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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/FFTFrame.h" | 29 #include "platform/audio/FFTFrame.h" |
| 30 #include <complex> |
| 31 #include <memory> |
30 #include "platform/audio/VectorMath.h" | 32 #include "platform/audio/VectorMath.h" |
31 #include "wtf/MathExtras.h" | 33 #include "wtf/MathExtras.h" |
32 #include "wtf/PtrUtil.h" | 34 #include "wtf/PtrUtil.h" |
33 #include <complex> | |
34 #include <memory> | |
35 | 35 |
36 #ifndef NDEBUG | 36 #ifndef NDEBUG |
37 #include <stdio.h> | 37 #include <stdio.h> |
38 #endif | 38 #endif |
39 | 39 |
40 namespace blink { | 40 namespace blink { |
41 | 41 |
42 void FFTFrame::doPaddedFFT(const float* data, size_t dataSize) { | 42 void FFTFrame::doPaddedFFT(const float* data, size_t dataSize) { |
43 // Zero-pad the impulse response | 43 // Zero-pad the impulse response |
44 AudioFloatArray paddedResponse(fftSize()); // zero-initialized | 44 AudioFloatArray paddedResponse(fftSize()); // zero-initialized |
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263 float imag0 = imagP1[0]; | 263 float imag0 = imagP1[0]; |
264 | 264 |
265 VectorMath::zvmul(realP1, imagP1, realP2, imagP2, realP1, imagP1, halfSize); | 265 VectorMath::zvmul(realP1, imagP1, realP2, imagP2, realP1, imagP1, halfSize); |
266 | 266 |
267 // Multiply the packed DC/nyquist component | 267 // Multiply the packed DC/nyquist component |
268 realP1[0] = real0 * realP2[0]; | 268 realP1[0] = real0 * realP2[0]; |
269 imagP1[0] = imag0 * imagP2[0]; | 269 imagP1[0] = imag0 * imagP2[0]; |
270 } | 270 } |
271 | 271 |
272 } // namespace blink | 272 } // namespace blink |
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