diff --git a/chunk.go b/chunk.go
index 42d719c..7b67af7 100644
--- a/chunk.go
+++ b/chunk.go
@@ -3,8 +3,7 @@ package rtmp
 import (
 	"errors"
 
-	"github.com/Monibuca/engine/v2/pool"
-	"github.com/Monibuca/engine/v2/util"
+	"github.com/Monibuca/utils/v3"
 )
 
 // RTMP协议中基本的数据单元称为消息(Message).
@@ -86,21 +85,21 @@ func (nc *NetConnection) encodeChunk12(head *ChunkHeader, payload []byte, size i
 	if size > RTMP_MAX_CHUNK_SIZE || payload == nil || len(payload) == 0 {
 		return nil, errors.New("chunk error")
 	}
-	b := pool.GetSlice(12)
+	b := utils.GetSlice(12)
 	//chunkBasicHead
 	b[0] = byte(RTMP_CHUNK_HEAD_12 + head.ChunkBasicHeader.ChunkStreamID)
-	util.BigEndian.PutUint24(b[1:], head.ChunkMessageHeader.Timestamp)
-	util.BigEndian.PutUint24(b[4:], head.ChunkMessageHeader.MessageLength)
+	utils.BigEndian.PutUint24(b[1:], head.ChunkMessageHeader.Timestamp)
+	utils.BigEndian.PutUint24(b[4:], head.ChunkMessageHeader.MessageLength)
 	b[7] = head.ChunkMessageHeader.MessageTypeID
-	util.LittleEndian.PutUint32(b[8:], uint32(head.ChunkMessageHeader.MessageStreamID))
+	utils.LittleEndian.PutUint32(b[8:], uint32(head.ChunkMessageHeader.MessageStreamID))
 	nc.Write(b)
-	pool.RecycleSlice(b)
+	utils.RecycleSlice(b)
 	nc.writeSeqNum += 12
 	if head.ChunkMessageHeader.Timestamp == 0xffffff {
-		b := pool.GetSlice(4)
-		util.LittleEndian.PutUint32(b, head.ChunkExtendedTimestamp.ExtendTimestamp)
+		b := utils.GetSlice(4)
+		utils.LittleEndian.PutUint32(b, head.ChunkExtendedTimestamp.ExtendTimestamp)
 		nc.Write(b)
-		pool.RecycleSlice(b)
+		utils.RecycleSlice(b)
 		nc.writeSeqNum += 4
 	}
 	if len(payload) > size {
@@ -118,14 +117,14 @@ func (nc *NetConnection) encodeChunk8(head *ChunkHeader, payload []byte, size in
 	if size > RTMP_MAX_CHUNK_SIZE || payload == nil || len(payload) == 0 {
 		return nil, errors.New("chunk error")
 	}
-	b := pool.GetSlice(8)
+	b := utils.GetSlice(8)
 	//chunkBasicHead
 	b[0] = byte(RTMP_CHUNK_HEAD_8 + head.ChunkBasicHeader.ChunkStreamID)
-	util.BigEndian.PutUint24(b[1:], head.ChunkMessageHeader.Timestamp)
-	util.BigEndian.PutUint24(b[4:], head.ChunkMessageHeader.MessageLength)
+	utils.BigEndian.PutUint24(b[1:], head.ChunkMessageHeader.Timestamp)
+	utils.BigEndian.PutUint24(b[4:], head.ChunkMessageHeader.MessageLength)
 	b[7] = head.ChunkMessageHeader.MessageTypeID
 	nc.Write(b)
-	pool.RecycleSlice(b)
+	utils.RecycleSlice(b)
 	nc.writeSeqNum += 8
 	if len(payload) > size {
 		nc.Write(payload[0:size])
@@ -142,12 +141,12 @@ func (nc *NetConnection) encodeChunk4(head *ChunkHeader, payload []byte, size in
 	if size > RTMP_MAX_CHUNK_SIZE || payload == nil || len(payload) == 0 {
 		return nil, errors.New("chunk error")
 	}
-	b := pool.GetSlice(4)
+	b := utils.GetSlice(4)
 	//chunkBasicHead
 	b[0] = byte(RTMP_CHUNK_HEAD_4 + head.ChunkBasicHeader.ChunkStreamID)
-	util.BigEndian.PutUint24(b[1:], head.ChunkMessageHeader.Timestamp)
+	utils.BigEndian.PutUint24(b[1:], head.ChunkMessageHeader.Timestamp)
 	nc.Write(b)
-	pool.RecycleSlice(b)
+	utils.RecycleSlice(b)
 	nc.writeSeqNum += 4
 	if len(payload) > size {
 		nc.Write(payload[0:size])
diff --git a/go.mod b/go.mod
index 1060e92..7c69019 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,13 @@
-module github.com/Monibuca/plugin-rtmp
+module github.com/Monibuca/plugin-rtmp/v3
 
