This isn't FULLY functional, but it's what I've made thus far... I'm still working on a Ice Disconnect somewhere at least for me - welcome to test.

This commit is contained in:
2026-04-18 18:05:22 -04:00
parent b70189c619
commit a2608ffab9
8 changed files with 300 additions and 272 deletions

View File

@@ -610,11 +610,11 @@ public partial class MainPage : ContentPage
Console.WriteLine($"[{_username}] sent RTC signal: {rtcSignal.Type} -> {rtcSignal.ChannelId}"); Console.WriteLine($"[{_username}] sent RTC signal: {rtcSignal.Type} -> {rtcSignal.ChannelId}");
} //Remove? } //Remove?
//public async Task<string> GetRtcParticipants() // TODO: UNCOMMENT AND ADD public async Task<string> GetRtcParticipants()
//{ {
// var participants = await ServerAPI.GetRtcParticipantsAsync(_currentChannelId); var participants = await ServerAPI.GetRtcParticipantsAsync(_currentChannelId);
// return JsonSerializer.Serialize(participants); return JsonSerializer.Serialize(participants);
//} }
#endregion #endregion
private void OnSendMessageButtonClicked(object sender, EventArgs e) private void OnSendMessageButtonClicked(object sender, EventArgs e)

View File

@@ -35,11 +35,7 @@
<div id="localMediaStatus">Waiting for local media...</div> <div id="localMediaStatus">Waiting for local media...</div>
</div> </div>
<div style="display: inline-block; vertical-align: top;"> <div id="remoteMediaContainer" class="remote-media-container"></div>
<video id="remoteVideo" autoplay playsinline style="width: 320px; height: 240px; background: #111;"></video>
<div id="remoteVideoStatus">Remote video: waiting...</div>
<div id="remoteMediaStatus">Remote media: waiting...</div>
</div>
</div> </div>
<div style="margin-top: 10px;"> <div style="margin-top: 10px;">

