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termux-packages/packages/pulseaudio/module-sles-sink.c

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/***
This file is part of PulseAudio.
Copyright 2004-2008 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pulse/rtclock.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-util.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/modargs.h>
#include <pulsecore/module.h>
#include <pulsecore/rtpoll.h>
#include <pulsecore/sink.h>
#include <pulsecore/thread-mq.h>
#include <pulsecore/thread.h>
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
PA_MODULE_AUTHOR("Lennart Poettering, Nathan Martynov, Patrick Gaskin");
PA_MODULE_DESCRIPTION("Android OpenSL ES sink");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(false);
PA_MODULE_USAGE(
"sink_name=<name for the sink> "
"sink_properties=<properties for the sink> "
"latency=<buffer length> "
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate> "
"channel_map=<channel map> "
);
#define DEFAULT_SINK_NAME "OpenSL ES sink"
enum { SINK_MESSAGE_RENDER = PA_SINK_MESSAGE_MAX };
struct userdata {
pa_core *core;
pa_module *module;
pa_sink *sink;
pa_thread *thread;
pa_thread_mq thread_mq;
pa_rtpoll *rtpoll;
pa_rtpoll_item *rtpoll_item;
pa_asyncmsgq *sles_msgq;
pa_usec_t block_usec;
pa_memchunk memchunk;
void *buf;
size_t nbytes;
SLObjectItf EngineObject;
SLObjectItf OutputMixObject;
SLObjectItf PlayerObject;
SLEngineItf EngineItf;
SLPlayItf PlayItf;
SLBufferQueueItf BufferQueueItf;
};
static const char* const valid_modargs[] = {
"sink_name",
"sink_properties",
"latency",
"format",
"channels",
"rate",
"channel_map",
NULL
};
static void process_render(void *userdata) {
struct userdata* u = userdata;
pa_assert(u);
/* a render message could be queued after a set state message */
if (!PA_SINK_IS_LINKED(u->sink->thread_info.state))
return;
u->memchunk.length = u->nbytes;
pa_sink_render_into(u->sink, &u->memchunk);
(*u->BufferQueueItf)->Enqueue(u->BufferQueueItf, u->buf, u->memchunk.length);
}
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *memchunk) {
switch (code) {
case SINK_MESSAGE_RENDER:
process_render(data);
return 0;
case PA_SINK_MESSAGE_GET_LATENCY:
code = PA_SINK_MESSAGE_GET_FIXED_LATENCY; // FIXME: is there a way to get the real latency?
break;
}
return pa_sink_process_msg(o, code, data, offset, memchunk);
};
static void sles_callback(SLBufferQueueItf bqPlayerBufferQueue, void *userdata) {
struct userdata* u = userdata;
pa_assert(u);
pa_assert_se(pa_asyncmsgq_send(u->sles_msgq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_RENDER, u, 0, NULL) == 0);
}
// pa_channel_position_to_sl_speaker converts a PulseAudio channel position to
// the equivalent OpenSL ES speaker. If the channel does not have a OpenSL ES
// equivalent or is PA_CHANNEL_POSITION_INVALID, -1 is returned.
