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3ab308f869
This CL adds functionality for passing the information about the estimated delay to the echo remover in AEC3. The CL also adds information about how long ago the delay changed, and how long ago the delay estimate was updated. Bug: webrtc:8671 Change-Id: If274ffe0465eb550f3e186d0599c6dc6fef7f5e8 Reviewed-on: https://webrtc-review.googlesource.com/55261 Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22137}
107 lines
3.8 KiB
C++
107 lines
3.8 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 "modules/audio_processing/aec3/residual_echo_estimator.h"
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#include "api/audio/echo_canceller3_config.h"
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#include "modules/audio_processing/aec3/aec3_fft.h"
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#include "modules/audio_processing/aec3/aec_state.h"
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#include "modules/audio_processing/aec3/render_delay_buffer.h"
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#include "modules/audio_processing/test/echo_canceller_test_tools.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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#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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// Verifies that the check for non-null output residual echo power works.
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TEST(ResidualEchoEstimator, NullResidualEchoPowerOutput) {
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EchoCanceller3Config config;
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AecState aec_state(config);
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std::unique_ptr<RenderDelayBuffer> render_delay_buffer(
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RenderDelayBuffer::Create(config, 3));
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std::vector<std::array<float, kFftLengthBy2Plus1>> H2;
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std::array<float, kFftLengthBy2Plus1> S2_linear;
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std::array<float, kFftLengthBy2Plus1> Y2;
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EXPECT_DEATH(ResidualEchoEstimator(EchoCanceller3Config{})
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.Estimate(aec_state, *render_delay_buffer->GetRenderBuffer(),
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S2_linear, Y2, nullptr),
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"");
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}
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#endif
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// TODO(peah): This test is broken in the sense that it not at all tests what it
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// seems to test. Enable the test once that is adressed.
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TEST(ResidualEchoEstimator, DISABLED_BasicTest) {
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EchoCanceller3Config config;
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config.ep_strength.default_len = 0.f;
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config.delay.min_echo_path_delay_blocks = 0;
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ResidualEchoEstimator estimator(config);
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AecState aec_state(config);
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std::unique_ptr<RenderDelayBuffer> render_delay_buffer(
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RenderDelayBuffer::Create(config, 3));
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std::array<float, kFftLengthBy2Plus1> E2_main;
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std::array<float, kFftLengthBy2Plus1> E2_shadow;
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std::array<float, kFftLengthBy2Plus1> S2_linear;
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std::array<float, kFftLengthBy2Plus1> S2_fallback;
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std::array<float, kFftLengthBy2Plus1> Y2;
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std::array<float, kFftLengthBy2Plus1> R2;
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EchoPathVariability echo_path_variability(
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false, EchoPathVariability::DelayAdjustment::kNone, false);
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std::vector<std::vector<float>> x(3, std::vector<float>(kBlockSize, 0.f));
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std::vector<std::array<float, kFftLengthBy2Plus1>> H2(10);
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Random random_generator(42U);
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std::array<float, kBlockSize> s;
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Aec3Fft fft;
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rtc::Optional<DelayEstimate> delay_estimate;
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for (auto& H2_k : H2) {
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H2_k.fill(0.01f);
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}
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H2[2].fill(10.f);
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H2[2][0] = 0.1f;
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std::vector<float> h(GetTimeDomainLength(config.filter.main.length_blocks),
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0.f);
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s.fill(100.f);
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constexpr float kLevel = 10.f;
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E2_shadow.fill(kLevel);
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E2_main.fill(kLevel);
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S2_linear.fill(kLevel);
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S2_fallback.fill(kLevel);
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Y2.fill(kLevel);
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for (int k = 0; k < 1993; ++k) {
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RandomizeSampleVector(&random_generator, x[0]);
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std::for_each(x[0].begin(), x[0].end(), [](float& a) { a /= 30.f; });
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render_delay_buffer->Insert(x);
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if (k == 0) {
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render_delay_buffer->Reset();
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}
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render_delay_buffer->PrepareCaptureProcessing();
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aec_state.HandleEchoPathChange(echo_path_variability);
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aec_state.Update(delay_estimate, H2, h, true,
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*render_delay_buffer->GetRenderBuffer(), E2_main, Y2, s,
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false);
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estimator.Estimate(aec_state, *render_delay_buffer->GetRenderBuffer(),
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S2_linear, Y2, &R2);
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}
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std::for_each(R2.begin(), R2.end(),
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[&](float a) { EXPECT_NEAR(kLevel, a, 0.1f); });
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}
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} // namespace webrtc
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