mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 22:00:47 +01:00
b18c4eb0a9
Bug: webrtc:11295 Change-Id: I478aa02908c494cf9609db00021438a59a132b66 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/167202 Commit-Queue: Sam Zackrisson <saza@webrtc.org> Reviewed-by: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#30370}
104 lines
3.6 KiB
C++
104 lines
3.6 KiB
C++
/*
|
|
* 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/erl_estimator.h"
|
|
|
|
#include "rtc_base/strings/string_builder.h"
|
|
#include "test/gtest.h"
|
|
|
|
namespace webrtc {
|
|
|
|
namespace {
|
|
std::string ProduceDebugText(size_t num_render_channels,
|
|
size_t num_capture_channels) {
|
|
rtc::StringBuilder ss;
|
|
ss << "Render channels: " << num_render_channels;
|
|
ss << ", Capture channels: " << num_capture_channels;
|
|
return ss.Release();
|
|
}
|
|
|
|
void VerifyErl(const std::array<float, kFftLengthBy2Plus1>& erl,
|
|
float erl_time_domain,
|
|
float reference) {
|
|
std::for_each(erl.begin(), erl.end(),
|
|
[reference](float a) { EXPECT_NEAR(reference, a, 0.001); });
|
|
EXPECT_NEAR(reference, erl_time_domain, 0.001);
|
|
}
|
|
|
|
} // namespace
|
|
|
|
class ErlEstimatorMultiChannel
|
|
: public ::testing::Test,
|
|
public ::testing::WithParamInterface<std::tuple<size_t, size_t>> {};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(MultiChannel,
|
|
ErlEstimatorMultiChannel,
|
|
::testing::Combine(::testing::Values(1, 2, 8),
|
|
::testing::Values(1, 2, 8)));
|
|
|
|
// Verifies that the correct ERL estimates are achieved.
|
|
TEST_P(ErlEstimatorMultiChannel, Estimates) {
|
|
const size_t num_render_channels = std::get<0>(GetParam());
|
|
const size_t num_capture_channels = std::get<1>(GetParam());
|
|
SCOPED_TRACE(ProduceDebugText(num_render_channels, num_capture_channels));
|
|
std::vector<std::array<float, kFftLengthBy2Plus1>> X2(num_render_channels);
|
|
for (auto& X2_ch : X2) {
|
|
X2_ch.fill(0.f);
|
|
}
|
|
std::vector<std::array<float, kFftLengthBy2Plus1>> Y2(num_capture_channels);
|
|
for (auto& Y2_ch : Y2) {
|
|
Y2_ch.fill(0.f);
|
|
}
|
|
std::vector<bool> converged_filters(num_capture_channels, false);
|
|
const size_t converged_idx = num_capture_channels - 1;
|
|
converged_filters[converged_idx] = true;
|
|
|
|
ErlEstimator estimator(0);
|
|
|
|
// Verifies that the ERL estimate is properly reduced to lower values.
|
|
for (auto& X2_ch : X2) {
|
|
X2_ch.fill(500 * 1000.f * 1000.f);
|
|
}
|
|
Y2[converged_idx].fill(10 * X2[0][0]);
|
|
for (size_t k = 0; k < 200; ++k) {
|
|
estimator.Update(converged_filters, X2, Y2);
|
|
}
|
|
VerifyErl(estimator.Erl(), estimator.ErlTimeDomain(), 10.f);
|
|
|
|
// Verifies that the ERL is not immediately increased when the ERL in the
|
|
// data increases.
|
|
Y2[converged_idx].fill(10000 * X2[0][0]);
|
|
for (size_t k = 0; k < 998; ++k) {
|
|
estimator.Update(converged_filters, X2, Y2);
|
|
}
|
|
VerifyErl(estimator.Erl(), estimator.ErlTimeDomain(), 10.f);
|
|
|
|
// Verifies that the rate of increase is 3 dB.
|
|
estimator.Update(converged_filters, X2, Y2);
|
|
VerifyErl(estimator.Erl(), estimator.ErlTimeDomain(), 20.f);
|
|
|
|
// Verifies that the maximum ERL is achieved when there are no low RLE
|
|
// estimates.
|
|
for (size_t k = 0; k < 1000; ++k) {
|
|
estimator.Update(converged_filters, X2, Y2);
|
|
}
|
|
VerifyErl(estimator.Erl(), estimator.ErlTimeDomain(), 1000.f);
|
|
|
|
// Verifies that the ERL estimate is is not updated for low-level signals
|
|
for (auto& X2_ch : X2) {
|
|
X2_ch.fill(1000.f * 1000.f);
|
|
}
|
|
Y2[converged_idx].fill(10 * X2[0][0]);
|
|
for (size_t k = 0; k < 200; ++k) {
|
|
estimator.Update(converged_filters, X2, Y2);
|
|
}
|
|
VerifyErl(estimator.Erl(), estimator.ErlTimeDomain(), 1000.f);
|
|
}
|
|
} // namespace webrtc
|