 go 1.13
 
 require (
-	github.com/Monibuca/engine/v2 v2.0.0
-	github.com/logrusorgru/aurora v0.0.0-20200102142835-e9ef32dff381
+	github.com/Monibuca/engine/v3 v3.0.1
+	github.com/Monibuca/utils/v3 v3.0.0-alpha2
+	github.com/logrusorgru/aurora v2.0.3+incompatible
 )
+
+replace github.com/Monibuca/engine/v3 => ../engine
+
+replace github.com/Monibuca/utils/v3 v3.0.0-alpha2 => ../utils
diff --git a/go.sum b/go.sum
index 8f7043f..32a32df 100644
--- a/go.sum
+++ b/go.sum
@@ -18,8 +18,12 @@ github.com/go-ole/go-ole v1.2.4 h1:nNBDSCOigTSiarFpYE9J/KtEA1IOW4CNeqT9TQDqCxI=
 github.com/go-ole/go-ole v1.2.4/go.mod h1:XCwSNxSkXRo4vlyPy93sltvi/qJq0jqQhjqQNIwKuxM=
 github.com/logrusorgru/aurora v0.0.0-20200102142835-e9ef32dff381 h1:bqDmpDG49ZRnB5PcgP0RXtQvnMSgIF14M7CBd2shtXs=
 github.com/logrusorgru/aurora v0.0.0-20200102142835-e9ef32dff381/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
+github.com/logrusorgru/aurora v2.0.3+incompatible h1:tOpm7WcpBTn4fjmVfgpQq0EfczGlG91VSDkswnjF5A8=
+github.com/logrusorgru/aurora v2.0.3+incompatible/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
 github.com/mattn/go-colorable v0.1.6 h1:6Su7aK7lXmJ/U79bYtBjLNaha4Fs1Rg9plHpcH+vvnE=
 github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ0s8=
+github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@@ -31,6 +35,8 @@ github.com/shirou/gopsutil v2.20.1+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a h1:DcqTD9SDLc+1P/r1EmRBwnVsrOwW+kk2vWf9n+1sGhs=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/main.go b/main.go
index 5f4adb7..83966e4 100644
--- a/main.go
+++ b/main.go
@@ -1,10 +1,10 @@
 package rtmp
 
 import (
-	"log"
-
-	. "github.com/Monibuca/engine/v2"
+	. "github.com/Monibuca/engine/v3"
+	. "github.com/Monibuca/utils/v3"
 	. "github.com/logrusorgru/aurora"
+	"log"
 )
 
 var config = struct {
@@ -15,7 +15,6 @@ var config = struct {
 func init() {
 	InstallPlugin(&PluginConfig{
 		Name:   "RTMP",
-		Type:   PLUGIN_SUBSCRIBER | PLUGIN_PUBLISHER,
 		Config: &config,
 		Run:    run,
 	})
diff --git a/msg.go b/msg.go
index 3ed2991..663bf20 100644
--- a/msg.go
+++ b/msg.go
@@ -5,7 +5,7 @@ import (
 	"log"
 	"sync"
 
-	"github.com/Monibuca/engine/v2/util"
+	"github.com/Monibuca/utils/v3"
 )
 
 const (
@@ -121,11 +121,11 @@ type HaveStreamID interface {
 func GetRtmpMessage(chunk *Chunk) {
 	switch chunk.MessageTypeID {
 	case RTMP_MSG_CHUNK_SIZE, RTMP_MSG_ABORT, RTMP_MSG_ACK, RTMP_MSG_ACK_SIZE:
-		chunk.MsgData = Uint32Message(util.BigEndian.Uint32(chunk.Body))
+		chunk.MsgData = Uint32Message(utils.BigEndian.Uint32(chunk.Body))
 	case RTMP_MSG_USER_CONTROL: // RTMP消息类型ID=4, 用户控制消息.客户端或服务端发送本消息通知对方用户的控制事件.
 		{
 			base := UserControlMessage{
-				EventType: util.BigEndian.Uint16(chunk.Body),
+				EventType: utils.BigEndian.Uint16(chunk.Body),
 				EventData: chunk.Body[2:],
 			}
 			switch base.EventType {
@@ -136,28 +136,28 @@ func GetRtmpMessage(chunk *Chunk) {
 				}
 				if len(base.EventData) >= 4 {
 					//服务端在成功地从客户端接收连接命令之后发送本事件,事件ID为0.事件数据是表示开始起作用的流的ID.
-					m.StreamID = util.BigEndian.Uint32(base.EventData)
+					m.StreamID = utils.BigEndian.Uint32(base.EventData)
 				}
 				chunk.MsgData = m
 			case RTMP_USER_STREAM_EOF, RTMP_USER_STREAM_DRY, RTMP_USER_STREAM_IS_RECORDED: // 服务端向客户端发送本事件通知客户端,数据回放完成.果没有发行额外的命令,就不再发送数据.客户端丢弃从流中接收的消息.4字节的事件数据表示,回放结束的流的ID.
 				m := &StreamIDMessage{
 					UserControlMessage: base,
-					StreamID:           util.BigEndian.Uint32(base.EventData),
+					StreamID:           utils.BigEndian.Uint32(base.EventData),
 				}
 				chunk.MsgData = m
 			case RTMP_USER_SET_BUFFLEN: // 客户端向服务端发送本事件,告知对方自己存储一个流的数据的缓存的长度(毫秒单位).当服务端开始处理一个流得时候发送本事件.事件数据的头四个字节表示流ID,后4个字节表示缓存长度(毫秒单位).
 				m := &SetBufferMessage{
 					StreamIDMessage: StreamIDMessage{
 						UserControlMessage: base,
-						StreamID:           util.BigEndian.Uint32(base.EventData),
+						StreamID:           utils.BigEndian.Uint32(base.EventData),
 					},
-					Millisecond: util.BigEndian.Uint32(base.EventData[4:]),
+					Millisecond: utils.BigEndian.Uint32(base.EventData[4:]),
 				}
 				chunk.MsgData = m
 			case RTMP_USER_PING_REQUEST: // 服务端通过本事件测试客户端是否可达.事件数据是4个字节的事件戳.代表服务调用本命令的本地时间.客户端在接收到kMsgPingRequest之后返回kMsgPingResponse事件
 				m := &PingRequestMessage{
 					UserControlMessage: base,
-					Timestamp:          util.BigEndian.Uint32(base.EventData),
+					Timestamp:          utils.BigEndian.Uint32(base.EventData),
 				}
 				chunk.MsgData = m
 			case RTMP_USER_PING_RESPONSE, RTMP_USER_EMPTY: // 客户端向服务端发送本消息响应ping请求.事件数据是接kMsgPingRequest请求的时间.
@@ -168,7 +168,7 @@ func GetRtmpMessage(chunk *Chunk) {
 		}
 	case RTMP_MSG_BANDWIDTH: // RTMP消息类型ID=6, 置对等端带宽.客户端或服务端发送本消息更新对等端的输出带宽.
 		m := &SetPeerBandwidthMessage{
-			AcknowledgementWindowsize: util.BigEndian.Uint32(chunk.Body),
+			AcknowledgementWindowsize: utils.BigEndian.Uint32(chunk.Body),
 		}
 		if len(chunk.Body) > 4 {
 			m.LimitType = chunk.Body[4]
@@ -351,7 +351,7 @@ type Uint32Message uint32
 
