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 (32*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 static void reset_callbacks(pa_sink_input
*i
) {
101 i
->process_rewind
= NULL
;
102 i
->update_max_rewind
= NULL
;
108 i
->get_latency
= NULL
;
109 i
->state_change
= NULL
;
112 pa_sink_input
* pa_sink_input_new(
114 pa_sink_input_new_data
*data
,
115 pa_sink_input_flags_t flags
) {
118 pa_resampler
*resampler
= NULL
;
119 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
], cm
[PA_CHANNEL_MAP_SNPRINT_MAX
];
124 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_NEW
], data
) < 0)
127 pa_return_null_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
));
130 data
->sink
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SINK
, 1);
132 pa_return_null_if_fail(data
->sink
);
133 pa_return_null_if_fail(pa_sink_get_state(data
->sink
) != PA_SINK_UNLINKED
);
134 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
));
136 if (!data
->sample_spec_is_set
)
137 data
->sample_spec
= data
->sink
->sample_spec
;
139 pa_return_null_if_fail(pa_sample_spec_valid(&data
->sample_spec
));
141 if (!data
->channel_map_is_set
) {
142 if (data
->sink
->channel_map
.channels
== data
->sample_spec
.channels
)
143 data
->channel_map
= data
->sink
->channel_map
;
145 pa_return_null_if_fail(pa_channel_map_init_auto(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
));
148 pa_return_null_if_fail(pa_channel_map_valid(&data
->channel_map
));
149 pa_return_null_if_fail(data
->channel_map
.channels
== data
->sample_spec
.channels
);
151 if (!data
->volume_is_set
)
152 pa_cvolume_reset(&data
->volume
, data
->sample_spec
.channels
);
154 pa_return_null_if_fail(pa_cvolume_valid(&data
->volume
));
155 pa_return_null_if_fail(data
->volume
.channels
== data
->sample_spec
.channels
);
157 if (!data
->muted_is_set
)
160 if (flags
& PA_SINK_INPUT_FIX_FORMAT
)
161 data
->sample_spec
.format
= data
->sink
->sample_spec
.format
;
163 if (flags
& PA_SINK_INPUT_FIX_RATE
)
164 data
->sample_spec
.rate
= data
->sink
->sample_spec
.rate
;
166 if (flags
& PA_SINK_INPUT_FIX_CHANNELS
) {
167 data
->sample_spec
.channels
= data
->sink
->sample_spec
.channels
;
168 data
->channel_map
= data
->sink
->channel_map
;
171 pa_assert(pa_sample_spec_valid(&data
->sample_spec
));
172 pa_assert(pa_channel_map_valid(&data
->channel_map
));
174 /* Due to the fixing of the sample spec the volume might not match anymore */
175 if (data
->volume
.channels
!= data
->sample_spec
.channels
)
176 pa_cvolume_set(&data
->volume
, data
->sample_spec
.channels
, pa_cvolume_avg(&data
->volume
));
178 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
179 data
->resample_method
= core
->resample_method
;
181 pa_return_null_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
);
183 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SINK_INPUT_FIXATE
], data
) < 0)
186 if (pa_idxset_size(data
->sink
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
187 pa_log_warn("Failed to create sink input: too many inputs per sink.");
191 if ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
192 !pa_sample_spec_equal(&data
->sample_spec
, &data
->sink
->sample_spec
) ||
193 !pa_channel_map_equal(&data
->channel_map
, &data
->sink
->channel_map
)) {
195 if (!(resampler
= pa_resampler_new(
197 &data
->sample_spec
, &data
->channel_map
,
198 &data
->sink
->sample_spec
, &data
->sink
->channel_map
,
199 data
->resample_method
,
200 ((flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
201 ((flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
202 (core
->disable_remixing
|| (flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
203 pa_log_warn("Unsupported resampling operation.");
207 data
->resample_method
= pa_resampler_get_method(resampler
);
210 i