//
// https://freedesktop.org/software/pulseaudio/doxygen/channelmap_8h.html#af1cbe2738487c74f99e613779bd34bf2
// https://www.khronos.org/files/opensl_es_1_0_provisional_specs.pdf#9.2.47
static SLuint32 pa_channel_position_to_sl_speaker(enum pa_channel_position x) {
static const SLuint32 pa_channel_position_sl_speaker[] = {
// note: all SL_SPEAKER values != 0, and the empty array elements will be initialized to 0
[PA_CHANNEL_POSITION_MONO] = SL_SPEAKER_FRONT_CENTER,
[PA_CHANNEL_POSITION_FRONT_LEFT] = SL_SPEAKER_FRONT_LEFT,
[PA_CHANNEL_POSITION_FRONT_RIGHT] = SL_SPEAKER_FRONT_RIGHT,
[PA_CHANNEL_POSITION_FRONT_CENTER] = SL_SPEAKER_FRONT_CENTER,
[PA_CHANNEL_POSITION_REAR_CENTER] = SL_SPEAKER_BACK_CENTER,
[PA_CHANNEL_POSITION_REAR_LEFT] = SL_SPEAKER_BACK_LEFT,
[PA_CHANNEL_POSITION_REAR_RIGHT] = SL_SPEAKER_BACK_RIGHT,
[PA_CHANNEL_POSITION_LFE] = SL_SPEAKER_LOW_FREQUENCY,
[PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SL_SPEAKER_FRONT_LEFT_OF_CENTER,
[PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SL_SPEAKER_FRONT_RIGHT_OF_CENTER,
[PA_CHANNEL_POSITION_SIDE_LEFT] = SL_SPEAKER_SIDE_LEFT,
[PA_CHANNEL_POSITION_SIDE_RIGHT] = SL_SPEAKER_SIDE_RIGHT,
[PA_CHANNEL_POSITION_TOP_CENTER] = SL_SPEAKER_TOP_CENTER,
[PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SL_SPEAKER_TOP_FRONT_LEFT,
[PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SL_SPEAKER_TOP_FRONT_RIGHT,
[PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SL_SPEAKER_TOP_FRONT_CENTER,
[PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SL_SPEAKER_TOP_BACK_LEFT,
[PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SL_SPEAKER_TOP_BACK_RIGHT,
[PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SL_SPEAKER_TOP_BACK_CENTER,
};
pa_assert(x < PA_CHANNEL_POSITION_MAX);
return pa_channel_position_sl_speaker[x] ?: (SLuint32)(-1);
}
// sl_speaker_to_pa_channel_position converts an OpenSL ES speaker to the
// equivalent PulseAudio channel position. If the channel does not have a PA
// equivalent or is invalid, PA_CHANNEL_POSITION_INVALID is returned. Note that
// this function does not handle the edge case where (SL_SPEAKER_FRONT_CENTER &&
// channels == 1) is PA_CHANNEL_POSITION_MONO.
//
// https://freedesktop.org/software/pulseaudio/doxygen/channelmap_8h.html#af1cbe2738487c74f99e613779bd34bf2
// https://www.khronos.org/files/opensl_es_1_0_provisional_specs.pdf#9.2.47
static enum pa_channel_position sl_speaker_to_pa_channel_position(SLuint32 x) {
for (enum pa_channel_position pa = 0; pa < PA_CHANNEL_POSITION_MAX; pa++) {
if (pa != PA_CHANNEL_POSITION_MONO && pa_channel_position_to_sl_speaker(pa) == x) {
return pa;
}
}
return -1;
}
// pa_channel_map_to_sl_channel_mask converts a PulseAudio channel map to an
// OpenSL ES channel mask. If an unknown or unsupported channel position is
// found, -1 is returned. If map is NULL, 0 is returned.
//
// https://freedesktop.org/software/pulseaudio/doxygen/channelmap_8h.html#af1cbe2738487c74f99e613779bd34bf2
// https://www.khronos.org/files/opensl_es_1_0_provisional_specs.pdf#9.1.8
static SLuint32 pa_channel_map_to_sl_channel_mask(pa_channel_map *map) {
SLuint32 mask = 0, cur = 0, last = 0;
if (!map)
return 0;
for (int i = 0; i < map->channels; i++) {
if (map->map[i] == PA_CHANNEL_POSITION_INVALID) {
pa_log("Invalid channel found in channel map at position %d.", i);
return -1;
}
if ((cur = pa_channel_position_to_sl_speaker(map->map[i])) == -1) {
pa_log("No OpenSL ES equivalent for %s.", pa_channel_position_to_string(map->map[i]));;
return -1;
}
if (cur < last)
pa_log("Warning: Channel map does not match the OpenSL ES speaker order (%s should be before %s).", pa_channel_position_to_string(cur), pa_channel_position_to_string(last));
mask |= last = cur;
}
return mask;
}
// sl_channel_mask_to_pa_channel_map converts an OpenSL ES channel mask to a
// PulseAudio channel map by sorting the channels in order. On success, a 0 is
// returned. If an unknown channel is present or there are too many channels, -1
// is returned and rmap is left untouched.
