60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*
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* Copyright (c) 2017 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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#include "common_audio/fir_filter_factory.h"
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#include "common_audio/fir_filter_c.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/system/arch.h"
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#if defined(WEBRTC_ARCH_ARM_FAMILY) && defined(WEBRTC_HAS_NEON)
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#include "common_audio/fir_filter_neon.h"
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#elif defined(WEBRTC_ARCH_X86_FAMILY)
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#include "common_audio/fir_filter_sse.h"
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#include "system_wrappers/include/cpu_features_wrapper.h" // kSSE2, WebRtc_G...
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#endif
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namespace webrtc {
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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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if (!coefficients || coefficients_length <= 0 || max_input_length <= 0) {
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RTC_NOTREACHED();
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return nullptr;
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}
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FIRFilter* filter = nullptr;
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// If we know the minimum architecture at compile time, avoid CPU detection.
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#if defined(WEBRTC_ARCH_X86_FAMILY)
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#if defined(__SSE2__)
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filter =
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new FIRFilterSSE2(coefficients, coefficients_length, max_input_length);
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#else
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// x86 CPU detection required.
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if (WebRtc_GetCPUInfo(kSSE2)) {
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filter =
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new FIRFilterSSE2(coefficients, coefficients_length, max_input_length);
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} else {
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filter = new FIRFilterC(coefficients, coefficients_length);
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}
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#endif
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#elif defined(WEBRTC_HAS_NEON)
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filter =
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new FIRFilterNEON(coefficients, coefficients_length, max_input_length);
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#else
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filter = new FIRFilterC(coefficients, coefficients_length);
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#endif
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return filter;
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}
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} // namespace webrtc
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