stereo_panner.h

/*
Copyright 2018 Google Inc. All Rights Reserved.
 
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
 
    http://www.apache.org/licenses/LICENSE-2.0
 
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS-IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
 
#ifndef RESONANCE_AUDIO_DSP_STEREO_PANNER_H_
#define RESONANCE_AUDIO_DSP_STEREO_PANNER_H_
 
#include <vector>
 
#include "base/spherical_angle.h"
 
namespace vraudio {
 
// Computes a pair of stereo panner gains based on the |source_direction|.
//
// @param source_direction Azimuth and elevation of the sound source.
// @param stereo_gains A pointer to vector of stereo loudspeaker gains.
void CalculateStereoPanGains(const SphericalAngle& source_direction,
                             std::vector<float>* stereo_gains);
 
}  // namespace vraudio
 
#endif  // RESONANCE_AUDIO_DSP_STEREO_PANNER_H_