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
31 #include <pulse/utf8.h>
32 #include <pulse/xmalloc.h>
33 #include <pulse/util.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 static PA_DEFINE_CHECK_TYPE(pa_sink_input, pa_msgobject);
49 static void sink_input_free(pa_object *o);
51 pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data) {
54 memset(data, 0, sizeof(*data));
55 data->resample_method = PA_RESAMPLER_INVALID;
56 data->proplist = pa_proplist_new();
61 void pa_sink_input_new_data_set_sample_spec(pa_sink_input_new_data *data, const pa_sample_spec *spec) {
64 if ((data->sample_spec_is_set = !!spec))
65 data->sample_spec = *spec;
68 void pa_sink_input_new_data_set_channel_map(pa_sink_input_new_data *data, const pa_channel_map *map) {
71 if ((data->channel_map_is_set = !!map))
72 data->channel_map = *map;
75 void pa_sink_input_new_data_set_volume(pa_sink_input_new_data *data, const pa_cvolume *volume) {
78 if ((data->volume_is_set = !!volume))
79 data->volume = *volume;
82 void pa_sink_input_new_data_apply_volume_factor(pa_sink_input_new_data *data, const pa_cvolume *volume_factor) {
84 pa_assert(volume_factor);
86 if (data->volume_factor_is_set)
87 pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
89 data->volume_factor_is_set = TRUE;
90 data->volume_factor = *volume_factor;
94 void pa_sink_input_new_data_set_muted(pa_sink_input_new_data *data, pa_bool_t mute) {
97 data->muted_is_set = TRUE;
101 void pa_sink_input_new_data_done(pa_sink_input_new_data *data) {
104 pa_proplist_free(data->proplist);
107 /* Called from main context */
108 static void reset_callbacks(pa_sink_input *i) {
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;
122 i->get_latency = NULL;
123 i->state_change = NULL;
124 i->may_move_to = NULL;
125 i->send_event = NULL;
128 /* Called from main context */
129 int pa_sink_input_new(
132 pa_sink_input_new_data *data,
133 pa_sink_input_flags_t flags) {
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;
146 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
148 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_NEW], data)) < 0)
151 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
154 data->sink = pa_namereg_get(core, NULL, PA_NAMEREG_SINK);
155 data->save_sink = FALSE;
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);
162 if (!data->sample_spec_is_set)
163 data->sample_spec = data->sink->sample_spec;
165 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
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;
171 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
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);
177 if (!data->volume_is_set) {
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;
184 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
185 data->volume_is_absolute = FALSE;
188 data->save_volume = FALSE;
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);
194 if (!data->volume_factor_is_set)
195 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
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);
200 if (!data->muted_is_set)
203 if (flags & PA_SINK_INPUT_FIX_FORMAT)
204 data->sample_spec.format = data->sink->sample_spec.format;
206 if (flags & PA_SINK_INPUT_FIX_RATE)
207 data->sample_spec.rate = data->sink->sample_spec.rate;
209 original_cm = data->channel_map;
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;
216 pa_assert(pa_sample_spec_valid(&data->sample_spec));
217 pa_assert(pa_channel_map_valid(&data->channel_map));
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);
222 if (data->resample_method == PA_RESAMPLER_INVALID)
223 data->resample_method = core->resample_method;
225 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
227 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], data)) < 0)
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;
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;
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)) {
245 if (!(resampler = pa_resampler_new(
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;
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;
264 i->state = PA_SINK_INPUT_INIT;
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;
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;
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 */
281 pa_cvolume t = *pa_sink_get_volume(data->sink, FALSE);
