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>
41 #include <pulsecore/core-util.h>
43 #include "sink-input.h"
45 #define MEMBLOCKQ_MAXLENGTH (16*1024*1024)
46 #define CONVERT_BUFFER_LENGTH (PA_PAGE_SIZE)
47 #define MOVE_BUFFER_LENGTH (PA_PAGE_SIZE*256)
49 static PA_DEFINE_CHECK_TYPE(pa_sink_input
, pa_msgobject
);
51 static void sink_input_free(pa_object
*o
);
53 pa_sink_input_new_data
* pa_sink_input_new_data_init(pa_sink_input_new_data
*data
) {
56 memset(data
, 0, sizeof(*data
));
57 data
->resample_method
= PA_RESAMPLER_INVALID
;
58 data
->proplist
= pa_proplist_new();
63 void pa_sink_input_new_data_set_sample_spec(pa_sink_input_new_data
*data
, const pa_sample_spec
*spec
) {
66 if ((data
->sample_spec_is_set
= !!spec
))
67 data
->sample_spec
= *spec
;
70 void pa_sink_input_new_data_set_channel_map(pa_sink_input_new_data
*data
, const pa_channel_map
*map
) {
73 if ((data
->channel_map_is_set
= !!map
))
74 data
->channel_map
= *map
;
77 void pa_sink_input_new_data_set_volume(pa_sink_input_new_data
*data
, const pa_cvolume
*volume
) {
80 if ((data
->volume_is_set
= !!volume
))
81 data
->volume
= *volume
;
84 void pa_sink_input_new_data_set_muted(pa_sink_input_new_data
*data
, pa_bool_t mute
) {
87 data
->muted_is_set
= TRUE
;
91 void pa_sink_input_new_data_done(pa_sink_input_new_data
*data
) {
94 pa_proplist_free(data
->proplist
);
97 pa_sink_input
* pa_sink_input_new(
99 pa_sink_input_new_data
*data
,
100 pa_sink_input_flags_t flags
) {
103 pa_resampler
*resampler
= NULL
;
104 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
105 pa_memblock
*silence
;
110 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_NEW
], data
) < 0)
113 pa_return_null_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
));
116 data
->sink
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SINK
, 1);
118 pa_return_null_if_fail(data
->sink
);
119 pa_return_null_if_fail(pa_sink_get_state(data
->sink
) != PA_SINK_UNLINKED
);
120 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
));
122 if (!data
->sample_spec_is_set
)
123 data
->sample_spec
= data
->sink
->sample_spec
;
125 pa_return_null_if_fail(pa_sample_spec_valid(&data
->sample_spec
));
127 if (!data
->channel_map_is_set
) {
128 if (data
->sink
->channel_map
.channels
== data
->sample_spec
.channels
)
129 data
->channel_map
= data
->sink
->channel_map
;
131 pa_return_null_if_fail(pa_channel_map_init_auto(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
));
134 pa_return_null_if_fail(pa_channel_map_valid(&data
->channel_map
));
135 pa_return_null_if_fail(data
->channel_map
.channels
== data
->sample_spec
.channels
);
137 if (!data
->volume_is_set
)
138 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
140 pa_return_null_if_fail(pa_cvolume_valid(&data
->volume
));
141 pa_return_null_if_fail(data
->volume
.channels
== data
->sample_spec
.channels
);
143 if (!data
->muted_is_set
)
146 if (flags
& PA_SINK_INPUT_FIX_FORMAT
)
147 data
->sample_spec
.format
= data
->sink
->sample_spec
.format
;
149 if (flags
& PA_SINK_INPUT_FIX_RATE
)
150 data
->sample_spec
.rate
= data
->sink
->sample_spec
.rate
;
152 if (flags
& PA_SINK_INPUT_FIX_CHANNELS
) {
153 data
->sample_spec
.channels
= data
->sink
->sample_spec
.channels
;
154 data
->channel_map
= data
->sink
->channel_map
;
157 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
158 pa_assert(pa_channel_map_valid(&data
->channel_map
));
160 /* Due to the fixing of the sample spec the volume might not match anymore */
161 if (data
->volume
.channels
!= data
->sample_spec
.channels
)
162 pa_cvolume_set(&data
->volume
, data
->sample_spec
.channels
, pa_cvolume_avg(&data
->volume
));
164 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
165 data
->resample_method
= core
->resample_method
;
167 pa_return_null_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
);
