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Packages/com.unity.renderstreaming@3.1.0-exp.9/Runtime/Scripts/StreamReceiverBase.cs

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+using System;
+using Unity.WebRTC;
+using UnityEngine;
+
+namespace Unity.RenderStreaming
+{
+    /// <summary>
+    ///
+    /// </summary>
+    public abstract class StreamReceiverBase : MonoBehaviour, IStreamReceiver
+    {
+        /// <summary>
+        ///
+        /// </summary>
+        public RTCRtpTransceiver Transceiver => m_transceiver;
+
+        /// <summary>
+        ///
+        /// </summary>
+        public OnStartedStreamHandler OnStartedStream { get; set; }
+
+        /// <summary>
+        ///
+        /// </summary>
+        public OnStoppedStreamHandler OnStoppedStream { get; set; }
+
+        /// <summary>
+        ///
+        /// </summary>
+        public MediaStreamTrack Track => m_track;
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public bool isPlaying
+        {
+            get
+            {
+                if (string.IsNullOrEmpty(Transceiver.Mid))
+                    return false;
+                if (Transceiver.Sender.Track.ReadyState == TrackState.Ended)
+                    return false;
+                return true;
+            }
+        }
+
+        private RTCRtpTransceiver m_transceiver;
+        private MediaStreamTrack m_track;
+
+        /// <summary>
+        ///
+        /// </summary>
+        /// <param name="connectionId"></param>
+        /// <param name="receiver"></param>
+        public virtual void SetTransceiver(string connectionId, RTCRtpTransceiver transceiver)
+        {
+            if (connectionId == null)
+                throw new ArgumentNullException("connectionId", "connectionId is null");
+
+            m_transceiver = transceiver;
+            m_track = m_transceiver?.Receiver.Track;
+
+            if (m_transceiver == null)
+                OnStoppedStream?.Invoke(connectionId);
+            else
+                OnStartedStream?.Invoke(connectionId);
+        }
+
+        protected virtual void OnDestroy()
+        {
+            m_track?.Dispose();
+            m_track = null;
+        }
+    }
+}