diff --git a/api.go b/api.go
index 6af643f..fbc051a 100644
--- a/api.go
+++ b/api.go
@@ -1,25 +1,30 @@
 package main
 
 import (
+	"context"
 	"github.com/gorilla/mux"
 	"github.com/yangjiechina/avformat/utils"
-	"github.com/yangjiechina/live-server/hls"
+	"github.com/yangjiechina/live-server/flv"
 	"github.com/yangjiechina/live-server/stream"
+	"net"
 	"net/http"
+	"strings"
 	"time"
 )
 
 func startApiServer(addr string) {
 	r := mux.NewRouter()
-	r.HandleFunc("/live/hls/{id}", onHLS)
+	r.HandleFunc("/live/flv/{source}", onFLV)
+	r.HandleFunc("/live/hls/{source}", onHLS)
+
 	http.Handle("/", r)
 
 	srv := &http.Server{
 		Handler: r,
 		Addr:    addr,
 		// Good practice: enforce timeouts for servers you create!
-		WriteTimeout: 15 * time.Second,
-		ReadTimeout:  15 * time.Second,
+		WriteTimeout: 30 * time.Second,
+		ReadTimeout:  30 * time.Second,
 	}
 
 	err := srv.ListenAndServe()
@@ -29,15 +34,21 @@ func startApiServer(addr string) {
 	}
 }
 
-func onHLS(w http.ResponseWriter, r *http.Request) {
+func onFLV(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
-	sourceId := vars["id"]
+	source := vars["source"]
+
+	w.Header().Set("Content-Type", "video/x-flv")
+	w.Header().Set("Connection", "Keep-Alive")
+	w.Header().Set("Transfer-Encoding", "chunked")
 
 	hj, ok := w.(http.Hijacker)
 	if !ok {
 		http.Error(w, "webserver doesn't support hijacking", http.StatusInternalServerError)
 		return
 	}
+	context_ := r.Context()
+	w.WriteHeader(http.StatusOK)
 
 	conn, _, err := hj.Hijack()
 	if err != nil {
@@ -45,19 +56,43 @@ func onHLS(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	var sourceId string
+	if index := strings.LastIndex(source, "."); index > -1 {
+		sourceId = source[:index]
+	}
+
+	tcpAddr, _ := net.ResolveTCPAddr("tcp", r.RemoteAddr)
+	sinkId := stream.GenerateSinkId(tcpAddr)
+	sink := flv.NewFLVSink(sinkId, sourceId, conn)
+
+	go func(ctx context.Context) {
+		sink.(*stream.SinkImpl).Play(sink, func() {
+			//sink.(*stream.SinkImpl).PlayDone(sink, nil, nil)
+		}, func(state utils.HookState) {
+			conn.Close()
+		})
+	}(context_)
+}
+
+func onHLS(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	source := vars["source"]
+
 	w.Header().Set("Content-Type", "application/vnd.apple.mpegurl")
-	sinkId := stream.GenerateSinkId(conn)
 
-	/*	requestTS := strings.HasSuffix(r.URL.Path, ".ts")
-		if requestTS {
-			stream.sink
-		}*/
-
-	sink := hls.NewSink(sinkId, sourceId, w)
-	sink.(*stream.SinkImpl).Play(sink, func() {
-
-	}, func(state utils.HookState) {
-		w.WriteHeader(http.StatusForbidden)
-	})
+	//删除末尾的.ts/.m3u8, 请确保id中不存在.
+	//var sourceId string
+	//if index := strings.LastIndex(source, "."); index > -1 {
+	//	sourceId = source[:index]
+	//}
+	//
+	//tcpAddr, _ := net.ResolveTCPAddr("tcp", r.RemoteAddr)
+	//sinkId := stream.GenerateSinkId(tcpAddr)
+	if strings.HasSuffix(source, ".m3u8") {
+		//查询是否存在hls流, 不存在-等生成后再响应m3u8文件. 存在-直接响应m3u8文件
+		http.ServeFile(w, r, "../tmp/"+source)
+	} else if strings.HasSuffix(source, ".ts") {
+		http.ServeFile(w, r, "../tmp/"+source)
+	}
 
