4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
7 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
33 #include <pulse/utf8.h>
34 #include <pulse/xmalloc.h>
36 #include <pulsecore/sample-util.h>
37 #include <pulsecore/core-subscribe.h>
38 #include <pulsecore/log.h>
39 #include <pulsecore/play-memblockq.h>
40 #include <pulsecore/namereg.h>
42 #include "sink-input.h"
44 #define MEMBLOCKQ_MAXLENGTH (16*1024*1024)
45 #define CONVERT_BUFFER_LENGTH (PA_PAGE_SIZE)
46 #define MOVE_BUFFER_LENGTH (PA_PAGE_SIZE*256)
48 static PA_DEFINE_CHECK_TYPE(pa_sink_input
, pa_msgobject
);
50 static void sink_input_free(pa_object
*o
);
52 pa_sink_input_new_data
* pa_sink_input_new_data_init(pa_sink_input_new_data
*data
) {
55 memset(data
, 0, sizeof(*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_set_muted(pa_sink_input_new_data
*data
, pa_bool_t mute
) {
86 data
->muted_is_set
= TRUE
;
90 void pa_sink_input_new_data_done(pa_sink_input_new_data
*data
) {
93 pa_proplist_free(data
->proplist
);
96 pa_sink_input
* pa_sink_input_new(
98 pa_sink_input_new_data
*data
,
99 pa_sink_input_flags_t flags
) {
102 pa_resampler
*resampler
= NULL
;
103 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
104 pa_memblock
*silence
;
109 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_NEW
], data
) < 0)
112 pa_return_null_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
));
115 data
->sink
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SINK
, 1);
117 pa_return_null_if_fail(data
->sink
);
118 pa_return_null_if_fail(pa_sink_get_state(data
->sink
) != PA_SINK_UNLINKED
);
119 pa_return_null_if_fail(!data
->sync_base
|| (data
->sync_base
->sink
== data
->sink
&& pa_sink_input_get_state(data
->sync_base
) == PA_SINK_INPUT_CORKED
));
121 if (!data
->sample_spec_is_set
)
122 data
->sample_spec
= data
->sink
->sample_spec
;
124 pa_return_null_if_fail(pa_sample_spec_valid(&data
->sample_spec
));
126 if (!data
->channel_map_is_set
) {
127 if (data
->sink
->channel_map
.channels
== data
->sample_spec
.channels
)
128 data
->channel_map
= data
->sink
->channel_map
;
130 pa_return_null_if_fail(pa_channel_map_init_auto(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
));
133 pa_return_null_if_fail(pa_channel_map_valid(&data
->channel_map
));
134 pa_return_null_if_fail(data
->channel_map
.channels
== data
->sample_spec
.channels
);
136 if (!data
->volume_is_set
)
137 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
139 pa_return_null_if_fail(pa_cvolume_valid(&data
->volume
));
140 pa_return_null_if_fail(data
->volume
.channels
== data
->sample_spec
.channels
);
142 if (!data
->muted_is_set
)
145 if (flags
& PA_SINK_INPUT_FIX_FORMAT
)
146 data
->sample_spec
.format
= data
->sink
->sample_spec
.format
;
148 if (flags
& PA_SINK_INPUT_FIX_RATE
)
149 data
->sample_spec
.rate
= data
->sink
->sample_spec
.rate
;
151 if (flags
& PA_SINK_INPUT_FIX_CHANNELS
) {
152 data
->sample_spec
.channels
= data
->sink
->sample_spec
.channels
;
153 data
->channel_map
= data
->sink
->channel_map
;
156 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
157 pa_assert(pa_channel_map_valid(&data
->channel_map
));
159 /* Due to the fixing of the sample spec the volume might not match anymore */
160 if (data
->volume
.channels
!= data
->sample_spec
.channels
)
161 pa_cvolume_set(&data
->volume
, data
->sample_spec
.channels
, pa_cvolume_avg(&data
->volume
));
163 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
164 data
->resample_method
= core
->resample_method
;
166 pa_return_null_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
);
168 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_FIXATE
], data
) < 0)
171 if (pa_idxset_size(data
->sink
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
172 pa_log_warn("Failed to create sink input: too many inputs per sink.");
176 if ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
