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);
50 static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v);
52 pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data) {
56 data->resample_method = PA_RESAMPLER_INVALID;
57 data->proplist = pa_proplist_new();
62 void pa_sink_input_new_data_set_sample_spec(pa_sink_input_new_data *data, const pa_sample_spec *spec) {
65 if ((data->sample_spec_is_set = !!spec))
66 data->sample_spec = *spec;
69 void pa_sink_input_new_data_set_channel_map(pa_sink_input_new_data *data, const pa_channel_map *map) {
72 if ((data->channel_map_is_set = !!map))
73 data->channel_map = *map;
76 void pa_sink_input_new_data_set_volume(pa_sink_input_new_data *data, const pa_cvolume *volume) {
79 if ((data->volume_is_set = !!volume))
80 data->volume = *volume;
83 void pa_sink_input_new_data_apply_volume_factor(pa_sink_input_new_data *data, const pa_cvolume *volume_factor) {
85 pa_assert(volume_factor);
87 if (data->volume_factor_is_set)
88 pa_sw_cvolume_multiply(&data->volume_factor, &data->volume_factor, volume_factor);
90 data->volume_factor_is_set = TRUE;
91 data->volume_factor = *volume_factor;
95 void pa_sink_input_new_data_set_muted(pa_sink_input_new_data *data, pa_bool_t mute) {
98 data->muted_is_set = TRUE;
102 void pa_sink_input_new_data_done(pa_sink_input_new_data *data) {
105 pa_proplist_free(data->proplist);
108 /* Called from main context */
109 static void reset_callbacks(pa_sink_input *i) {
113 i->process_rewind = NULL;
114 i->update_max_rewind = NULL;
115 i->update_max_request = NULL;
116 i->update_sink_requested_latency = NULL;
117 i->update_sink_latency_range = NULL;
118 i->update_sink_fixed_latency = NULL;
122 i->suspend_within_thread = NULL;
125 i->get_latency = NULL;
126 i->state_change = NULL;
127 i->may_move_to = NULL;
128 i->send_event = NULL;
131 /* Called from main context */
132 int pa_sink_input_new(
135 pa_sink_input_new_data *data,
136 pa_sink_input_flags_t flags) {
139 pa_resampler *resampler = NULL;
140 char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
141 pa_channel_map original_cm;
147 pa_assert_ctl_context();
150 pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
152 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_NEW], data)) < 0)
155 pa_return_val_if_fail(!data->driver || pa_utf8_valid(data->driver), -PA_ERR_INVALID);
158 data->sink = pa_namereg_get(core, NULL, PA_NAMEREG_SINK);
159 data->save_sink = FALSE;
162 pa_return_val_if_fail(data->sink, -PA_ERR_NOENTITY);
163 pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data->sink)), -PA_ERR_BADSTATE);
164 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);
166 if (!data->sample_spec_is_set)
167 data->sample_spec = data->sink->sample_spec;
169 pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
171 if (!data->channel_map_is_set) {
172 if (pa_channel_map_compatible(&data->sink->channel_map, &data->sample_spec))
173 data->channel_map = data->sink->channel_map;
175 pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
178 pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
179 pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
181 if (!data->volume_is_set) {
182 pa_cvolume_reset(&data->volume, data->sample_spec.channels);
183 data->volume_is_absolute = FALSE;
184 data->save_volume = FALSE;
187 pa_return_val_if_fail(pa_cvolume_valid(&data->volume), -PA_ERR_INVALID);
188 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
190 if (!data->volume_factor_is_set)
191 pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
193 pa_return_val_if_fail(pa_cvolume_valid(&data->volume_factor), -PA_ERR_INVALID);
194 pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
196 if (!data->muted_is_set)
199 if (flags & PA_SINK_INPUT_FIX_FORMAT)
200 data->sample_spec.format = data->sink->sample_spec.format;
202 if (flags & PA_SINK_INPUT_FIX_RATE)
203 data->sample_spec.rate = data->sink->sample_spec.rate;
205 original_cm = data->channel_map;
207 if (flags & PA_SINK_INPUT_FIX_CHANNELS) {
208 data->sample_spec.channels = data->sink->sample_spec.channels;
209 data->channel_map = data->sink->channel_map;
212 pa_assert(pa_sample_spec_valid(&data->sample_spec));
213 pa_assert(pa_channel_map_valid(&data->channel_map));
215 /* Due to the fixing of the sample spec the volume might not match anymore */
216 pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
218 if (data->resample_method == PA_RESAMPLER_INVALID)
219 data->resample_method = core->resample_method;
221 pa_return_val_if_fail(data->resample_method < PA_RESAMPLER_MAX, -PA_ERR_INVALID);
223 if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], data)) < 0)
226 if ((flags & PA_SINK_INPUT_NO_CREATE_ON_SUSPEND) &&
227 pa_sink_get_state(data->sink) == PA_SINK_SUSPENDED) {
228 pa_log_warn("Failed to create sink input: sink is suspended.");
229 return -PA_ERR_BADSTATE;
232 if (pa_idxset_size(data->sink->inputs) >= PA_MAX_INPUTS_PER_SINK) {
233 pa_log_warn("Failed to create sink input: too many inputs per sink.");
234 return -PA_ERR_TOOLARGE;
237 if ((flags & PA_SINK_INPUT_VARIABLE_RATE) ||