 func (msg Uint32Message) Encode() (b []byte) {
 	b = make([]byte, 4)
-	util.BigEndian.PutUint32(b, uint32(msg))
+	utils.BigEndian.PutUint32(b, uint32(msg))
 	return b
 }
 
@@ -378,7 +378,7 @@ type SetPeerBandwidthMessage struct {
 
 func (msg *SetPeerBandwidthMessage) Encode() (b []byte) {
 	b = make([]byte, 5)
-	util.BigEndian.PutUint32(b, msg.AcknowledgementWindowsize)
+	utils.BigEndian.PutUint32(b, msg.AcknowledgementWindowsize)
 	b[4] = msg.LimitType
 	return
 }
@@ -869,8 +869,8 @@ type StreamIDMessage struct {
 
 func (msg *StreamIDMessage) Encode() (b []byte) {
 	b = make([]byte, 6)
-	util.BigEndian.PutUint16(b, msg.EventType)
-	util.BigEndian.PutUint32(b[2:], msg.StreamID)
+	utils.BigEndian.PutUint16(b, msg.EventType)
+	utils.BigEndian.PutUint32(b[2:], msg.StreamID)
 	msg.EventData = b[2:]
 	return
 }
@@ -887,9 +887,9 @@ type SetBufferMessage struct {
 
 func (msg *SetBufferMessage) Encode() []byte {
 	b := make([]byte, 10)
-	util.BigEndian.PutUint16(b, msg.EventType)
-	util.BigEndian.PutUint32(b[2:], msg.StreamID)
-	util.BigEndian.PutUint32(b[6:], msg.Millisecond)
+	utils.BigEndian.PutUint16(b, msg.EventType)
+	utils.BigEndian.PutUint32(b[2:], msg.StreamID)
+	utils.BigEndian.PutUint32(b[6:], msg.Millisecond)
 	msg.EventData = b[2:]
 	return b
 }
@@ -905,15 +905,20 @@ type PingRequestMessage struct {
 
 func (msg *PingRequestMessage) Encode() (b []byte) {
 	b = make([]byte, 6)
-	util.BigEndian.PutUint16(b, msg.EventType)
-	util.BigEndian.PutUint32(b[2:], msg.Timestamp)
+	utils.BigEndian.PutUint16(b, msg.EventType)
+	utils.BigEndian.PutUint32(b[2:], msg.Timestamp)
 	msg.EventData = b[2:]
 	return
 }
 
 func (msg *UserControlMessage) Encode() []byte {
 	b := make([]byte, 2)
-	util.BigEndian.PutUint16(b, msg.EventType)
+	utils.BigEndian.PutUint16(b, msg.EventType)
 	msg.EventData = b[2:]
 	return b
 }
+
+type AVPack struct {
+	Timestamp uint32
+	Payload   []byte
+}
diff --git a/netConnection.go b/netConnection.go
index 24ce158..0fd2376 100644
--- a/netConnection.go
+++ b/netConnection.go
@@ -3,13 +3,10 @@ package rtmp
 import (
 	"bufio"
 	"errors"
+	"github.com/Monibuca/engine/v3"
+	"github.com/Monibuca/utils/v3"
 	"io"
 	"log"
-
-	"github.com/Monibuca/engine/v2"
-	"github.com/Monibuca/engine/v2/avformat"
-	"github.com/Monibuca/engine/v2/pool"
-	"github.com/Monibuca/engine/v2/util"
 )
 
