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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| 11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
| 12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
| 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| 14 * its contributors may be used to endorse or promote products derived | 14 * its contributors may be used to endorse or promote products derived |
| 15 * from this software without specific prior written permission. | 15 * from this software without specific prior written permission. |
| 16 * | 16 * |
| 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 */ | 27 */ |
| 28 | 28 |
| 29 #include "platform/audio/HRTFElevation.h" |
| 30 #include <math.h> |
| 31 #include <algorithm> |
| 32 #include <memory> |
| 29 #include "platform/audio/AudioBus.h" | 33 #include "platform/audio/AudioBus.h" |
| 30 #include "platform/audio/HRTFElevation.h" | |
| 31 #include "platform/audio/HRTFPanner.h" | 34 #include "platform/audio/HRTFPanner.h" |
| 32 #include "wtf/PtrUtil.h" | 35 #include "wtf/PtrUtil.h" |
| 33 #include "wtf/ThreadingPrimitives.h" | 36 #include "wtf/ThreadingPrimitives.h" |
| 34 #include "wtf/text/StringHash.h" | 37 #include "wtf/text/StringHash.h" |
| 35 #include <algorithm> | |
| 36 #include <math.h> | |
| 37 #include <memory> | |
| 38 | 38 |
| 39 namespace blink { | 39 namespace blink { |
| 40 | 40 |
| 41 const unsigned HRTFElevation::AzimuthSpacing = 15; | 41 const unsigned HRTFElevation::AzimuthSpacing = 15; |
| 42 const unsigned HRTFElevation::NumberOfRawAzimuths = 360 / AzimuthSpacing; | 42 const unsigned HRTFElevation::NumberOfRawAzimuths = 360 / AzimuthSpacing; |
| 43 const unsigned HRTFElevation::InterpolationFactor = 8; | 43 const unsigned HRTFElevation::InterpolationFactor = 8; |
| 44 const unsigned HRTFElevation::NumberOfTotalAzimuths = | 44 const unsigned HRTFElevation::NumberOfTotalAzimuths = |
| 45 NumberOfRawAzimuths * InterpolationFactor; | 45 NumberOfRawAzimuths * InterpolationFactor; |
| 46 | 46 |
| 47 // Total number of components of an HRTF database. | 47 // Total number of components of an HRTF database. |
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| 375 double frameDelay2R = m_kernelListR->at(azimuthIndex2)->frameDelay(); | 375 double frameDelay2R = m_kernelListR->at(azimuthIndex2)->frameDelay(); |
| 376 | 376 |
| 377 // Linearly interpolate delays. | 377 // Linearly interpolate delays. |
| 378 frameDelayL = | 378 frameDelayL = |
| 379 (1.0 - azimuthBlend) * frameDelayL + azimuthBlend * frameDelay2L; | 379 (1.0 - azimuthBlend) * frameDelayL + azimuthBlend * frameDelay2L; |
| 380 frameDelayR = | 380 frameDelayR = |
| 381 (1.0 - azimuthBlend) * frameDelayR + azimuthBlend * frameDelay2R; | 381 (1.0 - azimuthBlend) * frameDelayR + azimuthBlend * frameDelay2R; |
| 382 } | 382 } |
| 383 | 383 |
| 384 } // namespace blink | 384 } // namespace blink |
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