diff --git a/puller.go b/puller.go
index 7dd8e88..e87ba2f 100644
--- a/puller.go
+++ b/puller.go
@@ -1,7 +1,6 @@
 package engine
 
 import (
-	"io"
 	"strings"
 	"time"
 
@@ -40,7 +39,7 @@ func (pub *Puller) Reconnect() (ok bool) {
 }
 
 func (pub *Puller) startPull(puller IPuller) {
-	badPuller := true
+	// badPuller := true
 	var stream *Stream
 	var err error
 	streamPath := pub.StreamPath
@@ -75,14 +74,14 @@ func (pub *Puller) startPull(puller IPuller) {
 		}
 		startTime = time.Now()
 		if err = puller.Connect(); err != nil {
-			if err == io.EOF {
-				puller.Info("pull complete")
-				return
-			}
+			// if err == io.EOF {
+			// 	puller.Info("pull complete")
+			// 	return
+			// }
 			puller.Error("pull connect", zap.Error(err))
-			if badPuller {
-				return
-			}
+			// if badPuller {
+			// 	return
+			// }
 		} else {
 			if err = puller.Publish(pub.StreamPath, puller); err != nil {
 				puller.Error("pull publish", zap.Error(err))
@@ -94,7 +93,7 @@ func (pub *Puller) startPull(puller IPuller) {
 				puber.VideoTrack = nil
 			}
 			stream = puber.Stream
-			badPuller = false
+			// badPuller = false
 			if err = puller.Pull(); err != nil && !puller.IsShutdown() {
 				puller.Error("pull interrupt", zap.Error(err))
 			}
diff --git a/subscriber.go b/subscriber.go
index 2b4bb99..11e12d6 100644
--- a/subscriber.go
+++ b/subscriber.go
@@ -168,16 +168,28 @@ func (s *Subscriber) CreateTrackReader(t *track.Media) (result *track.AVRingRead
 func (s *Subscriber) AddTrack(t Track) bool {
 	switch v := t.(type) {
 	case *track.Video:
-		if s.VideoReader != nil || !s.Config.SubVideo {
+		if !s.Config.SubVideo {
 			return false
 		}
+		var startTs time.Duration
+		if s.VideoReader != nil {
+			startTs = time.Duration(s.VideoReader.AbsTime) * time.Millisecond
+			s.VideoReader.StopRead()
+		}
 		s.VideoReader = s.CreateTrackReader(&v.Media)
+		s.VideoReader.StartTs = startTs
 		s.Video = v
 	case *track.Audio:
-		if s.AudioReader != nil || !s.Config.SubAudio {
+		if !s.Config.SubAudio {
 			return false
 		}
+		var startTs time.Duration
+		if s.AudioReader != nil {
+			startTs = time.Duration(s.AudioReader.AbsTime) * time.Millisecond
+			s.AudioReader.StopRead()
+		}
 		s.AudioReader = s.CreateTrackReader(&v.Media)
+		s.AudioReader.StartTs = startTs
 		s.Audio = v
 	default:
 		return false