feat: add insert sei

feat: add engine init done event refactor: remove ring_lock fix: retry connect to console fix: h265 sps parse error fix: concurrent publish desc: - 增加插入SEI帧的功能 - 增加engine初始化完成事件 - 删除ring_lock，DataTrack和MediaTrack共用一个ring - 修复console无限重连导致远程服务器崩溃问题 - 修复h265 sps解析错误问题 - 修复并发发布导致的问题
2025-10-05 16:46:58 +08:00 · 2023-06-15 20:04:14 +08:00
parent 1769ba1549
commit b87416b78e
24 changed files with 416 additions and 287 deletions
--- a/README.md
+++ b/README.md
@@ -37,6 +37,7 @@
 - 获取所有远端拉流信息 `/api/list/pull` 返回{RemoteURL:"",StreamPath:"",Type:"",StartTime:""}
 - 获取所有向远端推流信息 `/api/list/push` 返回{RemoteURL:"",StreamPath:"",Type:"",StartTime:""}
 - 停止推流 `/api/stoppush?url=xxx` 停止向xxx推流 ，成功返回ok
+- 插入SEI帧 `/api/insertsei?streamPath=xxx&type=5` 向xxx流内插入SEI帧 ，成功返回ok。type为SEI类型，可选，默认是5
 # 引擎默认配置
 ```yaml
 global:
@@ -58,12 +59,12 @@ global:
      pubaudio: true # 是否发布音频流
      pubvideo: true # 是否发布视频流
      kickexist: false # 剔出已经存在的发布者，用于顶替原有发布者
+      insertsei: false # 是否开启插入SEI信息功能
      publishtimeout: 10s # 发布流默认过期时间，超过该时间发布者没有恢复流将被删除
      delayclosetimeout: 0 # 自动关闭触发后延迟的时间(期间内如果有新的订阅则取消触发关闭)，0为关闭该功能，保持连接。
      waitclosetimeout: 0 # 发布者断开后等待时间，超过该时间发布者没有恢复流将被删除，0为关闭该功能，由订阅者决定是否删除
      buffertime: 0 # 缓存时间，用于时光回溯，0为关闭缓存
      idletimeout: 0 # 空闲超时时间，0为不限制
-      poll: 20ms # 订阅者轮询时间，伪自选锁等待周期
      key:                      # 发布鉴权key
 	    secretargname: secret     # 发布鉴权参数名
 	    expireargname:   expire   # 发布鉴权失效时间参数名
@@ -79,7 +80,6 @@ global:
      iframeonly: false # 只订阅关键帧
      waittimeout: 10s # 等待发布者的超时时间，用于订阅尚未发布的流
      writebuffersize: 0 # 订阅者写缓存大小，用于减少io次数，但可能影响实时性
-      poll: 20ms # 订阅者轮询时间，伪自选锁等待周期
      key:                      # 订阅鉴权key
 	    secretargname: secret     # 订阅鉴权参数名
 	    expireargname:   expire   # 订阅鉴权失效时间参数名
--- a/codec/h264.go
+++ b/codec/h264.go
@@ -103,7 +103,6 @@ var (
 	RTMP_KEYFRAME_HEAD    = []byte{0x17, 0x01, 0x00, 0x00, 0x00}
 	RTMP_NORMALFRAME_HEAD = []byte{0x27, 0x01, 0x00, 0x00, 0x00}
 )
-var NALU_SEI_BYTE []byte

 // H.264/AVC视频编码标准中,整个系统框架被分为了两个层面:视频编码层面(VCL)和网络抽象层面(NAL)
 // NAL - Network Abstract Layer
--- a/common/frame.go
+++ b/common/frame.go
@@ -44,23 +44,24 @@ func (r *RTPFrame) Unmarshal(raw []byte) *RTPFrame {
 	return r
 }

-type BaseFrame struct {
+type DataFrame[T any] struct {
 	DeltaTime uint32    // 相对上一帧时间戳，毫秒
 	WriteTime time.Time // 写入时间,可用于比较两个帧的先后
 	Sequence  uint32    // 在一个Track中的序号
 	BytesIn   int       // 输入字节数用于计算BPS
+	CanRead   bool      `json:"-" yaml:"-"`
+	Data      T         `json:"-" yaml:"-"`
+	sync.Cond `json:"-" yaml:"-"`
 }

-type DataFrame[T any] struct {
-	BaseFrame
-	Value T `json:"-" yaml:"-"`
+func (df *DataFrame[T]) Reset() {
+	df.BytesIn = 0
+	df.DeltaTime = 0
 }

 type AVFrame struct {
-	BaseFrame
+	DataFrame[any]
 	IFrame    bool
-	CanRead   bool `json:"-" yaml:"-"`
-	sync.Cond `json:"-" yaml:"-"`
 	PTS       time.Duration
 	DTS       time.Duration
 	Timestamp time.Duration               // 绝对时间戳
@@ -68,7 +69,6 @@ type AVFrame struct {
 	AVCC      util.BLL                    `json:"-" yaml:"-"` // 打包好的AVCC格式(MPEG-4格式、Byte-Stream Format)
 	RTP       util.List[RTPFrame]         `json:"-" yaml:"-"`
 	AUList    util.BLLs                   `json:"-" yaml:"-"` // 裸数据
-	Extras    any                         `json:"-" yaml:"-"` // 任意扩展数据
 }

 func (av *AVFrame) WriteAVCC(ts uint32, frame *util.BLL) {
@@ -97,9 +97,8 @@ func (av *AVFrame) Reset() {
 		av.ADTS.Recycle()
 		av.ADTS = nil
 	}
-	av.BytesIn = 0
 	av.Timestamp = 0
-	av.DeltaTime = 0
+	av.DataFrame.Reset()
 }

 type ParamaterSets [][]byte
--- a/common/index.go
+++ b/common/index.go
@@ -22,24 +22,25 @@ const (
 )

 // Base 基础Track类
-type Base struct {
-	Name      string
-	log.Zap   `json:"-" yaml:"-"`
-	Stream    IStream     `json:"-" yaml:"-"`
-	Attached  atomic.Bool `json:"-" yaml:"-"`
-	State     TrackState
-	ts        time.Time
-	bytes     int
-	frames    int
-	DropCount int `json:"-" yaml:"-"` //丢帧数
-	BPS       int
-	FPS       int
-	Drops     int   // 丢帧率
-	RawSize   int   // 裸数据长度
-	RawPart   []int // 裸数据片段用于UI上显示
+type Base[T any] struct {
+	RingBuffer[T] `json:"-" yaml:"-"`
+	Name          string
+	log.Zap       `json:"-" yaml:"-"`
+	Stream        IStream     `json:"-" yaml:"-"`
+	Attached      atomic.Bool `json:"-" yaml:"-"`
+	State         TrackState
+	ts            time.Time
+	bytes         int
+	frames        int
+	DropCount     int `json:"-" yaml:"-"` //丢帧数
+	BPS           int
+	FPS           int
+	Drops         int   // 丢帧率
+	RawSize       int   // 裸数据长度
+	RawPart       []int // 裸数据片段用于UI上显示
 }

-func (bt *Base) ComputeBPS(bytes int) {
+func (bt *Base[T]) ComputeBPS(bytes int) {
 	bt.bytes += bytes
 	bt.frames++
 	if elapse := time.Since(bt.ts).Seconds(); elapse > 1 {
@@ -53,22 +54,31 @@ func (bt *Base) ComputeBPS(bytes int) {
 	}
 }

-func (bt *Base) GetBase() *Base {
-	return bt
+func (bt *Base[T]) GetName() string {
+	return bt.Name
+}
+
+func (bt *Base[T]) GetBPS() int {
+	return bt.BPS
+}
+
+func (bt *Base[T]) GetFPS() int {
+	return bt.FPS
+}
+
+func (bt *Base[T]) GetDrops() int {
+	return bt.Drops
 }

 // GetRBSize 获取缓冲区大小
-func (bt *Base) GetRBSize() int {
-	return 0
+func (bt *Base[T]) GetRBSize() int {
+	return bt.RingBuffer.Size