238 !pa_sample_spec_equal(&data->sample_spec, &data->sink->sample_spec) ||
239 !pa_channel_map_equal(&data->channel_map, &data->sink->channel_map)) {
241 if (!(resampler = pa_resampler_new(
243 &data->sample_spec, &data->channel_map,
244 &data->sink->sample_spec, &data->sink->channel_map,
245 data->resample_method,
246 ((flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
247 ((flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
248 (core->disable_remixing || (flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
249 (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
250 pa_log_warn("Unsupported resampling operation.");
251 return -PA_ERR_NOTSUPPORTED;
255 i = pa_msgobject_new(pa_sink_input);
256 i->parent.parent.free = sink_input_free;
257 i->parent.process_msg = pa_sink_input_process_msg;
260 i->state = PA_SINK_INPUT_INIT;
262 i->proplist = pa_proplist_copy(data->proplist);
263 i->driver = pa_xstrdup(pa_path_get_filename(data->driver));
264 i->module = data->module;
265 i->sink = data->sink;
266 i->client = data->client;
268 i->requested_resample_method = data->resample_method;
269 i->actual_resample_method = resampler ? pa_resampler_get_method(resampler) : PA_RESAMPLER_INVALID;
270 i->sample_spec = data->sample_spec;
271 i->channel_map = data->channel_map;
273 if ((i->sink->flags & PA_SINK_FLAT_VOLUME) && !data->volume_is_absolute) {
276 /* When the 'absolute' bool is not set then we'll treat the volume
277 * as relative to the sink volume even in flat volume mode */
278 remapped = data->sink->reference_volume;
279 pa_cvolume_remap(&remapped, &data->sink->channel_map, &data->channel_map);
280 pa_sw_cvolume_multiply(&i->volume, &data->volume, &remapped);
282 i->volume = data->volume;
284 i->volume_factor = data->volume_factor;
285 i->real_ratio = i->reference_ratio = data->volume;
286 pa_cvolume_reset(&i->soft_volume, i->sample_spec.channels);
287 pa_cvolume_reset(&i->real_ratio, i->sample_spec.channels);
288 i->save_volume = data->save_volume;
289 i->save_sink = data->save_sink;
290 i->save_muted = data->save_muted;
292 i->muted = data->muted;
294 if (data->sync_base) {
295 i->sync_next = data->sync_base->sync_next;
296 i->sync_prev = data->sync_base;
298 if (data->sync_base->sync_next)
299 data->sync_base->sync_next->sync_prev = i;
300 data->sync_base->sync_next = i;
302 i->sync_next = i->sync_prev = NULL;
304 i->direct_outputs = pa_idxset_new(NULL, NULL);
309 i->thread_info.state = i->state;
310 i->thread_info.attached = FALSE;
311 pa_atomic_store(&i->thread_info.drained, 1);
312 i->thread_info.sample_spec = i->sample_spec;
313 i->thread_info.resampler = resampler;
314 i->thread_info.soft_volume = i->soft_volume;
315 i->thread_info.muted = i->muted;
316 i->thread_info.requested_sink_latency = (pa_usec_t) -1;
317 i->thread_info.rewrite_nbytes = 0;
318 i->thread_info.rewrite_flush = FALSE;
319 i->thread_info.dont_rewind_render = FALSE;
320 i->thread_info.underrun_for = (uint64_t) -1;
321 i->thread_info.playing_for = 0;
322 i->thread_info.direct_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
324 i->thread_info.render_memblockq = pa_memblockq_new(
328 pa_frame_size(&i->sink->sample_spec),
334 pa_assert_se(pa_idxset_put(core->sink_inputs, i, &i->index) == 0);
335 pa_assert_se(pa_idxset_put(i->sink->inputs, pa_sink_input_ref(i), NULL) == 0);
338 pa_assert_se(pa_idxset_put(i->client->sink_inputs, i, NULL) >= 0);
340 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
342 pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)),
344 pa_sample_spec_snprint(st, sizeof(st), &i->sample_spec),
345 pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map));
347 /* Don't forget to call pa_sink_input_put! */
353 /* Called from main context */
354 static void update_n_corked(pa_sink_input *i, pa_sink_input_state_t state) {
356 pa_assert_ctl_context();
361 if (i->state == PA_SINK_INPUT_CORKED && state != PA_SINK_INPUT_CORKED)
362 pa_assert_se(i->sink->n_corked -- >= 1);
363 else if (i->state != PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_CORKED)
367 /* Called from main context */
368 static void sink_input_set_state(pa_sink_input *i, pa_sink_input_state_t state) {
369 pa_sink_input *ssync;
371 pa_assert_ctl_context();
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 pa_assert_ctl_context();
414 /* See pa_sink_unlink() for a couple of comments how this function
417 pa_sink_input_ref(i);
419 linked = PA_SINK_INPUT_IS_LINKED(i->state);
422 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], i);
425 i->sync_prev->sync_next = i->sync_next;
427 i->sync_next->sync_prev = i->sync_prev;
429 i->sync_prev = i->sync_next = NULL;
431 pa_idxset_remove_by_data(i->core->sink_inputs, i, NULL);
434 if (pa_idxset_remove_by_data(i->sink->inputs, i, NULL))
435 pa_sink_input_unref(i);
438 pa_idxset_remove_by_data(i->client->sink_inputs, i, NULL);
440 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
442 pa_source_output_kill(o);
446 update_n_corked(i, PA_SINK_INPUT_UNLINKED);
447 i->state = PA_SINK_INPUT_UNLINKED;
449 if (linked && i->sink) {
450 /* We might need to update the sink's volume if we are in flat volume mode. */
