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[pulseaudio] / src / pulsecore / sink-input.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
6
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
11
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA.
21 ***/
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/util.h>
34
35 #include <pulsecore/sample-util.h>
36 #include <pulsecore/core-subscribe.h>
37 #include <pulsecore/log.h>
38 #include <pulsecore/play-memblockq.h>
39 #include <pulsecore/namereg.h>
40 #include <pulsecore/core-util.h>
41
42 #include "sink-input.h"
43
44 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
45 #define CONVERT_BUFFER_LENGTH (PA_PAGE_SIZE)
46
47 static PA_DEFINE_CHECK_TYPE(pa_sink_input, pa_msgobject);
48
49 static void sink_input_free(pa_object *o);
50
51 pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data) {
52 pa_assert(data);
53
54 memset(data, 0, sizeof(*data));
55 data->resample_method = PA_RESAMPLER_INVALID;
56 data->proplist = pa_proplist_new();
57
58 return data;
59 }
60
61 void pa_sink_input_new_data_set_sample_spec(pa_sink_input_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_sink_input_new_data_set_channel_map(pa_sink_input_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 void pa_sink_input_new_data_set_volume(pa_sink_input_new_data *data, const pa_cvolume *volume) {
76 pa_assert(data);
77
78 if ((data->volume_is_set = !!volume))
79 data->volume = *volume;
80 }
81
82 void pa_sink_input_new_data_apply_volume_factor(pa_sink_input_new_data *data, const pa_cvolume *volume_factor) {
83 pa_assert(data);
84 pa_assert(volume_factor);
85
86 if (data->volume_factor_is_set)
87 pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
88 else {
89 data->volume_factor_is_set = TRUE;
90 data->volume_factor = *volume_factor;
91 }
92 }
93
94 void pa_sink_input_new_data_set_muted(pa_sink_input_new_data *data, pa_bool_t mute) {
95 pa_assert(data);
96
97 data->muted_is_set = TRUE;
98 data->muted = !!mute;
99 }
100
101 void pa_sink_input_new_data_done(pa_sink_input_new_data *data) {
102 pa_assert(data);
103
104 pa_proplist_free(data->proplist);
105 }
106
107 /* Called from main context */
108 static void reset_callbacks(pa_sink_input *i) {
109 pa_assert(i);
110
111 i->pop = NULL;
112 i->process_rewind = NULL;
113 i->update_max_rewind = NULL;
114 i->update_max_request = NULL;
115 i->update_sink_requested_latency = NULL;
116 i->update_sink_latency_range = NULL;
117 i->attach = NULL;
118 i->detach = NULL;
119 i->suspend = NULL;
120 i->moved = NULL;
121 i->kill = NULL;
122 i->get_latency = NULL;
123 i->state_change = NULL;
124 i->may_move_to = NULL;
125 i->send_event = NULL;
126 }
127
128 /* Called from main context */
129 int pa_sink_input_new(
130 pa_sink_input **_i,
131 pa_core *core,
132 pa_sink_input_new_data *data,
133 pa_sink_input_flags_t flags) {
134
135 pa_sink_input *i;
136 pa_resampler *resampler = NULL;
137 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
138 pa_channel_map original_cm;
139 int r;
140
141 pa_assert(_i);
142 pa_assert(core);
143 pa_assert(data);
144
145 if (data->client)
146 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
147
148 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_NEW], data)) < 0)
149 return r;
150
151 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
152
153 if (!data->sink) {
154 data->sink = pa_namereg_get(core, NULL, PA_NAMEREG_SINK);
155 data->save_sink = FALSE;
156 }
157
158 pa_return_val_if_fail(data->sink, -PA_ERR_NOENTITY);
159 pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data->sink)), -PA_ERR_BADSTATE);
160 pa_return_val_if_fail(!data->sync_base || (data->sync_base->sink == data->sink && pa_sink_input_get_state(data->sync_base) == PA_SINK_INPUT_CORKED), -PA_ERR_INVALID);
161
162 if (!data->sample_spec_is_set)
163 data->sample_spec = data->sink->sample_spec;
164
165 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
166
167 if (!data->channel_map_is_set) {
168 if (pa_channel_map_compatible(&data->sink->channel_map, &data->sample_spec))
169 data->channel_map = data->sink->channel_map;
170 else
171 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
172 }
173
174 pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
175 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
176
177 if (!data->volume_is_set) {
178
179 if (data->sink->flags & PA_SINK_FLAT_VOLUME) {
180 data->volume = *pa_sink_get_volume(data->sink, FALSE);
181 pa_cvolume_remap(&data->volume, &data->sink->channel_map, &data->channel_map);
182 data->volume_is_absolute = TRUE;
183 } else {
184 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
185 data->volume_is_absolute = FALSE;
186 }
187
188 data->save_volume = FALSE;
189 }
190
191 pa_return_val_if_fail(pa_cvolume_valid(&data->volume), -PA_ERR_INVALID);
192 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
193
194 if (!data->volume_factor_is_set)
195 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
196
197 pa_return_val_if_fail(pa_cvolume_valid(&data->volume_factor), -PA_ERR_INVALID);
198 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
199
200 if (!data->muted_is_set)
201 data->muted = FALSE;
202
203 if (flags & PA_SINK_INPUT_FIX_FORMAT)
204 data->sample_spec.format = data->sink->sample_spec.format;
205
206 if (flags & PA_SINK_INPUT_FIX_RATE)
207 data->sample_spec.rate = data->sink->sample_spec.rate;
208
209 original_cm = data->channel_map;
210
211 if (flags & PA_SINK_INPUT_FIX_CHANNELS) {
212 data->sample_spec.channels = data->sink->sample_spec.channels;
213 data->channel_map = data->sink->channel_map;
214 }
215
216 pa_assert(pa_sample_spec_valid(&data->sample_spec));
217 pa_assert(pa_channel_map_valid(&data->channel_map));
218
219 /* Due to the fixing of the sample spec the volume might not match anymore */
220 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
