| /* |
| * Copyright (c) 2017 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/residual_echo_estimator.h" |
| |
| #include "api/audio/echo_canceller3_config.h" |
| #include "modules/audio_processing/aec3/aec3_fft.h" |
| #include "modules/audio_processing/aec3/aec_state.h" |
| #include "modules/audio_processing/aec3/render_delay_buffer.h" |
| #include "modules/audio_processing/test/echo_canceller_test_tools.h" |
| #include "rtc_base/random.h" |
| #include "rtc_base/strings/string_builder.h" |
| #include "test/gtest.h" |
| |
| namespace webrtc { |
| |
| class ResidualEchoEstimatorMultiChannel |
| : public ::testing::Test, |
| public ::testing::WithParamInterface<std::tuple<size_t, size_t>> {}; |
| |
| INSTANTIATE_TEST_SUITE_P(MultiChannel, |
| ResidualEchoEstimatorMultiChannel, |
| ::testing::Combine(::testing::Values(1, 2, 4), |
| ::testing::Values(1, 2, 4))); |
| |
| TEST_P(ResidualEchoEstimatorMultiChannel, BasicTest) { |
| const size_t num_render_channels = std::get<0>(GetParam()); |
| const size_t num_capture_channels = std::get<1>(GetParam()); |
| constexpr int kSampleRateHz = 48000; |
| constexpr size_t kNumBands = NumBandsForRate(kSampleRateHz); |
| |
| EchoCanceller3Config config; |
| ResidualEchoEstimator estimator(config, num_render_channels); |
| AecState aec_state(config, num_capture_channels); |
| std::unique_ptr<RenderDelayBuffer> render_delay_buffer( |
| RenderDelayBuffer::Create(config, kSampleRateHz, num_render_channels)); |
| |
| std::vector<std::array<float, kFftLengthBy2Plus1>> E2_refined( |
| num_capture_channels); |
| std::vector<std::array<float, kFftLengthBy2Plus1>> S2_linear( |
| num_capture_channels); |
| std::vector<std::array<float, kFftLengthBy2Plus1>> Y2(num_capture_channels); |
| std::vector<std::array<float, kFftLengthBy2Plus1>> R2(num_capture_channels); |
| std::vector<std::vector<std::vector<float>>> x( |
| kNumBands, std::vector<std::vector<float>>( |
| num_render_channels, std::vector<float>(kBlockSize, 0.f))); |
| std::vector<std::vector<std::array<float, kFftLengthBy2Plus1>>> H2( |
| num_capture_channels, |
| std::vector<std::array<float, kFftLengthBy2Plus1>>(10)); |
| Random random_generator(42U); |
| std::vector<SubtractorOutput> output(num_capture_channels); |
| std::array<float, kBlockSize> y; |
| absl::optional<DelayEstimate> delay_estimate; |
| |
| for (auto& H2_ch : H2) { |
| for (auto& H2_k : H2_ch) { |
| H2_k.fill(0.01f); |
| } |
| H2_ch[2].fill(10.f); |
| H2_ch[2][0] = 0.1f; |
| } |
| |
| std::vector<std::vector<float>> h( |
| num_capture_channels, |
| std::vector<float>( |
| GetTimeDomainLength(config.filter.refined.length_blocks), 0.f)); |
| |
| for (auto& subtractor_output : output) { |
| subtractor_output.Reset(); |
| subtractor_output.s_refined.fill(100.f); |
| } |
| y.fill(0.f); |
| |
| constexpr float kLevel = 10.f; |
| for (auto& E2_refined_ch : E2_refined) { |
| E2_refined_ch.fill(kLevel); |
| } |
| S2_linear[0].fill(kLevel); |
| for (auto& Y2_ch : Y2) { |
| Y2_ch.fill(kLevel); |
| } |
| |
| for (int k = 0; k < 1993; ++k) { |
| RandomizeSampleVector(&random_generator, x[0][0]); |
| render_delay_buffer->Insert(x); |
| if (k == 0) { |
| render_delay_buffer->Reset(); |
| } |
| render_delay_buffer->PrepareCaptureProcessing(); |
| |
| aec_state.Update(delay_estimate, H2, h, |
| *render_delay_buffer->GetRenderBuffer(), E2_refined, Y2, |
| output); |
| |
| estimator.Estimate(aec_state, *render_delay_buffer->GetRenderBuffer(), |
| S2_linear, Y2, R2); |
| } |
| } |
| |
| } // namespace webrtc |