Update I420Buffer to new VideoFrameBuffer interface

webrtc/common_video/libyuv/include/webrtc_libyuv.h

 /*
  *  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 32 matching lines @@
 size_t CalcBufferSize(VideoType type, int width, int height);
 
 // TODO(mikhal): Add unit test for these two functions and determine location.
 // Print VideoFrame to file
 // Input:
 //    - frame       : Reference to video frame.
 //    - file        : pointer to file object. It is assumed that the file is
 //                    already open for writing.
 // Return value: 0 if OK, < 0 otherwise.
 int PrintVideoFrame(const VideoFrame& frame, FILE* file);
-int PrintVideoFrame(const VideoFrameBuffer& frame, FILE* file);
+int PrintVideoFrame(const I420BufferInterface& frame, FILE* file);
 
-// Extract buffer from VideoFrame or VideoFrameBuffer (consecutive
+// Extract buffer from VideoFrame or I420BufferInterface (consecutive
 // planes, no stride)
 // Input:
 //   - frame       : Reference to video frame.
 //   - size        : pointer to the size of the allocated buffer. If size is
 //                   insufficient, an error will be returned.
 //   - buffer      : Pointer to buffer
 // Return value: length of buffer if OK, < 0 otherwise.
-int ExtractBuffer(const rtc::scoped_refptr<VideoFrameBuffer>& input_frame,
+int ExtractBuffer(const rtc::scoped_refptr<I420BufferInterface>& input_frame,
                   size_t size,
                   uint8_t* buffer);
 int ExtractBuffer(const VideoFrame& input_frame, size_t size, uint8_t* buffer);
 // Convert To I420
 // Input:
 //   - src_video_type   : Type of input video.
 //   - src_frame        : Pointer to a source frame.
 //   - crop_x/crop_y    : Starting positions for cropping (0 for no crop).
 //   - src_width        : src width in pixels.
 //   - src_height       : src height in pixels.
@@ skipping 27 matching lines @@
 // Return value: 0 if OK, < 0 otherwise.
 // It is assumed that source and destination have equal height.
 int ConvertFromI420(const VideoFrame& src_frame,
                     VideoType dst_video_type,
                     int dst_sample_size,
                     uint8_t* dst_frame);
 
 // Compute PSNR for an I420 frame (all planes).
 // Returns the PSNR in decibel, to a maximum of kInfinitePSNR.
 double I420PSNR(const VideoFrame* ref_frame, const VideoFrame* test_frame);
-double I420PSNR(const VideoFrameBuffer& ref_buffer,
-                const VideoFrameBuffer& test_buffer);
+double I420PSNR(const I420BufferInterface& ref_buffer,
+                const I420BufferInterface& test_buffer);
 
 // Compute SSIM for an I420 frame (all planes).
 double I420SSIM(const VideoFrame* ref_frame, const VideoFrame* test_frame);
-double I420SSIM(const VideoFrameBuffer& ref_buffer,
-                const VideoFrameBuffer& test_buffer);
+double I420SSIM(const I420BufferInterface& ref_buffer,
+                const I420BufferInterface& test_buffer);
 
 // Helper function for scaling NV12 to NV12.
 void NV12Scale(std::vector<uint8_t>* tmp_buffer,
                const uint8_t* src_y, int src_stride_y,
                const uint8_t* src_uv, int src_stride_uv,
                int src_width, int src_height,
                uint8_t* dst_y, int dst_stride_y,
                uint8_t* dst_uv, int dst_stride_uv,
                int dst_width, int dst_height);
 
@@ skipping 11 matching lines @@
                        uint8_t* dst_u, int dst_stride_u,
                        uint8_t* dst_v, int dst_stride_v,
                        int dst_width, int dst_height);
  private:
   std::vector<uint8_t> tmp_uv_planes_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_COMMON_VIDEO_LIBYUV_INCLUDE_WEBRTC_LIBYUV_H_