1 /* 2 * Copyright 2015 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #import <Foundation/Foundation.h> 12 13 #import "RTCMacros.h" 14 #import "RTCMediaSource.h" 15 #import "RTCVideoCapturer.h" 16 17 NS_ASSUME_NONNULL_BEGIN 18 19 RTC_OBJC_EXPORT 20 21 @interface RTC_OBJC_TYPE (RTCVideoSource) : RTC_OBJC_TYPE(RTCMediaSource) <RTC_OBJC_TYPE(RTCVideoCapturerDelegate)> 22 23 - (instancetype)init NS_UNAVAILABLE; 24 25 /** 26 * Calling this function will cause frames to be scaled down to the 27 * requested resolution. Also, frames will be cropped to match the 28 * requested aspect ratio, and frames will be dropped to match the 29 * requested fps. The requested aspect ratio is orientation agnostic and 30 * will be adjusted to maintain the input orientation, so it doesn't 31 * matter if e.g. 1280x720 or 720x1280 is requested. 32 */ 33 - (void)adaptOutputFormatToWidth:(int)width height:(int)height fps:(int)fps; 34 35 @end 36 37 NS_ASSUME_NONNULL_END 38