177 !pa_sample_spec_equal(&data
->sample_spec
, &data
->sink
->sample_spec
) ||
178 !pa_channel_map_equal(&data
->channel_map
, &data
->sink
->channel_map
)) {
180 if (!(resampler
= pa_resampler_new(
182 &data
->sample_spec
, &data
->channel_map
,
183 &data
->sink
->sample_spec
, &data
->sink
->channel_map
,
184 data
->resample_method
,
185 ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
186 ((flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
187 (core
->disable_remixing
|| (flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
188 pa_log_warn("Unsupported resampling operation.");
192 data
->resample_method
= pa_resampler_get_method(resampler
);
195 i
= pa_msgobject_new(pa_sink_input
);
196 i
->parent
.parent
.free
= sink_input_free
;
197 i
->parent
.process_msg
= pa_sink_input_process_msg
;
200 i
->state
= PA_SINK_INPUT_INIT
;
202 i
->proplist
= pa_proplist_copy(data
->proplist
);
203 i
->driver
= pa_xstrdup(data
->driver
);
204 i
->module
= data
->module
;
205 i
->sink
= data
->sink
;
206 i
->client
= data
->client
;
208 i
->resample_method
= data
->resample_method
;
209 i
->sample_spec
= data
->sample_spec
;
210 i
->channel_map
= data
->channel_map
;
212 i
->volume
= data
->volume
;
213 i
->muted
= data
->muted
;
215 if (data
->sync_base
) {
216 i
->sync_next
= data
->sync_base
->sync_next
;
217 i
->sync_prev
= data
->sync_base
;
219 if (data
->sync_base
->sync_next
)
220 data
->sync_base
->sync_next
->sync_prev
= i
;
221 data
->sync_base
->sync_next
= i
;
223 i
->sync_next
= i
->sync_prev
= NULL
;
227 i
->set_max_rewind
= NULL
;
229 i
->get_latency
= NULL
;
236 i
->thread_info
.state
= i
->state
;
237 i
->thread_info
.attached
= FALSE
;
238 pa_atomic_store(&i
->thread_info
.drained
, 1);
239 pa_atomic_store(&i
->thread_info
.render_memblockq_is_empty
, 0);
240 i
->thread_info
.sample_spec
= i
->sample_spec
;
241 i
->thread_info
.resampler
= resampler
;
242 i
->thread_info
.volume
= i
->volume
;
243 i
->thread_info
.muted
= i
->muted
;
244 i
->thread_info
.requested_sink_latency
= 0;
245 i
->thread_info
.rewrite_nbytes
= 0;
246 i
->thread_info
.ignore_rewind
= FALSE
;
248 silence
= pa_silence_memblock_new(i
->sink
->core
->mempool
, &i
->sink
->sample_spec
, 0);
250 i
->thread_info
.render_memblockq
= pa_memblockq_new(
254 pa_frame_size(&i
->sink
->sample_spec
),
260 pa_memblock_unref(silence
);
262 pa_assert_se(pa_idxset_put(core
->sink_inputs
, pa_sink_input_ref(i
), &i
->index
) == 0);
263 pa_assert_se(pa_idxset_put(i
->sink
->inputs
, i
, NULL
) == 0);
265 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
267 pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)),
269 pa_sample_spec_snprint(st
, sizeof(st
), &i
->sample_spec
),
270 pa_channel_map_snprint(cm
, sizeof(cm
), &i
->channel_map
));
272 /* Don't forget to call pa_sink_input_put! */
277 static void update_n_corked(pa_sink_input
*i
, pa_sink_input_state_t state
) {
280 if (i
->state
== PA_SINK_INPUT_CORKED
&& state
!= PA_SINK_INPUT_CORKED
)
281 pa_assert_se(i
->sink
->n_corked
-- >= 1);
282 else if (i
->state
!= PA_SINK_INPUT_CORKED
&& state
== PA_SINK_INPUT_CORKED
)
285 pa_sink_update_status(i
->sink
);
288 static int sink_input_set_state(pa_sink_input
*i
, pa_sink_input_state_t state
) {
289 pa_sink_input
*ssync
;
292 if (state
== PA_SINK_INPUT_DRAINED
)
293 state
= PA_SINK_INPUT_RUNNING
;
295 if (i
->state
== state
)
298 if (pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
) < 0)
301 update_n_corked(i
, state
);
304 for (ssync
= i
->sync_prev
; ssync
; ssync
= ssync
->sync_prev
) {
305 update_n_corked(ssync
, state
);
306 ssync
->state
= state
;
308 for (ssync
= i
->sync_next
; ssync
; ssync
= ssync
->sync_next
) {
309 update_n_corked(ssync
, state
);
310 ssync
->state
= state
;
313 if (state
!= PA_SINK_INPUT_UNLINKED
)
314 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED
], i
);
