New method I420Buffer::Copy.

webrtc/test/frame_utils.cc

 /*
  *  Copyright (c) 2013 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 @@
   const int half_width = (f1.width() + 1) / 2;
   const int half_height = (f1.height() + 1) / 2;
   return EqualPlane(f1.buffer(webrtc::kYPlane), f2.buffer(webrtc::kYPlane),
                     f1.stride(webrtc::kYPlane), f1.width(), f1.height()) &&
          EqualPlane(f1.buffer(webrtc::kUPlane), f2.buffer(webrtc::kUPlane),
                     f1.stride(webrtc::kUPlane), half_width, half_height) &&
          EqualPlane(f1.buffer(webrtc::kVPlane), f2.buffer(webrtc::kVPlane),
                     f1.stride(webrtc::kVPlane), half_width, half_height);
 }
 
+bool FrameBufsEqual(const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& f1,
+                    const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& f2) {
+  if (f1->width() != f2->width() || f1->height() != f2->height() ||
+      f1->stride(webrtc::kYPlane) != f2->stride(webrtc::kYPlane) ||
+      f1->stride(webrtc::kUPlane) != f2->stride(webrtc::kUPlane) ||
+      f1->stride(webrtc::kVPlane) != f2->stride(webrtc::kVPlane)) {
+    return false;
+  }
+  const int half_width = (f1->width() + 1) / 2;
+  const int half_height = (f1->height() + 1) / 2;
+  return EqualPlane(f1->data(webrtc::kYPlane), f2->data(webrtc::kYPlane),
+                    f1->stride(webrtc::kYPlane), f1->width(), f1->height()) &&
+         EqualPlane(f1->data(webrtc::kUPlane), f2->data(webrtc::kUPlane),
+                    f1->stride(webrtc::kUPlane), half_width, half_height) &&
+         EqualPlane(f1->data(webrtc::kVPlane), f2->data(webrtc::kVPlane),
+                    f1->stride(webrtc::kVPlane), half_width, half_height);
+}
+
 }  // namespace test
 }  // namespace webrtc