提高时间戳精度，修复rtsp写入和rtp补完问题

2025-10-09 10:30:22 +08:00 · 2023-03-23 09:36:49 +08:00
parent 7e42a85ebf
commit 336b0ae759
17 changed files with 363 additions and 227 deletions
--- a/codec/mpegps/mpegps.go
+++ b/codec/mpegps/mpegps.go
@@ -37,7 +37,7 @@ type MpegPsStream struct {
 	video MpegPsEsStream
 }

-func (ps *MpegPsStream) Drop() {
+func (ps *MpegPsStream) Reset() {
 	ps.buffer.Reset()
 	ps.audio.Reset()
 	if ps.video.Buffer.CanRead() {
--- a/codec/mpegps/ps-demuxer.go
+++ b/codec/mpegps/ps-demuxer.go
@@ -166,7 +166,7 @@ func (psdemuxer *PSDemuxer) Feed(data []byte) error {
    return ret
 }

-func (psdemuxer *PSDemuxer) Drop() {
+func (psdemuxer *PSDemuxer) Reset() {
 	psdemuxer.cache = psdemuxer.cache[:0]
    for _, stream := range psdemuxer.streamMap {
        if len(stream.streamBuf) == 0 {
--- a/common/dtsestimator.go
+++ b/common/dtsestimator.go
@@ -58,10 +58,12 @@ func (d *DTSEstimator) Feed(pts uint32) uint32 {
 		dts = d.cache[0]
 	}

-	if d.prevDTS > dts {
-		dts = d.prevDTS
+	// if d.prevDTS > dts {
+	// 	dts = d.prevDTS
+	// }
+	if d.prevDTS >= dts {
+		dts = d.prevDTS + 90
 	}
-
 	d.prevPTS = pts
 	d.prevDTS = dts
 	return dts
--- a/common/frame.go
+++ b/common/frame.go
@@ -46,8 +46,7 @@ func (r *RTPFrame) Unmarshal(raw []byte) *RTPFrame {

 type BaseFrame struct {
 	DeltaTime uint32    // 相对上一帧时间戳，毫秒
-	AbsTime   uint32    // 绝对时间戳，毫秒
-	Timestamp time.Time // 写入时间,可用于比较两个帧的先后
+	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
 }
@@ -61,8 +60,9 @@ type AVFrame struct {
 	BaseFrame
 	IFrame    bool
 	CanRead   bool `json:"-"`
-	PTS     uint32
-	DTS     uint32
+	PTS       time.Duration
+	DTS       time.Duration
+	Timestamp time.Duration               // 绝对时间戳
 	ADTS      *util.ListItem[util.Buffer] `json:"-"` // ADTS头
 	AVCC      util.BLL                    `json:"-"` // 打包好的AVCC格式(MPEG-4格式、Byte-Stream Format)
 	RTP       util.List[RTPFrame]         `json:"-"`
@@ -73,7 +73,7 @@ func (av *AVFrame) WriteAVCC(ts uint32, frame *util.BLL) {
 	if ts == 0 {
 		ts = 1
 	}
-	av.AbsTime = ts
+	av.Timestamp = time.Duration(ts) * time.Millisecond
 	av.BytesIn += frame.ByteLength
 	for {
 		item := frame.Shift()
@@ -96,7 +96,7 @@ func (av *AVFrame) Reset() {
 		av.ADTS = nil
 	}
 	av.BytesIn = 0
-	av.AbsTime = 0
+	av.Timestamp = 0
 	av.DeltaTime = 0
 }

--- a/common/index.go
+++ b/common/index.go
@@ -68,7 +68,7 @@ func (bt *Base) SnapForJson() {
 }
 func (bt *Base) Flush(bf *BaseFrame) {
 	bt.ComputeBPS(bf.BytesIn)
-	bf.Timestamp = time.Now()
+	bf.WriteTime = time.Now()
 }
 func (bt *Base) SetStuff(stuff ...any) {
 	for _, s := range stuff {
--- a/http.go
+++ b/http.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"net/http"
 	"os"
+	"strings"
 	"time"