 const (
@@ -86,7 +83,7 @@ type NetConnection struct {
 	writeChunkSize     int
 	readChunkSize      int
 	incompleteRtmpBody map[uint32][]byte       // 完整的RtmpBody,在网络上是被分成一块一块的,需要将其组装起来
-	nextStreamID       func(uint32) uint32     // 下一个流ID
+	nextStreamID       func() uint32           // 下一个流ID
 	streamID           uint32                  // 流ID
 	rtmpHeader         map[uint32]*ChunkHeader // RtmpHeader
 	objectEncoding     float64
@@ -331,33 +328,33 @@ func (conn *NetConnection) SendMessage(message string, args interface{}) error {
 		m.CommandName = "releaseStream" + data["level"].(string)
 		return conn.writeMessage(RTMP_MSG_AMF0_COMMAND, m)
 	case SEND_FULL_AUDIO_MESSAGE:
-		audio, ok := args.(*avformat.SendPacket)
+		audio, ok := args.(*AVPack)
 		if !ok {
 			errors.New(message + ", The parameter is AVPacket")
 		}
 
-		return conn.sendAVMessage(audio, true, true)
+		return conn.sendAVMessage(audio.Timestamp, audio.Payload, true, true)
 	case SEND_AUDIO_MESSAGE:
-		audio, ok := args.(*avformat.SendPacket)
+		audio, ok := args.(*AVPack)
 		if !ok {
 			errors.New(message + ", The parameter is AVPacket")
 		}
 
-		return conn.sendAVMessage(audio, true, false)
+		return conn.sendAVMessage(audio.Timestamp, audio.Payload, true, false)
 	case SEND_FULL_VDIEO_MESSAGE:
-		video, ok := args.(*avformat.SendPacket)
+		video, ok := args.(*AVPack)
 		if !ok {
 			errors.New(message + ", The parameter is AVPacket")
 		}
 
-		return conn.sendAVMessage(video, false, true)
+		return conn.sendAVMessage(video.Timestamp, video.Payload, false, true)
 	case SEND_VIDEO_MESSAGE:
-		video, ok := args.(*avformat.SendPacket)
+		video, ok := args.(*AVPack)
 		if !ok {
 			errors.New(message + ", The parameter is AVPacket")
 		}
 
-		return conn.sendAVMessage(video, false, false)
+		return conn.sendAVMessage(video.Timestamp, video.Payload, false, false)
 	}
 
 	return errors.New("send message no exist")
@@ -366,7 +363,7 @@ func (conn *NetConnection) SendMessage(message string, args interface{}) error {
 // 当发送音视频数据的时候,当块类型为12的时候,Chunk Message Header有一个字段TimeStamp,指明一个时间
 // 当块类型为4,8的时候,Chunk Message Header有一个字段TimeStamp Delta,记录与上一个Chunk的时间差值
 // 当块类型为0的时候,Chunk Message Header没有时间字段,与上一个Chunk时间值相同
-func (conn *NetConnection) sendAVMessage(av *avformat.SendPacket, isAudio bool, isFirst bool) error {
+func (conn *NetConnection) sendAVMessage(ts uint32, payload []byte, isAudio bool, isFirst bool) error {
 	if conn.writeSeqNum > conn.bandwidth {
 		conn.totalWrite += conn.writeSeqNum
 		conn.writeSeqNum = 0
@@ -378,19 +375,18 @@ func (conn *NetConnection) sendAVMessage(av *avformat.SendPacket, isAudio bool,
 	var need []byte
 	var head *ChunkHeader
 	if isAudio {
-		head = newRtmpHeader(RTMP_CSID_AUDIO, av.Timestamp, uint32(len(av.Payload)), RTMP_MSG_AUDIO, conn.streamID, 0)
+		head = newRtmpHeader(RTMP_CSID_AUDIO, ts, uint32(len(payload)), RTMP_MSG_AUDIO, conn.streamID, 0)
 	} else {
-		head = newRtmpHeader(RTMP_CSID_VIDEO, av.Timestamp, uint32(len(av.Payload)), RTMP_MSG_VIDEO, conn.streamID, 0)
+		head = newRtmpHeader(RTMP_CSID_VIDEO, ts, uint32(len(payload)), RTMP_MSG_VIDEO, conn.streamID, 0)
 	}
 