319 void pa_sink_input_unlink(pa_sink_input
*i
) {
323 /* See pa_sink_unlink() for a couple of comments how this function
326 pa_sink_input_ref(i
);
328 linked
= PA_SINK_INPUT_LINKED(i
->state
);
331 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK
], i
);
334 i
->sync_prev
->sync_next
= i
->sync_next
;
336 i
->sync_next
->sync_prev
= i
->sync_prev
;
338 i
->sync_prev
= i
->sync_next
= NULL
;
340 pa_idxset_remove_by_data(i
->sink
->core
->sink_inputs
, i
, NULL
);
341 if (pa_idxset_remove_by_data(i
->sink
->inputs
, i
, NULL
))
342 pa_sink_input_unref(i
);
345 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_REMOVE_INPUT
, i
, 0, NULL
);
346 sink_input_set_state(i
, PA_SINK_INPUT_UNLINKED
);
347 pa_sink_update_status(i
->sink
);
349 i
->state
= PA_SINK_INPUT_UNLINKED
;
353 i
->set_max_rewind
= NULL
;
355 i
->get_latency
= NULL
;
362 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, i
->index
);
363 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST
], i
);
367 pa_sink_input_unref(i
);
370 static void sink_input_free(pa_object
*o
) {
371 pa_sink_input
* i
= PA_SINK_INPUT(o
);
374 pa_assert(pa_sink_input_refcnt(i
) == 0);
376 if (PA_SINK_INPUT_LINKED(i
->state
))
377 pa_sink_input_unlink(i
);
379 pa_log_info("Freeing input %u \"%s\"", i
->index
, pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)));
381 pa_assert(!i
->thread_info
.attached
);
383 if (i
->thread_info
.render_memblockq
)
384 pa_memblockq_free(i
->thread_info
.render_memblockq
);
386 if (i
->thread_info
.resampler
)
387 pa_resampler_free(i
->thread_info
.resampler
);
390 pa_proplist_free(i
->proplist
);
396 void pa_sink_input_put(pa_sink_input
*i
) {
397 pa_sink_input_assert_ref(i
);
399 pa_assert(i
->state
== PA_SINK_INPUT_INIT
);
401 pa_assert(i
->rewind
);
403 i
->thread_info
.state
= i
->state
= i
->flags
& PA_SINK_INPUT_START_CORKED
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
;
404 i
->thread_info
.volume
= i
->volume
;
405 i
->thread_info
.muted
= i
->muted
;
407 if (i
->state
== PA_SINK_INPUT_CORKED
)
410 pa_sink_update_status(i
->sink
);
411 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_ADD_INPUT
, i
, 0, NULL
);
413 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_NEW
, i
->index
);
414 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PUT
], i
);
416 /* Please note that if you change something here, you have to
417 change something in pa_sink_input_move() with the ghost stream
421 void pa_sink_input_kill(pa_sink_input
*i
) {
422 pa_sink_input_assert_ref(i
);
423 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
429 pa_usec_t
pa_sink_input_get_latency(pa_sink_input
*i
) {
432 pa_sink_input_assert_ref(i
);
433 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
435 if (pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_GET_LATENCY
, &r
, 0, NULL
) < 0)
439 r
+= i
->get_latency(i
);
444 /* Called from thread context */
445 int pa_sink_input_peek(pa_sink_input
*i
, size_t slength
/* in sink frames */, pa_memchunk
*chunk
, pa_cvolume
*volume
) {
446 pa_bool_t do_volume_adj_here
;
447 pa_bool_t volume_is_norm
;
448 size_t block_size_max_sink
, block_size_max_sink_input
;
451 pa_sink_input_assert_ref(i
);
452 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
453 pa_assert(pa_frame_aligned(slength
, &i
->sink
->sample_spec
));
457 pa_log_debug("peek");
459 if (!i
->pop
|| i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
462 pa_assert(i
->thread_info
.state
== PA_SINK_INPUT_RUNNING
|| i
->thread_info
.state
== PA_SINK_INPUT_DRAINED
);
464 /* If there's still some rewrite request the handle, but the sink
465 didn't do this for us, we do it here. However, since the sink
466 apparently doesn't support rewinding, we pass 0 here. This still
467 allows rewinding through the render buffer. */
468 pa_sink_input_rewind(i
, 0);
470 block_size_max_sink_input
= i
->thread_info
.resampler
?
