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 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
;
127 /* Called from main context */
128 int pa_sink_input_new(
131 pa_sink_input_new_data
*data
,
132 pa_sink_input_flags_t flags
) {
135 pa_resampler
*resampler
= NULL
;
136 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
137 pa_channel_map original_cm
;
145 pa_proplist_update(data
->proplist
, PA_UPDATE_MERGE
, data
->client
->proplist
);
147 if ((r
= pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_NEW
], data
)) < 0)
150 pa_return_val_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
), -PA_ERR_INVALID
);
153 data
->sink
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SINK
);
154 data
->save_sink
= FALSE
;
157 pa_return_val_if_fail(data
->sink
, -PA_ERR_NOENTITY
);
158 pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data
->sink
)), -PA_ERR_BADSTATE
);
159 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
);
160 pa_return_val_if_fail(!(flags
& PA_SINK_INPUT_FAIL_ON_SUSPEND
) || pa_sink_get_state(data
->sink
) != PA_SINK_SUSPENDED
, -PA_ERR_BADSTATE
);
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 (pa_idxset_size(data
->sink
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
231 pa_log_warn("Failed to create sink input: too many inputs per sink.");
232 return -PA_ERR_TOOLARGE
;
235 if ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
236 !pa_sample_spec_equal(&data
->sample_spec
, &data
->sink
->sample_spec
) ||
237 !pa_channel_map_equal(&data
->channel_map
, &data
->sink
->channel_map
)) {
239 if (!(resampler
= pa_resampler_new(
241 &data
->sample_spec
, &data
->channel_map
,
242 &data
->sink
->sample_spec
, &data
->sink
->channel_map
,
243 data
->resample_method
,
244 ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
245 ((flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
246 (core
->disable_remixing
|| (flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0) |
247 (core
->disable_lfe_remixing
? PA_RESAMPLER_NO_LFE
: 0)))) {
248 pa_log_warn("Unsupported resampling operation.");
249 return -PA_ERR_NOTSUPPORTED
;
253 i
= pa_msgobject_new(pa_sink_input
);
254 i
->parent
.parent
.free
= sink_input_free
;
255 i
->parent
.process_msg
= pa_sink_input_process_msg
;
258 i
->state
= PA_SINK_INPUT_INIT
;
260 i
->proplist
= pa_proplist_copy(data
->proplist
);
261 i
->driver
= pa_xstrdup(pa_path_get_filename(data
->driver
));
262 i
->module
= data
->module
;
263 i
->sink
= data
->sink
;
264 i
->client
= data
->client
;
266 i
->requested_resample_method
= data
->resample_method
;
267 i
->actual_resample_method
= resampler
? pa_resampler_get_method(resampler
) : PA_RESAMPLER_INVALID
;
268 i
->sample_spec
= data
->sample_spec
;
269 i
->channel_map
= data
->channel_map
;
271 if ((i
->sink
->flags
& PA_SINK_FLAT_VOLUME
) && !data
->volume_is_absolute
) {
272 /* When the 'absolute' bool is not set then we'll treat the volume
273 * as relative to the sink volume even in flat volume mode */
275 pa_cvolume t
= *pa_sink_get_volume(data
->sink
, FALSE
);
276 pa_cvolume_remap(&t
, &data
->sink
->channel_map
, &data
->channel_map
);
278 pa_sw_cvolume_multiply(&i
->virtual_volume
, &data
->volume
, &t
);
280 i
->virtual_volume
= data
->volume
;
282 i
->volume_factor
= data
->volume_factor
;
283 pa_cvolume_init(&i
->soft_volume
);
284 i
->save_volume
= data
->save_volume
;
285 i
->save_sink
= data
->save_sink
;
286 i
->save_muted
= data
->save_muted
;
288 i
->muted
= data
->muted
;
290 if (data
->sync_base
) {
291 i
->sync_next
= data
->sync_base
->sync_next
;
292 i
->sync_prev
= data
->sync_base
;
294 if (data
->sync_base
->sync_next
)
295 data
->sync_base
->sync_next
->sync_prev
= i
;
296 data
->sync_base
->sync_next
= i
;
298 i
->sync_next
= i
->sync_prev
= NULL
;
300 i
->direct_outputs
= pa_idxset_new(NULL
, NULL
);
305 i
->thread_info
.state
= i
->state
;
306 i
->thread_info
.attached
= FALSE
;
307 pa_atomic_store(&i
->thread_info
.drained
, 1);
308 i
->thread_info
.sample_spec
= i
->sample_spec
;
309 i
->thread_info
.resampler
= resampler
;
310 i
->thread_info
.soft_volume
= i
->soft_volume
;
311 i
->thread_info
.muted
= i
->muted
;
312 i
->thread_info
.requested_sink_latency
= (pa_usec_t
) -1;
313 i
->thread_info
.rewrite_nbytes
= 0;
314 i
->thread_info
.rewrite_flush
= FALSE
;
315 i
->thread_info
.dont_rewind_render
= FALSE
;
316 i
->thread_info
.underrun_for
= (uint64_t) -1;
317 i
->thread_info
.playing_for
= 0;
318 i
->thread_info
.direct_outputs
= pa_hashmap_new(pa_idxset_trivial_hash_func
, pa_idxset_trivial_compare_func
);
320 i
->thread_info
.render_memblockq
= pa_memblockq_new(
324 pa_frame_size(&i
->sink
->sample_spec
