/* Returns an array of seven floats.
ret[0] = num deltas
ret[1] = error code
ret[2] = duration
ret[3] = onset
ret[4] = offset
ret[5] = max peak
ret[6] = min peak
Error code = 1 for success, -1 for failure. */
JNIEXPORT jfloatArray JNICALL
Java_com_android_cts_verifier_audioquality_Native_overflowCheck(
JNIEnv *env, jobject obj,
jshortArray jpcm, jfloat sampleRate) {
float ret[7];
int numSamples = env->GetArrayLength(jpcm);
short *pcm = new short[numSamples];
env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);
float duration = -1.0;
int numDeltas = -1, onset = -1, offset = -1;
int maxPeak = 0, minPeak = 0;
int success = overflowCheck(pcm, numSamples, sampleRate,
&duration, &numDeltas, &onset, &offset, &maxPeak, &minPeak);
ret[0] = numDeltas;
ret[1] = success ? 1 : -1;
ret[2] = duration;
ret[3] = onset;
ret[4] = offset;
ret[5] = maxPeak;
ret[6] = minPeak;
jfloatArray ja = env->NewFloatArray(7);
env->SetFloatArrayRegion(ja, 0, 7, ret);
return ja;
}
bool RF_reciever::checkForMessages()
{
//looping tasks that need to be performed
overflowCheck();
if(!interruptIsRunning)
{
start();
}
if(convertPulses2Bits())
{
//have a valid message!
delay(500); //allow half a second for a few more bits to arrive before stopping the interrupt
stop(); //stop the interrupt from firing
return true; //message found so return true
}
return false; //no message found so return false
}