282 pa_cvolume_remap(&t, &data->sink->channel_map, &data->channel_map);
284 pa_sw_cvolume_multiply(&i->virtual_volume, &data->volume, &t);
286 i->virtual_volume = data->volume;
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;
294 i->muted = data->muted;
296 if (data->sync_base) {
297 i->sync_next = data->sync_base->sync_next;
298 i->sync_prev = data->sync_base;
300 if (data->sync_base->sync_next)
301 data->sync_base->sync_next->sync_prev = i;
302 data->sync_base->sync_next = i;
304 i->sync_next = i->sync_prev = NULL;
306 i->direct_outputs = pa_idxset_new(NULL, NULL);
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);
326 i->thread_info.render_memblockq = pa_memblockq_new(
330 pa_frame_size(&i->sink->sample_spec),
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);
340 pa_assert_se(pa_idxset_put(i->client->sink_inputs, i, NULL) >= 0);
342 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
344 pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)),
346 pa_sample_spec_snprint(st, sizeof(st), &i->sample_spec),
347 pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map));
349 /* Don't forget to call pa_sink_input_put! */
355 /* Called from main context */
356 static void update_n_corked(pa_sink_input *i, pa_sink_input_state_t state) {
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)
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;
373 if (state == PA_SINK_INPUT_DRAINED)
374 state = PA_SINK_INPUT_RUNNING;
376 if (i->state == state)
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);
381 update_n_corked(i, state);
384 for (ssync = i->sync_prev; ssync; ssync = ssync->sync_prev) {
385 update_n_corked(ssync, state);
386 ssync->state = state;
388 for (ssync = i->sync_next; ssync; ssync = ssync->sync_next) {
389 update_n_corked(ssync, state);
390 ssync->state = state;
393 if (state != PA_SINK_INPUT_UNLINKED) {
394 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], i);
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);
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);
403 pa_sink_update_status(i->sink);
406 /* Called from main context */
407 void pa_sink_input_unlink(pa_sink_input *i) {
409 pa_source_output *o, *p = NULL;
412 /* See pa_sink_unlink() for a couple of comments how this function
415 pa_sink_input_ref(i);
417 linked = PA_SINK_INPUT_IS_LINKED(i->state);
420 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], i);
423 i->sync_prev->sync_next = i->sync_next;
425 i->sync_next->sync_prev = i->sync_prev;
427 i->sync_prev = i->sync_next = NULL;
429 pa_idxset_remove_by_data(i->core->sink_inputs, i, NULL);
432 if (pa_idxset_remove_by_data(i->sink->inputs, i, NULL))
433 pa_sink_input_unref(i);
436 pa_idxset_remove_by_data(i->client->sink_inputs, i, NULL);
438 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
440 pa_source_output_kill(o);
444 update_n_corked(i, PA_SINK_INPUT_UNLINKED);
445 i->state = PA_SINK_INPUT_UNLINKED;
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);
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);
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);
467 pa_sink_update_status(i->sink);
471 pa_core_maybe_vacuum(i->core);
473 pa_sink_input_unref(i);
476 /* Called from main context */
477 static void sink_input_free(pa_object *o) {
478 pa_sink_input* i = PA_SINK_INPUT(o);
481 pa_assert(pa_sink_input_refcnt(i) == 0);
483 if (PA_SINK_INPUT_IS_LINKED(i->state))
484 pa_sink_input_unlink(i);
486 pa_log_info("Freeing input %u \"%s\"", i->index, pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)));
488 pa_assert(!i->thread_info.attached);
490 if (i->thread_info.render_memblockq)
491 pa_memblockq_free(i->thread_info.render_memblockq);
493 if (i->thread_info.resampler)
494 pa_resampler_free(i->thread_info.resampler);
497 pa_proplist_free(i->proplist);
499 if (i->direct_outputs)
500 pa_idxset_free(i->direct_outputs, NULL, NULL);
502 if (i->thread_info.direct_outputs)
503 pa_hashmap_free(i->thread_info.direct_outputs, NULL, NULL);
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);
514 pa_assert(i->state == PA_SINK_INPUT_INIT);
516 /* The following fields must be initialized properly */
518 pa_assert(i->process_rewind);
521 state = i->flags & PA_SINK_INPUT_START_CORKED ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING;
523 update_n_corked(i, state);
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);
