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 15 /** 16 * Represents the state of the track. This exposes the same states in C++. 17 */ 18 typedef NS_ENUM(NSInteger, RTCMediaStreamTrackState) { 19 RTCMediaStreamTrackStateLive, 20 RTCMediaStreamTrackStateEnded 21 }; 22 23 NS_ASSUME_NONNULL_BEGIN 24 25 RTC_EXTERN NSString *const kRTCMediaStreamTrackKindAudio; 26 RTC_EXTERN NSString *const kRTCMediaStreamTrackKindVideo; 27 28 RTC_OBJC_EXPORT 29 @interface RTC_OBJC_TYPE (RTCMediaStreamTrack) : NSObject 30 31 /** 32 * The kind of track. For example, "audio" if this track represents an audio 33 * track and "video" if this track represents a video track. 34 */ 35 @property(nonatomic, readonly) NSString *kind; 36 37 /** An identifier string. */ 38 @property(nonatomic, readonly) NSString *trackId; 39 40 /** The enabled state of the track. */ 41 @property(nonatomic, assign) BOOL isEnabled; 42 43 /** The state of the track. */ 44 @property(nonatomic, readonly) RTCMediaStreamTrackState readyState; 45 46 - (instancetype)init NS_UNAVAILABLE; 47 48 @end 49 50 NS_ASSUME_NONNULL_END 51