471 pa_resampler_max_block_size(i
->thread_info
.resampler
) :
472 pa_frame_align(pa_mempool_block_size_max(i
->sink
->core
->mempool
), &i
->sample_spec
);
474 block_size_max_sink
= pa_frame_align(pa_mempool_block_size_max(i
->sink
->core
->mempool
), &i
->sink
->sample_spec
);
476 /* Default buffer size */
478 slength
= pa_frame_align(CONVERT_BUFFER_LENGTH
, &i
->sink
->sample_spec
);
480 if (slength
> block_size_max_sink
)
481 slength
= block_size_max_sink
;
483 if (i
->thread_info
.resampler
) {
484 ilength
= pa_resampler_request(i
->thread_info
.resampler
, slength
);
487 ilength
= pa_frame_align(CONVERT_BUFFER_LENGTH
, &i
->sample_spec
);
491 if (ilength
> block_size_max_sink_input
)
492 ilength
= block_size_max_sink_input
;
494 /* If the channel maps of the sink and this stream differ, we need
495 * to adjust the volume *before* we resample. Otherwise we can do
496 * it after and leave it for the sink code */
498 do_volume_adj_here
= !pa_channel_map_equal(&i
->channel_map
, &i
->sink
->channel_map
);
499 volume_is_norm
= pa_cvolume_is_norm(&i
->thread_info
.volume
) && !i
->thread_info
.muted
;
501 while (!pa_memblockq_is_readable(i
->thread_info
.render_memblockq
)) {
504 /* There's nothing in our render queue. We need to fill it up
505 * with data from the implementor. */
507 if (i
->pop(i
, ilength
, &tchunk
) < 0) {
508 pa_atomic_store(&i
->thread_info
.drained
, 1);
510 /* OK, we got no data from the implementor, so let's just skip ahead */
511 pa_memblockq_seek(i
->thread_info
.render_memblockq
, slength
, PA_SEEK_RELATIVE_ON_READ
);
515 pa_atomic_store(&i
->thread_info
.drained
, 0);
517 pa_assert(tchunk
.length
> 0);
518 pa_assert(tchunk
.memblock
);
520 if (tchunk
.length
> block_size_max_sink_input
)
521 tchunk
.length
= block_size_max_sink_input
;
523 /* It might be necessary to adjust the volume here */
524 if (do_volume_adj_here
&& !volume_is_norm
) {
525 pa_memchunk_make_writable(&tchunk
, 0);
527 if (i
->thread_info
.muted
)
528 pa_silence_memchunk(&tchunk
, &i
->thread_info
.sample_spec
);
530 pa_volume_memchunk(&tchunk
, &i
->thread_info
.sample_spec
, &i
->thread_info
.volume
);
533 if (!i
->thread_info
.resampler
)
534 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &tchunk
);
537 pa_resampler_run(i
->thread_info
.resampler
, &tchunk
, &rchunk
);
539 if (rchunk
.memblock
) {
540 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &rchunk
);
541 pa_memblock_unref(rchunk
.memblock
);
545 pa_memblock_unref(tchunk
.memblock
);
548 pa_assert_se(pa_memblockq_peek(i
->thread_info
.render_memblockq
, chunk
) >= 0);
550 pa_assert(chunk
->length
> 0);
551 pa_assert(chunk
->memblock
);
553 if (chunk
->length
> block_size_max_sink
)
554 chunk
->length
= block_size_max_sink
;
556 /* Let's see if we had to apply the volume adjustment ourselves,
557 * or if this can be done by the sink for us */
559 if (do_volume_adj_here
)
560 /* We had different channel maps, so we already did the adjustment */
561 pa_cvolume_reset(volume
, i
->sink
->sample_spec
.channels
);
562 else if (i
->thread_info
.muted
)
563 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
564 pa_cvolume_mute(volume
, i
->sink
->sample_spec
.channels
);
566 *volume
= i
->thread_info
.volume
;
568 pa_atomic_store(&i
->thread_info
.render_memblockq_is_empty
, pa_memblockq_is_empty(i
->thread_info
.render_memblockq
));
573 /* Called from thread context */
574 void pa_sink_input_drop(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
576 pa_sink_input_assert_ref(i
);
578 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
579 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
580 pa_assert(nbytes
> 0);
582 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
