diff --git a/api.go b/api.go
index 67df936..640758a 100644
--- a/api.go
+++ b/api.go
@@ -553,9 +553,10 @@ func (s *Server) GetDeviceList(ctx context.Context, req *emptypb.Empty) (res *pb
 			Name:       device.Name,
 			CreateTime: timestamppb.New(device.CreatedAt),
 			UpdateTime: timestamppb.New(device.UpdatedAt),
-			Type:       uint32(device.Type),
+			Type:       device.Type,
 			PullURL:    device.PullURL,
 			ParentID:   uint32(device.ParentID),
+			Status:     uint32(device.Status),
 			ID:         uint32(device.ID),
 		})
 	}
@@ -566,7 +567,7 @@ func (s *Server) AddDevice(ctx context.Context, req *pb.DeviceInfo) (res *pb.Suc
 	device := &Device{
 		server:   s,
 		Name:     req.Name,
-		Type:     byte(req.Type),
+		Type:    	req.Type,
 		PullURL:  req.PullURL,
 		ParentID: uint(req.ParentID),
 	}
@@ -590,7 +591,7 @@ func (s *Server) UpdateDevice(ctx context.Context, req *pb.DeviceInfo) (res *pb.
 	target.Name = req.Name
 	target.PullURL = req.PullURL
 	target.ParentID = uint(req.ParentID)
-	target.Type = byte(req.Type)
+	target.Type = req.Type
 	s.DB.Save(target)
 	res = &pb.SuccessResponse{}
 	return
diff --git a/device.go b/device.go
index 6d2c686..eb643dd 100644
--- a/device.go
+++ b/device.go
@@ -13,14 +13,6 @@ const (
 	DeviceStatusPulling
 )
 
-const (
-	DeviceTypeGroup byte = iota
-	DeviceTypeGB
-	DeviceTypeRTSP
-	DeviceTypeRTMP
-	DeviceTypeWebRTC
-)
-
 type (
 	IDevice interface {
 		Pull()
@@ -32,7 +24,7 @@ type (
 		Name     string
 		PullURL  string
 		ParentID uint
-		Type     byte
+		Type     string
 		Status   byte
 		Handler  IDevice `gorm:"-:all"`
 	}
@@ -42,7 +34,7 @@ type (
 )
 
 func (d *Device) GetStreamPath() string {
-	return fmt.Sprintf("device/%d/%d", d.Type, d.ID)
+	return fmt.Sprintf("device/%s/%d", d.Type, d.ID)
 }
 
 func (d *Device) Start() (err error) {
@@ -58,10 +50,16 @@ func (d *Device) Start() (err error) {
 }
 
 func (d *Device) ChangeStatus(status byte) {
+	if d.Status == status {
+		return
+	}
+	d.Info("device status changed", "from", d.Status, "to", status)
 	d.Status = status
 	d.Update()
 }
 
 func (d *Device) Update() {
-	d.server.DB.Save(d)
+	if d.server.DB != nil {
+		d.server.DB.Save(d)
+	}
 }
diff --git a/example/default/device.yaml b/example/default/device.yaml
index 4db63bf..5f715d9 100644
--- a/example/default/device.yaml
+++ b/example/default/device.yaml
@@ -1,7 +1,14 @@
 global:
+  http:
+    listenaddr: :8081
+  tcp:
+    listenaddr: :50052
   device:
-    - name: default
+    - id: 1
+      name: default
       description: Example device
-      stream:
-        - rtsp://xxx.xxx.xxx.xxx:554/live/test
+      pullurl: rtsp://localhost/live/test
+
+rtsp:
+  tcp: :8554
 
