2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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.
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.
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
30 #include <pulse/utf8.h>
31 #include <pulse/xmalloc.h>
32 #include <pulse/util.h>
33 #include <pulse/internal.h>
35 #include <pulsecore/sample-util.h>
36 #include <pulsecore/core-subscribe.h>
37 #include <pulsecore/log.h>
38 #include <pulsecore/play-memblockq.h>
39 #include <pulsecore/namereg.h>
40 #include <pulsecore/core-util.h>
42 #include "sink-input.h"
44 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
45 #define CONVERT_BUFFER_LENGTH (PA_PAGE_SIZE)
47 PA_DEFINE_PUBLIC_CLASS(pa_sink_input, pa_msgobject);
49 static void sink_input_free(pa_object *o);
50 static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v);
52 static int check_passthrough_connection(pa_bool_t passthrough, pa_sink *dest) {
53 if (pa_sink_is_passthrough(dest)) {
54 pa_log_warn("Sink is already connected to PASSTHROUGH input");
58 /* If current input(s) exist, check new input is not PASSTHROUGH */
59 if (pa_idxset_size(dest->inputs) > 0 && passthrough) {
60 pa_log_warn("Sink is already connected, cannot accept new PASSTHROUGH INPUT");
67 pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data) {
71 data->resample_method = PA_RESAMPLER_INVALID;
72 data->proplist = pa_proplist_new();
73 data->volume_writable = TRUE;
78 void pa_sink_input_new_data_set_sample_spec(pa_sink_input_new_data *data, const pa_sample_spec *spec) {
81 if ((data->sample_spec_is_set = !!spec))
82 data->sample_spec = *spec;
85 void pa_sink_input_new_data_set_channel_map(pa_sink_input_new_data *data, const pa_channel_map *map) {
88 if ((data->channel_map_is_set = !!map))
89 data->channel_map = *map;
92 pa_bool_t pa_sink_input_new_data_is_passthrough(pa_sink_input_new_data *data) {
95 if (PA_LIKELY(data->format) && PA_UNLIKELY(!pa_format_info_is_pcm(data->format)))
98 if (PA_UNLIKELY(data->flags & PA_SINK_INPUT_PASSTHROUGH))
104 void pa_sink_input_new_data_set_volume(pa_sink_input_new_data *data, const pa_cvolume *volume) {
106 pa_assert(data->volume_writable);
108 if ((data->volume_is_set = !!volume))
109 data->volume = *volume;
112 void pa_sink_input_new_data_apply_volume_factor(pa_sink_input_new_data *data, const pa_cvolume *volume_factor) {
114 pa_assert(volume_factor);
116 if (data->volume_factor_is_set)
117 pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
119 data->volume_factor_is_set = TRUE;
120 data->volume_factor = *volume_factor;
124 void pa_sink_input_new_data_apply_volume_factor_sink(pa_sink_input_new_data *data, const pa_cvolume *volume_factor) {
126 pa_assert(volume_factor);
128 if (data->volume_factor_sink_is_set)
129 pa_sw_cvolume_multiply(&data->volume_factor_sink, &data->volume_factor_sink, volume_factor);
131 data->volume_factor_sink_is_set = TRUE;
132 data->volume_factor_sink = *volume_factor;
136 void pa_sink_input_new_data_set_muted(pa_sink_input_new_data *data, pa_bool_t mute) {
139 data->muted_is_set = TRUE;
140 data->muted = !!mute;
143 pa_bool_t pa_sink_input_new_data_set_sink(pa_sink_input_new_data *data, pa_sink *s, pa_bool_t save) {
144 pa_bool_t ret = TRUE;
145 pa_idxset *formats = NULL;
150 if (!data->req_formats) {
151 /* We're not working with the extended API */
153 data->save_sink = save;
155 /* Extended API: let's see if this sink supports the formats the client can provide */
156 formats = pa_sink_check_formats(s, data->req_formats);
158 if (formats && !pa_idxset_isempty(formats)) {
159 /* Sink supports at least one of the requested formats */
161 data->save_sink = save;
162 if (data->nego_formats)
163 pa_idxset_free(data->nego_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
164 data->nego_formats = formats;
166 /* Sink doesn't support any of the formats requested by the client */
168 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
176 pa_bool_t pa_sink_input_new_data_set_formats(pa_sink_input_new_data *data, pa_idxset *formats) {
180 if (data->req_formats)
181 pa_idxset_free(formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
183 data->req_formats = formats;
186 /* Trigger format negotiation */
187 return pa_sink_input_new_data_set_sink(data, data->sink, data->save_sink);
193 void pa_sink_input_new_data_done(pa_sink_input_new_data *data) {
196 if (data->req_formats)
197 pa_idxset_free(data->req_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
199 if (data->nego_formats)
200 pa_idxset_free(data->nego_formats, (pa_free2_cb_t) pa_format_info_free2, NULL);
203 pa_format_info_free(data->format);
205 pa_proplist_free(data->proplist);
208 /* Called from main context */
209 static void reset_callbacks(pa_sink_input *i) {
213 i->process_rewind = NULL;
214 i->update_max_rewind = NULL;
215 i->update_max_request = NULL;
216 i->update_sink_requested_latency = NULL;
217 i->update_sink_latency_range = NULL;
218 i->update_sink_fixed_latency = NULL;
222 i->suspend_within_thread = NULL;
225 i->get_latency = NULL;
226 i->state_change = NULL;
227 i->may_move_to = NULL;
228 i->send_event = NULL;
229 i->volume_changed = NULL;
230 i->mute_changed = NULL;
233 /* Called from main context */
234 int pa_sink_input_new(
237 pa_sink_input_new_data *data) {
240 pa_resampler *resampler = NULL;
241 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
242 pa_channel_map original_cm;
251 pa_assert_ctl_context();
254 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
256 if (data->origin_sink && (data->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER))
257 data->volume_writable = FALSE;
259 if (!data->req_formats) {
260 /* From this point on, we want to work only with formats, and get back
261 * to using the sample spec and channel map after all decisions w.r.t.