169 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_FIXATE
], data
) < 0)
172 if (pa_idxset_size(data
->sink
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
173 pa_log_warn("Failed to create sink input: too many inputs per sink.");
177 if ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
178 !pa_sample_spec_equal(&data
->sample_spec
, &data
->sink
->sample_spec
) ||
179 !pa_channel_map_equal(&data
->channel_map
, &data
->sink
->channel_map
)) {
181 if (!(resampler
= pa_resampler_new(
183 &data
->sample_spec
, &data
->channel_map
,
184 &data
->sink
->sample_spec
, &data
->sink
->channel_map
,
185 data
->resample_method
,
186 ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
187 ((flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
188 (core
->disable_remixing
|| (flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
189 pa_log_warn("Unsupported resampling operation.");
193 data
->resample_method
= pa_resampler_get_method(resampler
);
196 i
= pa_msgobject_new(pa_sink_input
);
197 i
->parent
.parent
.free
= sink_input_free
;
198 i
->parent
.process_msg
= pa_sink_input_process_msg
;
201 i
->state
= PA_SINK_INPUT_INIT
;
203 i
->proplist
= pa_proplist_copy(data
->proplist
);
204 i
->driver
= pa_xstrdup(data
->driver
);
205 i
->module
= data
->module
;
206 i
->sink
= data
->sink
;
207 i
->client
= data
->client
;
209 i
->resample_method
= data
->resample_method
;
210 i
->sample_spec
= data
->sample_spec
;
211 i
->channel_map
= data
->channel_map
;
213 i
->volume
= data
->volume
;
214 i
->muted
= data
->muted
;
216 if (data
->sync_base
) {
217 i
->sync_next
= data
->sync_base
->sync_next
;
218 i
->sync_prev
= data
->sync_base
;
220 if (data
->sync_base
->sync_next
)
221 data
->sync_base
->sync_next
->sync_prev
= i
;
222 data
->sync_base
->sync_next
= i
;
224 i
->sync_next
= i
->sync_prev
= NULL
;
228 i
->set_max_rewind
= NULL
;
230 i
->get_latency
= NULL
;
237 i
->thread_info
.state
= i
->state
;
238 i
->thread_info
.attached
= FALSE
;
239 pa_atomic_store(&i
->thread_info
.drained
, 1);
240 pa_atomic_store(&i
->thread_info
.render_memblockq_is_empty
, 0);
241 i
->thread_info
.sample_spec
= i
->sample_spec
;
242 i
->thread_info
.resampler
= resampler
;
243 i
->thread_info
.volume
= i
->volume
;
244 i
->thread_info
.muted
= i
->muted
;
245 i
->thread_info
.requested_sink_latency
= 0;
246 i
->thread_info
.rewrite_nbytes
= 0;
247 i
->thread_info
.ignore_rewind
= FALSE
;
249 silence
= pa_silence_memblock_new(i
->sink
->core
->mempool
, &i
->sink
->sample_spec
, 0);
251 i
->thread_info
.render_memblockq
= pa_memblockq_new(
255 pa_frame_size(&i
->sink
->sample_spec
),
261 pa_memblock_unref(silence
);
263 pa_assert_se(pa_idxset_put(core
->sink_inputs
, pa_sink_input_ref(i
), &i
->index
) == 0);
264 pa_assert_se(pa_idxset_put(i
->sink
->inputs
, i
, NULL
) == 0);
266 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
268 pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)),
270 pa_sample_spec_snprint(st
, sizeof(st
), &i
->sample_spec
),
271 pa_channel_map_snprint(cm
, sizeof(cm
), &i
->channel_map
));
273 /* Don't forget to call pa_sink_input_put! */
278 static void update_n_corked(pa_sink_input
*i
, pa_sink_input_state_t state
) {
281 if (i
->state
== PA_SINK_INPUT_CORKED
&& state
!= PA_SINK_INPUT_CORKED
)
282 pa_assert_se(i
->sink
->n_corked
-- >= 1);
283 else if (i
->state
!= PA_SINK_INPUT_CORKED
&& state
== PA_SINK_INPUT_CORKED
)
286 pa_sink_update_status(i
->sink
);
289 static int sink_input_set_state(pa_sink_input
*i
, pa_sink_input_state_t state
) {
290 pa_sink_input
*ssync
;
293 if (state
== PA_SINK_INPUT_DRAINED
)
294 state
= PA_SINK_INPUT_RUNNING
;
296 if (i
->state
== state
)
299 if (pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
) < 0)
302 update_n_corked(i
, state
);
305 for (ssync
= i
->sync_prev
; ssync
; ssync
= ssync
->sync_prev
) {
306 update_n_corked(ssync
, state
