387 lines
14 KiB
C#
387 lines
14 KiB
C#
using System;
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using UnityEngine;
|
|
using UnityEngine.UI;
|
|
using Random = UnityEngine.Random;
|
|
|
|
namespace Unity.WebRTC.Samples
|
|
{
|
|
class MultiVideoReceiveSample : MonoBehaviour
|
|
{
|
|
#pragma warning disable 0649
|
|
[SerializeField] private Button callButton;
|
|
[SerializeField] private Button hangUpButton;
|
|
[SerializeField] private Button addVideoObjectButton;
|
|
[SerializeField] private Button addTracksButton;
|
|
[SerializeField] private Transform cameraParent;
|
|
[SerializeField] private Transform sourceImageParent;
|
|
[SerializeField] private Transform receiveImageParent;
|
|
[SerializeField] private List<Camera> cameras;
|
|
[SerializeField] private List<RawImage> sourceImages;
|
|
[SerializeField] private List<RawImage> receiveImages;
|
|
[SerializeField] private Transform rotateObject;
|
|
#pragma warning restore 0649
|
|
|
|
private RTCPeerConnection _pc1, _pc2;
|
|
private List<VideoStreamTrack> videoStreamTrackList;
|
|
private List<RTCRtpSender> sendingSenderList;
|
|
private DelegateOnIceConnectionChange pc1OnIceConnectionChange;
|
|
private DelegateOnIceConnectionChange pc2OnIceConnectionChange;
|
|
private DelegateOnIceCandidate pc1OnIceCandidate;
|
|
private DelegateOnIceCandidate pc2OnIceCandidate;
|
|
private DelegateOnTrack pc2Ontrack;
|
|
private DelegateOnNegotiationNeeded pc1OnNegotiationNeeded;
|
|
private DelegateOnNegotiationNeeded pc2OnNegotiationNeeded;
|
|
private bool videoUpdateStarted;
|
|
private int objectIndex = 0;
|
|
private int videoIndex = 0;
|
|
|
|
private void Awake()
|
|
{
|
|
callButton.onClick.AddListener(Call);
|
|
hangUpButton.onClick.AddListener(HangUp);
|
|
addVideoObjectButton.onClick.AddListener(AddVideoObject);
|
|
addTracksButton.onClick.AddListener(AddTracks);
|
|
}
|
|
|
|
private void Start()
|
|
{
|
|
videoStreamTrackList = new List<VideoStreamTrack>();
|
|
sendingSenderList = new List<RTCRtpSender>();
|
|
callButton.interactable = true;
|
|
hangUpButton.interactable = false;
|
|
|
|
pc1OnIceConnectionChange = state => { OnIceConnectionChange(_pc1, state); };
|
|
pc2OnIceConnectionChange = state => { OnIceConnectionChange(_pc2, state); };
|
|
pc1OnIceCandidate = candidate => { OnIceCandidate(_pc1, candidate); };
|
|
pc2OnIceCandidate = candidate => { OnIceCandidate(_pc2, candidate); };
|
|
pc2Ontrack = e =>
|
|
{
|
|
if (e.Track is VideoStreamTrack track)
|
|
{
|
|
track.OnVideoReceived += tex =>
|
|
{
|
|
receiveImages[videoIndex].texture = tex;
|
|
videoIndex++;
|
|
};
|
|
}
|
|
};
|
|
|
|
pc1OnNegotiationNeeded = () => { StartCoroutine(PeerNegotiationNeeded(_pc1)); };
|
|
pc2OnNegotiationNeeded = () => { StartCoroutine(PeerNegotiationNeeded(_pc2)); };
|
|
}
|
|
|
|
private void Update()
|
|
{
|
|
if (rotateObject != null)
|
|
{
|
|
rotateObject.Rotate(1, 2, 3);
|
|
}
|
|
}
|
|
|
|
private static RTCConfiguration GetSelectedSdpSemantics()
|
|
{
|
|
RTCConfiguration config = default;
|
|
config.iceServers = new[] { new RTCIceServer { urls = new[] { "stun:stun.l.google.com:19302" } } };
|
|
|
|
return config;
|
|
}
|
|
|
|
private void OnIceConnectionChange(RTCPeerConnection pc, RTCIceConnectionState state)
|
|
{
|
|
switch (state)
|
|
{
|
|
case RTCIceConnectionState.New:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: New");
|
|
break;
|
|
case RTCIceConnectionState.Checking:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Checking");
|
|
break;
|
|
case RTCIceConnectionState.Closed:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Closed");
|
|
break;
|
|
case RTCIceConnectionState.Completed:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Completed");
|
|
break;
|
|