532 pa_sw_cvolume_multiply(&i->soft_volume, &i->virtual_volume, &i->volume_factor);
534 i->thread_info.soft_volume = i->soft_volume;
535 i->thread_info.muted = i->muted;
537 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_ADD_INPUT, i, 0, NULL) == 0);
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);
542 pa_sink_update_status(i->sink);
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));
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 };
557 pa_sink_input_assert_ref(i);
558 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
560 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
563 r[0] += i->get_latency(i);
566 *sink_latency = r[1];
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;
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));
584 /* pa_log_debug("peek"); */
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);
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);
594 block_size_max_sink = pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sink->sample_spec);
596 /* Default buffer size */
598 slength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sink->sample_spec);
600 if (slength > block_size_max_sink)
601 slength = block_size_max_sink;
603 if (i->thread_info.resampler) {
604 ilength = pa_resampler_request(i->thread_info.resampler, slength);
607 ilength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sample_spec);
611 if (ilength > block_size_max_sink_input)
612 ilength = block_size_max_sink_input;
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 */
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;
621 while (!pa_memblockq_is_readable(i->thread_info.render_memblockq)) {
624 /* There's nothing in our render queue. We need to fill it up
625 * with data from the implementor. */
627 if (i->thread_info.state == PA_SINK_INPUT_CORKED ||
628 i->pop(i, ilength, &tchunk) < 0) {
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);
634 pa_memblockq_seek(i->thread_info.render_memblockq, (int64_t) slength, PA_SEEK_RELATIVE, TRUE);
635 i->thread_info.playing_for = 0;
636 if (i->thread_info.underrun_for != (uint64_t) -1)
637 i->thread_info.underrun_for += ilength;
641 pa_atomic_store(&i->thread_info.drained, 0);
643 pa_assert(tchunk.length > 0);
644 pa_assert(tchunk.memblock);
646 i->thread_info.underrun_for = 0;
647 i->thread_info.playing_for += tchunk.length;
649 while (tchunk.length > 0) {
653 pa_memblock_ref(wchunk.memblock);
655 if (wchunk.length > block_size_max_sink_input)
656 wchunk.length = block_size_max_sink_input;
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);
662 if (i->thread_info.muted)
663 pa_silence_memchunk(&wchunk, &i->thread_info.sample_spec);
665 pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &i->thread_info.soft_volume);
668 if (!i->thread_info.resampler)
669 pa_memblockq_push_align(i->thread_info.render_memblockq, &wchunk);
672 pa_resampler_run(i->thread_info.resampler, &wchunk, &rchunk);
674 /* pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
676 if (rchunk.memblock) {
677 pa_memblockq_push_align(i->thread_info.render_memblockq, &rchunk);
678 pa_memblock_unref(rchunk.memblock);
682 pa_memblock_unref(wchunk.memblock);
684 tchunk.index += wchunk.length;
685 tchunk.length -= wchunk.length;
688 pa_memblock_unref(tchunk.memblock);
691 pa_assert_se(pa_memblockq_peek(i->thread_info.render_memblockq, chunk) >= 0);
693 pa_assert(chunk->length > 0);
694 pa_assert(chunk->memblock);
696 /* pa_log_debug("peeking %lu", (unsigned long) chunk->length); */
698 if (chunk->length > block_size_max_sink)
699 chunk->length = block_size_max_sink;
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 */
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);
711 *volume = i->thread_info.soft_volume;
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);
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);
722 /* pa_log_debug("dropping %lu", (unsigned long) nbytes); */
724 pa_memblockq_drop(i->thread_info.render_memblockq, nbytes);
727 /* Called from thread context */
728 void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
730 pa_bool_t called = FALSE;
731 pa_sink_input_assert_ref(i);
733 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
734 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
736 /* pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes, (unsigned long) i->thread_info.rewrite_nbytes); */