585 /* If there's still some rewrite request the handle, but the sink
586 didn't do this for us, we do it here. However, since the sink
587 apparently doesn't support rewinding, we pass 0 here. This still
588 allows rewinding through the render buffer. */
589 if (i
->thread_info
.rewrite_nbytes
> 0)
590 pa_sink_input_rewind(i
, 0);
592 pa_memblockq_drop(i
->thread_info
.render_memblockq
, nbytes
);
594 pa_atomic_store(&i
->thread_info
.render_memblockq_is_empty
, pa_memblockq_is_empty(i
->thread_info
.render_memblockq
));
597 /* Called from thread context */
598 void pa_sink_input_rewind(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
599 pa_sink_input_assert_ref(i
);
601 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
602 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
604 pa_log_debug("rewind(%u, %u)", nbytes
, i
->thread_info
.rewrite_nbytes
);
606 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
609 if (i
->thread_info
.ignore_rewind
) {
610 i
->thread_info
.rewrite_nbytes
= 0;
611 i
->thread_info
.ignore_rewind
= FALSE
;
616 pa_log_debug("Have to rewind %u bytes.", nbytes
);
618 if (i
->thread_info
.rewrite_nbytes
> 0) {
621 /* Calculate how much make sense to rewrite at most */
622 if ((max_rewrite
= nbytes
+ pa_memblockq_get_length(i
->thread_info
.render_memblockq
)) > 0) {
625 /* Transform into local domain */
626 if (i
->thread_info
.resampler
)
627 max_rewrite
= pa_resampler_request(i
->thread_info
.resampler
, max_rewrite
);
629 /* Calculate how much of the rewinded data should actually be rewritten */
630 amount
= PA_MIN(max_rewrite
, i
->thread_info
.rewrite_nbytes
);
632 /* Convert back to to sink domain */
633 r
= i
->thread_info
.resampler
? pa_resampler_result(i
->thread_info
.resampler
, amount
) : amount
;
635 /* Ok, now update the write pointer */
636 pa_memblockq_seek(i
->thread_info
.render_memblockq
, -r
, PA_SEEK_RELATIVE
);
638 /* Tell the implementor */
640 i
->rewind(i
, amount
);
642 /* And reset the resampler */
643 if (i
->thread_info
.resampler
)
644 pa_resampler_reset(i
->thread_info
.resampler
);
648 i
->thread_info
.rewrite_nbytes
= 0;
652 pa_memblockq_rewind(i
->thread_info
.render_memblockq
, nbytes
);
655 /* Called from thread context */
656 void pa_sink_input_set_max_rewind(pa_sink_input
*i
, size_t nbytes
/* in the sink's sample spec */) {
657 pa_sink_input_assert_ref(i
);
659 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
660 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
662 pa_memblockq_set_maxrewind(i
->thread_info
.render_memblockq
, nbytes
);
664 if (i
->set_max_rewind
)
665 i
->set_max_rewind(i
, i
->thread_info
.resampler
? pa_resampler_request(i
->thread_info
.resampler
, nbytes
) : nbytes
);
668 void pa_sink_input_set_requested_latency(pa_sink_input
*i
, pa_usec_t usec
) {
669 pa_sink_input_assert_ref(i
);
670 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
672 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
, NULL
, (int64_t) usec
, NULL
, NULL
);
675 void pa_sink_input_set_volume(pa_sink_input
*i
, const pa_cvolume
*volume
) {
676 pa_sink_input_assert_ref(i
);
677 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
679 if (pa_cvolume_equal(&i
->volume
, volume
))
684 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_VOLUME
, pa_xnewdup(struct pa_cvolume
, volume
, 1), 0, NULL
, pa_xfree
);
685 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
688 const pa_cvolume
*pa_sink_input_get_volume(pa_sink_input
*i
) {
689 pa_sink_input_assert_ref(i
);
690 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
695 void pa_sink_input_set_mute(pa_sink_input
*i
, pa_bool_t mute
) {
697 pa_sink_input_assert_ref(i
);