);
307 ssync
->state
= state
;
309 for (ssync
= i
->sync_next
; ssync
; ssync
= ssync
->sync_next
) {
310 update_n_corked(ssync
, state
);
311 ssync
->state
= state
;
314 if (state
!= PA_SINK_INPUT_UNLINKED
)
315 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED
], i
);
320 void pa_sink_input_unlink(pa_sink_input
*i
) {
324 /* See pa_sink_unlink() for a couple of comments how this function
327 pa_sink_input_ref(i
);
329 linked
= PA_SINK_INPUT_LINKED(i
->state
);
332 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK
], i
);
335 i
->sync_prev
->sync_next
= i
->sync_next
;
337 i
->sync_next
->sync_prev
= i
->sync_prev
;
339 i
->sync_prev
= i
->sync_next
= NULL
;
341 pa_idxset_remove_by_data(i
->sink
->core
->sink_inputs
, i
, NULL
);
342 if (pa_idxset_remove_by_data(i
->sink
->inputs
, i
, NULL
))
343 pa_sink_input_unref(i
);
346 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_REMOVE_INPUT
, i
, 0, NULL
);
347 sink_input_set_state(i
, PA_SINK_INPUT_UNLINKED
);
348 pa_sink_update_status(i
->sink
);
350 i
->state
= PA_SINK_INPUT_UNLINKED
;
354 i
->set_max_rewind
= NULL
;
356 i
->get_latency
= NULL
;
363 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, i
->index
);
364 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST
], i
);
368 pa_sink_input_unref(i
);
371 static void sink_input_free(pa_object
*o
) {
372 pa_sink_input
* i
= PA_SINK_INPUT(o
);
375 pa_assert(pa_sink_input_refcnt(i
) == 0);
377 if (PA_SINK_INPUT_LINKED(i
->state
))
378 pa_sink_input_unlink(i
);
380 pa_log_info("Freeing input %u \"%s\"", i
->index
, pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)));
382 pa_assert(!i
->thread_info
.attached
);
384 if (i
->thread_info
.render_memblockq
)
385 pa_memblockq_free(i
->thread_info
.render_memblockq
);
387 if (i
->thread_info
.resampler
)
388 pa_resampler_free(i
->thread_info
.resampler
);
391 pa_proplist_free(i
->proplist
);
397 void pa_sink_input_put(pa_sink_input
*i
) {
398 pa_sink_input_assert_ref(i
);
400 pa_assert(i
->state
== PA_SINK_INPUT_INIT
);
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 while (tchunk
.length
> 0) {
525 if (wchunk
.length
> block_size_max_sink_input
)
526 wchunk
.length
= block_size_max_sink_input
;
528 /* It might be necessary to adjust the volume here */
529 if (do_volume_adj_here
&& !volume_is_norm
) {
530 pa_memchunk_make_writable(&wchunk
, 0);
532 if (i
->thread_info
.muted
)
533 pa_silence_memchunk(&wchunk
, &i
->thread_info
.sample_spec
);
535 pa_volume_memchunk(&wchunk
, &i
->thread_info
.sample_spec
, &i
->thread_info
.volume
);
538 if (!i
->thread_info
.resampler
)
539 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &wchunk
);
542 pa_resampler_run(i
->thread_info
.resampler
, &wchunk
, &rchunk
);
544 if (rchunk
.memblock
) {
545 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &rchunk
);
546 pa_memblock_unref(rchunk
.memblock
);
550 tchunk
.index
+= wchunk
.length
;
551 tchunk
.length
-= wchunk
.length
;
554 pa_memblock_unref(tchunk
.memblock
);
557 pa_assert_se(pa_memblockq_peek(i
->thread_info
.render_memblockq
, chunk
) >= 0);
559 pa_assert(chunk
->length
> 0);
560 pa_assert(chunk
->memblock
);
562 if (chunk
->length
> block_size_max_sink
)
563 chunk
->length
= block_size_max_sink
;
565 /* Let's see if we had to apply the volume adjustment ourselves,
566 * or if this can be done by the sink for us */
568 if (do_volume_adj_here
)
569 /* We had different channel maps, so we already did the adjustment */
570 pa_cvolume_reset(volume
, i
->sink
->sample_spec
.channels
);
571 else if (i
->thread_info
.muted
)
572 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
573 pa_cvolume_mute(volume
, i
->sink
->sample_spec
.channels
);
575 *volume
= i
->thread_info
.volume
;
577 pa_atomic_store(&i
->thread_info
.render_memblockq_is_empty
, pa_memblockq_is_empty(i
->thread_info
.render_memblockq
));