738 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
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);
745 if (i->thread_info.rewrite_nbytes == (size_t) -1) {
747 /* We were asked to drop all buffered data, and rerequest new
748 * data from implementor the next time push() is called */
750 pa_memblockq_flush_write(i->thread_info.render_memblockq);
752 } else if (i->thread_info.rewrite_nbytes > 0) {
753 size_t max_rewrite, amount;
755 /* Calculate how much make sense to rewrite at most */
756 max_rewrite = nbytes + lbq;
758 /* Transform into local domain */
759 if (i->thread_info.resampler)
760 max_rewrite = pa_resampler_request(i->thread_info.resampler, max_rewrite);
762 /* Calculate how much of the rewinded data should actually be rewritten */
763 amount = PA_MIN(i->thread_info.rewrite_nbytes, max_rewrite);
766 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) amount);
768 /* Tell the implementor */
769 if (i->process_rewind)
770 i->process_rewind(i, amount);
773 /* Convert back to to sink domain */
774 if (i->thread_info.resampler)
775 amount = pa_resampler_result(i->thread_info.resampler, amount);
778 /* Ok, now update the write pointer */
779 pa_memblockq_seek(i->thread_info.render_memblockq, - ((int64_t) amount), PA_SEEK_RELATIVE, TRUE);
781 if (i->thread_info.rewrite_flush)
782 pa_memblockq_silence(i->thread_info.render_memblockq);
784 /* And reset the resampler */
785 if (i->thread_info.resampler)
786 pa_resampler_reset(i->thread_info.resampler);
791 if (i->process_rewind)
792 i->process_rewind(i, 0);
794 i->thread_info.rewrite_nbytes = 0;
795 i->thread_info.rewrite_flush = FALSE;
796 i->thread_info.dont_rewind_render = FALSE;
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));
805 pa_memblockq_set_maxrewind(i->thread_info.render_memblockq, nbytes);
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);
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));
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);
821 /* Called from thread context */
822 pa_usec_t pa_sink_input_set_requested_latency_within_thread(pa_sink_input *i, pa_usec_t usec) {
823 pa_sink_input_assert_ref(i);
825 if (usec != (pa_usec_t) -1)
826 usec = PA_CLAMP(usec, i->sink->thread_info.min_latency, i->sink->thread_info.max_latency);
828 i->thread_info.requested_sink_latency = usec;
829 pa_sink_invalidate_requested_latency(i->sink);
834 /* Called from main context */
835 pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
836 pa_usec_t min_latency, max_latency;
838 pa_sink_input_assert_ref(i);
840 if (PA_SINK_INPUT_IS_LINKED(i->state) && i->sink) {
841 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
845 /* If this sink input is not realized yet or we are being moved,
846 * we have to touch the thread info data directly */
849 pa_sink_get_latency_range(i->sink, &min_latency, &max_latency);
851 if (usec != (pa_usec_t) -1)
852 usec = PA_CLAMP(usec, min_latency, max_latency);
855 i->thread_info.requested_sink_latency = usec;
860 /* Called from main context */
861 pa_usec_t pa_sink_input_get_requested_latency(pa_sink_input *i) {
862 pa_sink_input_assert_ref(i);
864 if (PA_SINK_INPUT_IS_LINKED(i->state) && i->sink) {
866 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
870 /* If this sink input is not realized yet or we are being moved,
871 * we have to touch the thread info data directly */
873 return i->thread_info.requested_sink_latency;
876 /* Called from main context */
877 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume, pa_bool_t save) {
878 pa_sink_input_assert_ref(i);
879 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
881 pa_assert(pa_cvolume_valid(volume));
882 pa_assert(pa_cvolume_compatible(volume, &i->sample_spec));
884 if (pa_cvolume_equal(volume, &i->virtual_volume))
887 i->virtual_volume = *volume;
888 i->save_volume = save;
890 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
891 pa_cvolume new_volume;
893 /* We are in flat volume mode, so let's update all sink input
894 * volumes and update the flat volume of the sink */
896 pa_sink_update_flat_volume(i->sink, &new_volume);
897 pa_sink_set_volume(i->sink, &new_volume, FALSE, TRUE);
901 /* OK, we are in normal volume mode. The volume only affects
903 pa_sw_cvolume_multiply(&i->soft_volume, volume, &i->volume_factor);
905 /* Hooks have the ability to play games with i->soft_volume */
