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 /** 14 * Represents the state of the track. This exposes the same states in C++, 15 * which include two more states than are in the W3C spec. 16 */ 17 typedef NS_ENUM(NSInteger, RTCMediaStreamTrackState) { 18 RTCMediaStreamTrackStateInitializing, 19 RTCMediaStreamTrackStateLive, 20 RTCMediaStreamTrackStateEnded, 21 RTCMediaStreamTrackStateFailed, 22 }; 23 24 NS_ASSUME_NONNULL_BEGIN 25 26 @interface RTCMediaStreamTrack : NSObject 27 28 /** 29 * The kind of track. For example, "audio" if this track represents an audio 30 * track and "video" if this track represents a video track. 31 */ 32 @property(nonatomic, readonly) NSString *kind; 33 34 /** An identifier string. */ 35 @property(nonatomic, readonly) NSString *trackId; 36 37 /** The enabled state of the track. */ 38 @property(nonatomic) BOOL isEnabled; 39 40 /** The state of the track. */ 41 @property(nonatomic, readonly) RTCMediaStreamTrackState readyState; 42 43 - (instancetype)init NS_UNAVAILABLE; 44 45 @end 46 47 NS_ASSUME_NONNULL_END 48