andrew@webrtc.org | a7b57da | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 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 | |
pbos@webrtc.org | abf0cd8 | 2013-05-27 09:49:58 +0000 | [diff] [blame] | 11 | #include "testing/gtest/include/gtest/gtest.h" |
| 12 | #include "webrtc/common_audio/vad/vad_unittest.h" |
| 13 | #include "webrtc/typedefs.h" |
andrew@webrtc.org | a7b57da | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 14 | |
| 15 | extern "C" { |
pbos@webrtc.org | abf0cd8 | 2013-05-27 09:49:58 +0000 | [diff] [blame] | 16 | #include "webrtc/common_audio/vad/vad_gmm.h" |
andrew@webrtc.org | a7b57da | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 17 | } |
| 18 | |
| 19 | namespace { |
| 20 | |
| 21 | TEST_F(VadTest, vad_gmm) { |
| 22 | int16_t delta = 0; |
| 23 | // Input value at mean. |
| 24 | EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(0, 0, 128, &delta)); |
| 25 | EXPECT_EQ(0, delta); |
| 26 | EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(16, 128, 128, &delta)); |
| 27 | EXPECT_EQ(0, delta); |
| 28 | EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(-16, -128, 128, &delta)); |
| 29 | EXPECT_EQ(0, delta); |
| 30 | |
| 31 | // Largest possible input to give non-zero probability. |
| 32 | EXPECT_EQ(1024, WebRtcVad_GaussianProbability(59, 0, 128, &delta)); |
| 33 | EXPECT_EQ(7552, delta); |
| 34 | EXPECT_EQ(1024, WebRtcVad_GaussianProbability(75, 128, 128, &delta)); |
| 35 | EXPECT_EQ(7552, delta); |
| 36 | EXPECT_EQ(1024, WebRtcVad_GaussianProbability(-75, -128, 128, &delta)); |
| 37 | EXPECT_EQ(-7552, delta); |
| 38 | |
| 39 | // Too large input, should give zero probability. |
| 40 | EXPECT_EQ(0, WebRtcVad_GaussianProbability(105, 0, 128, &delta)); |
| 41 | EXPECT_EQ(13440, delta); |
| 42 | } |
| 43 | } // namespace |