// puts a buffer of size samples to the device
int android_AudioOut(OPENSL_STREAM *p, float *buffer,int size){
short *outBuffer;
int i, bufsamps, index;
if(p == NULL) return 0;
bufsamps = p->outBufSamples;
if(bufsamps == 0) return 0;
index = p->currentOutputIndex;
outBuffer = p->outputBuffer[p->currentOutputBuffer];
for(i=0; i < size; i++){
outBuffer[index++] = (short) (buffer[i]*CONV16BIT);
if (index >= p->outBufSamples) {
waitThreadLock(p->outlock);
(*p->bqPlayerBufferQueue)->Enqueue(p->bqPlayerBufferQueue,
outBuffer,bufsamps*sizeof(short));
p->currentOutputBuffer = (p->currentOutputBuffer ? 0 : 1);
index = 0;
outBuffer = p->outputBuffer[p->currentOutputBuffer];
}
}
p->currentOutputIndex = index;
p->time += (double) size/(p->sr*p->outchannels);
return i;
}
// puts a buffer of size samples to the device
int android_AudioOut(OPENSL_STREAM *p, float *buffer,int size, int millibel){
short *outBuffer;
int i, bufsamps = p->outBufSamples, index = p->currentOutputIndex;
SLresult result;
SLVolumeItf volumeItf = p->bqPlayerVolume;
if(p == NULL || bufsamps == 0) return 0;
outBuffer = p->outputBuffer[p->currentOutputBuffer];
if (NULL != volumeItf) {
result = (*volumeItf)->SetVolumeLevel(volumeItf, millibel);
if(SL_RESULT_SUCCESS != result) return 0;
}
for(i=0; i < size; i++){
outBuffer[index++] = (short) (buffer[i]*CONV16BIT);
if (index >= p->outBufSamples) {
waitThreadLock(p->outlock);
(*p->bqPlayerBufferQueue)->Enqueue(p->bqPlayerBufferQueue,
outBuffer,bufsamps*sizeof(short));
p->currentOutputBuffer = (p->currentOutputBuffer ? 0 : 1);
index = 0;
outBuffer = p->outputBuffer[p->currentOutputBuffer];
}
}
p->currentOutputIndex = index;
p->time += (double) size/(p->sr*p->outchannels);
return i;
}
// gets a buffer of size samples from the device
int android_AudioIn(OPENSL_STREAM *p, float *buffer, int size) {
short *inBuffer;
int i, bufsamps = p->inBufSamples, index = p->currentInputIndex;
if (p == NULL || bufsamps == 0) return 0;
inBuffer = p->inputBuffer[p->currentInputBuffer];
for (i = 0; i < size; i++) {
if (index >= bufsamps) {
waitThreadLock(p->inlock);
(*p->recorderBufferQueue)->Enqueue(p->recorderBufferQueue,
inBuffer, bufsamps * sizeof(short));
p->currentInputBuffer = (p->currentInputBuffer ? 0 : 1);
index = 0;
inBuffer = p->inputBuffer[p->currentInputBuffer];
}
buffer[i] = (float) inBuffer[index++] * CONVMYFLT;
}
p->currentInputIndex = index;
if (p->outchannels == 0) p->time += (double) size / (p->sr * p->inchannels);
return i;
}