1/*
2Copyright 2018 Google Inc. All Rights Reserved.
3
4Licensed under the Apache License, Version 2.0 (the "License");
5you may not use this file except in compliance with the License.
6You may obtain a copy of the License at
7
8 http://www.apache.org/licenses/LICENSE-2.0
9
10Unless required by applicable law or agreed to in writing, software
11distributed under the License is distributed on an "AS-IS" BASIS,
12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13See the License for the specific language governing permissions and
14limitations under the License.
15*/
16
17#ifndef RESONANCE_AUDIO_AMBISONICS_STEREO_FROM_SOUNDFIELD_CONVERTER_H_
18#define RESONANCE_AUDIO_AMBISONICS_STEREO_FROM_SOUNDFIELD_CONVERTER_H_
19
20#include "base/audio_buffer.h"
21
22namespace vraudio {
23
24// Performs Ambisonic to stereo decode by performing Mid-Side (M-S) matrixing.
25// Soundfield format assumed is Ambix (ACN/SN3D). Only first order channels
26// are used for the stereo decode.
27//
28// @param soundfield_input Soundfield of arbitrary order.
29// @param stereo_output Pointer to stereo output buffer.
30void StereoFromSoundfield(const AudioBuffer& soundfield_input,
31 AudioBuffer* stereo_output);
32
33} // namespace vraudio
34
35#endif // RESONANCE_AUDIO_AMBISONICS_STEREO_FROM_SOUNDFIELD_CONVERTER_H_
36

source code of qtmultimedia/src/3rdparty/resonance-audio/resonance_audio/ambisonics/stereo_from_soundfield_converter.h