906 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME], i);
908 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
911 /* The virtual volume changed, let's tell people so */
912 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
915 /* Called from main context */
916 const pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i) {
917 pa_sink_input_assert_ref(i);
918 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
920 return &i->virtual_volume;
923 /* Called from main context */
924 pa_cvolume *pa_sink_input_get_relative_volume(pa_sink_input *i, pa_cvolume *v) {
925 pa_sink_input_assert_ref(i);
927 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
929 *v = i->virtual_volume;
931 /* This always returns a relative volume, even in flat volume mode */
933 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
936 sv = *pa_sink_get_volume(i->sink, FALSE);
938 pa_sw_cvolume_divide(v, v,
939 pa_cvolume_remap(&sv, &i->sink->channel_map, &i->channel_map));
945 /* Called from main context */
946 void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
948 pa_sink_input_assert_ref(i);
949 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
951 if (!i->muted == !mute)
955 i->save_muted = save;
957 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
958 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
961 /* Called from main context */
962 pa_bool_t pa_sink_input_get_mute(pa_sink_input *i) {
963 pa_sink_input_assert_ref(i);
964 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
969 /* Called from main thread */
970 void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_proplist *p) {
971 pa_sink_input_assert_ref(i);
974 pa_proplist_update(i->proplist, mode, p);
976 if (PA_SINK_IS_LINKED(i->state)) {
977 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
978 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
982 /* Called from main context */
983 void pa_sink_input_cork(pa_sink_input *i, pa_bool_t b) {
984 pa_sink_input_assert_ref(i);
985 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
987 sink_input_set_state(i, b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING);
990 /* Called from main context */
991 int pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate) {
992 pa_sink_input_assert_ref(i);
993 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
994 pa_return_val_if_fail(i->thread_info.resampler, -PA_ERR_BADSTATE);
996 if (i->sample_spec.rate == rate)
999 i->sample_spec.rate = rate;
1001 pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1003 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1007 /* Called from main context */
1008 void pa_sink_input_set_name(pa_sink_input *i, const char *name) {
1010 pa_sink_input_assert_ref(i);
1012 if (!name && !pa_proplist_contains(i->proplist, PA_PROP_MEDIA_NAME))
1015 old = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME);
1017 if (old && name && !strcmp(old, name))
1021 pa_proplist_sets(i->proplist, PA_PROP_MEDIA_NAME, name);
1023 pa_proplist_unset(i->proplist, PA_PROP_MEDIA_NAME);
1025 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
1026 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
1027 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1031 /* Called from main context */
1032 pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i) {
1033 pa_sink_input_assert_ref(i);
1035 return i->actual_resample_method;
1038 /* Called from main context */
1039 pa_bool_t pa_sink_input_may_move(pa_sink_input *i) {
1040 pa_sink_input_assert_ref(i);
1041 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1043 if (i->flags & PA_SINK_INPUT_DONT_MOVE)
1046 if (i->sync_next || i->sync_prev) {
1047 pa_log_warn("Moving synchronised streams not supported.");
1054 /* Called from main context */
1055 pa_bool_t pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
1056 pa_sink_input_assert_ref(i);
1057 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1058 pa_sink_assert_ref(dest);
1060 if (dest == i->sink)
1063 if (!pa_sink_input_may_move(i))
1066 if (pa_idxset_size(dest->inputs) >= PA_MAX_INPUTS_PER_SINK) {
1067 pa_log_warn("Failed to move sink input: too many inputs per sink.");
1072 if (!i->may_move_to(i, dest))
1078 /* Called from main context */
1079 int pa_sink_input_start_move(pa_sink_input *i) {
1080 pa_source_output *o, *p = NULL;
1084 pa_sink_input_assert_ref(i);