= pa_msgobject_new(pa_sink_input
);
211 i
->parent
.parent
.free
= sink_input_free
;
212 i
->parent
.process_msg
= pa_sink_input_process_msg
;
215 i
->state
= PA_SINK_INPUT_INIT
;
217 i
->proplist
= pa_proplist_copy(data
->proplist
);
218 i
->driver
= pa_xstrdup(data
->driver
);
219 i
->module
= data
->module
;
220 i
->sink
= data
->sink
;
221 i
->client
= data
->client
;
223 i
->resample_method
= data
->resample_method
;
224 i
->sample_spec
= data
->sample_spec
;
225 i
->channel_map
= data
->channel_map
;
227 i
->volume
= data
->volume
;
228 i
->muted
= data
->muted
;
230 if (data
->sync_base
) {
231 i
->sync_next
= data
->sync_base
->sync_next
;
232 i
->sync_prev
= data
->sync_base
;
234 if (data
->sync_base
->sync_next
)
235 data
->sync_base
->sync_next
->sync_prev
= i
;
236 data
->sync_base
->sync_next
= i
;
238 i
->sync_next
= i
->sync_prev
= NULL
;
243 i
->thread_info
.state
= i
->state
;
244 i
->thread_info
.attached
= FALSE
;
245 pa_atomic_store(&i
->thread_info
.drained
, 1);
246 i
->thread_info
.sample_spec
= i
->sample_spec
;
247 i
->thread_info
.resampler
= resampler
;
248 i
->thread_info
.volume
= i
->volume
;
249 i
->thread_info
.muted
= i
->muted
;
250 i
->thread_info
.requested_sink_latency
= (pa_usec_t
) -1;
251 i
->thread_info
.rewrite_nbytes
= 0;
252 i
->thread_info
.rewrite_flush
= FALSE
;
253 i
->thread_info
.underrun_for
= (uint64_t) -1;
254 i
->thread_info
.playing_for
= 0;
256 i
->thread_info
.render_memblockq
= pa_memblockq_new(
260 pa_frame_size(&i
->sink
->sample_spec
),
266 pa_assert_se(pa_idxset_put(core
->sink_inputs
, pa_sink_input_ref(i
), &i
->index
) == 0);
267 pa_assert_se(pa_idxset_put(i
->sink
->inputs
, i
, NULL
) == 0);
269 pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
271 pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)),
273 pa_sample_spec_snprint(st
, sizeof(st
), &i
->sample_spec
),
274 pa_channel_map_snprint(cm
, sizeof(cm
), &i
->channel_map
));
276 /* Don't forget to call pa_sink_input_put! */
281 static void update_n_corked(pa_sink_input
*i
, pa_sink_input_state_t state
) {
284 if (i
->state
== PA_SINK_INPUT_CORKED
&& state
!= PA_SINK_INPUT_CORKED
)
285 pa_assert_se(i
->sink
->n_corked
-- >= 1);
286 else if (i
->state
!= PA_SINK_INPUT_CORKED
&& state
== PA_SINK_INPUT_CORKED
)
289 pa_sink_update_status(i
->sink
);
292 static int sink_input_set_state(pa_sink_input
*i
, pa_sink_input_state_t state
) {
293 pa_sink_input
*ssync
;
296 if (state
== PA_SINK_INPUT_DRAINED
)
297 state
= PA_SINK_INPUT_RUNNING
;
299 if (i
->state
== state
)
302 if (pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
) < 0)
305 update_n_corked(i
, state
);
308 for (ssync
= i
->sync_prev
; ssync
; ssync
= ssync
->sync_prev
) {
309 update_n_corked(ssync
, state
);
310 ssync
->state
= state
;
312 for (ssync
= i
->sync_next
; ssync
; ssync
= ssync
->sync_next
) {
313 update_n_corked(ssync
, state
);
314 ssync
->state
= state
;
317 if (state
!= PA_SINK_INPUT_UNLINKED
)
318 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED
], i
);
323 void pa_sink_input_unlink(pa_sink_input
*i
) {
327 /* See pa_sink_unlink() for a couple of comments how this function
330 pa_sink_input_ref(i
);
332 linked
= PA_SINK_INPUT_IS_LINKED(i
->state
);
335 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK
], i
);
338 i
->sync_prev
->sync_next
= i
->sync_next
;
340 i
->sync_next
->sync_prev
= i
->sync_prev
;
342 i
->sync_prev
= i
->sync_next
= NULL
;
344 pa_idxset_remove_by_data(i
->sink
->core
->sink_inputs
, i
, NULL
);
345 if (pa_idxset_remove_by_data(i
->sink
->inputs
, i
, NULL
))
346 pa_sink_input_unref(i
);
348 update_n_corked(i
, PA_SINK_INPUT_UNLINKED
);
349 i
->state
= PA_SINK_INPUT_UNLINKED
;
352 if (i
->sink
->asyncmsgq
)
353 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_REMOVE_INPUT
, i
, 0, NULL
);