 	// 第一次是发送关键帧,需要完整的消息头(Chunk Basic Header(1) + Chunk Message Header(11) + Extended Timestamp(4)(可能会要包括))
 	// 后面开始,就是直接发送音视频数据,那么直接发送,不需要完整的块(Chunk Basic Header(1) + Chunk Message Header(7))
 	// 当Chunk Type为0时(即Chunk12),
 	if isFirst {
-		need, err = conn.encodeChunk12(head, av.Payload, conn.writeChunkSize)
+		need, err = conn.encodeChunk12(head, payload, conn.writeChunkSize)
 	} else {
-		need, err = conn.encodeChunk8(head, av.Payload, conn.writeChunkSize)
-
+		need, err = conn.encodeChunk8(head, payload, conn.writeChunkSize)
 	}
 	if err != nil {
 		return err
@@ -518,20 +514,20 @@ func (conn *NetConnection) readChunkType(h *ChunkHeader, chunkType byte) (head *
 	case 0:
 		{
 			// Timestamp 3 bytes
-			b := pool.GetSlice(3)
+			b := utils.GetSlice(3)
 			if _, err := io.ReadFull(conn, b); err != nil {
 				return nil, err
 			}
 			conn.readSeqNum += 3
-			h.Timestamp = util.BigEndian.Uint24(b) //type = 0的时间戳为绝对时间,其他的都为相对时间
+			h.Timestamp = utils.BigEndian.Uint24(b) //type = 0的时间戳为绝对时间,其他的都为相对时间
 
 			// Message Length 3 bytes
 			if _, err = io.ReadFull(conn, b); err != nil { // 读取Message Length,这里的长度指的是一条信令或者一帧视频数据或音频数据的长度,而不是Chunk data的长度.
 				return nil, err
 			}
 			conn.readSeqNum += 3
-			h.MessageLength = util.BigEndian.Uint24(b)
-			pool.RecycleSlice(b)
+			h.MessageLength = utils.BigEndian.Uint24(b)
+			utils.RecycleSlice(b)
 			// Message Type ID 1 bytes
 			v, err := conn.ReadByte() // 读取Message Type ID
 			if err != nil {
@@ -541,12 +537,12 @@ func (conn *NetConnection) readChunkType(h *ChunkHeader, chunkType byte) (head *
 			h.MessageTypeID = v
 
 			// Message Stream ID 4bytes
-			bb := pool.GetSlice(4)
+			bb := utils.GetSlice(4)
 			if _, err = io.ReadFull(conn, bb); err != nil { // 读取Message Stream ID
 				return nil, err
 			}
 			conn.readSeqNum += 4
-			h.MessageStreamID = util.LittleEndian.Uint32(bb)
+			h.MessageStreamID = utils.LittleEndian.Uint32(bb)
 
 			// ExtendTimestamp 4 bytes
 			if h.Timestamp == 0xffffff { // 对于type 0的chunk,绝对时间戳在这里表示,如果时间戳值大于等于0xffffff(16777215),该值必须是0xffffff,且时间戳扩展字段必须发送,其他情况没有要求
@@ -554,28 +550,28 @@ func (conn *NetConnection) readChunkType(h *ChunkHeader, chunkType byte) (head *
 					return nil, err
 				}
 				conn.readSeqNum += 4
-				h.ExtendTimestamp = util.BigEndian.Uint32(bb)
+				h.ExtendTimestamp = utils.BigEndian.Uint32(bb)
 			}
-			pool.RecycleSlice(bb)
+			utils.RecycleSlice(bb)
 		}
 	case 1:
 		{
 			// Timestamp 3 bytes
-			b := pool.GetSlice(3)
+			b := utils.GetSlice(3)
 			if _, err = io.ReadFull(conn, b); err != nil {
 				return nil, err
 			}
 			conn.readSeqNum += 3
 			h.ChunkType = chunkType
-			h.Timestamp = util.BigEndian.Uint24(b)
+			h.Timestamp = utils.BigEndian.Uint24(b)
 
 			// Message Length 3 bytes
 			if _, err = io.ReadFull(conn, b); err != nil {
 				return nil, err
 			}
 			conn.readSeqNum += 3
-			h.MessageLength = util.BigEndian.Uint24(b)
-			pool.RecycleSlice(b)
+			h.MessageLength = utils.BigEndian.Uint24(b)
+			utils.RecycleSlice(b)
 			// Message Type ID 1 bytes
 			v, err := conn.ReadByte()
 			if err != nil {
@@ -586,35 +582,35 @@ func (conn *NetConnection) readChunkType(h *ChunkHeader, chunkType byte) (head *
 