 }

-func (bt *Base) SnapForJson() {
+func (bt *Base[T]) SnapForJson() {
 }
-func (bt *Base) Flush(bf *BaseFrame) {
-	bt.ComputeBPS(bf.BytesIn)
-	bf.WriteTime = time.Now()
-}
-func (bt *Base) SetStuff(stuff ...any) {
+
+func (bt *Base[T]) SetStuff(stuff ...any) {
 	for _, s := range stuff {
 		switch v := s.(type) {
 		case IStream:
@@ -83,11 +93,15 @@ func (bt *Base) SetStuff(stuff ...any) {
 }

 type Track interface {
-	GetBase() *Base
+	GetName() string
+	GetBPS() int
+	GetFPS() int
+	GetDrops() int
 	LastWriteTime() time.Time
 	SnapForJson()
 	SetStuff(stuff ...any)
 	GetRBSize() int
+	Dispose()
 }

 type AVTrack interface {
--- a/common/ring.go
+++ b/common/ring.go
@@ -34,8 +34,11 @@ func (rb *RingBuffer[T]) Glow(size int) (newItem *util.Ring[T]) {
 	return
 }

-func (rb *RingBuffer[T]) Reduce(size int) (newItem *util.Ring[T]) {
-	newItem = rb.Unlink(size)
+func (rb *RingBuffer[T]) Reduce(size int) (newItem *RingBuffer[T]) {
+	newItem = &RingBuffer[T]{
+		Ring: rb.Unlink(size),
+		Size: size,
+	}
 	rb.Size -= size
 	return
 }
@@ -45,7 +48,7 @@ func (rb *RingBuffer[T]) Reduce(size int) (newItem *util.Ring[T]) {
 func (rb *RingBuffer[T]) Do(f func(*T)) {
 	if rb != nil {
 		f(&rb.Value)
-		for p := rb.Next(); p != rb.Ring; p = rb.Next() {
+		for p := rb.Next(); p != rb.Ring; p = p.Next() {
 			f(&p.Value)
 		}
 	}
--- a/common/ring_lock.go
+++ b/common/ring_lock.go
@@ -1,77 +0,0 @@
-package common
-
-import (
-	"sync"
-	"sync/atomic"
-)
-
-type LockFrame[T any] struct {
-	DataFrame[T]
-	sync.RWMutex
-}
-
-type LockRing[T any] struct {
-	RingBuffer[LockFrame[T]]
-	Reset func(*DataFrame[T]) `json:"-" yaml:"-"`
-	Flag  *int32
-}
-
-func (lr *LockRing[T]) Init(n int) *LockRing[T] {
-	var flag int32
-	if lr == nil {
-		lr = &LockRing[T]{}
-	}
-	lr.Reset = func(*DataFrame[T]) {
-	}
-	lr.RingBuffer.Init(n)
-	lr.Flag = &flag
-	lr.RingBuffer.Value.Lock()
-	return lr
-}
-
-func (rb *LockRing[T]) Read() *DataFrame[T] {
-	current := &rb.RingBuffer.Value
-	current.RLock()
-	defer current.RUnlock()
-	return &current.DataFrame
-}
-
-// func (rb *LockRing[T]) Step() {
-// 	if atomic.CompareAndSwapInt32(rb.Flag, 0, 1) {
-// 		current := rb.RingBuffer.MoveNext()
-// 		current.Lock()
-// 		rb.RingBuffer.LastValue.Unlock()
-// 		//Flag不为1代表被Dispose了，但尚未处理Done
-// 		if !atomic.CompareAndSwapInt32(rb.Flag, 1, 0) {
-// 			current.Unlock()
-// 		}
-// 	}
-// }
-
-func (rb *LockRing[T]) Write(value T) {
-	rb.Value.Value = value
-	if atomic.CompareAndSwapInt32(rb.Flag, 0, 1) {
-		current := rb.RingBuffer.MoveNext()
-		current.Lock()
-		if current.Sequence != 0 {
-			rb.Reset(&current.DataFrame)
-		}
-		current.Sequence = rb.RingBuffer.MoveCount
-		rb.LastValue.Unlock()
-		//Flag不为1代表被Dispose了，但尚未处理Done
-		if !atomic.CompareAndSwapInt32(rb.Flag, 1, 0) {
-			current.Unlock()
-		}
-	}
-}
-
-func (rb *LockRing[T]) Dispose() {
-	current := &rb.RingBuffer.Value
-	if atomic.CompareAndSwapInt32(rb.Flag, 0, 2) {
-		current.Unlock()
-	} else if atomic.CompareAndSwapInt32(rb.Flag, 1, 2) {
-		//当前是1代表正在写入，此时变成2，但是Done的任务得交给NextW来处理
-	} else if atomic.CompareAndSwapInt32(rb.Flag, 0, 2) {
-		current.Unlock()
-	}
-}
--- a/config/http.go
+++ b/config/http.go
@@ -73,6 +73,7 @@ func (config *HTTP) Listen(ctx context.Context) error {
 			} else {
 				log.Info("🌐 https listen at ", Blink(config.ListenAddrTLS))
 			}
+			cer, _ := tls.X509KeyPair(LocalCert, LocalKey)
 			var server = http.Server{
 				Addr:         config.ListenAddrTLS,
 				ReadTimeout:  config.ReadTimeout,
@@ -80,6 +81,7 @@ func (config *HTTP) Listen(ctx context.Context) error {
 				IdleTimeout:  config.IdleTimeout,
 				Handler:      config.mux,
 				TLSConfig: &tls.Config{
+					Certificates: []tls.Certificate{cer},
 					CipherSuites: []uint16{
 						tls.TLS_AES_128_GCM_SHA256,
 						tls.TLS_CHACHA20_POLY1305_SHA256,
--- a/config/remote.go
+++ b/config/remote.go
@@ -39,7 +39,29 @@ func (w *myResponseWriter3) Hijack() (net.Conn, *bufio.ReadWriter, error) {
 	return net.Conn(w), bufio.NewReadWriter(bufio.NewReader(w), bufio.NewWriter(w)), nil
 }

-func (cfg *Engine) Remote(ctx context.Context) error {
+func (cfg *Engine) WtRemote(ctx context.Context) {
+	retryDelay := [...]int{2, 3, 5, 8, 13}
+	for i := 0; ctx.Err() == nil; i++ {
+		connected, err := cfg.Remote(ctx)
+		if err == nil {
+			//不需要重试了，服务器返回了错误
+			return
+		}
+		if Global.LogLang == "zh" {
+			log.Error("连接到控制台服务器", cfg.Server, "失败", err)
+		} else {
+			log.Error("connect to console server ", cfg.Server, " ", err)
+		}
+		if connected {
+			i = 0
+		} else if i >= 5 {
+			i = 4
+		}
+		time.Sleep(time.Second * time.Duration(retryDelay[i]))
+	}
+}
+
+func (cfg *Engine) Remote(ctx context.Context) (wasConnected bool, err error) {
 	tlsConf := &tls.Config{
 		InsecureSkipVerify: true,
 		NextProtos:         []string{"monibuca"},
@@ -49,7 +71,7 @@ func (cfg *Engine) Remote(ctx context.Context) error {
 		KeepAlivePeriod: time.Second * 10,
 		EnableDatagrams: true,
 	})
-	wasConnected := err == nil
+	wasConnected = err == nil
 	if stream := quic.Stream(nil); err == nil {
 		if stream, err = conn.OpenStreamSync(ctx); err == nil {
 			_, err = stream.Write(append([]byte{1}, (cfg.Secret + "\n")...))