View File

@@ -42,63 +42,6 @@ function hasAudioTrack() {
return !!localStream && localStream.getAudioTracks().length > 0; return !!localStream && localStream.getAudioTracks().length > 0;
} }
async function ensurePeerConnection() {
if (peerConnection) return;
peerConnection = new RTCPeerConnection({
iceServers: [{ urls: "stun:stun.l.google.com:19302" }]
});
peerConnection.onicecandidate = (event) => {
if (event.candidate) {
LogMessage("ICE candidate gathered");
}
};
peerConnection.ontrack = (event) => {
LogMessage("Remote track received");
const remoteVideo = document.getElementById("remoteVideo");
const remoteVideoStatus = document.getElementById("remoteVideoStatus");
const remoteMediaStatus = document.getElementById("remoteMediaStatus");
const stream = event.streams[0];
const hasVideo = stream.getVideoTracks().length > 0;
const hasAudio = stream.getAudioTracks().length > 0;
if (hasVideo) {
remoteVideo.srcObject = stream;
} else {
remoteVideo.srcObject = null;
}
if (remoteVideoStatus) {
remoteVideoStatus.textContent = hasVideo
? "Remote video: active"
: "Remote video: unavailable";
}
if (remoteMediaStatus) {
remoteMediaStatus.textContent = `Remote media: audio=${hasAudio} video=${hasVideo}`;
}
};
peerConnection.onconnectionstatechange = () => {
LogMessage("Connection state: " + peerConnection.connectionState);
const remoteMediaStatus = document.getElementById("remoteMediaStatus");
if (remoteMediaStatus && peerConnection.connectionState === "connected") {
remoteMediaStatus.textContent += " | connected";
}
};
peerConnection.oniceconnectionstatechange = () => {
LogMessage("ICE connection state: " + peerConnection.iceConnectionState);
};
peerConnection.onicegatheringstatechange = () => {
LogMessage("ICE gathering state: " + peerConnection.iceGatheringState);
};
} //Remove?
async function ensureLocalMedia(forceReload = false) { async function ensureLocalMedia(forceReload = false) {
const localMediaStatus = document.getElementById("localMediaStatus"); const localMediaStatus = document.getElementById("localMediaStatus");
const localVideoStatus = document.getElementById("localVideoStatus"); const localVideoStatus = document.getElementById("localVideoStatus");
@@ -174,31 +117,34 @@ async function ensureLocalMedia(forceReload = false) {
} }
} }
async function applyLocalStreamToPeerConnection() { async function applyLocalStreamToPeerConnections() {
if (!peerConnection || !localStream) return; if (!localStream) return;
const senders = peerConnection.getSenders();
const audioTrack = localStream.getAudioTracks()[0] || null; const audioTrack = localStream.getAudioTracks()[0] || null;
const videoTrack = localStream.getVideoTracks()[0] || null; const videoTrack = localStream.getVideoTracks()[0] || null;
const audioSender = senders.find(s => s.track && s.track.kind === "audio"); for (const username of Object.keys(peerConnections)) {
const videoSender = senders.find(s => s.track && s.track.kind === "video"); const pc = peerConnections[username];
const senders = pc.getSenders();
if (audioSender) { const audioSender = senders.find(s => s.track && s.track.kind === "audio");
await audioSender.replaceTrack(audioTrack); const videoSender = senders.find(s => s.track && s.track.kind === "video");
LogMessage("Replaced audio track on peer connection");
} else if (audioTrack) {
peerConnection.addTrack(audioTrack, localStream);
LogMessage("Added audio track to peer connection");
}
if (videoSender) { if (audioSender) {
await videoSender.replaceTrack(videoTrack); await audioSender.replaceTrack(audioTrack);
LogMessage("Replaced video track on peer connection"); LogMessage(`Replaced audio track for ${username}`);
} else if (videoTrack) { } else if (audioTrack) {
peerConnection.addTrack(videoTrack, localStream); pc.addTrack(audioTrack, localStream);
LogMessage("Added video track to peer connection"); LogMessage(`Added audio track for ${username}`);
}
if (videoSender) {
await videoSender.replaceTrack(videoTrack);
LogMessage(`Replaced video track for ${username}`);
} else if (videoTrack) {
pc.addTrack(videoTrack, localStream);
LogMessage(`Added video track for ${username}`);
}
} }
} }
@@ -206,238 +152,188 @@ async function refreshDevicesAndPreview() {
await loadDevices(); await loadDevices();
await ensureLocalMedia(true); await ensureLocalMedia(true);
if (peerConnection) { if (Object.keys(peerConnections).length > 0) {