262 * routing are complete. */
263 pa_idxset *tmp = pa_idxset_new(NULL, NULL);
264 pa_format_info *f = pa_format_info_from_sample_spec(&data->sample_spec,
265 data->channel_map_is_set ? &data->channel_map : NULL);
266 pa_idxset_put(tmp, f, NULL);
267 pa_sink_input_new_data_set_formats(data, tmp);
270 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_NEW], data)) < 0)
273 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
276 pa_sink *sink = pa_namereg_get(core, NULL, PA_NAMEREG_SINK);
277 pa_return_val_if_fail(sink, -PA_ERR_NOENTITY);
278 pa_sink_input_new_data_set_sink(data, sink, FALSE);
280 /* Routing's done, we have a sink. Now let's fix the format and set up the
283 /* If something didn't pick a format for us, pick the top-most format since
284 * we assume this is sorted in priority order */
285 if (!data->format && data->nego_formats && !pa_idxset_isempty(data->nego_formats))
286 data->format = pa_format_info_copy(pa_idxset_first(data->nego_formats, NULL));
288 pa_return_val_if_fail(data->format, -PA_ERR_NOTSUPPORTED);
290 /* Now populate the sample spec and format according to the final
291 * format that we've negotiated */
292 if (PA_LIKELY(data->format->encoding == PA_ENCODING_PCM)) {
293 pa_return_val_if_fail(pa_format_info_to_sample_spec(data->format, &ss, &map), -PA_ERR_INVALID);
294 pa_sink_input_new_data_set_sample_spec(data, &ss);
295 if (pa_channel_map_valid(&map))
296 pa_sink_input_new_data_set_channel_map(data, &map);
298 pa_return_val_if_fail(pa_format_info_to_sample_spec_fake(data->format, &ss), -PA_ERR_INVALID);
299 pa_sink_input_new_data_set_sample_spec(data, &ss);
302 pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data->sink)), -PA_ERR_BADSTATE);
303 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);
305 r = check_passthrough_connection(pa_sink_input_new_data_is_passthrough(data), data->sink);
309 if (!data->sample_spec_is_set)
310 data->sample_spec = data->sink->sample_spec;
312 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
314 if (!data->channel_map_is_set) {
315 if (pa_channel_map_compatible(&data->sink->channel_map, &data->sample_spec))
316 data->channel_map = data->sink->channel_map;
318 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
321 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
323 /* Don't restore (or save) stream volume for passthrough streams and
324 * prevent attenuation/gain */
325 if (pa_sink_input_new_data_is_passthrough(data)) {
326 data->volume_is_set = TRUE;
327 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
328 data->volume_is_absolute = TRUE;
329 data->save_volume = FALSE;
332 if (!data->volume_is_set) {
333 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
334 data->volume_is_absolute = FALSE;
335 data->save_volume = FALSE;
338 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
340 if (!data->volume_factor_is_set)
341 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
343 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
345 if (!data->volume_factor_sink_is_set)
346 pa_cvolume_reset(&data->volume_factor_sink, data->sink->sample_spec.channels);
348 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_sink, &data->sink->sample_spec), -PA_ERR_INVALID);
350 if (!data->muted_is_set)
353 if (data->flags & PA_SINK_INPUT_FIX_FORMAT)
354 data->sample_spec.format = data->sink->sample_spec.format;
356 if (data->flags & PA_SINK_INPUT_FIX_RATE)
357 data->sample_spec.rate = data->sink->sample_spec.rate;
359 original_cm = data->channel_map;
361 if (data->flags & PA_SINK_INPUT_FIX_CHANNELS) {
362 data->sample_spec.channels = data->sink->sample_spec.channels;
363 data->channel_map = data->sink->channel_map;
366 pa_assert(pa_sample_spec_valid(&data->sample_spec));
367 pa_assert(pa_channel_map_valid(&data->channel_map));
369 /* Due to the fixing of the sample spec the volume might not match anymore */
370 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
372 if (data->resample_method == PA_RESAMPLER_INVALID)
373 data->resample_method = core->resample_method;
375 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
377 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], data)) < 0)
380 if ((data->flags & PA_SINK_INPUT_NO_CREATE_ON_SUSPEND) &&
381 pa_sink_get_state(data->sink) == PA_SINK_SUSPENDED) {
382 pa_log_warn("Failed to create sink input: sink is suspended.");
383 return -PA_ERR_BADSTATE;
386 if (pa_idxset_size(data->sink->inputs) >= PA_MAX_INPUTS_PER_SINK) {
387 pa_log_warn("Failed to create sink input: too many inputs per sink.");
388 return -PA_ERR_TOOLARGE;
391 if ((data->flags & PA_SINK_INPUT_VARIABLE_RATE) ||
392 !pa_sample_spec_equal(&data->sample_spec, &data->sink->sample_spec) ||
393 !pa_channel_map_equal(&data->channel_map, &data->sink->channel_map)) {
395 /* Note: for passthrough content we need to adjust the output rate to that of the current sink-input */
396 if (!pa_sink_input_new_data_is_passthrough(data)) /* no resampler for passthrough content */
397 if (!(resampler = pa_resampler_new(
399 &data->sample_spec, &data->channel_map,
400 &data->sink->sample_spec, &data->sink->channel_map,
401 data->resample_method,
402 ((data->flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
403 ((data->flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
404 (core->disable_remixing || (data->flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
405 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
406 pa_log_warn("Unsupported resampling operation.");
407 return -PA_ERR_NOTSUPPORTED;
411 i = pa_msgobject_new(pa_sink_input);
412 i->parent.parent.free = sink_input_free;
413 i->parent.process_msg = pa_sink_input_process_msg;
416 i->state = PA_SINK_INPUT_INIT;
417 i->flags = data->flags;
418 i->proplist = pa_proplist_copy(data->proplist);
419 i->driver = pa_xstrdup(pa_path_get_filename(data->driver));
420 i->module = data->module;
421 i->sink = data->sink;
422 i->origin_sink = data->origin_sink;
423 i->client = data->client;
425 i->requested_resample_method = data->resample_method;
426 i->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
427 i->sample_spec = data->sample_spec;
428 i->channel_map = data->channel_map;
429 i->format = pa_format_info_copy(data->format);
431 if (!data->volume_is_absolute && pa_sink_flat_volume_enabled(i->sink)) {
434 /* When the 'absolute' bool is not set then we'll treat the volume
435 * as relative to the sink volume even in flat volume mode */
436 remapped = data->sink->reference_volume;
437 pa_cvolume_remap(&remapped, &data->sink->channel_map, &data->channel_map);
438 pa_sw_cvolume_multiply(&i->volume, &data->volume, &remapped);
440 i->volume = data->volume;
442 i->volume_factor = data->volume_factor;
443 i->volume_factor_sink = data->volume_factor_sink;
444 i->real_ratio = i->reference_ratio = data->volume;
445 pa_cvolume_reset(&i->soft_volume, i->sample_spec.channels);
446 pa_cvolume_reset(&i->real_ratio, i->sample_spec.channels);
447 i->volume_writable = data->volume_writable;
448 i->save_volume = data->save_volume;
449 i->save_sink = data->save_sink;
450 i->save_muted = data->save_muted;
452 i->muted = data->muted;
454 if (data->sync_base) {
455 i->sync_next = data->sync_base->sync_next;
456 i->sync_prev = data->sync_base;
458 if (data->sync_base->sync_next)
459 data->sync_base->sync_next->sync_prev = i;
460 data->sync_base->sync_next = i;
462 i->sync_next = i->sync_prev = NULL;
464 i->direct_outputs = pa_idxset_new(NULL, NULL);
469 i->thread_info.state = i->state;
470 i->thread_info.attached = FALSE;
471 pa_atomic_store(&i->thread_info.drained, 1);
472 i->thread_info.sample_spec = i->sample_spec;
473 i->thread_info.resampler = resampler;
