text: /*
   *  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.
   */
  
  #ifndef WEBRTC_FRAME_CALLBACK_H_
  #define WEBRTC_FRAME_CALLBACK_H_
  
  #include <stddef.h>
  
  #include "webrtc/common_types.h"
  
  namespace webrtc {
  
  class VideoFrame;
  
  struct EncodedFrame {
   public:
    EncodedFrame() : data_(NULL), length_(0), frame_type_(kEmptyFrame) {}
    EncodedFrame(const uint8_t* data, size_t length, FrameType frame_type)
      : data_(data), length_(length), frame_type_(frame_type) {}
  
    const uint8_t* data_;
    const size_t length_;
    const FrameType frame_type_;
  };
  
  class I420FrameCallback {
   public:
    // This function is called with a I420 frame allowing the user to modify the
    // frame content.
    virtual void FrameCallback(VideoFrame* video_frame) = 0;
  
   protected:
    virtual ~I420FrameCallback() {}
  };
  
  class EncodedFrameObserver {
   public:
    virtual void EncodedFrameCallback(const EncodedFrame& encoded_frame) = 0;
  
   protected:
    virtual ~EncodedFrameObserver() {}
  };
  
  }  // namespace webrtc
  
  #endif  // WEBRTC_FRAME_CALLBACK_H_
  