await applyLocalStreamToPeerConnection(); await applyLocalStreamToPeerConnections();
} }
} }
async function joinChannelCall() { async function joinChannelCall() {
LogMessage("Current username: " + currentUsername); LogMessage("Current username: " + currentUsername);
LogMessage("Current channel: " + currentChannelId); LogMessage("Current channel: " + currentChannelId);
// LogMessage("Joining RTCChannel");
let active = await window.HybridWebView.InvokeDotNet("JoinRtcChannel");
await channelCallJoin(active);
// LogMessage("Joined RTCChannel");
// return;
// try {
// if (!currentChannelId) {
// LogMessage("No current channel set.");
// return;
// }
//
// await ensurePeerConnection();
// await ensureLocalMedia();
//
// LogMessage(`Joining call with media: audio=${hasAudioTrack()} video=${hasVideoTrack()}`);
//
// const payload = {
// type: "rtc_join",
// from: currentUsername,
// channelId: currentChannelId
// };
//
// LogMessage("Requesting join for channel " + currentChannelId);
// await window.HybridWebView.InvokeDotNet("SendRtcSignal", [JSON.stringify(payload)]);
// } catch (err) {
// LogMessage("joinChannelCall failed: " + err);
// }
} //Combine with channelCallJoin
async function ensurePeerConnectionForUser(username) await window.HybridWebView.InvokeDotNet("JoinRtcChannel");
{
if (peerConnection) return;
peerConnection = new RTCPeerConnection(configuration);
peerConnection.onicegatheringstatechange = () => {
console.log(`ICE gathering state changed: ${peerConnection.iceGatheringState}`);
};
peerConnection.onconnectionstatechange = () => {
console.log(`Connection state change: ${peerConnection.connectionState}`);
};
peerConnection.onsignalingstatechange = () => {
console.log(`Signaling state change: ${peerConnection.signalingState}`);
};
peerConnection.oniceconnectionstatechange = () => {
console.log(`ICE connection state change: ${peerConnection.iceConnectionState}`);
};
peerConnection.onicecandidate = async (event) => {
console.log(`Ice Candidate: ${JSON.stringify(event.candidate)}`);
// LogMessage(`Ice Candidate: ${JSON.stringify(event.candidate)}`);
await window.HybridWebView.InvokeDotNet("WriteIceCandidate", [JSON.stringify(event.candidate)]);
//await IceCandidateAdded(event.candidate);
};
peerConnection.ontrack = (event) => {
LogMessage("Remote track received");
const remoteVideo = document.getElementById("remoteVideo");
const remoteVideoStatus = document.getElementById("remoteVideoStatus");
const remoteMediaStatus = document.getElementById("remoteMediaStatus");
const stream = event.streams[0];
const hasVideo = stream.getVideoTracks().length > 0;
const hasAudio = stream.getAudioTracks().length > 0;
if (hasVideo) {
remoteVideo.srcObject = stream;
} else {
remoteVideo.srcObject = null;
}
if (remoteVideoStatus) {
remoteVideoStatus.textContent = hasVideo
? "Remote video: active"
: "Remote video: unavailable";
}
if (remoteMediaStatus) {
remoteMediaStatus.textContent = `Remote media: audio=${hasAudio} video=${hasVideo}`;
}
};
}
async function channelCallJoin(activeCall)
{
// LogMessage("Active call: " + activeCall);
await ensurePeerConnectionForUser();
await ensureLocalMedia(); await ensureLocalMedia();
await applyLocalStreamToPeerConnection();
if (activeCall)
{
const rawJson = await window.HybridWebView.InvokeDotNet("GetRtcOffer");
const offer = typeof rawJson === "string" ? JSON.parse(rawJson) : rawJson;
await peerConnection.setRemoteDescription(offer);
const answer = await peerConnection.createAnswer();
await peerConnection.setLocalDescription(answer);
// LogMessage("Joining call with media answer: " + JSON.stringify(answer)); const rawParticipants = await window.HybridWebView.InvokeDotNet("GetRtcParticipants");
// LogMessage("Calling C# WriteRtcAnswer with: " + JSON.stringify(answer)); const participants = typeof rawParticipants === "string"
await window.HybridWebView.InvokeDotNet("WriteRtcAnswer", [JSON.stringify(answer)]); ? JSON.parse(rawParticipants)
} : rawParticipants;
else
{ LogMessage("Participants: " + JSON.stringify(participants)); // TODO: Remove
const offer = await peerConnection.createOffer();
await peerConnection.setLocalDescription(offer); for (const username of participants) {
if (username === currentUsername) continue;
await window.HybridWebView.InvokeDotNet("WriteRtcOffer", [JSON.stringify(offer)]);
LogMessage(`Joining call with media offer: ${JSON.stringify(offer)}`); const pc = await ensurePeerConnectionForUser(username);