358 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, i
->index
);
359 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST
], i
);
363 pa_sink_input_unref(i
);
366 static void sink_input_free(pa_object
*o
) {
367 pa_sink_input
* i
= PA_SINK_INPUT(o
);
370 pa_assert(pa_sink_input_refcnt(i
) == 0);
372 if (PA_SINK_INPUT_IS_LINKED(i
->state
))
373 pa_sink_input_unlink(i
);
375 pa_log_info("Freeing input %u \"%s\"", i
->index
, pa_strnull(pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
)));
377 pa_assert(!i
->thread_info
.attached
);
379 if (i
->thread_info
.render_memblockq
)
380 pa_memblockq_free(i
->thread_info
.render_memblockq
);
382 if (i
->thread_info
.resampler
)
383 pa_resampler_free(i
->thread_info
.resampler
);
386 pa_proplist_free(i
->proplist
);
392 void pa_sink_input_put(pa_sink_input
*i
) {
393 pa_sink_input_state_t state
;
394 pa_sink_input_assert_ref(i
);
396 pa_assert(i
->state
== PA_SINK_INPUT_INIT
);
398 pa_assert(i
->process_rewind
);
400 i
->thread_info
.volume
= i
->volume
;
401 i
->thread_info
.muted
= i
->muted
;
403 state
= i
->flags
& PA_SINK_INPUT_START_CORKED
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
;
405 update_n_corked(i
, state
);
408 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_ADD_INPUT
, i
, 0, NULL
);
410 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_NEW
, i
->index
);
411 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PUT
], i
);
414 void pa_sink_input_kill(pa_sink_input
*i
) {
415 pa_sink_input_assert_ref(i
);
416 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
422 pa_usec_t
pa_sink_input_get_latency(pa_sink_input
*i
) {
425 pa_sink_input_assert_ref(i
);
426 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
428 if (pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_GET_LATENCY
, &r
, 0, NULL
) < 0)
432 r
+= i
->get_latency(i
);
437 /* Called from thread context */
438 int pa_sink_input_peek(pa_sink_input
*i
, size_t slength
/* in sink frames */, pa_memchunk
*chunk
, pa_cvolume
*volume
) {
439 pa_bool_t do_volume_adj_here
;
440 pa_bool_t volume_is_norm
;
441 size_t block_size_max_sink
, block_size_max_sink_input
;
444 pa_sink_input_assert_ref(i
);
445 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
446 pa_assert(pa_frame_aligned(slength
, &i
->sink
->sample_spec
));
450 /* pa_log_debug("peek"); */
455 pa_assert(i
->thread_info
.state
== PA_SINK_INPUT_RUNNING
||
456 i
->thread_info
.state
== PA_SINK_INPUT_CORKED
||
457 i
->thread_info
.state
== PA_SINK_INPUT_DRAINED
);
459 /* If there's still some rewrite request the handle, but the sink
460 didn't do this for us, we do it here. However, since the sink
461 apparently doesn't support rewinding, we pass 0 here. This still
462 allows rewinding through the render buffer. */
463 pa_sink_input_process_rewind(i
, 0);
465 block_size_max_sink_input
= i
->thread_info
.resampler
?
466 pa_resampler_max_block_size(i
->thread_info
.resampler
) :
467 pa_frame_align(pa_mempool_block_size_max(i
->sink
->core
->mempool
), &i
->sample_spec
);
469 block_size_max_sink
= pa_frame_align(pa_mempool_block_size_max(i
->sink
->core
->mempool
), &i
->sink
->sample_spec
);
471 /* Default buffer size */
473 slength
= pa_frame_align(CONVERT_BUFFER_LENGTH
, &i
->sink
->sample_spec
);
475 if (slength
> block_size_max_sink
)
476 slength
= block_size_max_sink
;
478 if (i
->thread_info
.resampler
) {
479 ilength
= pa_resampler_request(i
->thread_info
.resampler
, slength
);
482 ilength
= pa_frame_align(CONVERT_BUFFER_LENGTH
, &i
->sample_spec
);
486 if (ilength
> block_size_max_sink_input
)
487 ilength
= block_size_max_sink_input
;
489 /* If the channel maps of the sink and this stream differ, we need
490 * to adjust the volume *before* we resample. Otherwise we can do
491 * it after and leave it for the sink code */