1085 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1088 if (!pa_sink_input_may_move(i))
1089 return -PA_ERR_NOTSUPPORTED;
1091 if ((r = pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], i)) < 0)
1096 /* Kill directly connected outputs */
1097 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
1099 pa_source_output_kill(o);
1102 pa_assert(pa_idxset_isempty(i->direct_outputs));
1104 pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
1106 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1107 pa_assert_se(i->sink->n_corked-- >= 1);
1109 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
1110 pa_cvolume new_volume;
1112 /* Make the absolute volume relative */
1113 i->virtual_volume = i->soft_volume;
1114 i->soft_volume = i->volume_factor;
1116 /* We might need to update the sink's volume if we are in flat
1118 pa_sink_update_flat_volume(i->sink, &new_volume);
1119 pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
1122 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_START_MOVE, i, 0, NULL) == 0);
1124 pa_sink_update_status(i->sink);
1130 /* Called from main context */
1131 int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1132 pa_resampler *new_resampler;
1134 pa_sink_input_assert_ref(i);
1135 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1136 pa_assert(!i->sink);
1137 pa_sink_assert_ref(dest);
1139 if (!pa_sink_input_may_move_to(i, dest))
1140 return -PA_ERR_NOTSUPPORTED;
1142 if (i->thread_info.resampler &&
1143 pa_sample_spec_equal(pa_resampler_output_sample_spec(i->thread_info.resampler), &dest->sample_spec) &&
1144 pa_channel_map_equal(pa_resampler_output_channel_map(i->thread_info.resampler), &dest->channel_map))
1146 /* Try to reuse the old resampler if possible */
1147 new_resampler = i->thread_info.resampler;
1149 else if ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ||
1150 !pa_sample_spec_equal(&i->sample_spec, &dest->sample_spec) ||
1151 !pa_channel_map_equal(&i->channel_map, &dest->channel_map)) {
1153 /* Okey, we need a new resampler for the new sink */
1155 if (!(new_resampler = pa_resampler_new(
1157 &i->sample_spec, &i->channel_map,
1158 &dest->sample_spec, &dest->channel_map,
1159 i->requested_resample_method,
1160 ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1161 ((i->flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1162 (i->core->disable_remixing || (i->flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
1163 pa_log_warn("Unsupported resampling operation.");
1164 return -PA_ERR_NOTSUPPORTED;
1167 new_resampler = NULL;
1173 i->save_sink = save;
1174 pa_idxset_put(dest->inputs, i, NULL);
1176 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1177 i->sink->n_corked++;
1179 /* Replace resampler and render queue */
1180 if (new_resampler != i->thread_info.resampler) {
1182 if (i->thread_info.resampler)
1183 pa_resampler_free(i->thread_info.resampler);
1184 i->thread_info.resampler = new_resampler;
1186 pa_memblockq_free(i->thread_info.render_memblockq);
1188 i->thread_info.render_memblockq = pa_memblockq_new(
1190 MEMBLOCKQ_MAXLENGTH,
1192 pa_frame_size(&i->sink->sample_spec),
1198 pa_sink_update_status(dest);
1200 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
1201 pa_cvolume new_volume;
1203 /* Make relative volume absolute again */
1204 pa_cvolume t = dest->virtual_volume;
1205 pa_cvolume_remap(&t, &dest->channel_map, &i->channel_map);
1206 pa_sw_cvolume_multiply(&i->virtual_volume, &i->virtual_volume, &t);
1208 /* We might need to update the sink's volume if we are in flat volume mode. */
1209 pa_sink_update_flat_volume(i->sink, &new_volume);
1210 pa_sink_set_volume(i->sink, &new_volume, FALSE, FALSE);
1213 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_FINISH_MOVE, i, 0, NULL) == 0);
1215 pa_log_debug("Successfully moved sink input %i to %s.", i->index, dest->name);
1217 /* Notify everyone */
1218 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], i);
1219 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1224 /* Called from main context */
1225 int pa_sink_input_move_to(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1228 pa_sink_input_assert_ref(i);
1229 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1231 pa_sink_assert_ref(dest);
1233 if (dest == i->sink)
1236 if (!pa_sink_input_may_move_to(i, dest))
1237 return -PA_ERR_NOTSUPPORTED;
1239 if ((r = pa_sink_input_start_move(i)) < 0)
