1 | /* |
2 | Copyright 2018 Google Inc. All Rights Reserved. |
3 | |
4 | Licensed under the Apache License, Version 2.0 (the "License"); |
5 | you may not use this file except in compliance with the License. |
6 | You may obtain a copy of the License at |
7 | |
8 | http://www.apache.org/licenses/LICENSE-2.0 |
9 | |
10 | Unless required by applicable law or agreed to in writing, software |
11 | distributed under the License is distributed on an "AS-IS" BASIS, |
12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | See the License for the specific language governing permissions and |
14 | limitations 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 | |
22 | namespace 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. |
30 | void 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 | |