Revert "Pull the Voice Activity Detector out from the AGC"

webrtc/modules/audio_processing/vad/pitch_internal_unittest.cc

-/*
- *  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 "webrtc/modules/audio_processing/vad/pitch_internal.h"
-
-#include <math.h>
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-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);
-}