493 do_volume_adj_here
= !pa_channel_map_equal(&i
->channel_map
, &i
->sink
->channel_map
);
494 volume_is_norm
= pa_cvolume_is_norm(&i
->thread_info
.volume
) && !i
->thread_info
.muted
;
496 while (!pa_memblockq_is_readable(i
->thread_info
.render_memblockq
)) {
499 /* There's nothing in our render queue. We need to fill it up
500 * with data from the implementor. */
502 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
||
503 i
->pop(i
, ilength
, &tchunk
) < 0) {
505 /* OK, we're corked or the implementor didn't give us any
506 * data, so let's just hand out silence */
507 pa_atomic_store(&i
->thread_info
.drained
, 1);
509 pa_memblockq_seek(i
->thread_info
.render_memblockq
, slength
, PA_SEEK_RELATIVE
);
510 i
->thread_info
.playing_for
= 0;
511 if (i
->thread_info
.underrun_for
!= (uint64_t) -1)
512 i
->thread_info
.underrun_for
+= ilength
;
516 pa_atomic_store(&i
->thread_info
.drained
, 0);
518 pa_assert(tchunk
.length
> 0);
519 pa_assert(tchunk
.memblock
);
521 i
->thread_info
.underrun_for
= 0;
522 i
->thread_info
.playing_for
+= tchunk
.length
;
524 while (tchunk
.length
> 0) {
528 pa_memblock_ref(wchunk
.memblock
);
530 if (wchunk
.length
> block_size_max_sink_input
)
531 wchunk
.length
= block_size_max_sink_input
;
533 /* It might be necessary to adjust the volume here */
534 if (do_volume_adj_here
&& !volume_is_norm
) {
535 pa_memchunk_make_writable(&wchunk
, 0);
537 if (i
->thread_info
.muted
)
538 pa_silence_memchunk(&wchunk
, &i
->thread_info
.sample_spec
);
540 pa_volume_memchunk(&wchunk
, &i
->thread_info
.sample_spec
, &i
->thread_info
.volume
);
543 if (!i
->thread_info
.resampler
)
544 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &wchunk
);
547 pa_resampler_run(i
->thread_info
.resampler
, &wchunk
, &rchunk
);
549 /* pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
551 if (rchunk
.memblock
) {
552 pa_memblockq_push_align(i
->thread_info
.render_memblockq
, &rchunk
);
553 pa_memblock_unref(rchunk
.memblock
);
557 pa_memblock_unref(wchunk
.memblock
);
559 tchunk
.index
+= wchunk
.length
;
560 tchunk
.length
-= wchunk
.length
;
563 pa_memblock_unref(tchunk
.memblock
);
566 pa_assert_se(pa_memblockq_peek(i
->thread_info
.render_memblockq
, chunk
) >= 0);
568 pa_assert(chunk
->length
> 0);
569 pa_assert(chunk
->memblock
);
571 /* pa_log_debug("peeking %lu", (unsigned long) chunk->length); */
573 if (chunk
->length
> block_size_max_sink
)
574 chunk
->length
= block_size_max_sink
;
576 /* Let's see if we had to apply the volume adjustment ourselves,
577 * or if this can be done by the sink for us */
579 if (do_volume_adj_here
)
580 /* We had different channel maps, so we already did the adjustment */
581 pa_cvolume_reset(volume
, i
->sink
->sample_spec
.channels
);
582 else if (i
->thread_info
.muted
)
583 /* We've both the same channel map, so let's have the sink do the adjustment for us*/
584 pa_cvolume_mute(volume
, i
->sink
->sample_spec
.channels
);
586 *volume
= i
->thread_info
.volume
;
591 /* Called from thread context */
592 void pa_sink_input_drop(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
593 pa_sink_input_assert_ref(i
);
595 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
596 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
597 pa_assert(nbytes
> 0);
599 /* pa_log_debug("dropping %lu", (unsigned long) nbytes); */
601 /* If there's still some rewrite request the handle, but the sink
602 didn't do this for us, we do it here. However, since the sink
603 apparently doesn't support rewinding, we pass 0 here. This still
604 allows rewinding through the render buffer. */
605 pa_sink_input_process_rewind(i
, 0);
607 pa_memblockq_drop(i
->thread_info
.render_memblockq
, nbytes
);
610 /* Called from thread context */
611 void pa_sink_input_process_rewind(pa_sink_input