582 /* Called from thread context */
583 void pa_sink_input_drop(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
585 pa_sink_input_assert_ref(i
);
587 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
588 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
589 pa_assert(nbytes
> 0);
591 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
594 /* If there's still some rewrite request the handle, but the sink
595 didn't do this for us, we do it here. However, since the sink
596 apparently doesn't support rewinding, we pass 0 here. This still
597 allows rewinding through the render buffer. */
598 if (i
->thread_info
.rewrite_nbytes
> 0)
599 pa_sink_input_rewind(i
, 0);
601 pa_memblockq_drop(i
->thread_info
.render_memblockq
, nbytes
);
603 pa_atomic_store(&i
->thread_info
.render_memblockq_is_empty
, pa_memblockq_is_empty(i
->thread_info
.render_memblockq
));
606 /* Called from thread context */
607 void pa_sink_input_rewind(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
608 pa_sink_input_assert_ref(i
);
610 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
611 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
613 pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes
, (unsigned long) i
->thread_info
.rewrite_nbytes
);
615 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
618 if (i
->thread_info
.ignore_rewind
) {
619 i
->thread_info
.rewrite_nbytes
= 0;
620 i
->thread_info
.ignore_rewind
= FALSE
;
625 pa_log_debug("Have to rewind %lu bytes.", (unsigned long) nbytes
);
627 if (i
->thread_info
.rewrite_nbytes
> 0) {
630 /* Calculate how much make sense to rewrite at most */
631 if ((max_rewrite
= nbytes
+ pa_memblockq_get_length(i
->thread_info
.render_memblockq
)) > 0) {
634 /* Transform into local domain */
635 if (i
->thread_info
.resampler
)
636 max_rewrite
= pa_resampler_request(i
->thread_info
.resampler
, max_rewrite
);
638 /* Calculate how much of the rewinded data should actually be rewritten */
639 amount
= PA_MIN(max_rewrite
, i
->thread_info
.rewrite_nbytes
);
641 /* Convert back to to sink domain */
642 r
= i
->thread_info
.resampler
? pa_resampler_result(i
->thread_info
.resampler
, amount
) : amount
;
644 /* Ok, now update the write pointer */
645 pa_memblockq_seek(i
->thread_info
.render_memblockq
, -r
, PA_SEEK_RELATIVE
);
647 /* Tell the implementor */
649 i
->rewind(i
, amount
);
651 /* And reset the resampler */
652 if (i
->thread_info
.resampler
)
653 pa_resampler_reset(i
->thread_info
.resampler
);
657 i
->thread_info
.rewrite_nbytes
= 0;
661 pa_memblockq_rewind(i
->thread_info
.render_memblockq
, nbytes
);
664 /* Called from thread context */
665 void pa_sink_input_set_max_rewind(pa_sink_input
*i
, size_t nbytes
/* in the sink's sample spec */) {
666 pa_sink_input_assert_ref(i
);
668 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
669 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
671 pa_memblockq_set_maxrewind(i
->thread_info
.render_memblockq
, nbytes
);
673 if (i
->set_max_rewind
)
674 i
->set_max_rewind(i
, i
->thread_info
.resampler
? pa_resampler_request(i
->thread_info
.resampler
, nbytes
) : nbytes
);
677 pa_usec_t
pa_sink_input_set_requested_latency(pa_sink_input
*i
, pa_usec_t usec
) {
678 pa_sink_input_assert_ref(i
);
682 if (i
->sink
->max_latency
> 0 && usec
> i
->sink
->max_latency
)
683 usec
= i
->sink
->max_latency
;
685 if (i
->sink
->min_latency
> 0 && usec
< i
->sink
->min_latency
)
686 usec
= i
->sink
->min_latency
;
689 if (PA_SINK_INPUT_LINKED(i
->state
))
690 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
, NULL
, (int64_t) usec
, NULL
, NULL
);
692 i
->thread_info
.requested_sink_latency
= usec
;
693 i
->sink
->thread_info
.requested_latency_valid
= FALSE
;
699 void pa_sink_input_set_volume(pa_sink_input
*i
, const pa_cvolume
*volume
) {
700 pa_sink_input_assert_ref(i
);
