31 lines
898 B
C
31 lines
898 B
C
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/*
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* Copyright (c) 2014 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 COMMON_AUDIO_FIR_FILTER_H_
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#define COMMON_AUDIO_FIR_FILTER_H_
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#include <string.h>
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namespace webrtc {
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// Finite Impulse Response filter using floating-point arithmetic.
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class FIRFilter {
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public:
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virtual ~FIRFilter() {}
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// Filters the |in| data supplied.
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// |out| must be previously allocated and it must be at least of |length|.
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virtual void Filter(const float* in, size_t length, float* out) = 0;
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};
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} // namespace webrtc
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#endif // COMMON_AUDIO_FIR_FILTER_H_
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