| /* |
| * 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> |
| #if TARGET_OS_IPHONE |
| #import <UIKit/UIKit.h> |
| #else |
| #import <AppKit/AppKit.h> |
| #endif |
| |
| #import "WebRTC/RTCVideoFrame.h" |
| |
| NS_ASSUME_NONNULL_BEGIN |
| /** |
| * Protocol defining ability to render RTCVideoFrame in Metal enabled views. |
| */ |
| @protocol RTCMTLRenderer <NSObject> |
| |
| /** |
| * Method to be implemented to perform actual rendering of the provided frame. |
| * |
| * @param frame The frame to be rendered. |
| */ |
| - (void)drawFrame:(RTCVideoFrame *)frame; |
| |
| /** |
| * Sets the provided view as rendering destination if possible. |
| * |
| * If not possible method returns NO and callers of the method are responisble for performing |
| * cleanups. |
| */ |
| |
| #if TARGET_OS_IOS |
| - (BOOL)addRenderingDestination:(__kindof UIView *)view; |
| #else |
| - (BOOL)addRenderingDestination:(__kindof NSView *)view; |
| #endif |
| |
| @end |
| |
| /** |
| * Implementation of RTCMTLRenderer protocol. |
| */ |
| NS_AVAILABLE(10_11, 9_0) |
| @interface RTCMTLRenderer : NSObject <RTCMTLRenderer> |
| |
| /** @abstract A wrapped RTCVideoRotation, or nil. |
| @discussion When not nil, the rotation of the actual frame is ignored when rendering. |
| */ |
| @property(atomic, nullable) NSValue *rotationOverride; |
| |
| @end |
| |
| NS_ASSUME_NONNULL_END |
