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 session description type. This exposes the same types that are
15  * in C++, which doesn't include the rollback type that is in the W3C spec.
16  */
17 typedef NS_ENUM(NSInteger, RTCSdpType) {
18   RTCSdpTypeOffer,
19   RTCSdpTypePrAnswer,
20   RTCSdpTypeAnswer,
21 };
22 
23 NS_ASSUME_NONNULL_BEGIN
24 
25 @interface RTCSessionDescription : NSObject
26 
27 /** The type of session description. */
28 @property(nonatomic, readonly) RTCSdpType type;
29 
30 /** The SDP string representation of this session description. */
31 @property(nonatomic, readonly) NSString *sdp;
32 
33 - (instancetype)init NS_UNAVAILABLE;
34 
35 /** Initialize a session description with a type and SDP string. */
36 - (instancetype)initWithType:(RTCSdpType)type sdp:(NSString *)sdp
37     NS_DESIGNATED_INITIALIZER;
38 
39 @end
40 
41 NS_ASSUME_NONNULL_END
42