451 if (i->sink->flags & PA_SINK_FLAT_VOLUME)
452 pa_sink_set_volume(i->sink, NULL, FALSE, FALSE);
454 if (i->sink->asyncmsgq)
455 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_REMOVE_INPUT, i, 0, NULL) == 0);
461 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
462 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], i);
466 pa_sink_update_status(i->sink);
470 pa_core_maybe_vacuum(i->core);
472 pa_sink_input_unref(i);
475 /* Called from main context */
476 static void sink_input_free(pa_object *o) {
477 pa_sink_input* i = PA_SINK_INPUT(o);
480 pa_assert_ctl_context();
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;
513 pa_sink_input_assert_ref(i);
514 pa_assert_ctl_context();
516 pa_assert(i->state == PA_SINK_INPUT_INIT);
518 /* The following fields must be initialized properly */
520 pa_assert(i->process_rewind);
523 state = i->flags & PA_SINK_INPUT_START_CORKED ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING;
525 update_n_corked(i, state);
528 /* We might need to update the sink's volume if we are in flat volume mode. */
529 if (i->sink->flags & PA_SINK_FLAT_VOLUME)
530 pa_sink_set_volume(i->sink, NULL, FALSE, i->save_volume);
532 set_real_ratio(i, &i->volume);
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_ctl_context();
549 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
554 /* Called from main context */
555 pa_usec_t pa_sink_input_get_latency(pa_sink_input *i, pa_usec_t *sink_latency) {
556 pa_usec_t r[2] = { 0, 0 };
558 pa_sink_input_assert_ref(i);
559 pa_assert_ctl_context();
560 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
562 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
565 r[0] += i->get_latency(i);
568 *sink_latency = r[1];
573 /* Called from thread context */
574 void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, pa_memchunk *chunk, pa_cvolume *volume) {
575 pa_bool_t do_volume_adj_here;
576 pa_bool_t volume_is_norm;
577 size_t block_size_max_sink, block_size_max_sink_input;
580 pa_sink_input_assert_ref(i);
581 pa_sink_input_assert_io_context(i);
582 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
583 pa_assert(pa_frame_aligned(slength, &i->sink->sample_spec));
587 /* pa_log_debug("peek"); */
589 pa_assert(i->thread_info.state == PA_SINK_INPUT_RUNNING ||
590 i->thread_info.state == PA_SINK_INPUT_CORKED ||
591 i->thread_info.state == PA_SINK_INPUT_DRAINED);
593 block_size_max_sink_input = i->thread_info.resampler ?
594 pa_resampler_max_block_size(i->thread_info.resampler) :
595 pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sample_spec);
597 block_size_max_sink = pa_frame_align(pa_mempool_block_size_max(i->core->mempool), &i->sink->sample_spec);
599 /* Default buffer size */
601 slength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sink->sample_spec);
603 if (slength > block_size_max_sink)
604 slength = block_size_max_sink;
606 if (i->thread_info.resampler) {
607 ilength = pa_resampler_request(i->thread_info.resampler, slength);
610 ilength = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sample_spec);
614 if (ilength > block_size_max_sink_input)
615 ilength = block_size_max_sink_input;
617 /* If the channel maps of the sink and this stream differ, we need
618 * to adjust the volume *before* we resample. Otherwise we can do
619 * it after and leave it for the sink code */
621 do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map);
622 volume_is_norm = pa_cvolume_is_norm(&i->thread_info.soft_volume) && !i->thread_info.muted;
624 while (!pa_memblockq_is_readable(i->thread_info.render_memblockq)) {
627 /* There's nothing in our render queue. We need to fill it up
628 * with data from the implementor. */
630 if (i->thread_info.state == PA_SINK_INPUT_CORKED ||
631 i->pop(i, ilength, &tchunk) < 0) {
633 /* OK, we're corked or the implementor didn't give us any
634 * data, so let's just hand out silence */
635 pa_atomic_store(&i->thread_info.drained, 1);
637 pa_memblockq_seek(i->thread_info.render_memblockq, (int64_t) slength, PA_SEEK_RELATIVE, TRUE);
638 i->thread_info.playing_for = 0;
639 if (i->thread_info.underrun_for != (uint64_t) -1)
640 i->thread_info.underrun_for += ilength;
644 pa_atomic_store(&i->thread_info.drained, 0);
646 pa_assert(tchunk.length > 0);
647 pa_assert(tchunk.memblock);
649 i->thread_info.underrun_for = 0;
650 i->thread_info.playing_for += tchunk.length;
652 while (tchunk.length > 0) {
656 pa_memblock_ref(wchunk.memblock);
658 if (wchunk.length > block_size_max_sink_input)
659 wchunk.length = block_size_max_sink_input;
661 /* It might be necessary to adjust the volume here */
662 if (do_volume_adj_here && !volume_is_norm) {
663 pa_memchunk_make_writable(&wchunk, 0);
665 if (i->thread_info.muted)
666 pa_silence_memchunk(&wchunk, &i->thread_info.sample_spec);
668 pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &i->thread_info.soft_volume);
671 if (!i->thread_info.resampler)
672 pa_memblockq_push_align(i->thread_info.render_memblockq, &wchunk);
675 pa_resampler_run(i->thread_info.resampler, &wchunk, &rchunk);
