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| 1 /* | |
| 2 * Copyright 2014 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 "RTCIceCandidate+JSON.h" | |
| 12 | |
| 13 #import "WebRTC/RTCLogging.h" | |
| 14 | |
| 15 static NSString const *kRTCICECandidateTypeKey = @"type"; | |
| 16 static NSString const *kRTCICECandidateTypeValue = @"candidate"; | |
| 17 static NSString const *kRTCICECandidateMidKey = @"id"; | |
| 18 static NSString const *kRTCICECandidateMLineIndexKey = @"label"; | |
| 19 static NSString const *kRTCICECandidateSdpKey = @"candidate"; | |
| 20 static NSString const *kRTCICECandidatesTypeKey = @"candidates"; | |
| 21 | |
| 22 | |
| 23 @implementation RTCIceCandidate (JSON) | |
| 24 | |
| 25 + (RTCIceCandidate *)candidateFromJSONDictionary:(NSDictionary *)dictionary { | |
| 26 NSString *mid = dictionary[kRTCICECandidateMidKey]; | |
| 27 NSString *sdp = dictionary[kRTCICECandidateSdpKey]; | |
| 28 NSNumber *num = dictionary[kRTCICECandidateMLineIndexKey]; | |
| 29 NSInteger mLineIndex = [num integerValue]; | |
| 30 return [[RTCIceCandidate alloc] initWithSdp:sdp | |
| 31 sdpMLineIndex:mLineIndex | |
| 32 sdpMid:mid]; | |
| 33 } | |
| 34 | |
| 35 + (NSData *)JSONDataForIceCandidates:(NSArray<RTCIceCandidate *> *)candidates | |
| 36 withType:(NSString *)typeValue { | |
| 37 NSMutableArray *jsonCandidates = | |
| 38 [NSMutableArray arrayWithCapacity:candidates.count]; | |
| 39 for (RTCIceCandidate *candidate in candidates) { | |
| 40 NSDictionary *jsonCandidate = [candidate JSONDictionary]; | |
| 41 [jsonCandidates addObject:jsonCandidate]; | |
| 42 } | |
| 43 NSDictionary *json = @{ | |
| 44 kRTCICECandidateTypeKey : typeValue, | |
| 45 kRTCICECandidatesTypeKey : jsonCandidates | |
| 46 }; | |
| 47 NSError *error = nil; | |
| 48 NSData *data = | |
| 49 [NSJSONSerialization dataWithJSONObject:json | |
| 50 options:NSJSONWritingPrettyPrinted | |
| 51 error:&error]; | |
| 52 if (error) { | |
| 53 RTCLogError(@"Error serializing JSON: %@", error); | |
| 54 return nil; | |
| 55 } | |
| 56 return data; | |
| 57 } | |
| 58 | |
| 59 + (NSArray<RTCIceCandidate *> *)candidatesFromJSONDictionary: | |
| 60 (NSDictionary *)dictionary { | |
| 61 NSArray *jsonCandidates = dictionary[kRTCICECandidatesTypeKey]; | |
| 62 NSMutableArray<RTCIceCandidate *> *candidates = | |
| 63 [NSMutableArray arrayWithCapacity:jsonCandidates.count]; | |
| 64 for (NSDictionary *jsonCandidate in jsonCandidates) { | |
| 65 RTCIceCandidate *candidate = | |
| 66 [RTCIceCandidate candidateFromJSONDictionary:jsonCandidate]; | |
| 67 [candidates addObject:candidate]; | |
| 68 } | |
| 69 return candidates; | |
| 70 } | |
| 71 | |
| 72 - (NSData *)JSONData { | |
| 73 NSDictionary *json = @{ | |
| 74 kRTCICECandidateTypeKey : kRTCICECandidateTypeValue, | |
| 75 kRTCICECandidateMLineIndexKey : @(self.sdpMLineIndex), | |
| 76 kRTCICECandidateMidKey : self.sdpMid, | |
| 77 kRTCICECandidateSdpKey : self.sdp | |
| 78 }; | |
| 79 NSError *error = nil; | |
| 80 NSData *data = | |
| 81 [NSJSONSerialization dataWithJSONObject:json | |
| 82 options:NSJSONWritingPrettyPrinted | |
| 83 error:&error]; | |
| 84 if (error) { | |
| 85 RTCLogError(@"Error serializing JSON: %@", error); | |
| 86 return nil; | |
| 87 } | |
| 88 return data; | |
| 89 } | |
| 90 | |
| 91 - (NSDictionary *)JSONDictionary{ | |
| 92 NSDictionary *json = @{ | |
| 93 kRTCICECandidateMLineIndexKey : @(self.sdpMLineIndex), | |
| 94 kRTCICECandidateMidKey : self.sdpMid, | |
| 95 kRTCICECandidateSdpKey : self.sdp | |
| 96 }; | |
| 97 return json; | |
| 98 } | |
| 99 | |
| 100 @end | |
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