/* * Copyright (C) 2010 Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_HRTF_KERNEL_H_ #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_HRTF_KERNEL_H_ #include <memory> #include <utility> #include "base/memory/ptr_util.h" #include "third_party/blink/renderer/platform/audio/fft_frame.h" #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" #include "third_party/blink/renderer/platform/wtf/vector.h" namespace blink { class AudioChannel; // HRTF stands for Head-Related Transfer Function. // HRTFKernel is a frequency-domain representation of an impulse-response used // as part of the spatialized panning system. For a given azimuth / elevation // angle there will be one HRTFKernel for the left ear transfer function, and // one for the right ear. The leading delay (average group delay) for each // impulse response is extracted: // m_fftFrame is the frequency-domain representation of the impulse // response with the delay removed // m_frameDelay is the leading delay of the original impulse response. class HRTFKernel { … }; HRTFKernelList; } // namespace blink #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_HRTF_KERNEL_H_