677 /* pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
679 if (rchunk.memblock) {
680 pa_memblockq_push_align(i->thread_info.render_memblockq, &rchunk);
681 pa_memblock_unref(rchunk.memblock);
685 pa_memblock_unref(wchunk.memblock);
687 tchunk.index += wchunk.length;
688 tchunk.length -= wchunk.length;
691 pa_memblock_unref(tchunk.memblock);
694 pa_assert_se(pa_memblockq_peek(i->thread_info.render_memblockq, chunk) >= 0);
696 pa_assert(chunk->length > 0);
697 pa_assert(chunk->memblock);
699 /* pa_log_debug("peeking %lu", (unsigned long) chunk->length); */
701 if (chunk->length > block_size_max_sink)
702 chunk->length = block_size_max_sink;
704 /* Let's see if we had to apply the volume adjustment ourselves,
705 * or if this can be done by the sink for us */
707 if (do_volume_adj_here)
708 /* We had different channel maps, so we already did the adjustment */
709 pa_cvolume_reset(volume, i->sink->sample_spec.channels);
710 else if (i->thread_info.muted)
711 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
712 pa_cvolume_mute(volume, i->sink->sample_spec.channels);
714 *volume = i->thread_info.soft_volume;
717 /* Called from thread context */
718 void pa_sink_input_drop(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
720 pa_sink_input_assert_ref(i);
721 pa_sink_input_assert_io_context(i);
722 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
723 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
724 pa_assert(nbytes > 0);
726 /* pa_log_debug("dropping %lu", (unsigned long) nbytes); */
728 pa_memblockq_drop(i->thread_info.render_memblockq, nbytes);
731 /* Called from thread context */
732 void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in sink sample spec */) {
734 pa_bool_t called = FALSE;
736 pa_sink_input_assert_ref(i);
737 pa_sink_input_assert_io_context(i);
738 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
739 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
741 /* pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes, (unsigned long) i->thread_info.rewrite_nbytes); */
743 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
745 if (nbytes > 0 && !i->thread_info.dont_rewind_render) {
746 pa_log_debug("Have to rewind %lu bytes on render memblockq.", (unsigned long) nbytes);
747 pa_memblockq_rewind(i->thread_info.render_memblockq, nbytes);
750 if (i->thread_info.rewrite_nbytes == (size_t) -1) {
752 /* We were asked to drop all buffered data, and rerequest new
753 * data from implementor the next time push() is called */
755 pa_memblockq_flush_write(i->thread_info.render_memblockq);
757 } else if (i->thread_info.rewrite_nbytes > 0) {
758 size_t max_rewrite, amount;
760 /* Calculate how much make sense to rewrite at most */
761 max_rewrite = nbytes + lbq;
763 /* Transform into local domain */
764 if (i->thread_info.resampler)
765 max_rewrite = pa_resampler_request(i->thread_info.resampler, max_rewrite);
767 /* Calculate how much of the rewinded data should actually be rewritten */
768 amount = PA_MIN(i->thread_info.rewrite_nbytes, max_rewrite);
771 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) amount);
773 /* Tell the implementor */
774 if (i->process_rewind)
775 i->process_rewind(i, amount);
778 /* Convert back to to sink domain */
779 if (i->thread_info.resampler)
780 amount = pa_resampler_result(i->thread_info.resampler, amount);
783 /* Ok, now update the write pointer */
784 pa_memblockq_seek(i->thread_info.render_memblockq, - ((int64_t) amount), PA_SEEK_RELATIVE, TRUE);
786 if (i->thread_info.rewrite_flush)
787 pa_memblockq_silence(i->thread_info.render_memblockq);
789 /* And reset the resampler */
790 if (i->thread_info.resampler)
791 pa_resampler_reset(i->thread_info.resampler);
796 if (i->process_rewind)
797 i->process_rewind(i, 0);
799 i->thread_info.rewrite_nbytes = 0;
800 i->thread_info.rewrite_flush = FALSE;
801 i->thread_info.dont_rewind_render = FALSE;
804 /* Called from thread context */
805 size_t pa_sink_input_get_max_rewind(pa_sink_input *i) {
806 pa_sink_input_assert_ref(i);
807 pa_sink_input_assert_io_context(i);
809 return i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, i->sink->thread_info.max_rewind) : i->sink->thread_info.max_rewind;
812 /* Called from thread context */
813 size_t pa_sink_input_get_max_request(pa_sink_input *i) {
814 pa_sink_input_assert_ref(i);
815 pa_sink_input_assert_io_context(i);
817 /* We're not verifying the status here, to allow this to be called
818 * in the state change handler between _INIT and _RUNNING */
820 return i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, i->sink->thread_info.max_request) : i->sink->thread_info.max_request;
823 /* Called from thread context */
824 void pa_sink_input_update_max_rewind(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */) {
825 pa_sink_input_assert_ref(i);
826 pa_sink_input_assert_io_context(i);
827 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
828 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
830 pa_memblockq_set_maxrewind(i->thread_info.render_memblockq, nbytes);
832 if (i->update_max_rewind)