),
330 pa_assert_se(pa_idxset_put(core
->sink_inputs
, pa_sink_input_ref(i
), &i
->index
) == 0);
331 pa_assert_se(pa_idxset_put(i
->sink
->inputs
, i
, NULL
) == 0);
334 pa_assert_se(pa_idxset_put(i
->client
->sink_inputs
, i
, NULL
) >= 0);
336 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
338 pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)),
340 pa_sample_spec_snprint(st
, sizeof(st
), &i
->sample_spec
),
341 pa_channel_map_snprint(cm
, sizeof(cm
), &i
->channel_map
));
343 /* Don't forget to call pa_sink_input_put! */
349 /* Called from main context */
350 static void update_n_corked(pa_sink_input
*i
, pa_sink_input_state_t state
) {
356 if (i
->state
== PA_SINK_INPUT_CORKED
&& state
!= PA_SINK_INPUT_CORKED
)
357 pa_assert_se(i
->sink
->n_corked
-- >= 1);
358 else if (i
->state
!= PA_SINK_INPUT_CORKED
&& state
== PA_SINK_INPUT_CORKED
)
362 /* Called from main context */
363 static void sink_input_set_state(pa_sink_input
*i
, pa_sink_input_state_t state
) {
364 pa_sink_input
*ssync
;
367 if (state
== PA_SINK_INPUT_DRAINED
)
368 state
= PA_SINK_INPUT_RUNNING
;
370 if (i
->state
== state
)
373 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);
375 update_n_corked(i
, state
);
378 for (ssync
= i
->sync_prev
; ssync
; ssync
= ssync
->sync_prev
) {
379 update_n_corked(ssync
, state
);
380 ssync
->state
= state
;
382 for (ssync
= i
->sync_next
; ssync
; ssync
= ssync
->sync_next
) {
383 update_n_corked(ssync
, state
);
384 ssync
->state
= state
;
387 if (state
!= PA_SINK_INPUT_UNLINKED
) {
388 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED
], i
);
390 for (ssync
= i
->sync_prev
; ssync
; ssync
= ssync
->sync_prev
)
391 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED
], ssync
);
393 for (ssync
= i
->sync_next
; ssync
; ssync
= ssync
->sync_next
)
394 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED
], ssync
);
397 pa_sink_update_status(i
->sink
);
400 /* Called from main context */
401 void pa_sink_input_unlink(pa_sink_input
*i
) {
403 pa_source_output
*o
, *p
= NULL
;
406 /* See pa_sink_unlink() for a couple of comments how this function
409 pa_sink_input_ref(i
);
411 linked
= PA_SINK_INPUT_IS_LINKED(i
->state
);
414 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK
], i
);
417 i
->sync_prev
->sync_next
= i
->sync_next
;
419 i
->sync_next
->sync_prev
= i
->sync_prev
;
421 i
->sync_prev
= i
->sync_next
= NULL
;
423 pa_idxset_remove_by_data(i
->core
->sink_inputs
, i
, NULL
);
426 if (pa_idxset_remove_by_data(i
->sink
->inputs
, i
, NULL
))
427 pa_sink_input_unref(i
);
430 pa_idxset_remove_by_data(i
->client
->sink_inputs
, i
, NULL
);
432 while ((o
= pa_idxset_first(i
->direct_outputs
, NULL
))) {
434 pa_source_output_kill(o
);
438 update_n_corked(i
, PA_SINK_INPUT_UNLINKED
);
439 i
->state
= PA_SINK_INPUT_UNLINKED
;
441 if (linked
&& i
->sink
) {
442 /* We might need to update the sink's volume if we are in flat volume mode. */
443 if (i
->sink
->flags
& PA_SINK_FLAT_VOLUME
) {
444 pa_cvolume new_volume
;
445 pa_sink_update_flat_volume(i
->sink
, &new_volume
);
446 pa_sink_set_volume(i
->sink
, &new_volume
, FALSE
, FALSE
);
449 if (i
->sink
->asyncmsgq
)
450 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_REMOVE_INPUT
, i
, 0, NULL
) == 0);
456 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, i
->index
);
457 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST
], i
);
461 pa_sink_update_status(i
->sink
);
465 pa_sink_input_unref(i
);
468 /* Called from main context */
469 static void sink_input_free(pa_object
*o
) {
470 pa_sink_input
* i
= PA_SINK_INPUT(o
);
473 pa_assert(pa_sink_input_refcnt(i
) == 0);
475 if (PA_SINK_INPUT_IS_LINKED(i
->state
))
476 pa_sink_input_unlink(i
);
478 pa_log_info("Freeing input %u \"%s\"", i
->index
, pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)));
480 pa_assert(!i
->thread_info
.attached
);
482 if (i
->thread_info
.render_memblockq
)
483 pa_memblockq_free(i
->thread_info
.render_memblockq
);
485 if (i
->thread_info
.resampler
)
486 pa_resampler_free(i
->thread_info
.resampler
);
489 pa_proplist_free(i
->proplist
);
491 if (i
->direct_outputs
)
492 pa_idxset_free(i
->direct_outputs
, NULL
, NULL
);
494 if (i
->thread_info
.direct_outputs
)
495 pa_hashmap_free(i
->thread_info
.direct_outputs
, NULL
, NULL
);
501 /* Called from main context */
502 void pa_sink_input_put(pa_sink_input
*i
) {
503 pa_sink_input_state_t state
;
504 pa_sink_input_assert_ref(i
);
506 pa_assert(i
->state
== PA_SINK_INPUT_INIT
);
508 /* The following fields must be initialized properly */
510 pa_assert(i
->process_rewind
);
513 state
= i
->flags
& PA_SINK_INPUT_START_CORKED
