Rewrite CreateBlackFrame in webrtcvideoengine.

webrtc/modules/video_processing/video_denoiser.cc

 /*
  *  Copyright (c) 2015 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 68 matching lines @@
     rtc::scoped_refptr<I420Buffer>* denoised_frame_prev) {
   width_ = frame->width();
   height_ = frame->height();
   mb_cols_ = width_ >> 4;
   mb_rows_ = height_ >> 4;
   stride_y_ = frame->StrideY();
   stride_u_ = frame->StrideU();
   stride_v_ = frame->StrideV();
 
   // Allocate an empty buffer for denoised_frame_prev.
-  *denoised_frame_prev = new rtc::RefCountedObject<I420Buffer>(
+  *denoised_frame_prev = I420Buffer::Create(
       width_, height_, stride_y_, stride_u_, stride_v_);
   // Allocate and initialize denoised_frame with key frame.
   *denoised_frame = I420Buffer::CopyKeepStride(frame);
 
   // Init noise estimator and allocate buffers.
   ne_->Init(width_, height_, cpu_type_);
   moving_edge_.reset(new uint8_t[mb_cols_ * mb_rows_]);
   mb_filter_decision_.reset(new DenoiserDecision[mb_cols_ * mb_rows_]);
   x_density_.reset(new uint8_t[mb_cols_]);
   y_density_.reset(new uint8_t[mb_rows_]);
@@ skipping 233 matching lines @@
   memcpy(v_dst, v_src, (height_ >> 1) * stride_v_);
 
 #if DISPLAY || DISPLAYNEON
   // Show rectangular region
   ShowRect(filter_, moving_edge_, moving_object_, x_density_, y_density_, u_src,
            v_src, u_dst, v_dst, mb_rows_, mb_cols_, stride_u_, stride_v_);
 #endif
 }
 
 }  // namespace webrtc