221
222 if (data->resample_method == PA_RESAMPLER_INVALID)
223 data->resample_method = core->resample_method;
224
225 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
226
227 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], data)) < 0)
228 return r;
229
230 if ((flags & PA_SINK_INPUT_FAIL_ON_SUSPEND) &&
231 pa_sink_get_state(data->sink) == PA_SINK_SUSPENDED) {
232 pa_log_warn("Failed to create sink input: sink is suspended.");
233 return -PA_ERR_BADSTATE;
234 }
235
236 if (pa_idxset_size(data->sink->inputs) >= PA_MAX_INPUTS_PER_SINK) {
237 pa_log_warn("Failed to create sink input: too many inputs per sink.");
238 return -PA_ERR_TOOLARGE;
239 }
240
241 if ((flags & PA_SINK_INPUT_VARIABLE_RATE) ||
242 !pa_sample_spec_equal(&data->sample_spec, &data->sink->sample_spec) ||
243 !pa_channel_map_equal(&data->channel_map, &data->sink->channel_map)) {
244
245 if (!(resampler = pa_resampler_new(
246 core->mempool,
247 &data->sample_spec, &data->channel_map,
248 &data->sink->sample_spec, &data->sink->channel_map,
249 data->resample_method,
250 ((flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
251 ((flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
252 (core->disable_remixing || (flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
253 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
254 pa_log_warn("Unsupported resampling operation.");
255 return -PA_ERR_NOTSUPPORTED;
256 }
257 }
258
259 i = pa_msgobject_new(pa_sink_input);
260 i->parent.parent.free = sink_input_free;
261 i->parent.process_msg = pa_sink_input_process_msg;
262
263 i->core = core;
264 i->state = PA_SINK_INPUT_INIT;
265 i->flags = flags;
266 i->proplist = pa_proplist_copy(data->proplist);
267 i->driver = pa_xstrdup(pa_path_get_filename(data->driver));
268 i->module = data->module;
269 i->sink = data->sink;
270 i->client = data->client;
271
272 i->requested_resample_method = data->resample_method;
273 i->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
274 i->sample_spec = data->sample_spec;
275 i->channel_map = data->channel_map;
276
277 if ((i->sink->flags & PA_SINK_FLAT_VOLUME) && !data->volume_is_absolute) {
278 /* When the 'absolute' bool is not set then we'll treat the volume
279 * as relative to the sink volume even in flat volume mode */
280
281 pa_cvolume t = *pa_sink_get_volume(data->sink, FALSE);
282 pa_cvolume_remap(&t, &data->sink->channel_map, &data->channel_map);
283
284 pa_sw_cvolume_multiply(&i->virtual_volume, &data->volume, &t);
285 } else
286 i->virtual_volume = data->volume;
287
288 i->volume_factor = data->volume_factor;
289 pa_cvolume_init(&i->soft_volume);
290 i->save_volume = data->save_volume;
291 i->save_sink = data->save_sink;
292 i->save_muted = data->save_muted;
293
294 i->muted = data->muted;
295
296 if (data->sync_base) {
297 i->sync_next = data->sync_base->sync_next;
298 i->sync_prev = data->sync_base;
299
300 if (data->sync_base->sync_next)
301 data->sync_base->sync_next->sync_prev = i;
302 data->sync_base->sync_next = i;
303 } else
304 i->sync_next = i->sync_prev = NULL;
305
306 i->direct_outputs = pa_idxset_new(NULL, NULL);
307
308 reset_callbacks(i);
309 i->userdata = NULL;
310
311 i->thread_info.state = i->state;
312 i->thread_info.attached = FALSE;
313 pa_atomic_store(&i->thread_info.drained, 1);
314 i->thread_info.sample_spec = i->sample_spec;
315 i->thread_info.resampler = resampler;
316 i->thread_info.soft_volume = i->soft_volume;
317 i->thread_info.muted = i->muted;
318 i->thread_info.requested_sink_latency = (pa_usec_t) -1;
319 i->thread_info.rewrite_nbytes = 0;
320 i->thread_info.rewrite_flush = FALSE;
321 i->thread_info.dont_rewind_render = FALSE;
322 i->thread_info.underrun_for = (uint64_t) -1;
323 i->thread_info.playing_for = 0;
324 i->thread_info.direct_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
325
326 i->thread_info.render_memblockq = pa_memblockq_new(
327 0,
328 MEMBLOCKQ_MAXLENGTH,
329 0,
330 pa_frame_size(&i->sink->sample_spec),
331 0,
332 1,
333 0,
334 &i->sink->silence);
335
336 pa_assert_se(pa_idxset_put(core->sink_inputs, pa_sink_input_ref(i), &i->index) == 0);
337 pa_assert_se(pa_idxset_put(i->sink->inputs, i, NULL) == 0);
338
339 if (i->client)
340 pa_assert_se(pa_idxset_put(i->client->sink_inputs, i, NULL) >= 0);
341
342 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
343 i->index,
344 pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)),
345 i->sink->name,
346 pa_sample_spec_snprint(st, sizeof(st), &i->sample_spec),
347 pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map));
348
349 /* Don't forget to call pa_sink_input_put! */
350
351 *_i = i;
352 return 0;
353 }
354
355 /* Called from main context */
356 static void update_n_corked(pa_sink_input *i, pa_sink_input_state_t state) {
357 pa_assert(i);
358
359 if (!i->sink)
360 return;
361
362 if (i->state == PA_SINK_INPUT_CORKED && state != PA_SINK_INPUT_CORKED)
363 pa_assert_se(i->sink->n_corked -- >= 1);
364 else if (i->state != PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_CORKED)
365 i->sink->n_corked++;
366 }
367
368 /* Called from main context */
369 static void sink_input_set_state(pa_sink_input *i, pa_sink_input_state_t state) {
370 pa_sink_input *ssync;
371 pa_assert(i);
372
373 if (state == PA_SINK_INPUT_DRAINED)
374 state = PA_SINK_INPUT_RUNNING;
375
376 if (i->state == state)
377 return;
378
379 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL) == 0);
380
381 update_n_corked(i, state);
382 i->state = state;
383
384 for (ssync = i->sync_prev; ssync; ssync = ssync->sync_prev) {
385 update_n_corked(ssync, state);
386 ssync->state = state;
387 }
388 for (ssync = i->sync_next; ssync; ssync = ssync->sync_next) {
389 update_n_corked(ssync, state);
390 ssync->state = state;
391 }
392
393 if (state != PA_SINK_INPUT_UNLINKED) {
394 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], i);
