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44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/common_audio/vad/vad_unittest.h"
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#include "webrtc/typedefs.h"
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extern "C" {
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#include "webrtc/common_audio/vad/vad_gmm.h"
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}
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namespace {
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TEST_F(VadTest, vad_gmm) {
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int16_t delta = 0;
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// Input value at mean.
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EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(0, 0, 128, &delta));
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EXPECT_EQ(0, delta);
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EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(16, 128, 128, &delta));
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EXPECT_EQ(0, delta);
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EXPECT_EQ(1048576, WebRtcVad_GaussianProbability(-16, -128, 128, &delta));
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EXPECT_EQ(0, delta);
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// Largest possible input to give non-zero probability.
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EXPECT_EQ(1024, WebRtcVad_GaussianProbability(59, 0, 128, &delta));
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EXPECT_EQ(7552, delta);
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EXPECT_EQ(1024, WebRtcVad_GaussianProbability(75, 128, 128, &delta));
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EXPECT_EQ(7552, delta);
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EXPECT_EQ(1024, WebRtcVad_GaussianProbability(-75, -128, 128, &delta));
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EXPECT_EQ(-7552, delta);
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// Too large input, should give zero probability.
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EXPECT_EQ(0, WebRtcVad_GaussianProbability(105, 0, 128, &delta));
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EXPECT_EQ(13440, delta);
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}
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} // namespace
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