1242 if ((r = pa_sink_input_finish_move(i, dest, save)) < 0)
1248 /* Called from IO thread context */
1249 void pa_sink_input_set_state_within_thread(pa_sink_input *i, pa_sink_input_state_t state) {
1250 pa_bool_t corking, uncorking;
1251 pa_sink_input_assert_ref(i);
1253 if (state == i->thread_info.state)
1256 if ((state == PA_SINK_INPUT_DRAINED || state == PA_SINK_INPUT_RUNNING) &&
1257 !(i->thread_info.state == PA_SINK_INPUT_DRAINED || i->thread_info.state != PA_SINK_INPUT_RUNNING))
1258 pa_atomic_store(&i->thread_info.drained, 1);
1260 corking = state == PA_SINK_INPUT_CORKED && i->thread_info.state == PA_SINK_INPUT_RUNNING;
1261 uncorking = i->thread_info.state == PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_RUNNING;
1263 if (i->state_change)
1264 i->state_change(i, state);
1266 i->thread_info.state = state;
1270 pa_log_debug("Requesting rewind due to corking");
1272 /* This will tell the implementing sink input driver to rewind
1273 * so that the unplayed already mixed data is not lost */
1274 pa_sink_input_request_rewind(i, 0, TRUE, TRUE, FALSE);
1276 } else if (uncorking) {
1278 i->thread_info.underrun_for = (uint64_t) -1;
1279 i->thread_info.playing_for = 0;
1281 pa_log_debug("Requesting rewind due to uncorking");
1283 /* OK, we're being uncorked. Make sure we're not rewound when
1284 * the hw buffer is remixed and request a remix. */
1285 pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
1289 /* Called from thread context, except when it is not. */
1290 int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1291 pa_sink_input *i = PA_SINK_INPUT(o);
1292 pa_sink_input_assert_ref(i);
1296 case PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME:
1297 if (!pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume)) {
1298 i->thread_info.soft_volume = i->soft_volume;
1299 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1303 case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE:
1304 if (i->thread_info.muted != i->muted) {
1305 i->thread_info.muted = i->muted;
1306 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1310 case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1311 pa_usec_t *r = userdata;
1312 pa_usec_t sink_usec = 0;
1314 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(i->thread_info.render_memblockq), &i->sink->sample_spec);
1316 if (i->sink->parent.process_msg(PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_GET_LATENCY, &sink_usec, 0, NULL) >= 0)
1322 case PA_SINK_INPUT_MESSAGE_SET_RATE:
1324 i->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1325 pa_resampler_set_input_rate(i->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1329 case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1330 pa_sink_input *ssync;
1332 pa_sink_input_set_state_within_thread(i, PA_PTR_TO_UINT(userdata));
1334 for (ssync = i->thread_info.sync_prev; ssync; ssync = ssync->thread_info.sync_prev)
1335 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1337 for (ssync = i->thread_info.sync_next; ssync; ssync = ssync->thread_info.sync_next)
1338 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1343 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1344 pa_usec_t *usec = userdata;
1346 *usec = pa_sink_input_set_requested_latency_within_thread(i, *usec);
1350 case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1351 pa_usec_t *r = userdata;
1353 *r = i->thread_info.requested_sink_latency;
1358 return -PA_ERR_NOTIMPLEMENTED;
1361 /* Called from main thread */
1362 pa_sink_input_state_t pa_sink_input_get_state(pa_sink_input *i) {
1363 pa_sink_input_assert_ref(i);
1365 if (i->state == PA_SINK_INPUT_RUNNING || i->state == PA_SINK_INPUT_DRAINED)
1366 return pa_atomic_load(&i->thread_info.drained) ? PA_SINK_INPUT_DRAINED : PA_SINK_INPUT_RUNNING;
1371 /* Called from IO context */
1372 pa_bool_t pa_sink_input_safe_to_remove(pa_sink_input *i) {
1373 pa_sink_input_assert_ref(i);
1375 if (PA_SINK_INPUT_IS_LINKED(i->thread_info.state))
1376 return pa_memblockq_is_empty(i->thread_info.render_memblockq);
1381 /* Called from IO context */
1382 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) {
1385 /* If 'rewrite' is TRUE the sink is rewound as far as requested
1386 * and possible and the exact value of this is passed back the
1387 * implementor via process_rewind(). If 'flush' is also TRUE all
1388 * already rendered data is also dropped.