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
;
515 update_n_corked(i
, state
);
518 /* We might need to update the sink's volume if we are in flat volume mode. */
519 if (i
->sink
->flags
& PA_SINK_FLAT_VOLUME
) {
520 pa_cvolume new_volume
;
521 pa_sink_update_flat_volume(i
->sink
, &new_volume
);
522 pa_sink_set_volume(i
->sink
, &new_volume
, FALSE
, FALSE
);
524 pa_sw_cvolume_multiply(&i
->soft_volume
, &i
->virtual_volume
, &i
->volume_factor
);
526 i
->thread_info
.soft_volume
= i
->soft_volume
;
527 i
->thread_info
.muted
= i
->muted
;
529 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_ADD_INPUT
, i
, 0, NULL
) == 0);
531 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_NEW
, i
->index
);
532 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PUT
], i
);
534 pa_sink_update_status(i
->sink
);
537 /* Called from main context */
538 void pa_sink_input_kill(pa_sink_input
*i
) {
539 pa_sink_input_assert_ref(i
);
540 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
545 /* Called from main context */
546 pa_usec_t
pa_sink_input_get_latency(pa_sink_input
*i
, pa_usec_t
*sink_latency
) {
547 pa_usec_t r
[2] = { 0, 0 };
549 pa_sink_input_assert_ref(i
);
550 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
552 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_GET_LATENCY
, r
, 0, NULL
) == 0);
555 r
[0] += i
->get_latency(i
);
558 *sink_latency
= r
[1];
563 /* Called from thread context */
564 void pa_sink_input_peek(pa_sink_input
*i
, size_t slength
/* in sink frames */, pa_memchunk
*chunk
, pa_cvolume
*volume
) {
565 pa_bool_t do_volume_adj_here
;
566 pa_bool_t volume_is_norm
;
567 size_t block_size_max_sink
, block_size_max_sink_input
;
570 pa_sink_input_assert_ref(i
);
571 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
572 pa_assert(pa_frame_aligned(slength
, &i
->sink
->sample_spec
));
576 /* pa_log_debug("peek"); */
578 pa_assert(i
->thread_info
.state
== PA_SINK_INPUT_RUNNING
||
579 i
->thread_info
.state
== PA_SINK_INPUT_CORKED
||
580 i
->thread_info
.state
== PA_SINK_INPUT_DRAINED
);
582 block_size_max_sink_input
= i
->thread_info
.resampler
?
583 pa_resampler_max_block_size(i
->thread_info
.resampler
) :
584 pa_frame_align(pa_mempool_block_size_max(i
->core
->mempool
), &i
->sample_spec
);
586 block_size_max_sink
= pa_frame_align(pa_mempool_block_size_max(i
->core
->mempool
), &i
->sink
->sample_spec
);
588 /* Default buffer size */
590 slength
= pa_frame_align(CONVERT_BUFFER_LENGTH
, &i
->sink
->sample_spec
);
592 if (slength
> block_size_max_sink
)
593 slength
= block_size_max_sink
;
595 if (i
->thread_info
.resampler
) {
596 ilength
= pa_resampler_request(i
->thread_info
.resampler
, slength
);
599 ilength
= pa_frame_align(CONVERT_BUFFER_LENGTH
, &i
->sample_spec
);
603 if (ilength
> block_size_max_sink_input
)
604 ilength
= block_size_max_sink_input
;
606 /* If the channel maps of the sink and this stream differ, we need
607 * to adjust the volume *before* we resample. Otherwise we can do
608 * it after and leave it for the sink code */
610 do_volume_adj_here
= !pa_channel_map_equal(&i
->channel_map
, &i
->sink
->channel_map
);
611 volume_is_norm
= pa_cvolume_is_norm(&i
->thread_info
.soft_volume
) && !i
->thread_info
.muted
;
613 while (!pa_memblockq_is_readable(i
->thread_info
.render_memblockq
)) {
616 /* There's nothing in our render queue. We need to fill it up
617 * with data from the implementor. */
619 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
||
620 i
->pop(i
, ilength
, &tchunk
) < 0) {
622 /* OK, we're corked or the implementor didn't give us any
623 * data, so let's just hand out silence */
624 pa_atomic_store(&i
->thread_info
.drained
, 1);
626 pa_memblockq_seek(i
->thread_info
.render_memblockq
, (int64_t) slength
, PA_SEEK_RELATIVE
);
627 i
->thread_info
.playing_for
= 0;
628 if (i
->thread_info
.underrun_for
!= (uint64_t) -1)
629 i
->thread_info
.underrun_for
+= ilength
;
633 pa_atomic_store(&i
->thread_info
.drained
, 0);
635 pa_assert(tchunk
.length
> 0);
636 pa_assert(tchunk
.memblock
);
638 i
->thread_info
.underrun_for
= 0;
639 i
->thread_info
.playing_for
+= tchunk
.length
;
641 while (tchunk
.length
> 0) {
645 pa_memblock_ref(wchunk
.memblock
);
647 if (wchunk
.length
> block_size_max_sink_input
)
648 wchunk
.length
= block_size_max_sink_input
;
650 /* It might be necessary to adjust the volume here */
651 if (do_volume_adj_here
&& !volume_is_norm
) {
652 pa_memchunk_make_writable(&wchunk
, 0);
654 if (i
->thread_info
.muted
)
655 pa_silence_memchunk(&wchunk
, &i
->thread_info
.sample_spec
);
657 pa_volume_memchunk(&wchunk
, &i
->thread_info
.sample_spec
, &i
->thread_info
.soft_volume
);
660 if (!i
->thread_info
