C++ (Cpp) princargf Examples

Example #1

File: NativeTimescaleProcessor.cpp Project: ATSGIT/voicesmith

JNIEXPORT void JNICALL Java_de_jurihock_voicesmith_dsp_processors_NativeTimescaleProcessor_processFrame
(JNIEnv *env, jobject, jlong handle, jfloatArray _frame)
{
	Timescale* ts = (Timescale*)handle;

	if (ts->timescaleRatio == 1)
			return;

	float* frame = (float*)env->GetPrimitiveArrayCritical(_frame, 0);

	float re, im, abs;
	float nextPhaseA, nextPhaseS;
	float phaseDeltaA, phaseDeltaS;

	for (int i = 1; i < ts->fftSize; i++)
	{
		// Get source Re and Im parts
		re = frame[2 * i];
		im = frame[2 * i + 1];

		// Compute source phase
		nextPhaseA = atan2f(im, re);

		if (ts->timescaleRatio < 2)
		{
			// Compute phase deltas
			phaseDeltaA = princargf(nextPhaseA - (ts->prevPhaseA[i] + ts->omegaA[i]));
			phaseDeltaS = phaseDeltaA * ts->timescaleRatio;

			// Compute destination phase
			nextPhaseS = princargf((ts->prevPhaseS[i] + ts->omegaS[i]) + phaseDeltaS);

			// Save computed phase values
			ts->prevPhaseA[i] = nextPhaseA;
			ts->prevPhaseS[i] = nextPhaseS;
		}
		else
		{
			// Compute destination phase
			nextPhaseS = princargf(nextPhaseA * 2);
		}

		// Compute destination Re and Im parts
		abs = sqrtf(re * re + im * im);
		re = abs * cosf(nextPhaseS);
		im = abs * sinf(nextPhaseS);

		// Save new values
		frame[2 * i] = re;
		frame[2 * i + 1] = im;
	}

	env->ReleasePrimitiveArrayCritical(_frame, frame, 0);
}

Example #2

File: Math.cpp Project: hyunhapark/SingAppAndroid

JNIEXPORT jfloat JNICALL Java_com_rameon_sing_dsp_Math_princarg
  (JNIEnv *, jclass, jfloat phase)
{
	return princargf(phase);
}