395
396 for (ssync = i->sync_prev; ssync; ssync = ssync->sync_prev)
397 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], ssync);
398
399 for (ssync = i->sync_next; ssync; ssync = ssync->sync_next)
400 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], ssync);
401 }
402
403 pa_sink_update_status(i->sink);
404 }
405
406 /* Called from main context */
407 void pa_sink_input_unlink(pa_sink_input *i) {
408 pa_bool_t linked;
409 pa_source_output *o, *p = NULL;
410 pa_assert(i);
411
412 /* See pa_sink_unlink() for a couple of comments how this function
413 * works */
414
415 pa_sink_input_ref(i);
416
417 linked = PA_SINK_INPUT_IS_LINKED(i->state);
418
419 if (linked)
420 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], i);
421
422 if (i->sync_prev)
423 i->sync_prev->sync_next = i->sync_next;
424 if (i->sync_next)
425 i->sync_next->sync_prev = i->sync_prev;
426
427 i->sync_prev = i->sync_next = NULL;
428
429 pa_idxset_remove_by_data(i->core->sink_inputs, i, NULL);
430
431 if (i->sink)
432 if (pa_idxset_remove_by_data(i->sink->inputs, i, NULL))
433 pa_sink_input_unref(i);
434
435 if (i->client)
436 pa_idxset_remove_by_data(i->client->sink_inputs, i, NULL);
437
438 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
439 pa_assert(o != p);
440 pa_source_output_kill(o);
441 p = o;
442 }
443
444 update_n_corked(i, PA_SINK_INPUT_UNLINKED);
445 i->state = PA_SINK_INPUT_UNLINKED;
446
447 if (linked && i->sink) {
448 /* We might need to update the sink's volume if we are in flat volume mode. */
449 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
450 pa_cvolume new_volume;
451 pa_sink_update_flat_volume(i->sink, &new_volume);
452 pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
453 }
454
455 if (i->sink->asyncmsgq)
456 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_REMOVE_INPUT, i, 0, NULL) == 0);
457 }
458
459 reset_callbacks(i);
460
461 if (linked) {
462 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
463 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], i);
464 }
465
466 if (i->sink) {
467 pa_sink_update_status(i->sink);
468 i->sink = NULL;
469 }
470
471 pa_core_maybe_vacuum(i->core);
472
473 pa_sink_input_unref(i);
474 }
475
476 /* Called from main context */
477 static void sink_input_free(pa_object *o) {
478 pa_sink_input* i = PA_SINK_INPUT(o);
479
480 pa_assert(i);
481 pa_assert(pa_sink_input_refcnt(i) == 0);
482
483 if (PA_SINK_INPUT_IS_LINKED(i->state))
484 pa_sink_input_unlink(i);
485
486 pa_log_info("Freeing input %u \"%s\"", i->index, pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)));
487
488 pa_assert(!i->thread_info.attached);
489
490 if (i->thread_info.render_memblockq)
491 pa_memblockq_free(i->thread_info.render_memblockq);
492
493 if (i->thread_info.resampler)
494 pa_resampler_free(i->thread_info.resampler);
495
496 if (i->proplist)
497 pa_proplist_free(i->proplist);
498
499 if (i->direct_outputs)
500 pa_idxset_free(i->direct_outputs, NULL, NULL);
501
502 if (i->thread_info.direct_outputs)
503 pa_hashmap_free(i->thread_info.direct_outputs, NULL, NULL);
504
505 pa_xfree(i->driver);
506 pa_xfree(i);
507 }
508
509 /* Called from main context */
510 void pa_sink_input_put(pa_sink_input *i) {
511 pa_sink_input_state_t state;
512 pa_sink_input_assert_ref(i);
513
514 pa_assert(i->state == PA_SINK_INPUT_INIT);
515
516 /* The following fields must be initialized properly */
517 pa_assert(i->pop);
518 pa_assert(i->process_rewind);
519 pa_assert(i->kill);
520
521 state = i->flags & PA_SINK_INPUT_START_CORKED ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING;
522
523 update_n_corked(i, state);
524 i->state = state;
525
526 /* We might need to update the sink's volume if we are in flat volume mode. */
527 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
528 pa_cvolume new_volume;
529 pa_sink_update_flat_volume(i->sink, &new_volume);
530 pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
531 } else
532 pa_sw_cvolume_multiply(&i->soft_volume, &i->virtual_volume, &i->volume_factor);
533
534 i->thread_info.soft_volume = i->soft_volume;
535 i->thread_info.muted = i->muted;
536
537 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_ADD_INPUT, i, 0, NULL) == 0);
538
539 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW, i->index);
540 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PUT], i);
541
542 pa_sink_update_status(i->sink);
543 }
544
545 /* Called from main context */
546 void pa_sink_input_kill(pa_sink_input*i) {
547 pa_sink_input_assert_ref(i);
548 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
549
550 i->kill(i);
551 }
552
553 /* Called from main context */
554 pa_usec_t pa_sink_input_get_latency(pa_sink_input *i, pa_usec_t *sink_latency) {
555 pa_usec_t r[2] = { 0, 0 };
556
557 pa_sink_input_assert_ref(i);
558 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
559
560 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
561
562 if (i->get_latency)
563 r[0] += i->get_latency(i);
564
565 if (sink_latency)
566 *sink_latency = r[1];
567
568 return r[0];
569 }
570
571 /* Called from thread context */
572 void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, pa_memchunk *chunk, pa_cvolume *volume) {
573 pa_bool_t do_volume_adj_here;
574 pa_bool_t volume_is_norm;
575 size_t block_size_max_sink, block_size_max_sink_input;
576 size_t ilength;
577
578 pa_sink_input_assert_ref(i);
579 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
580 pa_assert(pa_frame_aligned(slength, &i->sink->sample_spec));
581 pa_assert(chunk);
582 pa_assert(volume);
583
584 /* pa_log_debug("peek"); */
585
586 pa_assert(i->thread_info.state == PA_SINK_INPUT_RUNNING ||
587 i->thread_info.state == PA_SINK_INPUT_CORKED ||
588 i->thread_info.state == PA_SINK_INPUT_DRAINED);
589
590 block_size_max_sink_input = i->thread_info.resampler ?
