[termux-packages] / packages / libpulseaudio / module-sles-sink.c

/***
  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 <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>

#include <pulse/rtclock.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>

#include <pulsecore/i18n.h>
#include <pulsecore/macro.h>
#include <pulsecore/sink.h>
#include <pulsecore/module.h>
#include <pulsecore/core-util.h>
#include <pulsecore/modargs.h>
#include <pulsecore/log.h>
#include <pulsecore/thread.h>
#include <pulsecore/thread-mq.h>
#include <pulsecore/rtpoll.h>

#include <SLES/OpenSLES.h>

#include "module-sles-sink-symdef.h"

#ifdef USE_ANDROID_SIMPLE_BUFFER_QUEUE
	#include <SLES/OpenSLES_Android.h>
	#define DATALOCATOR_BUFFERQUEUE SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
	#define IID_BUFFERQUEUE SL_IID_ANDROIDSIMPLEBUFFERQUEUE
	#define BufferQueueItf SLAndroidSimpleBufferQueueItf
	#define BufferQueueState SLAndroidSimpleBufferQueueState
	#define IID_BUFFERQUEUE_USED SL_IID_ANDROIDSIMPLEBUFFERQUEUE
	#define INDEX index
#else
	#define DATALOCATOR_BUFFERQUEUE SL_DATALOCATOR_BUFFERQUEUE
	#define IID_BUFFERQUEUE SL_IID_BUFFERQUEUE
	#define BufferQueueItf SLBufferQueueItf
	#define BufferQueueState SLBufferQueueState
	#define IID_BUFFERQUEUE_USED IID_BUFFERQUEUE
	#define INDEX playIndex
#endif

#define checkResult(r) do { \
	if ((r) != SL_RESULT_SUCCESS) { \
		if ((r) == SL_RESULT_PARAMETER_INVALID) fprintf(stderr, "error SL_RESULT_PARAMETER_INVALID at %s:%d\n", __FILE__, __LINE__); \
		else if ((r) == SL_RESULT_PRECONDITIONS_VIOLATED ) fprintf(stderr, "error SL_RESULT_PRECONDITIONS_VIOLATED at %s:%d\n", __FILE__, __LINE__); \
		else fprintf(stderr, "error %d at %s:%d\n", (int) r, __FILE__, __LINE__); \
		} \
	} while (0)
typedef struct {
	short left;
	short right;
} frame_t;

PA_MODULE_AUTHOR("Lennart Poettering, Nathan Martynov");
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> "
        "rate=<sampling rate> ");

#define DEFAULT_SINK_NAME "OpenSL ES sink"
#define BLOCK_USEC (PA_USEC_PER_SEC * 2)

struct userdata {
    pa_core *core;
    pa_module *module;
    pa_sink *sink;

    pa_thread *thread;
    pa_thread_mq thread_mq;
    pa_rtpoll *rtpoll;

    pa_usec_t block_usec;
    pa_usec_t timestamp;
    
    pa_memchunk memchunk;
    
	SLObjectItf engineObject;
	SLEngineItf engineEngine;
 
	// output mix interfaces
	SLObjectItf outputMixObject;
 
	// buffer queue player interfaces
	SLObjectItf bqPlayerObject;
	SLPlayItf bqPlayerPlay;
	BufferQueueItf bqPlayerBufferQueue;
};

static const char* const valid_modargs[] = {
    "sink_name",
    "sink_properties",
    "rate",
    NULL
};

static int sink_process_msg(
        pa_msgobject *o,
        int code,
        void *data,
        int64_t offset,
        pa_memchunk *chunk) {

    struct userdata *u = PA_SINK(o)->userdata;

    switch (code) {
        case PA_SINK_MESSAGE_SET_STATE:

            if (pa_sink_get_state(u->sink) == PA_SINK_SUSPENDED || pa_sink_get_state(u->sink) == PA_SINK_INIT) {
                if (PA_PTR_TO_UINT(data) == PA_SINK_RUNNING || PA_PTR_TO_UINT(data) == PA_SINK_IDLE)
                    u->timestamp = pa_rtclock_now();
            }

            break;

        case PA_SINK_MESSAGE_GET_LATENCY: {
            pa_usec_t now;

