增加Stream NeverTimeout属性，用于纯数据轨道的流保持不关闭

消除一处魔法数字
将TCP监听增加TLS支持

stream.go

@@ -124,6 +124,7 @@ type StreamTimeoutConfig struct {
 	PublishTimeout    time.Duration //发布者无数据后超时
 	DelayCloseTimeout time.Duration //无订阅者后超时,必须先有一次订阅才会激活
 	IdleTimeout       time.Duration //无订阅者后超时，不需要订阅即可激活
+	NeverTimeout      bool          // 永不超时
 }
 type Tracks struct {
 	sync.Map
@@ -418,26 +419,28 @@ func (s *Stream) run() {
 						s.onSuberClose(sub)
 					}
 				}
-				hasTrackTimeout := false
-				trackCount := 0
-				s.Tracks.Range(func(name string, t Track) {
-					trackCount++
-					if _, ok := t.(track.Custom); ok {
-						return
-					}
-					// track 超过一定时间没有更新数据了
-					if lastWriteTime := t.LastWriteTime(); !lastWriteTime.IsZero() && time.Since(lastWriteTime) > s.PublishTimeout {
-						s.Warn("track timeout", zap.String("name", name), zap.Time("last writetime", lastWriteTime), zap.Duration("timeout", s.PublishTimeout))
-						hasTrackTimeout = true
-					}
-				})
-				if trackCount == 0 || hasTrackTimeout || (s.Publisher != nil && s.Publisher.IsClosed()) {
-					s.action(ACTION_PUBLISHLOST)
-				} else {
-					s.timeout.Reset(time.Second * 5)
-					//订阅者等待音视频轨道超时了，放弃等待，订阅成功
-					s.Subscribers.AbortWait()
+				if !s.NeverTimeout {
+					hasTrackTimeout := false
+					trackCount := 0
+					s.Tracks.Range(func(name string, t Track) {
+						trackCount++
+						if _, ok := t.(track.Custom); ok {
+							return
+						}
+						// track 超过一定时间没有更新数据了
+						if lastWriteTime := t.LastWriteTime(); !lastWriteTime.IsZero() && time.Since(lastWriteTime) > s.PublishTimeout {
+							s.Warn("track timeout", zap.String("name", name), zap.Time("last writetime", lastWriteTime), zap.Duration("timeout", s.PublishTimeout))
+							hasTrackTimeout = true
+						}
+					})
+					if trackCount == 0 || hasTrackTimeout || (s.Publisher != nil && s.Publisher.IsClosed()) {
+						s.action(ACTION_PUBLISHLOST)
+						continue
+					} 
 				}
+				s.timeout.Reset(time.Second * 5)
+				//订阅者等待音视频轨道超时了，放弃等待，订阅成功
+				s.Subscribers.AbortWait()
 			} else {
 				s.Debug("timeout", timeOutInfo)
 				s.action(ACTION_TIMEOUT)