//
// https://www.khronos.org/files/opensl_es_1_0_provisional_specs.pdf#9.1.8
static int sl_channel_mask_to_pa_channel_map(SLuint32 mask, pa_channel_map *rmap) {
static const SLuint32 speakers[] = {
SL_SPEAKER_FRONT_LEFT, SL_SPEAKER_FRONT_RIGHT, SL_SPEAKER_FRONT_CENTER,
SL_SPEAKER_LOW_FREQUENCY, SL_SPEAKER_BACK_LEFT, SL_SPEAKER_BACK_RIGHT,
SL_SPEAKER_FRONT_LEFT_OF_CENTER, SL_SPEAKER_FRONT_RIGHT_OF_CENTER,
SL_SPEAKER_BACK_CENTER, SL_SPEAKER_SIDE_LEFT, SL_SPEAKER_SIDE_RIGHT,
SL_SPEAKER_TOP_CENTER, SL_SPEAKER_TOP_FRONT_LEFT,
SL_SPEAKER_TOP_FRONT_CENTER, SL_SPEAKER_TOP_FRONT_RIGHT,
SL_SPEAKER_TOP_BACK_LEFT, SL_SPEAKER_TOP_BACK_CENTER,
SL_SPEAKER_TOP_BACK_RIGHT,
};
pa_channel_map map = {0};
pa_assert(rmap);
if (mask == SL_SPEAKER_FRONT_CENTER) {
rmap->channels = 1;
rmap->map[0] = PA_CHANNEL_POSITION_MONO;
return 0;
}
for (size_t i = 0; i < sizeof(speakers)/sizeof(*speakers); i++) {
pa_assert(i == 0 || speakers[i] > speakers[i-1]);
if (mask & speakers[i]) {
mask ^= speakers[i];
pa_assert((map.map[map.channels] = sl_speaker_to_pa_channel_position(speakers[i])) != -1);
if (++map.channels == PA_CHANNELS_MAX) {
pa_log("Too many channels in sl mask");
return -1;
}
}
}
if (mask) {
pa_log("Unknown channel in sl mask (left: %u)", mask);
return -1;
}
*rmap = map;
return 0;
}
// sl_guess_channel_mask guesses the speakers used for a certain number of
// channels. It uses the same logic as Chromium and works correctly on most
// devices. If the number of channels is unsupported, -1 is returned.
//
// https://source.chromium.org/chromium/chromium/src/+/master:media/audio/android/opensles_util.cc;l=23-50;drc=6ae2127739229f68ed7cd466012db4c6e5e6bbcd
// https://github.com/google/oboe/blob/52e2163781c8f485f5e67b081c94043a6e8dff15/src/opensles/AudioOutputStreamOpenSLES.cpp#L69-L110
// https://www2.iis.fraunhofer.de/AAC/multichannel.html (for testing)
// https://www.youtube.com/watch?v=MkVyFZi8ClE (also good for testing)
static SLuint32 sl_guess_channel_mask(int channels) {
#define SL_ANDROID_SPEAKER_QUAD (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT | SL_SPEAKER_BACK_LEFT | SL_SPEAKER_BACK_RIGHT)
#define SL_ANDROID_SPEAKER_5DOT1 (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT | SL_SPEAKER_FRONT_CENTER | SL_SPEAKER_LOW_FREQUENCY | SL_SPEAKER_BACK_LEFT | SL_SPEAKER_BACK_RIGHT)
#define SL_ANDROID_SPEAKER_7DOT1 (SL_ANDROID_SPEAKER_5DOT1 | SL_SPEAKER_SIDE_LEFT | SL_SPEAKER_SIDE_RIGHT)
if (channels > 2)
pa_log("Warning: Guessing channel layout for > 2 channels, order may be be incorrect.");
switch (channels) {
case 1: return SL_SPEAKER_FRONT_CENTER;
case 2: return SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
case 3: return SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT | SL_SPEAKER_FRONT_CENTER;
case 4: return SL_ANDROID_SPEAKER_QUAD;
case 5: return SL_ANDROID_SPEAKER_QUAD | SL_SPEAKER_FRONT_CENTER;
case 6: return SL_ANDROID_SPEAKER_5DOT1;
case 7: return SL_ANDROID_SPEAKER_5DOT1 | SL_SPEAKER_BACK_CENTER;
case 8: return SL_ANDROID_SPEAKER_7DOT1;
default:
pa_log("No guess for %d channels.", channels);
return -1;
}
#undef SL_ANDROID_SPEAKER_7DOT1
