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 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
