[fix] rtsp: 播放不存在的rtsp流，超时没有彻底释放

pkg/logic/group__.go

@@ -119,8 +119,8 @@ type Group struct {
 	rtmpSubSessionSet     map[*rtmp.ServerSession]struct{}
 	httpflvSubSessionSet  map[*httpflv.SubSession]struct{}
 	httptsSubSessionSet   map[*httpts.SubSession]struct{}
-	rtspSubSessionSet     map[*rtsp.SubSession]struct{}
-	waitRtspSubSessionSet map[*rtsp.SubSession]struct{}
+	rtspSubSessionSet     map[*rtsp.SubSession]struct{} // 注意，使用这个容器时，一定要注意是否需要使用 waitRtspSubSessionSet
+	waitRtspSubSessionSet map[*rtsp.SubSession]struct{} // 注意，见 rtspSubSessionSet
 	hlsSubSessionSet      map[*hls.SubSession]struct{}
 	// push
 	pushEnable    bool

pkg/logic/group__out_sub.go

@@ -150,6 +150,7 @@ func (group *Group) delHttptsSubSession(session *httpts.SubSession) {
 
 func (group *Group) delRtspSubSession(session *rtsp.SubSession) {
 	Log.Debugf("[%s] [%s] del rtsp SubSession from group.", group.UniqueKey, session.UniqueKey())
+	delete(group.waitRtspSubSessionSet, session)
 	delete(group.rtspSubSessionSet, session)
 }