Refactor QualityScaler and MovingAverage

webrtc/modules/video_coding/utility/quality_scaler_unittest.cc

 /*
  *  Copyright (c) 2014 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.
  */
 
@@ skipping 25 matching lines @@
  protected:
   enum ScaleDirection {
     kKeepScaleAtHighQp,
     kScaleDown,
     kScaleDownAboveHighQp,
     kScaleUp
   };
 
   QualityScalerTest() {
     input_frame_ = I420Buffer::Create(kWidth, kHeight);
-    qs_.Init(kLowQpThreshold, kHighQp, 0, 0, 0, kFramerate);
+    qs_.Init(kLowQpThreshold, kHighQp, 0, kWidth, kHeight, kFramerate);
     qs_.OnEncodeFrame(input_frame_->width(), input_frame_->height());
   }
 
   bool TriggerScale(ScaleDirection scale_direction) {
     qs_.OnEncodeFrame(input_frame_->width(), input_frame_->height());
     int initial_width = qs_.GetScaledResolution().width;
     for (int i = 0; i < kFramerate * kNumSeconds; ++i) {
       switch (scale_direction) {
         case kScaleUp:
           qs_.ReportQP(kLowQp);
@@ skipping 320 matching lines @@
 
 TEST_F(QualityScalerTest, DownscalesFrom1280x720To320x180) {
   DownscaleEndsAt(1280, 720, 320, 180);
 }
 
 TEST_F(QualityScalerTest, DoesntDownscaleInitialQvga) {
   DownscaleEndsAt(320, 180, 320, 180);
 }
 
 }  // namespace webrtc