查询通话状态
2017-06-15
查询每路电话的通话状态
查询每路电话的通话状态，需要查询与peerConnection对应的RTCIceConnectionState.这个状态是一个枚举类型，有以下类型：
typedef NS_ENUM(NSInteger, RTCIceConnectionState) {
RTCIceConnectionStateNew,
RTCIceConnectionStateChecking,
RTCIceConnectionStateConnected,
RTCIceConnectionStateCompleted,
RTCIceConnectionStateFailed,
RTCIceConnectionStateDisconnected,
RTCIceConnectionStateClosed,
RTCIceConnectionStateCount,
};
当peerConnection对应的ice的状态变为RTCIceConnectionStateConnected的时候，连接建立成功，并且能听到对方声音。
参考：RTCPeerConnection.iceConnectionState
代码：
@property (atomic,strong) NSMutableDictionary *callStateDict;
- (KTVUVoipUserState)tvuSelectCallState:(NSString *)phoneNumber
{
if (phoneNumber == NULL || phoneNumber == nil || [phoneNumber length] <= 0) {
log4cplus_error("WebRTC", "the phoneNumber is null..%s",__func__);
return KTVUVoipUserStateDisconnect;
}
NSString *senderID = [NSString stringWithFormat:@"ARDAMSa0%@",phoneNumber];
KTVUVoipUserState userState = KTVUVoipUserStateDisconnect;
@synchronized (self) {
userState = (KTVUVoipUserState)[[_callStateDict objectForKey:senderID] intValue];
}
return userState;
}
/** Called any time the IceConnectionState changes. */
- (void)peerConnection:(RTCPeerConnection *)peerConnection
didChangeIceConnectionState:(RTCIceConnectionState)newState
{
NSString *senderID =[peerConnection.senders objectAtIndex:0].senderId;
KTVUVoipUserState userState = KTVUVoipUserStateDisconnect;
switch (newState) {
case RTCIceConnectionStateNew:
case RTCIceConnectionStateChecking:
userState = KTVUVoipUserStateConnecting;
break;
case RTCIceConnectionStateConnected:
case RTCIceConnectionStateCompleted:
userState = KTVUVoipUserStateCalling;
break;
default:
break;
}
@synchronized (self) {
[_callStateDict setObject:[NSNumber numberWithInt:userState] forKey:senderID];
}
}