diff options
Diffstat (limited to 'third_party/libwebrtc/modules/audio_processing/aec3/subtractor_output.cc')
-rw-r--r-- | third_party/libwebrtc/modules/audio_processing/aec3/subtractor_output.cc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_processing/aec3/subtractor_output.cc b/third_party/libwebrtc/modules/audio_processing/aec3/subtractor_output.cc new file mode 100644 index 0000000000..ed80101f06 --- /dev/null +++ b/third_party/libwebrtc/modules/audio_processing/aec3/subtractor_output.cc @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "modules/audio_processing/aec3/subtractor_output.h" + +#include <numeric> + +namespace webrtc { + +SubtractorOutput::SubtractorOutput() = default; +SubtractorOutput::~SubtractorOutput() = default; + +void SubtractorOutput::Reset() { + s_refined.fill(0.f); + s_coarse.fill(0.f); + e_refined.fill(0.f); + e_coarse.fill(0.f); + E_refined.re.fill(0.f); + E_refined.im.fill(0.f); + E2_refined.fill(0.f); + E2_coarse.fill(0.f); + e2_refined = 0.f; + e2_coarse = 0.f; + s2_refined = 0.f; + s2_coarse = 0.f; + y2 = 0.f; +} + +void SubtractorOutput::ComputeMetrics(rtc::ArrayView<const float> y) { + const auto sum_of_squares = [](float a, float b) { return a + b * b; }; + y2 = std::accumulate(y.begin(), y.end(), 0.f, sum_of_squares); + e2_refined = + std::accumulate(e_refined.begin(), e_refined.end(), 0.f, sum_of_squares); + e2_coarse = + std::accumulate(e_coarse.begin(), e_coarse.end(), 0.f, sum_of_squares); + s2_refined = + std::accumulate(s_refined.begin(), s_refined.end(), 0.f, sum_of_squares); + s2_coarse = + std::accumulate(s_coarse.begin(), s_coarse.end(), 0.f, sum_of_squares); + + s_refined_max_abs = *std::max_element(s_refined.begin(), s_refined.end()); + s_refined_max_abs = + std::max(s_refined_max_abs, + -(*std::min_element(s_refined.begin(), s_refined.end()))); + + s_coarse_max_abs = *std::max_element(s_coarse.begin(), s_coarse.end()); + s_coarse_max_abs = std::max( + s_coarse_max_abs, -(*std::min_element(s_coarse.begin(), s_coarse.end()))); +} + +} // namespace webrtc |