.resampler
)
661 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &wchunk
);
664 pa_resampler_run(i
->thread_info
.resampler
, &wchunk
, &rchunk
);
666 /* pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
668 if (rchunk
.memblock
) {
669 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &rchunk
);
670 pa_memblock_unref(rchunk
.memblock
);
674 pa_memblock_unref(wchunk
.memblock
);
676 tchunk
.index
+= wchunk
.length
;
677 tchunk
.length
-= wchunk
.length
;
680 pa_memblock_unref(tchunk
.memblock
);
683 pa_assert_se(pa_memblockq_peek(i
->thread_info
.render_memblockq
, chunk
) >= 0);
685 pa_assert(chunk
->length
> 0);
686 pa_assert(chunk
->memblock
);
688 /* pa_log_debug("peeking %lu", (unsigned long) chunk->length); */
690 if (chunk
->length
> block_size_max_sink
)
691 chunk
->length
= block_size_max_sink
;
693 /* Let's see if we had to apply the volume adjustment ourselves,
694 * or if this can be done by the sink for us */
696 if (do_volume_adj_here
)
697 /* We had different channel maps, so we already did the adjustment */
698 pa_cvolume_reset(volume
, i
->sink
->sample_spec
.channels
);
699 else if (i
->thread_info
.muted
)
700 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
701 pa_cvolume_mute(volume
, i
->sink
->sample_spec
.channels
);
703 *volume
= i
->thread_info
.soft_volume
;
706 /* Called from thread context */
707 void pa_sink_input_drop(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
708 pa_sink_input_assert_ref(i
);
710 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
711 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
712 pa_assert(nbytes
> 0);
714 /* pa_log_debug("dropping %lu", (unsigned long) nbytes); */
716 pa_memblockq_drop(i
->thread_info
.render_memblockq
, nbytes
);
719 /* Called from thread context */
720 void pa_sink_input_process_rewind(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
722 pa_bool_t called
= FALSE
;
723 pa_sink_input_assert_ref(i
);
725 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
726 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
728 /* pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes, (unsigned long) i->thread_info.rewrite_nbytes); */
730 lbq
= pa_memblockq_get_length(i
->thread_info
.render_memblockq
);
732 if (nbytes
> 0 && !i
->thread_info
.dont_rewind_render
) {
733 pa_log_debug("Have to rewind %lu bytes on render memblockq.", (unsigned long) nbytes
);
734 pa_memblockq_rewind(i
->thread_info
.render_memblockq
, nbytes
);
737 if (i
->thread_info
.rewrite_nbytes
== (size_t) -1) {
739 /* We were asked to drop all buffered data, and rerequest new
740 * data from implementor the next time push() is called */
742 pa_memblockq_flush_write(i
->thread_info
.render_memblockq
);
744 } else if (i
->thread_info
.rewrite_nbytes
> 0) {
745 size_t max_rewrite
, amount
;
747 /* Calculate how much make sense to rewrite at most */
748 max_rewrite
= nbytes
+ lbq
;
750 /* Transform into local domain */
751 if (i
->thread_info
.resampler
)
752 max_rewrite
= pa_resampler_request(i
->thread_info
.resampler
, max_rewrite
);
754 /* Calculate how much of the rewinded data should actually be rewritten */
755 amount
= PA_MIN(i
->thread_info
.rewrite_nbytes
, max_rewrite
);
758 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) amount
);
760 /* Tell the implementor */
761 if (i
->process_rewind
)
762 i
->process_rewind(i
, amount
);
765 /* Convert back to to sink domain */
766 if (i
->thread_info
.resampler
)
767 amount
= pa_resampler_result(i
->thread_info
.resampler
, amount
);
770 /* Ok, now update the write pointer */
771 pa_memblockq_seek(i
->thread_info
.render_memblockq
, - ((int64_t) amount
), PA_SEEK_RELATIVE
);
773 if (i
->thread_info
.rewrite_flush
)
774 pa_memblockq_silence(i
->thread_info
.render_memblockq
);
776 /* And reset the resampler */
777 if (i
->thread_info
.resampler
)
778 pa_resampler_reset(i
->thread_info
.resampler
);
783 if (i
->process_rewind
)
784 i
->process_rewind(i
, 0);
786 i
->thread_info
.rewrite_nbytes
= 0;
787 i
->thread_info
.rewrite_flush
= FALSE
;
788 i
->thread_info
.dont_rewind_render
= FALSE
;
791 /* Called from thread context */
792 void pa_sink_input_update_max_rewind(pa_sink_input
*i
, size_t nbytes
/* in the sink's sample spec */) {
793 pa_sink_input_assert_ref(i
);
794 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
795 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
797 pa_memblockq_set_maxrewind(i
->thread_info
.render_memblockq
, nbytes
);
799 if (i
->update_max_rewind
)
800 i
->update_max_rewind(i
, i
->thread_info
.resampler
? pa_resampler_request(i
->thread_info
.resampler
, nbytes
) : nbytes
);
803 /* Called from thread context */
