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Diffstat (limited to 'src/3rdparty/resonance-audio/resonance_audio/ambisonics/stereo_from_soundfield_converter.h')
-rw-r--r-- | src/3rdparty/resonance-audio/resonance_audio/ambisonics/stereo_from_soundfield_converter.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/3rdparty/resonance-audio/resonance_audio/ambisonics/stereo_from_soundfield_converter.h b/src/3rdparty/resonance-audio/resonance_audio/ambisonics/stereo_from_soundfield_converter.h new file mode 100644 index 000000000..44d2144e7 --- /dev/null +++ b/src/3rdparty/resonance-audio/resonance_audio/ambisonics/stereo_from_soundfield_converter.h @@ -0,0 +1,35 @@ +/* +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_AMBISONICS_STEREO_FROM_SOUNDFIELD_CONVERTER_H_ +#define RESONANCE_AUDIO_AMBISONICS_STEREO_FROM_SOUNDFIELD_CONVERTER_H_ + +#include "base/audio_buffer.h" + +namespace vraudio { + +// Performs Ambisonic to stereo decode by performing Mid-Side (M-S) matrixing. +// Soundfield format assumed is Ambix (ACN/SN3D). Only first order channels +// are used for the stereo decode. +// +// @param soundfield_input Soundfield of arbitrary order. +// @param stereo_output Pointer to stereo output buffer. +void StereoFromSoundfield(const AudioBuffer& soundfield_input, + AudioBuffer* stereo_output); + +} // namespace vraudio + +#endif // RESONANCE_AUDIO_AMBISONICS_STEREO_FROM_SOUNDFIELD_CONVERTER_H_ |