591 pa_resampler_max_block_size(i->thread_info.resampler) :
592 pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sample_spec);
593
594 block_size_max_sink = pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sink->sample_spec);
595
596 /* Default buffer size */
597 if (slength <= 0)
598 slength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sink->sample_spec);
599
600 if (slength > block_size_max_sink)
601 slength = block_size_max_sink;
602
603 if (i->thread_info.resampler) {
604 ilength = pa_resampler_request(i->thread_info.resampler, slength);
605
606 if (ilength <= 0)
607 ilength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sample_spec);
608 } else
609 ilength = slength;
610
611 if (ilength > block_size_max_sink_input)
612 ilength = block_size_max_sink_input;
613
614 /* If the channel maps of the sink and this stream differ, we need
615 * to adjust the volume *before* we resample. Otherwise we can do
616 * it after and leave it for the sink code */
617
618 do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map);
619 volume_is_norm = pa_cvolume_is_norm(&i->thread_info.soft_volume) && !i->thread_info.muted;
620
621 while (!pa_memblockq_is_readable(i->thread_info.render_memblockq)) {
622 pa_memchunk tchunk;
623
624 /* There's nothing in our render queue. We need to fill it up
625 * with data from the implementor. */
626
627 if (i->thread_info.state == PA_SINK_INPUT_CORKED ||
628 i->pop(i, ilength, &tchunk) < 0) {
629
630 /* OK, we're corked or the implementor didn't give us any
631 * data, so let's just hand out silence */
632 pa_atomic_store(&i->thread_info.drained, 1);
633
634 pa_memblockq_seek(i->thread_info.render_memblockq, (int64_t) slength, PA_SEEK_RELATIVE);
635 i->thread_info.playing_for = 0;
636 if (i->thread_info.underrun_for != (uint64_t) -1)
637 i->thread_info.underrun_for += ilength;
638 break;
639 }
640
641 pa_atomic_store(&i->thread_info.drained, 0);
642
643 pa_assert(tchunk.length > 0);
644 pa_assert(tchunk.memblock);
645
646 i->thread_info.underrun_for = 0;
647 i->thread_info.playing_for += tchunk.length;
648
649 while (tchunk.length > 0) {
650 pa_memchunk wchunk;
651
652 wchunk = tchunk;
653 pa_memblock_ref(wchunk.memblock);
654
655 if (wchunk.length > block_size_max_sink_input)
656 wchunk.length = block_size_max_sink_input;
657
658 /* It might be necessary to adjust the volume here */
659 if (do_volume_adj_here && !volume_is_norm) {
660 pa_memchunk_make_writable(&wchunk, 0);
661
662 if (i->thread_info.muted)
663 pa_silence_memchunk(&wchunk, &i->thread_info.sample_spec);
664 else
665 pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &i->thread_info.soft_volume);
666 }
667
668 if (!i->thread_info.resampler)
669 pa_memblockq_push_align(i->thread_info.render_memblockq, &wchunk);
670 else {
671 pa_memchunk rchunk;
672 pa_resampler_run(i->thread_info.resampler, &wchunk, &rchunk);
673
674 /* pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
675
676 if (rchunk.memblock) {
677 pa_memblockq_push_align(i->thread_info.render_memblockq, &rchunk);
678 pa_memblock_unref(rchunk.memblock);
679 }
680 }
681
682 pa_memblock_unref(wchunk.memblock);
683
684 tchunk.index += wchunk.length;
685 tchunk.length -= wchunk.length;
686 }
687
688 pa_memblock_unref(tchunk.memblock);
689 }
690
691 pa_assert_se(pa_memblockq_peek(i->thread_info.render_memblockq, chunk) >= 0);
692
693 pa_assert(chunk->length > 0);
694 pa_assert(chunk->memblock);
695
696 /* pa_log_debug("peeking %lu", (unsigned long) chunk->length); */
697
698 if (chunk->length > block_size_max_sink)
699 chunk->length = block_size_max_sink;
700
701 /* Let's see if we had to apply the volume adjustment ourselves,
702 * or if this can be done by the sink for us */
703
704 if (do_volume_adj_here)
705 /* We had different channel maps, so we already did the adjustment */
706 pa_cvolume_reset(volume, i->sink->sample_spec.channels);
707 else if (i->thread_info.muted)
708 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
709 pa_cvolume_mute(volume, i->sink->sample_spec.channels);
710 else
711 *volume = i->thread_info.soft_volume;
712 }
713
714 /* Called from thread context */
715 void pa_sink_input_drop(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
716 pa_sink_input_assert_ref(i);
717
718 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
719 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
720 pa_assert(nbytes > 0);
721
722 /* pa_log_debug("dropping %lu", (unsigned long) nbytes); */
723
724 pa_memblockq_drop(i->thread_info.render_memblockq, nbytes);
725 }
726
727 /* Called from thread context */
728 void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
729 size_t lbq;
730 pa_bool_t called = FALSE;
731 pa_sink_input_assert_ref(i);
732
733 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
734 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
735
736 /* pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes, (unsigned long) i->thread_info.rewrite_nbytes); */
737
738 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
739
740 if (nbytes > 0 && !i->thread_info.dont_rewind_render) {
741 pa_log_debug("Have to rewind %lu bytes on render memblockq.", (unsigned long) nbytes);
742 pa_memblockq_rewind(i->thread_info.render_memblockq, nbytes);
743 }
744
745 if (i->thread_info.rewrite_nbytes == (size_t) -1) {
746
747 /* We were asked to drop all buffered data, and rerequest new
748 * data from implementor the next time push() is called */
749
750 pa_memblockq_flush_write(i->thread_info.render_memblockq);
751
752 } else if (i->thread_info.rewrite_nbytes > 0) {
753 size_t max_rewrite, amount;
754
755 /* Calculate how much make sense to rewrite at most */
756 max_rewrite = nbytes + lbq;
757
758 /* Transform into local domain */