            now = pa_rtclock_now();
            *((pa_usec_t*) data) = u->timestamp > now ? u->timestamp - now : 0ULL;

            return 0;
        }
    }

    return pa_sink_process_msg(o, code, data, offset, chunk);
}

static void sink_update_requested_latency_cb(pa_sink *s) {
    struct userdata *u;
    size_t nbytes;

    pa_sink_assert_ref(s);
    pa_assert_se(u = s->userdata);

    u->block_usec = pa_sink_get_requested_latency_within_thread(s);

    if (u->block_usec == (pa_usec_t) -1)
        u->block_usec = s->thread_info.max_latency;

    nbytes = pa_usec_to_bytes(u->block_usec, &s->sample_spec);
    pa_sink_set_max_rewind_within_thread(s, nbytes);
    pa_sink_set_max_request_within_thread(s, nbytes);
}

static int pa_init_sles_player(struct userdata *s, SLint32 sl_rate)
{
	if (s == NULL) return -1;
	SLresult result;
	
	// create engine
	result = slCreateEngine(&(s->engineObject), 0, NULL, 0, NULL, NULL); checkResult(result);
	result = (*s->engineObject)->Realize(s->engineObject, SL_BOOLEAN_FALSE); checkResult(result);
	
	result = (*s->engineObject)->GetInterface(s->engineObject, SL_IID_ENGINE, &(s->engineEngine)); checkResult(result);
	
	// create output mix
	result = (*s->engineEngine)->CreateOutputMix(s->engineEngine, &(s->outputMixObject), 0, NULL, NULL);  checkResult(result);
	result = (*s->outputMixObject)->Realize(s->outputMixObject, SL_BOOLEAN_FALSE); checkResult(result);
	
	// create audio player
		
	SLDataLocator_OutputMix locator_outputmix;
	locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
	locator_outputmix.outputMix = s->outputMixObject;
	
	SLDataLocator_BufferQueue locator_bufferqueue;
	locator_bufferqueue.locatorType = DATALOCATOR_BUFFERQUEUE;
	locator_bufferqueue.numBuffers = 50;
	
	if (sl_rate < 0) {
		pa_log("Incompatible sample rate");
		return -1;
	}
	
	SLDataFormat_PCM pcm;
	pcm.formatType = SL_DATAFORMAT_PCM;
	pcm.numChannels = 2;
	pcm.samplesPerSec = sl_rate;
	pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
	pcm.containerSize = 16;
	pcm.channelMask = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
	pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
	
	SLDataSource audiosrc;
	audiosrc.pLocator = &locator_bufferqueue;
	audiosrc.pFormat = &pcm;
	
	SLDataSink audiosnk;
	audiosnk.pLocator = &locator_outputmix;
	audiosnk.pFormat = NULL;
	
	SLInterfaceID ids[1] = {IID_BUFFERQUEUE};
	SLboolean flags[1] = {SL_BOOLEAN_TRUE};
	result = (*s->engineEngine)->CreateAudioPlayer(s->engineEngine, &s->bqPlayerObject, &audiosrc, &audiosnk, 1, ids, flags);  checkResult(result);
	result = (*s->bqPlayerObject)->Realize(s->bqPlayerObject, SL_BOOLEAN_FALSE); checkResult(result);
	
	result = (*s->bqPlayerObject)->GetInterface(s->bqPlayerObject, SL_IID_PLAY, &s->bqPlayerPlay); checkResult(result);
	result = (*s->bqPlayerObject)->GetInterface(s->bqPlayerObject, IID_BUFFERQUEUE_USED, &s->bqPlayerBufferQueue); checkResult(result);
	
	result = (*s->bqPlayerPlay)->SetPlayState(s->bqPlayerPlay, SL_PLAYSTATE_PLAYING); checkResult(result);
	return 0;
}

static void pa_destroy_sles_player(struct userdata *s){
	if (s == NULL) return;
	(*s->bqPlayerPlay)->SetPlayState(s->bqPlayerPlay, SL_PLAYSTATE_STOPPED);
	(*s->bqPlayerObject)->Destroy(s->bqPlayerObject);
	(*s->outputMixObject)->Destroy(s->outputMixObject);
	(*s->engineObject)->Destroy(s->engineObject);
}

static void process_render(struct userdata *u, pa_usec_t now) {
    size_t ate = 0;

    pa_assert(u);

