1 /* 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "webrtc/modules/audio_processing/transient/transient_suppressor.h" 12 13 #include "testing/gtest/include/gtest/gtest.h" 14 #include "webrtc/modules/audio_processing/transient/common.h" 15 16 namespace webrtc { 17 18 TEST(TransientSuppressorTest, TypingDetectionLogicWorksAsExpectedForMono) { 19 static const int kNumChannels = 1; 20 21 TransientSuppressor ts; 22 ts.Initialize(ts::kSampleRate16kHz, ts::kSampleRate16kHz, kNumChannels); 23 24 // Each key-press enables detection. 25 EXPECT_FALSE(ts.detection_enabled_); 26 ts.UpdateKeypress(true); 27 EXPECT_TRUE(ts.detection_enabled_); 28 29 // It takes four seconds without any key-press to disable the detection 30 for (int time_ms = 0; time_ms < 3990; time_ms += ts::kChunkSizeMs) { 31 ts.UpdateKeypress(false); 32 EXPECT_TRUE(ts.detection_enabled_); 33 } 34 ts.UpdateKeypress(false); 35 EXPECT_FALSE(ts.detection_enabled_); 36 37 // Key-presses that are more than a second apart from each other don't enable 38 // suppression. 39 for (int i = 0; i < 100; ++i) { 40 EXPECT_FALSE(ts.suppression_enabled_); 41 ts.UpdateKeypress(true); 42 EXPECT_TRUE(ts.detection_enabled_); 43 EXPECT_FALSE(ts.suppression_enabled_); 44 for (int time_ms = 0; time_ms < 990; time_ms += ts::kChunkSizeMs) { 45 ts.UpdateKeypress(false); 46 EXPECT_TRUE(ts.detection_enabled_); 47 EXPECT_FALSE(ts.suppression_enabled_); 48 } 49 ts.UpdateKeypress(false); 50 } 51 52 // Two consecutive key-presses is enough to enable the suppression. 53 ts.UpdateKeypress(true); 54 EXPECT_FALSE(ts.suppression_enabled_); 55 ts.UpdateKeypress(true); 56 EXPECT_TRUE(ts.suppression_enabled_); 57 58 // Key-presses that are less than a second apart from each other don't disable 59 // detection nor suppression. 60 for (int i = 0; i < 100; ++i) { 61 for (int time_ms = 0; time_ms < 1000; time_ms += ts::kChunkSizeMs) { 62 ts.UpdateKeypress(false); 63 EXPECT_TRUE(ts.detection_enabled_); 64 EXPECT_TRUE(ts.suppression_enabled_); 65 } 66 ts.UpdateKeypress(true); 67 EXPECT_TRUE(ts.detection_enabled_); 68 EXPECT_TRUE(ts.suppression_enabled_); 69 } 70 71 // It takes four seconds without any key-press to disable the detection and 72 // suppression. 73 for (int time_ms = 0; time_ms < 3990; time_ms += ts::kChunkSizeMs) { 74 ts.UpdateKeypress(false); 75 EXPECT_TRUE(ts.detection_enabled_); 76 EXPECT_TRUE(ts.suppression_enabled_); 77 } 78 for (int time_ms = 0; time_ms < 1000; time_ms += ts::kChunkSizeMs) { 79 ts.UpdateKeypress(false); 80 EXPECT_FALSE(ts.detection_enabled_); 81 EXPECT_FALSE(ts.suppression_enabled_); 82 } 83 } 84 85 } // namespace webrtc 86
