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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef _Included_org_drrickorang_loopback_sles
     18 #define _Included_org_drrickorang_loopback_sles
     19 
     20 #include <SLES/OpenSLES.h>
     21 #include <SLES/OpenSLES_Android.h>
     22 #include <pthread.h>
     23 #include <android/log.h>
     24 #include <jni.h>
     25 #include <stdbool.h>
     26 
     27 //struct audio_utils_fifo;
     28 #define SLES_PRINTF(...)  __android_log_print(ANDROID_LOG_INFO, "sles_jni", __VA_ARGS__);
     29 
     30 #include <audio_utils/fifo.h>
     31 
     32 #include "loopback_sles.h"
     33 
     34 typedef struct {
     35     int* buffer_period;
     36     struct timespec previous_time;
     37     struct timespec current_time;
     38     int buffer_count;
     39     int max_buffer_period;
     40 
     41     volatile int32_t captureRank;   // Set > 0 when the callback requests a systrace/bug report
     42 
     43     int measurement_count; // number of measurements which were actually recorded
     44     int64_t SDM; // sum of squares of deviations from the expected mean
     45     int64_t var; // variance in nanoseconds^2
     46 } bufferStats;
     47 
     48 //TODO fix this
     49 typedef struct {
     50     SLuint32 rxBufCount;     // -r#
     51     SLuint32 txBufCount;     // -t#
     52     SLuint32 bufSizeInFrames;  // -f#
     53     SLuint32 channels;       // -c#
     54     SLuint32 sampleRate; // -s#
     55     SLuint32 exitAfterSeconds; // -e#
     56     SLuint32 freeBufCount;   // calculated
     57     SLuint32 bufSizeInBytes; // calculated
     58     int injectImpulse; // -i#i
     59     size_t totalDiscardedInputFrames;   // total number of input frames discarded
     60     int ignoreFirstFrames;
     61 
     62     // Storage area for the buffer queues
     63     char **rxBuffers;
     64     char **txBuffers;
     65     char **freeBuffers;
     66 
     67     // Buffer indices
     68     SLuint32 rxFront;    // oldest recording
     69     SLuint32 rxRear;     // next to be recorded
     70     SLuint32 txFront;    // oldest playing
     71     SLuint32 txRear;     // next to be played
     72     SLuint32 freeFront;  // oldest free
     73     SLuint32 freeRear;   // next to be freed
     74 
     75     struct audio_utils_fifo fifo;   // jitter buffer between recorder and player callbacks,
     76                                     // to mitigate unpredictable phase difference between these,
     77                                     // or even concurrent callbacks on two CPU cores
     78     struct audio_utils_fifo fifo2;  // For sending data to java code (to plot it)
     79     short *fifo2Buffer;
     80     short *fifoBuffer;
     81     SLAndroidSimpleBufferQueueItf recorderBufferQueue;
     82     SLBufferQueueItf playerBufferQueue;
     83 
     84     //other things that belong here
     85     SLObjectItf playerObject;
     86     SLObjectItf recorderObject;
     87     SLObjectItf outputmixObject;
     88     SLObjectItf engineObject;
     89 
     90     bufferStats recorderBufferStats;
     91     bufferStats playerBufferStats;
     92 
     93     int testType;
     94     double frequency1;
     95     double bufferTestPhase1;
     96     int count;
     97     char* byteBufferPtr;
     98     int byteBufferLength;
     99 
    100     short* loopbackTone;
    101 
    102     callbackTimeStamps recorderTimeStamps;
    103     callbackTimeStamps playerTimeStamps;
    104     short expectedBufferPeriod;
    105 } sles_data;
    106 
    107 // how late in ms a callback must be to trigger a systrace/bugreport
    108 #define LATE_CALLBACK_CAPTURE_THRESHOLD 4
    109 #define LATE_CALLBACK_OUTLIER_THRESHOLD 1
    110 #define BUFFER_PERIOD_DISCARD 10
    111 #define BUFFER_PERIOD_DISCARD_FULL_DUPLEX_PARTNER 2
    112 
    113 #endif //_Included_org_drrickorang_loopback_sles
    114