    /* This is the configured latency. Sink inputs connected to us
    might not have a single frame more than the maxrequest value
    queued. Hence: at maximum read this many bytes from the sink
    inputs. */

    /* Fill the buffer up the latency size */
    while (u->timestamp < now + u->block_usec) {
        void *p;
		
        pa_sink_render(u->sink, u->sink->thread_info.max_request, &u->memchunk);
        p = pa_memblock_acquire(u->memchunk.memblock);
        (*u->bqPlayerBufferQueue)->Enqueue(u->bqPlayerBufferQueue, (uint8_t*) p + u->memchunk.index, u->memchunk.length);
        pa_memblock_release(u->memchunk.memblock);

        u->timestamp += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec);
        ate += u->memchunk.length;
        if (ate >= u->sink->thread_info.max_request) break;
    }
}

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);

    u->timestamp = pa_rtclock_now();

    for (;;) {
        pa_usec_t now = 0;
        int ret;

        if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
            now = pa_rtclock_now();

        if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
              pa_sink_process_rewind(u->sink, 0);

        /* Render some data and drop it immediately */
        if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
            if (u->timestamp <= now)
                process_render(u, now);

            pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
        } else
            pa_rtpoll_set_timer_disabled(u->rtpoll);

        /* Hmm, nothing to do. Let's sleep */
        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 SLint32 PA2SLrate(int32_t rate){
	if (!(rate >= 8000 && rate <= 192000)) return -1;
	switch(rate){
		case 8000:
			return SL_SAMPLINGRATE_8;
		case 11025:
			return SL_SAMPLINGRATE_11_025;
		case 12000:
			return SL_SAMPLINGRATE_12;
		case 16000:
			return SL_SAMPLINGRATE_16;
		case 22050:
			return SL_SAMPLINGRATE_22_05;
		case 24000:
			return SL_SAMPLINGRATE_24;
		case 32000:
			return SL_SAMPLINGRATE_32;
		case 44100:
			return SL_SAMPLINGRATE_44_1;
		case 48000:
			return SL_SAMPLINGRATE_48;
		case 64000:
			return SL_SAMPLINGRATE_64;
		case 88200:
			return SL_SAMPLINGRATE_88_2;
		case 96000:
			return SL_SAMPLINGRATE_96;
		case 192000:
			return SL_SAMPLINGRATE_192;
		default:
			return -1;
        }
}

int pa__init(pa_module*m) {
    struct userdata *u = NULL;
    pa_sample_spec ss;
    pa_channel_map map;
    pa_modargs *ma = NULL;
    pa_sink_new_data data;
    size_t nbytes;

    pa_assert(m);

    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
        pa_log("Failed to parse module arguments.");
        goto fail;
    }

    // High rate causes glitches on some devices, this is needed to prevent it
    //ss.rate = 32000;
    //ss.channels = 2;
    //ss.format = PA_SAMPLE_S16LE;
    
    //OK. That will allow users to define sampling rate under his responsibility
    ss = m->core->default_sample_spec;
    map = m->core->default_channel_map;
    if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
        pa_log("Invalid sample format specification or channel map");
        goto fail;
    }

	//Needed. Don't touch
    ss.channels = 2; 
    ss.format = PA_SAMPLE_S16LE;
    int forceFormat = atoi(getenv("PROPERTY_OUTPUT_SAMPLE_RATE"));
    if (forceFormat >= 8000 && forceFormat <= 192000) 
	ss.rate = forceFormat;
    
    m->userdata = u = pa_xnew0(struct userdata, 1);
    u->core = m->core;
    u->module = m;
    u->rtpoll = pa_rtpoll_new();
    pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
	
	if (pa_init_sles_player(u, PA2SLrate(ss.rate)) < 0)
		goto fail;
	int buff[2] = {0, 0};
	(*u->bqPlayerBufferQueue)->Enqueue(u->bqPlayerBufferQueue, buff, 1);