 }
diff --git a/flv/flv_sink.go b/flv/flv_sink.go
new file mode 100644
index 0000000..ed3eb51
--- /dev/null
+++ b/flv/flv_sink.go
@@ -0,0 +1,10 @@
+package flv
+
+import (
+	"github.com/yangjiechina/live-server/stream"
+	"net"
+)
+
+func NewFLVSink(id stream.SinkId, sourceId string, conn net.Conn) stream.ISink {
+	return &stream.SinkImpl{Id_: id, SourceId_: sourceId, Protocol_: stream.ProtocolFlv, Conn: conn}
+}
diff --git a/flv/http_flv.go b/flv/http_flv.go
new file mode 100644
index 0000000..11aa187
--- /dev/null
+++ b/flv/http_flv.go
@@ -0,0 +1,191 @@
+package flv
+
+import (
+	"encoding/binary"
+	"fmt"
+	"github.com/yangjiechina/avformat/libflv"
+	"github.com/yangjiechina/avformat/utils"
+	"github.com/yangjiechina/live-server/stream"
+)
+
+const (
+	// HttpFlvBlockLengthSize 响应flv数据时，需要添加flv块长度, 缓存时预留该大小字节
+	HttpFlvBlockLengthSize = 20
+)
+
+var separator []byte
+
+func init() {
+	separator = make([]byte, 2)
+	separator[0] = 0x0D
+	separator[1] = 0x0A
+}
+
+type httpTransStream struct {
+	stream.CacheTransStream
+	muxer      libflv.Muxer
+	header     []byte
+	headerSize int
+}
+
+func NewHttpTransStream() stream.ITransStream {
+	return &httpTransStream{
+		muxer:      libflv.NewMuxer(),
+		header:     make([]byte, 1024),
+		headerSize: HttpFlvBlockLengthSize + 9,
+	}
+}
+
+func (t *httpTransStream) Input(packet utils.AVPacket) error {
+	var flvSize int
+	var data []byte
+	var videoKey bool
+
+	if utils.AVMediaTypeAudio == packet.MediaType() {
+		flvSize = 17 + len(packet.Data())
+		data = packet.Data()
+	} else if utils.AVMediaTypeVideo == packet.MediaType() {
+		flvSize = 20 + len(packet.AVCCPacketData())
+		data = packet.AVCCPacketData()
+		videoKey = packet.KeyFrame()
+	}
+
+	if videoKey {
+		head, _ := t.StreamBuffers[0].Data()
+		if len(head) > t.SegmentOffset {
+			t.StreamBuffers[0].Mark()
+			t.StreamBuffers[0].Allocate(2)
+			t.StreamBuffers[0].Fetch()
+
+			head, _ = t.StreamBuffers[0].Data()
+			t.writeSeparator(head[t.SegmentOffset:])
+			skip := t.computeSikCount(head[t.SegmentOffset:])
+			t.SendPacketWithOffset(head, t.SegmentOffset+skip)
+		}
+
+		t.SwapStreamBuffer()
+	}
+
+	var n int
+	var separatorSize int
+	full := t.Full(packet.Pts())
+	if head, _ := t.StreamBuffers[0].Data(); t.SegmentOffset == len(head) {
+		separatorSize = HttpFlvBlockLengthSize
+		//10字节描述flv包长, 前2个字节描述无效字节长度
+		n = HttpFlvBlockLengthSize
+	}
+	if full {
+		separatorSize = 2
+	}
+
+	t.StreamBuffers[0].Mark()
+	allocate := t.StreamBuffers[0].Allocate(separatorSize + flvSize)
+	n += t.muxer.Input(allocate[n:], packet.MediaType(), len(data), packet.Dts(), packet.Pts(), packet.KeyFrame(), false)
+	copy(allocate[n:], data)
+	_ = t.StreamBuffers[0].Fetch()
+
+	if !full {
+		return nil
+	}
+
+	head, _ := t.StreamBuffers[0].Data()
+	//添加长度和换行符
+	//每一个合并写切片开始和预留长度所需的字节数
+	//合并写切片末尾加上换行符
+	//长度是16进制字符串
+	t.writeSeparator(head[t.SegmentOffset:])
+
+	skip := t.computeSikCount(head[t.SegmentOffset:])
+	t.SendPacketWithOffset(head, t.SegmentOffset+skip)
+	return nil
+}
+
+func (t *httpTransStream) AddTrack(stream utils.AVStream) error {
+	if err := t.TransStreamImpl.AddTrack(stream); err != nil {
+		return err
+	}
+
+	var data []byte
+	if utils.AVMediaTypeAudio == stream.Type() {
+		t.muxer.AddAudioTrack(stream.CodecId(), 0, 0, 0)
+		data = stream.Extra()
+	} else if utils.AVMediaTypeVideo == stream.Type() {
+		t.muxer.AddVideoTrack(stream.CodecId())
+		data, _ = stream.M4VCExtraData()
+	}
+
+	t.headerSize += t.muxer.Input(t.header[t.headerSize:], stream.Type(), len(data), 0, 0, false, true)
+	copy(t.header[t.headerSize:], data)
+	t.headerSize += len(data)
+	return nil
+}
+
+func (t *httpTransStream) sendBuffer(sink stream.ISink, data []byte) error {
+	return sink.Input(data[t.computeSikCount(data):])
+}
+
+func (t *httpTransStream) computeSikCount(data []byte) int {
+	return int(6 + binary.BigEndian.Uint16(data[4:]))
+}
+
+func (t *httpTransStream) AddSink(sink stream.ISink) error {
+	utils.Assert(t.headerSize > 0)
+
+	t.TransStreamImpl.AddSink(sink)
+	//发送sequence header
+	t.sendBuffer(sink, t.header[:t.headerSize])
+
+	send := func(sink stream.ISink, data []byte) {
+		var index int
+		for ; index < len(data); index += 4 {
+			size := binary.BigEndian.Uint32(data[index:])
+			t.sendBuffer(sink, data[index:index+4+int(size)])
+			index += int(size)
+		}
+	}
+
+	//发送当前内存池已有的合并写切片
+	if t.SegmentOffset > 0 {
+		data, _ := t.StreamBuffers[0].Data()
+		utils.Assert(len(data) > 0)
+		send(sink, data[:t.SegmentOffset])
+		return nil
+	}
+
+	//发送上一组GOP
+	if t.StreamBuffers[1] != nil && !t.StreamBuffers[1].Empty() {
+		data, _ := t.StreamBuffers[1].Data()
+		utils.Assert(len(data) > 0)
+		send(sink, data)
+		return nil
+	}
+
+	return nil
+}
+
+func (t *httpTransStream) writeSeparator(dst []byte) {
+
+	dst[HttpFlvBlockLengthSize-2] = 0x0D
+	dst[HttpFlvBlockLengthSize-1] = 0x0A
+
+	flvSize := len(dst) - HttpFlvBlockLengthSize - 2
+	hexStr := fmt.Sprintf("%X", flvSize)
+	//长度+换行符
+	n := len(hexStr) + 2
+	binary.BigEndian.PutUint16(dst[4:], uint16(HttpFlvBlockLengthSize-n-6))
+	copy(dst[HttpFlvBlockLengthSize-n:], hexStr)
+
+	dst[HttpFlvBlockLengthSize+flvSize] = 0x0D
+	dst[HttpFlvBlockLengthSize+flvSize+1] = 0x0A
+
+	binary.BigEndian.PutUint32(dst, uint32(len(dst)-4))
+}
+
+func (t *httpTransStream) WriteHeader() error {
+	t.Init()
+
+	_ = t.muxer.WriteHeader(t.header[HttpFlvBlockLengthSize:])
+	t.headerSize += 2
+	t.writeSeparator(t.header[:t.headerSize])
+	return nil
+}
diff --git a/main.go b/main.go
index 3d036a2..82105c2 100644
--- a/main.go
+++ b/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"github.com/yangjiechina/live-server/flv"
 	"github.com/yangjiechina/live-server/hls"
 	"net"
 	"net/http"
@@ -27,6 +28,8 @@ func CreateTransStream(source stream.ISource, protocol stream.Protocol, streams
 		}
 
