1 /*
2 * Copyright (c) 2012 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 "modules/audio_processing/vad/pitch_internal.h"
12
13 #include <math.h>
14
15 #include "test/gtest.h"
16
17 namespace webrtc {
18
TEST(PitchInternalTest,test)19 TEST(PitchInternalTest, test) {
20 const int kSamplingRateHz = 8000;
21 const int kNumInputParameters = 4;
22 const int kNumOutputParameters = 3;
23 // Inputs
24 double log_old_gain = log(0.5);
25 double gains[] = {0.6, 0.2, 0.5, 0.4};
26
27 double old_lag = 70;
28 double lags[] = {90, 111, 122, 50};
29
30 // Expected outputs
31 double expected_log_pitch_gain[] = {-0.541212549898316, -1.45672279045507,
32 -0.80471895621705};
33 double expected_log_old_gain = log(gains[kNumInputParameters - 1]);
34
35 double expected_pitch_lag_hz[] = {92.3076923076923, 70.9010339734121,
36 93.0232558139535};
37 double expected_old_lag = lags[kNumInputParameters - 1];
38
39 double log_pitch_gain[kNumOutputParameters];
40 double pitch_lag_hz[kNumInputParameters];
41
42 GetSubframesPitchParameters(kSamplingRateHz, gains, lags, kNumInputParameters,
43 kNumOutputParameters, &log_old_gain, &old_lag,
44 log_pitch_gain, pitch_lag_hz);
45
46 for (int n = 0; n < 3; n++) {
47 EXPECT_NEAR(pitch_lag_hz[n], expected_pitch_lag_hz[n], 1e-6);
48 EXPECT_NEAR(log_pitch_gain[n], expected_log_pitch_gain[n], 1e-8);
49 }
50 EXPECT_NEAR(old_lag, expected_old_lag, 1e-6);
51 EXPECT_NEAR(log_old_gain, expected_log_old_gain, 1e-8);
52 }
53
54 } // namespace webrtc
55