    pa_sink_new_data_init(&data);
    data.driver = __FILE__;
    data.module = m;
    pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
    pa_sink_new_data_set_sample_spec(&data, &ss);
    pa_sink_new_data_set_channel_map(&data, &map);
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, _("OpenSL ES Output"));
    pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract");

    if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
        pa_log("Invalid properties");
        pa_sink_new_data_done(&data);
        goto fail;
    }

    u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY);
    pa_sink_new_data_done(&data);

    if (!u->sink) {
        pa_log("Failed to create sink object.");
        goto fail;
    }

    u->sink->parent.process_msg = sink_process_msg;
    u->sink->update_requested_latency = sink_update_requested_latency_cb;
    u->sink->userdata = u;

    pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
    pa_sink_set_rtpoll(u->sink, u->rtpoll);

    u->block_usec = BLOCK_USEC;
    nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
    pa_sink_set_max_rewind(u->sink, nbytes);
    pa_sink_set_max_request(u->sink, nbytes);

    if (!(u->thread = pa_thread_new("sles-sink", thread_func, u))) {
        pa_log("Failed to create thread.");
        goto fail;
    }

    pa_sink_set_latency_range(u->sink, 0, BLOCK_USEC);

    pa_sink_put(u->sink);

    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->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)
        pa_rtpoll_free(u->rtpoll);