diff --git a/example/default/m7s.db-journal b/example/default/m7s.db-journal
deleted file mode 100644
index 8fcd82f..0000000
Binary files a/example/default/m7s.db-journal and /dev/null differ
diff --git a/example/default/readflv.yaml b/example/default/readflv.yaml
index 85f1cfc..960b0f1 100644
--- a/example/default/readflv.yaml
+++ b/example/default/readflv.yaml
@@ -1,5 +1,10 @@
 global:
-  loglevel: trace
+  # loglevel: trace
+  disableall: true
+rtsp:
+  enable: true
+  listenaddr: :554
 flv:
+  enable: true
   pull:
-    live/test: record/live/test/sei.flv
\ No newline at end of file
+    live/test: /Users/dexter/Movies/jb-demo.flv
\ No newline at end of file
diff --git a/example/default/readmp4.yaml b/example/default/readmp4.yaml
index d82fc16..1b0f4c5 100644
--- a/example/default/readmp4.yaml
+++ b/example/default/readmp4.yaml
@@ -1,6 +1,10 @@
 global:
-  loglevel: trace
+  # loglevel: trace
+  disableall: true
+rtsp:
+  enable: true
+  listenaddr: :554
 mp4:
+  enable: true
   pull:
-    pullonstart:
-      live/test: /Users/dexter/Movies/test.mp4
\ No newline at end of file
+    live/test: /Users/dexter/Movies/test.mp4
\ No newline at end of file
diff --git a/pb/global.pb.go b/pb/global.pb.go
index ef43bc4..f0c35b6 100644
--- a/pb/global.pb.go
+++ b/pb/global.pb.go
@@ -2219,7 +2219,7 @@ type DeviceInfo struct {
 	UpdateTime *timestamppb.Timestamp `protobuf:"bytes,3,opt,name=updateTime,proto3" json:"updateTime,omitempty"` // 更新时间
 	ParentID   uint32                 `protobuf:"varint,4,opt,name=parentID,proto3" json:"parentID,omitempty"`    // 父设备ID
 	Name       string                 `protobuf:"bytes,5,opt,name=name,proto3" json:"name,omitempty"`             // 设备名称
-	Type       uint32                 `protobuf:"varint,6,opt,name=type,proto3" json:"type,omitempty"`            // 设备类型
+	Type       string                 `protobuf:"bytes,6,opt,name=type,proto3" json:"type,omitempty"`             // 设备类型
 	Status     uint32                 `protobuf:"varint,7,opt,name=status,proto3" json:"status,omitempty"`        // 设备状态
 	PullURL    string                 `protobuf:"bytes,8,opt,name=pullURL,proto3" json:"pullURL,omitempty"`       // 拉流地址
 }
@@ -2291,11 +2291,11 @@ func (x *DeviceInfo) GetName() string {
 	return ""
 }
 
-func (x *DeviceInfo) GetType() uint32 {
+func (x *DeviceInfo) GetType() string {
 	if x != nil {
 		return x.Type
 	}
-	return 0
+	return ""
 }
 
 func (x *DeviceInfo) GetStatus() uint32 {
@@ -2638,7 +2638,7 @@ var file_global_proto_rawDesc = []byte{
 	0x18, 0x04, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x08, 0x70, 0x61, 0x72, 0x65, 0x6e, 0x74, 0x49, 0x44,
 	0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04,
 	0x6e, 0x61, 0x6d, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x06, 0x20, 0x01,
-	0x28, 0x0d, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x73, 0x74, 0x61, 0x74,
+	0x28, 0x09, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x73, 0x74, 0x61, 0x74,
 	0x75, 0x73, 0x18, 0x07, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73,
 	0x12, 0x18, 0x0a, 0x07, 0x70, 0x75, 0x6c, 0x6c, 0x55, 0x52, 0x4c, 0x18, 0x08, 0x20, 0x01, 0x28,
 	0x09, 0x52, 0x07, 0x70, 0x75, 0x6c, 0x6c, 0x55, 0x52, 0x4c, 0x32, 0xdb, 0x0f, 0x0a, 0x03, 0x61,
diff --git a/pb/global.proto b/pb/global.proto
index e95cd59..5ebe460 100644
--- a/pb/global.proto
+++ b/pb/global.proto
@@ -337,7 +337,7 @@ message DeviceInfo {
   google.protobuf.Timestamp updateTime = 3; // 更新时间
   uint32 parentID = 4; // 父设备ID
   string name = 5; // 设备名称
-  uint32 type = 6; // 设备类型
+  string type = 6; // 设备类型
   uint32 status = 7; // 设备状态
   string pullURL = 8; // 拉流地址
 }
\ No newline at end of file
diff --git a/pkg/task/job.go b/pkg/task/job.go
index e811b1d..6cf37cc 100644
--- a/pkg/task/job.go
+++ b/pkg/task/job.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"log/slog"
 	"reflect"
+	"runtime/debug"
 	"slices"
 	"sync"
 	"sync/atomic"
@@ -155,12 +156,14 @@ func (mt *Job) Post(callback func() error, args ...any) *Task {
 func (mt *Job) run() {
 	cases := []reflect.SelectCase{{Dir: reflect.SelectRecv, Chan: reflect.ValueOf(mt.addSub)}}
 	defer func() {
-		err := recover()
-		if err != nil {
-			if mt.Logger != nil {
-				mt.Logger.Error("job panic", "err", err)
+		if !ThrowPanic {
+			err := recover()
+			if err != nil {
+				if mt.Logger != nil {
+					mt.Logger.Error("job panic", "err", err, "stack", string(debug.Stack()))
+				}
+				mt.Stop(errors.Join(err.(error), ErrPanic))
 			}
-			mt.Stop(errors.Join(err.(error), ErrPanic))
 		}
 		stopReason := mt.StopReason()
 		for _, task := range mt.children {
diff --git a/pkg/task/panic.go b/pkg/task/panic.go
new file mode 100644
index 0000000..0216d01
--- /dev/null
+++ b/pkg/task/panic.go
@@ -0,0 +1,3 @@
+package task
+
+var ThrowPanic = false
\ No newline at end of file
diff --git a/pkg/task/panic_true.go b/pkg/task/panic_true.go
new file mode 100644
index 0000000..bfb93dd
--- /dev/null
+++ b/pkg/task/panic_true.go
@@ -0,0 +1,6 @@
+//go:build taskpanic
+// +build taskpanic
+
+package task
+
+var ThrowPanic = true
\ No newline at end of file
diff --git a/pkg/task/task.go b/pkg/task/task.go
index 1139b66..4027cbf 100644
--- a/pkg/task/task.go
+++ b/pkg/task/task.go
@@ -257,14 +257,16 @@ func (task *Task) checkRetry(err error) bool {
 