759 if (i->thread_info.resampler)
760 max_rewrite = pa_resampler_request(i->thread_info.resampler, max_rewrite);
761
762 /* Calculate how much of the rewinded data should actually be rewritten */
763 amount = PA_MIN(i->thread_info.rewrite_nbytes, max_rewrite);
764
765 if (amount > 0) {
766 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) amount);
767
768 /* Tell the implementor */
769 if (i->process_rewind)
770 i->process_rewind(i, amount);
771 called = TRUE;
772
773 /* Convert back to to sink domain */
774 if (i->thread_info.resampler)
775 amount = pa_resampler_result(i->thread_info.resampler, amount);
776
777 if (amount > 0)
778 /* Ok, now update the write pointer */
779 pa_memblockq_seek(i->thread_info.render_memblockq, - ((int64_t) amount), PA_SEEK_RELATIVE);
780
781 if (i->thread_info.rewrite_flush)
782 pa_memblockq_silence(i->thread_info.render_memblockq);
783
784 /* And reset the resampler */
785 if (i->thread_info.resampler)
786 pa_resampler_reset(i->thread_info.resampler);
787 }
788 }
789
790 if (!called)
791 if (i->process_rewind)
792 i->process_rewind(i, 0);
793
794 i->thread_info.rewrite_nbytes = 0;
795 i->thread_info.rewrite_flush = FALSE;
796 i->thread_info.dont_rewind_render = FALSE;
797 }
798
799 /* Called from thread context */
800 void pa_sink_input_update_max_rewind(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */) {
801 pa_sink_input_assert_ref(i);
802 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
803 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
804
805 pa_memblockq_set_maxrewind(i->thread_info.render_memblockq, nbytes);
806
807 if (i->update_max_rewind)
808 i->update_max_rewind(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
809 }
810
811 /* Called from thread context */
812 void pa_sink_input_update_max_request(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */) {
813 pa_sink_input_assert_ref(i);
814 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
815 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
816
817 if (i->update_max_request)
818 i->update_max_request(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
819 }
820
821 /* Called from thread context */
822 static pa_usec_t fixup_latency(pa_sink *s, pa_usec_t usec) {
823 pa_sink_assert_ref(s);
824
825 if (usec == (pa_usec_t) -1)
826 return usec;
827
828 if (s->thread_info.max_latency > 0 && usec > s->thread_info.max_latency)
829 usec = s->thread_info.max_latency;
830
831 if (s->thread_info.min_latency > 0 && usec < s->thread_info.min_latency)
832 usec = s->thread_info.min_latency;
833
834 return usec;
835 }
836
837 /* Called from thread context */
838 pa_usec_t pa_sink_input_set_requested_latency_within_thread(pa_sink_input *i, pa_usec_t usec) {
839 pa_sink_input_assert_ref(i);
840
841 usec = fixup_latency(i->sink, usec);
842 i->thread_info.requested_sink_latency = usec;
843 pa_sink_invalidate_requested_latency(i->sink);
844
845 return usec;
846 }
847
848 /* Called from main context */
849 pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
850 pa_sink_input_assert_ref(i);
851
852 if (PA_SINK_INPUT_IS_LINKED(i->state))
853 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
854 else
855 /* If this sink input is not realized yet, we have to touch
856 * the thread info data directly */
857
858 i->thread_info.requested_sink_latency = usec;
859
860 return usec;
861 }
862
863 /* Called from main context */
864 pa_usec_t pa_sink_input_get_requested_latency(pa_sink_input *i) {
865 pa_usec_t usec = 0;
866
867 pa_sink_input_assert_ref(i);
868
869 if (PA_SINK_INPUT_IS_LINKED(i->state))
870 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
871 else
872 /* If this sink input is not realized yet, we have to touch
873 * the thread info data directly */
874 usec = i->thread_info.requested_sink_latency;
875
876 return usec;
877 }
878
879 /* Called from main context */
880 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume, pa_bool_t save) {
881 pa_sink_input_assert_ref(i);
882 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
883 pa_assert(volume);
884 pa_assert(pa_cvolume_valid(volume));
885 pa_assert(pa_cvolume_compatible(volume, &i->sample_spec));
886
887 if (pa_cvolume_equal(volume, &i->virtual_volume))
888 return;
889
890 i->virtual_volume = *volume;
891 i->save_volume = save;
892
893 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
894 pa_cvolume new_volume;
895
896 /* We are in flat volume mode, so let's update all sink input
897 * volumes and update the flat volume of the sink */
898
899 pa_sink_update_flat_volume(i->sink, &new_volume);
900 pa_sink_set_volume(i->sink, &new_volume, FALSE, TRUE);
901
902 } else {
903
904 /* OK, we are in normal volume mode. The volume only affects
905 * ourselves */
906 pa_sw_cvolume_multiply(&i->soft_volume, volume, &i->volume_factor);
907
908 /* Hooks have the ability to play games with i->soft_volume */
909 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME], i);
910
911 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
912 }
913
914 /* The virtual volume changed, let's tell people so */
915 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
916 }
917
918 /* Called from main context */
919 const pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i) {
920 pa_sink_input_assert_ref(i);
921 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
922
923 return &i->virtual_volume;
924 }
925
926 /* Called from main context */
927 void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
928 pa_assert(i);
929 pa_sink_input_assert_ref(i);
930 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
931
932 if (!i->muted == !mute)
933 return;
934
935 i->muted = mute;
936 i->save_muted = save;
937
938 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