 		return transStream
+	} else if stream.ProtocolFlv == protocol {
+		return flv.NewHttpTransStream()
 	}
 
 	return nil
diff --git a/rtmp/rtmp_session.go b/rtmp/rtmp_session.go
index 3af487d..c179fe8 100644
--- a/rtmp/rtmp_session.go
+++ b/rtmp/rtmp_session.go
@@ -55,7 +55,7 @@ func (s *sessionImpl) OnPlay(app, stream_ string, response chan utils.HookState)
 	sourceId := app + "_" + stream_
 
 	//拉流事件Sink统一处理
-	sink := NewSink(stream.GenerateSinkId(s.conn), sourceId, s.conn)
+	sink := NewSink(stream.GenerateSinkId(s.conn.RemoteAddr()), sourceId, s.conn)
 	sink.(*stream.SinkImpl).Play(sink, func() {
 		s.handle = sink
 		response <- utils.HookStateOK
diff --git a/rtmp/rtmp_stream.go b/rtmp/rtmp_stream.go
index 6222071..e280223 100644
--- a/rtmp/rtmp_stream.go
+++ b/rtmp/rtmp_stream.go
@@ -1,7 +1,6 @@
 package rtmp
 
 import (
-	"fmt"
 	"github.com/yangjiechina/avformat/libflv"
 	"github.com/yangjiechina/avformat/librtmp"
 	"github.com/yangjiechina/avformat/utils"
@@ -9,41 +8,19 @@ import (
 )
 
 type TransStream struct {
-	stream.TransStreamImpl
+	stream.CacheTransStream
 	chunkSize int
 	//sequence header
 	header     []byte
 	headerSize int
-	muxer      *libflv.Muxer
+	muxer      libflv.Muxer
 
