|  | /* | 
|  | *  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 "RTCOpenGLDefines.h" | 
|  | #import "base/RTCVideoFrame.h" | 
|  |  | 
|  | @interface RTCI420TextureCache : NSObject | 
|  |  | 
|  | @property(nonatomic, readonly) GLuint yTexture; | 
|  | @property(nonatomic, readonly) GLuint uTexture; | 
|  | @property(nonatomic, readonly) GLuint vTexture; | 
|  |  | 
|  | - (instancetype)init NS_UNAVAILABLE; | 
|  | - (instancetype)initWithContext:(GlContextType *)context NS_DESIGNATED_INITIALIZER; | 
|  |  | 
|  | - (void)uploadFrameToTextures:(RTC_OBJC_TYPE(RTCVideoFrame) *)frame; | 
|  |  | 
|  | @end |