804 void pa_sink_input_update_max_request(pa_sink_input
*i
, size_t nbytes
/* in the sink's sample spec */) {
805 pa_sink_input_assert_ref(i
);
806 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
807 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
809 if (i
->update_max_request
)
810 i
->update_max_request(i
, i
->thread_info
.resampler
? pa_resampler_request(i
->thread_info
.resampler
, nbytes
) : nbytes
);
813 /* Called from thread context */
814 static pa_usec_t
fixup_latency(pa_sink
*s
, pa_usec_t usec
) {
815 pa_sink_assert_ref(s
);
817 if (usec
== (pa_usec_t
) -1)
820 if (s
->thread_info
.max_latency
> 0 && usec
> s
->thread_info
.max_latency
)
821 usec
= s
->thread_info
.max_latency
;
823 if (s
->thread_info
.min_latency
> 0 && usec
< s
->thread_info
.min_latency
)
824 usec
= s
->thread_info
.min_latency
;
829 /* Called from thread context */
830 pa_usec_t
pa_sink_input_set_requested_latency_within_thread(pa_sink_input
*i
, pa_usec_t usec
) {
831 pa_sink_input_assert_ref(i
);
833 usec
= fixup_latency(i
->sink
, usec
);
834 i
->thread_info
.requested_sink_latency
= usec
;
835 pa_sink_invalidate_requested_latency(i
->sink
);
840 /* Called from main context */
841 pa_usec_t
pa_sink_input_set_requested_latency(pa_sink_input
*i
, pa_usec_t usec
) {
842 pa_sink_input_assert_ref(i
);
844 if (PA_SINK_INPUT_IS_LINKED(i
->state
))
845 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
847 /* If this sink input is not realized yet, we have to touch
848 * the thread info data directly */
850 i
->thread_info
.requested_sink_latency
= usec
;
855 /* Called from main context */
856 pa_usec_t
pa_sink_input_get_requested_latency(pa_sink_input
*i
) {
859 pa_sink_input_assert_ref(i
);
861 if (PA_SINK_INPUT_IS_LINKED(i
->state
))
862 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
) == 0);
864 /* If this sink input is not realized yet, we have to touch
865 * the thread info data directly */
866 usec
= i
->thread_info
.requested_sink_latency
;
871 /* Called from main context */
872 void pa_sink_input_set_volume(pa_sink_input
*i
, const pa_cvolume
*volume
, pa_bool_t save
) {
873 pa_sink_input_assert_ref(i
);
874 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
876 pa_assert(pa_cvolume_valid(volume
));
877 pa_assert(pa_cvolume_compatible(volume
, &i
->sample_spec
));
879 if (pa_cvolume_equal(volume
, &i
->virtual_volume
))
882 i
->virtual_volume
= *volume
;
883 i
->save_volume
= save
;
885 if (i
->sink
->flags
& PA_SINK_FLAT_VOLUME
) {
886 pa_cvolume new_volume
;
888 /* We are in flat volume mode, so let's update all sink input
889 * volumes and update the flat volume of the sink */
891 pa_sink_update_flat_volume(i
->sink
, &new_volume
);
892 pa_sink_set_volume(i
->sink
, &new_volume
, FALSE
, TRUE
);
896 /* OK, we are in normal volume mode. The volume only affects
898 pa_sw_cvolume_multiply(&i
->soft_volume
, volume
, &i
->volume_factor
);
900 /* Hooks have the ability to play games with i->soft_volume */
901 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_SET_VOLUME
], i
);
903 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME
, NULL
, 0, NULL
) == 0);
906 /* The virtual volume changed, let's tell people so */
907 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
910 /* Called from main context */
911 const pa_cvolume
*pa_sink_input_get_volume(pa_sink_input
*i
) {
912 pa_sink_input_assert_ref(i
);
913 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
915 return &i
->virtual_volume
;
918 /* Called from main context */
919 void pa_sink_input_set_mute(pa_sink_input
*i
, pa_bool_t mute
, pa_bool_t save
) {
921 pa_sink_input_assert_ref(i
);
922 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
924 if (!i
->muted
== !mute
)
928 i
->save_muted
= save
;
930 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE
, NULL
, 0, NULL
) == 0);
931 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
934 /* Called from main context */
935 pa_bool_t
pa_sink_input_get_mute(pa_sink_input
*i
) {
936 pa_sink_input_assert_ref(i
);
937 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
942 /* Called from main thread */
943 void pa_sink_input_update_proplist(pa_sink_input
*i
, pa_update_mode_t mode
, pa_proplist
*p
) {
944 pa_sink_input_assert_ref(i
);
947 pa_proplist_update(i
->proplist
, mode
, p
);
949 if (PA_SINK_IS_LINKED(i
->state
)) {
950 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED
], i
);
951 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
955 /* Called from main context */
956 void pa_sink_input_cork(pa_sink_input
*i
, pa_bool_t b
) {
957 pa_sink_input_assert_ref(i
);
958 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
