1431
1432 pa_source_update_status(dest);
1433
1434 update_volume_due_to_moving(o, dest);
1435
1436 pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
1437
1438 pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
1439
1440 /* Notify everyone */
1441 pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
1442 pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
1443
1444 return 0;
1445 }
1446
1447 /* Called from main context */
1448 void pa_source_output_fail_move(pa_source_output *o) {
1449
1450 pa_source_output_assert_ref(o);
1451 pa_assert_ctl_context();
1452 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1453 pa_assert(!o->source);
1454
1455 /* Check if someone wants this source output? */
1456 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP)
1457 return;
1458
1459 if (o->moving)
1460 o->moving(o, NULL);
1461
1462 pa_source_output_kill(o);
1463 }
1464
1465 /* Called from main context */
1466 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
1467 int r;
1468
1469 pa_source_output_assert_ref(o);
1470 pa_assert_ctl_context();
1471 pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
1472 pa_assert(o->source);
1473 pa_source_assert_ref(dest);
1474
1475 if (dest == o->source)
1476 return 0;
1477
1478 if (!pa_source_output_may_move_to(o, dest))
1479 return -PA_ERR_NOTSUPPORTED;
1480
1481 pa_source_output_ref(o);
1482
1483 if ((r = pa_source_output_start_move(o)) < 0) {
1484 pa_source_output_unref(o);
1485 return r;
1486 }
1487
1488 if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
1489 pa_source_output_fail_move(o);
1490 pa_source_output_unref(o);
1491 return r;
1492 }
1493
1494 pa_source_output_unref(o);
1495
1496 return 0;
1497 }
1498
1499 /* Called from IO thread context */
1500 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
1501 pa_source_output_assert_ref(o);
1502 pa_source_output_assert_io_context(o);
1503
1504 if (state == o->thread_info.state)
1505 return;
1506
1507 if (o->state_change)
1508 o->state_change(o, state);
1509
1510 o->thread_info.state = state;
1511 }
1512
1513 /* Called from IO thread context, except when it is not */
1514 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
1515 pa_source_output *o = PA_SOURCE_OUTPUT(mo);
1516 pa_source_output_assert_ref(o);
1517
1518 switch (code) {
1519
1520 case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
1521 pa_usec_t *r = userdata;
1522
1523 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
1524 r[1] += pa_source_get_latency_within_thread(o->source);
1525
1526 return 0;
1527 }
1528
1529 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
1530
1531 o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1532 pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1533 return 0;
1534
1535 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
1536
1537 pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
1538
1539 return 0;
1540
1541 case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1542 pa_usec_t *usec = userdata;
1543
1544 *usec = pa_source_output_set_requested_latency_within_thread(o, *usec);
1545
1546 return 0;
1547 }
1548
1549 case PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1550 pa_usec_t *r = userdata;
1551
1552 *r = o->thread_info.requested_source_latency;
1553 return 0;
1554 }
1555
1556 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_VOLUME:
1557 if (!pa_cvolume_equal(&o->thread_info.soft_volume, &o->soft_volume)) {
1558 o->thread_info.soft_volume = o->soft_volume;
1559 }
1560 return 0;
1561
1562 case PA_SOURCE_OUTPUT_MESSAGE_SET_SOFT_MUTE:
1563 if (o->thread_info.muted != o->muted) {
1564 o->thread_info.muted = o->muted;
1565 }
1566 return 0;
1567 }
1568
1569 return -PA_ERR_NOTIMPLEMENTED;
1570 }
1571
1572 /* Called from main context */
1573 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
1574 pa_proplist *pl = NULL;
1575 pa_source_output_send_event_hook_data hook_data;
1576
1577 pa_source_output_assert_ref(o);
1578 pa_assert_ctl_context();
1579 pa_assert(event);
1580
1581 if (!o->send_event)
1582 return;
1583
1584 if (!data)
1585 data = pl = pa_proplist_new();
1586
1587 hook_data.source_output = o;
1588 hook_data.data = data;
1589 hook_data.event = event;
1590
1591 if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT], &hook_data) < 0)
1592 goto finish;
1593
1594 o->send_event(o, event, data);
1595
1596 finish:
1597 if (pl)
1598 pa_proplist_free(pl);
1599 }