 			// ExtendTimestamp 4 bytes
 			if h.Timestamp == 0xffffff {
-				bb := pool.GetSlice(4)
+				bb := utils.GetSlice(4)
 				if _, err := io.ReadFull(conn, bb); err != nil {
 					return nil, err
 				}
 				conn.readSeqNum += 4
-				h.ExtendTimestamp = util.BigEndian.Uint32(bb)
-				pool.RecycleSlice(bb)
+				h.ExtendTimestamp = utils.BigEndian.Uint32(bb)
+				utils.RecycleSlice(bb)
 			}
 		}
 	case 2:
 		{
 			// Timestamp 3 bytes
-			b := pool.GetSlice(3)
+			b := utils.GetSlice(3)
 			if _, err = io.ReadFull(conn, b); err != nil {
 				return nil, err
 			}
 			conn.readSeqNum += 3
 			h.ChunkType = chunkType
-			h.Timestamp = util.BigEndian.Uint24(b)
-			pool.RecycleSlice(b)
+			h.Timestamp = utils.BigEndian.Uint24(b)
+			utils.RecycleSlice(b)
 			// ExtendTimestamp 4 bytes
 			if h.Timestamp == 0xffffff {
-				bb := pool.GetSlice(4)
+				bb := utils.GetSlice(4)
 				if _, err := io.ReadFull(conn, bb); err != nil {
 					return nil, err
 				}
 				conn.readSeqNum += 4
-				h.ExtendTimestamp = util.BigEndian.Uint32(bb)
-				pool.RecycleSlice(bb)
+				h.ExtendTimestamp = utils.BigEndian.Uint32(bb)
+				utils.RecycleSlice(bb)
 			}
 		}
 	case 3:
diff --git a/netStream.go b/netStream.go
index 055ef62..2d0231f 100644
--- a/netStream.go
+++ b/netStream.go
@@ -3,19 +3,17 @@ package rtmp
 import (
 	"bufio"
 	"fmt"
+	"github.com/Monibuca/engine/v3"
+	"github.com/Monibuca/utils/v3"
+	"github.com/Monibuca/utils/v3/codec"
 	"log"
 	"net"
 	"strings"
+	"sync"
+	"sync/atomic"
 	"time"
-
-	. "github.com/Monibuca/engine/v2"
-	"github.com/Monibuca/engine/v2/avformat"
 )
 
-type RTMP struct {
-	Publisher
-}
-
 func ListenRtmp(addr string) error {
 	defer log.Println("rtmp server start!")
 	// defer fmt.Println("server start!")
@@ -53,37 +51,104 @@ func ListenRtmp(addr string) error {
 var gstreamid = uint32(64)
 