    pa_xfree(u);
}
Commit	Line	Data
674a9bc3	1	/***
	2	This file is part of PulseAudio.
	3
	4	Copyright 2004-2008 Lennart Poettering
	5
	6	PulseAudio is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU Lesser General Public License as published
	8	by the Free Software Foundation; either version 2.1 of the License,
	9	or (at your option) any later version.
	10
	11	PulseAudio is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	General Public License for more details.
	15
	16	You should have received a copy of the GNU Lesser General Public License
	17	along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
	18	***/
	19
	20	#ifdef HAVE_CONFIG_H
	21	#include <config.h>
	22	#endif
	23
	24	#include <stdlib.h>
	25	#include <stdio.h>
	26	#include <errno.h>
	27	#include <unistd.h>
	28
	29	#include <pulse/rtclock.h>
	30	#include <pulse/timeval.h>
	31	#include <pulse/xmalloc.h>
	32
	33	#include <pulsecore/i18n.h>
	34	#include <pulsecore/macro.h>
	35	#include <pulsecore/sink.h>
	36	#include <pulsecore/module.h>
	37	#include <pulsecore/core-util.h>
	38	#include <pulsecore/modargs.h>
	39	#include <pulsecore/log.h>
	40	#include <pulsecore/thread.h>
	41	#include <pulsecore/thread-mq.h>
	42	#include <pulsecore/rtpoll.h>
	43
	44	#include <SLES/OpenSLES.h>
	45
	46	#include "module-sles-sink-symdef.h"
	47
	48	#ifdef USE_ANDROID_SIMPLE_BUFFER_QUEUE
1c285bb8	49	#include <SLES/OpenSLES_Android.h>
	50	#define DATALOCATOR_BUFFERQUEUE SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
	51	#define IID_BUFFERQUEUE SL_IID_ANDROIDSIMPLEBUFFERQUEUE
	52	#define BufferQueueItf SLAndroidSimpleBufferQueueItf
	53	#define BufferQueueState SLAndroidSimpleBufferQueueState
	54	#define IID_BUFFERQUEUE_USED SL_IID_ANDROIDSIMPLEBUFFERQUEUE
	55	#define INDEX index
674a9bc3	56	#else
1c285bb8	57	#define DATALOCATOR_BUFFERQUEUE SL_DATALOCATOR_BUFFERQUEUE
	58	#define IID_BUFFERQUEUE SL_IID_BUFFERQUEUE
	59	#define BufferQueueItf SLBufferQueueItf
	60	#define BufferQueueState SLBufferQueueState
	61	#define IID_BUFFERQUEUE_USED IID_BUFFERQUEUE
	62	#define INDEX playIndex
674a9bc3	63	#endif
	64
	65	#define checkResult(r) do { \
	66	if ((r) != SL_RESULT_SUCCESS) { \
	67	if ((r) == SL_RESULT_PARAMETER_INVALID) fprintf(stderr, "error SL_RESULT_PARAMETER_INVALID at %s:%d\n", __FILE__, __LINE__); \
	68	else if ((r) == SL_RESULT_PRECONDITIONS_VIOLATED ) fprintf(stderr, "error SL_RESULT_PRECONDITIONS_VIOLATED at %s:%d\n", __FILE__, __LINE__); \
	69	else fprintf(stderr, "error %d at %s:%d\n", (int) r, __FILE__, __LINE__); \
	70	} \
	71	} while (0)
	72	typedef struct {
	73	short left;
	74	short right;
	75	} frame_t;
	76
	77	PA_MODULE_AUTHOR("Lennart Poettering, Nathan Martynov");
	78	PA_MODULE_DESCRIPTION("Android OpenSL ES sink");
	79	PA_MODULE_VERSION(PACKAGE_VERSION);
	80	PA_MODULE_LOAD_ONCE(false);
	81	PA_MODULE_USAGE(
	82	"sink_name=<name for the sink> "
1c285bb8	83	"sink_properties=<properties for the sink> "
1c285bb8	84	"rate=<sampling rate> ");
674a9bc3	85
	86	#define DEFAULT_SINK_NAME "OpenSL ES sink"
	87	#define BLOCK_USEC (PA_USEC_PER_SEC * 2)
	88
	89	struct userdata {
	90	pa_core *core;
	91	pa_module *module;
	92	pa_sink *sink;
	93
	94	pa_thread *thread;
	95	pa_thread_mq thread_mq;
	96	pa_rtpoll *rtpoll;
	97
	98	pa_usec_t block_usec;
	99	pa_usec_t timestamp;
	100
	101	pa_memchunk memchunk;
	102
	103	SLObjectItf engineObject;
	104	SLEngineItf engineEngine;
	105
	106	// output mix interfaces
	107	SLObjectItf outputMixObject;
	108
	109	// buffer queue player interfaces
	110	SLObjectItf bqPlayerObject;
	111	SLPlayItf bqPlayerPlay;
	112	BufferQueueItf bqPlayerBufferQueue;
	113	};
	114
	115	static const char* const valid_modargs[] = {
	116	"sink_name",
	117	"sink_properties",
1c285bb8	118	"rate",
674a9bc3	119	NULL
	120	};
	121
	122	static int sink_process_msg(