474 i->thread_info.soft_volume = i->soft_volume;
475 i->thread_info.muted = i->muted;
476 i->thread_info.requested_sink_latency = (pa_usec_t) -1;
477 i->thread_info.rewrite_nbytes = 0;
478 i->thread_info.rewrite_flush = FALSE;
479 i->thread_info.dont_rewind_render = FALSE;
480 i->thread_info.underrun_for = (uint64_t) -1;
481 i->thread_info.playing_for = 0;
482 i->thread_info.direct_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
484 i->thread_info.render_memblockq = pa_memblockq_new(
488 pa_frame_size(&i->sink->sample_spec),
494 pa_assert_se(pa_idxset_put(core->sink_inputs, i, &i->index) == 0);
495 pa_assert_se(pa_idxset_put(i->sink->inputs, pa_sink_input_ref(i), NULL) == 0);
498 pa_assert_se(pa_idxset_put(i->client->sink_inputs, i, NULL) >= 0);
500 pt = pa_proplist_to_string_sep(i->proplist, "\n ");
501 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
503 pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)),
505 pa_sample_spec_snprint(st, sizeof(st), &i->sample_spec),
506 pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map),
510 /* Don't forget to call pa_sink_input_put! */
516 /* Called from main context */
517 static void update_n_corked(pa_sink_input *i, pa_sink_input_state_t state) {
519 pa_assert_ctl_context();
524 if (i->state == PA_SINK_INPUT_CORKED && state != PA_SINK_INPUT_CORKED)
525 pa_assert_se(i->sink->n_corked -- >= 1);
526 else if (i->state != PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_CORKED)
530 /* Called from main context */
531 static void sink_input_set_state(pa_sink_input *i, pa_sink_input_state_t state) {
532 pa_sink_input *ssync;
534 pa_assert_ctl_context();
536 if (state == PA_SINK_INPUT_DRAINED)
537 state = PA_SINK_INPUT_RUNNING;
539 if (i->state == state)
542 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);
544 update_n_corked(i, state);
547 for (ssync = i->sync_prev; ssync; ssync = ssync->sync_prev) {
548 update_n_corked(ssync, state);
549 ssync->state = state;
551 for (ssync = i->sync_next; ssync; ssync = ssync->sync_next) {
552 update_n_corked(ssync, state);
553 ssync->state = state;
556 if (state != PA_SINK_INPUT_UNLINKED) {
557 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], i);
559 for (ssync = i->sync_prev; ssync; ssync = ssync->sync_prev)
560 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], ssync);
562 for (ssync = i->sync_next; ssync; ssync = ssync->sync_next)
563 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], ssync);
565 if (PA_SINK_INPUT_IS_LINKED(state))
566 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
569 pa_sink_update_status(i->sink);
572 /* Called from main context */
573 void pa_sink_input_unlink(pa_sink_input *i) {
575 pa_source_output *o, *p = NULL;
578 pa_assert_ctl_context();
580 /* See pa_sink_unlink() for a couple of comments how this function
583 pa_sink_input_ref(i);
585 linked = PA_SINK_INPUT_IS_LINKED(i->state);
588 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], i);
591 i->sync_prev->sync_next = i->sync_next;
593 i->sync_next->sync_prev = i->sync_prev;
595 i->sync_prev = i->sync_next = NULL;
597 pa_idxset_remove_by_data(i->core->sink_inputs, i, NULL);
600 if (pa_idxset_remove_by_data(i->sink->inputs, i, NULL))
601 pa_sink_input_unref(i);
604 pa_idxset_remove_by_data(i->client->sink_inputs, i, NULL);
606 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
608 pa_source_output_kill(o);
612 update_n_corked(i, PA_SINK_INPUT_UNLINKED);
613 i->state = PA_SINK_INPUT_UNLINKED;
615 if (linked && i->sink) {
616 if (pa_sink_input_is_passthrough(i))
617 pa_sink_leave_passthrough(i->sink);
619 /* We might need to update the sink's volume if we are in flat volume mode. */
620 if (pa_sink_flat_volume_enabled(i->sink))
621 pa_sink_set_volume(i->sink, NULL, FALSE, FALSE);
623 if (i->sink->asyncmsgq)
624 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_REMOVE_INPUT, i, 0, NULL) == 0);
630 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
631 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], i);
635 pa_sink_update_status(i->sink);
639 pa_core_maybe_vacuum(i->core);
641 pa_sink_input_unref(i);
644 /* Called from main context */
645 static void sink_input_free(pa_object *o) {
646 pa_sink_input* i = PA_SINK_INPUT(o);
649 pa_assert_ctl_context();
650 pa_assert(pa_sink_input_refcnt(i) == 0);
652 if (PA_SINK_INPUT_IS_LINKED(i->state))
653 pa_sink_input_unlink(i);
655 pa_log_info("Freeing input %u \"%s\"", i->index, pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)));
657 /* Side note: this function must be able to destruct properly any
658 * kind of sink input in any state, even those which are
659 * "half-moved" or are connected to sinks that have no asyncmsgq
660 * and are hence half-destructed themselves! */
662 if (i->thread_info.render_memblockq)
663 pa_memblockq_free(i->thread_info.render_memblockq);
665 if (i->thread_info.resampler)
666 pa_resampler_free(i->thread_info.resampler);
669 pa_format_info_free(i->format);
672 pa_proplist_free(i->proplist);
674 if (i->direct_outputs)
675 pa_idxset_free(i->direct_outputs, NULL, NULL);
677 if (i->thread_info.direct_outputs)
678 pa_hashmap_free(i->thread_info.direct_outputs, NULL, NULL);
684 /* Called from main context */
685 void pa_sink_input_put(pa_sink_input *i) {
686 pa_sink_input_state_t state;
688 pa_sink_input_assert_ref(i);
689 pa_assert_ctl_context();
691 pa_assert(i->state == PA_SINK_INPUT_INIT);
693 /* The following fields must be initialized properly */
695 pa_assert(i->process_rewind);
698 state = i->flags & PA_SINK_INPUT_START_CORKED ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING;
700 update_n_corked(i, state);
703 /* We might need to update the sink's volume if we are in flat volume mode. */
704 if (pa_sink_flat_volume_enabled(i->sink))
705 pa_sink_set_volume(i->sink, NULL, FALSE, i->save_volume);
707 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
708 pa_assert(pa_cvolume_is_norm(&i->volume));
709 pa_assert(pa_cvolume_is_norm(&i->reference_ratio));
712 set_real_ratio(i, &i->volume);
715 if (pa_sink_input_is_passthrough(i))
716 pa_sink_enter_passthrough(i->sink);
718 i->thread_info.soft_volume = i->soft_volume;
719 i->thread_info.muted = i->muted;
721 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_ADD_INPUT, i, 0, NULL) == 0);
723 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW, i->index);
724 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PUT], i);
726 pa_sink_update_status(i->sink);
729 /* Called from main context */
730 void pa_sink_input_kill(pa_sink_input*i) {
731 pa_sink_input_assert_ref(i);
732 pa_assert_ctl_context();
733 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
738 /* Called from main context */
739 pa_usec_t pa_sink_input_get_latency(pa_sink_input *i, pa_usec_t *sink_latency) {
740 pa_usec_t r[2] = { 0, 0 };
742 pa_sink_input_assert_ref(i);
743 pa_assert_ctl_context();
744 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
746 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
749 r[0] += i->get_latency(i);
752 *sink_latency = r[1];
757 /* Called from thread context */
758 void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, pa_memchunk *chunk, pa_cvolume *volume) {
759 pa_bool_t do_volume_adj_here, need_volume_factor_sink;
760 pa_bool_t volume_is_norm;
761 size_t block_size_max_sink, block_size_max_sink_input;
764 pa_sink_input_assert_ref(i);
765 pa_sink_input_assert_io_context(i);
766 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
767 pa_assert(pa_frame_aligned(slength, &i->sink->sample_spec));
771 /* pa_log_debug("peek"); */
773 block_size_max_sink_input = i->thread_info.resampler ?