const offer = await pc.createOffer();
await pc.setLocalDescription(offer);
const payload = {
type: "rtc_offer",
from: currentUsername,
to: username,
channelId: currentChannelId,
sdp: offer.sdp
};
await window.HybridWebView.InvokeDotNet("SendRtcSignal", [JSON.stringify(payload)]);
LogMessage(`Sent offer to ${username}`);
} }
} }
async function AnswerCallbackJS(answer)
{ async function ensurePeerConnectionForUser(username) {
answer.sdp = answer.sdp.replaceAll("(rn)", "\r\n"); if (peerConnections[username]) return peerConnections[username];
// LogMessage("Answer: " + JSON.stringify(answer));
const pc = new RTCPeerConnection(configuration);
// LogMessage("RemoteDescription: " + peerConnection.currentRemoteDescription); peerConnections[username] = pc;
if (!peerConnection.currentRemoteDescription && answer) pc.onicegatheringstatechange = () => {
{ console.log(`ICE gathering state changed for ${username}: ${pc.iceGatheringState}`);
LogMessage("Current answer: " + JSON.stringify(answer)); };
const desc = new RTCSessionDescription(answer);
await peerConnection.setRemoteDescription(desc); pc.onconnectionstatechange = () => {
for (const candidate of candidateQueue) { console.log(`Connection state change for ${username}: ${pc.connectionState}`);
await peerConnection.addIceCandidate(candidate); };
pc.onsignalingstatechange = () => {
console.log(`Signaling state change for ${username}: ${pc.signalingState}`);
};
pc.oniceconnectionstatechange = () => {
console.log(`ICE connection state change for ${username}: ${pc.iceConnectionState}`);
};
pc.onicecandidate = async (event) => {
if (!event.candidate) return;
await window.HybridWebView.InvokeDotNet("WriteIceCandidate", [JSON.stringify(event.candidate)]);
};
pc.ontrack = (event) => {
LogMessage(`Remote track received from ${username}`);
if (!remoteStreams[username]) {
remoteStreams[username] = new MediaStream();
}
const stream = remoteStreams[username];
event.streams[0].getTracks().forEach(track => {
if (!stream.getTracks().some(t => t.id === track.id)) {
stream.addTrack(track);
}
});
const remoteVideo = ensureRemoteTile(username);
if (remoteVideo) {
remoteVideo.srcObject = stream;
}
};
if (localStream) {
const existingKinds = pc.getSenders()
.map(sender => sender.track?.kind)
.filter(Boolean);
for (const track of localStream.getTracks()) {
if (!existingKinds.includes(track.kind)) {
pc.addTrack(track, localStream);
}
} }
} }
}
async function IceCandidateAdded(candidate) return pc;
{ }
if (peerConnection.currentRemoteDescription) {
await peerConnection.addIceCandidate(candidate); async function RtcLeaveCall() { // TODO: Just a minimal function so it's not empty.
// LogMessage("ICE CANDIDATE ADDED: " + JSON.stringify(candidate)); for (const username of Object.keys(peerConnections)) {
} peerConnections[username].close();
else { removeRemoteTile(username);
// LogMessage("RemoteDescription Missing") }
candidateQueue.push(candidate);
peerConnections = {};
} remoteStreams = {};
candidateQueue = [];
LogMessage("RTC call cleaned up");
}
function removeParticipant(username) {
const pc = peerConnections[username];
if (pc) {
pc.close();
delete peerConnections[username];
}
delete remoteStreams[username];
removeRemoteTile(username);
LogMessage(`Removed participant ${username}`);
} }
async function RtcLeaveCall()
{}
async function handleRtcSignal(rawJson) { async function handleRtcSignal(rawJson) {
try { try {
const msg = typeof rawJson === "string" ? JSON.parse(rawJson) : rawJson; const msg = typeof rawJson === "string" ? JSON.parse(rawJson) : rawJson;
LogMessage("Received signal: " + msg.type + " from " + msg.from + " in " + msg.channelId); LogMessage("Received signal: " + msg.type + " from " + msg.from + " in " + msg.channelId);
await ensurePeerConnection(); if (!msg.from || msg.from === currentUsername) return;
if (msg.type === "rtc_join_state") { const pc = await ensurePeerConnectionForUser(msg.from);
if (msg.isInitiator) {
LogMessage("No active call found. Becoming initiator.");
const offer = await peerConnection.createOffer();
await peerConnection.setLocalDescription(offer);
// await waitForIceGatheringComplete(peerConnection);
const payload = {
type: "rtc_offer",
from: currentUsername,
channelId: currentChannelId,
sdp: peerConnection.localDescription.sdp
};
LogMessage("Sending offer to channel " + currentChannelId);