701 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
703 if (pa_cvolume_equal(&i
->volume
, volume
))
708 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
);
709 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
712 const pa_cvolume
*pa_sink_input_get_volume(pa_sink_input
*i
) {
713 pa_sink_input_assert_ref(i
);
714 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
719 void pa_sink_input_set_mute(pa_sink_input
*i
, pa_bool_t mute
) {
721 pa_sink_input_assert_ref(i
);
722 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
724 if (!i
->muted
== !mute
)
729 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_MUTE
, PA_UINT_TO_PTR(mute
), 0, NULL
, NULL
);
730 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
733 int pa_sink_input_get_mute(pa_sink_input
*i
) {
734 pa_sink_input_assert_ref(i
);
735 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
740 void pa_sink_input_cork(pa_sink_input
*i
, pa_bool_t b
) {
741 pa_sink_input_assert_ref(i
);
742 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
744 sink_input_set_state(i
, b
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
);
747 int pa_sink_input_set_rate(pa_sink_input
*i
, uint32_t rate
) {
748 pa_sink_input_assert_ref(i
);
749 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
750 pa_return_val_if_fail(i
->thread_info
.resampler
, -1);
752 if (i
->sample_spec
.rate
== rate
)
755 i
->sample_spec
.rate
= rate
;
757 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
759 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
763 void pa_sink_input_set_name(pa_sink_input
*i
, const char *name
) {
765 pa_sink_input_assert_ref(i
);
767 if (!name
&& !pa_proplist_contains(i
->proplist
, PA_PROP_MEDIA_NAME
))
770 old
= pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
);
772 if (old
&& name
&& !strcmp(old
, name
))
776 pa_proplist_sets(i
->proplist
, PA_PROP_MEDIA_NAME
, name
);
778 pa_proplist_unset(i
->proplist
, PA_PROP_MEDIA_NAME
);
780 if (PA_SINK_INPUT_LINKED(i
->state
)) {
781 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED
], i
);
782 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
786 pa_resample_method_t
pa_sink_input_get_resample_method(pa_sink_input
*i
) {
787 pa_sink_input_assert_ref(i
);
789 return i
->resample_method
;
792 int pa_sink_input_move_to(pa_sink_input
*i
, pa_sink
*dest
, int immediately
) {
793 pa_resampler
*new_resampler
;
795 pa_usec_t silence_usec
= 0;
796 pa_sink_input_move_info info
;
797 pa_sink_input_move_hook_data hook_data
;
799 pa_sink_input_assert_ref(i
);
800 pa_assert(PA_SINK_INPUT_LINKED(i
->state
));
801 pa_sink_assert_ref(dest
);
808 if (i
->flags
& PA_SINK_INPUT_DONT_MOVE
)
811 if (i
->sync_next
|| i
->sync_prev
) {
812 pa_log_warn("Moving synchronised streams not supported.");
816 if (pa_idxset_size(dest
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
817 pa_log_warn("Failed to move sink input: too many inputs per sink.");
821 if (i
->thread_info
.resampler
&&
822 pa_sample_spec_equal(&origin
->sample_spec
, &dest
->sample_spec
) &&
823 pa_channel_map_equal(&origin
->channel_map
, &dest
->channel_map
))
825 /* Try to reuse the old resampler if possible */
826 new_resampler
= i
->thread_info
.resampler
;
828 else if ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
829 !pa_sample_spec_equal(&i
->sample_spec
, &dest
->sample_spec
) ||
830 !pa_channel_map_equal(&i
->channel_map
, &dest
->channel_map
)) {
832 /* Okey, we need a new resampler for the new sink */
834 if (!(new_resampler
= pa_resampler_new(
836 &i
->sample_spec
, &i
->channel_map
,
837 &dest
->sample_spec
, &dest
->channel_map
,
839 ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
840 ((i
->flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
841 (i
->core
->disable_remixing
|| (i
->flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
842 pa_log_warn("Unsupported resampling operation.");