774 pa_resampler_max_block_size(i->thread_info.resampler) :
775 pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sample_spec);
777 block_size_max_sink = pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sink->sample_spec);
779 /* Default buffer size */
781 slength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sink->sample_spec);
783 if (slength > block_size_max_sink)
784 slength = block_size_max_sink;
786 if (i->thread_info.resampler) {
787 ilength = pa_resampler_request(i->thread_info.resampler, slength);
790 ilength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sample_spec);
794 if (ilength > block_size_max_sink_input)
795 ilength = block_size_max_sink_input;
797 /* If the channel maps of the sink and this stream differ, we need
798 * to adjust the volume *before* we resample. Otherwise we can do
799 * it after and leave it for the sink code */
801 do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map);
802 volume_is_norm = pa_cvolume_is_norm(&i->thread_info.soft_volume) && !i->thread_info.muted;
803 need_volume_factor_sink = !pa_cvolume_is_norm(&i->volume_factor_sink);
805 while (!pa_memblockq_is_readable(i->thread_info.render_memblockq)) {
808 /* There's nothing in our render queue. We need to fill it up
809 * with data from the implementor. */
811 if (i->thread_info.state == PA_SINK_INPUT_CORKED ||
812 i->pop(i, ilength, &tchunk) < 0) {
814 /* OK, we're corked or the implementor didn't give us any
815 * data, so let's just hand out silence */
816 pa_atomic_store(&i->thread_info.drained, 1);
818 pa_memblockq_seek(i->thread_info.render_memblockq, (int64_t) slength, PA_SEEK_RELATIVE, TRUE);
819 i->thread_info.playing_for = 0;
820 if (i->thread_info.underrun_for != (uint64_t) -1)
821 i->thread_info.underrun_for += ilength;
825 pa_atomic_store(&i->thread_info.drained, 0);
827 pa_assert(tchunk.length > 0);
828 pa_assert(tchunk.memblock);
830 i->thread_info.underrun_for = 0;
831 i->thread_info.playing_for += tchunk.length;
833 while (tchunk.length > 0) {
835 pa_bool_t nvfs = need_volume_factor_sink;
838 pa_memblock_ref(wchunk.memblock);
840 if (wchunk.length > block_size_max_sink_input)
841 wchunk.length = block_size_max_sink_input;
843 /* It might be necessary to adjust the volume here */
844 if (do_volume_adj_here && !volume_is_norm) {
845 pa_memchunk_make_writable(&wchunk, 0);
847 if (i->thread_info.muted) {
848 pa_silence_memchunk(&wchunk, &i->thread_info.sample_spec);
851 } else if (!i->thread_info.resampler && nvfs) {
854 /* If we don't need a resampler we can merge the
855 * post and the pre volume adjustment into one */
857 pa_sw_cvolume_multiply(&v, &i->thread_info.soft_volume, &i->volume_factor_sink);
858 pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &v);
862 pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &i->thread_info.soft_volume);
865 if (!i->thread_info.resampler) {
868 pa_memchunk_make_writable(&wchunk, 0);
869 pa_volume_memchunk(&wchunk, &i->sink->sample_spec, &i->volume_factor_sink);
872 pa_memblockq_push_align(i->thread_info.render_memblockq, &wchunk);
875 pa_resampler_run(i->thread_info.resampler, &wchunk, &rchunk);
877 /* pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
879 if (rchunk.memblock) {
882 pa_memchunk_make_writable(&rchunk, 0);
883 pa_volume_memchunk(&rchunk, &i->sink->sample_spec, &i->volume_factor_sink);
886 pa_memblockq_push_align(i->thread_info.render_memblockq, &rchunk);
887 pa_memblock_unref(rchunk.memblock);
891 pa_memblock_unref(wchunk.memblock);
893 tchunk.index += wchunk.length;
894 tchunk.length -= wchunk.length;
897 pa_memblock_unref(tchunk.memblock);
900 pa_assert_se(pa_memblockq_peek(i->thread_info.render_memblockq, chunk) >= 0);
902 pa_assert(chunk->length > 0);
903 pa_assert(chunk->memblock);
905 /* pa_log_debug("peeking %lu", (unsigned long) chunk->length); */
907 if (chunk->length > block_size_max_sink)
908 chunk->length = block_size_max_sink;
910 /* Let's see if we had to apply the volume adjustment ourselves,
911 * or if this can be done by the sink for us */
913 if (do_volume_adj_here)
914 /* We had different channel maps, so we already did the adjustment */
915 pa_cvolume_reset(volume, i->sink->sample_spec.channels);
916 else if (i->thread_info.muted)
917 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
918 pa_cvolume_mute(volume, i->sink->sample_spec.channels);
920 *volume = i->thread_info.soft_volume;
923 /* Called from thread context */
924 void pa_sink_input_drop(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
926 pa_sink_input_assert_ref(i);
927 pa_sink_input_assert_io_context(i);
928 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
929 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
930 pa_assert(nbytes > 0);
932 /* pa_log_debug("dropping %lu", (unsigned long) nbytes); */
934 pa_memblockq_drop(i->thread_info.render_memblockq, nbytes);
937 /* Called from thread context */
938 void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
940 pa_bool_t called = FALSE;
942 pa_sink_input_assert_ref(i);
943 pa_sink_input_assert_io_context(i);
944 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
945 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
947 /* pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes, (unsigned long) i->thread_info.rewrite_nbytes); */
949 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
951 if (nbytes > 0 && !i->thread_info.dont_rewind_render) {
952 pa_log_debug("Have to rewind %lu bytes on render memblockq.", (unsigned long) nbytes);
953 pa_memblockq_rewind(i->thread_info.render_memblockq, nbytes);
956 if (i->thread_info.rewrite_nbytes == (size_t) -1) {
958 /* We were asked to drop all buffered data, and rerequest new
959 * data from implementor the next time push() is called */
961 pa_memblockq_flush_write(i->thread_info.render_memblockq, TRUE);
963 } else if (i->thread_info.rewrite_nbytes > 0) {
964 size_t max_rewrite, amount;
966 /* Calculate how much make sense to rewrite at most */
967 max_rewrite = nbytes + lbq;
969 /* Transform into local domain */
970 if (i->thread_info.resampler)
971 max_rewrite = pa_resampler_request(i->thread_info.resampler, max_rewrite);
973 /* Calculate how much of the rewinded data should actually be rewritten */
974 amount = PA_MIN(i->thread_info.rewrite_nbytes, max_rewrite);
977 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) amount);
979 /* Tell the implementor */
980 if (i->process_rewind)
981 i->process_rewind(i, amount);
984 /* Convert back to to sink domain */
985 if (i->thread_info.resampler)
986 amount = pa_resampler_result(i->thread_info.resampler, amount);
989 /* Ok, now update the write pointer */
990 pa_memblockq_seek(i->thread_info.render_memblockq, - ((int64_t) amount), PA_SEEK_RELATIVE, TRUE);
992 if (i->thread_info.rewrite_flush)
993 pa_memblockq_silence(i->thread_info.render_memblockq);
995 /* And reset the resampler */
996 if (i->thread_info.resampler)
997 pa_resampler_reset(i->thread_info.resampler);
1002 if (i->process_rewind)
1003 i->process_rewind(i, 0);
1005 i->thread_info.rewrite_nbytes = 0;
1006 i->thread_info.rewrite_flush = FALSE;
1007 i->thread_info.dont_rewind_render = FALSE;
1010 /* Called from thread context */
1011 size_t pa_sink_input_get_max_rewind(pa_sink_input *i) {
1012 pa_sink_input_assert_ref(i);
1013 pa_sink_input_assert_io_context(i);
1015 return i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, i->sink->thread_info.max_rewind) : i->sink->thread_info.max_rewind;
1018 /* Called from thread context */
1019 size_t pa_sink_input_get_max_request(pa_sink_input *i) {
1020 pa_sink_input_assert_ref(i);
1021 pa_sink_input_assert_io_context(i);
1023 /* We're not verifying the status here, to allow this to be called
1024 * in the state change handler between _INIT and _RUNNING */
1026 return i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, i->sink->thread_info.max_request) : i->sink->thread_info.max_request;
1029 /* Called from thread context */
