// open the android audio device for input
OPENSL_STREAM *android_OpenRecDevice(char *name, int sr, int inchannels,
int bufferframes, int bits_per_sample)
{
OPENSL_STREAM *p;
p = (OPENSL_STREAM *) calloc(sizeof(OPENSL_STREAM),1);
memset(p, 0, sizeof(OPENSL_STREAM));
p->inchannels = inchannels;
p->sr = sr;
p->queue = Queue_New(TRUE, -1, -1);
p->buffersize = bufferframes;
p->bits_per_sample = bits_per_sample;
if ((p->bits_per_sample != 8) && (p->bits_per_sample != 16))
{
android_CloseRecDevice(p);
return NULL;
}
if(openSLCreateEngine(p) != SL_RESULT_SUCCESS)
{
android_CloseRecDevice(p);
return NULL;
}
if(openSLRecOpen(p) != SL_RESULT_SUCCESS)
{
android_CloseRecDevice(p);
return NULL;
}
return p;
}
/* Start thread for capture audio data */
void * startThreadInAudio(void * arg){
LOGI("Enter: startThreadInAudio\n");
mainData_t* mainData = (mainData_t*)arg;
SLresult res;
SLObjectItf sl;
/* Create OpenSL ES engine in thread-safe mode */
SLEngineOption EngineOption[] = {(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE};
res = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL);
if(res != SL_RESULT_SUCCESS){
LOGE("Exit: startThreadInAudio: Can't create OpenSL engine\n");
return 0;
}
/* Realizing the SL Engine in synchronous mode. */
res = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
if(res != SL_RESULT_SUCCESS){
LOGE("Exit: startThreadInAudio: Can't Realize OpenSL engine\n");
/* Shutdown OpenSL ES */
(*sl)->Destroy(sl);
return 0;
}
openSLRecOpen(mainData,sl);
/* Shutdown OpenSL ES */
(*sl)->Destroy(sl);
LOGI("Exit: startThreadInAudio: OK\n");
return 0;
}
// open the android audio device for input and/or output
OPENSL_STREAM *android_OpenAudioDevice(int sr, int inchannels, int outchannels, int bufferframes) {
OPENSL_STREAM *p;
p = (OPENSL_STREAM *) calloc(sizeof(OPENSL_STREAM), 1);
p->inchannels = inchannels;
p->outchannels = outchannels;
p->sr = sr;
p->inlock = createThreadLock();
p->outlock = createThreadLock();
if ((p->outBufSamples = bufferframes * outchannels) != 0) {
if ((p->outputBuffer[0] = (short *) calloc(p->outBufSamples, sizeof(short))) == NULL ||
(p->outputBuffer[1] = (short *) calloc(p->outBufSamples, sizeof(short))) == NULL) {
android_CloseAudioDevice(p);
return NULL;
}
}
if ((p->inBufSamples = bufferframes * inchannels) != 0) {
if ((p->inputBuffer[0] = (short *) calloc(p->inBufSamples, sizeof(short))) == NULL ||
(p->inputBuffer[1] = (short *) calloc(p->inBufSamples, sizeof(short))) == NULL) {
android_CloseAudioDevice(p);
return NULL;
}
}
p->currentInputIndex = 0;
p->currentOutputBuffer = 0;
p->currentInputIndex = p->inBufSamples;
p->currentInputBuffer = 0;
if (openSLCreateEngine(p) != SL_RESULT_SUCCESS) {
android_CloseAudioDevice(p);
return NULL;
}
if (openSLRecOpen(p) != SL_RESULT_SUCCESS) {
android_CloseAudioDevice(p);
return NULL;
}
if (openSLPlayOpen(p) != SL_RESULT_SUCCESS) {
android_CloseAudioDevice(p);
return NULL;
}
notifyThreadLock(p->outlock);
notifyThreadLock(p->inlock);
p->time = 0.;
return p;
}
