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 "webrtc/modules/audio_processing/vad/pitch_based_vad.h"
12
13 #include <math.h>
14 #include <stdio.h>
15
16 #include <string>
17
18 #include "testing/gtest/include/gtest/gtest.h"
19 #include "webrtc/test/testsupport/fileutils.h"
20
21 namespace webrtc {
22
TEST(PitchBasedVadTest,VoicingProbabilityTest)23 TEST(PitchBasedVadTest, VoicingProbabilityTest) {
24 std::string spectral_peak_file_name =
25 test::ResourcePath("audio_processing/agc/agc_spectral_peak", "dat");
26 FILE* spectral_peak_file = fopen(spectral_peak_file_name.c_str(), "rb");
27 ASSERT_TRUE(spectral_peak_file != NULL);
28
29 std::string pitch_gain_file_name =
30 test::ResourcePath("audio_processing/agc/agc_pitch_gain", "dat");
31 FILE* pitch_gain_file = fopen(pitch_gain_file_name.c_str(), "rb");
32 ASSERT_TRUE(pitch_gain_file != NULL);
33
34 std::string pitch_lag_file_name =
35 test::ResourcePath("audio_processing/agc/agc_pitch_lag", "dat");
36 FILE* pitch_lag_file = fopen(pitch_lag_file_name.c_str(), "rb");
37 ASSERT_TRUE(pitch_lag_file != NULL);
38
39 std::string voicing_prob_file_name =
40 test::ResourcePath("audio_processing/agc/agc_voicing_prob", "dat");
41 FILE* voicing_prob_file = fopen(voicing_prob_file_name.c_str(), "rb");
42 ASSERT_TRUE(voicing_prob_file != NULL);
43
44 PitchBasedVad vad_;
45
46 double reference_activity_probability;
47
48 AudioFeatures audio_features;
49 memset(&audio_features, 0, sizeof(audio_features));
50 audio_features.num_frames = 1;
51 while (fread(audio_features.spectral_peak,
52 sizeof(audio_features.spectral_peak[0]), 1,
53 spectral_peak_file) == 1u) {
54 double p;
55 ASSERT_EQ(1u, fread(audio_features.log_pitch_gain,
56 sizeof(audio_features.log_pitch_gain[0]), 1,
57 pitch_gain_file));
58 ASSERT_EQ(1u,
59 fread(audio_features.pitch_lag_hz,
60 sizeof(audio_features.pitch_lag_hz[0]), 1, pitch_lag_file));
61 ASSERT_EQ(1u, fread(&reference_activity_probability,
62 sizeof(reference_activity_probability), 1,
63 voicing_prob_file));
64
65 p = 0.5; // Initialize to the neutral value for combining probabilities.
66 EXPECT_EQ(0, vad_.VoicingProbability(audio_features, &p));
67 EXPECT_NEAR(p, reference_activity_probability, 0.01);
68 }
69
70 fclose(spectral_peak_file);
71 fclose(pitch_gain_file);
72 fclose(pitch_lag_file);
73 }
74
75 } // namespace webrtc
76