| /* |
| * Copyright (c) 2011 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 "gtest/gtest.h" |
| #include "typedefs.h" |
| #include "vad_unittest.h" |
| |
| extern "C" { |
| #include "vad_gmm.h" |
| } |
| |
| namespace { |
| |
| TEST_F(VadTest, vad_gmm) { |
| int16_t delta = 0; |
| // Input value at mean. |
| EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(0, 0, 128, &delta)); |
| EXPECT_EQ(0, delta); |
| EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(16, 128, 128, &delta)); |
| EXPECT_EQ(0, delta); |
| EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(-16, -128, 128, &delta)); |
| EXPECT_EQ(0, delta); |
| |
| // Largest possible input to give non-zero probability. |
| EXPECT_EQ(1024, WebRtcVad_GaussianProbability(59, 0, 128, &delta)); |
| EXPECT_EQ(7552, delta); |
| EXPECT_EQ(1024, WebRtcVad_GaussianProbability(75, 128, 128, &delta)); |
| EXPECT_EQ(7552, delta); |
| EXPECT_EQ(1024, WebRtcVad_GaussianProbability(-75, -128, 128, &delta)); |
| EXPECT_EQ(-7552, delta); |
| |
| // Too large input, should give zero probability. |
| EXPECT_EQ(0, WebRtcVad_GaussianProbability(105, 0, 128, &delta)); |
| EXPECT_EQ(13440, delta); |
| } |
| } // namespace |