Reland of Delete webrtc::VideoFrame methods buffer and stride.

webrtc/common_video/libyuv/scaler.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.
  */
 
@@ skipping 29 matching lines @@
 
   src_width_ = src_width;
   src_height_ = src_height;
   dst_width_ = dst_width;
   dst_height_ = dst_height;
   method_ = method;
   set_ = true;
   return 0;
 }
 
+// TODO(nisse): Should work with VideoFrameBuffer instead.
 int Scaler::Scale(const VideoFrame& src_frame, VideoFrame* dst_frame) {
   assert(dst_frame);
   if (src_frame.IsZeroSize())
     return -1;
   if (!set_)
     return -2;
 
   // Making sure that destination frame is of sufficient size.
   dst_frame->set_video_frame_buffer(
       buffer_pool_.CreateBuffer(dst_width_, dst_height_));
 
   // We want to preserve aspect ratio instead of stretching the frame.
   // Therefore, we need to crop the source frame. Calculate the largest center
   // aligned region of the source frame that can be used.
   const int cropped_src_width =
       std::min(src_width_, dst_width_ * src_height_ / dst_height_);
   const int cropped_src_height =
       std::min(src_height_, dst_height_ * src_width_ / dst_width_);
   // Make sure the offsets are even to avoid rounding errors for the U/V planes.
   const int src_offset_x = ((src_width_ - cropped_src_width) / 2) & ~1;
   const int src_offset_y = ((src_height_ - cropped_src_height) / 2) & ~1;
 
-  const uint8_t* y_ptr = src_frame.buffer(kYPlane) +
-                         src_offset_y * src_frame.stride(kYPlane) +
-                         src_offset_x;
-  const uint8_t* u_ptr = src_frame.buffer(kUPlane) +
-                         src_offset_y / 2 * src_frame.stride(kUPlane) +
-                         src_offset_x / 2;
-  const uint8_t* v_ptr = src_frame.buffer(kVPlane) +
-                         src_offset_y / 2 * src_frame.stride(kVPlane) +
-                         src_offset_x / 2;
+  const uint8_t* y_ptr =
+      src_frame.video_frame_buffer()->DataY() +
+      src_offset_y * src_frame.video_frame_buffer()->StrideY() +
+      src_offset_x;
+  const uint8_t* u_ptr =
+      src_frame.video_frame_buffer()->DataU() +
+      src_offset_y / 2 * src_frame.video_frame_buffer()->StrideU() +
+      src_offset_x / 2;
+  const uint8_t* v_ptr =
+      src_frame.video_frame_buffer()->DataV() +
+      src_offset_y / 2 * src_frame.video_frame_buffer()->StrideV() +
+      src_offset_x / 2;
 
-  return libyuv::I420Scale(y_ptr,
-                           src_frame.stride(kYPlane),
-                           u_ptr,
-                           src_frame.stride(kUPlane),
-                           v_ptr,
-                           src_frame.stride(kVPlane),
-                           cropped_src_width, cropped_src_height,
-                           dst_frame->buffer(kYPlane),
-                           dst_frame->stride(kYPlane),
-                           dst_frame->buffer(kUPlane),
-                           dst_frame->stride(kUPlane),
-                           dst_frame->buffer(kVPlane),
-                           dst_frame->stride(kVPlane),
-                           dst_width_, dst_height_,
-                           libyuv::FilterMode(method_));
+  return libyuv::I420Scale(
+      y_ptr,
+      src_frame.video_frame_buffer()->StrideY(),
+      u_ptr,
+      src_frame.video_frame_buffer()->StrideU(),
+      v_ptr,
+      src_frame.video_frame_buffer()->StrideV(),
+      cropped_src_width, cropped_src_height,
+      dst_frame->video_frame_buffer()->MutableDataY(),
+      dst_frame->video_frame_buffer()->StrideY(),
+      dst_frame->video_frame_buffer()->MutableDataU(),
+      dst_frame->video_frame_buffer()->StrideU(),
+      dst_frame->video_frame_buffer()->MutableDataV(),
+      dst_frame->video_frame_buffer()->StrideV(),
+      dst_width_, dst_height_,
+      libyuv::FilterMode(method_));
 }
 
 bool Scaler::SupportedVideoType(VideoType src_video_type,
                                 VideoType dst_video_type) {
   if (src_video_type != dst_video_type)
     return false;
 
   if ((src_video_type == kI420) || (src_video_type == kIYUV) ||
       (src_video_type == kYV12))
     return true;
 
   return false;
 }
 
 }  // namespace webrtc