await window.HybridWebView.InvokeDotNet("SendRtcSignal", [JSON.stringify(payload)]);
} else {
LogMessage("Active call exists. Waiting for stored offer.");
}
return;
}
if (msg.type === "rtc_offer") { if (msg.type === "rtc_offer") {
LogMessage("Incoming channel call offer from " + msg.from);
await ensureLocalMedia(); await ensureLocalMedia();
LogMessage(`Answering call with media: audio=${hasAudioTrack()} video=${hasVideoTrack()}`); await pc.setRemoteDescription({
LogMessage("Applying remote offer");
await peerConnection.setRemoteDescription({
type: "offer", type: "offer",
sdp: msg.sdp sdp: msg.sdp
}); });
const answer = await peerConnection.createAnswer(); const answer = await pc.createAnswer();
await peerConnection.setLocalDescription(answer); await pc.setLocalDescription(answer);
// await waitForIceGatheringComplete(peerConnection);
const payload = { const payload = {
type: "rtc_answer", type: "rtc_answer",
from: currentUsername, from: currentUsername,
to: msg.from,
channelId: msg.channelId, channelId: msg.channelId,
sdp: peerConnection.localDescription.sdp sdp: answer.sdp
}; };
LogMessage("Sending answer to channel " + msg.channelId);
await window.HybridWebView.InvokeDotNet("SendRtcSignal", [JSON.stringify(payload)]); await window.HybridWebView.InvokeDotNet("SendRtcSignal", [JSON.stringify(payload)]);
LogMessage(`Sent answer to ${msg.from}`);
return; return;
} }
if (msg.type === "rtc_answer") { if (msg.type === "rtc_answer") {
LogMessage("Applying remote answer"); await pc.setRemoteDescription({
await peerConnection.setRemoteDescription({
type: "answer", type: "answer",
sdp: msg.sdp sdp: msg.sdp
}); });
LogMessage("Remote answer applied"); LogMessage(`Remote answer applied for ${msg.from}`);
return; return;
} }
if (msg.type === "rtc_ice_candidate") { if (msg.type === "rtc_ice_candidate") {
LogMessage("Applying remote ICE candidate"); await pc.addIceCandidate({
await peerConnection.addIceCandidate({
candidate: msg.candidate, candidate: msg.candidate,
sdpMid: msg.sdpMid, sdpMid: msg.sdpMid,
sdpMLineIndex: msg.sdpMLineIndex sdpMLineIndex: msg.sdpMLineIndex
}); });
LogMessage("Remote ICE candidate applied"); LogMessage(`Remote ICE candidate applied for ${msg.from}`);
return; return;
} }
@@ -445,7 +341,7 @@ async function handleRtcSignal(rawJson) {
} catch (err) { } catch (err) {
LogMessage("handleRtcSignal failed: " + err); LogMessage("handleRtcSignal failed: " + err);
} }
} //Remove? }
async function loadDevices() { async function loadDevices() {
try { try {
@@ -503,7 +399,7 @@ function wireDeviceSelectors() {
cameraSelect.onchange = async () => { cameraSelect.onchange = async () => {
LogMessage("Camera changed"); LogMessage("Camera changed");
await ensureLocalMedia(true); await ensureLocalMedia(true);
await applyLocalStreamToPeerConnection(); await applyLocalStreamToPeerConnections();
}; };
} }
@@ -511,7 +407,7 @@ function wireDeviceSelectors() {
micSelect.onchange = async () => { micSelect.onchange = async () => {
LogMessage("Microphone changed"); LogMessage("Microphone changed");
await ensureLocalMedia(true); await ensureLocalMedia(true);
await applyLocalStreamToPeerConnection(); await applyLocalStreamToPeerConnections();
}; };
} }
} }
@@ -531,6 +427,42 @@ async function waitForIceGatheringComplete(pc) {
}); });
} //Remove? } //Remove?
function ensureRemoteTile(username) {
let tile = document.getElementById(`remote-tile-${username}`);
if (tile) {
return tile.querySelector("video");
}
const container = document.getElementById("remoteMediaContainer");
if (!container) return null;
tile = document.createElement("div");
tile.id = `remote-tile-${username}`;
tile.className = "remote-tile";
const video = document.createElement("video");
video.id = `remote-video-${username}`;
video.autoplay = true;
video.playsInline = true;
const label = document.createElement("div");
label.className = "remote-label";
label.textContent = username;
tile.appendChild(video);
tile.appendChild(label);
container.appendChild(tile);
return video;
}
function removeRemoteTile(username) {
const tile = document.getElementById(`remote-tile-${username}`);
if (tile) {
tile.remove();
}
}
window.handleRtcSignal = handleRtcSignal; window.handleRtcSignal = handleRtcSignal;
window.addEventListener("HybridWebViewMessageReceived", function (e) { window.addEventListener("HybridWebViewMessageReceived", function (e) {

