overte-JulianGro/libraries/audio/src/AudioPan.cpp
2014-09-20 05:46:27 -07:00

52 lines
1.2 KiB
C++

//
// AudioPan.cpp
// hifi
//
// Created by Craig Hansen-Sturm on 9/10/14.
// Copyright 2014 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include <assert.h>
#include <math.h>
#include <SharedUtil.h>
#include "AudioRingBuffer.h"
#include "AudioFormat.h"
#include "AudioBuffer.h"
#include "AudioPan.h"
float32_t AudioPan::ONE_MINUS_EPSILON = 1.0f - EPSILON;
float32_t AudioPan::ZERO_PLUS_EPSILON = 0.0f + EPSILON;
float32_t AudioPan::ONE_HALF_MINUS_EPSILON = 0.5f - EPSILON;
float32_t AudioPan::ONE_HALF_PLUS_EPSILON = 0.5f + EPSILON;
AudioPan::AudioPan() {
initialize();
}
AudioPan::~AudioPan() {
finalize();
}
void AudioPan::initialize() {
setParameters(0.5f);
}
void AudioPan::finalize() {
}
void AudioPan::reset() {
initialize();
}
void AudioPan::setParameters(const float32_t pan) {
// pan ranges between 0.0 and 1.0f inclusive. 0.5f is midpoint between full left and full right
_pan = std::min(std::max(pan, 0.0f), 1.0f);
updateCoefficients();
}
void AudioPan::getParameters(float32_t& pan) {
pan = _pan;
}