833 i->update_max_rewind(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
836 /* Called from thread context */
837 void pa_sink_input_update_max_request(pa_sink_input *i, size_t nbytes /* in the sink's sample spec */) {
838 pa_sink_input_assert_ref(i);
839 pa_sink_input_assert_io_context(i);
840 pa_assert(PA_SINK_INPUT_IS_LINKED(i->thread_info.state));
841 pa_assert(pa_frame_aligned(nbytes, &i->sink->sample_spec));
843 if (i->update_max_request)
844 i->update_max_request(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
847 /* Called from thread context */
848 pa_usec_t pa_sink_input_set_requested_latency_within_thread(pa_sink_input *i, pa_usec_t usec) {
849 pa_sink_input_assert_ref(i);
850 pa_sink_input_assert_io_context(i);
852 if (!(i->sink->flags & PA_SINK_DYNAMIC_LATENCY))
853 usec = i->sink->thread_info.fixed_latency;
855 if (usec != (pa_usec_t) -1)
856 usec = PA_CLAMP(usec, i->sink->thread_info.min_latency, i->sink->thread_info.max_latency);
858 i->thread_info.requested_sink_latency = usec;
859 pa_sink_invalidate_requested_latency(i->sink, TRUE);
864 /* Called from main context */
865 pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
866 pa_sink_input_assert_ref(i);
867 pa_assert_ctl_context();
869 if (PA_SINK_INPUT_IS_LINKED(i->state) && i->sink) {
870 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
874 /* If this sink input is not realized yet or we are being moved,
875 * we have to touch the thread info data directly */
878 if (!(i->sink->flags & PA_SINK_DYNAMIC_LATENCY))
879 usec = pa_sink_get_fixed_latency(i->sink);
881 if (usec != (pa_usec_t) -1) {
882 pa_usec_t min_latency, max_latency;
883 pa_sink_get_latency_range(i->sink, &min_latency, &max_latency);
884 usec = PA_CLAMP(usec, min_latency, max_latency);
888 i->thread_info.requested_sink_latency = usec;
893 /* Called from main context */
894 pa_usec_t pa_sink_input_get_requested_latency(pa_sink_input *i) {
895 pa_sink_input_assert_ref(i);
896 pa_assert_ctl_context();
898 if (PA_SINK_INPUT_IS_LINKED(i->state) && i->sink) {
900 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
904 /* If this sink input is not realized yet or we are being moved,
905 * we have to touch the thread info data directly */
907 return i->thread_info.requested_sink_latency;
910 /* Called from main context */
911 static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v) {
912 pa_sink_input_assert_ref(i);
913 pa_assert_ctl_context();
914 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
915 pa_assert(!v || pa_cvolume_compatible(v, &i->sample_spec));
917 /* This basically calculates:
920 * i->soft_volume := i->real_ratio * i->volume_factor */
925 pa_cvolume_reset(&i->real_ratio, i->sample_spec.channels);
927 pa_sw_cvolume_multiply(&i->soft_volume, &i->real_ratio, &i->volume_factor);
928 /* We don't copy the data to the thread_info data. That's left for someone else to do */
931 /* Called from main context */
932 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
935 pa_sink_input_assert_ref(i);
936 pa_assert_ctl_context();
937 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
939 pa_assert(pa_cvolume_valid(volume));
940 pa_assert(pa_cvolume_compatible(volume, &i->sample_spec));
942 if ((i->sink->flags & PA_SINK_FLAT_VOLUME) && !absolute) {
943 v = i->sink->reference_volume;
944 pa_cvolume_remap(&v, &i->sink->channel_map, &i->channel_map);
945 volume = pa_sw_cvolume_multiply(&v, &v, volume);
948 if (pa_cvolume_equal(volume, &i->volume)) {
949 i->save_volume = i->save_volume || save;
954 i->save_volume = save;
956 if (i->sink->flags & PA_SINK_FLAT_VOLUME)
957 /* We are in flat volume mode, so let's update all sink input
958 * volumes and update the flat volume of the sink */
960 pa_sink_set_volume(i->sink, NULL, TRUE, save);
963 /* OK, we are in normal volume mode. The volume only affects
965 set_real_ratio(i, volume);
967 /* Copy the new soft_volume to the thread_info struct */
968 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
971 /* The virtual volume changed, let's tell people so */
972 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
975 /* Called from main context */
976 pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i, pa_cvolume *volume, pa_bool_t absolute) {
977 pa_sink_input_assert_ref(i);
978 pa_assert_ctl_context();
979 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
981 if (absolute || !(i->sink->flags & PA_SINK_FLAT_VOLUME))
984 *volume = i->reference_ratio;
989 /* Called from main context */
990 void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
991 pa_sink_input_assert_ref(i);
992 pa_assert_ctl_context();
993 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
995 if (!i->muted == !mute)
999 i->save_muted = save;
1001 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
1002 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1005 /* Called from main context */
1006 pa_bool_t pa_sink_input_get_mute(pa_sink_input *i) {
1007 pa_sink_input_assert_ref(i);
1008 pa_assert_ctl_context();
1009 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1014 /* Called from main thread */