@@ -63,7 +85,7 @@ func (cfg *Engine) Remote(ctx context.Context) error {
 							} else {
 								log.Error("response from console server ", cfg.Server, " ", rMessage["msg"])
 							}
-							return nil
+							return false, nil
 						} else {
 							cfg.reportStream = stream
 							if Global.LogLang == "zh" {
@@ -90,21 +112,7 @@ func (cfg *Engine) Remote(ctx context.Context) error {
 			go cfg.ReceiveRequest(s, conn)
 		}
 	}
-
-	if err != nil {
-		if wasConnected {
-			if Global.LogLang == "zh" {
-				log.Error("连接到控制台服务器", cfg.Server, "失败", err)
-			} else {
-				log.Error("connect to console server ", cfg.Server, " ", err)
-			}
-		}
-		if ctx.Err() == nil {
-			go cfg.Remote(ctx)
-		}
-	}
-
-	return err
+	return wasConnected, err
 }

 func (cfg *Engine) ReceiveRequest(s quic.Stream, conn quic.Connection) error {
--- a/config/types.go
+++ b/config/types.go
@@ -30,6 +30,7 @@ type PushConfig interface {
 type Publish struct {
 	PubAudio          bool          `default:"true"`
 	PubVideo          bool          `default:"true"`
+	InsertSEI         bool          // 是否启用SEI插入
 	KickExist         bool          // 是否踢掉已经存在的发布者
 	PublishTimeout    time.Duration `default:"10s"` // 发布无数据超时
 	WaitCloseTimeout  time.Duration // 延迟自动关闭（等待重连）
@@ -60,7 +61,7 @@ type Subscribe struct {
 	IFrameOnly      bool          // 只要关键帧
 	WaitTimeout     time.Duration `default:"10s"`  // 等待流超时
 	WriteBufferSize int           `default:"0"`    // 写缓冲大小
-	Poll            time.Duration `default:"20ms"` // 读取Ring时的轮询间隔,单位毫秒
+	// Poll            time.Duration `default:"20ms"` // 读取Ring时的轮询间隔,单位毫秒
 	Key             string        // 订阅鉴权key
 	SecretArgName   string        `default:"secret"` // 订阅鉴权参数名
 	ExpireArgName   string        `default:"expire"` // 订阅鉴权失效时间参数名
@@ -114,7 +115,7 @@ func (p *Push) AddPush(url string, streamPath string) {
 }

 type Console struct {
-	Server        string `default:"console.monibuca.com:4242"` //远程控制台地址
+	Server        string `default:"console.monibuca.com:44944"` //远程控制台地址
 	Secret        string //远程控制台密钥
 	PublicAddr    string //公网地址，提供远程控制台访问的地址，不配置的话使用自动识别的地址
 	PublicAddrTLS string
@@ -154,6 +155,7 @@ var Global *Engine
 func (cfg *Engine) InitDefaultHttp() {
 	Global = cfg
 	cfg.HTTP.mux = http.DefaultServeMux
+	cfg.HTTP.ListenAddrTLS = ":8443"
 	cfg.HTTP.ListenAddr = ":8080"
 }

@@ -244,7 +246,7 @@ func (cfg *Engine) OnEvent(event any) {
 		if strings.HasPrefix(cfg.Console.Server, "wss") {
 			go cfg.WsRemote()
 		} else {
-			go cfg.Remote(v)
+			go cfg.WtRemote(v)
 		}
 	}
 }
--- a/http.go
+++ b/http.go
@@ -2,6 +2,7 @@ package engine

 import (
 	"encoding/json"
+	"io"
 	"net/http"
 	"os"
 	"strconv"
@@ -341,3 +342,33 @@ func (conf *GlobalConfig) API_replay_mp4(w http.ResponseWriter, r *http.Request)
 		go pub.ReadMP4Data(f)
 	}
 }
+
+func (conf *GlobalConfig) API_insertSEI(w http.ResponseWriter, r *http.Request) {
+	q := r.URL.Query()
+	streamPath := q.Get("streamPath")
+	s := Streams.Get(streamPath)
+	if s == nil {
+		http.Error(w, NO_SUCH_STREAM, http.StatusNotFound)
+		return
+	}
+	t := q.Get("type")
+	tb, err := strconv.ParseInt(t, 10, 8)
+	if err != nil {
+		if t == "" {
+			tb = 5
+		} else {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+	}
+	sei, err := io.ReadAll(r.Body)
+	if err == nil {
+		if s.Tracks.AddSEI(byte(tb), sei) {
+			w.Write([]byte("ok"))
+		} else {
+			http.Error(w, "no sei track", http.StatusBadRequest)
+		}
+	} else {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+	}
+}
--- a/io.go
+++ b/io.go
@@ -165,9 +165,6 @@ func (io *IO) receive(streamPath string, specific IIO) error {
 		io.Context, io.CancelFunc = context.WithCancel(Engine)
 	}
 	s, create := findOrCreateStream(u.Path, wt)
-	if s == nil {
-		return ErrBadStreamName
-	}
 	io.Stream = s
 	io.Spesific = specific
 	io.StartTime = time.Now()
@@ -182,6 +179,8 @@ func (io *IO) receive(streamPath string, specific IIO) error {
 		conf := v.GetPublisher().Config
 		io.Type = strings.TrimSuffix(io.Type, "Publisher")
 		io.Info("publish")
+		s.pubLocker.Lock()
+		defer s.pubLocker.Unlock()
 		oldPublisher := s.Publisher
 		if oldPublisher != nil && !oldPublisher.IsClosed() {
 			// 根据配置是否剔出原来的发布者
--- a/log/log.go
+++ b/log/log.go
@@ -95,10 +95,8 @@ func (l *Logger) formatLang(msg *string, fields []zapcore.Field) {
 }

 func (l *Logger) Trace(msg string, fields ...zap.Field) {
-	if Trace {
-		l.formatLang(&msg, fields)
-		l.Logger.Debug(msg, fields...)
-	}
+	l.formatLang(&msg, fields)
+	l.Logger.Debug(msg, fields...)