#undef SL_ANDROID_SPEAKER_5DOT1
#undef SL_ANDROID_SPEAKER_QUAD
}
static int pa_sample_spec_to_sl_format(pa_sample_spec *ss, pa_channel_map *map, SLAndroidDataFormat_PCM_EX *sl) {
pa_assert(ss);
pa_assert(sl);
*sl = (SLAndroidDataFormat_PCM_EX){0};
sl->sampleRate = ss->rate * 1000; // Hz to mHz
switch (ss->format) {
case PA_SAMPLE_S16LE: // fallthrough
case PA_SAMPLE_S24LE: // fallthrough
case PA_SAMPLE_S32LE: // fallthrough
case PA_SAMPLE_S16BE: // fallthrough
case PA_SAMPLE_S24BE: // fallthrough
case PA_SAMPLE_S32BE:
sl->formatType = SL_DATAFORMAT_PCM;
sl->representation = SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT;
break;
case PA_SAMPLE_FLOAT32LE: // fallthrough
case PA_SAMPLE_FLOAT32BE:
sl->formatType = SL_ANDROID_DATAFORMAT_PCM_EX;
sl->representation = SL_ANDROID_PCM_REPRESENTATION_FLOAT;
break;
default:
pa_log_error("Unsupported sample format: only s16/24/32 and f32 formats are supported.");
return 1;
}
sl->endianness = pa_sample_format_is_le(ss->format)
? SL_BYTEORDER_LITTLEENDIAN
: SL_BYTEORDER_BIGENDIAN;
sl->bitsPerSample = sl->containerSize = pa_sample_size(ss) * 8;
sl->sampleRate = ss->rate * 1000; // Hz to mHz
if (map) {
pa_assert((sl->numChannels = ss->channels) == map->channels);
if ((sl->channelMask = pa_channel_map_to_sl_channel_mask(map)) == (SLuint32)(-1)) {
pa_log_error("Unsupported sample format: no sl equivalent for channel map.");
return 1;
}
} else {
if ((sl->channelMask = sl_guess_channel_mask((sl->numChannels = ss->channels))) == (SLuint32)(-1)) {
pa_log_error("Unsupported sample format: could not guess channel mask for provided number of channels.");
return 1;
}
}
return 0;
}
// pa_channel_map_init_sles is pa_channel_map_init from PulseAudio, but modified
// to use sl_guess_channel_mask.
//
// https://github.com/pulseaudio/pulseaudio/blob/7f4d7fcf5f6407913e50604c6195d0d5356195b1/src/pulse/channelmap.c#L165-L395
static pa_channel_map *pa_channel_map_init_sles(pa_channel_map *m, unsigned channels) {
pa_assert(m);
pa_assert(pa_channels_valid(channels));
pa_channel_map_init(m);
SLuint32 mask = sl_guess_channel_mask(channels);
if (mask == (SLuint32)(-1))
return NULL;
pa_assert(sl_channel_mask_to_pa_channel_map(mask, m) != -1);
pa_assert(m->channels == channels);
return m;
}
// pa_channel_map_init_extend_sles is pa_channel_map_init_extend from
// PulseAudio, but modified to use pa_channel_map_init_sles.
//
// https://github.com/pulseaudio/pulseaudio/blob/7f4d7fcf5f6407913e50604c6195d0d5356195b1/src/pulse/channelmap.c#L397-L424
static pa_channel_map* pa_channel_map_init_extend_sles(pa_channel_map *m, unsigned channels) {
unsigned c;
pa_assert(m);
pa_assert(pa_channels_valid(channels));
pa_channel_map_init(m);
for (c = channels; c > 0; c--) {
if (pa_channel_map_init_sles(m, c)) {
unsigned i = 0;
for (; c < channels; c++) {
m->map[c] = PA_CHANNEL_POSITION_AUX0 + i;
i++;
}
m->channels = (uint8_t) channels;
return m;
}
}
return NULL;
}
// pa_modargs_get_sample_spec_and_channel_map_sles is
// pa_modargs_get_sample_spec_and_channel_map from PulseAudio, but modified
// to use the previous two functions.