1030 void pa_sink_input_update_max_rewind(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */) {
1031 pa_sink_input_assert_ref(i);
1032 pa_sink_input_assert_io_context(i);
1033 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
1034 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
1036 pa_memblockq_set_maxrewind(i->thread_info.render_memblockq, nbytes);
1038 if (i->update_max_rewind)
1039 i->update_max_rewind(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
1042 /* Called from thread context */
1043 void pa_sink_input_update_max_request(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */) {
1044 pa_sink_input_assert_ref(i);
1045 pa_sink_input_assert_io_context(i);
1046 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
1047 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
1049 if (i->update_max_request)
1050 i->update_max_request(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
1053 /* Called from thread context */
1054 pa_usec_t pa_sink_input_set_requested_latency_within_thread(pa_sink_input *i, pa_usec_t usec) {
1055 pa_sink_input_assert_ref(i);
1056 pa_sink_input_assert_io_context(i);
1058 if (!(i->sink->flags & PA_SINK_DYNAMIC_LATENCY))
1059 usec = i->sink->thread_info.fixed_latency;
1061 if (usec != (pa_usec_t) -1)
1062 usec = PA_CLAMP(usec, i->sink->thread_info.min_latency, i->sink->thread_info.max_latency);
1064 i->thread_info.requested_sink_latency = usec;
1065 pa_sink_invalidate_requested_latency(i->sink, TRUE);
1070 /* Called from main context */
1071 pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
1072 pa_sink_input_assert_ref(i);
1073 pa_assert_ctl_context();
1075 if (PA_SINK_INPUT_IS_LINKED(i->state) && i->sink) {
1076 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
1080 /* If this sink input is not realized yet or we are being moved,
1081 * we have to touch the thread info data directly */
1084 if (!(i->sink->flags & PA_SINK_DYNAMIC_LATENCY))
1085 usec = pa_sink_get_fixed_latency(i->sink);
1087 if (usec != (pa_usec_t) -1) {
1088 pa_usec_t min_latency, max_latency;
1089 pa_sink_get_latency_range(i->sink, &min_latency, &max_latency);
1090 usec = PA_CLAMP(usec, min_latency, max_latency);
1094 i->thread_info.requested_sink_latency = usec;
1099 /* Called from main context */
1100 pa_usec_t pa_sink_input_get_requested_latency(pa_sink_input *i) {
1101 pa_sink_input_assert_ref(i);
1102 pa_assert_ctl_context();
1104 if (PA_SINK_INPUT_IS_LINKED(i->state) && i->sink) {
1106 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
1110 /* If this sink input is not realized yet or we are being moved,
1111 * we have to touch the thread info data directly */
1113 return i->thread_info.requested_sink_latency;
1116 /* Called from main context */
1117 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
1120 pa_sink_input_assert_ref(i);
1121 pa_assert_ctl_context();
1122 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1124 pa_assert(pa_cvolume_valid(volume));
1125 pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &i->sample_spec));
1126 pa_assert(i->volume_writable);
1128 if (!absolute && pa_sink_flat_volume_enabled(i->sink)) {
1129 v = i->sink->reference_volume;
1130 pa_cvolume_remap(&v, &i->sink->channel_map, &i->channel_map);
1132 if (pa_cvolume_compatible(volume, &i->sample_spec))
1133 volume = pa_sw_cvolume_multiply(&v, &v, volume);
1135 volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
1137 if (!pa_cvolume_compatible(volume, &i->sample_spec)) {
1139 volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
1143 if (pa_cvolume_equal(volume, &i->volume)) {
1144 i->save_volume = i->save_volume || save;
1148 i->volume = *volume;
1149 i->save_volume = save;
1151 if (pa_sink_flat_volume_enabled(i->sink)) {
1152 /* We are in flat volume mode, so let's update all sink input
1153 * volumes and update the flat volume of the sink */
1155 pa_sink_set_volume(i->sink, NULL, TRUE, save);
1158 /* OK, we are in normal volume mode. The volume only affects
1160 set_real_ratio(i, volume);
1162 /* Copy the new soft_volume to the thread_info struct */
1163 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
1166 /* The volume changed, let's tell people so */
1167 if (i->volume_changed)
1168 i->volume_changed(i);
1170 /* The virtual volume changed, let's tell people so */
1171 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1174 /* Called from main context */
1175 static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v) {
1176 pa_sink_input_assert_ref(i);
1177 pa_assert_ctl_context();
1178 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1179 pa_assert(!v || pa_cvolume_compatible(v, &i->sample_spec));
1181 /* This basically calculates:
1183 * i->real_ratio := v
1184 * i->soft_volume := i->real_ratio * i->volume_factor */
1189 pa_cvolume_reset(&i->real_ratio, i->sample_spec.channels);
1191 pa_sw_cvolume_multiply(&i->soft_volume, &i->real_ratio, &i->volume_factor);
1192 /* We don't copy the data to the thread_info data. That's left for someone else to do */
1195 /* Called from main or I/O context */
1196 pa_bool_t pa_sink_input_is_passthrough(pa_sink_input *i) {
1197 pa_sink_input_assert_ref(i);
1199 if (PA_UNLIKELY(!pa_format_info_is_pcm(i->format)))
1202 if (PA_UNLIKELY(i->flags & PA_SINK_INPUT_PASSTHROUGH))
1208 /* Called from main context */
1209 pa_bool_t pa_sink_input_is_volume_readable(pa_sink_input *i) {
1210 pa_sink_input_assert_ref(i);
1211 pa_assert_ctl_context();
1213 return !pa_sink_input_is_passthrough(i);
1216 /* Called from main context */
1217 pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i, pa_cvolume *volume, pa_bool_t absolute) {
1218 pa_sink_input_assert_ref(i);
1219 pa_assert_ctl_context();
1220 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1221 pa_assert(pa_sink_input_is_volume_readable(i));
1223 if (absolute || !pa_sink_flat_volume_enabled(i->sink))
1224 *volume = i->volume;
1226 *volume = i->reference_ratio;
1231 /* Called from main context */
1232 void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
1233 pa_sink_input_assert_ref(i);
1234 pa_assert_ctl_context();
1235 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1237 if (!i->muted == !mute) {
1238 i->save_muted = i->save_muted || mute;
1243 i->save_muted = save;
1245 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
1247 /* The mute status changed, let's tell people so */
1248 if (i->mute_changed)
1251 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1254 /* Called from main context */
1255 pa_bool_t pa_sink_input_get_mute(pa_sink_input *i) {
1256 pa_sink_input_assert_ref(i);
1257 pa_assert_ctl_context();
1258 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1263 /* Called from main thread */
1264 void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_proplist *p) {
1265 pa_sink_input_assert_ref(i);
1266 pa_assert_ctl_context();
1269 pa_proplist_update(i->proplist, mode, p);
1271 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
1272 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
1273 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1277 /* Called from main context */
1278 void pa_sink_input_cork(pa_sink_input *i, pa_bool_t b) {
1279 pa_sink_input_assert_ref(i);
1280 pa_assert_ctl_context();
1281 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1283 sink_input_set_state(i, b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING);
1286 /* Called from main context */
1287 int pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate) {
1288 pa_sink_input_assert_ref(i);
1289 pa_assert_ctl_context();
1290 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1291 pa_return_val_if_fail(i->thread_info.resampler, -PA_ERR_BADSTATE);
1293 if (i->sample_spec.rate == rate)
1296 i->sample_spec.rate = rate;
1298 pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1300 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1304 /* Called from main context */
1305 void pa_sink_input_set_name(pa_sink_input *i, const char *name) {