-	//只存在音频流
-	onlyAudio  bool
 	audioChunk librtmp.Chunk
 	videoChunk librtmp.Chunk
-
-	//只需要缓存一组GOP+第2组GOP的第一个合并写切片
-	//当缓存到第2组GOP的第二个合并写切片时，将上一个GOP缓存释放掉
-	//使用2块内存池，分别缓存2个GOP，保证内存连续，一次发送
-	//不开启GOP缓存和只有音频包的情况下，创建使用一个MemoryPool
-	memoryPool [2]stream.MemoryPool
-
-	//当前合并写切片的缓存时长
-	segmentDuration int
-	//当前合并写切片位于memoryPool的开始偏移量
-	segmentOffset int
-	//前一个包的时间戳
-	prePacketTS int64
-
-	firstVideoPacket bool
-
-	//发送未完整切片的Sinks
-	//当AddSink时，还未缓存到一组切片，有多少先发多少. 后续切片未满之前的生成的rtmp包都将直接发送给sink.
-	//只要满了一组切片后，这些sink都不单独发包, 统一发送切片.
-	incompleteSinks []stream.ISink
 }
 
 func NewTransStream(chunkSize int) stream.ITransStream {
-	transStream := &TransStream{chunkSize: chunkSize, TransStreamImpl: stream.TransStreamImpl{Sinks: make(map[stream.SinkId]stream.ISink, 64)}}
+	transStream := &TransStream{chunkSize: chunkSize}
 	return transStream
 }
 
@@ -64,15 +41,6 @@ func (t *TransStream) Input(packet utils.AVPacket) error {
 		chunk = &t.audioChunk
 		payloadSize += 2 + length
 	} else if utils.AVMediaTypeVideo == packet.MediaType() {
-		//首帧必须要视频关键帧
-		if !t.firstVideoPacket {
-			if !packet.KeyFrame() {
-				return fmt.Errorf("the first video frame must be a keyframe")
-			}
-
-			t.firstVideoPacket = true
-		}
-
 		videoPkt = true
 		videoKey = packet.KeyFrame()
 		data = packet.AVCCPacketData()
@@ -81,33 +49,16 @@ func (t *TransStream) Input(packet utils.AVPacket) error {
 		payloadSize += 5 + length
 	}
 
-	//即不开启GOP缓存又不合并发送. 直接使用AVPacket的预留头封装发送
-	if !stream.AppConfig.GOPCache || t.onlyAudio {
-		//首帧视频帧必须要关键帧
-		return nil
-	}
-
 	if videoKey {
-		tmp := t.memoryPool[0]
+		tmp := t.StreamBuffers[0]
 		head, _ := tmp.Data()
-		if len(head) > t.segmentOffset {
-			for _, sink := range t.Sinks {
-				sink.Input(head[t.segmentOffset:])
-			}
-		}
-
-		t.memoryPool[0].Clear()
-		//交替使用缓存
-		t.memoryPool[0] = t.memoryPool[1]
-		t.memoryPool[1] = tmp
-
-		t.segmentDuration = 0
-		t.segmentOffset = 0
+		t.SendPacket(head[t.SegmentOffset:])
+		t.SwapStreamBuffer()
 	}
 
 	//分配内存
-	t.memoryPool[0].Mark()
-	allocate := t.memoryPool[0].Allocate(12 + payloadSize + (payloadSize / t.chunkSize))
+	t.StreamBuffers[0].Mark()
+	allocate := t.StreamBuffers[0].Allocate(12 + payloadSize + (payloadSize / t.chunkSize))
 
 	//写chunk头
 	chunk.Length = payloadSize
@@ -119,77 +70,19 @@ func (t *TransStream) Input(packet utils.AVPacket) error {
 	ct := packet.Pts() - packet.Dts()
 	if videoPkt {
 		n += t.muxer.WriteVideoData(allocate[12:], uint32(ct), packet.KeyFrame(), false)
+		n += chunk.WriteData(allocate[n:], data, t.chunkSize)
 	} else {
 		n += t.muxer.WriteAudioData(allocate[12:], false)
+		n += chunk.WriteData(allocate[n:], data, t.chunkSize)
 	}
 