846 new_resampler
= NULL
;
848 hook_data
.sink_input
= i
;
849 hook_data
.destination
= dest
;
850 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE
], &hook_data
);
852 memset(&info
, 0, sizeof(info
));
856 pa_usec_t old_latency
, new_latency
;
858 /* Let's do a little bit of Voodoo for compensating latency
859 * differences. We assume that the accuracy for our
860 * estimations is still good enough, even though we do these
861 * operations non-atomic. */
863 old_latency
= pa_sink_get_latency(origin
);
864 new_latency
= pa_sink_get_latency(dest
);
866 /* The already resampled data should go to the old sink */
868 if (old_latency
>= new_latency
) {
870 /* The latency of the old sink is larger than the latency
871 * of the new sink. Therefore to compensate for the
872 * difference we to play silence on the new one for a
875 silence_usec
= old_latency
- new_latency
;
879 /* The latency of new sink is larger than the latency of
880 * the old sink. Therefore we have to precompute a little
881 * and make sure that this is still played on the old
882 * sink, until we can play the first sample on the new
885 info
.buffer_bytes
= pa_usec_to_bytes(new_latency
- old_latency
, &origin
->sample_spec
);
888 /* Okey, let's move it */
890 if (info
.buffer_bytes
> 0) {
893 p
= pa_proplist_new();
894 pa_proplist_sets(p
, PA_PROP_MEDIA_NAME
, "Ghost For Moved Stream");
895 pa_proplist_sets(p
, PA_PROP_MEDIA_ROLE
, "routing");
897 info
.ghost_sink_input
= pa_memblockq_sink_input_new(
899 &origin
->sample_spec
,
900 &origin
->channel_map
,
907 if (info
.ghost_sink_input
) {
908 info
.ghost_sink_input
->thread_info
.state
= info
.ghost_sink_input
->state
= PA_SINK_INPUT_RUNNING
;
909 info
.ghost_sink_input
->thread_info
.volume
= info
.ghost_sink_input
->volume
;
910 info
.ghost_sink_input
->thread_info
.muted
= info
.ghost_sink_input
->muted
;
912 info
.buffer
= pa_memblockq_new(0, MOVE_BUFFER_LENGTH
, 0, pa_frame_size(&origin
->sample_spec
), 0, 0, 0, NULL
);
917 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_REMOVE_INPUT_AND_BUFFER
, &info
, 0, NULL
);
919 if (info
.ghost_sink_input
) {
920 /* Basically, do what pa_sink_input_put() does ...*/
922 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_NEW
, info
.ghost_sink_input
->index
);
923 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PUT
], info
.ghost_sink_input
);
924 pa_sink_input_unref(info
.ghost_sink_input
);
927 pa_idxset_remove_by_data(origin
->inputs
, i
, NULL
);
928 pa_idxset_put(dest
->inputs
, i
, NULL
);
931 if (pa_sink_input_get_state(i
) == PA_SINK_INPUT_CORKED
) {
932 pa_assert_se(origin
->n_corked
-- >= 1);
936 /* Replace resampler */
937 if (new_resampler
!= i
->thread_info
.resampler
) {
938 pa_memblock
*silence
;
940 if (i
->thread_info
.resampler
)
941 pa_resampler_free(i
->thread_info
.resampler
);
942 i
->thread_info
.resampler
= new_resampler
;
944 /* if the resampler changed, the silence memblock is
945 * probably invalid now, too */
947 silence
= pa_silence_memblock_new(i
->sink
->core
->mempool
, &dest
->sample_spec
, new_resampler
? pa_resampler_max_block_size(new_resampler
) : 0);
948 pa_memblockq_set_silence(i
->thread_info
.render_memblockq
, silence
);
949 pa_memblock_unref(silence
);
953 pa_memblockq_flush(i
->thread_info
.render_memblockq
);
955 /* Calculate the new sleeping time */
957 pa_memblockq_seek(i
->thread_info
.render_memblockq
, pa_usec_to_bytes(silence_usec
, &dest
->sample_spec
), PA_SEEK_RELATIVE
);
959 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_ADD_INPUT
, i
, 0, NULL
);
961 pa_sink_update_status(origin
);
962 pa_sink_update_status(dest
);
967 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE_POST
], i
);
969 pa_log_debug("Successfully moved sink input %i from %s to %s.", i
->index
, origin
->name
, dest
->name
);
971 /* Notify everyone */
