|  | /* | 
|  | *  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); | 
|  | } |