-	first := true
-	for length > 0 {
-		var min int
-		if first {
-			min = utils.MinInt(length, t.chunkSize-5)
-			first = false
-		} else {
-			min = utils.MinInt(length, t.chunkSize)
-		}
-
-		copy(allocate[n:], data[:min])
-		n += min
-
-		length -= min
-		data = data[min:]
-
-		//写一个ChunkType3用作分割
-		if length > 0 {
-			if videoPkt {
-				allocate[n] = (0x3 << 6) | byte(librtmp.ChunkStreamIdVideo)
-			} else {
-				allocate[n] = (0x3 << 6) | byte(librtmp.ChunkStreamIdAudio)
-			}
-			n++
-		}
-	}
-
-	rtmpData := t.memoryPool[0].Fetch()[:n]
-	t.segmentDuration += int(packet.Pts() - t.prePacketTS)
-	t.prePacketTS = packet.Pts()
-
-	//给不完整切片的Sink补齐包
-	if len(t.incompleteSinks) > 0 {
-		for _, sink := range t.incompleteSinks {
-			sink.Input(rtmpData)
-		}
-
-		if t.segmentDuration >= stream.AppConfig.MergeWriteLatency {
-			head, tail := t.memoryPool[0].Data()
-			utils.Assert(len(tail) == 0)
-
-			t.segmentOffset = len(head)
-			t.segmentDuration = 0
-			t.incompleteSinks = nil
-		}
-
+	_ = t.StreamBuffers[0].Fetch()[:n]
+	if t.Full(packet.Pts()) {
 		return nil
 	}
 
-	if t.segmentDuration < stream.AppConfig.MergeWriteLatency {
-		return nil
-	}
-
-	head, tail := t.memoryPool[0].Data()
-	utils.Assert(len(tail) == 0)
-	for _, sink := range t.Sinks {
-		sink.Input(head[t.segmentOffset:])
-	}
-
-	t.segmentOffset = len(head)
-	t.segmentDuration = 0
-
-	//当缓存到第2组GOP的第二个合并写切片时，将上一个GOP缓存释放掉
-	if t.segmentOffset > len(head) && t.memoryPool[1] != nil && !t.memoryPool[1].Empty() {
-		t.memoryPool[1].Clear()
-	}
-
+	head, _ := t.StreamBuffers[0].Data()
+	t.SendPacketWithOffset(head[:], t.SegmentOffset)
 	return nil
 }
 
@@ -200,36 +93,22 @@ func (t *TransStream) AddSink(sink stream.ISink) error {
 	//发送sequence header
 	sink.Input(t.header[:t.headerSize])
 
-	if !stream.AppConfig.GOPCache || t.onlyAudio {
-		return nil
-	}
-
 	//发送当前内存池已有的合并写切片
-	if t.segmentOffset > 0 {
-		data, tail := t.memoryPool[0].Data()
+	if t.SegmentOffset > 0 {
+		data, _ := t.StreamBuffers[0].Data()
 		utils.Assert(len(data) > 0)
-		utils.Assert(len(tail) == 0)
-		sink.Input(data[:t.segmentOffset])
+		sink.Input(data[:t.SegmentOffset])
 		return nil
 	}
 
 	//发送上一组GOP
-	if t.memoryPool[1] != nil && !t.memoryPool[1].Empty() {
-		data, tail := t.memoryPool[0].Data()
+	if t.StreamBuffers[1] != nil && !t.StreamBuffers[1].Empty() {
+		data, _ := t.StreamBuffers[0].Data()
 		utils.Assert(len(data) > 0)
-		utils.Assert(len(tail) == 0)
 		sink.Input(data)
 		return nil
 	}
 
-	//不足一个合并写切片, 有多少发多少
-	data, tail := t.memoryPool[0].Data()
-	utils.Assert(len(tail) == 0)
-	if len(data) > 0 {
-		sink.Input(data)
-		t.incompleteSinks = append(t.incompleteSinks, sink)
-	}
-
 	return nil
 }
 
@@ -237,6 +116,8 @@ func (t *TransStream) WriteHeader() error {
 	utils.Assert(t.Tracks != nil)
 	utils.Assert(!t.TransStreamImpl.Completed)
 
+	t.Init()
+
 	var audioStream utils.AVStream
 	var videoStream utils.AVStream
 	var audioCodecId utils.AVCodecID
@@ -259,16 +140,16 @@ func (t *TransStream) WriteHeader() error {
 	//初始化
 	t.TransStreamImpl.Completed = true
 	t.header = make([]byte, 1024)
-	t.muxer = libflv.NewMuxer(audioCodecId, videoCodecId, 0, 0, 0)
-
-	if stream.AppConfig.GOPCache {
-		//创建2块内存
-		t.memoryPool[0] = stream.NewMemoryPoolWithDirect(1024*4000, true)
-		t.memoryPool[1] = stream.NewMemoryPoolWithDirect(1024*4000, true)
-	} else {
-
+	t.muxer = libflv.NewMuxer()
+	if utils.AVCodecIdNONE != audioCodecId {
+		t.muxer.AddAudioTrack(audioCodecId, 0, 0, 0)
 	}
 