698 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
700 if (!i
->muted
== !mute
)
705 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_MUTE
, PA_UINT_TO_PTR(mute
), 0, NULL
, NULL
);
706 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
709 int pa_sink_input_get_mute(pa_sink_input
*i
) {
710 pa_sink_input_assert_ref(i
);
711 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
716 void pa_sink_input_cork(pa_sink_input
*i
, pa_bool_t b
) {
717 pa_sink_input_assert_ref(i
);
718 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
720 sink_input_set_state(i
, b
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
);
723 int pa_sink_input_set_rate(pa_sink_input
*i
, uint32_t rate
) {
724 pa_sink_input_assert_ref(i
);
725 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
726 pa_return_val_if_fail(i
->thread_info
.resampler
, -1);
728 if (i
->sample_spec
.rate
== rate
)
731 i
->sample_spec
.rate
= rate
;
733 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
735 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
739 void pa_sink_input_set_name(pa_sink_input
*i
, const char *name
) {
741 pa_sink_input_assert_ref(i
);
743 if (!name
&& !pa_proplist_contains(i
->proplist
, PA_PROP_MEDIA_NAME
))
746 old
= pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
);
748 if (old
&& name
&& !strcmp(old
, name
))
752 pa_proplist_sets(i
->proplist
, PA_PROP_MEDIA_NAME
, name
);
754 pa_proplist_unset(i
->proplist
, PA_PROP_MEDIA_NAME
);
756 if (PA_SINK_INPUT_LINKED(i
->state
)) {
757 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED
], i
);
758 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
762 pa_resample_method_t
pa_sink_input_get_resample_method(pa_sink_input
*i
) {
763 pa_sink_input_assert_ref(i
);
765 return i
->resample_method
;
768 int pa_sink_input_move_to(pa_sink_input
*i
, pa_sink
*dest
, int immediately
) {
769 pa_resampler
*new_resampler
;
771 pa_usec_t silence_usec
= 0;
772 pa_sink_input_move_info info
;
773 pa_sink_input_move_hook_data hook_data
;
775 pa_sink_input_assert_ref(i
);
776 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
777 pa_sink_assert_ref(dest
);
784 if (i
->flags
& PA_SINK_INPUT_DONT_MOVE
)
787 if (i
->sync_next
|| i
->sync_prev
) {
788 pa_log_warn("Moving synchronised streams not supported.");
792 if (pa_idxset_size(dest
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
793 pa_log_warn("Failed to move sink input: too many inputs per sink.");
797 if (i
->thread_info
.resampler
&&
798 pa_sample_spec_equal(&origin
->sample_spec
, &dest
->sample_spec
) &&
799 pa_channel_map_equal(&origin
->channel_map
, &dest
->channel_map
))
801 /* Try to reuse the old resampler if possible */
802 new_resampler
= i
->thread_info
.resampler
;
804 else if ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
805 !pa_sample_spec_equal(&i
->sample_spec
, &dest
->sample_spec
) ||
806 !pa_channel_map_equal(&i
->channel_map
, &dest
->channel_map
)) {
808 /* Okey, we need a new resampler for the new sink */
810 if (!(new_resampler
= pa_resampler_new(
812 &i
->sample_spec
, &i
->channel_map
,
813 &dest
->sample_spec
, &dest
->channel_map
,
815 ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
816 ((i
->flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
817 (i
->core
->disable_remixing
|| (i
->flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
818 pa_log_warn("Unsupported resampling operation.");
822 new_resampler
= NULL
;
824 hook_data
.sink_input
= i
;
825 hook_data
.destination
= dest
;
826 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE
], &hook_data
);
828 memset(&info
, 0, sizeof(info
));
832 pa_usec_t old_latency
, new_latency
;
834 /* Let's do a little bit of Voodoo for compensating latency