//
// https://github.com/pulseaudio/pulseaudio/blob/7f4d7fcf5f6407913e50604c6195d0d5356195b1/src/pulsecore/modargs.c#L479-L515
static int pa_modargs_get_sample_spec_and_channel_map_sles(pa_modargs *ma, pa_sample_spec *rss, pa_channel_map *rmap) {
pa_sample_spec ss;
pa_channel_map map;
pa_assert(rss);
pa_assert(rmap);
ss = *rss;
if (pa_modargs_get_sample_spec(ma, &ss) < 0)
return -1;
map = *rmap;
if (ss.channels != map.channels)
pa_channel_map_init_extend_sles(&map, ss.channels);
if (pa_modargs_get_channel_map(ma, NULL, &map) < 0)
return -1;
if (map.channels != ss.channels) {
if (!pa_modargs_get_value(ma, "channels", NULL))
ss.channels = map.channels;
else
return -1;
}
*rmap = map;
*rss = ss;
return 0;
}
static int pa_init_sles_player(struct userdata *u, pa_sample_spec *ss, pa_channel_map *map) {
pa_assert(u);
// check and convert the sample spec
SLAndroidDataFormat_PCM_EX pcm;
if (pa_sample_spec_to_sl_format(ss, map, &pcm))
return 1;
// common sles error handling
#define CHK(stmt) { \
SLresult res = (stmt); \
if (res != SL_RESULT_SUCCESS) { \
pa_log_error("Failed to initialize OpenSL ES: error %d at %s:%d", \
res, __FILE__, __LINE__); \
return 1; \
} \
}
// create the engine
CHK(slCreateEngine(&u->EngineObject, 0, NULL, 0, NULL, NULL));
CHK((*u->EngineObject)->Realize(u->EngineObject, SL_BOOLEAN_FALSE));
// create the outputmix
CHK((*u->EngineObject)->GetInterface(u->EngineObject, SL_IID_ENGINE, &(u->EngineItf)));
CHK((*u->EngineItf)->CreateOutputMix(u->EngineItf, &u->OutputMixObject, 0, NULL, NULL));
CHK((*u->OutputMixObject)->Realize(u->OutputMixObject, SL_BOOLEAN_FALSE));
// create the player
CHK(({
SLresult r = (*u->EngineItf)->CreateAudioPlayer(u->EngineItf,
&u->PlayerObject,
&(SLDataSource){
.pLocator = &(SLDataLocator_BufferQueue){
.locatorType = SL_DATALOCATOR_BUFFERQUEUE,
.numBuffers = 8,
},
.pFormat = &pcm,
},
&(SLDataSink){
.pLocator = &(SLDataLocator_OutputMix){
.locatorType = SL_DATALOCATOR_OUTPUTMIX,
.outputMix = u->OutputMixObject,
},
.pFormat = NULL,
},
1,
(SLInterfaceID[]){SL_IID_BUFFERQUEUE},
(SLboolean[]){SL_BOOLEAN_TRUE}
);
if (r == SL_RESULT_CONTENT_UNSUPPORTED)
pa_log(
"Failed to initialize OpenSL ES; try checking logcat and "
"searching for messages with 'libOpenSLES:'"
);
r;
}));
// realize the player
CHK((*u->PlayerObject)->Realize(u->PlayerObject, SL_BOOLEAN_FALSE));
CHK((*u->PlayerObject)->GetInterface(u->PlayerObject, SL_IID_PLAY, &u->PlayItf));
// register the callback
CHK((*u->PlayerObject)->GetInterface(u->PlayerObject, SL_IID_BUFFERQUEUE, &u->BufferQueueItf));
CHK((*u->BufferQueueItf)->RegisterCallback(u->BufferQueueItf, sles_callback, u));
// cleanup
#undef CHK
return 0;
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
for (;;) {
int ret;
if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
pa_sink_process_rewind(u->sink, 0);
if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
goto fail;
if (ret == 0)
goto finish;
}
fail:
/* If this was no regular exit from the loop we have to continue
* processing messages until we received PA_MESSAGE_SHUTDOWN */
pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
finish:
pa_log_debug("Thread shutting down");
}
static int state_func(pa_sink *s, pa_sink_state_t state, pa_suspend_cause_t suspend_cause) {
struct userdata *u = s->userdata;
pa_assert(u);
if (PA_SINK_IS_OPENED(s->state) && (state == PA_SINK_SUSPENDED || state == PA_SINK_UNLINKED))
(*u->PlayItf)->SetPlayState(u->PlayItf, SL_PLAYSTATE_STOPPED);
else if ((s->state == PA_SINK_SUSPENDED || s->state == PA_SINK_INIT) && PA_SINK_IS_OPENED(state))