 	"gopkg.in/yaml.v3"
@@ -227,12 +228,35 @@ func (conf *GlobalConfig) API_replay_rtpdump(w http.ResponseWriter, r *http.Requ
 	default:
 		pub.ACodec = codec.CodecID_AAC
 	}
-	pub.DumpFile = dumpFile
+	ss := strings.Split(dumpFile, ",")
+	if len(ss) > 1 {
 		if err := Engine.Publish(streamPath, &pub); err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 		} else {
+			for _, s := range ss {
+				f, err := os.Open(s)
+				if err != nil {
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+					return
+				}
+				go pub.Feed(f)
+			}
 			w.Write([]byte("ok"))
 		}
+	} else {
+		f, err := os.Open(dumpFile)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if err := Engine.Publish(streamPath, &pub); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		} else {
+			pub.SetIO(f)
+			w.Write([]byte("ok"))
+			go pub.Feed(f)
+		}
+	}
 }

 func (conf *GlobalConfig) API_replay_ts(w http.ResponseWriter, r *http.Request) {
@@ -245,12 +269,42 @@ func (conf *GlobalConfig) API_replay_ts(w http.ResponseWriter, r *http.Request)
 	if dumpFile == "" {
 		dumpFile = streamPath + ".ts"
 	}
+	f, err := os.Open(dumpFile)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
 	var pub TSPublisher
 	if err := Engine.Publish(streamPath, &pub); err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 	} else {
-		f, _ := os.Open(dumpFile)
+		pub.SetIO(f)
 		go pub.Feed(f)
 		w.Write([]byte("ok"))
 	}
 }
+
+func (conf *GlobalConfig) API_replay_mp4(w http.ResponseWriter, r *http.Request) {
+	q := r.URL.Query()
+	streamPath := q.Get("streamPath")
+	if streamPath == "" {
+		streamPath = "dump/mp4"
+	}
+	dumpFile := q.Get("dump")
+	if dumpFile == "" {
+		dumpFile = streamPath + ".mp4"
+	}
+	var pub MP4Publisher
+	f, err := os.Open(dumpFile)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	if err := Engine.Publish(streamPath, &pub); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+	} else {
+		pub.SetIO(f)
+		w.Write([]byte("ok"))
+		go pub.ReadMP4Data(f)
+	}
+}
--- a/publisher-mp4.go
+++ b/publisher-mp4.go
@@ -0,0 +1,61 @@
+package engine
+
+import (
+	"io"
+
+	"github.com/yapingcat/gomedia/go-mp4"
+	"go.uber.org/zap"
+	"m7s.live/engine/v4/track"
+)
+
+type MP4Publisher struct {
+	Publisher
+	*mp4.MovDemuxer `json:"-"`
+}
+
+// Start reading the MP4 file
+func (p *MP4Publisher) ReadMP4Data(source io.ReadSeeker) error {
+	defer p.Stop()
+	p.MovDemuxer = mp4.CreateMp4Demuxer(source)
+	if tracks, err := p.ReadHead(); err != nil {
+		if err == io.EOF {
+			p.Info("Reached end of MP4 file")
+			return nil
+		}
+		p.Error("Error reading MP4 header", zap.Error(err))
+		return err
+	} else {
+		info := p.GetMp4Info()
+		p.Info("MP4 info", zap.Any("info", info))
+		for _, t := range tracks {
+			p.Info("MP4 track", zap.Any("track", t))
+			switch t.Cid {
+			case mp4.MP4_CODEC_H264:
+				p.VideoTrack = track.NewH264(p.Stream)
+			case mp4.MP4_CODEC_H265:
+				p.VideoTrack = track.NewH265(p.Stream)
+			case mp4.MP4_CODEC_AAC:
+				p.AudioTrack = track.NewAAC(p.Stream)
+			case mp4.MP4_CODEC_G711A:
+				p.AudioTrack = track.NewG711(p.Stream, true)
+			case mp4.MP4_CODEC_G711U:
+				p.AudioTrack = track.NewG711(p.Stream, false)
+			}
+		}
+		for {
+			pkg, err := p.ReadPacket()
+			if err != nil {
+				p.Error("Error reading MP4 packet", zap.Error(err))
+				return err
+			}
+			switch pkg.Cid {
+			case mp4.MP4_CODEC_H264, mp4.MP4_CODEC_H265:
+				p.VideoTrack.WriteAnnexB(uint32(pkg.Pts), uint32(pkg.Dts), pkg.Data)
+			case mp4.MP4_CODEC_AAC:
+				p.AudioTrack.WriteADTS(uint32(pkg.Pts), pkg.Data)
+			case mp4.MP4_CODEC_G711A, mp4.MP4_CODEC_G711U:
+				p.AudioTrack.WriteRaw(uint32(pkg.Pts), pkg.Data)
+			}
+		}
+	}
+}
--- a/publisher-ps.go
+++ b/publisher-ps.go
@@ -32,16 +32,14 @@ func (p *PSPublisher) PushPS(rtp *rtp.Packet) {
 	if p.Stream == nil {
 		return
 	}
-	if p.EsHandler == nil {
+	if p.pool == nil {
 		// p.PSDemuxer = mpegps.NewPSDemuxer()
 		// p.PSDemuxer.OnPacket = p.OnPacket
 		// p.PSDemuxer.OnFrame = p.OnFrame
 		p.EsHandler = p
 		p.lastSeq = rtp.SequenceNumber - 1
-		if p.pool == nil {
 		p.pool = make(util.BytesPool, 17)
 	}
-	}
 	if p.DisableReorder {
 		p.Feed(rtp.Payload)
 		p.lastSeq = rtp.SequenceNumber
--- a/publisher-rtpdump.go
+++ b/publisher-rtpdump.go
@@ -2,8 +2,10 @@ package engine