*i
, size_t nbytes
/* in sink sample spec */) {
613 pa_sink_input_assert_ref(i
);
615 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
616 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
618 /* pa_log_debug("rewind(%lu, %lu)", (unsigned long) nbytes, (unsigned long) i->thread_info.rewrite_nbytes); */
620 lbq
= pa_memblockq_get_length(i
->thread_info
.render_memblockq
);
623 pa_log_debug("Have to rewind %lu bytes on render memblockq.", (unsigned long) nbytes
);
624 pa_memblockq_rewind(i
->thread_info
.render_memblockq
, nbytes
);
627 if (i
->thread_info
.rewrite_nbytes
== (size_t) -1) {
629 /* We were asked to drop all buffered data, and rerequest new
630 * data from implementor the next time push() is called */
632 pa_memblockq_flush(i
->thread_info
.render_memblockq
);
634 } else if (i
->thread_info
.rewrite_nbytes
> 0) {
635 size_t max_rewrite
, amount
;
637 /* Calculate how much make sense to rewrite at most */
638 max_rewrite
= nbytes
+ lbq
;
640 /* Transform into local domain */
641 if (i
->thread_info
.resampler
)
642 max_rewrite
= pa_resampler_request(i
->thread_info
.resampler
, max_rewrite
);
644 /* Calculate how much of the rewinded data should actually be rewritten */
645 amount
= PA_MIN(i
->thread_info
.rewrite_nbytes
, max_rewrite
);
648 pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) amount
);
650 /* Tell the implementor */
651 if (i
->process_rewind
)
652 i
->process_rewind(i
, amount
);
654 /* Convert back to to sink domain */
655 if (i
->thread_info
.resampler
)
656 amount
= pa_resampler_result(i
->thread_info
.resampler
, amount
);
659 /* Ok, now update the write pointer */
660 pa_memblockq_seek(i
->thread_info
.render_memblockq
, - ((int64_t) amount
), PA_SEEK_RELATIVE
);
662 if (i
->thread_info
.rewrite_flush
)
663 pa_memblockq_silence(i
->thread_info
.render_memblockq
);
665 /* And reset the resampler */
666 if (i
->thread_info
.resampler
)
667 pa_resampler_reset(i
->thread_info
.resampler
);
671 i
->thread_info
.rewrite_nbytes
= 0;
672 i
->thread_info
.rewrite_flush
= FALSE
;
675 /* Called from thread context */
676 void pa_sink_input_update_max_rewind(pa_sink_input
*i
, size_t nbytes
/* in the sink's sample spec */) {
677 pa_sink_input_assert_ref(i
);
678 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
679 pa_assert(pa_frame_aligned(nbytes
, &i
->sink
->sample_spec
));
681 pa_memblockq_set_maxrewind(i
->thread_info
.render_memblockq
, nbytes
);
683 if (i
->update_max_rewind
)
684 i
->update_max_rewind(i
, i
->thread_info
.resampler
? pa_resampler_request(i
->thread_info
.resampler
, nbytes
) : nbytes
);
687 static pa_usec_t
fixup_latency(pa_sink
*s
, pa_usec_t usec
) {
688 pa_sink_assert_ref(s
);
690 if (usec
== (pa_usec_t
) -1)
693 if (s
->max_latency
> 0 && usec
> s
->max_latency
)
694 usec
= s
->max_latency
;
696 if (s
->min_latency
> 0 && usec
< s
->min_latency
)
697 usec
= s
->min_latency
;
702 pa_usec_t
pa_sink_input_set_requested_latency_within_thread(pa_sink_input
*i
, pa_usec_t usec
) {
703 pa_sink_input_assert_ref(i
);
705 usec
= fixup_latency(i
->sink
, usec
);
707 i
->thread_info
.requested_sink_latency
= usec
;
708 pa_sink_invalidate_requested_latency(i
->sink
);
713 pa_usec_t
pa_sink_input_set_requested_latency(pa_sink_input
*i
, pa_usec_t usec
) {
714 pa_sink_input_assert_ref(i
);
716 usec
= fixup_latency(i
->sink
, usec
);
718 if (PA_SINK_INPUT_IS_LINKED(i
->state
))
719 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
, NULL
, (int64_t) usec
, NULL
, NULL
);
721 /* If this sink input is not realized yet, we have to touch
722 * the thread info data directly */
723 i
->thread_info
.requested_sink_latency
= usec
;
724 i
->sink
->thread_info
.requested_latency_valid
= FALSE
;
730 pa_usec_t
pa_sink_input_get_requested_latency(pa_sink_input
