61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_AUDIO_PROCESSING_UTILITY_OOURA_FFT_H_
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#define MODULES_AUDIO_PROCESSING_UTILITY_OOURA_FFT_H_
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#include "rtc_base/system/arch.h"
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namespace webrtc {
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#if defined(WEBRTC_ARCH_X86_FAMILY)
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void cft1st_128_SSE2(float* a);
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void cftmdl_128_SSE2(float* a);
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void rftfsub_128_SSE2(float* a);
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void rftbsub_128_SSE2(float* a);
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#endif
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#if defined(MIPS_FPU_LE)
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void cft1st_128_mips(float* a);
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void cftmdl_128_mips(float* a);
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void rftfsub_128_mips(float* a);
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void rftbsub_128_mips(float* a);
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#endif
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#if defined(WEBRTC_HAS_NEON)
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void cft1st_128_neon(float* a);
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void cftmdl_128_neon(float* a);
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void rftfsub_128_neon(float* a);
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void rftbsub_128_neon(float* a);
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#endif
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class OouraFft {
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public:
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OouraFft();
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~OouraFft();
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void Fft(float* a) const;
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void InverseFft(float* a) const;
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private:
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void cft1st_128(float* a) const;
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void cftmdl_128(float* a) const;
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void rftfsub_128(float* a) const;
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void rftbsub_128(float* a) const;
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void cftfsub_128(float* a) const;
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void cftbsub_128(float* a) const;
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void bitrv2_128(float* a) const;
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bool use_sse2_;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_UTILITY_OOURA_FFT_H_
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