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/**
* @file opensles/player.c OpenSLES audio driver -- playback
*
* Copyright (C) 2010 Creytiv.com
*/
#include <re.h>
#include <baresip.h>
#include <SLES/OpenSLES.h>
#include "SLES/OpenSLES_Android.h"
#include "opensles.h"
#define DEBUG_MODULE "opensles/player"
#define DEBUG_LEVEL 5
#include <re_dbg.h>
struct auplay_st {
struct auplay *ap; /* inheritance */
int16_t buf[160 * 2];
auplay_write_h *wh;
void *arg;
SLObjectItf outputMixObject;
SLObjectItf bqPlayerObject;
SLPlayItf bqPlayerPlay;
SLAndroidSimpleBufferQueueItf BufferQueue;
};
static void auplay_destructor(void *arg)
{
struct auplay_st *st = arg;
if (st->bqPlayerObject != NULL)
(*st->bqPlayerObject)->Destroy(st->bqPlayerObject);
if (st->outputMixObject != NULL)
(*st->outputMixObject)->Destroy(st->outputMixObject);
mem_deref(st->ap);
}
static void bqPlayerCallback(SLAndroidSimpleBufferQueueItf bq, void *context)
{
struct auplay_st *st = context;
st->wh((void *)st->buf, sizeof(st->buf), st->arg);
(*st->BufferQueue)->Enqueue(bq, st->buf, sizeof(st->buf));
}
static int createOutput(struct auplay_st *st)
{
const SLInterfaceID ids[1] = {SL_IID_ENVIRONMENTALREVERB};
const SLboolean req[1] = {SL_BOOLEAN_FALSE};
SLresult r;
r = (*engineEngine)->CreateOutputMix(engineEngine,
&st->outputMixObject, 1, ids, req);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
r = (*st->outputMixObject)->Realize(st->outputMixObject,
SL_BOOLEAN_FALSE);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
return 0;
}
static int createPlayer(struct auplay_st *st, struct auplay_prm *prm)
{
SLDataLocator_AndroidSimpleBufferQueue loc_bufq = {
SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, 2
};
SLDataFormat_PCM format_pcm = {SL_DATAFORMAT_PCM, prm->ch,
prm->srate * 1000,
SL_PCMSAMPLEFORMAT_FIXED_16,
SL_PCMSAMPLEFORMAT_FIXED_16,
SL_SPEAKER_FRONT_CENTER,
SL_BYTEORDER_LITTLEENDIAN};
SLDataSource audioSrc = {&loc_bufq, &format_pcm};
SLDataLocator_OutputMix loc_outmix = {
SL_DATALOCATOR_OUTPUTMIX, st->outputMixObject
};
SLDataSink audioSnk = {&loc_outmix, NULL};
const SLInterfaceID ids[2] = {SL_IID_BUFFERQUEUE, SL_IID_EFFECTSEND};
const SLboolean req[2] = {SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE};
SLresult r;
r = (*engineEngine)->CreateAudioPlayer(engineEngine,
&st->bqPlayerObject,
&audioSrc, &audioSnk,
ARRAY_SIZE(ids), ids, req);
if (SL_RESULT_SUCCESS != r) {
DEBUG_WARNING("CreateAudioPlayer error: r = %d\n", r);
return ENODEV;
}
r = (*st->bqPlayerObject)->Realize(st->bqPlayerObject,
SL_BOOLEAN_FALSE);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
r = (*st->bqPlayerObject)->GetInterface(st->bqPlayerObject,
SL_IID_PLAY,
&st->bqPlayerPlay);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
r = (*st->bqPlayerObject)->GetInterface(st->bqPlayerObject,
SL_IID_BUFFERQUEUE,
&st->BufferQueue);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
r = (*st->BufferQueue)->RegisterCallback(st->BufferQueue,
bqPlayerCallback, st);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
r = (*st->bqPlayerPlay)->SetPlayState(st->bqPlayerPlay,
SL_PLAYSTATE_PLAYING);
if (SL_RESULT_SUCCESS != r)
return ENODEV;
return 0;
}
int opensles_player_alloc(struct auplay_st **stp, struct auplay *ap,
struct auplay_prm *prm, const char *device,
auplay_write_h *wh, void *arg)
{
struct auplay_st *st;
int err;
(void)device;
if (!stp || !ap || !prm || !wh)
return EINVAL;
st = mem_zalloc(sizeof(*st), auplay_destructor);
if (!st)
return ENOMEM;
st->ap = mem_ref(ap);
st->wh = wh;
st->arg = arg;
err = createOutput(st);
if (err)
goto out;
err = createPlayer(st, prm);
if (err)
goto out;
/* kick-start the buffer callback */
bqPlayerCallback(st->BufferQueue, st);
out:
if (err)
mem_deref(st);
else
*stp = st;
return err;
}
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