*i
) {
733 pa_sink_input_assert_ref(i
);
735 if (PA_SINK_INPUT_IS_LINKED(i
->state
))
736 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY
, &usec
, 0, NULL
);
738 /* If this sink input is not realized yet, we have to touch
739 * the thread info data directly */
740 usec
= i
->thread_info
.requested_sink_latency
;
745 void pa_sink_input_set_volume(pa_sink_input
*i
, const pa_cvolume
*volume
) {
746 pa_sink_input_assert_ref(i
);
747 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
749 if (pa_cvolume_equal(&i
->volume
, volume
))
754 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
);
755 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
758 const pa_cvolume
*pa_sink_input_get_volume(pa_sink_input
*i
) {
759 pa_sink_input_assert_ref(i
);
760 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
765 void pa_sink_input_set_mute(pa_sink_input
*i
, pa_bool_t mute
) {
767 pa_sink_input_assert_ref(i
);
768 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
770 if (!i
->muted
== !mute
)
775 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_MUTE
, PA_UINT_TO_PTR(mute
), 0, NULL
, NULL
);
776 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
779 int pa_sink_input_get_mute(pa_sink_input
*i
) {
780 pa_sink_input_assert_ref(i
);
781 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
786 void pa_sink_input_cork(pa_sink_input
*i
, pa_bool_t b
) {
787 pa_sink_input_assert_ref(i
);
788 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
790 sink_input_set_state(i
, b
? PA_SINK_INPUT_CORKED
: PA_SINK_INPUT_RUNNING
);
793 int pa_sink_input_set_rate(pa_sink_input
*i
, uint32_t rate
) {
794 pa_sink_input_assert_ref(i
);
795 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
796 pa_return_val_if_fail(i
->thread_info
.resampler
, -1);
798 if (i
->sample_spec
.rate
== rate
)
801 i
->sample_spec
.rate
= rate
;
803 pa_asyncmsgq_post(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
), PA_SINK_INPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
805 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
809 void pa_sink_input_set_name(pa_sink_input
*i
, const char *name
) {
811 pa_sink_input_assert_ref(i
);
813 if (!name
&& !pa_proplist_contains(i
->proplist
, PA_PROP_MEDIA_NAME
))
816 old
= pa_proplist_gets(i
->proplist
, PA_PROP_MEDIA_NAME
);
818 if (old
&& name
&& !strcmp(old
, name
))
822 pa_proplist_sets(i
->proplist
, PA_PROP_MEDIA_NAME
, name
);
824 pa_proplist_unset(i
->proplist
, PA_PROP_MEDIA_NAME
);
826 if (PA_SINK_INPUT_IS_LINKED(i
->state
)) {
827 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED
], i
);
828 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
832 pa_resample_method_t
pa_sink_input_get_resample_method(pa_sink_input
*i
) {
833 pa_sink_input_assert_ref(i
);
835 return i
->resample_method
;
838 int pa_sink_input_move_to(pa_sink_input
*i
, pa_sink
*dest
) {
839 pa_resampler
*new_resampler
;
841 pa_sink_input_move_hook_data hook_data
;
843 pa_sink_input_assert_ref(i
);
844 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->state
));
845 pa_sink_assert_ref(dest
);
852 if (i
->flags
& PA_SINK_INPUT_DONT_MOVE
)
855 if (i
->sync_next
|| i
->sync_prev
) {
856 pa_log_warn("Moving synchronised streams not supported.");
860 if (pa_idxset_size(dest
->inputs
) >= PA_MAX_INPUTS_PER_SINK
) {
861 pa_log_warn("Failed to move sink input: too many inputs per sink.");
865 if (i
->thread_info
.resampler
&&
866 pa_sample_spec_equal(&origin
->sample_spec
, &dest
->sample_spec
) &&
867 pa_channel_map_equal(&origin
->channel_map
, &dest
->channel_map
))
869 /* Try to reuse the old resampler if possible */
870 new_resampler
= i
->thread_info
.resampler
;
872 else if ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ||
873 !pa_sample_spec_equal(&i
->sample_spec
, &dest
->sample_spec