 func (task *Task) start() bool {
 	var err error
-	defer func() {
-		if r := recover(); r != nil {
-			err = errors.New(fmt.Sprint(r))
-			if task.Logger != nil {
-				task.Error("panic", "error", err, "stack", string(debug.Stack()))
+	if !ThrowPanic {
+		defer func() {
+			if r := recover(); r != nil {
+				err = errors.New(fmt.Sprint(r))
+				if task.Logger != nil {
+					task.Error("panic", "error", err, "stack", string(debug.Stack()))
+				}
 			}
-		}
-	}()
+		}()
+	}
 	for {
 		task.StartTime = time.Now()
 		if task.Logger != nil {
diff --git a/plugin.go b/plugin.go
index 13cafb4..d081ab3 100644
--- a/plugin.go
+++ b/plugin.go
@@ -425,7 +425,9 @@ func (p *Plugin) OnSubscribe(sub *Subscriber) {
 		}
 	}
 	for device := range p.Server.Devices.Range {
-		device.Handler.Pull()
+		if device.Status == DeviceStatusOnline && device.GetStreamPath() == sub.StreamPath {
+			device.Handler.Pull()
+		}
 	}
 	//if !avoidTrans {
 	//	for reg, conf := range plugin.GetCommonConf().OnSub.Transform {
diff --git a/plugin/gb28181/index.go b/plugin/gb28181/index.go
index b54a5c4..b0ab2b4 100644
--- a/plugin/gb28181/index.go
+++ b/plugin/gb28181/index.go
@@ -104,7 +104,7 @@ func (gb *GB28181Plugin) OnInit() (err error) {
 }
 
 func (p *GB28181Plugin) OnDeviceAdd(device *m7s.Device) (ret task.ITask) {
-	if device.Type != m7s.DeviceTypeGB {
+	if device.Type != "gb28181" {
 		return
 	}
 	deviceID, channelID, _ := strings.Cut(device.PullURL, "/")
@@ -323,7 +323,7 @@ func (gb *GB28181Plugin) StoreDevice(id string, req *sip.Request) (d *Device) {
 		gb.devices.Add(d)
 		d.channels.OnAdd(func(c *Channel) {
 			if absDevice, ok := gb.Server.Devices.Find(func(absDevice *m7s.Device) bool {
-				return absDevice.Type == m7s.DeviceTypeGB && absDevice.PullURL == fmt.Sprintf("%s/%s", d.ID, c.DeviceID)
+				return absDevice.Type == "gb28181" && absDevice.PullURL == fmt.Sprintf("%s/%s", d.ID, c.DeviceID)
 			}); ok {
 				c.AbstractDevice = absDevice
 				absDevice.Handler = c
diff --git a/plugin/rtsp/device.go b/plugin/rtsp/device.go
index 0a9f25d..603ff4f 100644
--- a/plugin/rtsp/device.go
+++ b/plugin/rtsp/device.go
@@ -6,6 +6,7 @@ import (
 	"m7s.live/m7s/v5"
 	"m7s.live/m7s/v5/pkg/config"
 	"m7s.live/m7s/v5/pkg/task"
+	"m7s.live/m7s/v5/pkg/util"
 	. "m7s.live/m7s/v5/plugin/rtsp/pkg"
 )
 
