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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}
82 lines
2.6 KiB
C++
82 lines
2.6 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 <vector>
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#include "api/array_view.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/random.h"
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#include "test/gtest.h"
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namespace webrtc {
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TEST(EchoCancellerTestTools, FloatDelayBuffer) {
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constexpr size_t kDelay = 10;
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DelayBuffer<float> delay_buffer(kDelay);
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std::vector<float> v(1000, 0.f);
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for (size_t k = 0; k < v.size(); ++k) {
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v[k] = k;
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}
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std::vector<float> v_delayed = v;
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constexpr size_t kBlockSize = 50;
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for (size_t k = 0; k < rtc::CheckedDivExact(v.size(), kBlockSize); ++k) {
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delay_buffer.Delay(
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rtc::ArrayView<const float>(&v[k * kBlockSize], kBlockSize),
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rtc::ArrayView<float>(&v_delayed[k * kBlockSize], kBlockSize));
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}
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for (size_t k = kDelay; k < v.size(); ++k) {
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EXPECT_EQ(v[k - kDelay], v_delayed[k]);
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}
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}
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TEST(EchoCancellerTestTools, IntDelayBuffer) {
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constexpr size_t kDelay = 10;
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DelayBuffer<int> delay_buffer(kDelay);
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std::vector<int> v(1000, 0);
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for (size_t k = 0; k < v.size(); ++k) {
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v[k] = k;
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}
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std::vector<int> v_delayed = v;
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const size_t kBlockSize = 50;
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for (size_t k = 0; k < rtc::CheckedDivExact(v.size(), kBlockSize); ++k) {
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delay_buffer.Delay(
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rtc::ArrayView<const int>(&v[k * kBlockSize], kBlockSize),
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rtc::ArrayView<int>(&v_delayed[k * kBlockSize], kBlockSize));
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}
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for (size_t k = kDelay; k < v.size(); ++k) {
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EXPECT_EQ(v[k - kDelay], v_delayed[k]);
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}
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}
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TEST(EchoCancellerTestTools, RandomizeSampleVector) {
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Random random_generator(42U);
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std::vector<float> v(50, 0.f);
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std::vector<float> v_ref = v;
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RandomizeSampleVector(&random_generator, v);
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EXPECT_NE(v, v_ref);
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v_ref = v;
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RandomizeSampleVector(&random_generator, v);
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EXPECT_NE(v, v_ref);
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}
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TEST(EchoCancellerTestTools, RandomizeSampleVectorWithAmplitude) {
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Random random_generator(42U);
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std::vector<float> v(50, 0.f);
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RandomizeSampleVector(&random_generator, v, 1000.f);
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EXPECT_GE(1000.f, *std::max_element(v.begin(), v.end()));
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EXPECT_LE(-1000.f, *std::min_element(v.begin(), v.end()));
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RandomizeSampleVector(&random_generator, v, 100.f);
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EXPECT_GE(100.f, *std::max_element(v.begin(), v.end()));
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EXPECT_LE(-100.f, *std::min_element(v.begin(), v.end()));
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}
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} // namespace webrtc
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