talk-ios/ThirdParty/AppRTC/RTCIceCandidate+JSON.m

101 строка
3.4 KiB
Objective-C

/*
* Copyright 2014 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 "RTCIceCandidate+JSON.h"
#import "WebRTC/RTCLogging.h"
static NSString const *kRTCICECandidateTypeKey = @"type";
static NSString const *kRTCICECandidateTypeValue = @"candidate";
static NSString const *kRTCICECandidateMidKey = @"sdpMid";
static NSString const *kRTCICECandidateMLineIndexKey = @"sdpMLineIndex";
static NSString const *kRTCICECandidateSdpKey = @"candidate";
static NSString const *kRTCICECandidatesTypeKey = @"candidates";
@implementation RTCIceCandidate (JSON)
+ (RTCIceCandidate *)candidateFromJSONDictionary:(NSDictionary *)dictionary {
NSString *mid = dictionary[kRTCICECandidateMidKey];
NSString *sdp = dictionary[kRTCICECandidateSdpKey];
NSNumber *num = dictionary[kRTCICECandidateMLineIndexKey];
NSInteger mLineIndex = [num integerValue];
return [[RTCIceCandidate alloc] initWithSdp:sdp
sdpMLineIndex:mLineIndex
sdpMid:mid];
}
+ (NSData *)JSONDataForIceCandidates:(NSArray<RTCIceCandidate *> *)candidates
withType:(NSString *)typeValue {
NSMutableArray *jsonCandidates =
[NSMutableArray arrayWithCapacity:candidates.count];
for (RTCIceCandidate *candidate in candidates) {
NSDictionary *jsonCandidate = [candidate JSONDictionary];
[jsonCandidates addObject:jsonCandidate];
}
NSDictionary *json = @{
kRTCICECandidateTypeKey : typeValue,
kRTCICECandidatesTypeKey : jsonCandidates
};
NSError *error = nil;
NSData *data =
[NSJSONSerialization dataWithJSONObject:json
options:NSJSONWritingPrettyPrinted
error:&error];
if (error) {
RTCLogError(@"Error serializing JSON: %@", error);
return nil;
}
return data;
}
+ (NSArray<RTCIceCandidate *> *)candidatesFromJSONDictionary:
(NSDictionary *)dictionary {
NSArray *jsonCandidates = dictionary[kRTCICECandidatesTypeKey];
NSMutableArray<RTCIceCandidate *> *candidates =
[NSMutableArray arrayWithCapacity:jsonCandidates.count];
for (NSDictionary *jsonCandidate in jsonCandidates) {
RTCIceCandidate *candidate =
[RTCIceCandidate candidateFromJSONDictionary:jsonCandidate];
[candidates addObject:candidate];
}
return candidates;
}
- (NSData *)JSONData {
NSDictionary *json = @{
kRTCICECandidateTypeKey : kRTCICECandidateTypeValue,
kRTCICECandidateMLineIndexKey : @(self.sdpMLineIndex),
kRTCICECandidateMidKey : self.sdpMid,
kRTCICECandidateSdpKey : self.sdp
};
NSError *error = nil;
NSData *data =
[NSJSONSerialization dataWithJSONObject:json
options:NSJSONWritingPrettyPrinted
error:&error];
if (error) {
RTCLogError(@"Error serializing JSON: %@", error);
return nil;
}
return data;
}
- (NSDictionary *)JSONDictionary {
NSDictionary *json = @{
kRTCICECandidateMLineIndexKey : @(self.sdpMLineIndex),
kRTCICECandidateMidKey : self.sdpMid,
kRTCICECandidateSdpKey : self.sdp
};
return json;
}
@end