835 * differences. We assume that the accuracy for our
836 * estimations is still good enough, even though we do these
837 * operations non-atomic. */
839 old_latency
= pa_sink_get_latency(origin
);
840 new_latency
= pa_sink_get_latency(dest
);
842 /* The already resampled data should go to the old sink */
844 if (old_latency
>= new_latency
) {
846 /* The latency of the old sink is larger than the latency
847 * of the new sink. Therefore to compensate for the
848 * difference we to play silence on the new one for a
851 silence_usec
= old_latency
- new_latency
;
855 /* The latency of new sink is larger than the latency of
856 * the old sink. Therefore we have to precompute a little
857 * and make sure that this is still played on the old
858 * sink, until we can play the first sample on the new
861 info
.buffer_bytes
= pa_usec_to_bytes(new_latency
- old_latency
, &origin
->sample_spec
);
864 /* Okey, let's move it */
866 if (info
.buffer_bytes
> 0) {
869 p
= pa_proplist_new();
870 pa_proplist_sets(p
, PA_PROP_MEDIA_NAME
, "Ghost For Moved Stream");
871 pa_proplist_sets(p
, PA_PROP_MEDIA_ROLE
, "routing");
873 info
.ghost_sink_input
= pa_memblockq_sink_input_new(
875 &origin
->sample_spec
,
876 &origin
->channel_map
,
883 if (info
.ghost_sink_input
) {
884 info
.ghost_sink_input
->thread_info
.state
= info
.ghost_sink_input
->state
= PA_SINK_INPUT_RUNNING
;
885 info
.ghost_sink_input
->thread_info
.volume
= info
.ghost_sink_input
->volume
;
886 info
.ghost_sink_input
->thread_info
.muted
= info
.ghost_sink_input
->muted
;
888 info
.buffer
= pa_memblockq_new(0, MOVE_BUFFER_LENGTH
, 0, pa_frame_size(&origin
->sample_spec
), 0, 0, 0, NULL
);
893 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_REMOVE_INPUT_AND_BUFFER
, &info
, 0, NULL
);
895 if (info
.ghost_sink_input
) {
896 /* Basically, do what pa_sink_input_put() does ...*/
898 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_NEW
, info
.ghost_sink_input
->index
);
899 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PUT
], info
.ghost_sink_input
);
900 pa_sink_input_unref(info
.ghost_sink_input
);
903 pa_idxset_remove_by_data(origin
->inputs
, i
, NULL
);
904 pa_idxset_put(dest
->inputs
, i
, NULL
);
907 if (pa_sink_input_get_state(i
) == PA_SINK_INPUT_CORKED
) {
908 pa_assert_se(origin
->n_corked
-- >= 1);
912 /* Replace resampler */
913 if (new_resampler
!= i
->thread_info
.resampler
) {
914 pa_memblock
*silence
;
916 if (i
->thread_info
.resampler
)
917 pa_resampler_free(i
->thread_info
.resampler
);
918 i
->thread_info
.resampler
= new_resampler
;
920 /* if the resampler changed, the silence memblock is
921 * probably invalid now, too */
923 silence
= pa_silence_memblock_new(i
->sink
->core
->mempool
, &dest
->sample_spec
, new_resampler
? pa_resampler_max_block_size(new_resampler
) : 0);
924 pa_memblockq_set_silence(i
->thread_info
.render_memblockq
, silence
);
925 pa_memblock_unref(silence
);
929 pa_memblockq_flush(i
->thread_info
.render_memblockq
);
931 /* Calculate the new sleeping time */
933 pa_memblockq_seek(i
->thread_info
.render_memblockq
, pa_usec_to_bytes(silence_usec
, &dest
->sample_spec
), PA_SEEK_RELATIVE
);
935 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_ADD_INPUT
, i
, 0, NULL
);
937 pa_sink_update_status(origin
);
938 pa_sink_update_status(dest
);
943 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE_POST
], i
);
945 pa_log_debug("Successfully moved sink input %i from %s to %s.", i
->index
, origin
->name
, dest
->name
);
947 /* Notify everyone */
948 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
953 /* Called from thread context */
954 int pa_sink_input_process_msg(pa_msgobject
*o
