diff --git a/config.go b/config.go
index 708e928..61d8bab 100644
--- a/config.go
+++ b/config.go
@@ -76,7 +76,7 @@ func (r *Record) Tree(dstPath string, level int) (files []*VideoFileInfo, err er
 		return
 	}
 	if !fileInfo.IsDir() { //如果dstF是文件
-		if path.Ext(fileInfo.Name()) == r.Ext {
+		if r.Ext == "." || path.Ext(fileInfo.Name()) == r.Ext {
 			p := strings.TrimPrefix(dstPath, r.Path)
 			p = strings.ReplaceAll(p, "\\", "/")
 			var duration uint32
diff --git a/flv.go b/flv.go
index 4a2319c..274b2b1 100644
--- a/flv.go
+++ b/flv.go
@@ -13,7 +13,14 @@ type FLVRecorder struct {
 	Recorder
 }
 
-func (r *FLVRecorder) Start() {
+func (r *FLVRecorder) Start(streamPath string) (err error){
+	r.Record = &recordConfig.Flv
+	r.ID = streamPath + "/flv"
+	return plugin.Subscribe(streamPath, r)
+}
+
+func (r *FLVRecorder) start() {
+	recordConfig.recordings.Store(r.ID, r)
 	r.PlayFLV()
 	recordConfig.recordings.Delete(r.ID)
 	r.Close()
@@ -35,7 +42,7 @@ func (r *FLVRecorder) OnEvent(event any) {
 		if !r.append {
 			r.Write(codec.FLVHeader)
 		}
-		go r.Start()
+		go r.start()
 	case FLVFrame:
 		if ts := r.Video.Frame.AbsTime - r.SkipTS; r.Video.Frame.IFrame && int64(ts-r.FirstAbsTS) >= int64(r.Fragment*1000) {
 			r.FirstAbsTS = ts
diff --git a/hls.go b/hls.go
index 29cabbe..154682c 100644
--- a/hls.go
+++ b/hls.go
@@ -22,6 +22,12 @@ type HLSRecorder struct {
 	tsWriter io.WriteCloser
 }
 
+func (h *HLSRecorder) Start(streamPath string) error {
+	h.Record = &recordConfig.Hls
+	h.ID = streamPath + "/hls"
+	return plugin.Subscribe(streamPath, h)
+}
+
 func (h *HLSRecorder) OnEvent(event any) {
 	var err error
 	defer func() {
@@ -45,7 +51,7 @@ func (h *HLSRecorder) OnEvent(event any) {
 		if err = h.createHlsTsSegmentFile(); err != nil {
 			return
 		}
-		go h.Start()
+		go h.start()
 	case AudioDeConf:
 		h.asc, err = hls.DecodeAudioSpecificConfig(v.AVCC[0])
 	case *AudioFrame:
diff --git a/main.go b/main.go
index 34f6849..614fa92 100644
--- a/main.go
+++ b/main.go
@@ -60,23 +60,18 @@ func (conf *RecordConfig) OnEvent(event any) {
 	case SEpublish:
 		if conf.Flv.NeedRecord(v.Stream.Path) {
 			var flv FLVRecorder
-			flv.Record = &conf.Flv
-			plugin.Subscribe(v.Stream.Path, &flv)
+			flv.Start(v.Stream.Path)
 		}
 		if conf.Mp4.NeedRecord(v.Stream.Path) {
-			mp4 := NewMP4Recorder()
-			mp4.Record = &conf.Mp4
-			plugin.Subscribe(v.Stream.Path, mp4)
+			NewMP4Recorder().Start(v.Stream.Path)
 		}
 		if conf.Hls.NeedRecord(v.Stream.Path) {
 			var hls HLSRecorder
-			hls.Record = &conf.Hls
-			plugin.Subscribe(v.Stream.Path, &hls)
+			hls.Start(v.Stream.Path)
 		}
 		if conf.Raw.NeedRecord(v.Stream.Path) {
 			var raw RawRecorder
-			raw.Record = &conf.Raw
-			plugin.Subscribe(v.Stream.Path, &raw)
+			raw.Start(v.Stream.Path)
 		}
 	}
 }
@@ -133,39 +128,33 @@ func (conf *RecordConfig) API_start(w http.ResponseWriter, r *http.Request) {
 	t := query.Get("type")
 	var sub ISubscriber
 	var filePath string
+	var err error
 	switch t {
 	case "":
 		t = "flv"
 		fallthrough
 	case "flv":
 		var flvRecoder FLVRecorder
-		flvRecoder.Record = &conf.Flv
-		sub = &flvRecoder
 		flvRecoder.append = query.Get("append") != "" && util.Exist(filePath)
+		err = flvRecoder.Start(streamPath)
 	case "mp4":
-		recorder := NewMP4Recorder()
-		recorder.Record = &conf.Mp4
-		sub = recorder
+		err = NewMP4Recorder().Start(streamPath)
 	case "hls":
-		recorder := &HLSRecorder{}
-		recorder.Record = &conf.Hls
-		sub = recorder
+		var recorder HLSRecorder
+		err = recorder.Start(streamPath)
 	case "raw":
-		recorder := &RawRecorder{}
-		recorder.Record = &conf.Raw
+		var recorder RawRecorder
 		recorder.append = query.Get("append") != "" && util.Exist(filePath)
-		sub = recorder
+		err = recorder.Start(streamPath)
 	default:
 		http.Error(w, "type not supported", http.StatusBadRequest)
+		return
 	}
-	if err := plugin.Subscribe(streamPath, sub); err != nil {
+	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
-	id := streamPath + "/" + t
-	sub.GetIO().ID = id
-	conf.recordings.Store(id, sub)
-	w.Write([]byte(id))
+	w.Write([]byte(sub.GetIO().ID))
 }
 
