1 files changed, 54 insertions, 0 deletions
diff --git a/src/3rdparty/resonance-audio/resonance_audio/dsp/sh_hrir_creator.h b/src/3rdparty/resonance-audio/resonance_audio/dsp/sh_hrir_creator.h
new file mode 100644
index 000000000..5a11926f5
--- /dev/null
+++ b/src/3rdparty/resonance-audio/resonance_audio/dsp/sh_hrir_creator.h
@@ -0,0 +1,54 @@
+/*
+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_SH_HRIR_CREATOR_H_
+#define RESONANCE_AUDIO_DSP_SH_HRIR_CREATOR_H_
+
+#include "base/audio_buffer.h"
+#include "dsp/resampler.h"
+#include "utils/wav.h"
+
+namespace vraudio {
+
+// Creates a multichannel audio buffer of Spherical Harmonic-encoded Head
+// Related Impulse Responses (SH HRIRs) from Wav SH HRIR assets. It also
+// checks if the channel count of the SH HRIR file is correct and resamples the
+// SH HRIRs if necessary to match the system (target) sampling rate.
+//
+// @param wav |Wav| instance that contains SH HRIRs.
+// @param target_sample_rate_hz Target sampling rate in Hertz.
+// @param resampler Pointer to a resampler used to convert HRIRs to the system
+// rate,
+//     (This resampler's internal state will be reset on each function call).
+// @return Unique pointer to |AudioBuffer| where the SH HRIRs will be written.
+std::unique_ptr<AudioBuffer> CreateShHrirsFromWav(const Wav& wav,
+                                                  int target_sample_rate_hz,
+                                                  Resampler* resampler);
+
+// Creates a SH HRIR multichannel audio buffer from assets.
+//
+// @param filename Name of the Wav file that contains SH HRIRs.
+// @param target_sample_rate_hz Target sampling rate in Hertz.
+// @param resampler Pointer to a resampler used to convert HRIRs to the system
+// rate.
+// @return Unique pointer to |AudioBuffer| where the SH HRIRs will be written.
+std::unique_ptr<AudioBuffer> CreateShHrirsFromAssets(
+    const std::string& filename, int target_sample_rate_hz,
+    Resampler* resampler);
+
+}  // namespace vraudio
+
+#endif  // RESONANCE_AUDIO_DSP_SH_HRIR_CREATOR_H_