939 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
940 }
941
942 /* Called from main context */
943 pa_bool_t pa_sink_input_get_mute(pa_sink_input *i) {
944 pa_sink_input_assert_ref(i);
945 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
946
947 return i->muted;
948 }
949
950 /* Called from main thread */
951 void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_proplist *p) {
952 pa_sink_input_assert_ref(i);
953
954 if (p)
955 pa_proplist_update(i->proplist, mode, p);
956
957 if (PA_SINK_IS_LINKED(i->state)) {
958 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
959 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
960 }
961 }
962
963 /* Called from main context */
964 void pa_sink_input_cork(pa_sink_input *i, pa_bool_t b) {
965 pa_sink_input_assert_ref(i);
966 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
967
968 sink_input_set_state(i, b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING);
969 }
970
971 /* Called from main context */
972 int pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate) {
973 pa_sink_input_assert_ref(i);
974 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
975 pa_return_val_if_fail(i->thread_info.resampler, -PA_ERR_BADSTATE);
976
977 if (i->sample_spec.rate == rate)
978 return 0;
979
980 i->sample_spec.rate = rate;
981
982 pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
983
984 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
985 return 0;
986 }
987
988 /* Called from main context */
989 void pa_sink_input_set_name(pa_sink_input *i, const char *name) {
990 const char *old;
991 pa_sink_input_assert_ref(i);
992
993 if (!name && !pa_proplist_contains(i->proplist, PA_PROP_MEDIA_NAME))
994 return;
995
996 old = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME);
997
998 if (old && name && !strcmp(old, name))
999 return;
1000
1001 if (name)
1002 pa_proplist_sets(i->proplist, PA_PROP_MEDIA_NAME, name);
1003 else
1004 pa_proplist_unset(i->proplist, PA_PROP_MEDIA_NAME);
1005
1006 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
1007 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
1008 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1009 }
1010 }
1011
1012 /* Called from main context */
1013 pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i) {
1014 pa_sink_input_assert_ref(i);
1015
1016 return i->actual_resample_method;
1017 }
1018
1019 /* Called from main context */
1020 pa_bool_t pa_sink_input_may_move(pa_sink_input *i) {
1021 pa_sink_input_assert_ref(i);
1022 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1023
1024 if (i->flags & PA_SINK_INPUT_DONT_MOVE)
1025 return FALSE;
1026
1027 if (i->sync_next || i->sync_prev) {
1028 pa_log_warn("Moving synchronised streams not supported.");
1029 return FALSE;
1030 }
1031
1032 return TRUE;
1033 }
1034
1035 /* Called from main context */
1036 pa_bool_t pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
1037 pa_sink_input_assert_ref(i);
1038 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1039 pa_sink_assert_ref(dest);
1040
1041 if (dest == i->sink)
1042 return TRUE;
1043
1044 if (!pa_sink_input_may_move(i))
1045 return FALSE;
1046
1047 if (pa_idxset_size(dest->inputs) >= PA_MAX_INPUTS_PER_SINK) {
1048 pa_log_warn("Failed to move sink input: too many inputs per sink.");
1049 return FALSE;
1050 }
1051
1052 if (i->may_move_to)
1053 if (!i->may_move_to(i, dest))
1054 return FALSE;
1055
1056 return TRUE;
1057 }
1058
1059 /* Called from main context */
1060 int pa_sink_input_start_move(pa_sink_input *i) {
1061 pa_source_output *o, *p = NULL;
1062 pa_sink *origin;
1063 int r;
1064
1065 pa_sink_input_assert_ref(i);
1066 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1067 pa_assert(i->sink);
1068
1069 if (!pa_sink_input_may_move(i))
1070 return -PA_ERR_NOTSUPPORTED;
1071
1072 if ((r = pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], i)) < 0)
1073 return r;
1074
1075 origin = i->sink;
1076
1077 /* Kill directly connected outputs */
1078 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
1079 pa_assert(o != p);
1080 pa_source_output_kill(o);
1081 p = o;
1082 }
1083 pa_assert(pa_idxset_isempty(i->direct_outputs));
1084
1085 pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
1086
1087 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1088 pa_assert_se(i->sink->n_corked-- >= 1);
1089
1090 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
1091 pa_cvolume new_volume;
1092
1093 /* Make the absolute volume relative */
1094 i->virtual_volume = i->soft_volume;
1095 i->soft_volume = i->volume_factor;
1096
1097 /* We might need to update the sink's volume if we are in flat
1098 * volume mode. */
1099 pa_sink_update_flat_volume(i->sink, &new_volume);
1100 pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
1101 }
1102
1103 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_START_MOVE, i, 0, NULL) == 0);
1104
1105 pa_sink_update_status(i->sink);
1106 i->sink = NULL;
1107
1108 return 0;
1109 }
1110
1111 /* Called from main context */
1112 int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1113 pa_resampler *new_resampler;
1114
1115 pa_sink_input_assert_ref(i);
1116 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1117 pa_assert(!i->sink);
1118 pa_sink_assert_ref(dest);
1119
1120 if (!pa_sink_input_may_move_to(i, dest))
1121 return -PA_ERR_NOTSUPPORTED;
1122
1123 if (i->thread_info.resampler &&
1124 pa_sample_spec_equal(pa_resampler_output_sample_spec(i->thread_info.resampler), &dest->sample_spec) &&
1125 pa_channel_map_equal(pa_resampler_output_channel_map(i->thread_info.resampler), &dest->channel_map))
1126
1127 /* Try to reuse the old resampler if possible */
1128 new_resampler = i->thread_info.resampler;
1129