960 sink_input_set_state(i
, b
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
);
963 /* Called from main context */
964 int pa_sink_input_set_rate(pa_sink_input
*i
, uint32_t rate
) {
965 pa_sink_input_assert_ref(i
);
966 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
967 pa_return_val_if_fail(i
->thread_info
.resampler
, -PA_ERR_BADSTATE
);
969 if (i
->sample_spec
.rate
== rate
)
972 i
->sample_spec
.rate
= rate
;
974 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
976 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
980 /* Called from main context */
981 void pa_sink_input_set_name(pa_sink_input
*i
, const char *name
) {
983 pa_sink_input_assert_ref(i
);
985 if (!name
&& !pa_proplist_contains(i
->proplist
, PA_PROP_MEDIA_NAME
))
988 old
= pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
);
990 if (old
&& name
&& !strcmp(old
, name
))
994 pa_proplist_sets(i
->proplist
, PA_PROP_MEDIA_NAME
, name
);
996 pa_proplist_unset(i
->proplist
, PA_PROP_MEDIA_NAME
);
998 if (PA_SINK_INPUT_IS_LINKED(i
->state
)) {
999 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED
], i
);
1000 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
1004 /* Called from main context */
1005 pa_resample_method_t
pa_sink_input_get_resample_method(pa_sink_input
*i
) {
1006 pa_sink_input_assert_ref(i
);
1008 return i
->actual_resample_method
;
1011 /* Called from main context */
1012 pa_bool_t
pa_sink_input_may_move(pa_sink_input
*i
) {
1013 pa_sink_input_assert_ref(i
);
1014 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
1016 if (i
->flags
& PA_SINK_INPUT_DONT_MOVE
)
1019 if (i
->sync_next
|| i
->sync_prev
) {
1020 pa_log_warn("Moving synchronised streams not supported.");
1027 /* Called from main context */
1028 pa_bool_t
pa_sink_input_may_move_to(pa_sink_input
*i
, pa_sink
*dest
) {
1029 pa_sink_input_assert_ref(i
);
1030 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
1031 pa_sink_assert_ref(dest
);
1033 if (dest
== i
->sink
)
1036 if (!pa_sink_input_may_move(i
))
1039 if (pa_idxset_size(dest
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
1040 pa_log_warn("Failed to move sink input: too many inputs per sink.");
1045 if (!i
->may_move_to(i
, dest
))
1051 /* Called from main context */
1052 int pa_sink_input_start_move(pa_sink_input
*i
) {
1053 pa_source_output
*o
, *p
= NULL
;
1057 pa_sink_input_assert_ref(i
);
1058 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
1061 if (!pa_sink_input_may_move(i
))
1062 return -PA_ERR_NOTSUPPORTED
;
1064 if ((r
= pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE_START
], i
)) < 0)
1069 /* Kill directly connected outputs */
1070 while ((o
= pa_idxset_first(i
->direct_outputs
, NULL
))) {
1072 pa_source_output_kill(o
);
1075 pa_assert(pa_idxset_isempty(i
->direct_outputs
));
1077 pa_idxset_remove_by_data(i
->sink
->inputs
, i
, NULL
);
1079 if (pa_sink_input_get_state(i
) == PA_SINK_INPUT_CORKED
)
1080 pa_assert_se(i
->sink
->n_corked
-- >= 1);
1082 if (i
->sink
->flags
& PA_SINK_FLAT_VOLUME
) {
1083 pa_cvolume new_volume
;
1085 /* Make the absolute volume relative */
1086 i
->virtual_volume
= i
->soft_volume
;
1087 i
->soft_volume
= i
->volume_factor
;
1089 /* We might need to update the sink's volume if we are in flat
1091 pa_sink_update_flat_volume(i
->sink
, &new_volume
);
1092 pa_sink_set_volume(i
->sink
, &new_volume
, FALSE
, FALSE
);
1095 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_START_MOVE
, i
, 0, NULL
) == 0);
1097 pa_sink_update_status(i
->sink
);
1103 /* Called from main context */
1104 int pa_sink_input_finish_move(pa_sink_input
*i
, pa_sink
*dest
, pa_bool_t save
) {
1105 pa_resampler
*new_resampler
;
1107 pa_sink_input_assert_ref(i
);
1108 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
1109 pa_assert(!i
->sink
);
1110 pa_sink_assert_ref(dest
);
1112 if (!pa_sink_input_may_move_to(i
, dest
))
1113 return -PA_ERR_NOTSUPPORTED
;
1115 if (i
->thread_info
.resampler
&&
1116 pa_sample_spec_equal(pa_resampler_output_sample_spec(i
->thread_info
.resampler
), &dest
->sample_spec
) &&
1117 pa_channel_map_equal(pa_resampler_output_channel_map(i
->thread_info
.resampler
), &dest
->channel_map
))
1119 /* Try to reuse the old resampler if possible */
1120 new_resampler
= i
->thread_info
.resampler
;
1122 else if ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
1123 !pa_sample_spec_equal(&i
->sample_spec
, &dest
->sample_spec
) ||
1124 !pa_channel_map_equal(&i
->channel_map
, &dest
->channel_map
)) {
1126 /* Okey, we need a new resampler for the new sink */
1128 if (!(new_resampler
= pa_resampler_new(
1130 &i
->sample_spec
, &i
->channel_map
,
1131 &dest
->sample_spec
, &dest