 }

 func (l *Logger) Debug(msg string, fields ...zap.Field) {
--- a/main.go
+++ b/main.go
@@ -144,16 +144,16 @@ func Run(ctx context.Context, configFile string) (err error) {
 		version = ver
 	}
 	if EngineConfig.LogLang == "zh" {
-		log.Info("monibuca 引擎版本：", version, Green(" 启动成功"))
+		log.Info("monibuca ", version, Green(" 启动成功"))
 	} else {
-		log.Info("monibuca", version, Green(" start success"))
+		log.Info("monibuca ", version, Green(" start success"))
 	}
-	var enabledPlugins, disabledPlugins []string
+	var enabledPlugins, disabledPlugins []*Plugin
 	for _, plugin := range plugins {
 		if plugin.Disabled {
-			disabledPlugins = append(disabledPlugins, plugin.Name)
+			disabledPlugins = append(disabledPlugins, plugin)
 		} else {
-			enabledPlugins = append(enabledPlugins, plugin.Name)
+			enabledPlugins = append(enabledPlugins, plugin)
 		}
 	}
 	if EngineConfig.LogLang == "zh" {
@@ -162,7 +162,7 @@ func Run(ctx context.Context, configFile string) (err error) {
 		fmt.Print("enabled plugins：")
 	}
 	for _, plugin := range enabledPlugins {
-		fmt.Print(Colorize(" "+plugin+" ", BlackFg|GreenBg|BoldFm), " ")
+		fmt.Print(Colorize(" "+plugin.Name+" ", BlackFg|GreenBg|BoldFm), " ")
 	}
 	fmt.Println()
 	if EngineConfig.LogLang == "zh" {
@@ -171,7 +171,7 @@ func Run(ctx context.Context, configFile string) (err error) {
 		fmt.Print("disabled plugins：")
 	}
 	for _, plugin := range disabledPlugins {
-		fmt.Print(Colorize(" "+plugin+" ", BlackFg|RedBg|CrossedOutFm), " ")
+		fmt.Print(Colorize(" "+plugin.Name+" ", BlackFg|RedBg|CrossedOutFm), " ")
 	}
 	fmt.Println()
 	fmt.Println(Bold(Cyan("官网地址: ")), Yellow("https://m7s.live"))
@@ -179,6 +179,7 @@ func Run(ctx context.Context, configFile string) (err error) {
 	fmt.Println(Bold(Cyan("文档地址: ")), Yellow("https://docs.m7s.live"))
 	fmt.Println(Bold(Cyan("视频教程: ")), Yellow("https://space.bilibili.com/328443019/channel/collectiondetail?sid=514619"))
 	fmt.Println(Bold(Cyan("远程界面: ")), Yellow("https://console.monibuca.com"))
+	fmt.Println(Yellow("关注公众号：不卡科技，获取更多信息"))
 	rp := struct {
 		UUID     string `json:"uuid"`
 		Machine  string `json:"machine"`
@@ -194,17 +195,18 @@ func Run(ctx context.Context, configFile string) (err error) {
 	}
 	var c http.Client
 	c.Do(req)
+	for _, plugin := range enabledPlugins {
+		plugin.Config.OnEvent(EngineConfig) //引擎初始化完成后，通知插件
+	}
 	for {
 		select {
 		case event := <-EventBus:
 			ts := time.Now()
-			for _, plugin := range Plugins {
-				if !plugin.Disabled {
-					ts := time.Now()
-					plugin.Config.OnEvent(event)
-					if cost := time.Since(ts); cost > time.Millisecond*100 {
-						plugin.Warn("event cost too much time", zap.String("event", fmt.Sprintf("%v", event)), zap.Duration("cost", cost))
-					}
+			for _, plugin := range enabledPlugins {
+				ts := time.Now()
+				plugin.Config.OnEvent(event)
+				if cost := time.Since(ts); cost > time.Millisecond*100 {
+					plugin.Warn("event cost too much time", zap.String("event", fmt.Sprintf("%v", event)), zap.Duration("cost", cost))
 				}
 			}
 			EngineConfig.OnEvent(event)
--- a/stream.go
+++ b/stream.go
@@ -10,6 +10,8 @@ import (

 	. "github.com/logrusorgru/aurora"
 	"go.uber.org/zap"
+	"m7s.live/engine/v4/codec"
+	"m7s.live/engine/v4/common"
 	. "m7s.live/engine/v4/common"
 	"m7s.live/engine/v4/config"
 	"m7s.live/engine/v4/log"
@@ -130,6 +132,7 @@ type StreamTimeoutConfig struct {
 type Tracks struct {
 	sync.Map
 	MainVideo *track.Video
+	SEI       *track.Data[[]byte]
 }

 func (tracks *Tracks) Range(f func(name string, t Track)) {
@@ -146,6 +149,11 @@ func (tracks *Tracks) Add(name string, t Track) bool {
 			tracks.MainVideo = v
 			tracks.SetIDR(v)
 		}
+		if tracks.SEI != nil {
+			v.SEIReader = &track.DataReader[[]byte]{
+				Ring: tracks.SEI.Ring,
+			}
+		}
 	case *track.Audio:
 		if tracks.MainVideo != nil {
 			v.Narrow()
@@ -165,6 +173,24 @@ func (tracks *Tracks) SetIDR(video Track) {
 	}
 }

+func (tracks *Tracks) AddSEI(t byte, data []byte) bool {
+	if tracks.SEI != nil {
+		l := len(data)
+		var buffer util.Buffer
+		buffer.WriteByte(byte(codec.NALU_SEI))
+		buffer.WriteByte(t)
+		for l > 255 {
+			buffer.WriteByte(255)
+			l -= 255
+		}
+		buffer.WriteByte(byte(l))
+		buffer.Write(data)
+		tracks.SEI.Push(buffer)
+		return true
+	}
+	return false
+}
+
 func (tracks *Tracks) MarshalJSON() ([]byte, error) {
 	var trackList []Track
 	tracks.Range(func(_ string, t Track) {
@@ -190,6 +216,7 @@ type Stream struct {
 	AppName     string
 	StreamName  string
 	IsPause     bool // 是否处于暂停状态
+	pubLocker   sync.Mutex
 }
 type StreamSummay struct {
 	Path        string
@@ -222,8 +249,7 @@ func (s *Stream) Summary() (r StreamSummay) {
 		r.Type = s.Publisher.GetPublisher().Type
 	}
 	s.Tracks.Range(func(name string, t Track) {
-		b := t.GetBase()
-		r.BPS += b.BPS
+		r.BPS += t.GetBPS()
 		r.Tracks = append(r.Tracks, name)
 	})
 	r.Path = s.Path
@@ -245,22 +271,20 @@ func findOrCreateStream(streamPath string, waitTimeout time.Duration) (s *Stream
 		log.Warn(Red("Stream Path Format Error:"), streamPath)
 		return nil, false
 	}
-	if s := Streams.Get(streamPath); s != nil {
+	actual, loaded := Streams.LoadOrStore(streamPath, &Stream{
+		Path:       streamPath,
+		AppName:    p[0],
+		StreamName: strings.Join(p[1:], "/"),
+		StartTime:  time.Now(),
