|  | /* | 
|  | *  Copyright 2017 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> | 
|  |  | 
|  | #import "WebRTC/RTCVideoRenderer.h" | 
|  |  | 
|  | // Check if metal is supported in WebRTC. | 
|  | // NOTE: Currently arm64 == Metal. | 
|  | #if defined(__aarch64__) | 
|  | #define RTC_SUPPORTS_METAL | 
|  | #endif | 
|  |  | 
|  | NS_ASSUME_NONNULL_BEGIN | 
|  |  | 
|  | /** | 
|  | * RTCMTLVideoView is thin wrapper around MTKView. | 
|  | * | 
|  | * It has id<RTCVideoRenderer> property that renders video frames in the view's | 
|  | * bounds using Metal. | 
|  | */ | 
|  | NS_CLASS_AVAILABLE_IOS(9) | 
|  |  | 
|  | RTC_EXPORT | 
|  | @interface RTCMTLVideoView : UIView <RTCVideoRenderer> | 
|  |  | 
|  | @end | 
|  | NS_ASSUME_NONNULL_END |