->channel_map
,
1132 i
->requested_resample_method
,
1133 ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
1134 ((i
->flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
1135 (i
->core
->disable_remixing
|| (i
->flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
1136 pa_log_warn("Unsupported resampling operation.");
1137 return -PA_ERR_NOTSUPPORTED
;
1140 new_resampler
= NULL
;
1143 i
->save_sink
= save
;
1144 pa_idxset_put(dest
->inputs
, i
, NULL
);
1146 if (pa_sink_input_get_state(i
) == PA_SINK_INPUT_CORKED
)
1147 i
->sink
->n_corked
++;
1149 /* Replace resampler and render queue */
1150 if (new_resampler
!= i
->thread_info
.resampler
) {
1152 if (i
->thread_info
.resampler
)
1153 pa_resampler_free(i
->thread_info
.resampler
);
1154 i
->thread_info
.resampler
= new_resampler
;
1156 pa_memblockq_free(i
->thread_info
.render_memblockq
);
1158 i
->thread_info
.render_memblockq
= pa_memblockq_new(
1160 MEMBLOCKQ_MAXLENGTH
,
1162 pa_frame_size(&i
->sink
->sample_spec
),
1169 pa_sink_update_status(dest
);
1171 if (i
->sink
->flags
& PA_SINK_FLAT_VOLUME
) {
1172 pa_cvolume new_volume
;
1174 /* Make relative volume absolute again */
1175 pa_cvolume t
= dest
->virtual_volume
;
1176 pa_cvolume_remap(&t
, &dest
->channel_map
, &i
->channel_map
);
1177 pa_sw_cvolume_multiply(&i
->virtual_volume
, &i
->virtual_volume
, &t
);
1179 /* We might need to update the sink's volume if we are in flat volume mode. */
1180 pa_sink_update_flat_volume(i
->sink
, &new_volume
);
1181 pa_sink_set_volume(i
->sink
, &new_volume
, FALSE
, FALSE
);
1184 pa_assert_se(pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_FINISH_MOVE
, i
, 0, NULL
) == 0);
1186 pa_log_debug("Successfully moved sink input %i to %s.", i
->index
, dest
->name
);
1188 /* Notify everyone */
1192 pa_hook_fire(&i
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH
], i
);
1193 pa_subscription_post(i
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
1198 /* Called from main context */
1199 int pa_sink_input_move_to(pa_sink_input
*i
, pa_sink
*dest
, pa_bool_t save
) {
1202 pa_sink_input_assert_ref(i
);
1203 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
1205 pa_sink_assert_ref(dest
);
1207 if (dest
== i
->sink
)
1210 if (!pa_sink_input_may_move_to(i
, dest
))
1211 return -PA_ERR_NOTSUPPORTED
;
1213 if ((r
= pa_sink_input_start_move(i
)) < 0)
1216 if ((r
= pa_sink_input_finish_move(i
, dest
, save
)) < 0)
1222 /* Called from IO thread context */
1223 void pa_sink_input_set_state_within_thread(pa_sink_input
*i
, pa_sink_input_state_t state
) {
1224 pa_bool_t corking
, uncorking
;
1225 pa_sink_input_assert_ref(i
);
1227 if (state
== i
->thread_info
.state
)
1230 if ((state
== PA_SINK_INPUT_DRAINED
|| state
== PA_SINK_INPUT_RUNNING
) &&
1231 !(i
->thread_info
.state
== PA_SINK_INPUT_DRAINED
|| i
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
1232 pa_atomic_store(&i
->thread_info
.drained
, 1);
1234 corking
= state
== PA_SINK_INPUT_CORKED
&& i
->thread_info
.state
== PA_SINK_INPUT_RUNNING
;
1235 uncorking
= i
->thread_info
.state
== PA_SINK_INPUT_CORKED
&& state
== PA_SINK_INPUT_RUNNING
;
1237 if (i
->state_change
)
1238 i
->state_change(i
, state
);
1240 i
->thread_info
.state
= state
;
1244 pa_log_debug("Requesting rewind due to corking");
1246 /* This will tell the implementing sink input driver to rewind
1247 * so that the unplayed already mixed data is not lost */
1248 pa_sink_input_request_rewind(i
, 0, TRUE
, TRUE
, FALSE
);
1250 } else if (uncorking
) {
1252 i
->thread_info
.underrun_for
= (uint64_t) -1;
1253 i
->thread_info
.playing_for
= 0;
1255 pa_log_debug("Requesting rewind due to uncorking");
1257 /* OK, we're being uncorked. Make sure we're not rewound when
1258 * the hw buffer is remixed and request a remix. */
1259 pa_sink_input_request_rewind(i
, 0, FALSE
, TRUE
, TRUE
);
1263 /* Called from thread context, except when it is not. */
1264 int pa_sink_input_process_msg(pa_msgobject
*o
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
1265 pa_sink_input
*i
= PA_SINK_INPUT(o
);
1266 pa_sink_input_assert_ref(i
);
1270 case PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME
:
1271 if (!pa_cvolume_equal(&i
->thread_info
.soft_volume
, &i
->soft_volume
)) {
1272 i
->thread_info
.soft_volume
= i
->soft_volume
;
1273 pa_sink_input_request_rewind(i
, 0, TRUE
, FALSE
, FALSE
);
1277 case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE
:
1278 if (i
->thread_info
.muted
!= i
->muted
) {
1279 i
->thread_info
.muted
= i
->muted
;
1280 pa_sink_input_request_rewind(i
, 0, TRUE
, FALSE
, FALSE
);
1284 case PA_SINK_INPUT_MESSAGE_GET_LATENCY
: {
1285 pa_usec_t
*r
= userdata
;
