blob: f0e13affdeb1d1db9aec88f3ae33f13eeee6d74a [file] [log] [blame]
/*
* 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/suppression_gain.h"
#include "rtc_base/checks.h"
#include "system_wrappers/include/cpu_features_wrapper.h"
#include "test/gtest.h"
#include "typedefs.h" // NOLINT(build/include)
namespace webrtc {
namespace aec3 {
#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
// Verifies that the check for non-null output gains works.
TEST(SuppressionGain, NullOutputGains) {
std::array<float, kFftLengthBy2Plus1> E2;
std::array<float, kFftLengthBy2Plus1> R2;
std::array<float, kFftLengthBy2Plus1> N2;
E2.fill(0.f);
R2.fill(0.f);
N2.fill(0.f);
float high_bands_gain;
EXPECT_DEATH(SuppressionGain(EchoCanceller3Config{}, DetectOptimization())
.GetGain(E2, R2, N2, RenderSignalAnalyzer(), false,
std::vector<std::vector<float>>(
3, std::vector<float>(kBlockSize, 0.f)),
false, true, &high_bands_gain, nullptr),
"");
}
#endif
// Does a sanity check that the gains are correctly computed.
TEST(SuppressionGain, BasicGainComputation) {
SuppressionGain suppression_gain(EchoCanceller3Config(),
DetectOptimization());
RenderSignalAnalyzer analyzer;
float high_bands_gain;
std::array<float, kFftLengthBy2Plus1> E2;
std::array<float, kFftLengthBy2Plus1> R2;
std::array<float, kFftLengthBy2Plus1> N2;
std::array<float, kFftLengthBy2Plus1> g;
std::vector<std::vector<float>> x(1, std::vector<float>(kBlockSize, 0.f));
// Ensure that a strong noise is detected to mask any echoes.
E2.fill(10.f);
R2.fill(0.1f);
N2.fill(100.f);
for (int k = 0; k < 10; ++k) {
suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, false, true,
&high_bands_gain, &g);
}
std::for_each(g.begin(), g.end(),
[](float a) { EXPECT_NEAR(1.f, a, 0.001); });
// Ensure that a strong nearend is detected to mask any echoes.
E2.fill(100.f);
R2.fill(0.1f);
N2.fill(0.f);
for (int k = 0; k < 10; ++k) {
suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, false, true,
&high_bands_gain, &g);
}
std::for_each(g.begin(), g.end(),
[](float a) { EXPECT_NEAR(1.f, a, 0.001); });
// Ensure that a strong echo is suppressed.
E2.fill(1000000000.f);
R2.fill(10000000000000.f);
N2.fill(0.f);
for (int k = 0; k < 10; ++k) {
suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, false, true,
&high_bands_gain, &g);
}
std::for_each(g.begin(), g.end(),
[](float a) { EXPECT_NEAR(0.f, a, 0.001); });
// Verify the functionality for forcing a zero gain.
suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, true, true,
&high_bands_gain, &g);
std::for_each(g.begin(), g.end(), [](float a) { EXPECT_FLOAT_EQ(0.f, a); });
EXPECT_FLOAT_EQ(0.f, high_bands_gain);
}
} // namespace aec3
} // namespace webrtc