1307 pa_sink_input_assert_ref(i);
1308 pa_assert_ctl_context();
1310 if (!name && !pa_proplist_contains(i->proplist, PA_PROP_MEDIA_NAME))
1313 old = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME);
1315 if (old && name && pa_streq(old, name))
1319 pa_proplist_sets(i->proplist, PA_PROP_MEDIA_NAME, name);
1321 pa_proplist_unset(i->proplist, PA_PROP_MEDIA_NAME);
1323 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
1324 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
1325 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1329 /* Called from main context */
1330 pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i) {
1331 pa_sink_input_assert_ref(i);
1332 pa_assert_ctl_context();
1334 return i->actual_resample_method;
1337 /* Called from main context */
1338 pa_bool_t pa_sink_input_may_move(pa_sink_input *i) {
1339 pa_sink_input_assert_ref(i);
1340 pa_assert_ctl_context();
1341 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1343 if (i->flags & PA_SINK_INPUT_DONT_MOVE)
1346 if (i->sync_next || i->sync_prev) {
1347 pa_log_warn("Moving synchronized streams not supported.");
1354 /* Called from main context */
1355 pa_bool_t pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
1356 pa_sink_input_assert_ref(i);
1357 pa_assert_ctl_context();
1358 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1359 pa_sink_assert_ref(dest);
1361 if (dest == i->sink)
1364 if (!pa_sink_input_may_move(i))
1367 if (pa_idxset_size(dest->inputs) >= PA_MAX_INPUTS_PER_SINK) {
1368 pa_log_warn("Failed to move sink input: too many inputs per sink.");
1372 if (check_passthrough_connection(pa_sink_input_is_passthrough(i), dest) < 0)
1376 if (!i->may_move_to(i, dest))
1382 /* Called from main context */
1383 int pa_sink_input_start_move(pa_sink_input *i) {
1384 pa_source_output *o, *p = NULL;
1387 pa_sink_input_assert_ref(i);
1388 pa_assert_ctl_context();
1389 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1392 if (!pa_sink_input_may_move(i))
1393 return -PA_ERR_NOTSUPPORTED;
1395 if ((r = pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], i)) < 0)
1398 /* Kill directly connected outputs */
1399 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
1401 pa_source_output_kill(o);
1404 pa_assert(pa_idxset_isempty(i->direct_outputs));
1406 pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
1408 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1409 pa_assert_se(i->sink->n_corked-- >= 1);
1411 if (pa_sink_input_is_passthrough(i))
1412 pa_sink_leave_passthrough(i->sink);
1414 if (pa_sink_flat_volume_enabled(i->sink))
1415 /* We might need to update the sink's volume if we are in flat
1417 pa_sink_set_volume(i->sink, NULL, FALSE, FALSE);
1419 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_START_MOVE, i, 0, NULL) == 0);
1421 pa_sink_update_status(i->sink);
1422 pa_cvolume_remap(&i->volume_factor_sink, &i->sink->channel_map, &i->channel_map);
1425 pa_sink_input_unref(i);
1430 /* Called from main context. If i has an origin sink that uses volume sharing,
1431 * then also the origin sink and all streams connected to it need to update
1432 * their volume - this function does all that by using recursion. */
1433 static void update_volume_due_to_moving(pa_sink_input *i, pa_sink *dest) {
1434 pa_cvolume old_volume;
1438 pa_assert(i->sink); /* The destination sink should already be set. */
1440 if (i->origin_sink && (i->origin_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)) {
1441 pa_sink *root_sink = i->sink;
1442 pa_sink_input *origin_sink_input;
1445 while (root_sink->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER)
1446 root_sink = root_sink->input_to_master->sink;
1448 if (pa_sink_flat_volume_enabled(i->sink)) {
1449 /* Ok, so the origin sink uses volume sharing, and flat volume is
1450 * enabled. The volume will have to be updated as follows:
1452 * i->volume := i->sink->real_volume
1453 * (handled later by pa_sink_set_volume)
1454 * i->reference_ratio := i->volume / i->sink->reference_volume
1455 * (handled later by pa_sink_set_volume)
1456 * i->real_ratio stays unchanged
1457 * (streams whose origin sink uses volume sharing should
1458 * always have real_ratio of 0 dB)
1459 * i->soft_volume stays unchanged
1460 * (streams whose origin sink uses volume sharing should
1461 * always have volume_factor as soft_volume, so no change
1462 * should be needed) */
1464 pa_assert(pa_cvolume_is_norm(&i->real_ratio));
1465 pa_assert(pa_cvolume_equal(&i->soft_volume, &i->volume_factor));
1467 /* Notifications will be sent by pa_sink_set_volume(). */
1470 /* Ok, so the origin sink uses volume sharing, and flat volume is
1471 * disabled. The volume will have to be updated as follows:
1474 * i->reference_ratio := 0 dB
1475 * i->real_ratio stays unchanged
1476 * (streams whose origin sink uses volume sharing should
1477 * always have real_ratio of 0 dB)
1478 * i->soft_volume stays unchanged
1479 * (streams whose origin sink uses volume sharing should
1480 * always have volume_factor as soft_volume, so no change
1481 * should be needed) */
1483 old_volume = i->volume;
1484 pa_cvolume_reset(&i->volume, i->volume.channels);
1485 pa_cvolume_reset(&i->reference_ratio, i->reference_ratio.channels);
1486 pa_assert(pa_cvolume_is_norm(&i->real_ratio));
1487 pa_assert(pa_cvolume_equal(&i->soft_volume, &i->volume_factor));
1489 /* Notify others about the changed sink input volume. */
1490 if (!pa_cvolume_equal(&i->volume, &old_volume)) {
1491 if (i->volume_changed)
1492 i->volume_changed(i);
1494 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1498 /* Additionally, the origin sink volume needs updating:
1500 * i->origin_sink->reference_volume := root_sink->reference_volume
1501 * i->origin_sink->real_volume := root_sink->real_volume
1502 * i->origin_sink->soft_volume stays unchanged
1503 * (sinks that use volume sharing should always have
1504 * soft_volume of 0 dB) */
1506 old_volume = i->origin_sink->reference_volume;
1508 i->origin_sink->reference_volume = root_sink->reference_volume;
1509 pa_cvolume_remap(&i->origin_sink->reference_volume, &root_sink->channel_map, &i->origin_sink->channel_map);
1511 i->origin_sink->real_volume = root_sink->real_volume;
1512 pa_cvolume_remap(&i->origin_sink->real_volume, &root_sink->channel_map, &i->origin_sink->channel_map);
1514 pa_assert(pa_cvolume_is_norm(&i->origin_sink->soft_volume));
1516 /* Notify others about the changed sink volume. If you wonder whether
1517 * i->origin_sink->set_volume() should be called somewhere, that's not
1518 * the case, because sinks that use volume sharing shouldn't have any
1519 * internal volume that set_volume() would update. If you wonder
1520 * whether the thread_info variables should be synced, yes, they
1521 * should, and it's done by the PA_SINK_MESSAGE_FINISH_MOVE message
1523 if (!pa_cvolume_equal(&i->origin_sink->reference_volume, &old_volume))
1524 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, i->origin_sink->index);
1526 /* Recursively update origin sink inputs. */
1527 PA_IDXSET_FOREACH(origin_sink_input, i->origin_sink->inputs, idx)
1528 update_volume_due_to_moving(origin_sink_input, dest);
1531 old_volume = i->volume;
1533 if (pa_sink_flat_volume_enabled(i->sink)) {
1534 /* Ok, so this is a regular stream, and flat volume is enabled. The
1535 * volume will have to be updated as follows:
1537 * i->volume := i->reference_ratio * i->sink->reference_volume
1538 * i->reference_ratio stays unchanged
1539 * i->real_ratio := i->volume / i->sink->real_volume
1540 * (handled later by pa_sink_set_volume)
1541 * i->soft_volume := i->real_ratio * i->volume_factor
1542 * (handled later by pa_sink_set_volume) */
1544 i->volume = i->sink->reference_volume;
1545 pa_cvolume_remap(&i->volume, &i->sink->channel_map, &i->channel_map);
1546 pa_sw_cvolume_multiply(&i->volume, &i->volume, &i->reference_ratio);
1549 /* Ok, so this is a regular stream, and flat volume is disabled.