1015 void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_proplist *p) {
1016 pa_sink_input_assert_ref(i);
1017 pa_assert_ctl_context();
1020 pa_proplist_update(i->proplist, mode, p);
1022 if (PA_SINK_IS_LINKED(i->state)) {
1023 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
1024 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1028 /* Called from main context */
1029 void pa_sink_input_cork(pa_sink_input *i, pa_bool_t b) {
1030 pa_sink_input_assert_ref(i);
1031 pa_assert_ctl_context();
1032 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1034 sink_input_set_state(i, b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING);
1037 /* Called from main context */
1038 int pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate) {
1039 pa_sink_input_assert_ref(i);
1040 pa_assert_ctl_context();
1041 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1042 pa_return_val_if_fail(i->thread_info.resampler, -PA_ERR_BADSTATE);
1044 if (i->sample_spec.rate == rate)
1047 i->sample_spec.rate = rate;
1049 pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_RATE, PA_UINT_TO_PTR(rate), 0, NULL, NULL);
1051 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1055 /* Called from main context */
1056 void pa_sink_input_set_name(pa_sink_input *i, const char *name) {
1058 pa_sink_input_assert_ref(i);
1059 pa_assert_ctl_context();
1061 if (!name && !pa_proplist_contains(i->proplist, PA_PROP_MEDIA_NAME))
1064 old = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME);
1066 if (old && name && pa_streq(old, name))
1070 pa_proplist_sets(i->proplist, PA_PROP_MEDIA_NAME, name);
1072 pa_proplist_unset(i->proplist, PA_PROP_MEDIA_NAME);
1074 if (PA_SINK_INPUT_IS_LINKED(i->state)) {
1075 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
1076 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1080 /* Called from main context */
1081 pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i) {
1082 pa_sink_input_assert_ref(i);
1083 pa_assert_ctl_context();
1085 return i->actual_resample_method;
1088 /* Called from main context */
1089 pa_bool_t pa_sink_input_may_move(pa_sink_input *i) {
1090 pa_sink_input_assert_ref(i);
1091 pa_assert_ctl_context();
1092 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1094 if (i->flags & PA_SINK_INPUT_DONT_MOVE)
1097 if (i->sync_next || i->sync_prev) {
1098 pa_log_warn("Moving synchronised streams not supported.");
1105 /* Called from main context */
1106 pa_bool_t pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
1107 pa_sink_input_assert_ref(i);
1108 pa_assert_ctl_context();
1109 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1110 pa_sink_assert_ref(dest);
1112 if (dest == i->sink)
1115 if (!pa_sink_input_may_move(i))
1118 if (pa_idxset_size(dest->inputs) >= PA_MAX_INPUTS_PER_SINK) {
1119 pa_log_warn("Failed to move sink input: too many inputs per sink.");
1124 if (!i->may_move_to(i, dest))
1130 /* Called from main context */
1131 int pa_sink_input_start_move(pa_sink_input *i) {
1132 pa_source_output *o, *p = NULL;
1136 pa_sink_input_assert_ref(i);
1137 pa_assert_ctl_context();
1138 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1141 if (!pa_sink_input_may_move(i))
1142 return -PA_ERR_NOTSUPPORTED;
1144 if ((r = pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], i)) < 0)
1149 /* Kill directly connected outputs */
1150 while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
1152 pa_source_output_kill(o);
1155 pa_assert(pa_idxset_isempty(i->direct_outputs));
1157 pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
1159 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1160 pa_assert_se(i->sink->n_corked-- >= 1);
1162 if (i->sink->flags & PA_SINK_FLAT_VOLUME)
1163 /* We might need to update the sink's volume if we are in flat
1165 pa_sink_set_volume(i->sink, NULL, FALSE, FALSE);
1167 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_START_MOVE, i, 0, NULL) == 0);
1169 pa_sink_update_status(i->sink);
1172 pa_sink_input_unref(i);
1177 /* Called from main context */
1178 int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1179 pa_resampler *new_resampler;
1181 pa_sink_input_assert_ref(i);
1182 pa_assert_ctl_context();
1183 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1184 pa_assert(!i->sink);
1185 pa_sink_assert_ref(dest);
1187 if (!pa_sink_input_may_move_to(i, dest))
1188 return -PA_ERR_NOTSUPPORTED;
1190 if (i->thread_info.resampler &&
1191 pa_sample_spec_equal(pa_resampler_output_sample_spec(i->thread_info.resampler), &dest->sample_spec) &&
1192 pa_channel_map_equal(pa_resampler_output_channel_map(i->thread_info.resampler), &dest->channel_map))
1194 /* Try to reuse the old resampler if possible */
1195 new_resampler = i->thread_info.resampler;
1197 else if ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ||
1198 !pa_sample_spec_equal(&i->sample_spec, &dest->sample_spec) ||
1199 !pa_channel_map_equal(&i->channel_map, &dest->channel_map)) {
1201 /* Okey, we need a new resampler for the new sink */
1203 if (!(new_resampler = pa_resampler_new(
1205 &i->sample_spec, &i->channel_map,
1206 &dest->sample_spec, &dest->channel_map,