+	if utils.AVCodecIdNONE != videoCodecId {
+		t.muxer.AddVideoTrack(videoCodecId)
+	}
+
+	//统一生成rtmp拉流需要的数据头(chunk+sequence header)
 	var n int
 	if audioStream != nil {
 		n += t.muxer.WriteAudioData(t.header[12:], true)
diff --git a/stream/hook.go b/stream/hook.go
index 79ddbf9..8c88b73 100644
--- a/stream/hook.go
+++ b/stream/hook.go
@@ -8,23 +8,6 @@ import (
 )
 
 type HookFunc func(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-type Hook interface {
-	DoPublish(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-	DoPublishDone(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-	DoPlay(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-	DoPlayDone(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-	DoRecord(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-	DoIdleTimeout(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-
-	DoRecvTimeout(m map[string]interface{}, success func(response *http.Response), failure func(response *http.Response, err error)) error
-}
-
 type HookEvent int
 
 const (
@@ -44,8 +27,12 @@ type eventInfo struct {
 	remoteAddr string //peer地址
 }
 
-func NewHookEventInfo(stream, protocol, remoteAddr string) eventInfo {
-	return eventInfo{stream: stream, protocol: protocol, remoteAddr: remoteAddr}
+func NewPlayHookEventInfo(stream, remoteAddr string, protocol Protocol) eventInfo {
+	return eventInfo{stream: stream, protocol: streamTypeToStr(protocol), remoteAddr: remoteAddr}
+}
+
+func NewPublishHookEventInfo(stream, remoteAddr string, protocol SourceType) eventInfo {
+	return eventInfo{stream: stream, protocol: sourceTypeToStr(protocol), remoteAddr: remoteAddr}
 }
 
 type HookSession interface {
diff --git a/stream/memory_pool.go b/stream/memory_pool.go
index cec23fd..80a93ad 100644
--- a/stream/memory_pool.go
+++ b/stream/memory_pool.go
@@ -187,12 +187,11 @@ func (m *memoryPool) FreeTail() {
 }
 
 func (m *memoryPool) Data() ([]byte, []byte) {
-	if m.tail <= m.head {
+	if m.tail <= m.head && !m.blockQueue.IsEmpty() {
 		return m.data[m.head:m.capacity], m.data[:m.tail]
 	} else {
 		return m.data[m.head:m.tail], nil
 	}
-
 }
 
 func (m *memoryPool) Clear() {
diff --git a/stream/sink.go b/stream/sink.go
index fe71271..814f00f 100644
--- a/stream/sink.go
+++ b/stream/sink.go
@@ -5,7 +5,6 @@ import (
 	"github.com/yangjiechina/avformat/utils"
 	"net"
 	"net/http"
-	"sync/atomic"
 )
 
 type SinkId interface{}
@@ -41,24 +40,24 @@ type ISink interface {
 	Close()
 }
 
-// GenerateSinkId 根据Conn生成SinkId IPV4使用一个uint64, IPV6使用String
-func GenerateSinkId(conn net.Conn) SinkId {
-	network := conn.RemoteAddr().Network()
+// GenerateSinkId 根据网络地址生成SinkId IPV4使用一个uint64, IPV6使用String
+func GenerateSinkId(addr net.Addr) SinkId {
+	network := addr.Network()
 	if "tcp" == network {
-		id := uint64(utils.BytesToInt(conn.RemoteAddr().(*net.TCPAddr).IP.To4()))
+		id := uint64(utils.BytesToInt(addr.(*net.TCPAddr).IP.To4()))
 		id <<= 32
-		id |= uint64(conn.RemoteAddr().(*net.TCPAddr).Port << 16)
+		id |= uint64(addr.(*net.TCPAddr).Port << 16)
 
 		return id
 	} else if "udp" == network {
-		id := uint64(utils.BytesToInt(conn.RemoteAddr().(*net.UDPAddr).IP.To4()))
+		id := uint64(utils.BytesToInt(addr.(*net.UDPAddr).IP.To4()))
 		id <<= 32
-		id |= uint64(conn.RemoteAddr().(*net.UDPAddr).Port << 16)
+		id |= uint64(addr.(*net.UDPAddr).Port << 16)
 
 		return id
 	}
 
-	return conn.RemoteAddr().String()
+	return addr.String()
 }
 
 type SinkImpl struct {
@@ -74,7 +73,7 @@ type SinkImpl struct {
 	//Sink在请求拉流->Source推流->Sink断开整个阶段 是无锁线程安全
 	//如果Sink在等待队列-Sink断开，这个过程是非线程安全的
 	//SetState的时候，如果closed为true，返回false, 调用者自行删除sink
-	closed atomic.Bool
+	//closed atomic.Bool
 