972 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
977 /* Called from thread context */
978 int pa_sink_input_process_msg(pa_msgobject
*o
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
979 pa_sink_input
*i
= PA_SINK_INPUT(o
);
981 pa_sink_input_assert_ref(i
);
982 pa_assert(PA_SINK_INPUT_LINKED(i
->thread_info
.state
));
985 case PA_SINK_INPUT_MESSAGE_SET_VOLUME
:
986 i
->thread_info
.volume
= *((pa_cvolume
*) userdata
);
987 pa_sink_input_request_rewrite(i
, 0);
990 case PA_SINK_INPUT_MESSAGE_SET_MUTE
:
991 i
->thread_info
.muted
= PA_PTR_TO_UINT(userdata
);
992 pa_sink_input_request_rewrite(i
, 0);
995 case PA_SINK_INPUT_MESSAGE_GET_LATENCY
: {
996 pa_usec_t
*r
= userdata
;
998 *r
+= pa_bytes_to_usec(pa_memblockq_get_length(i
->thread_info
.render_memblockq
), &i
->sink
->sample_spec
);
1003 case PA_SINK_INPUT_MESSAGE_SET_RATE
:
1005 i
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1006 pa_resampler_set_input_rate(i
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1010 case PA_SINK_INPUT_MESSAGE_SET_STATE
: {
1011 pa_sink_input
*ssync
;
1013 if ((PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_DRAINED
|| PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_RUNNING
) &&
1014 (i
->thread_info
.state
!= PA_SINK_INPUT_DRAINED
) && (i
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
1015 pa_atomic_store(&i
->thread_info
.drained
, 1);
1017 i
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
1019 for (ssync
= i
->thread_info
.sync_prev
; ssync
; ssync
= ssync
->thread_info
.sync_prev
) {
1020 if ((PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_DRAINED
|| PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_RUNNING
) &&
1021 (ssync
->thread_info
.state
!= PA_SINK_INPUT_DRAINED
) && (ssync
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
1022 pa_atomic_store(&ssync
->thread_info
.drained
, 1);
1023 ssync
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
1026 for (ssync
= i
->thread_info
.sync_next
; ssync
; ssync
= ssync
->thread_info
.sync_next
) {
1027 if ((PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_DRAINED
|| PA_PTR_TO_UINT(userdata
) == PA_SINK_INPUT_RUNNING
) &&
1028 (ssync
->thread_info
.state
!= PA_SINK_INPUT_DRAINED
) && (ssync
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
1029 pa_atomic_store(&ssync
->thread_info
.drained
, 1);
1030 ssync
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);
1036 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
:
1038 i
->thread_info
.requested_sink_latency
= (pa_usec_t
) offset
;
1039 pa_sink_invalidate_requested_latency(i
->sink
);
1047 pa_sink_input_state_t
pa_sink_input_get_state(pa_sink_input
*i
) {
1048 pa_sink_input_assert_ref(i
);
1050 if (i
->state
== PA_SINK_INPUT_RUNNING
|| i
->state
== PA_SINK_INPUT_DRAINED
)
1051 return pa_atomic_load(&i
->thread_info
.drained
) ? PA_SINK_INPUT_DRAINED
: PA_SINK_INPUT_RUNNING
;
1056 pa_bool_t
pa_sink_input_safe_to_remove(pa_sink_input
*i
) {
1057 pa_sink_input_assert_ref(i
);
1059 if (i
->state
== PA_SINK_INPUT_RUNNING
|| i
->state
== PA_SINK_INPUT_DRAINED
|| i
->state
== PA_SINK_INPUT_CORKED
)
1060 return pa_atomic_load(&i
->thread_info
.render_memblockq_is_empty
);
1065 void pa_sink_input_request_rewrite(pa_sink_input
*i
, size_t nbytes
/* in our sample spec */) {
1068 pa_sink_input_assert_ref(i
);
1070 lbq
= pa_memblockq_get_length(i
->thread_info
.render_memblockq
);
1074 i
->thread_info
.resampler
?
1075 pa_resampler_request(i
->thread_info
.resampler
, i
->sink
->thread_info
.max_rewind
+ lbq
) :
1076 (i
->sink
->thread_info
.max_rewind
+ lbq
);
1079 i
->thread_info
.rewrite_nbytes
= PA_MAX(nbytes
, i
->thread_info
.rewrite_nbytes
);
1081 /* Transform to sink domain */
1082 l
= i
->thread_info
.resampler
? pa_resampler_result(i
->thread_info
.resampler
, nbytes
) : nbytes
;
1088 pa_sink_request_rewind(i
->sink
, l
- lbq
);