1130 else if ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ||
1131 !pa_sample_spec_equal(&i->sample_spec, &dest->sample_spec) ||
1132 !pa_channel_map_equal(&i->channel_map, &dest->channel_map)) {
1133
1134 /* Okey, we need a new resampler for the new sink */
1135
1136 if (!(new_resampler = pa_resampler_new(
1137 i->core->mempool,
1138 &i->sample_spec, &i->channel_map,
1139 &dest->sample_spec, &dest->channel_map,
1140 i->requested_resample_method,
1141 ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1142 ((i->flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1143 (i->core->disable_remixing || (i->flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
1144 pa_log_warn("Unsupported resampling operation.");
1145 return -PA_ERR_NOTSUPPORTED;
1146 }
1147 } else
1148 new_resampler = NULL;
1149
1150 i->sink = dest;
1151 i->save_sink = save;
1152 pa_idxset_put(dest->inputs, i, NULL);
1153
1154 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1155 i->sink->n_corked++;
1156
1157 /* Replace resampler and render queue */
1158 if (new_resampler != i->thread_info.resampler) {
1159
1160 if (i->thread_info.resampler)
1161 pa_resampler_free(i->thread_info.resampler);
1162 i->thread_info.resampler = new_resampler;
1163
1164 pa_memblockq_free(i->thread_info.render_memblockq);
1165
1166 i->thread_info.render_memblockq = pa_memblockq_new(
1167 0,
1168 MEMBLOCKQ_MAXLENGTH,
1169 0,
1170 pa_frame_size(&i->sink->sample_spec),
1171 0,
1172 1,
1173 0,
1174 &i->sink->silence);
1175 }
1176
1177 pa_sink_update_status(dest);
1178
1179 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
1180 pa_cvolume new_volume;
1181
1182 /* Make relative volume absolute again */
1183 pa_cvolume t = dest->virtual_volume;
1184 pa_cvolume_remap(&t, &dest->channel_map, &i->channel_map);
1185 pa_sw_cvolume_multiply(&i->virtual_volume, &i->virtual_volume, &t);
1186
1187 /* We might need to update the sink's volume if we are in flat volume mode. */
1188 pa_sink_update_flat_volume(i->sink, &new_volume);
1189 pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
1190 }
1191
1192 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_FINISH_MOVE, i, 0, NULL) == 0);
1193
1194 pa_log_debug("Successfully moved sink input %i to %s.", i->index, dest->name);
1195
1196 /* Notify everyone */
1197 if (i->moved)
1198 i->moved(i);
1199
1200 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], i);
1201 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1202
1203 return 0;
1204 }
1205
1206 /* Called from main context */
1207 int pa_sink_input_move_to(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1208 int r;
1209
1210 pa_sink_input_assert_ref(i);
1211 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1212 pa_assert(i->sink);
1213 pa_sink_assert_ref(dest);
1214
1215 if (dest == i->sink)
1216 return 0;
1217
1218 if (!pa_sink_input_may_move_to(i, dest))
1219 return -PA_ERR_NOTSUPPORTED;
1220
1221 if ((r = pa_sink_input_start_move(i)) < 0)
1222 return r;
1223
1224 if ((r = pa_sink_input_finish_move(i, dest, save)) < 0)
1225 return r;
1226
1227 return 0;
1228 }
1229
1230 /* Called from IO thread context */
1231 void pa_sink_input_set_state_within_thread(pa_sink_input *i, pa_sink_input_state_t state) {
1232 pa_bool_t corking, uncorking;
1233 pa_sink_input_assert_ref(i);
1234
1235 if (state == i->thread_info.state)
1236 return;
1237
1238 if ((state == PA_SINK_INPUT_DRAINED || state == PA_SINK_INPUT_RUNNING) &&
1239 !(i->thread_info.state == PA_SINK_INPUT_DRAINED || i->thread_info.state != PA_SINK_INPUT_RUNNING))
1240 pa_atomic_store(&i->thread_info.drained, 1);
1241
1242 corking = state == PA_SINK_INPUT_CORKED && i->thread_info.state == PA_SINK_INPUT_RUNNING;
1243 uncorking = i->thread_info.state == PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_RUNNING;
1244
1245 if (i->state_change)
1246 i->state_change(i, state);
1247
1248 i->thread_info.state = state;
1249
1250 if (corking) {
1251
1252 pa_log_debug("Requesting rewind due to corking");
1253
1254 /* This will tell the implementing sink input driver to rewind
1255 * so that the unplayed already mixed data is not lost */
1256 pa_sink_input_request_rewind(i, 0, TRUE, TRUE, FALSE);
1257
1258 } else if (uncorking) {
1259
1260 i->thread_info.underrun_for = (uint64_t) -1;
1261 i->thread_info.playing_for = 0;
1262
1263 pa_log_debug("Requesting rewind due to uncorking");
1264
1265 /* OK, we're being uncorked. Make sure we're not rewound when
1266 * the hw buffer is remixed and request a remix. */
1267 pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
1268 }
1269 }
1270
1271 /* Called from thread context, except when it is not. */
1272 int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1273 pa_sink_input *i = PA_SINK_INPUT(o);
1274 pa_sink_input_assert_ref(i);
1275
1276 switch (code) {
1277
1278 case PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME:
1279 if (!pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume)) {
1280 i->thread_info.soft_volume = i->soft_volume;
1281 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1282 }
1283 return 0;
1284
1285 case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE:
1286 if (i->thread_info.muted != i->muted) {
1287 i->thread_info.muted = i->muted;
1288 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1289 }
1290 return 0;
1291
1292 case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1293 pa_usec_t *r = userdata;
1294 pa_usec_t sink_usec = 0;
1295
1296 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(i->thread_info.render_memblockq), &i->sink->sample_spec);
1297
1298 if (i->sink->parent.process_msg(PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_GET_LATENCY, &sink_usec, 0, NULL) >= 0)
1299 r[1] += sink_usec;
1300
1301 return 0;
1302 }