 import (
 	"os"
+	"sync"
 	"time"

+	"github.com/aler9/gortsplib/pkg/mpeg4audio"
 	"github.com/pion/webrtc/v3/pkg/media/rtpdump"
 	"go.uber.org/zap"
 	"m7s.live/engine/v4/codec"
@@ -14,56 +16,84 @@ import (

 type RTPDumpPublisher struct {
 	Publisher
-	DumpFile string
 	VCodec codec.VideoCodecID
 	ACodec codec.AudioCodecID
-	file     *os.File
+	other  *rtpdump.Packet
+	sync.Mutex
 }

-func (t *RTPDumpPublisher) OnEvent(event any) {
-	var err error
-	t.Publisher.OnEvent(event)
-	switch event.(type) {
-	case IPublisher:
-		t.file, err = os.Open(t.DumpFile)
+func (t *RTPDumpPublisher) Feed(file *os.File) {
+	r, h, err := rtpdump.NewReader(file)
 	if err != nil {
 		t.Stream.Error("RTPDumpPublisher open file error", zap.Error(err))
 		return
 	}
-		r, h, err := rtpdump.NewReader(t.file)
-		if err != nil {
-			t.Stream.Error("RTPDumpPublisher open file error", zap.Error(err))
-			return
-		}
-		t.Stream.Info("RTPDumpPublisher open file success", zap.String("file", t.DumpFile), zap.String("start", h.Start.String()), zap.String("source", h.Source.String()), zap.Uint16("port", h.Port))
+	t.Stream.Info("RTPDumpPublisher open file success", zap.String("file", file.Name()), zap.String("start", h.Start.String()), zap.String("source", h.Source.String()), zap.Uint16("port", h.Port))
+	if t.VideoTrack == nil {
 		switch t.VCodec {
 		case codec.CodecID_H264:
 			t.VideoTrack = track.NewH264(t.Publisher.Stream)
 		case codec.CodecID_H265:
 			t.VideoTrack = track.NewH265(t.Publisher.Stream)
 		}
+		t.VideoTrack.SetSpeedLimit(500 * time.Millisecond)
+	}
+	if t.AudioTrack == nil {
 		switch t.ACodec {
 		case codec.CodecID_AAC:
-			t.AudioTrack = track.NewAAC(t.Publisher.Stream)
+			at := track.NewAAC(t.Publisher.Stream)
+			t.AudioTrack = at
+			var c mpeg4audio.Config
+			c.ChannelCount = 2
+			c.SampleRate = 48000
+			asc, _ := c.Marshal()
+			at.WriteSequenceHead(append([]byte{0xAF, 0x00}, asc...))
 		case codec.CodecID_PCMA:
 			t.AudioTrack = track.NewG711(t.Publisher.Stream, true)
 		case codec.CodecID_PCMU:
 			t.AudioTrack = track.NewG711(t.Publisher.Stream, false)
 		}
-		t.VideoTrack.SetSpeedLimit(500 * time.Millisecond)
 		t.AudioTrack.SetSpeedLimit(500 * time.Millisecond)
+	}
+	needLock := true
 	for {
 		packet, err := r.Next()
 		if err != nil {
 			t.Stream.Error("RTPDumpPublisher read file error", zap.Error(err))
 			return
 		}
-			if !packet.IsRTCP {
+		if packet.IsRTCP {
+			continue
+		}
+		if needLock {
+			t.Lock()
+		}
+		if t.other == nil {
+			t.other = &packet
+			t.Unlock()
+			needLock = true
+			continue
+		}
+		if packet.Offset > t.other.Offset {
+			t.WriteRTP(t.other.Payload)
+			t.other = &packet
+			t.Unlock()
+			needLock = true
+			continue
+		}
+		needLock = false
+		t.WriteRTP(packet.Payload)
+	}
+}
+func (t *RTPDumpPublisher) WriteRTP(raw []byte) {
 	var frame common.RTPFrame
-				frame.Unmarshal(packet.Payload)
+	frame.Unmarshal(raw)
+	switch frame.PayloadType {
+	case 96:
 		t.VideoTrack.WriteRTP(&util.ListItem[common.RTPFrame]{Value: frame})
-			}
-			// t.AudioTrack.WriteRTP(packet)
-		}
+	case 97:
+		t.AudioTrack.WriteRTP(&util.ListItem[common.RTPFrame]{Value: frame})
+	default:
+		t.Stream.Warn("RTPDumpPublisher unknown payload type", zap.Uint8("payloadType", frame.PayloadType))
 	}
 }
--- a/subscriber.go
+++ b/subscriber.go
@@ -5,6 +5,7 @@ import (
 	"io"
 	"net"
 	"strconv"
+	"time"