1286 pa_usec_t sink_usec
= 0;
1288 r
[0] += pa_bytes_to_usec(pa_memblockq_get_length(i
->thread_info
.render_memblockq
), &i
->sink
->sample_spec
);
1290 if (i
->sink
->parent
.process_msg(PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_GET_LATENCY
, &sink_usec
, 0, NULL
) >= 0)
1296 case PA_SINK_INPUT_MESSAGE_SET_RATE
:
1298 i
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1299 pa_resampler_set_input_rate(i
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1303 case PA_SINK_INPUT_MESSAGE_SET_STATE
: {
1304 pa_sink_input
*ssync
;
1306 pa_sink_input_set_state_within_thread(i
, PA_PTR_TO_UINT(userdata
));
1308 for (ssync
= i
->thread_info
.sync_prev
; ssync
; ssync
= ssync
->thread_info
.sync_prev
)
1309 pa_sink_input_set_state_within_thread(ssync
, PA_PTR_TO_UINT(userdata
));
1311 for (ssync
= i
->thread_info
.sync_next
; ssync
; ssync
= ssync
->thread_info
.sync_next
)
1312 pa_sink_input_set_state_within_thread(ssync
, PA_PTR_TO_UINT(userdata
));
1317 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
: {
1318 pa_usec_t
*usec
= userdata
;
1320 *usec
= pa_sink_input_set_requested_latency_within_thread(i
, *usec
);
1324 case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
1325 pa_usec_t
*r
= userdata
;
1327 *r
= i
->thread_info
.requested_sink_latency
;
1332 return -PA_ERR_NOTIMPLEMENTED
;
1335 /* Called from main thread */
1336 pa_sink_input_state_t
pa_sink_input_get_state(pa_sink_input
*i
) {
1337 pa_sink_input_assert_ref(i
);
1339 if (i
->state
== PA_SINK_INPUT_RUNNING
|| i
->state
== PA_SINK_INPUT_DRAINED
)
1340 return pa_atomic_load(&i
->thread_info
.drained
) ? PA_SINK_INPUT_DRAINED
: PA_SINK_INPUT_RUNNING
;
1345 /* Called from IO context */
1346 pa_bool_t
pa_sink_input_safe_to_remove(pa_sink_input
*i
) {
1347 pa_sink_input_assert_ref(i
);
1349 if (PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
))
1350 return pa_memblockq_is_empty(i
->thread_info
.render_memblockq
);
1355 /* Called from IO context */
1356 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
) {
1359 /* If 'rewrite' is TRUE the sink is rewound as far as requested
1360 * and possible and the exact value of this is passed back the
1361 * implementor via process_rewind(). If 'flush' is also TRUE all
1362 * already rendered data is also dropped.
1364 * If 'rewrite' is FALSE the sink is rewound as far as requested
1365 * and possible and the already rendered data is dropped so that
1366 * in the next iteration we read new data from the
1367 * implementor. This implies 'flush' is TRUE. If
1368 * dont_rewind_render is TRUE then the render memblockq is not
1371 pa_sink_input_assert_ref(i
);
1373 nbytes
= PA_MAX(i
->thread_info
.rewrite_nbytes
, nbytes
);
1375 /* pa_log_debug("request rewrite %lu", (unsigned long) nbytes); */
1377 /* We don't take rewind requests while we are corked */
1378 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
1381 pa_assert(rewrite
|| flush
);
1382 pa_assert(!dont_rewind_render
|| !rewrite
);
1384 /* Calculate how much we can rewind locally without having to
1387 lbq
= pa_memblockq_get_length(i
->thread_info
.render_memblockq
);
1391 /* Check if rewinding for the maximum is requested, and if so, fix up */
1394 /* Calculate maximum number of bytes that could be rewound in theory */
1395 nbytes
= i
->sink
->thread_info
.max_rewind
+ lbq
;
1397 /* Transform from sink domain */
1398 if (i
->thread_info
.resampler
)
1399 nbytes
= pa_resampler_request(i
->thread_info
.resampler
, nbytes
);
1402 if (i
->thread_info
.rewrite_nbytes
!= (size_t) -1) {
1404 /* Make sure to not overwrite over underruns */
1405 if (nbytes
> i
->thread_info
.playing_for
)
1406 nbytes
= (size_t) i
->thread_info
.playing_for
;
1408 i
->thread_info
.rewrite_nbytes
= nbytes
;
1410 i
->thread_info
.rewrite_nbytes
= (size_t) -1;
1413 i
->thread_info
.rewrite_flush
=
1414 i
->thread_info
.rewrite_flush
||
1415 (flush
&& i
->thread_info
.rewrite_nbytes
!= 0);
1417 i
->thread_info
.dont_rewind_render
=
1418 i
->thread_info
.dont_rewind_render
||
1421 if (nbytes
!= (size_t) -1) {
1423 /* Transform to sink domain */
1424 if (i
->thread_info
.resampler
)
1425 nbytes
= pa_resampler_result(i
->thread_info
.resampler
, nbytes
);
1428 pa_sink_request_rewind(i
->sink
, nbytes
- lbq
);
1430 /* This call will make sure process_rewind() is called later */
1431 pa_sink_request_rewind(i
->sink
, 0);
1435 /* Called from main context */
1436 pa_memchunk
* pa_sink_input_get_silence(pa_sink_input
*i
, pa_memchunk
*ret
) {
1437 pa_sink_input_assert_ref(i
);
1440 pa_silence_memchunk_get(
1441 &i
->core
->silence_cache
,
1445 i
->thread_info
.resampler
? pa_resampler_max_block_size(i
->thread_info
.resampler
) : 0);