Add CoreVideoFrameBuffer.

webrtc/common_video/include/core_video_frame_buffer.h

+/*
+ *  Copyright 2016 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.
+ */
+
+#ifndef WEBRTC_COMMON_VIDEO_INCLUDE_CORE_VIDEO_FRAME_BUFFER_H_
+#define WEBRTC_COMMON_VIDEO_INCLUDE_CORE_VIDEO_FRAME_BUFFER_H_
+
+#include <CoreVideo/CoreVideo.h>
+
+#include "webrtc/common_video/include/video_frame_buffer.h"
+
+namespace webrtc {
+
+class CoreVideoFrameBuffer : public NativeHandleBuffer {
+ public:
+  explicit CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer);
+  virtual ~CoreVideoFrameBuffer();

[magjed_webrtc, 2016/04/04 14:03:30]

nit: Override instead of virtual?

[tkchin_webrtc, 2016/04/04 19:12:51]

Done.

+
+  rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override;
+
+ private:
+  CVPixelBufferRef pixel_buffer_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_COMMON_VIDEO_INCLUDE_CORE_VIDEO_FRAME_BUFFER_H_
+