+	})
+	if s := actual.(*Stream); loaded {
 		s.Debug("Stream Found")
 		return s, false
 	} else {
-		p := strings.Split(streamPath, "/")
-		s = &Stream{
-			Path:       streamPath,
-			AppName:    p[0],
-			StreamName: strings.Join(p[1:], "/"),
-			StartTime:  time.Now(),
-			timeout:    time.NewTimer(waitTimeout),
-		}
+		s.timeout = time.NewTimer(waitTimeout)
 		s.Subscribers.Init()
 		s.Logger = log.LocaleLogger.With(zap.String("stream", streamPath))
 		s.Info("created")
-		Streams.Set(streamPath, s)
 		s.actionChan.Init(1)
 		go s.run()
 		return s, true
@@ -430,13 +454,13 @@ func (s *Stream) run() {
 					}
 					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) > timeout {
-							s.Warn("track timeout", zap.String("name", name), zap.Time("last writetime", lastWriteTime), zap.Duration("timeout", timeout))
-							hasTrackTimeout = true
+						switch t.(type) {
+						case *track.Video, *track.Audio:
+							// track 超过一定时间没有更新数据了
+							if lastWriteTime := t.LastWriteTime(); !lastWriteTime.IsZero() && time.Since(lastWriteTime) > timeout {
+								s.Warn("track timeout", zap.String("name", name), zap.Time("last writetime", lastWriteTime), zap.Duration("timeout", timeout))
+								hasTrackTimeout = true
+							}
 						}
 					})
 					if trackCount == 0 || hasTrackTimeout || (s.Publisher != nil && s.Publisher.IsClosed()) {
@@ -470,6 +494,16 @@ func (s *Stream) run() {
 					}
 					if s.action(ACTION_PUBLISH) || republish || kicked {
 						v.Resolve()
+						if s.Publisher.GetPublisher().Config.InsertSEI {
+							if s.Tracks.SEI == nil {
+								s.Tracks.SEI = track.NewDataTrack[[]byte]("sei")
+								s.Tracks.SEI.Locker = &sync.Mutex{}
+								s.Tracks.SEI.SetStuff(s)
+								if s.Tracks.Add("sei", s.Tracks.SEI) {
+									s.Info("sei track added")
+								}
+							}
+						}
 					} else {
 						v.Reject(ErrBadStreamName)
 					}
@@ -526,13 +560,11 @@ func (s *Stream) run() {
 					s.onSuberClose(v)
 				case TrackRemoved:
 					timeOutInfo = zap.String("action", "TrackRemoved")
-					name := v.GetBase().Name
+					name := v.GetName()
 					if t, ok := s.Tracks.LoadAndDelete(name); ok {
 						s.Info("track -1", zap.String("name", name))
 						s.Subscribers.Broadcast(t)
-						if dt, ok := t.(track.Custom); ok {
-							dt.Dispose()
-						}
+						t.(common.Track).Dispose()
 					}
 				case *util.Promise[Track]:
 					timeOutInfo = zap.String("action", "Track")
@@ -540,7 +572,7 @@ func (s *Stream) run() {
 						s.action(ACTION_PUBLISH)
 					}
 					pubConfig := s.GetPublisherConfig()
-					name := v.Value.GetBase().Name
+					name := v.Value.GetName()
 					if _, ok := v.Value.(*track.Video); ok && !pubConfig.PubVideo {
 						v.Reject(ErrTrackMute)
 						continue
@@ -575,9 +607,7 @@ func (s *Stream) run() {
 			} else {
 				s.Subscribers.Dispose()
 				s.Tracks.Range(func(_ string, t Track) {
-					if dt, ok := t.(track.Custom); ok {
-						dt.Dispose()
-					}
+					t.Dispose()
 				})
 				return
 			}
--- a/subscriber.go
+++ b/subscriber.go
@@ -148,7 +148,7 @@ func (s *Subscriber) OnEvent(event any) {
 }

 func (s *Subscriber) CreateTrackReader(t *track.Media) (result *track.AVRingReader) {
-	result = track.NewAVRingReader(t, s.Config.Poll)
+	result = track.NewAVRingReader(t)
 	result.Logger = s.With(zap.String("track", t.Name))
 	return
 }
@@ -170,7 +170,7 @@ func (s *Subscriber) AddTrack(t Track) bool {
 	default:
 		return false
 	}
-	s.Info("track+1", zap.String("name", t.GetBase().Name))
+	s.Info("track+1", zap.String("name", t.GetName()))
 	return true
 }

@@ -236,11 +236,12 @@ func (s *Subscriber) PlayBlock(subType byte) {
 		var videoSeq, audioSeq uint16
 		sendVideoFrame = func(frame *AVFrame) {
 			// fmt.Println("v", frame.Sequence, frame.AbsTime, s.VideoReader.AbsTime, frame.IFrame)
+			delta := uint32(s.VideoReader.SkipTs * 90 / time.Millisecond)
 			frame.RTP.Range(func(vp RTPFrame) bool {
 				videoSeq++
 				copy := *vp.Packet
 				vp.Packet = &copy
-				vp.Header.Timestamp = vp.Header.Timestamp - uint32(s.VideoReader.SkipTs*90/time.Millisecond)
+				vp.Header.Timestamp = vp.Header.Timestamp - delta
 				vp.Header.SequenceNumber = videoSeq
 				spesic.OnEvent((VideoRTP)(vp))
 				return true
@@ -249,12 +250,13 @@ func (s *Subscriber) PlayBlock(subType byte) {

 		sendAudioFrame = func(frame *AVFrame) {
 			// fmt.Println("a", frame.Sequence, frame.AbsTime, s.AudioReader.AbsTime)
+			delta := uint32(s.AudioReader.SkipTs / time.Millisecond * time.Duration(s.AudioReader.Track.SampleRate) / 1000)
 			frame.RTP.Range(func(ap RTPFrame) bool {
 				audioSeq++
 				copy := *ap.Packet
 				ap.Packet = &copy
 				ap.Header.SequenceNumber = audioSeq
-				ap.Header.Timestamp = ap.Header.Timestamp - uint32(s.AudioReader.SkipTs/time.Millisecond*time.Duration(s.AudioReader.Track.SampleRate)/1000)
+				ap.Header.Timestamp = ap.Header.Timestamp - delta
 				spesic.OnEvent((AudioRTP)(ap))
 				return true
 			})
--- a/track/base.go
+++ b/track/base.go
@@ -8,13 +8,16 @@ import (
 	"go.uber.org/zap"
 	. "m7s.live/engine/v4/common"
 	"m7s.live/engine/v4/config"
+	"m7s.live/engine/v4/log"
 	"m7s.live/engine/v4/util"
 )

-type EmptyLocker struct{}
+type emptyLocker struct{}

-func (EmptyLocker) Lock()   {}
-func (EmptyLocker) Unlock() {}
+func (emptyLocker) Lock()   {}