 func processRtmp(conn net.Conn) {
-	var stream *Stream
-	streams := make(map[uint32]*Subscriber)
+	var stream *engine.Stream
+	streams := make(map[uint32]*engine.Subscriber)
 	defer func() {
 		conn.Close()
 		if stream != nil {
-			stream.Cancel()
+			stream.Close()
 		}
 		for _, s := range streams {
 			s.Close()
 		}
 	}()
-	var totalDuration uint32
-	nc := &NetConnection{
+	nc := NetConnection{
 		ReadWriter:         bufio.NewReadWriter(bufio.NewReader(conn), bufio.NewWriter(conn)),
 		writeChunkSize:     RTMP_DEFAULT_CHUNK_SIZE,
 		readChunkSize:      RTMP_DEFAULT_CHUNK_SIZE,
 		rtmpHeader:         make(map[uint32]*ChunkHeader),
 		incompleteRtmpBody: make(map[uint32][]byte),
 		bandwidth:          RTMP_MAX_CHUNK_SIZE << 3,
-		nextStreamID: func(u uint32) uint32 {
-			gstreamid++
-			return gstreamid
+		nextStreamID: func() uint32 {
+			return atomic.AddUint32(&gstreamid, 1)
 		},
 	}
 	/* Handshake */
-	if MayBeError(Handshake(nc.ReadWriter)) {
+	if utils.MayBeError(Handshake(nc.ReadWriter)) {
 		return
 	}
-	if MayBeError(nc.OnConnect()) {
+	if utils.MayBeError(nc.OnConnect()) {
 		return
 	}
+	var rec_audio, rec_video func(*Chunk)
+	rec_audio = func(msg *Chunk) {
+		var ts_audio uint32
+		va := stream.AudioTracks[0]
+		tmp := msg.Body[0]
+		if va.SoundFormat = tmp >> 4; va.SoundFormat == 10 {
+			if msg.Body[1] != 0 {
+				return
+			}
+			va.ASC = msg.Body[2:]
+			config1, config2 := msg.Body[2], msg.Body[3]
+			//audioObjectType = (config1 & 0xF8) >> 3
+			// 1 AAC MAIN 	ISO/IEC 14496-3 subpart 4
+			// 2 AAC LC 	ISO/IEC 14496-3 subpart 4
+			// 3 AAC SSR 	ISO/IEC 14496-3 subpart 4
+			// 4 AAC LTP 	ISO/IEC 14496-3 subpart 4
+			va.SoundRate = codec.SamplingFrequencies[((config1&0x7)<<1)|(config2>>7)]
+			va.SoundType = (config2 >> 3) & 0x0F //声道
+			//frameLengthFlag = (config2 >> 2) & 0x01
+			//dependsOnCoreCoder = (config2 >> 1) & 0x01
+			//extensionFlag = config2 & 0x01
+		} else {
+			va.SoundRate = codec.SoundRate[(tmp&0x0c)>>2] // 采样率 0 = 5.5 kHz or 1 = 11 kHz or 2 = 22 kHz or 3 = 44 kHz
+			va.SoundSize = (tmp & 0x02) >> 1              // 采样精度 0 = 8-bit samples or 1 = 16-bit samples
+			va.SoundType = tmp & 0x01                     // 0 单声道，1立体声
+		}
+		va.RtmpTag = msg.Body
+		rec_audio = func(msg *Chunk) {
+			if msg.Timestamp == 0xffffff {
+				ts_audio += msg.ExtendTimestamp
+			} else {
+				ts_audio += msg.Timestamp // 绝对时间戳
+			}
+			stream.PushAudio(ts_audio, msg.Body[2:])
+		}
+	}
+	rec_video = func(msg *Chunk) {
+		// 等待AVC序列帧
+		if msg.Body[1] != 0 {
+			return
+		}
+		vt := stream.VideoTracks[0]
+		var ts_video uint32
+		var info codec.AVCDecoderConfigurationRecord
+		//0:codec,1:IsAVCSequence,2~4:compositionTime
+		if _, err := info.Unmarshal(msg.Body[5:]); err == nil {
+			vt.SPSInfo, err = codec.ParseSPS(info.SequenceParameterSetNALUnit)
+			vt.SPS = info.SequenceParameterSetNALUnit
+			vt.PPS = info.PictureParameterSetNALUnit
+		}
+		vt.RtmpTag = msg.Body
+		nalulenSize := int(info.LengthSizeMinusOne&3 + 1)
+		rec_video = func(msg *Chunk) {
+			nalus := msg.Body[5:]
+			if msg.Timestamp == 0xffffff {
+				ts_video += msg.ExtendTimestamp
+			} else {
+				ts_video += msg.Timestamp // 绝对时间戳
+			}
+			for len(nalus) > nalulenSize {
+				nalulen := 0
+				for i := 0; i < nalulenSize; i++ {
+					nalulen += int(nalus[i]) << (8 * (nalulenSize - i - 1))
+				}
+				vt.Push(ts_video, nalus[nalulenSize:nalulen+nalulenSize])
+				nalus = nalus[nalulen+nalulenSize:]
+			}
+		}
+	}
 	for {
 		if msg, err := nc.RecvMessage(); err == nil {
 			if msg.MessageLength <= 0 {
@@ -97,16 +162,16 @@ func processRtmp(conn net.Conn) {
 				cmd := msg.MsgData.(Commander).GetCommand()
 				switch cmd.CommandName {
 				case "createStream":
-					nc.streamID = nc.nextStreamID(msg.ChunkStreamID)
+					nc.streamID = nc.nextStreamID()
 					log.Println("createStream:", nc.streamID)
 					err = nc.SendMessage(SEND_CREATE_STREAM_RESPONSE_MESSAGE, cmd.TransactionId)
-					if MayBeError(err) {
+					if utils.MayBeError(err) {
 						return
 					}
 				case "publish":
 					pm := msg.MsgData.(*PublishMessage)
 					streamPath := nc.appName + "/" + strings.Split(pm.PublishingName, "?")[0]
-					if pub := new(RTMP); pub.Publish(streamPath) {
+					if pub := new(engine.Publisher); pub.Publish(streamPath) {
 						pub.Type = "RTMP"
 						stream = pub.Stream
 						err = nc.SendMessage(SEND_STREAM_BEGIN_MESSAGE, nil)
@@ -118,46 +183,7 @@ func processRtmp(conn net.Conn) {
 					pm := msg.MsgData.(*PlayMessage)
 					streamPath := nc.appName + "/" + strings.Split(pm.StreamName, "?")[0]
 					nc.writeChunkSize = config.ChunkSize
-					var lastAudioTime uint32 = 0
-					var lastVideoTime uint32 = 0
-					// followAVCSequence := false
-					stream := &Subscriber{OnData: func(packet *avformat.SendPacket) (err error) {
-						switch true {
-						// case packet.IsADTS:
-						// 	tagPacket := avformat.NewAVPacket(RTMP_MSG_AUDIO)
-						// 	tagPacket.Payload = avformat.ADTSToAudioSpecificConfig(packet.Payload)
-						// 	err = nc.SendMessage(SEND_FULL_AUDIO_MESSAGE, tagPacket)
-						// 	ADTSLength := 7 + (int(packet.Payload[1]&1) << 1)
