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a4d873786f
This CL was generated by running git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \ grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \ grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \ grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \ grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \ | xargs clang-format -i ; git cl format Most of these changes are clang-format grouping and reordering includes differently. Bug: webrtc:9340 Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28505}
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/*
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* Copyright (c) 2013 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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// Modified from the Chromium original:
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// src/media/base/sinc_resampler.cc
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#include <arm_neon.h>
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#include "common_audio/resampler/sinc_resampler.h"
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namespace webrtc {
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float SincResampler::Convolve_NEON(const float* input_ptr,
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const float* k1,
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const float* k2,
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double kernel_interpolation_factor) {
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float32x4_t m_input;
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float32x4_t m_sums1 = vmovq_n_f32(0);
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float32x4_t m_sums2 = vmovq_n_f32(0);
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const float* upper = input_ptr + kKernelSize;
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for (; input_ptr < upper;) {
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m_input = vld1q_f32(input_ptr);
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input_ptr += 4;
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m_sums1 = vmlaq_f32(m_sums1, m_input, vld1q_f32(k1));
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k1 += 4;
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m_sums2 = vmlaq_f32(m_sums2, m_input, vld1q_f32(k2));
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k2 += 4;
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}
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// Linearly interpolate the two "convolutions".
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m_sums1 = vmlaq_f32(
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vmulq_f32(m_sums1, vmovq_n_f32(1.0 - kernel_interpolation_factor)),
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m_sums2, vmovq_n_f32(kernel_interpolation_factor));
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// Sum components together.
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float32x2_t m_half = vadd_f32(vget_high_f32(m_sums1), vget_low_f32(m_sums1));
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return vget_lane_f32(vpadd_f32(m_half, m_half), 0);
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}
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} // namespace webrtc
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