@@ -17,12 +18,11 @@ type RTSPDevice struct {
 }
 
 func (d *RTSPDevice) Start() (err error) {
-	d.conn.NetConnection = new(NetConnection)
-	err = d.conn.Connect(d.device.PullURL)
-	if err != nil {
-		return
+	d.conn.NetConnection = &NetConnection{
+		MemoryAllocator: util.NewScalableMemoryAllocator(1 << 12),
+		UserAgent:       "monibuca" + m7s.Version,
 	}
-	d.device.ChangeStatus(m7s.DeviceStatusOnline)
+	d.conn.Logger = d.plugin.Logger
 	return d.TickTask.Start()
 }
 
@@ -31,13 +31,20 @@ func (d *RTSPDevice) GetTickInterval() time.Duration {
 }
 
 func (d *RTSPDevice) Pull() {
-	d.plugin.Pull(d.device.GetStreamPath(), config.Pull{URL: d.device.PullURL,MaxRetry: -1})
+	d.plugin.Pull(d.device.GetStreamPath(), config.Pull{URL: d.device.PullURL, MaxRetry: -1, RetryInterval: time.Second * 5})
 }
 
 func (d *RTSPDevice) Tick(any) {
+	if d.device.Status != m7s.DeviceStatusOnline {
+		err := d.conn.Connect(d.device.PullURL)
+		if err != nil {
+			return
+		}
+		d.device.ChangeStatus(m7s.DeviceStatusOnline)
+	}
 	err := d.conn.Options()
 	if err != nil {
-		d.Stop(err)
+		d.device.ChangeStatus(m7s.DeviceStatusOffline)
 	}
 }
 
diff --git a/plugin/rtsp/index.go b/plugin/rtsp/index.go
index e9236fc..b4c5558 100644
--- a/plugin/rtsp/index.go
+++ b/plugin/rtsp/index.go
@@ -25,7 +25,7 @@ func (p *RTSPPlugin) OnTCPConnect(conn *net.TCPConn) task.ITask {
 }
 
 func (p *RTSPPlugin) OnDeviceAdd(device *m7s.Device) task.ITask {
-	if device.Type != m7s.DeviceTypeRTSP {
+	if device.Type != "rtsp" {
 		return nil
 	}
 	ret := &RTSPDevice{device: device, plugin: p}
diff --git a/plugin/rtsp/pkg/client.go b/plugin/rtsp/pkg/client.go
index 26b6cf1..e9de020 100644
--- a/plugin/rtsp/pkg/client.go
+++ b/plugin/rtsp/pkg/client.go
@@ -53,7 +53,6 @@ func NewPusher() m7s.IPusher {
 }
 
 func (c *Client) Run() (err error) {
-	c.BufReader = util.NewBufReader(c.conn)
 	c.MemoryAllocator = util.NewScalableMemoryAllocator(1 << 12)
 	if err = c.Options(); err != nil {
 		return
diff --git a/plugin/rtsp/pkg/connection.go b/plugin/rtsp/pkg/connection.go
index 6f834c1..384dc0a 100644
--- a/plugin/rtsp/pkg/connection.go
+++ b/plugin/rtsp/pkg/connection.go
@@ -135,6 +135,7 @@ func (c *NetConnection) Connect(remoteURL string) (err error) {
 		return
 	}
 	c.conn = conn
+	c.BufReader = util.NewBufReader(conn)
 	c.URL = rtspURL
 	c.UserAgent = "monibuca" + m7s.Version
 	c.auth = util.NewAuth(c.URL.User)
diff --git a/plugin/srt/index.go b/plugin/srt/index.go
index 2a3b347..e079fee 100644
--- a/plugin/srt/index.go
+++ b/plugin/srt/index.go
@@ -21,7 +21,9 @@ type SRTPlugin struct {
 	Passphrase string
 }
 
