33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
/*
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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_FACTORY_H_
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#define COMMON_AUDIO_FIR_FILTER_FACTORY_H_
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#include <string.h>
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namespace webrtc {
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class FIRFilter;
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// Creates a filter with the given coefficients. All initial state values will
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// be zeros.
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// The length of the chunks fed to the filter should never be greater than
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// |max_input_length|. This is needed because, when vectorizing it is
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// necessary to concatenate the input after the state, and resizing this array
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// dynamically is expensive.
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FIRFilter* CreateFirFilter(const float* coefficients,
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size_t coefficients_length,
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size_t max_input_length);
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} // namespace webrtc
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#endif // COMMON_AUDIO_FIR_FILTER_FACTORY_H_
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