+func (emptyLocker) Unlock() {}
+
+var EmptyLocker emptyLocker

 type 流速控制 struct {
 	起始时间戳 time.Duration
@@ -70,25 +73,24 @@ type SpesificTrack interface {
 }

 type IDRingList struct {
-	util.List[*util.Ring[AVFrame]]
+	IDRList     util.List[*util.Ring[AVFrame]]
 	IDRing      *util.Ring[AVFrame]
 	HistoryRing *util.Ring[AVFrame]
 }

 func (p *IDRingList) AddIDR(IDRing *util.Ring[AVFrame]) {
-	p.PushValue(IDRing)
+	p.IDRList.PushValue(IDRing)
 	p.IDRing = IDRing
 }

 func (p *IDRingList) ShiftIDR() {
-	p.Shift()
-	p.HistoryRing = p.Next.Value
+	p.IDRList.Shift()
+	p.HistoryRing = p.IDRList.Next.Value
 }

 // Media 基础媒体Track类
 type Media struct {
-	Base
-	RingBuffer[AVFrame]
+	Base[AVFrame]
 	PayloadType     byte
 	IDRingList      `json:"-" yaml:"-"` //最近的关键帧位置，首屏渲染
 	SSRC            uint32
@@ -104,6 +106,10 @@ type Media struct {
 	流速控制
 }

+func (av *Media) Dispose() {
+	av.Value.Broadcast()
+}
+
 func (av *Media) GetFromPool(b util.IBytes) (item *util.ListItem[util.Buffer]) {
 	if b.Reuse() {
 		item = av.BytesPool.Get(b.Len())
@@ -114,10 +120,6 @@ func (av *Media) GetFromPool(b util.IBytes) (item *util.ListItem[util.Buffer]) {
 	return
 }

-func (av *Media) GetRBSize() int {
-	return av.RingBuffer.Size
-}
-
 func (av *Media) GetRTPFromPool() (result *util.ListItem[RTPFrame]) {
 	result = av.RtpPool.Get()
 	if result.Value.Packet == nil {
@@ -158,7 +160,7 @@ func (av *Media) SetStuff(stuff ...any) {
 		switch v := s.(type) {
 		case int:
 			av.Init(v)
-			av.Value.L = EmptyLocker{}
+			av.Value.L = EmptyLocker
 			av.SSRC = uint32(uintptr(unsafe.Pointer(av)))
 			av.等待上限 = config.Global.SpeedLimit
 		case uint32:
@@ -179,17 +181,6 @@ func (av *Media) LastWriteTime() time.Time {
 	return av.LastValue.WriteTime
 }

-// func (av *Media) Play(ctx context.Context, onMedia func(*AVFrame) error) error {
-// 	for ar := av.ReadRing(); ctx.Err() == nil; ar.MoveNext() {
-// 		ap := ar.Read(ctx)
-// 		if err := onMedia(ap); err != nil {
-// 			// TODO: log err
-// 			return err
-// 		}
-// 	}
-// 	return ctx.Err()
-// }
-
 func (av *Media) CurrentFrame() *AVFrame {
 	return &av.Value
 }
@@ -216,9 +207,11 @@ func (av *Media) AppendAuBytes(b ...[]byte) {

 func (av *Media) narrow(gop int) {
 	if l := av.Size - gop; l > 12 {
-		// av.Debug("resize", zap.Int("before", av.Size), zap.Int("after", av.Size-5))
+		if log.Trace {
+			av.Trace("resize", zap.Int("before", av.Size), zap.Int("after", av.Size-5))
+		}
 		//缩小缓冲环节省内存
-		av.Reduce(5).Do(func(v AVFrame) {
+		av.Reduce(5).Do(func(v *AVFrame) {
 			v.Reset()
 		})
 	}
@@ -283,16 +276,20 @@ func (av *Media) Flush() {

 		curValue.DeltaTime = uint32(deltaTS(curValue.Timestamp, preValue.Timestamp) / time.Millisecond)
 	}
-	av.Trace("write", zap.Uint32("seq", curValue.Sequence), zap.Duration("dts", curValue.DTS), zap.Duration("dts delta", curValue.DTS-preValue.DTS), zap.Uint32("delta", curValue.DeltaTime), zap.Duration("timestamp", curValue.Timestamp))
+	if log.Trace {
+		av.Trace("write", zap.Uint32("seq", curValue.Sequence), zap.Duration("dts", curValue.DTS), zap.Duration("dts delta", curValue.DTS-preValue.DTS), zap.Uint32("delta", curValue.DeltaTime), zap.Duration("timestamp", curValue.Timestamp), zap.Int("au", curValue.AUList.Length), zap.Int("rtp", curValue.RTP.Length), zap.Int("avcc", curValue.AVCC.ByteLength), zap.Int("raw", curValue.AUList.ByteLength), zap.Int("bps", av.BPS))
+	}
 	bufferTime := av.Stream.GetPublisherConfig().BufferTime
-	if bufferTime > 0 && av.IDRingList.Length > 1 && deltaTS(curValue.Timestamp, av.IDRingList.Next.Next.Value.Value.Timestamp) > bufferTime {
+	if bufferTime > 0 && av.IDRingList.IDRList.Length > 1 && deltaTS(curValue.Timestamp, av.IDRingList.IDRList.Next.Next.Value.Value.Timestamp) > bufferTime {
 		av.ShiftIDR()
 		av.narrow(int(curValue.Sequence - av.HistoryRing.Value.Sequence))
 	}
 	// 下一帧为订阅起始帧，即将覆盖，需要扩环
 	if nextValue == av.IDRing || nextValue == av.HistoryRing {
 		// if av.AVRing.Size < 512 {
-		// av.Stream.Debug("resize", zap.Int("before", av.Size), zap.Int("after", av.Size+5), zap.String("name", av.Name))
+		if log.Trace {
+			av.Stream.Trace("resize", zap.Int("before", av.Size), zap.Int("after", av.Size+5), zap.String("name", av.Name))
+		}
 		av.Glow(5)
 		// } else {
 		// 	av.Stream.Error("sub ring overflow", zap.Int("size", av.AVRing.Size), zap.String("name", av.Name))
@@ -309,7 +306,8 @@ func (av *Media) Flush() {
 			av.CompleteAVCC(curValue)
 		}
 	}
-	av.Base.Flush(&curValue.BaseFrame)
+	av.ComputeBPS(curValue.BytesIn)
+	curValue.WriteTime = time.Now()
 	if av.等待上限 > 0 {
 		av.控制流速(curValue.Timestamp, curValue.DTS)
 	}
@@ -318,7 +316,7 @@ func (av *Media) Flush() {
 	curValue.CanRead = false
 	curValue.Reset()
 	if curValue.L == nil {
-		curValue.L = EmptyLocker{}
+		curValue.L = EmptyLocker
 	}
 	curValue.Sequence = av.MoveCount
 	preValue.CanRead = true
--- a/track/data.go
+++ b/track/data.go
@@ -7,30 +7,13 @@ import (

 	"go.uber.org/zap"
 	. "m7s.live/engine/v4/common"
+	"m7s.live/engine/v4/log"
 	"m7s.live/engine/v4/util"
 )

-type Custom interface {
-	Track
-	Dispose()
-}
-
 type Data[T any] struct {
-	Base
-	LockRing[T]
-	sync.Locker // 写入锁，可选，单一协程写入可以不加锁
-}
-
-func (d *Data[T]) GetRBSize() int {
-	return d.LockRing.RingBuffer.Size
-}
-
-func (d *Data[T]) ReadRing() *LockRing[T] {