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
955 pa_sink_input
*i
= PA_SINK_INPUT(o
);
957 pa_sink_input_assert_ref(i
);
958 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
961 case PA_SINK_INPUT_MESSAGE_SET_VOLUME
:
962 i
->thread_info
.volume
= *((pa_cvolume
*) userdata
);
963 pa_sink_input_request_rewrite(i
, 0);
966 case PA_SINK_INPUT_MESSAGE_SET_MUTE
:
967 i
->thread_info
.muted
= PA_PTR_TO_UINT(userdata
);
968 pa_sink_input_request_rewrite(i
, 0);
971 case PA_SINK_INPUT_MESSAGE_GET_LATENCY
: {
972 pa_usec_t
*r
= userdata
;
974 *r
+= pa_bytes_to_usec(pa_memblockq_get_length(i
->thread_info
.render_memblockq
), &i
->sink
->sample_spec
);
979 case PA_SINK_INPUT_MESSAGE_SET_RATE
:
981 i
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
982 pa_resampler_set_input_rate(i
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
986 case PA_SINK_INPUT_MESSAGE_SET_STATE
: {
987 pa_sink_input
*ssync
;
989 if ((PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_DRAINED
|| PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_RUNNING
) &&
990 (i
->thread_info
.state
!= PA_SINK_INPUT_DRAINED
) && (i
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
991 pa_atomic_store(&i
->thread_info
.drained
, 1);
993 i
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
995 for (ssync
= i
->thread_info
.sync_prev
; ssync
; ssync
= ssync
->thread_info
.sync_prev
) {
996 if ((PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_DRAINED
|| PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_RUNNING
) &&
997 (ssync
->thread_info
.state
!= PA_SINK_INPUT_DRAINED
) && (ssync
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
998 pa_atomic_store(&ssync
->thread_info
.drained
, 1);
999 ssync
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
1002 for (ssync
= i
->thread_info
.sync_next
; ssync
; ssync
= ssync
->thread_info
.sync_next
) {
1003 if ((PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_DRAINED
|| PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_RUNNING
) &&
1004 (ssync
->thread_info
.state
!= PA_SINK_INPUT_DRAINED
) && (ssync
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
1005 pa_atomic_store(&ssync
->thread_info
.drained
, 1);
1006 ssync
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
1012 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
:
1014 i
->thread_info
.requested_sink_latency
= (pa_usec_t
) offset
;
1015 pa_sink_invalidate_requested_latency(i
->sink
);
1023 pa_sink_input_state_t
pa_sink_input_get_state(pa_sink_input
*i
) {
1024 pa_sink_input_assert_ref(i
);
1026 if (i
->state
== PA_SINK_INPUT_RUNNING
|| i
->state
== PA_SINK_INPUT_DRAINED
)
1027 return pa_atomic_load(&i
->thread_info
.drained
) ? PA_SINK_INPUT_DRAINED
: PA_SINK_INPUT_RUNNING
;
1032 pa_bool_t
pa_sink_input_safe_to_remove(pa_sink_input
*i
) {
1033 pa_sink_input_assert_ref(i
);
1035 if (i
->state
== PA_SINK_INPUT_RUNNING
|| i
->state
== PA_SINK_INPUT_DRAINED
|| i
->state
== PA_SINK_INPUT_CORKED
)
1036 return pa_atomic_load(&i
->thread_info
.render_memblockq_is_empty
);
1041 void pa_sink_input_request_rewrite(pa_sink_input
*i
, size_t nbytes
/* in our sample spec */) {
1044 pa_sink_input_assert_ref(i
);
1046 lbq
= pa_memblockq_get_length(i
->thread_info
.render_memblockq
);
1050 i
->thread_info
.resampler
?
1051 pa_resampler_request(i
->thread_info
.resampler
, i
->sink
->thread_info
.max_rewind
+ lbq
) :
1052 (i
->sink
->thread_info
.max_rewind
+ lbq
);
1055 i
->thread_info
.rewrite_nbytes
= PA_MAX(nbytes
, i
->thread_info
.rewrite_nbytes
);
1057 /* Transform to sink domain */
1058 l
= i
->thread_info
.resampler
? pa_resampler_result(i
->thread_info
.resampler
, nbytes
) : nbytes
;
1064 pa_sink_request_rewind(i
->sink
, l
- lbq
);