[WebRTC] A real ScreenCapturer test

webrtc/modules/desktop_capture/desktop_frame.h

 /*
  *  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 50 matching lines @@
   void CopyPixelsFrom(uint8_t* src_buffer,
                       int src_stride,
                       const DesktopRect& dest_rect);
   void CopyPixelsFrom(const DesktopFrame& src_frame,
                       const DesktopVector& src_pos,
                       const DesktopRect& dest_rect);
 
   // A helper to return the data pointer of a frame at the specified position.
   uint8_t* GetFrameDataAtPos(const DesktopVector& pos) const;
 
+  // A helper to return the position at the specified data pointer.
+  DesktopVector GetPosAtFrameData(const uint8_t* const pos) const;

[Jamie, 2016/08/26 22:29:09]

You don't seem to be using this.

[Hzj_jie, 2016/08/29 21:57:28]

Done.

+
  protected:
   DesktopFrame(DesktopSize size,
                int stride,
                uint8_t* data,
                SharedMemory* shared_memory);
 
   // Ownership of the buffers is defined by the classes that inherit from this
   // class. They must guarantee that the buffer is not deleted before the frame
   // is deleted.
   uint8_t* const data_;
@@ skipping 43 matching lines @@
   ~SharedMemoryDesktopFrame() override;
 
  private:
   RTC_DISALLOW_COPY_AND_ASSIGN(SharedMemoryDesktopFrame);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_FRAME_H_