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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
#include <pthread.h>
#ifndef _Included_org_drrickorang_loopback_sles
#define _Included_org_drrickorang_loopback_sles
//struct audio_utils_fifo;
#ifdef __cplusplus
extern "C" {
#endif
#include <audio_utils/fifo.h>
typedef struct {
SLuint32 rxBufCount; // -r#
SLuint32 txBufCount; // -t#
SLuint32 bufSizeInFrames; // -f#
SLuint32 channels; // -c#
SLuint32 sampleRate; // -s#
SLuint32 exitAfterSeconds; // -e#
SLuint32 freeBufCount; // calculated
SLuint32 bufSizeInBytes; // calculated
int injectImpulse; // -i#i
// Storage area for the buffer queues
char **rxBuffers;
char **txBuffers;
char **freeBuffers;
// Buffer indices
SLuint32 rxFront; // oldest recording
SLuint32 rxRear; // next to be recorded
SLuint32 txFront; // oldest playing
SLuint32 txRear; // next to be played
SLuint32 freeFront; // oldest free
SLuint32 freeRear; // next to be freed
struct audio_utils_fifo fifo; //(*)
struct audio_utils_fifo fifo2;
short *fifo2Buffer;
short *fifoBuffer;
SLAndroidSimpleBufferQueueItf recorderBufferQueue;
SLBufferQueueItf playerBufferQueue;
pthread_mutex_t mutex;// = PTHREAD_MUTEX_INITIALIZER;
//other things that belong here
SLObjectItf playerObject;
SLObjectItf recorderObject;
SLObjectItf outputmixObject;
SLObjectItf engineObject;
} sles_data;
enum {
SLES_SUCCESS = 0,
SLES_FAIL = 1,
} SLES_STATUS_ENUM;
int slesInit( sles_data ** ppSles, int samplingRate, int frameCount);
//note the double pointer to properly free the memory of the structure
int slesDestroy( sles_data ** ppSles);
///full
int slesFull(sles_data *pSles);
int slesCreateServer(sles_data *pSles, int samplingRate, int frameCount);
int slesProcessNext(sles_data *pSles, double *pSamples, long maxSamples);
int slesDestroyServer(sles_data *pSles);
#ifdef __cplusplus
}
#endif
#endif //_Included_org_drrickorang_loopback_sles
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