case RTCIceConnectionState.Connected:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Connected");
|
|
break;
|
|
case RTCIceConnectionState.Disconnected:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Disconnected");
|
|
break;
|
|
case RTCIceConnectionState.Failed:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Failed");
|
|
break;
|
|
case RTCIceConnectionState.Max:
|
|
Debug.Log($"{GetName(pc)} IceConnectionState: Max");
|
|
break;
|
|
default:
|
|
throw new ArgumentOutOfRangeException(nameof(state), state, null);
|
|
}
|
|
}
|
|
|
|
IEnumerator PeerNegotiationNeeded(RTCPeerConnection pc)
|
|
{
|
|
Debug.Log($"{GetName(pc)} createOffer start");
|
|
var op = pc.CreateOffer();
|
|
yield return op;
|
|
|
|
if (!op.IsError)
|
|
{
|
|
if (pc.SignalingState != RTCSignalingState.Stable)
|
|
{
|
|
Debug.LogError($"{GetName(pc)} signaling state is not stable.");
|
|
yield break;
|
|
}
|
|
|
|
yield return StartCoroutine(OnCreateOfferSuccess(pc, op.Desc));
|
|
}
|
|
else
|
|
{
|
|
OnCreateSessionDescriptionError(op.Error);
|
|
}
|
|
}
|
|
|
|
private void AddVideoObject()
|
|
{
|
|
var newCam = new GameObject($"Camera{objectIndex}").AddComponent<Camera>();
|
|
newCam.backgroundColor = Random.ColorHSV();
|
|
newCam.transform.SetParent(cameraParent);
|
|
cameras.Add(newCam);
|
|
var newSource = new GameObject($"SourceImage{objectIndex}").AddComponent<RawImage>();
|
|
newSource.transform.SetParent(sourceImageParent);
|
|
sourceImages.Add(newSource);
|
|
var newReceive = new GameObject($"ReceiveImage{objectIndex}").AddComponent<RawImage>();
|
|
newReceive.transform.SetParent(receiveImageParent);
|
|
receiveImages.Add(newReceive);
|
|
|
|
try
|
|
{
|
|
videoStreamTrackList.Add(newCam.CaptureStreamTrack(WebRTCSettings.StreamSize.x, WebRTCSettings.StreamSize.y));
|
|
newSource.texture = newCam.targetTexture;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Debug.LogError(e.Message);
|
|
HangUp();
|
|
return;
|
|
}
|
|
|
|
objectIndex++;
|
|
addTracksButton.interactable = true;
|
|
}
|
|
|
|
private void Call()
|
|
{
|
|
callButton.interactable = false;
|
|
hangUpButton.interactable = true;
|
|
addVideoObjectButton.interactable = true;
|
|
addTracksButton.interactable = false;
|
|
|
|
Debug.Log("GetSelectedSdpSemantics");
|
|
var configuration = GetSelectedSdpSemantics();
|
|
_pc1 = new RTCPeerConnection(ref configuration);
|
|
Debug.Log("Created local peer connection object pc1");
|
|
_pc1.OnIceCandidate = pc1OnIceCandidate;
|
|
_pc1.OnIceConnectionChange = pc1OnIceConnectionChange;
|
|
_pc1.OnNegotiationNeeded = pc1OnNegotiationNeeded;
|
|
|
|
_pc2 = new RTCPeerConnection(ref configuration);
|
|
Debug.Log("Created remote peer connection object pc2");
|
|
_pc2.OnIceCandidate = pc2OnIceCandidate;
|
|
_pc2.OnIceConnectionChange = pc2OnIceConnectionChange;
|
|
_pc2.OnTrack = pc2Ontrack;
|
|
_pc2.OnNegotiationNeeded = pc2OnNegotiationNeeded;
|
|
|
|
if (!videoUpdateStarted)
|
|
{
|
|
StartCoroutine(WebRTC.Update());
|
|
videoUpdateStarted = true;
|
|
}
|
|
}
|
|
|
|
private void AddTracks()
|
|
{
|
|
Debug.Log("Add not added tracks");
|
|
|
|
foreach (var track in videoStreamTrackList.Where(x =>
|
|
!sendingSenderList.Exists(y => y.Track.Id == x.Id)))
|
|
{
|
|
var sender = _pc1.AddTrack(track);
|
|
sendingSenderList.Add(sender);
|
|
}
|
|
|
|
if (WebRTCSettings.UseVideoCodec != null)
|
|
{
|
|
var codecs = new[] { WebRTCSettings.UseVideoCodec };
|
|
foreach (var transceiver in _pc1.GetTransceivers())
|
|
{
|
|
if (sendingSenderList.Contains(transceiver.Sender))
|
|
{
|
|
transceiver.SetCodecPreferences(codecs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private void HangUp()
|
|
{
|
|
foreach (var image in receiveImages.Concat(sourceImages))
|
|
{
|
|
image.texture = null;
|
|
DestroyImmediate(image.gameObject);