1303
1304 case PA_SINK_INPUT_MESSAGE_SET_RATE:
1305
1306 i->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1307 pa_resampler_set_input_rate(i->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1308
1309 return 0;
1310
1311 case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1312 pa_sink_input *ssync;
1313
1314 pa_sink_input_set_state_within_thread(i, PA_PTR_TO_UINT(userdata));
1315
1316 for (ssync = i->thread_info.sync_prev; ssync; ssync = ssync->thread_info.sync_prev)
1317 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1318
1319 for (ssync = i->thread_info.sync_next; ssync; ssync = ssync->thread_info.sync_next)
1320 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1321
1322 return 0;
1323 }
1324
1325 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1326 pa_usec_t *usec = userdata;
1327
1328 *usec = pa_sink_input_set_requested_latency_within_thread(i, *usec);
1329 return 0;
1330 }
1331
1332 case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1333 pa_usec_t *r = userdata;
1334
1335 *r = i->thread_info.requested_sink_latency;
1336 return 0;
1337 }
1338 }
1339
1340 return -PA_ERR_NOTIMPLEMENTED;
1341 }
1342
1343 /* Called from main thread */
1344 pa_sink_input_state_t pa_sink_input_get_state(pa_sink_input *i) {
1345 pa_sink_input_assert_ref(i);
1346
1347 if (i->state == PA_SINK_INPUT_RUNNING || i->state == PA_SINK_INPUT_DRAINED)
1348 return pa_atomic_load(&i->thread_info.drained) ? PA_SINK_INPUT_DRAINED : PA_SINK_INPUT_RUNNING;
1349
1350 return i->state;
1351 }
1352
1353 /* Called from IO context */
1354 pa_bool_t pa_sink_input_safe_to_remove(pa_sink_input *i) {
1355 pa_sink_input_assert_ref(i);
1356
1357 if (PA_SINK_INPUT_IS_LINKED(i->thread_info.state))
1358 return pa_memblockq_is_empty(i->thread_info.render_memblockq);
1359
1360 return TRUE;
1361 }
1362
1363 /* Called from IO context */
1364 void pa_sink_input_request_rewind(pa_sink_input *i, size_t nbytes /* in our sample spec */, pa_bool_t rewrite, pa_bool_t flush, pa_bool_t dont_rewind_render) {
1365 size_t lbq;
1366
1367 /* If 'rewrite' is TRUE the sink is rewound as far as requested
1368 * and possible and the exact value of this is passed back the
1369 * implementor via process_rewind(). If 'flush' is also TRUE all
1370 * already rendered data is also dropped.
1371 *
1372 * If 'rewrite' is FALSE the sink is rewound as far as requested
1373 * and possible and the already rendered data is dropped so that
1374 * in the next iteration we read new data from the
1375 * implementor. This implies 'flush' is TRUE. If
1376 * dont_rewind_render is TRUE then the render memblockq is not
1377 * rewound. */
1378
1379 pa_sink_input_assert_ref(i);
1380
1381 nbytes = PA_MAX(i->thread_info.rewrite_nbytes, nbytes);
1382
1383 /* pa_log_debug("request rewrite %lu", (unsigned long) nbytes); */
1384
1385 /* We don't take rewind requests while we are corked */
1386 if (i->thread_info.state == PA_SINK_INPUT_CORKED)
1387 return;
1388
1389 pa_assert(rewrite || flush);
1390 pa_assert(!dont_rewind_render || !rewrite);
1391
1392 /* Calculate how much we can rewind locally without having to
1393 * touch the sink */
1394 if (rewrite)
1395 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
1396 else
1397 lbq = 0;
1398
1399 /* Check if rewinding for the maximum is requested, and if so, fix up */
1400 if (nbytes <= 0) {
1401
1402 /* Calculate maximum number of bytes that could be rewound in theory */
1403 nbytes = i->sink->thread_info.max_rewind + lbq;
1404
1405 /* Transform from sink domain */
1406 if (i->thread_info.resampler)
1407 nbytes = pa_resampler_request(i->thread_info.resampler, nbytes);
1408 }
1409
1410 if (i->thread_info.rewrite_nbytes != (size_t) -1) {
1411 if (rewrite) {
1412 /* Make sure to not overwrite over underruns */
1413 if (nbytes > i->thread_info.playing_for)
1414 nbytes = (size_t) i->thread_info.playing_for;
1415
1416 i->thread_info.rewrite_nbytes = nbytes;
1417 } else
1418 i->thread_info.rewrite_nbytes = (size_t) -1;
1419 }
1420
1421 i->thread_info.rewrite_flush =
1422 i->thread_info.rewrite_flush ||
1423 (flush && i->thread_info.rewrite_nbytes != 0);
1424
1425 i->thread_info.dont_rewind_render =
1426 i->thread_info.dont_rewind_render ||
1427 dont_rewind_render;
1428
1429 if (nbytes != (size_t) -1) {
1430
1431 /* Transform to sink domain */
1432 if (i->thread_info.resampler)
1433 nbytes = pa_resampler_result(i->thread_info.resampler, nbytes);
1434
1435 if (nbytes > lbq)
1436 pa_sink_request_rewind(i->sink, nbytes - lbq);
1437 else
1438 /* This call will make sure process_rewind() is called later */
1439 pa_sink_request_rewind(i->sink, 0);
1440 }
1441 }
1442
1443 /* Called from main context */
1444 pa_memchunk* pa_sink_input_get_silence(pa_sink_input *i, pa_memchunk *ret) {
1445 pa_sink_input_assert_ref(i);
1446 pa_assert(ret);
1447
1448 pa_silence_memchunk_get(
1449 &i->core->silence_cache,
1450 i->core->mempool,
1451 ret,
1452 &i->sample_spec,
1453 i->thread_info.resampler ? pa_resampler_max_block_size(i->thread_info.resampler) : 0);
1454
1455 return ret;
1456 }
1457
1458 /* Called from main context */
1459 void pa_sink_input_send_event(pa_sink_input *i, const char *event, pa_proplist *data) {
1460 pa_proplist *pl = NULL;
1461 pa_sink_input_send_event_hook_data hook_data;
1462
1463 pa_sink_input_assert_ref(i);
1464 pa_assert(event);
1465
1466 if (!i->send_event)
1467 return;
1468
1469 if (!data)
1470 data = pl = pa_proplist_new();
1471
1472 hook_data.sink_input = i;
1473 hook_data.data = data;
1474 hook_data.event = event;
1475
1476 if (pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SEND_EVENT], &hook_data) < 0)
1477 goto finish;
1478
1479 i->send_event(i, event, data);
1480
1481 finish:
1482 if (pl)
1483 pa_proplist_free(pl);
1484 }