1207 i->requested_resample_method,
1208 ((i->flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
1209 ((i->flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
1210 (i->core->disable_remixing || (i->flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0)))) {
1211 pa_log_warn("Unsupported resampling operation.");
1212 return -PA_ERR_NOTSUPPORTED;
1215 new_resampler = NULL;
1221 i->save_sink = save;
1222 pa_idxset_put(dest->inputs, pa_sink_input_ref(i), NULL);
1224 if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
1225 i->sink->n_corked++;
1227 /* Replace resampler and render queue */
1228 if (new_resampler != i->thread_info.resampler) {
1230 if (i->thread_info.resampler)
1231 pa_resampler_free(i->thread_info.resampler);
1232 i->thread_info.resampler = new_resampler;
1234 pa_memblockq_free(i->thread_info.render_memblockq);
1236 i->thread_info.render_memblockq = pa_memblockq_new(
1238 MEMBLOCKQ_MAXLENGTH,
1240 pa_frame_size(&i->sink->sample_spec),
1246 pa_sink_update_status(dest);
1248 if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
1249 pa_cvolume remapped;
1251 /* Make relative volumes absolute */
1252 remapped = dest->reference_volume;
1253 pa_cvolume_remap(&remapped, &dest->channel_map, &i->channel_map);
1254 pa_sw_cvolume_multiply(&i->volume, &i->reference_ratio, &remapped);
1256 /* We might need to update the sink's volume if we are in flat volume mode. */
1257 pa_sink_set_volume(i->sink, NULL, FALSE, i->save_volume);
1260 pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_FINISH_MOVE, i, 0, NULL) == 0);
1262 pa_log_debug("Successfully moved sink input %i to %s.", i->index, dest->name);
1264 /* Notify everyone */
1265 pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], i);
1266 pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
1271 /* Called from main context */
1272 void pa_sink_input_fail_move(pa_sink_input *i) {
1274 pa_sink_input_assert_ref(i);
1275 pa_assert_ctl_context();
1276 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1277 pa_assert(!i->sink);
1279 /* Check if someone wants this sink input? */
1280 if (pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL], i) == PA_HOOK_STOP)
1286 pa_sink_input_kill(i);
1289 /* Called from main context */
1290 int pa_sink_input_move_to(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
1293 pa_sink_input_assert_ref(i);
1294 pa_assert_ctl_context();
1295 pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
1297 pa_sink_assert_ref(dest);
1299 if (dest == i->sink)
1302 if (!pa_sink_input_may_move_to(i, dest))
1303 return -PA_ERR_NOTSUPPORTED;
1305 pa_sink_input_ref(i);
1307 if ((r = pa_sink_input_start_move(i)) < 0) {
1308 pa_sink_input_unref(i);
1312 if ((r = pa_sink_input_finish_move(i, dest, save)) < 0) {
1313 pa_sink_input_fail_move(i);
1314 pa_sink_input_unref(i);
1318 pa_sink_input_unref(i);
1323 /* Called from IO thread context */
1324 void pa_sink_input_set_state_within_thread(pa_sink_input *i, pa_sink_input_state_t state) {
1325 pa_bool_t corking, uncorking;
1327 pa_sink_input_assert_ref(i);
1328 pa_sink_input_assert_io_context(i);
1330 if (state == i->thread_info.state)
1333 if ((state == PA_SINK_INPUT_DRAINED || state == PA_SINK_INPUT_RUNNING) &&
1334 !(i->thread_info.state == PA_SINK_INPUT_DRAINED || i->thread_info.state != PA_SINK_INPUT_RUNNING))
1335 pa_atomic_store(&i->thread_info.drained, 1);
1337 corking = state == PA_SINK_INPUT_CORKED && i->thread_info.state == PA_SINK_INPUT_RUNNING;
1338 uncorking = i->thread_info.state == PA_SINK_INPUT_CORKED && state == PA_SINK_INPUT_RUNNING;
1340 if (i->state_change)
1341 i->state_change(i, state);
1343 i->thread_info.state = state;
1347 pa_log_debug("Requesting rewind due to corking");
1349 /* This will tell the implementing sink input driver to rewind
1350 * so that the unplayed already mixed data is not lost */
1351 pa_sink_input_request_rewind(i, 0, TRUE, TRUE, FALSE);
1353 } else if (uncorking) {
1355 i->thread_info.underrun_for = (uint64_t) -1;
1356 i->thread_info.playing_for = 0;
1358 pa_log_debug("Requesting rewind due to uncorking");
1360 /* OK, we're being uncorked. Make sure we're not rewound when
1361 * the hw buffer is remixed and request a remix. */
1362 pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
1366 /* Called from thread context, except when it is not. */
1367 int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
1368 pa_sink_input *i = PA_SINK_INPUT(o);
1369 pa_sink_input_assert_ref(i);
1373 case PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME:
1374 if (!pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume)) {
1375 i->thread_info.soft_volume = i->soft_volume;
1376 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1380 case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE:
1381 if (i->thread_info.muted != i->muted) {
1382 i->thread_info.muted = i->muted;
1383 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
1387 case PA_SINK_INPUT_MESSAGE_GET_LATENCY: {
1388 pa_usec_t *r = userdata;
1390 r[0] += pa_bytes_to_usec(pa_memblockq_get_length(i->thread_info.render_memblockq), &i->sink->sample_spec);