) ||
874 !pa_channel_map_equal(&i
->channel_map
, &dest
->channel_map
)) {
876 /* Okey, we need a new resampler for the new sink */
878 if (!(new_resampler
= pa_resampler_new(
880 &i
->sample_spec
, &i
->channel_map
,
881 &dest
->sample_spec
, &dest
->channel_map
,
883 ((i
->flags
& PA_SINK_INPUT_VARIABLE_RATE
) ? PA_RESAMPLER_VARIABLE_RATE
: 0) |
884 ((i
->flags
& PA_SINK_INPUT_NO_REMAP
) ? PA_RESAMPLER_NO_REMAP
: 0) |
885 (i
->core
->disable_remixing
|| (i
->flags
& PA_SINK_INPUT_NO_REMIX
) ? PA_RESAMPLER_NO_REMIX
: 0)))) {
886 pa_log_warn("Unsupported resampling operation.");
890 new_resampler
= NULL
;
892 hook_data
.sink_input
= i
;
893 hook_data
.destination
= dest
;
894 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE
], &hook_data
);
896 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_START_MOVE
, i
, 0, NULL
);
898 pa_idxset_remove_by_data(origin
->inputs
, i
, NULL
);
899 pa_idxset_put(dest
->inputs
, i
, NULL
);
902 if (pa_sink_input_get_state(i
) == PA_SINK_INPUT_CORKED
) {
903 pa_assert_se(origin
->n_corked
-- >= 1);
907 /* Replace resampler and render queue */
908 if (new_resampler
!= i
->thread_info
.resampler
) {
910 if (i
->thread_info
.resampler
)
911 pa_resampler_free(i
->thread_info
.resampler
);
912 i
->thread_info
.resampler
= new_resampler
;
914 pa_memblockq_free(i
->thread_info
.render_memblockq
);
916 i
->thread_info
.render_memblockq
= pa_memblockq_new(
920 pa_frame_size(&i
->sink
->sample_spec
),
927 pa_sink_update_status(origin
);
928 pa_sink_update_status(dest
);
930 pa_asyncmsgq_send(i
->sink
->asyncmsgq
, PA_MSGOBJECT(i
->sink
), PA_SINK_MESSAGE_FINISH_MOVE
, i
, 0, NULL
);
935 pa_hook_fire(&i
->sink
->core
->hooks
[PA_CORE_HOOK_SINK_INPUT_MOVE_POST
], i
);
937 pa_log_debug("Successfully moved sink input %i from %s to %s.", i
->index
, origin
->name
, dest
->name
);
939 /* Notify everyone */
940 pa_subscription_post(i
->sink
->core
, PA_SUBSCRIPTION_EVENT_SINK_INPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, i
->index
);
945 void pa_sink_input_set_state_within_thread(pa_sink_input
*i
, pa_sink_input_state_t state
) {
946 pa_sink_input_assert_ref(i
);
948 if (state
== i
->thread_info
.state
)
951 if ((state
== PA_SINK_INPUT_DRAINED
|| state
== PA_SINK_INPUT_RUNNING
) &&
952 !(i
->thread_info
.state
== PA_SINK_INPUT_DRAINED
|| i
->thread_info
.state
!= PA_SINK_INPUT_RUNNING
))
953 pa_atomic_store(&i
->thread_info
.drained
, 1);
955 if (state
== PA_SINK_INPUT_CORKED
&& i
->thread_info
.state
!= PA_SINK_INPUT_CORKED
) {
957 /* This will tell the implementing sink input driver to rewind
958 * so that the unplayed already mixed data is not lost */
959 pa_sink_input_request_rewind(i
, 0, TRUE
, TRUE
);
961 } else if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
&& state
!= PA_SINK_INPUT_CORKED
) {
963 /* OK, we're being uncorked. Make sure we're not rewound when
964 * the hw buffer is remixed and request a remix. */
965 pa_sink_input_request_rewind(i
, 0, FALSE
, TRUE
);
969 i
->state_change(i
, state
);
971 i
->thread_info
.state
= state
;
974 /* Called from thread context */
975 int pa_sink_input_process_msg(pa_msgobject
*o
, int code
, void *userdata
, int64_t offset
, pa_memchunk
*chunk
) {
976 pa_sink_input
*i
= PA_SINK_INPUT(o
);
978 pa_sink_input_assert_ref(i
);
979 pa_assert(PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
));
982 case PA_SINK_INPUT_MESSAGE_SET_VOLUME
:
983 i
->thread_info
.volume
= *((pa_cvolume
*) userdata
);
984 pa_sink_input_request_rewind(i
, 0, TRUE
, FALSE
);
987 case PA_SINK_INPUT_MESSAGE_SET_MUTE
:
988 i
->thread_info
.muted
= PA_PTR_TO_UINT(userdata
);
989 pa_sink_input_request_rewind(i
, 0, TRUE
, FALSE
);
992 case PA_SINK_INPUT_MESSAGE_GET_LATENCY
: {
993 pa_usec_t
*r
= userdata
;
995 *r
+= pa_bytes_to_usec(pa_memblockq_get_length(i