(*u->PlayItf)->SetPlayState(u->PlayItf, SL_PLAYSTATE_PLAYING);
return 0;
}
int pa__init(pa_module*m) {
struct userdata *u = NULL;
pa_modargs *ma = NULL;
pa_sink_new_data sink_data;
pa_sample_spec ss;
pa_channel_map map;
uint32_t latency = 0;
pa_assert(m);
m->userdata = u = pa_xnew0(struct userdata, 1);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
u->core = m->core;
u->module = m;
u->rtpoll = pa_rtpoll_new();
if (pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll) < 0) {
pa_log("pa_thread_mq_init() failed.");
goto fail;
}
if (!(u->sles_msgq = pa_asyncmsgq_new(0))) {
pa_log("pa_asyncmsgq_new() failed.");
goto fail;
}
u->rtpoll_item = pa_rtpoll_item_new_asyncmsgq_read(u->rtpoll, PA_RTPOLL_EARLY-1, u->sles_msgq);
pa_sink_new_data_init(&sink_data);
sink_data.driver = __FILE__;
sink_data.module = m;
ss = m->core->default_sample_spec;
map = m->core->default_channel_map;
if (pa_modargs_get_sample_spec_and_channel_map_sles(ma, &ss, &map) < 0) {
pa_log("Invalid sample format specification or channel map.");
goto fail;
}
if (pa_init_sles_player(u, &ss, &map))
goto fail;
pa_sink_new_data_set_name(&sink_data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
pa_sink_new_data_set_sample_spec(&sink_data, &ss);
pa_sink_new_data_set_channel_map(&sink_data, &map);
pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "OpenSL ES Output");
pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "abstract");
if (pa_modargs_get_proplist(ma, "sink_properties", sink_data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties.");
pa_sink_new_data_done(&sink_data);
goto fail;
}
if (!(u->sink = pa_sink_new(m->core, &sink_data, 0))) {
pa_log("Failed to create sink object.");
pa_sink_new_data_done(&sink_data);
goto fail;
}
pa_sink_new_data_done(&sink_data);
u->sink->userdata = u;
u->sink->parent.process_msg = sink_process_msg;
u->sink->set_state_in_main_thread = state_func;
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
pa_modargs_get_value_u32(ma, "latency", &latency);
u->block_usec = latency
? PA_USEC_PER_MSEC * latency
: PA_USEC_PER_MSEC * 125;
pa_sink_set_fixed_latency(u->sink, u->block_usec);
u->nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
u->buf = calloc(1, u->nbytes);
u->memchunk.memblock = pa_memblock_new_fixed(m->core->mempool, u->buf, u->nbytes, false);
if (!(u->thread = pa_thread_new("sles-sink", thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
pa_sink_put(u->sink);
sles_callback(u->BufferQueueItf, u);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__get_n_used(pa_module *m) {
struct userdata *u;
pa_assert(m);
pa_assert_se(u = m->userdata);
return pa_sink_linked_by(u->sink);
}
void pa__done(pa_module *m) {
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->sink)
pa_sink_unlink(u->sink);
if (u->PlayerObject)
(*u->PlayerObject)->Destroy(u->PlayerObject);
if (u->OutputMixObject)
(*u->OutputMixObject)->Destroy(u->OutputMixObject);
if (u->EngineObject)
(*u->EngineObject)->Destroy(u->EngineObject);
if (u->memchunk.memblock)
pa_memblock_unref_fixed(u->memchunk.memblock);
free(u->buf);
if (u->thread) {
pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
pa_thread_free(u->thread);
}
pa_thread_mq_done(&u->thread_mq);
if (u->sink)
pa_sink_unref(u->sink);
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
if (u->sles_msgq)
pa_asyncmsgq_unref(u->sles_msgq);
if (u->rtpoll)
pa_rtpoll_free(u->rtpoll);
pa_xfree(u);
}
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