|  | /* | 
|  | *  Copyright 2015 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. | 
|  | */ | 
|  |  | 
|  | #import <Foundation/Foundation.h> | 
|  | #if TARGET_OS_IPHONE | 
|  | #import <UIKit/UIKit.h> | 
|  | #endif | 
|  |  | 
|  | #import <WebRTC/RTCMacros.h> | 
|  |  | 
|  | NS_ASSUME_NONNULL_BEGIN | 
|  |  | 
|  | @class RTCVideoFrame; | 
|  |  | 
|  | RTC_EXPORT | 
|  | @protocol RTCVideoRenderer <NSObject> | 
|  |  | 
|  | /** The size of the frame. */ | 
|  | - (void)setSize:(CGSize)size; | 
|  |  | 
|  | /** The frame to be displayed. */ | 
|  | - (void)renderFrame:(nullable RTCVideoFrame *)frame; | 
|  |  | 
|  | @end | 
|  |  | 
|  | NS_ASSUME_NONNULL_END |