1550 * The volume will have to be updated as follows:
1552 * i->volume := i->reference_ratio
1553 * i->reference_ratio stays unchanged
1554 * i->real_ratio := i->reference_ratio
1555 * i->soft_volume := i->real_ratio * i->volume_factor */
1557 i->volume = i->reference_ratio;
1558 i->real_ratio = i->reference_ratio;
1559 pa_sw_cvolume_multiply(&i->soft_volume, &i->real_ratio, &i->volume_factor);
1562 /* Notify others about the changed sink input volume. */
1563 if (!pa_cvolume_equal(&i->volume, &old_volume)) {
1564 /* XXX: In case i->sink has flat volume enabled, then real_ratio
1565 * and soft_volume are not updated yet. Let's hope that the
1566 * callback implementation doesn't care about those variables... */
1567 if (i->volume_changed)
1568 i->volume_changed(i);
1570 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1574 /* If i->sink == dest, then recursion has finished, and we can finally call
1575 * pa_sink_set_volume(), which will do the rest of the updates. */
1576 if ((i->sink == dest) && pa_sink_flat_volume_enabled(i->sink))
1577 pa_sink_set_volume(i->sink, NULL, FALSE, i->save_volume);
1580 /* Called from main context */
1581 int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1582 pa_resampler *new_resampler;
1584 pa_sink_input_assert_ref(i);
1585 pa_assert_ctl_context();
1586 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1587 pa_assert(!i->sink);
1588 pa_sink_assert_ref(dest);
1590 if (!pa_sink_input_may_move_to(i, dest))
1591 return -PA_ERR_NOTSUPPORTED;
1593 if (pa_sink_input_is_passthrough(i) && !pa_sink_check_format(dest, i->format)) {
1594 pa_proplist *p = pa_proplist_new();
1595 pa_log_debug("New sink doesn't support stream format, sending format-changed and killing");
1596 /* Tell the client what device we want to be on if it is going to
1598 pa_proplist_sets(p, "device", dest->name);
1599 pa_sink_input_send_event(i, PA_STREAM_EVENT_FORMAT_LOST, p);
1600 pa_proplist_free(p);
1601 return -PA_ERR_NOTSUPPORTED;
1604 if (i->thread_info.resampler &&
1605 pa_sample_spec_equal(pa_resampler_output_sample_spec(i->thread_info.resampler), &dest->sample_spec) &&
1606 pa_channel_map_equal(pa_resampler_output_channel_map(i->thread_info.resampler), &dest->channel_map))
1608 /* Try to reuse the old resampler if possible */
1609 new_resampler = i->thread_info.resampler;
1611 else if (!pa_sink_input_is_passthrough(i) &&
1612 ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ||
1613 !pa_sample_spec_equal(&i->sample_spec, &dest->sample_spec) ||
1614 !pa_channel_map_equal(&i->channel_map, &dest->channel_map))) {
1616 /* Okay, we need a new resampler for the new sink */
1618 if (!(new_resampler = pa_resampler_new(
1620 &i->sample_spec, &i->channel_map,
1621 &dest->sample_spec, &dest->channel_map,
1622 i->requested_resample_method,
1623 ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1624 ((i->flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1625 (i->core->disable_remixing || (i->flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
1626 pa_log_warn("Unsupported resampling operation.");
1627 return -PA_ERR_NOTSUPPORTED;
1630 new_resampler = NULL;
1636 i->save_sink = save;
1637 pa_idxset_put(dest->inputs, pa_sink_input_ref(i), NULL);
1639 pa_cvolume_remap(&i->volume_factor_sink, &i->channel_map, &i->sink->channel_map);
1641 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1642 i->sink->n_corked++;
1644 /* Replace resampler and render queue */
1645 if (new_resampler != i->thread_info.resampler) {
1647 if (i->thread_info.resampler)
1648 pa_resampler_free(i->thread_info.resampler);
1649 i->thread_info.resampler = new_resampler;
1651 pa_memblockq_free(i->thread_info.render_memblockq);
1653 i->thread_info.render_memblockq = pa_memblockq_new(
1655 MEMBLOCKQ_MAXLENGTH,
1657 pa_frame_size(&i->sink->sample_spec),
1662 i->actual_resample_method = new_resampler ? pa_resampler_get_method(new_resampler) : PA_RESAMPLER_INVALID;
1665 pa_sink_update_status(dest);
1667 update_volume_due_to_moving(i, dest);
1669 if (pa_sink_input_is_passthrough(i))
1670 pa_sink_enter_passthrough(i->sink);
1672 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_FINISH_MOVE, i, 0, NULL) == 0);
1674 pa_log_debug("Successfully moved sink input %i to %s.", i->index, dest->name);
1676 /* Notify everyone */
1677 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], i);
1678 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1683 /* Called from main context */
1684 void pa_sink_input_fail_move(pa_sink_input *i) {
1686 pa_sink_input_assert_ref(i);
1687 pa_assert_ctl_context();
1688 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1689 pa_assert(!i->sink);
1691 /* Check if someone wants this sink input? */
1692 if (pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL], i) == PA_HOOK_STOP)
1698 pa_sink_input_kill(i);
1701 /* Called from main context */
1702 int pa_sink_input_move_to(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1705 pa_sink_input_assert_ref(i);
1706 pa_assert_ctl_context();
1707 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1709 pa_sink_assert_ref(dest);
1711 if (dest == i->sink)
1714 if (!pa_sink_input_may_move_to(i, dest))
1715 return -PA_ERR_NOTSUPPORTED;
1717 pa_sink_input_ref(i);
1719 if ((r = pa_sink_input_start_move(i)) < 0) {
1720 pa_sink_input_unref(i);
1724 if ((r = pa_sink_input_finish_move(i, dest, save)) < 0) {
1725 pa_sink_input_fail_move(i);
1726 pa_sink_input_unref(i);
1730 pa_sink_input_unref(i);
1735 /* Called from IO thread context */
1736 void pa_sink_input_set_state_within_thread(pa_sink_input *i, pa_sink_input_state_t state) {
1737 pa_bool_t corking, uncorking;
1739 pa_sink_input_assert_ref(i);
1740 pa_sink_input_assert_io_context(i);
1742 if (state == i->thread_info.state)
1745 if ((state == PA_SINK_INPUT_DRAINED || state == PA_SINK_INPUT_RUNNING) &&
1746 !(i->thread_info.state == PA_SINK_INPUT_DRAINED || i->thread_info.state != PA_SINK_INPUT_RUNNING))
1747 pa_atomic_store(&i->thread_info.drained, 1);
1749 corking = state == PA_SINK_INPUT_CORKED && i->thread_info.state == PA_SINK_INPUT_RUNNING;
1750 uncorking = i->thread_info.state == PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_RUNNING;
1752 if (i->state_change)
1753 i->state_change(i, state);
1757 pa_log_debug("Requesting rewind due to corking");
1759 /* This will tell the implementing sink input driver to rewind
1760 * so that the unplayed already mixed data is not lost */
1761 pa_sink_input_request_rewind(i, 0, TRUE, TRUE, FALSE);
1763 /* Set the corked state *after* requesting rewind */
1764 i->thread_info.state = state;
1766 } else if (uncorking) {