View File

@@ -111,6 +111,19 @@ public class ServerAPI
var json = await response.Content.ReadAsStringAsync(); var json = await response.Content.ReadAsStringAsync();
return JsonSerializer.Deserialize<RtcDescription>(json); return JsonSerializer.Deserialize<RtcDescription>(json);
} }
public static async Task<List<string>> GetRtcParticipantsAsync(string? channelId)
{
if (string.IsNullOrWhiteSpace(channelId))
return new List<string>();
HttpResponseMessage response = await client.GetAsync($"api/rtc/participants/{channelId}");
response.EnsureSuccessStatusCode();
var json = await response.Content.ReadAsStringAsync();
return JsonSerializer.Deserialize<List<string>>(json) ?? new List<string>();
}
} }
public class RtcDescription public class RtcDescription

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@@ -71,11 +71,10 @@ public static class RtcEndpoints
return Results.Ok(await rtcCallService.GetAnswersAsync(channelId)); return Results.Ok(await rtcCallService.GetAnswersAsync(channelId));
}); });
//app.MapGet("/api/rtc/participants/{channelId}", (string channelId) => // TODO: UNCOMMENT AND ADD app.MapGet("/api/rtc/participants/{channelId}", (string channelId) =>
//{ {
// var participants = RtcChannelPresenceService.GetUsernamesInChannel(channelId); return Results.Ok(RtcChannelPresenceService.GetUsersInChannel(channelId));
// return Results.Ok(participants); });
//});
// Return the latest answer stored for the specified channel. // Return the latest answer stored for the specified channel.
app.MapGet("/api/rtc/answer/{channelId}", async (string channelId, RtcCallService rtcCallService) => app.MapGet("/api/rtc/answer/{channelId}", async (string channelId, RtcCallService rtcCallService) =>

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@@ -69,9 +69,72 @@ public class ChatSocketBehavior : WebSocketBehavior
return; return;
} }
if (IsEncryptedRtcSignal(msg))
{
HandleEncryptedRtcSignal(msg);
return;
}
HandleEncryptedChatMessage(msg); HandleEncryptedChatMessage(msg);
} }
private static bool IsEncryptedRtcSignal(string msg)
{
try
{
using var doc = JsonDocument.Parse(msg);
var root = doc.RootElement;
if (!root.TryGetProperty("Type", out var typeProp))
return false;
var type = (SignalType)typeProp.GetInt32();
return type == SignalType.EncryptedSignal;
}
catch
{
return false;
}
}
private void HandleEncryptedRtcSignal(string msg)
{
Console.WriteLine("RTC SIGNAL HIT");
SocketRtcSignalMessage? clientPayload;
try
{
clientPayload = JsonSerializer.Deserialize<SocketRtcSignalMessage>(msg);
}
catch
{
Console.WriteLine("Failed to parse encrypted RTC signal payload.");
return;
}
if (clientPayload is null || clientPayload.Type != SignalType.EncryptedSignal)
return;
if (string.IsNullOrWhiteSpace(clientPayload.ChannelId))
{
Console.WriteLine("Encrypted RTC signal missing channel id.");
return;
}
var sessionIds = RtcChannelPresenceService.GetSessionsInChannel(clientPayload.ChannelId);
foreach (var sessionId in sessionIds)
{
if (sessionId == ID)
continue;
Sessions.SendTo(JsonSerializer.Serialize(clientPayload), sessionId);
}
Console.WriteLine($"Forwarded encrypted RTC signal from {clientPayload.SenderUsername} to channel {clientPayload.ChannelId}");
}
/// <summary> /// <summary>
/// ///
/// </summary> /// </summary>

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@@ -35,6 +35,11 @@ public static class RtcChannelPresenceService
.Select(x => x.Key) .Select(x => x.Key)
.ToList(); .ToList();
} }
public static List<string> GetUsernamesInChannel(string channelId)
{
return GetUsersInChannel(channelId).ToList();
}
public static IReadOnlyList<string> GetUsersInChannel(string channelId) public static IReadOnlyList<string> GetUsersInChannel(string channelId)
{ {

View File

@@ -1,4 +1,6 @@
using SurrealDb.Net.Models; using System.Text.Json.Serialization;
using RelayShared.Rtc;
using SurrealDb.Net.Models;
#region Resharper Stuff #region Resharper Stuff
// ReSharper disable ClassNeverInstantiated.Global // ReSharper disable ClassNeverInstantiated.Global
@@ -26,13 +28,31 @@ public enum SignalType
public sealed class RtcSignalMessage public sealed class RtcSignalMessage
{ {
[JsonPropertyName("type")]
public SignalType Type { get; set; } public SignalType Type { get; set; }
[JsonPropertyName("from")]
public string From { get; set; } = string.Empty; public string From { get; set; } = string.Empty;
[JsonPropertyName("to")]
public string To { get; set; } = string.Empty;
[JsonPropertyName("channelId")]
public string ChannelId { get; set; } = string.Empty; public string ChannelId { get; set; } = string.Empty;
[JsonPropertyName("sdp")]
public string? Sdp { get; set; } public string? Sdp { get; set; }
[JsonPropertyName("candidate")]
public string? Candidate { get; set; } public string? Candidate { get; set; }
[JsonPropertyName("sdpMid")]
public string? SdpMid { get; set; } public string? SdpMid { get; set; }
[JsonPropertyName("sdpMLineIndex")]
public int? SdpMLineIndex { get; set; } public int? SdpMLineIndex { get; set; }
[JsonPropertyName("isInitiator")]
public bool IsInitiator { get; set; } public bool IsInitiator { get; set; }
} }