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3f17221d98
In this CL: - Render signal analyzer considers a frequency bin a narrow band (peak) if any channel exhibits narrowband (-peak) behavior. - The unit tests have to fill frames with noise because small inaccuracies in the FFT spectrum lead to consistent "narrow bands" despite spectrum being essentially flat. Bug: webrtc:10913 Change-Id: I8fa181412c0ee1beeacfda37ffef18251d5f0cd7 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151912 Reviewed-by: Per Åhgren <peah@webrtc.org> Commit-Queue: Sam Zackrisson <saza@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29176}
47 lines
1.5 KiB
C++
47 lines
1.5 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 "modules/audio_processing/test/echo_canceller_test_tools.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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void RandomizeSampleVector(Random* random_generator, rtc::ArrayView<float> v) {
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RandomizeSampleVector(random_generator, v,
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/*amplitude=*/32767.f);
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}
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void RandomizeSampleVector(Random* random_generator,
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rtc::ArrayView<float> v,
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float amplitude) {
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for (auto& v_k : v) {
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v_k = 2 * amplitude * random_generator->Rand<float>() - amplitude;
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}
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}
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template <typename T>
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void DelayBuffer<T>::Delay(rtc::ArrayView<const T> x,
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rtc::ArrayView<T> x_delayed) {
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RTC_DCHECK_EQ(x.size(), x_delayed.size());
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if (buffer_.empty()) {
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std::copy(x.begin(), x.end(), x_delayed.begin());
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} else {
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for (size_t k = 0; k < x.size(); ++k) {
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x_delayed[k] = buffer_[next_insert_index_];
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buffer_[next_insert_index_] = x[k];
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next_insert_index_ = (next_insert_index_ + 1) % buffer_.size();
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}
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}
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}
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template class DelayBuffer<float>;
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template class DelayBuffer<int>;
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} // namespace webrtc
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