-var _ = m7s.InstallPlugin[SRTPlugin](pkg.NewPuller, pkg.NewPusher)
+const defaultConfig = m7s.DefaultYaml(`listenaddr: :6000`)
+
+var _ = m7s.InstallPlugin[SRTPlugin](defaultConfig,pkg.NewPuller, pkg.NewPusher)
 
 func (p *SRTPlugin) OnInit() error {
 	var t SRTServer
diff --git a/scripts/README.md b/scripts/README.md
new file mode 100644
index 0000000..b204fb1
--- /dev/null
+++ b/scripts/README.md
@@ -0,0 +1,4 @@
+# use protoc to generate the go code from the proto file
+
+1. cd to plugin/xxx
+2. sh ../../scripts/protoc.sh
\ No newline at end of file
diff --git a/server.go b/server.go
index d045624..68cf69a 100644
--- a/server.go
+++ b/server.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"log/slog"
 	"net/http"
+	"net/url"
 	"os"
 	"path/filepath"
 	"runtime/debug"
@@ -59,7 +60,7 @@ type (
 			ID       uint
 			ParentID uint
 			Name     string
-			Type     byte
+			Type     string
 			PullURL  string
 		}
 	}
@@ -284,10 +285,7 @@ func (s *Server) Start() (err error) {
 	s.Streams.OnStart(func() {
 		s.Streams.AddTask(&CheckSubWaitTimeout{s: s})
 	})
-	s.Transforms.OnStart(func() {
-		publishEvent := &TransformsPublishEvent{Transforms: &s.Transforms}
-		s.Transforms.AddTask(publishEvent)
-	})
+	s.Transforms.AddTask(&TransformsPublishEvent{Transforms: &s.Transforms})
 	s.Info("server started")
 	s.Post(func() error {
 		for plugin := range s.Plugins.Range {
@@ -309,10 +307,34 @@ func (s *Server) Start() (err error) {
 				d.ParentID = device.ParentID
 				d.server = s
 				d.Type = device.Type
+				if d.Type == "" {
+					if strings.HasPrefix(d.PullURL, "srt://") {
+						d.Type = "srt"
+					} else if strings.HasPrefix(d.PullURL, "rtsp://") {
+						d.Type = "rtsp"
+					} else if strings.HasPrefix(d.PullURL, "rtmp://") {
+						d.Type = "rtmp"
+					} else if strings.HasPrefix(d.PullURL, "srt://") {
+						d.Type = "srt"
+					} else {
+						u, err := url.Parse(d.PullURL)
+						if err != nil {
+							s.Error("parse pull url failed", "error", err)
+							continue
+						}
+						if strings.HasSuffix(u.Path, ".m3u8") {
+							d.Type = "hls"
+						} else if strings.HasSuffix(u.Path, ".flv") {
+							d.Type = "flv"
+						} else if strings.HasSuffix(u.Path, ".mp4") {
+							d.Type = "mp4"
+						}
+					}
+				}
 				if s.DB != nil {
 					s.DB.Save(&d)
 				} else {
-					s.Devices.Add(&d)
+					s.Devices.Add(&d, s.Logger.With("device", device.ID, "type", device.Type, "name", device.Name))
 				}
 			}
 		}
@@ -321,7 +343,7 @@ func (s *Server) Start() (err error) {
 			s.DB.Find(&devices)
 			for _, device := range devices {
 				device.server = s
-				s.Devices.Add(device)
+				s.Devices.Add(device, s.Logger.With("device", device.ID, "type", device.Type, "name", device.Name))
 			}
 		}
 		return nil
diff --git a/subscriber.go b/subscriber.go
index a196389..ea4180c 100644
--- a/subscriber.go
+++ b/subscriber.go
@@ -23,6 +23,7 @@ import (
 
 var AVFrameType = reflect.TypeOf((*AVFrame)(nil))
 var Owner task.TaskContextKey = "owner"
+
 type PubSubBase struct {
 	task.Job
 	Plugin       *Plugin
@@ -321,10 +322,14 @@ func (handler *SubscribeHandler[A, V]) Start() (err error) {
 	}
 	checkPublisherChange := func() {
 		if prePublisher != s.Publisher {
-			if s.Publisher == nil {
-				s.Info("publisher gone", "prePublisher", prePublisher.ID)
+			if prePublisher != nil {
+				if s.Publisher == nil {
+					s.Info("publisher gone", "prePublisher", prePublisher.ID)
+				} else {
+					s.Info("publisher changed", "prePublisher", prePublisher.ID, "publisher", s.Publisher.ID)
+				}
 			} else {
-				s.Info("publisher changed", "prePublisher", prePublisher.ID, "publisher", s.Publisher.ID)
+				s.Info("publisher recover", "publisher", s.Publisher.ID)
 			}
 			if s.AudioReader != nil {
 				startAudioTs = time.Duration(s.AudioReader.AbsTime) * time.Millisecond