IEnumerator GetOffer()
{
var op = signaling.GetOffer(sessionId, lastTimeGetOfferRequest);
yield return(op);
if (op.webRequest.isNetworkError)
{
Debug.LogError($"Network Error: {op.webRequest.error}");
yield break;
}
var date = DateTimeExtension.ParseHttpDate(op.webRequest.GetResponseHeader("Date"));
lastTimeGetOfferRequest = date.ToJsMilliseconds();
var obj = op.webRequest.DownloadHandlerJson <OfferResDataList>().GetObject();
if (obj == null)
{
yield break;
}
foreach (var offer in obj.offers)
{
RTCSessionDescription _desc;
_desc.type = RTCSdpType.Offer;
_desc.sdp = offer.sdp;
var connectionId = offer.connectionId;
if (pcs.ContainsKey(connectionId))
{
continue;
}
var pc = new RTCPeerConnection();
pc.OnStatsDelivered = (data) => Debug.Log(data);
pcs.Add(offer.connectionId, pc);
pc.OnDataChannel = new DelegateOnDataChannel(channel => { OnDataChannel(pc, channel); });
pc.SetConfiguration(ref conf);
pc.OnIceCandidate = new DelegateOnIceCandidate(candidate => { StartCoroutine(OnIceCandidate(offer.connectionId, candidate)); });
pc.OnIceConnectionChange = new DelegateOnIceConnectionChange(state =>
{
if (state == RTCIceConnectionState.Disconnected)
{
pc.Close();
}
});
//make video bit rate starts at 16000kbits, and 160000kbits at max.
string pattern = @"(a=fmtp:\d+ .*level-asymmetry-allowed=.*)\r\n";
_desc.sdp = Regex.Replace(_desc.sdp, pattern, "$1;x-google-start-bitrate=16000;x-google-max-bitrate=160000\r\n");
pc.SetRemoteDescription(ref _desc);
foreach (var track in videoStream.GetTracks())
{
pc.AddTrack(track);
}
foreach (var track in audioStream.GetTracks())
{
pc.AddTrack(track);
}
StartCoroutine(Answer(connectionId));
}
}
IEnumerator GetCandidate()
{
var op = signaling.GetCandidate(sessionId, lastTimeGetCandidateRequest);
yield return(op);
if (op.webRequest.isNetworkError)
{
Debug.LogError($"Network Error: {op.webRequest.error}");
yield break;
}
var date = DateTimeExtension.ParseHttpDate(op.webRequest.GetResponseHeader("Date"));
lastTimeGetCandidateRequest = date.ToJsMilliseconds();
var obj = op.webRequest.DownloadHandlerJson <CandidateContainerResDataList>().GetObject();
if (obj == null)
{
yield break;
}
foreach (var candidateContainer in obj.candidates)
{
RTCPeerConnection pc;
if (!pcs.TryGetValue(candidateContainer.connectionId, out pc))
{
continue;
}
foreach (var candidate in candidateContainer.candidates)
{
RTCIceCandidate _candidate = default;
_candidate.candidate = candidate.candidate;
_candidate.sdpMLineIndex = candidate.sdpMLineIndex;
_candidate.sdpMid = candidate.sdpMid;
pcs[candidateContainer.connectionId].AddIceCandidate(ref _candidate);
}
}
}