 	//HasSentKeyVideo 是否已经发送视频关键帧
 	//未开启GOP缓存的情况下，为避免播放花屏，发送的首个视频帧必须为关键帧
@@ -121,10 +120,10 @@ func (s *SinkImpl) State() SessionState {
 }
 
 func (s *SinkImpl) SetState(state SessionState) bool {
-	load := s.closed.Load()
-	if load {
-		return false
-	}
+	//load := s.closed.Load()
+	//if load {
+	//	return false
+	//}
 
 	if s.State_ < SessionStateClose {
 		s.State_ = state
@@ -136,7 +135,8 @@ func (s *SinkImpl) SetState(state SessionState) bool {
 	//
 	//}
 
-	return !s.closed.Load()
+	//return !s.closed.Load()
+	return true
 }
 
 func (s *SinkImpl) EnableVideo() bool {
@@ -166,7 +166,7 @@ func (s *SinkImpl) Close() {
 		//从等待队列中删除sink
 		RemoveSinkFromWaitingQueue(s.SourceId_, s.Id_)
 		s.State_ = SessionStateClose
-		s.closed.Store(true)
+		//s.closed.Store(true)
 	}
 }
 
@@ -188,7 +188,7 @@ func (s *SinkImpl) Play(sink ISink, success func(), failure func(state utils.Hoo
 		return
 	}
 
-	err := s.Hook(HookEventPlay, NewHookEventInfo(sink.SourceId(), streamTypeToStr(sink.Protocol()), ""), func(response *http.Response) {
+	err := s.Hook(HookEventPlay, NewPlayHookEventInfo(sink.SourceId(), "", sink.Protocol()), func(response *http.Response) {
 		f()
 		success()
 	}, func(response *http.Response, err error) {
diff --git a/stream/sink_manager.go b/stream/sink_manager.go
index e3ff3ac..3231761 100644
--- a/stream/sink_manager.go
+++ b/stream/sink_manager.go
@@ -1,10 +1,14 @@
 package stream
 
-import "sync"
+import (
+	"fmt"
+	"sync"
+)
 
+// 等待队列所有的Sink
 var waitingSinks map[string]map[SinkId]ISink
 
-var mutex sync.Mutex
+var mutex sync.RWMutex
 
 func init() {
 	waitingSinks = make(map[string]map[SinkId]ISink, 1024)
@@ -56,5 +60,83 @@ func PopWaitingSinks(sourceId string) []ISink {
 	for _, sink := range source {
 		sinks[index] = sink
 	}
+
+	delete(waitingSinks, sourceId)
 	return sinks
 }
+
+func ExistSinkInWaitingQueue(sourceId string, sinkId SinkId) bool {
+	mutex.RLock()
+	defer mutex.RUnlock()
+
+	source, ok := waitingSinks[sourceId]
+	if !ok {
+		return false
+	}
+
+	_, ok = source[sinkId]
+	return ok
+}
+
+func ExistSink(sourceId string, sinkId SinkId) bool {
+	if sourceId != "" {
+		if exist := ExistSinkInWaitingQueue(sourceId, sinkId); exist {
+			return true
+		}
+	}
+
+	return SinkManager.Exist(sinkId)
+}
+
+// ISinkManager 添加到TransStream的所有Sink
+type ISinkManager interface {
+	Add(source ISink) error
+
+	Find(id SinkId) ISink
+
+	Remove(id SinkId) (ISink, error)
+
+	Exist(id SinkId) bool
+}
+
+var SinkManager ISinkManager
+
+func init() {
+	SinkManager = &sinkManagerImpl{}
+}
+
+type sinkManagerImpl struct {
+	m sync.Map
+}
+
+func (s *sinkManagerImpl) Add(source ISink) error {
+	_, ok := s.m.LoadOrStore(source.Id(), source)
+	if ok {
+		return fmt.Errorf("the source %s has been exist", source.Id())
+	}
+
+	return nil
+}
+
+func (s *sinkManagerImpl) Find(id SinkId) ISink {
+	value, ok := s.m.Load(id)
+	if ok {
+		return value.(ISink)
+	}
+
+	return nil
+}
+
+func (s *sinkManagerImpl) Remove(id SinkId) (ISink, error) {
+	value, loaded := s.m.LoadAndDelete(id)
+	if loaded {
+		return value.(ISink), nil
+	}
+
+	return nil, fmt.Errorf("source with id %s was not find", id)
+}
+
+func (s *sinkManagerImpl) Exist(id SinkId) bool {
+	_, ok := s.m.Load(id)
+	return ok
+}
diff --git a/stream/source.go b/stream/source.go
index 27db6ed..4e4b8a3 100644
--- a/stream/source.go
+++ b/stream/source.go
@@ -494,7 +494,7 @@ func (s *SourceImpl) Publish(source ISource, success func(), failure func(state
 		return
 	}
 