-	return util.Clone(d.LockRing)
-}
-
-func (d *Data[T]) LastWriteTime() time.Time {
-	return d.LockRing.RingBuffer.LastValue.WriteTime
+	Base[DataFrame[T]]
+	sync.Locker `json:"-" yaml:"-"` // 写入锁，可选，单一协程写入可以不加锁
 }

 func (dt *Data[T]) Push(data T) {
@@ -38,21 +21,43 @@ func (dt *Data[T]) Push(data T) {
 		dt.Lock()
 		defer dt.Unlock()
 	}
-	dt.Value.WriteTime = time.Now()
-	dt.Write(data)
+	curValue := &dt.Value
+	if log.Trace {
+		dt.Trace("push data", zap.Uint32("sequence", curValue.Sequence))
+	}
+	curValue.WriteTime = time.Now()
+	curValue.Data = data
+	preValue := curValue
+	curValue = dt.MoveNext()
+	curValue.CanRead = false
+	curValue.Reset()
+	if curValue.L == nil {
+		curValue.L = EmptyLocker
+	}
+	curValue.Sequence = dt.MoveCount
+	preValue.CanRead = true
+	preValue.Broadcast()
 }

-func (d *Data[T]) Play(ctx context.Context, onData func(*DataFrame[T]) error) error {
-	for r := d.ReadRing(); ctx.Err() == nil; r.MoveNext() {
-		p := r.Read()
-		if *r.Flag == 2 {
-			break
-		}
-		if err := onData(p); err != nil {
-			return err
-		}
+func (d *Data[T]) Play(ctx context.Context, onData func(*DataFrame[T]) error) (err error) {
+	d.Debug("play data track")
+	reader := DataReader[T]{
+		Ctx:  ctx,
+		Ring: d.Ring,
+	}
+	for {
+		curValue := reader.Read()
+		if err = ctx.Err(); err != nil {
+			return
+		}
+		if log.Trace {
+			d.Trace("read data", zap.Uint32("sequence", curValue.Sequence))
+		}
+		if err = onData(curValue); err == nil {
+			err = ctx.Err()
+		}
+		reader.MoveNext()
 	}
-	return ctx.Err()
 }

 func (d *Data[T]) Attach(s IStream) {
@@ -64,9 +69,70 @@ func (d *Data[T]) Attach(s IStream) {
 	}
 }

+func (d *Data[T]) Dispose() {
+	d.Value.Broadcast()
+}
+
+func (d *Data[T]) LastWriteTime() time.Time {
+	return d.LastValue.WriteTime
+}
+
 func NewDataTrack[T any](name string) (dt *Data[T]) {
 	dt = &Data[T]{}
 	dt.Init(10)
+	dt.Value.L = EmptyLocker
+	dt.SetStuff(name)
+	return
+}
+
+type RecycleData[T util.Recyclable] struct {
+	Data[T]
+}
+
+func (dt *RecycleData[T]) Push(data T) {
+	if dt.Locker != nil {
+		dt.Lock()
+		defer dt.Unlock()
+	}
+	curValue := &dt.Value
+	if log.Trace {
+		dt.Trace("push data", zap.Uint32("sequence", curValue.Sequence))
+	}
+	curValue.WriteTime = time.Now()
+	curValue.Data = data
+	preValue := curValue
+	curValue = dt.MoveNext()
+	curValue.CanRead = false
+	curValue.Reset()
+	if curValue.L == nil {
+		curValue.L = EmptyLocker
+	} else {
+		curValue.Data.Recycle()
+	}
+	curValue.Sequence = dt.MoveCount
+	preValue.CanRead = true
+	preValue.Broadcast()
+}
+
+func NewRecycleDataTrack[T util.Recyclable](name string) (dt *RecycleData[T]) {
+	dt = &RecycleData[T]{}
+	dt.Init(10)
+	dt.Value.L = EmptyLocker
+	dt.SetStuff(name)
+	return
+}
+
+type BytesData struct {
+	RecycleData[*util.ListItem[util.Buffer]]
+	Pool util.BytesPool
+}
+
+func NewBytesDataTrack(name string) (dt *BytesData) {
+	dt = &BytesData{
+		Pool: make(util.BytesPool, 17),
+	}
+	dt.Init(10)
+	dt.Value.L = EmptyLocker
 	dt.SetStuff(name)
 	return
 }
--- a/track/h264.go
+++ b/track/h264.go
@@ -7,6 +7,7 @@ import (
 	"go.uber.org/zap"
 	"m7s.live/engine/v4/codec"
 	. "m7s.live/engine/v4/common"
+	"m7s.live/engine/v4/log"
 	"m7s.live/engine/v4/util"
 )

@@ -32,7 +33,9 @@ func NewH264(stream IStream, stuff ...any) (vt *H264) {

 func (vt *H264) WriteSliceBytes(slice []byte) {
 	naluType := codec.ParseH264NALUType(slice[0])
-	vt.Trace("naluType", zap.Uint8("naluType", naluType.Byte()))
+	if log.Trace {
+		vt.Trace("naluType", zap.Uint8("naluType", naluType.Byte()))
+	}
 	switch naluType {
 	case codec.NALU_SPS:
 		spsInfo, _ := codec.ParseSPS(slice)
--- a/track/h265.go
+++ b/track/h265.go
@@ -79,7 +79,7 @@ func (vt *H265) WriteSliceBytes(slice []byte) {
 func (vt *H265) writeSequenceHead(head []byte) (err error) {
 	vt.WriteSequenceHead(head)
 	if vt.VPS, vt.SPS, vt.PPS, err = codec.ParseVpsSpsPpsFromSeqHeaderWithoutMalloc(vt.SequenceHead); err == nil {
-		vt.SPSInfo, _ = codec.ParseHevcSPS(vt.SequenceHead)
+		vt.SPSInfo, _ = codec.ParseHevcSPS(vt.SPS)
 		vt.nalulenSize = (int(vt.SequenceHead[26]) & 0x03) + 1
 	} else {
 		vt.Error("H265 ParseVpsSpsPps Error")
@@ -94,6 +94,7 @@ func (vt *H265) WriteAVCC(ts uint32, frame *util.BLL) (err error) {
 	}
 	b0 := frame.GetByte(0)
 	if isExtHeader := (b0 >> 4) & 0b1000; isExtHeader != 0 {
+		firstBuffer := frame.Next.Value
 		packetType := b0 & 0b1111
 		switch packetType {
 		case codec.PacketTypeSequenceStart:
@@ -107,18 +108,18 @@ func (vt *H265) WriteAVCC(ts uint32, frame *util.BLL) (err error) {
 			frame.Recycle()
 			return
 		case codec.PacketTypeCodedFrames:
-			frame.Next.Value[0] = b0 & 0b0111_1111 & 0xFC
-			frame.Next.Value[1] = 0x01
-			copy(frame.Next.Value[2:], frame.Next.Value[5:])
-			frame.Next.Value = frame.Next.Value[:frame.Next.Value.Len()-3]
+			firstBuffer[0] = b0 & 0b0111_1111 & 0xFC
+			firstBuffer[1] = 0x01
+			copy(firstBuffer[2:], firstBuffer[5:])
+			frame.Next.Value = firstBuffer[:firstBuffer.Len()-3]
 			frame.ByteLength -= 3
 			return vt.Video.WriteAVCC(ts, frame)
 		case codec.PacketTypeCodedFramesX:
-			frame.Next.Value[0] = b0 & 0b0111_1111 & 0xFC
-			frame.Next.Value[1] = 0x01
-			frame.Next.Value[2] = 0
-			frame.Next.Value[3] = 0
-			frame.Next.Value[4] = 0
+			firstBuffer[0] = b0 & 0b0111_1111 & 0xFC
+			firstBuffer[1] = 0x01
