| /* | 
 |  *  Copyright 2018 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. | 
 |  */ | 
 |  | 
 | package org.webrtc; | 
 |  | 
 | /** | 
 |  * Interface for observering a capturer. Passed to {@link VideoCapturer#initialize}. Provided by | 
 |  * {@link VideoSource#getCapturerObserver}. | 
 |  * | 
 |  * All callbacks must be executed on a single thread. | 
 |  */ | 
 | public interface CapturerObserver { | 
 |   /** Notify if the capturer have been started successfully or not. */ | 
 |   void onCapturerStarted(boolean success); | 
 |   /** Notify that the capturer has been stopped. */ | 
 |   void onCapturerStopped(); | 
 |  | 
 |   /** Delivers a captured frame. */ | 
 |   void onFrameCaptured(VideoFrame frame); | 
 | } |