->thread_info
.render_memblockq
), &i
->sink
->sample_spec
);
999 case PA_SINK_INPUT_MESSAGE_SET_RATE
:
1001 i
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
1002 pa_resampler_set_input_rate(i
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
1006 case PA_SINK_INPUT_MESSAGE_SET_STATE
: {
1007 pa_sink_input
*ssync
;
1009 pa_sink_input_set_state_within_thread(i
, PA_PTR_TO_UINT(userdata
));
1011 for (ssync
= i
->thread_info
.sync_prev
; ssync
; ssync
= ssync
->thread_info
.sync_prev
)
1012 pa_sink_input_set_state_within_thread(ssync
, PA_PTR_TO_UINT(userdata
));
1014 for (ssync
= i
->thread_info
.sync_next
; ssync
; ssync
= ssync
->thread_info
.sync_next
)
1015 pa_sink_input_set_state_within_thread(ssync
, PA_PTR_TO_UINT(userdata
));
1020 case PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY
:
1022 pa_sink_input_set_requested_latency_within_thread(i
, (pa_usec_t
) offset
);
1025 case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY
: {
1026 pa_usec_t
*r
= userdata
;
1028 *r
= i
->thread_info
.requested_sink_latency
;
1036 pa_sink_input_state_t
pa_sink_input_get_state(pa_sink_input
*i
) {
1037 pa_sink_input_assert_ref(i
);
1039 if (i
->state
== PA_SINK_INPUT_RUNNING
|| i
->state
== PA_SINK_INPUT_DRAINED
)
1040 return pa_atomic_load(&i
->thread_info
.drained
) ? PA_SINK_INPUT_DRAINED
: PA_SINK_INPUT_RUNNING
;
1045 /* Called from IO context */
1046 pa_bool_t
pa_sink_input_safe_to_remove(pa_sink_input
*i
) {
1047 pa_sink_input_assert_ref(i
);
1049 if (PA_SINK_INPUT_IS_LINKED(i
->thread_info
.state
))
1050 return pa_memblockq_is_empty(i
->thread_info
.render_memblockq
);
1055 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
) {
1058 /* If 'rewrite' is TRUE the sink is rewound as far as requested
1059 * and possible and the exact value of this is passed back the
1060 * implementor via process_rewind(). If 'flush' is also TRUE all
1061 * already rendered data is also dropped.
1063 * If 'rewrite' is FALSE the sink is rewound as far as requested
1064 * and possible and the already rendered data is dropped so that
1065 * in the next iteration we read new data from the
1066 * implementor. This implies 'flush' is TRUE. */
1068 pa_sink_input_assert_ref(i
);
1069 pa_assert(i
->thread_info
.rewrite_nbytes
== 0);
1071 /* We don't take rewind requests while we are corked */
1072 if (i
->thread_info
.state
== PA_SINK_INPUT_CORKED
)
1075 pa_assert(rewrite
|| flush
);
1077 /* Calculate how much we can rewind locally without having to
1080 lbq
= pa_memblockq_get_length(i
->thread_info
.render_memblockq
);
1084 /* Check if rewinding for the maximum is requested, and if so, fix up */
1087 /* Calculate maximum number of bytes that could be rewound in theory */
1088 nbytes
= i
->sink
->thread_info
.max_rewind
+ lbq
;
1090 /* Transform from sink domain */
1091 if (i
->thread_info
.resampler
)
1092 nbytes
= pa_resampler_request(i
->thread_info
.resampler
, nbytes
);
1096 /* Make sure to not overwrite over underruns */
1097 if (nbytes
> i
->thread_info
.playing_for
)
1098 nbytes
= (size_t) i
->thread_info
.playing_for
;
1100 i
->thread_info
.rewrite_nbytes
= nbytes
;
1102 i
->thread_info
.rewrite_nbytes
= (size_t) -1;
1104 i
->thread_info
.rewrite_flush
= flush
&& i
->thread_info
.rewrite_nbytes
!= 0;
1106 /* Transform to sink domain */
1107 if (i
->thread_info
.resampler
)
1108 nbytes
= pa_resampler_result(i
->thread_info
.resampler
, nbytes
);
1111 pa_sink_request_rewind(i
->sink
, nbytes
- lbq
);
1114 pa_memchunk
* pa_sink_input_get_silence(pa_sink_input
*i
, pa_memchunk
*ret
) {
1115 pa_sink_input_assert_ref(i
);
1118 pa_silence_memchunk_get(
1119 &i
->sink
->core
->silence_cache
,
1120 i
->sink
->core
->mempool
,
1123 i
->thread_info
.resampler
? pa_resampler_max_block_size(i
->thread_info
.resampler
) : 0);