1391 r[1] += pa_sink_get_latency_within_thread(i->sink);
1396 case PA_SINK_INPUT_MESSAGE_SET_RATE:
1398 i->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
1399 pa_resampler_set_input_rate(i->thread_info.resampler, PA_PTR_TO_UINT(userdata));
1403 case PA_SINK_INPUT_MESSAGE_SET_STATE: {
1404 pa_sink_input *ssync;
1406 pa_sink_input_set_state_within_thread(i, PA_PTR_TO_UINT(userdata));
1408 for (ssync = i->thread_info.sync_prev; ssync; ssync = ssync->thread_info.sync_prev)
1409 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1411 for (ssync = i->thread_info.sync_next; ssync; ssync = ssync->thread_info.sync_next)
1412 pa_sink_input_set_state_within_thread(ssync, PA_PTR_TO_UINT(userdata));
1417 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY: {
1418 pa_usec_t *usec = userdata;
1420 *usec = pa_sink_input_set_requested_latency_within_thread(i, *usec);
1424 case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY: {
1425 pa_usec_t *r = userdata;
1427 *r = i->thread_info.requested_sink_latency;
1432 return -PA_ERR_NOTIMPLEMENTED;
1435 /* Called from main thread */
1436 pa_sink_input_state_t pa_sink_input_get_state(pa_sink_input *i) {
1437 pa_sink_input_assert_ref(i);
1438 pa_assert_ctl_context();
1440 if (i->state == PA_SINK_INPUT_RUNNING || i->state == PA_SINK_INPUT_DRAINED)
1441 return pa_atomic_load(&i->thread_info.drained) ? PA_SINK_INPUT_DRAINED : PA_SINK_INPUT_RUNNING;
1446 /* Called from IO context */
1447 pa_bool_t pa_sink_input_safe_to_remove(pa_sink_input *i) {
1448 pa_sink_input_assert_ref(i);
1449 pa_sink_input_assert_io_context(i);
1451 if (PA_SINK_INPUT_IS_LINKED(i->thread_info.state))
1452 return pa_memblockq_is_empty(i->thread_info.render_memblockq);
1457 /* Called from IO context */
1458 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) {
1461 /* If 'rewrite' is TRUE the sink is rewound as far as requested
1462 * and possible and the exact value of this is passed back the
1463 * implementor via process_rewind(). If 'flush' is also TRUE all
1464 * already rendered data is also dropped.
1466 * If 'rewrite' is FALSE the sink is rewound as far as requested
1467 * and possible and the already rendered data is dropped so that
1468 * in the next iteration we read new data from the
1469 * implementor. This implies 'flush' is TRUE. If
1470 * dont_rewind_render is TRUE then the render memblockq is not
1473 pa_sink_input_assert_ref(i);
1474 pa_sink_input_assert_io_context(i);
1476 nbytes = PA_MAX(i->thread_info.rewrite_nbytes, nbytes);
1478 /* pa_log_debug("request rewrite %lu", (unsigned long) nbytes); */
1480 /* We don't take rewind requests while we are corked */
1481 if (i->thread_info.state == PA_SINK_INPUT_CORKED)
1484 pa_assert(rewrite || flush);
1485 pa_assert(!dont_rewind_render || !rewrite);
1487 /* Calculate how much we can rewind locally without having to
1490 lbq = pa_memblockq_get_length(i->thread_info.render_memblockq);
1494 /* Check if rewinding for the maximum is requested, and if so, fix up */
1497 /* Calculate maximum number of bytes that could be rewound in theory */
1498 nbytes = i->sink->thread_info.max_rewind + lbq;
1500 /* Transform from sink domain */
1501 if (i->thread_info.resampler)
1502 nbytes = pa_resampler_request(i->thread_info.resampler, nbytes);
1505 if (i->thread_info.rewrite_nbytes != (size_t) -1) {
1507 /* Make sure to not overwrite over underruns */
1508 if (nbytes > i->thread_info.playing_for)
1509 nbytes = (size_t) i->thread_info.playing_for;
1511 i->thread_info.rewrite_nbytes = nbytes;
1513 i->thread_info.rewrite_nbytes = (size_t) -1;
1516 i->thread_info.rewrite_flush =
1517 i->thread_info.rewrite_flush ||
1518 (flush && i->thread_info.rewrite_nbytes != 0);
1520 i->thread_info.dont_rewind_render =
1521 i->thread_info.dont_rewind_render ||
1524 if (nbytes != (size_t) -1) {
1526 /* Transform to sink domain */
1527 if (i->thread_info.resampler)
1528 nbytes = pa_resampler_result(i->thread_info.resampler, nbytes);
1531 pa_sink_request_rewind(i->sink, nbytes - lbq);
1533 /* This call will make sure process_rewind() is called later */
1534 pa_sink_request_rewind(i->sink, 0);
1538 /* Called from main context */
1539 pa_memchunk* pa_sink_input_get_silence(pa_sink_input *i, pa_memchunk *ret) {
1540 pa_sink_input_assert_ref(i);
1541 pa_assert_ctl_context();
1544 /* FIXME: Shouldn't access resampler object from main context! */
1546 pa_silence_memchunk_get(
1547 &i->core->silence_cache,
1551 i->thread_info.resampler ? pa_resampler_max_block_size(i->thread_info.resampler) : 0);
1556 /* Called from main context */
1557 void pa_sink_input_send_event(pa_sink_input *i, const char *event, pa_proplist *data) {
1558 pa_proplist *pl = NULL;
1559 pa_sink_input_send_event_hook_data hook_data;
1561 pa_sink_input_assert_ref(i);
1562 pa_assert_ctl_context();
1569 data = pl = pa_proplist_new();
1571 hook_data.sink_input = i;
1572 hook_data.data = data;
1573 hook_data.event = event;
1575 if (pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_SEND_EVENT], &hook_data) < 0)
1578 i->send_event(i, event, data);
1582 pa_proplist_free(pl);