|
|
}
|
|
|
|
receiveImages.Clear();
|
|
sourceImages.Clear();
|
|
|
|
foreach (var cam in cameras)
|
|
{
|
|
DestroyImmediate(cam.gameObject);
|
|
}
|
|
|
|
cameras.Clear();
|
|
|
|
foreach (var track in videoStreamTrackList)
|
|
{
|
|
track.Dispose();
|
|
}
|
|
|
|
videoStreamTrackList.Clear();
|
|
sendingSenderList.Clear();
|
|
|
|
_pc1.Close();
|
|
_pc2.Close();
|
|
Debug.Log("Close local/remote peer connection");
|
|
_pc1.Dispose();
|
|
_pc2.Dispose();
|
|
_pc1 = null;
|
|
_pc2 = null;
|
|
videoIndex = 0;
|
|
objectIndex = 0;
|
|
callButton.interactable = true;
|
|
hangUpButton.interactable = false;
|
|
addVideoObjectButton.interactable = false;
|
|
addTracksButton.interactable = false;
|
|
}
|
|
|
|
private void OnIceCandidate(RTCPeerConnection pc, RTCIceCandidate candidate)
|
|
{
|
|
GetOtherPc(pc).AddIceCandidate(candidate);
|
|
Debug.Log($"{GetName(pc)} ICE candidate:\n {candidate.Candidate}");
|
|
}
|
|
|
|
private string GetName(RTCPeerConnection pc)
|
|
{
|
|
return (pc == _pc1) ? "pc1" : "pc2";
|
|
}
|
|
|
|
private RTCPeerConnection GetOtherPc(RTCPeerConnection pc)
|
|
{
|
|
return (pc == _pc1) ? _pc2 : _pc1;
|
|
}
|
|
|
|
private IEnumerator OnCreateOfferSuccess(RTCPeerConnection pc, RTCSessionDescription desc)
|
|
{
|
|
Debug.Log($"Offer from {GetName(pc)}\n{desc.sdp}");
|
|
Debug.Log($"{GetName(pc)} setLocalDescription start");
|
|
var op = pc.SetLocalDescription(ref desc);
|
|
yield return op;
|
|
|
|
if (!op.IsError)
|
|
{
|
|
OnSetLocalSuccess(pc);
|
|
}
|
|
else
|
|
{
|
|
var error = op.Error;
|
|
OnSetSessionDescriptionError(ref error);
|
|
}
|
|
|
|
var otherPc = GetOtherPc(pc);
|
|
Debug.Log($"{GetName(otherPc)} setRemoteDescription start");
|
|
var op2 = otherPc.SetRemoteDescription(ref desc);
|
|
yield return op2;
|
|
if (!op2.IsError)
|
|
{
|
|
OnSetRemoteSuccess(otherPc);
|
|
}
|
|
else
|
|
{
|
|
var error = op2.Error;
|
|
OnSetSessionDescriptionError(ref error);
|
|
}
|
|
|
|
Debug.Log($"{GetName(otherPc)} createAnswer start");
|
|
// Since the 'remote' side has no media stream we need
|
|
// to pass in the right constraints in order for it to
|
|
// accept the incoming offer of audio and video.
|
|
var op3 = otherPc.CreateAnswer();
|
|
yield return op3;
|
|
if (!op3.IsError)
|
|
{
|
|
yield return OnCreateAnswerSuccess(otherPc, op3.Desc);
|
|
}
|
|
else
|
|
{
|
|
OnCreateSessionDescriptionError(op3.Error);
|
|
}
|
|
}
|
|
|
|
private void OnSetLocalSuccess(RTCPeerConnection pc)
|
|
{
|
|
Debug.Log($"{GetName(pc)} SetLocalDescription complete");
|
|
}
|
|
|
|
static void OnSetSessionDescriptionError(ref RTCError error)
|
|
{
|
|
Debug.LogError($"Error Detail Type: {error.message}");
|
|
}
|
|
|
|
private void OnSetRemoteSuccess(RTCPeerConnection pc)
|
|
{
|
|
Debug.Log($"{GetName(pc)} SetRemoteDescription complete");
|
|
}
|
|
|
|
IEnumerator OnCreateAnswerSuccess(RTCPeerConnection pc, RTCSessionDescription desc)
|
|
{
|
|
Debug.Log($"Answer from {GetName(pc)}:\n{desc.sdp}");
|
|
Debug.Log($"{GetName(pc)} setLocalDescription start");
|
|
var op = pc.SetLocalDescription(ref desc);
|
|
yield return op;
|
|
|
|
if (!op.IsError)
|
|
{
|
|
OnSetLocalSuccess(pc);
|
|
}
|
|
else
|
|
{
|
|
var error = op.Error;
|
|
OnSetSessionDescriptionError(ref error);
|
|
}
|
|
|
|
var otherPc = GetOtherPc(pc);
|
|
Debug.Log($"{GetName(otherPc)} setRemoteDescription start");
|
|
|
|
var op2 = otherPc.SetRemoteDescription(ref desc);
|
|
yield return op2;
|
|
if (!op2.IsError)
|
|
{
|
|
OnSetRemoteSuccess(otherPc);
|
|
}
|
|
else
|
|
{
|
|
var error = op2.Error;
|
|
OnSetSessionDescriptionError(ref error);
|
|
}
|
|
}
|
|
|
|
private static void OnCreateSessionDescriptionError(RTCError error)
|
|
{
|
|
Debug.LogError($"Error Detail Type: {error.message}");
|
|
}
|
|
}
|
|
}
|