	123	pa_msgobject *o,
	124	int code,
	125	void *data,
	126	int64_t offset,
	127	pa_memchunk *chunk) {
	128
	129	struct userdata *u = PA_SINK(o)->userdata;
	130
	131	switch (code) {
	132	case PA_SINK_MESSAGE_SET_STATE:
	133
	134	if (pa_sink_get_state(u->sink) == PA_SINK_SUSPENDED \|\| pa_sink_get_state(u->sink) == PA_SINK_INIT) {
	135	if (PA_PTR_TO_UINT(data) == PA_SINK_RUNNING \|\| PA_PTR_TO_UINT(data) == PA_SINK_IDLE)
	136	u->timestamp = pa_rtclock_now();
	137	}
	138
	139	break;
	140
	141	case PA_SINK_MESSAGE_GET_LATENCY: {
	142	pa_usec_t now;
	143
	144	now = pa_rtclock_now();
	145	((pa_usec_t) data) = u->timestamp > now ? u->timestamp - now : 0ULL;
	146
	147	return 0;
	148	}
	149	}
	150
	151	return pa_sink_process_msg(o, code, data, offset, chunk);
	152	}
	153
	154	static void sink_update_requested_latency_cb(pa_sink *s) {
	155	struct userdata *u;
	156	size_t nbytes;
	157
	158	pa_sink_assert_ref(s);
	159	pa_assert_se(u = s->userdata);
	160
	161	u->block_usec = pa_sink_get_requested_latency_within_thread(s);
	162
	163	if (u->block_usec == (pa_usec_t) -1)
	164	u->block_usec = s->thread_info.max_latency;
	165
	166	nbytes = pa_usec_to_bytes(u->block_usec, &s->sample_spec);
	167	pa_sink_set_max_rewind_within_thread(s, nbytes);
	168	pa_sink_set_max_request_within_thread(s, nbytes);
	169	}
	170
1c285bb8	171	static int pa_init_sles_player(struct userdata *s, SLint32 sl_rate)
674a9bc3	172	{
1c285bb8	173	if (s == NULL) return -1;
674a9bc3	174	SLresult result;
	175
	176	// create engine
	177	result = slCreateEngine(&(s->engineObject), 0, NULL, 0, NULL, NULL); checkResult(result);
	178	result = (*s->engineObject)->Realize(s->engineObject, SL_BOOLEAN_FALSE); checkResult(result);
	179
	180	result = (*s->engineObject)->GetInterface(s->engineObject, SL_IID_ENGINE, &(s->engineEngine)); checkResult(result);
	181
	182	// create output mix
	183	result = (*s->engineEngine)->CreateOutputMix(s->engineEngine, &(s->outputMixObject), 0, NULL, NULL); checkResult(result);
	184	result = (*s->outputMixObject)->Realize(s->outputMixObject, SL_BOOLEAN_FALSE); checkResult(result);
	185
	186	// create audio player
	187
	188	SLDataLocator_OutputMix locator_outputmix;
	189	locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
	190	locator_outputmix.outputMix = s->outputMixObject;
	191
	192	SLDataLocator_BufferQueue locator_bufferqueue;
	193	locator_bufferqueue.locatorType = DATALOCATOR_BUFFERQUEUE;
	194	locator_bufferqueue.numBuffers = 50;
	195
1c285bb8	196	if (sl_rate < 0) {
	197	pa_log("Incompatible sample rate");
	198	return -1;
	199	}
	200
674a9bc3	201	SLDataFormat_PCM pcm;
	202	pcm.formatType = SL_DATAFORMAT_PCM;
	203	pcm.numChannels = 2;
1c285bb8	204	pcm.samplesPerSec = sl_rate;
674a9bc3	205	pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
	206	pcm.containerSize = 16;
	207	pcm.channelMask = SL_SPEAKER_FRONT_LEFT \| SL_SPEAKER_FRONT_RIGHT;
	208	pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
	209
	210	SLDataSource audiosrc;
	211	audiosrc.pLocator = &locator_bufferqueue;
	212	audiosrc.pFormat = &pcm;
	213
	214	SLDataSink audiosnk;
	215	audiosnk.pLocator = &locator_outputmix;
	216	audiosnk.pFormat = NULL;
	217
	218	SLInterfaceID ids[1] = {IID_BUFFERQUEUE};
	219	SLboolean flags[1] = {SL_BOOLEAN_TRUE};
	220	result = (*s->engineEngine)->CreateAudioPlayer(s->engineEngine, &s->bqPlayerObject, &audiosrc, &audiosnk, 1, ids, flags); checkResult(result);
	221	result = (*s->bqPlayerObject)->Realize(s->bqPlayerObject, SL_BOOLEAN_FALSE); checkResult(result);
	222
	223	result = (*s->bqPlayerObject)->GetInterface(s->bqPlayerObject, SL_IID_PLAY, &s->bqPlayerPlay); checkResult(result);
	224	result = (*s->bqPlayerObject)->GetInterface(s->bqPlayerObject, IID_BUFFERQUEUE_USED, &s->bqPlayerBufferQueue); checkResult(result);