-	err := s.Hook(HookEventPublish, NewHookEventInfo(source.Id(), sourceTypeToStr(source.Type()), ""),
+	err := s.Hook(HookEventPublish, NewPublishHookEventInfo(source.Id(), "", source.Type()),
 		func(response *http.Response) {
 			if err := SourceManager.Add(source); err == nil {
 				success()
diff --git a/stream/stream_manager.go b/stream/stream_manager.go
index 673a90b..47162c8 100644
--- a/stream/stream_manager.go
+++ b/stream/stream_manager.go
@@ -4,9 +4,22 @@ import (
 	"github.com/yangjiechina/avformat/utils"
 )
 
+type IStreamManager interface {
+	Add(stream utils.AVStream)
+
+	FindStream(id utils.AVCodecID) utils.AVStream
+
+	FindStreamWithType(mediaType utils.AVMediaType) utils.AVStream
+
+	FindStreams(id utils.AVCodecID) []utils.AVStream
+
+	FindStreamsWithType(mediaType utils.AVMediaType) []utils.AVStream
+
+	All() []utils.AVStream
+}
+
 type StreamManager struct {
-	streams   []utils.AVStream
-	completed bool
+	streams []utils.AVStream
 }
 
 func (s *StreamManager) Add(stream utils.AVStream) {
diff --git a/stream/trans_stream.go b/stream/trans_stream.go
index aec34ce..a0e7463 100644
--- a/stream/trans_stream.go
+++ b/stream/trans_stream.go
@@ -66,6 +66,8 @@ var TransStreamFactory func(source ISource, protocol Protocol, streams []utils.A
 
 // ITransStream 讲AVPacket封装成传输流，转发给各个Sink
 type ITransStream interface {
+	Init()
+
 	Input(packet utils.AVPacket) error
 
 	AddTrack(stream utils.AVStream) error
@@ -81,6 +83,8 @@ type ITransStream interface {
 	AllSink() []ISink
 
 	Close() error
+
+	SendPacket(data []byte) error
 }
 
 type TransStreamImpl struct {
@@ -92,6 +96,10 @@ type TransStreamImpl struct {
 	ExistVideo  bool
 }
 
+func (t *TransStreamImpl) Init() {
+	t.Sinks = make(map[SinkId]ISink, 64)
+}
+
 func (t *TransStreamImpl) Input(packet utils.AVPacket) error {
 	return nil
 }
@@ -134,3 +142,68 @@ func (t *TransStreamImpl) AllSink() []ISink {
 func (t *TransStreamImpl) Close() error {
 	return nil
 }
+func (t *TransStreamImpl) SendPacket(data []byte) error {
+	for _, sink := range t.Sinks {
+		sink.Input(data)
+	}
+
+	return nil
+}
+
+// CacheTransStream 针对RTMP/FLV/HLS等基于TCP传输的带缓存传输流.
+type CacheTransStream struct {
+	TransStreamImpl
+
+	//作为封装流的内存缓存区, 即使没有开启GOP缓存也创建一个, 开启GOP缓存的情况下, 创建2个, 反复交替使用.
+	StreamBuffers []MemoryPool
+
+	//当前合并写切片位于memoryPool的开始偏移量
+	SegmentOffset int
+	//前一个包的时间戳
+	PrePacketTS int64
+}
+
+func (c *CacheTransStream) Init() {
+	c.TransStreamImpl.Init()
+
+	c.StreamBuffers = make([]MemoryPool, 2)
+	c.StreamBuffers[0] = NewMemoryPoolWithDirect(1024*4000, true)
+
+	if c.ExistVideo && AppConfig.MergeWriteLatency > 0 {
+		c.StreamBuffers[1] = NewMemoryPoolWithDirect(1024*4000, true)
+	}
+
+	c.SegmentOffset = 0
+	c.PrePacketTS = -1
+}
+
+func (c *CacheTransStream) Full(ts int64) bool {
+	if c.PrePacketTS == -1 {
+		c.PrePacketTS = ts
+	}
+
+	if ts < c.PrePacketTS {
+		c.PrePacketTS = ts
+	}
+
+	return int(ts-c.PrePacketTS) >= AppConfig.MergeWriteLatency
+}
+
+func (c *CacheTransStream) SwapStreamBuffer() {
+	utils.Assert(c.ExistVideo)
+
+	tmp := c.StreamBuffers[0]
+	c.StreamBuffers[0] = c.StreamBuffers[1]
+	c.StreamBuffers[1] = tmp
+	c.StreamBuffers[0].Clear()
+
+	c.PrePacketTS = -1
+	c.SegmentOffset = 0
+}
+
+func (c *CacheTransStream) SendPacketWithOffset(data []byte, offset int) error {
+	c.TransStreamImpl.SendPacket(data[offset:])
+	c.SegmentOffset = len(data)
+	c.PrePacketTS = -1
+	return nil
+}