1768 pa_log_debug("Requesting rewind due to uncorking");
1770 i->thread_info.underrun_for = (uint64_t) -1;
1771 i->thread_info.playing_for = 0;
1773 /* Set the uncorked state *before* requesting rewind */
1774 i->thread_info.state = state;
1776 /* OK, we're being uncorked. Make sure we're not rewound when
1777 * the hw buffer is remixed and request a remix. */
1778 pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
1780 /* We may not be corking or uncorking, but we still need to set the state. */
1781 i->thread_info.state = state;
1784 /* Called from thread context, except when it is not. */
1785 int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1786 pa_sink_input *i = PA_SINK_INPUT(o);
1787 pa_sink_input_assert_ref(i);
1791 case PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME:
1792 if (!pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume)) {
1793 i->thread_info.soft_volume = i->soft_volume;
1794 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1798 case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE:
1799 if (i->thread_info.muted != i->muted) {
1800 i->thread_info.muted = i->muted;
1801 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1805 case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1806 pa_usec_t *r = userdata;
1808 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(i->thread_info.render_memblockq), &i->sink->sample_spec);
1809 r[1] += pa_sink_get_latency_within_thread(i->sink);
1814 case PA_SINK_INPUT_MESSAGE_SET_RATE:
1816 i->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1817 pa_resampler_set_input_rate(i->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1821 case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1822 pa_sink_input *ssync;
1824 pa_sink_input_set_state_within_thread(i, PA_PTR_TO_UINT(userdata));
1826 for (ssync = i->thread_info.sync_prev; ssync; ssync = ssync->thread_info.sync_prev)
1827 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1829 for (ssync = i->thread_info.sync_next; ssync; ssync = ssync->thread_info.sync_next)
1830 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1835 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1836 pa_usec_t *usec = userdata;
1838 *usec = pa_sink_input_set_requested_latency_within_thread(i, *usec);
1842 case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1843 pa_usec_t *r = userdata;
1845 *r = i->thread_info.requested_sink_latency;
1850 return -PA_ERR_NOTIMPLEMENTED;
1853 /* Called from main thread */
1854 pa_sink_input_state_t pa_sink_input_get_state(pa_sink_input *i) {
1855 pa_sink_input_assert_ref(i);
1856 pa_assert_ctl_context();
1858 if (i->state == PA_SINK_INPUT_RUNNING || i->state == PA_SINK_INPUT_DRAINED)
1859 return pa_atomic_load(&i->thread_info.drained) ? PA_SINK_INPUT_DRAINED : PA_SINK_INPUT_RUNNING;
1864 /* Called from IO context */
1865 pa_bool_t pa_sink_input_safe_to_remove(pa_sink_input *i) {
1866 pa_sink_input_assert_ref(i);
1867 pa_sink_input_assert_io_context(i);
1869 if (PA_SINK_INPUT_IS_LINKED(i->thread_info.state))
1870 return pa_memblockq_is_empty(i->thread_info.render_memblockq);
1875 /* Called from IO context */
1876 void pa_sink_input_request_rewind(
1878 size_t nbytes /* in our sample spec */,
1881 pa_bool_t dont_rewind_render) {
1885 /* If 'rewrite' is TRUE the sink is rewound as far as requested
1886 * and possible and the exact value of this is passed back the
1887 * implementor via process_rewind(). If 'flush' is also TRUE all
1888 * already rendered data is also dropped.
1890 * If 'rewrite' is FALSE the sink is rewound as far as requested
1891 * and possible and the already rendered data is dropped so that
1892 * in the next iteration we read new data from the
1893 * implementor. This implies 'flush' is TRUE. If
1894 * dont_rewind_render is TRUE then the render memblockq is not
1897 /* nbytes = 0 means maximum rewind request */
1899 pa_sink_input_assert_ref(i);
1900 pa_sink_input_assert_io_context(i);
1901 pa_assert(rewrite || flush);
1902 pa_assert(!dont_rewind_render || !rewrite);
1904 /* We don't take rewind requests while we are corked */
1905 if (i->thread_info.state == PA_SINK_INPUT_CORKED)
1908 nbytes = PA_MAX(i->thread_info.rewrite_nbytes, nbytes);
1910 /* pa_log_debug("request rewrite %zu", nbytes); */
1912 /* Calculate how much we can rewind locally without having to
1915 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
1919 /* Check if rewinding for the maximum is requested, and if so, fix up */
1922 /* Calculate maximum number of bytes that could be rewound in theory */
1923 nbytes = i->sink->thread_info.max_rewind + lbq;
1925 /* Transform from sink domain */
1926 if (i->thread_info.resampler)
1927 nbytes = pa_resampler_request(i->thread_info.resampler, nbytes);
1930 /* Remember how much we actually want to rewrite */
1931 if (i->thread_info.rewrite_nbytes != (size_t) -1) {
1933 /* Make sure to not overwrite over underruns */
1934 if (nbytes > i->thread_info.playing_for)
1935 nbytes = (size_t) i->thread_info.playing_for;
1937 i->thread_info.rewrite_nbytes = nbytes;
1939 i->thread_info.rewrite_nbytes = (size_t) -1;
1942 i->thread_info.rewrite_flush =
1943 i->thread_info.rewrite_flush ||
1944 (flush && i->thread_info.rewrite_nbytes != 0);
1946 i->thread_info.dont_rewind_render =
1947 i->thread_info.dont_rewind_render ||
1950 if (nbytes != (size_t) -1) {
1952 /* Transform to sink domain */
1953 if (i->thread_info.resampler)
1954 nbytes = pa_resampler_result(i->thread_info.resampler, nbytes);
1957 pa_sink_request_rewind(i->sink, nbytes - lbq);
1959 /* This call will make sure process_rewind() is called later */
1960 pa_sink_request_rewind(i->sink, 0);
1964 /* Called from main context */
1965 pa_memchunk* pa_sink_input_get_silence(pa_sink_input *i, pa_memchunk *ret) {
1966 pa_sink_input_assert_ref(i);
1967 pa_assert_ctl_context();
1970 /* FIXME: Shouldn't access resampler object from main context! */
1972 pa_silence_memchunk_get(
1973 &i->core->silence_cache,
1977 i->thread_info.resampler ? pa_resampler_max_block_size(i->thread_info.resampler) : 0);
1982 /* Called from main context */
1983 void pa_sink_input_send_event(pa_sink_input *i, const char *event, pa_proplist *data) {
1984 pa_proplist *pl = NULL;
1985 pa_sink_input_send_event_hook_data hook_data;
1987 pa_sink_input_assert_ref(i);
1988 pa_assert_ctl_context();
1995 data = pl = pa_proplist_new();
1997 hook_data.sink_input = i;
1998 hook_data.data = data;
1999 hook_data.event = event;
2001 if (pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SEND_EVENT], &hook_data) < 0)
2004 i->send_event(i, event, data);
2008 pa_proplist_free(pl);