	225
	226	result = (*s->bqPlayerPlay)->SetPlayState(s->bqPlayerPlay, SL_PLAYSTATE_PLAYING); checkResult(result);
1c285bb8	227	return 0;
674a9bc3	228	}
674a9bc3	229
1c285bb8	230	static void pa_destroy_sles_player(struct userdata *s){
674a9bc3	231	if (s == NULL) return;
	232	(*s->bqPlayerPlay)->SetPlayState(s->bqPlayerPlay, SL_PLAYSTATE_STOPPED);
	233	(*s->bqPlayerObject)->Destroy(s->bqPlayerObject);
	234	(*s->outputMixObject)->Destroy(s->outputMixObject);
	235	(*s->engineObject)->Destroy(s->engineObject);
	236	}
	237
	238	static void process_render(struct userdata *u, pa_usec_t now) {
	239	size_t ate = 0;
	240
	241	pa_assert(u);
	242
	243	/* This is the configured latency. Sink inputs connected to us
	244	might not have a single frame more than the maxrequest value
	245	queued. Hence: at maximum read this many bytes from the sink
	246	inputs. */
	247
	248	/* Fill the buffer up the latency size */
	249	while (u->timestamp < now + u->block_usec) {
	250	void *p;
	251
	252	pa_sink_render(u->sink, u->sink->thread_info.max_request, &u->memchunk);
	253	p = pa_memblock_acquire(u->memchunk.memblock);
	254	(u->bqPlayerBufferQueue)->Enqueue(u->bqPlayerBufferQueue, (uint8_t) p + u->memchunk.index, u->memchunk.length);
	255	pa_memblock_release(u->memchunk.memblock);
	256
674a9bc3	257	u->timestamp += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec);
674a9bc3	258	ate += u->memchunk.length;
1c285bb8	259	if (ate >= u->sink->thread_info.max_request) break;
674a9bc3	260	}
674a9bc3	261	}
	262
	263	static void thread_func(void *userdata) {
	264	struct userdata *u = userdata;
	265
	266	pa_assert(u);
	267
	268	pa_log_debug("Thread starting up");
	269
	270	pa_thread_mq_install(&u->thread_mq);
	271
	272	u->timestamp = pa_rtclock_now();
	273
	274	for (;;) {
	275	pa_usec_t now = 0;
	276	int ret;
	277
	278	if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
	279	now = pa_rtclock_now();
	280
	281	if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
	282	pa_sink_process_rewind(u->sink, 0);
	283
	284	/* Render some data and drop it immediately */
	285	if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
	286	if (u->timestamp <= now)
	287	process_render(u, now);
	288
	289	pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
	290	} else
	291	pa_rtpoll_set_timer_disabled(u->rtpoll);
	292
	293	/* Hmm, nothing to do. Let's sleep */
	294	if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
	295	goto fail;
	296
	297	if (ret == 0)
	298	goto finish;
	299	}
	300
	301	fail:
	302	/* If this was no regular exit from the loop we have to continue
	303	* processing messages until we received PA_MESSAGE_SHUTDOWN */
	304	pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
	305	pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
	306
	307	finish:
	308	pa_log_debug("Thread shutting down");
	309	}
1c285bb8	310
	311	static SLint32 PA2SLrate(int32_t rate){
	312	if (!(rate >= 8000 && rate <= 192000)) return -1;
	313	switch(rate){
	314	case 8000:
	315	return SL_SAMPLINGRATE_8;
	316	case 11025:
	317	return SL_SAMPLINGRATE_11_025;
	318	case 12000:
	319	return SL_SAMPLINGRATE_12;
	320	case 16000:
	321	return SL_SAMPLINGRATE_16;
	322	case 22050:
	323	return SL_SAMPLINGRATE_22_05;
	324	case 24000:
	325	return SL_SAMPLINGRATE_24;
	326	case 32000:
	327	return SL_SAMPLINGRATE_32;
	328	case 44100:
	329	return SL_SAMPLINGRATE_44_1;
	330	case 48000:
	331	return SL_SAMPLINGRATE_48;
	332	case 64000:
	333	return SL_SAMPLINGRATE_64;
	334	case 88200:
	335	return SL_SAMPLINGRATE_88_2;
	336	case 96000:
	337	return SL_SAMPLINGRATE_96;
	338	case 192000:
	339	return SL_SAMPLINGRATE_192;
	340	default:
	341	return -1;
	342	}
	343	}
674a9bc3	344
	345	int pa__init(pa_module*m) {
	346	struct userdata *u = NULL;
	347	pa_sample_spec ss;
	348	pa_channel_map map;
