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/*
* Copyright (c) 2012 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 "modules/audio_processing/vad/pitch_internal.h"
#include <math.h>
#include "test/gtest.h"
namespace webrtc {
TEST(PitchInternalTest, test) {
const int kSamplingRateHz = 8000;
const int kNumInputParameters = 4;
const int kNumOutputParameters = 3;
// Inputs
double log_old_gain = log(0.5);
double gains[] = {0.6, 0.2, 0.5, 0.4};
double old_lag = 70;
double lags[] = {90, 111, 122, 50};
// Expected outputs
double expected_log_pitch_gain[] = {-0.541212549898316, -1.45672279045507,
-0.80471895621705};
double expected_log_old_gain = log(gains[kNumInputParameters - 1]);
double expected_pitch_lag_hz[] = {92.3076923076923, 70.9010339734121,
93.0232558139535};
double expected_old_lag = lags[kNumInputParameters - 1];
double log_pitch_gain[kNumOutputParameters];
double pitch_lag_hz[kNumInputParameters];
GetSubframesPitchParameters(kSamplingRateHz, gains, lags, kNumInputParameters,
kNumOutputParameters, &log_old_gain, &old_lag,
log_pitch_gain, pitch_lag_hz);
for (int n = 0; n < 3; n++) {
EXPECT_NEAR(pitch_lag_hz[n], expected_pitch_lag_hz[n], 1e-6);
EXPECT_NEAR(log_pitch_gain[n], expected_log_pitch_gain[n], 1e-8);
}
EXPECT_NEAR(old_lag, expected_old_lag, 1e-6);
EXPECT_NEAR(log_old_gain, expected_log_old_gain, 1e-8);
}
} // namespace webrtc
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