 func (conf *RecordConfig) API_list_recording(w http.ResponseWriter, r *http.Request) {
@@ -182,6 +171,7 @@ func (conf *RecordConfig) API_list_recording(w http.ResponseWriter, r *http.Requ
 func (conf *RecordConfig) API_stop(w http.ResponseWriter, r *http.Request) {
 	if recorder, ok := conf.recordings.Load(r.URL.Query().Get("id")); ok {
 		recorder.(ISubscriber).Stop()
+		w.Write([]byte("ok"))
 		return
 	}
 	http.Error(w, "no such recorder", http.StatusBadRequest)
diff --git a/mp4.go b/mp4.go
index 08c8bc1..a339eb1 100644
--- a/mp4.go
+++ b/mp4.go
@@ -67,6 +67,12 @@ func NewMP4Recorder() *MP4Recorder {
 	return r
 }
 
+func (r *MP4Recorder) Start(streamPath string) (err error) {
+	r.Record = &recordConfig.Mp4
+	r.ID = streamPath + "/mp4"
+	return plugin.Subscribe(streamPath, r)
+}
+
 func (r *MP4Recorder) Close() error {
 	if r.Writer != nil {
 		if r.video.fragment != nil {
@@ -135,7 +141,7 @@ func (r *MP4Recorder) OnEvent(event any) {
 	case ISubscriber:
 		defaultFtyp.Encode(r)
 		r.Moov.Encode(r)
-		go r.Start()
+		go r.start()
 	case *AudioFrame:
 		if r.audio.trackId != 0 {
 			r.audio.push(r, v.AbsTime, v.DeltaTime, util.ConcatBuffers(v.Raw), mp4.SyncSampleFlags)
diff --git a/raw.go b/raw.go
index 042f4d9..8b099b8 100644
--- a/raw.go
+++ b/raw.go
@@ -14,11 +14,17 @@ type RawRecorder struct {
 	Recorder
 }
 
+func (r *RawRecorder) Start(streamPath string) error {
+	r.Record = &recordConfig.Raw
+	r.ID = streamPath + "/raw"
+	return plugin.Subscribe(streamPath, r)
+}
+
 func (r *RawRecorder) OnEvent(event any) {
 	r.Recorder.OnEvent(event)
 	switch v := event.(type) {
 	case *RawRecorder:
-		go r.Start()
+		go r.start()
 	case *track.Video:
 		if r.Ext == "." {
 			if v.CodecID == codec.CodecID_H264 {
diff --git a/subscriber.go b/subscriber.go
index 58e6fc4..72c0e0e 100644
--- a/subscriber.go
+++ b/subscriber.go
@@ -15,7 +15,8 @@ type Recorder struct {
 	append  bool // 是否追加模式
 }
 
-func (r *Recorder) Start() {
+func (r *Recorder) start() {
+	recordConfig.recordings.Store(r.ID, r)
 	r.PlayRaw()
 	recordConfig.recordings.Delete(r.ID)
 	r.Close()