	349	pa_modargs *ma = NULL;
	350	pa_sink_new_data data;
	351	size_t nbytes;
	352
	353	pa_assert(m);
	354
	355	if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
	356	pa_log("Failed to parse module arguments.");
	357	goto fail;
	358	}
	359
	360	// High rate causes glitches on some devices, this is needed to prevent it
1c285bb8	361	//ss.rate = 32000;
	362	//ss.channels = 2;
	363	//ss.format = PA_SAMPLE_S16LE;
	364
	365	//OK. That will allow users to define sampling rate under his responsibility
	366	ss = m->core->default_sample_spec;
674a9bc3	367	map = m->core->default_channel_map;
1c285bb8	368	if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
	369	pa_log("Invalid sample format specification or channel map");
	370	goto fail;
	371	}
674a9bc3	372
1c285bb8	373	//Needed. Don't touch
	374	ss.channels = 2;
	375	ss.format = PA_SAMPLE_S16LE;
	376	int forceFormat = atoi(getenv("PROPERTY_OUTPUT_SAMPLE_RATE"));
	377	if (forceFormat >= 8000 && forceFormat <= 192000)
	378	ss.rate = forceFormat;
	379
674a9bc3	380	m->userdata = u = pa_xnew0(struct userdata, 1);
	381	u->core = m->core;
	382	u->module = m;
	383	u->rtpoll = pa_rtpoll_new();
	384	pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
	385
1c285bb8	386	if (pa_init_sles_player(u, PA2SLrate(ss.rate)) < 0)
1c285bb8	387	goto fail;
674a9bc3	388	int buff[2] = {0, 0};
	389	(*u->bqPlayerBufferQueue)->Enqueue(u->bqPlayerBufferQueue, buff, 1);
	390
	391	pa_sink_new_data_init(&data);
	392	data.driver = __FILE__;
	393	data.module = m;
	394	pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
	395	pa_sink_new_data_set_sample_spec(&data, &ss);
	396	pa_sink_new_data_set_channel_map(&data, &map);
1c285bb8	397	pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, _("OpenSL ES Output"));
674a9bc3	398	pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "abstract");
	399
	400	if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
	401	pa_log("Invalid properties");
	402	pa_sink_new_data_done(&data);
	403	goto fail;
	404	}
	405
	406	u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY\|PA_SINK_DYNAMIC_LATENCY);
	407	pa_sink_new_data_done(&data);
	408
	409	if (!u->sink) {
	410	pa_log("Failed to create sink object.");
	411	goto fail;
	412	}
	413
	414	u->sink->parent.process_msg = sink_process_msg;
	415	u->sink->update_requested_latency = sink_update_requested_latency_cb;
	416	u->sink->userdata = u;
	417
	418	pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
	419	pa_sink_set_rtpoll(u->sink, u->rtpoll);
	420
	421	u->block_usec = BLOCK_USEC;
	422	nbytes = pa_usec_to_bytes(u->block_usec, &u->sink->sample_spec);
	423	pa_sink_set_max_rewind(u->sink, nbytes);
	424	pa_sink_set_max_request(u->sink, nbytes);
	425
1c285bb8	426	if (!(u->thread = pa_thread_new("sles-sink", thread_func, u))) {
674a9bc3	427	pa_log("Failed to create thread.");
	428	goto fail;
	429	}
	430
	431	pa_sink_set_latency_range(u->sink, 0, BLOCK_USEC);
	432
	433	pa_sink_put(u->sink);
	434
	435	pa_modargs_free(ma);
	436
	437	return 0;
	438
	439	fail:
	440	if (ma)
	441	pa_modargs_free(ma);
	442
	443	pa__done(m);
	444
	445	return -1;
	446	}
	447
	448	int pa__get_n_used(pa_module *m) {
	449	struct userdata *u;
	450
	451	pa_assert(m);
	452	pa_assert_se(u = m->userdata);
	453
	454	return pa_sink_linked_by(u->sink);
	455	}
	456
	457	void pa__done(pa_module*m) {
	458	struct userdata *u;
	459
	460	pa_assert(m);
	461
	462	if (!(u = m->userdata))
	463	return;
	464
	465	if (u->sink)
	466	pa_sink_unlink(u->sink);
	467
	468	if (u->thread) {
	469	pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
	470	pa_thread_free(u->thread);
	471	}
	472
	473	pa_thread_mq_done(&u->thread_mq);
	474
	475	if (u->sink)
	476	pa_sink_unref(u->sink);
	477
	478	if (u->rtpoll)
	479	pa_rtpoll_free(u->rtpoll);
	480
	481	pa_xfree(u);
	482	}