+			firstBuffer[2] = 0
+			firstBuffer[3] = 0
+			firstBuffer[4] = 0
 			return vt.Video.WriteAVCC(ts, frame)
 		}
 	} else {
--- a/track/reader-av.go
+++ b/track/reader-av.go
@@ -2,7 +2,6 @@ package track

 import (
 	"context"
-	"runtime"
 	"time"

 	"go.uber.org/zap"
@@ -24,9 +23,10 @@ const (

 type AVRingReader struct {
 	ctx   context.Context
+	mode  int
 	Track *Media
 	*util.Ring[common.AVFrame]
-	wait       func()
+	// wait       func()
 	State      byte
 	FirstSeq   uint32
 	FirstTs    time.Duration
@@ -44,17 +44,17 @@ func (r *AVRingReader) DecConfChanged() bool {
 	return r.ConfSeq != r.Track.SequenceHeadSeq
 }

-func NewAVRingReader(t *Media, poll time.Duration) *AVRingReader {
+func NewAVRingReader(t *Media) *AVRingReader {
 	r := &AVRingReader{
 		Track: t,
 	}
-	if poll == 0 {
-		r.wait = runtime.Gosched
-	} else {
-		r.wait = func() {
-			time.Sleep(poll)
-		}
-	}
+	// if poll == 0 {
+	// 	r.wait = runtime.Gosched
+	// } else {
+	// 	r.wait = func() {
+	// 		time.Sleep(poll)
+	// 	}
+	// }
 	return r
 }

@@ -63,7 +63,7 @@ func (r *AVRingReader) ReadFrame() *common.AVFrame {
 		r.Frame.Wait()
 	}
 	// 超过一半的缓冲区大小，说明Reader太慢，需要丢帧
-	if r.State == READSTATE_NORMAL && r.Track.LastValue.Sequence-r.Frame.Sequence > uint32(r.Track.Size/2) && r.Track.IDRing != nil && r.Track.IDRing.Value.Sequence > r.Frame.Sequence {
+	if r.mode != SUBMODE_BUFFER && r.State == READSTATE_NORMAL && r.Track.LastValue.Sequence-r.Frame.Sequence > uint32(r.Track.Size/2) && r.Track.IDRing != nil && r.Track.IDRing.Value.Sequence > r.Frame.Sequence {
 		r.Warn("reader too slow", zap.Uint32("lastSeq", r.Track.LastValue.Sequence), zap.Uint32("seq", r.Frame.Sequence))
 		r.Ring = r.Track.IDRing
 		return r.ReadFrame()
@@ -84,6 +84,7 @@ func (r *AVRingReader) MoveNext() {

 func (r *AVRingReader) Read(ctx context.Context, mode int) (err error) {
 	r.ctx = ctx
+	r.mode = mode
 	switch r.State {
 	case READSTATE_INIT:
 		r.Info("start read", zap.Int("mode", mode))
--- a/track/reader-data.go
+++ b/track/reader-data.go
@@ -0,0 +1,37 @@
+package track
+
+import (
+	"context"
+
+	"m7s.live/engine/v4/common"
+	"m7s.live/engine/v4/util"
+)
+
+type DataReader[T any] struct {
+	Ctx context.Context
+	// common.Track
+	*util.Ring[common.DataFrame[T]]
+	// startTime time.Time
+	// Frame     *common.DataFrame[T]
+	// Delay     uint32
+	// *log.Logger
+}
+
+func (r *DataReader[T]) Read() (item *common.DataFrame[T]) {
+	item = &r.Value
+	if r.Ctx.Err() == nil && !item.CanRead {
+		item.Wait()
+	}
+	return
+}
+
+func (r *DataReader[T]) TryRead() (item *common.DataFrame[T]) {
+	if item = &r.Value; item.CanRead {
+		return
+	}
+	return nil
+}
+
+func (r *DataReader[T]) MoveNext() {
+	r.Ring = r.Next()
+}
--- a/track/rtp.go
+++ b/track/rtp.go
@@ -39,7 +39,7 @@ func (av *Media) WriteRTP(raw *util.ListItem[RTPFrame]) {
 			av.WriteRTPFrame(&frame.Value)
 			// av.Info("rtp", zap.Uint32("ts", (frame.Value.Timestamp)), zap.Int("len", len(frame.Value.Payload)), zap.Bool("marker", frame.Value.Marker), zap.Uint16("seq", frame.Value.SequenceNumber))
 		} else {
-			av.Warn("rtp payload is empty", zap.Uint32("ts", (frame.Value.Timestamp)), zap.Any("ext", frame.Value.GetExtensionIDs()), zap.Uint16("seq", frame.Value.SequenceNumber))
+			av.Debug("rtp payload is empty", zap.Uint32("ts", (frame.Value.Timestamp)), zap.Any("ext", frame.Value.GetExtensionIDs()), zap.Uint16("seq", frame.Value.SequenceNumber))
 			frame.Recycle()
 		}
 	}
--- a/track/video.go
+++ b/track/video.go
@@ -24,8 +24,9 @@ type Video struct {
 	lostFlag    bool // 是否丢帧
 	codec.SPSInfo
 	ParamaterSets `json:"-" yaml:"-"`
-	SPS           []byte `json:"-" yaml:"-"`
-	PPS           []byte `json:"-" yaml:"-"`
+	SPS           []byte              `json:"-" yaml:"-"`
+	PPS           []byte              `json:"-" yaml:"-"`
+	SEIReader     *DataReader[[]byte] `json:"-" yaml:"-"`
 }

 func (v *Video) Attach() {
@@ -196,7 +197,7 @@ func (vt *Video) insertDCRtp() {
 		packet.SSRC = vt.SSRC
 		packet.Timestamp = uint32(vt.Value.PTS)
 		packet.Marker = false
-		head.InsertBeforeValue(RTPFrame{&packet, nil})
+		head.InsertBeforeValue(RTPFrame{Packet: &packet})
 	}
 }

@@ -247,6 +248,15 @@ func (vt *Video) CompleteAVCC(rv *AVFrame) {

 func (vt *Video) Flush() {
 	rv := &vt.Value
+	if vt.SEIReader != nil {
+		if seiFrame := vt.SEIReader.TryRead(); seiFrame != nil {
+			var au util.BLL
+			content := vt.BytesPool.GetShell(seiFrame.Data)
+			au.Push(content)
+			vt.Value.AUList.UnshiftValue(&au)
+			vt.SEIReader.MoveNext()
+		}
+	}
 	if rv.IFrame {
 		vt.computeGOP()
 		vt.Stream.SetIDR(vt)
--- a/wait-tracks.go
+++ b/wait-tracks.go
@@ -1,6 +1,7 @@
 package engine

 import (
+	"m7s.live/engine/v4/common"
 	. "m7s.live/engine/v4/common"
 	"m7s.live/engine/v4/track"
 	"m7s.live/engine/v4/util"
@@ -68,15 +69,15 @@ func (w *waitTracks) Accept(t Track) bool {
 	suber := w.Promise.Value
 	switch t.(type) {
 	case *track.Audio:
-		if w.audio.Accept(t.GetBase().Name) {
+		if w.audio.Accept(t.GetName()) {
 			suber.OnEvent(t)
 		}
 	case *track.Video:
-		if w.video.Accept(t.GetBase().Name) {
+		if w.video.Accept(t.GetName()) {
 			suber.OnEvent(t)
 		}
-	case track.Custom:
-		w.data.Accept(t.GetBase().Name)
+	case common.Track:
+		w.data.Accept(t.GetName())
 		suber.OnEvent(t)
 	}
 	if w.NeedWait() {