1390 * If 'rewrite' is FALSE the sink is rewound as far as requested
1391 * and possible and the already rendered data is dropped so that
1392 * in the next iteration we read new data from the
1393 * implementor. This implies 'flush' is TRUE. If
1394 * dont_rewind_render is TRUE then the render memblockq is not
1397 pa_sink_input_assert_ref(i);
1399 nbytes = PA_MAX(i->thread_info.rewrite_nbytes, nbytes);
1401 /* pa_log_debug("request rewrite %lu", (unsigned long) nbytes); */
1403 /* We don't take rewind requests while we are corked */
1404 if (i->thread_info.state == PA_SINK_INPUT_CORKED)
1407 pa_assert(rewrite || flush);
1408 pa_assert(!dont_rewind_render || !rewrite);
1410 /* Calculate how much we can rewind locally without having to
1413 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
1417 /* Check if rewinding for the maximum is requested, and if so, fix up */
1420 /* Calculate maximum number of bytes that could be rewound in theory */
1421 nbytes = i->sink->thread_info.max_rewind + lbq;
1423 /* Transform from sink domain */
1424 if (i->thread_info.resampler)
1425 nbytes = pa_resampler_request(i->thread_info.resampler, nbytes);
1428 if (i->thread_info.rewrite_nbytes != (size_t) -1) {
1430 /* Make sure to not overwrite over underruns */
1431 if (nbytes > i->thread_info.playing_for)
1432 nbytes = (size_t) i->thread_info.playing_for;
1434 i->thread_info.rewrite_nbytes = nbytes;
1436 i->thread_info.rewrite_nbytes = (size_t) -1;
1439 i->thread_info.rewrite_flush =
1440 i->thread_info.rewrite_flush ||
1441 (flush && i->thread_info.rewrite_nbytes != 0);
1443 i->thread_info.dont_rewind_render =
1444 i->thread_info.dont_rewind_render ||
1447 if (nbytes != (size_t) -1) {
1449 /* Transform to sink domain */
1450 if (i->thread_info.resampler)
1451 nbytes = pa_resampler_result(i->thread_info.resampler, nbytes);
1454 pa_sink_request_rewind(i->sink, nbytes - lbq);
1456 /* This call will make sure process_rewind() is called later */
1457 pa_sink_request_rewind(i->sink, 0);
1461 /* Called from main context */
1462 pa_memchunk* pa_sink_input_get_silence(pa_sink_input *i, pa_memchunk *ret) {
1463 pa_sink_input_assert_ref(i);
1466 pa_silence_memchunk_get(
1467 &i->core->silence_cache,
1471 i->thread_info.resampler ? pa_resampler_max_block_size(i->thread_info.resampler) : 0);
1476 /* Called from main context */
1477 void pa_sink_input_send_event(pa_sink_input *i, const char *event, pa_proplist *data) {
1478 pa_proplist *pl = NULL;
1479 pa_sink_input_send_event_hook_data hook_data;
1481 pa_sink_input_assert_ref(i);
1488 data = pl = pa_proplist_new();
1490 hook_data.sink_input = i;
1491 hook_data.data = data;
1492 hook_data.event = event;
1494 if (pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SEND_EVENT], &hook_data) < 0)
1497 i->send_event(i, event, data);
1501 pa_proplist_free(pl);