public void SetRemoteSessionDescription(RTCSessionDescription description, Callback callback)
{
if (callback is null)
{
throw new ArgumentNullException(nameof(callback));
}
MustNotDisposed();
_peerConnectionImpl.SetRemoteSessionDescription(
description.Type,
description.Sdp,
new Callback().OnSuccess(delegate
{
try
{
// TODO: move this,
// AddPeerConnection() should be called right after the peer connection
// factory returns the newly created PeerConnection.
//
// To accomplish this, make sure VideoRouter listens to PeerConnection's track events,
// because when PeerConnection has just been created, it has no track, however
// SetRemoteSessionDescription() above adds track after the PeerConnection is added to the router.
if (Interlocked.CompareExchange(
ref _addedToRouterState,
(int)AddedToRouterState.Added,
(int)AddedToRouterState.NotAdded) == (int)AddedToRouterState.NotAdded)
{
// As per webRTC example, the answerer will SetRemoteSessionDescription() first,
// then followed by AddTrack();
//
// and AddPeerConnectionAsync() will call AddTrack() under the hood,
// therefore we call AddPeerConnectionAsync() right after SetRemoteSessionDescription();
_videoRouter.AddPeerConnection(Device, this);
}
callback.Success();
}
catch (Exception ex)
{
_logger.Error(ex);
callback.Error(ex.Message);
}
}).OnError(msg => callback.Error(msg)));
}
