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/*
* Copyright (c) 2014 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 "webrtc/modules/audio_processing/transient/transient_suppressor.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/modules/audio_processing/transient/common.h"
namespace webrtc {
TEST(TransientSuppressorTest, TypingDetectionLogicWorksAsExpectedForMono) {
static const int kNumChannels = 1;
TransientSuppressor ts;
ts.Initialize(ts::kSampleRate16kHz, ts::kSampleRate16kHz, kNumChannels);
// Each key-press enables detection.
EXPECT_FALSE(ts.detection_enabled_);
ts.UpdateKeypress(true);
EXPECT_TRUE(ts.detection_enabled_);
// It takes four seconds without any key-press to disable the detection
for (int time_ms = 0; time_ms < 3990; time_ms += ts::kChunkSizeMs) {
ts.UpdateKeypress(false);
EXPECT_TRUE(ts.detection_enabled_);
}
ts.UpdateKeypress(false);
EXPECT_FALSE(ts.detection_enabled_);
// Key-presses that are more than a second apart from each other don't enable
// suppression.
for (int i = 0; i < 100; ++i) {
EXPECT_FALSE(ts.suppression_enabled_);
ts.UpdateKeypress(true);
EXPECT_TRUE(ts.detection_enabled_);
EXPECT_FALSE(ts.suppression_enabled_);
for (int time_ms = 0; time_ms < 990; time_ms += ts::kChunkSizeMs) {
ts.UpdateKeypress(false);
EXPECT_TRUE(ts.detection_enabled_);
EXPECT_FALSE(ts.suppression_enabled_);
}
ts.UpdateKeypress(false);
}
// Two consecutive key-presses is enough to enable the suppression.
ts.UpdateKeypress(true);
EXPECT_FALSE(ts.suppression_enabled_);
ts.UpdateKeypress(true);
EXPECT_TRUE(ts.suppression_enabled_);
// Key-presses that are less than a second apart from each other don't disable
// detection nor suppression.
for (int i = 0; i < 100; ++i) {
for (int time_ms = 0; time_ms < 1000; time_ms += ts::kChunkSizeMs) {
ts.UpdateKeypress(false);
EXPECT_TRUE(ts.detection_enabled_);
EXPECT_TRUE(ts.suppression_enabled_);
}
ts.UpdateKeypress(true);
EXPECT_TRUE(ts.detection_enabled_);
EXPECT_TRUE(ts.suppression_enabled_);
}
// It takes four seconds without any key-press to disable the detection and
// suppression.
for (int time_ms = 0; time_ms < 3990; time_ms += ts::kChunkSizeMs) {
ts.UpdateKeypress(false);
EXPECT_TRUE(ts.detection_enabled_);
EXPECT_TRUE(ts.suppression_enabled_);
}
for (int time_ms = 0; time_ms < 1000; time_ms += ts::kChunkSizeMs) {
ts.UpdateKeypress(false);
EXPECT_FALSE(ts.detection_enabled_);
EXPECT_FALSE(ts.suppression_enabled_);
}
}
} // namespace webrtc
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