-						// 	if len(packet.Payload) > ADTSLength {
-						// 		contentPacket := avformat.NewAVPacket(RTMP_MSG_AUDIO)
-						// 		contentPacket.Timestamp = packet.Timestamp
-						// 		contentPacket.Payload = make([]byte, len(packet.Payload)-ADTSLength+2)
-						// 		contentPacket.Payload[0] = 0xAF
-						// 		contentPacket.Payload[1] = 0x01 //raw AAC
-						// 		copy(contentPacket.Payload[2:], packet.Payload[ADTSLength:])
-						// 		err = nc.SendMessage(SEND_AUDIO_MESSAGE, contentPacket)
-						// 	}
-						case packet.Type == RTMP_MSG_VIDEO:
-							if packet.IsSequence {
-								err = nc.SendMessage(SEND_FULL_VDIEO_MESSAGE, packet)
-							} else {
-								t := packet.Timestamp - lastVideoTime
-								lastVideoTime = packet.Timestamp
-								packet.Timestamp = t
-								err = nc.SendMessage(SEND_VIDEO_MESSAGE, packet)
-							}
-						case packet.Type == RTMP_MSG_AUDIO:
-							if packet.IsSequence {
-								err = nc.SendMessage(SEND_FULL_AUDIO_MESSAGE, packet)
-							} else {
-								t := packet.Timestamp - lastAudioTime
-								lastAudioTime = packet.Timestamp
-								packet.Timestamp = t
-								err = nc.SendMessage(SEND_AUDIO_MESSAGE, packet)
-							}
-						}
-						return
-					}}
+					stream := engine.Subscriber{}
 					stream.Type = "RTMP"
 					stream.ID = fmt.Sprintf("%s|%d", conn.RemoteAddr().String(), nc.streamID)
 					err = nc.SendMessage(SEND_CHUNK_SIZE_MESSAGE, uint32(nc.writeChunkSize))
@@ -166,22 +192,71 @@ func processRtmp(conn net.Conn) {
 					err = nc.SendMessage(SEND_PLAY_RESPONSE_MESSAGE, newPlayResponseMessageData(nc.streamID, NetStream_Play_Reset, Level_Status))
 					err = nc.SendMessage(SEND_PLAY_RESPONSE_MESSAGE, newPlayResponseMessageData(nc.streamID, NetStream_Play_Start, Level_Status))
 					if err == nil {
-						streams[nc.streamID] = stream
-						go stream.Subscribe(streamPath)
+						streams[nc.streamID] = &stream
+						if err = stream.Subscribe(streamPath); err == nil {
+							vt, at := stream.VideoTracks[0], stream.AudioTracks[0]
+							err = nc.SendMessage(SEND_FULL_VDIEO_MESSAGE, &AVPack{Payload: vt.RtmpTag})
+							if at.SoundFormat == 10 {
+								err = nc.SendMessage(SEND_FULL_AUDIO_MESSAGE, &AVPack{Payload: at.RtmpTag})
+							}
+							var lastAudioTime, lastVideoTime uint32
+							var lock sync.Mutex
+							go vt.Play(stream.Context, func(pack engine.VideoPack) {
+								if lastVideoTime == 0 {
+									lastVideoTime = pack.Timestamp
+								}
+								t := pack.Timestamp - lastVideoTime
+								lastVideoTime = pack.Timestamp
+								payload := utils.GetSlice(9 + len(pack.Payload))
+								defer utils.RecycleSlice(payload)
+								if pack.NalType == codec.NALU_IDR_Picture {
+									payload[0] = 0x17
+								} else {
+									payload[0] = 0x27
+								}
+								payload[1] = 0x01
+								utils.BigEndian.PutUint32(payload[5:], uint32(len(pack.Payload)))
+								copy(payload[9:], pack.Payload)
+								lock.Lock()
+								defer lock.Unlock()
+								err = nc.SendMessage(SEND_VIDEO_MESSAGE, &AVPack{Timestamp: t, Payload: payload})
+							})
+							go at.Play(stream.Context, func(pack engine.AudioPack) {
+								if lastAudioTime == 0 {
+									lastAudioTime = pack.Timestamp
+								}
+								t := pack.Timestamp - lastAudioTime
+								lastAudioTime = pack.Timestamp
+								l := len(pack.Payload) + 1
+								if at.SoundFormat == 10 {
+									l++
+								}
+								payload := utils.GetSlice(l)
+								defer utils.RecycleSlice(payload)
+								payload[0] = at.RtmpTag[0]
+								if at.SoundFormat == 10 {
+									payload[1] = 1
+								}
+								copy(payload[2:], pack.Payload)
+								lock.Lock()
+								defer lock.Unlock()
+								err = nc.SendMessage(SEND_AUDIO_MESSAGE, &AVPack{Timestamp: t, Payload: payload})
+							})
+						}
 					} else {
 						return
 					}
 				case "closeStream":
 					cm := msg.MsgData.(*CURDStreamMessage)
 					if stream, ok := streams[cm.StreamId]; ok {
-						stream.Cancel()
+						stream.Close()
 						delete(streams, cm.StreamId)
 					}
 				case "releaseStream":
 					cm := msg.MsgData.(*ReleaseStreamMessage)
 					streamPath := nc.appName + "/" + strings.Split(cm.StreamName, "?")[0]
 					amfobj := newAMFObjects()
-					if s := FindStream(streamPath); s != nil {
+					if s := engine.FindStream(streamPath); s != nil {
 						amfobj["level"] = "_result"
 						s.Close()
 					} else {
@@ -191,21 +266,9 @@ func processRtmp(conn net.Conn) {
 					err = nc.SendMessage(SEND_UNPUBLISH_RESPONSE_MESSAGE, amfobj)
 				}
 			case RTMP_MSG_AUDIO:
-				// pkt := avformat.NewAVPacket(RTMP_MSG_AUDIO)
-				if msg.Timestamp == 0xffffff {
-					totalDuration += msg.ExtendTimestamp
-				} else {
-					totalDuration += msg.Timestamp // 绝对时间戳
-				}
-				stream.PushAudio(totalDuration, msg.Body)
+				rec_audio(msg)
 			case RTMP_MSG_VIDEO:
-				// pkt := avformat.NewAVPacket(RTMP_MSG_VIDEO)
-				if msg.Timestamp == 0xffffff {
-					totalDuration += msg.ExtendTimestamp
-				} else {
-					totalDuration += msg.Timestamp // 绝对时间戳
-				}
-				stream.PushVideo(totalDuration, msg.Body)
+				rec_video(msg)
 			}
 			msg.Recycle()
 		} else {