 	"go.uber.org/zap"
 	"m7s.live/engine/v4/codec"
@@ -206,11 +207,11 @@ func (s *Subscriber) PlayBlock(subType byte) {
 	case SUBTYPE_RAW:
 		sendVideoFrame = func(frame *AVFrame) {
 			// println("v", frame.Sequence, frame.AbsTime, s.VideoReader.AbsTime, frame.IFrame)
-			spesic.OnEvent(VideoFrame{frame, s.Video, s.VideoReader.AbsTime, frame.PTS - s.VideoReader.SkipRTPTs, frame.DTS - s.VideoReader.SkipRTPTs})
+			spesic.OnEvent(VideoFrame{frame, s.Video, s.VideoReader.AbsTime, s.VideoReader.GetPTS32(), s.VideoReader.GetDTS32()})
 		}
 		sendAudioFrame = func(frame *AVFrame) {
 			// println("a", frame.Sequence, frame.AbsTime, s.AudioReader.AbsTime)
-			spesic.OnEvent(AudioFrame{frame, s.Audio, s.AudioReader.AbsTime, frame.PTS - s.AudioReader.SkipRTPTs, frame.PTS - s.AudioReader.SkipRTPTs})
+			spesic.OnEvent(AudioFrame{frame, s.Audio, s.AudioReader.AbsTime, s.AudioReader.GetPTS32(), s.AudioReader.GetDTS32()})
 		}
 	case SUBTYPE_RTP:
 		var videoSeq, audioSeq uint16
@@ -218,7 +219,9 @@ func (s *Subscriber) PlayBlock(subType byte) {
 			// fmt.Println("v", frame.Sequence, frame.AbsTime, s.VideoReader.AbsTime, frame.IFrame)
 			frame.RTP.Range(func(vp RTPFrame) bool {
 				videoSeq++
-				vp.Header.Timestamp = vp.Header.Timestamp - s.VideoReader.SkipRTPTs
+				copy := *vp.Packet
+				vp.Packet = &copy
+				vp.Header.Timestamp = vp.Header.Timestamp - uint32(s.VideoReader.SkipTs*90/time.Millisecond)
 				vp.Header.SequenceNumber = videoSeq
 				spesic.OnEvent((VideoRTP)(vp))
 				return true
@@ -229,8 +232,10 @@ func (s *Subscriber) PlayBlock(subType byte) {
 			// fmt.Println("a", frame.Sequence, frame.AbsTime, s.AudioReader.AbsTime)
 			frame.RTP.Range(func(ap RTPFrame) bool {
 				audioSeq++
+				copy := *ap.Packet
+				ap.Packet = &copy
 				ap.Header.SequenceNumber = audioSeq
-				ap.Header.Timestamp = ap.Header.Timestamp - s.AudioReader.Track.MpegTs2RTPTs(s.AudioReader.SkipRTPTs)
+				ap.Header.Timestamp = ap.Header.Timestamp - uint32(s.AudioReader.SkipTs/time.Millisecond*time.Duration(s.AudioReader.Track.SampleRate)/1000)
 				spesic.OnEvent((AudioRTP)(ap))
 				return true
 			})
@@ -254,7 +259,7 @@ func (s *Subscriber) PlayBlock(subType byte) {
 			sendFlvFrame(codec.FLV_TAG_TYPE_AUDIO, s.AudioReader.AbsTime, s.AudioReader.Track.SequenceHead)
 		}
 		sendVideoFrame = func(frame *AVFrame) {
-			// println(frame.Sequence, s.VideoReader.AbsTime, frame.DeltaTime, frame.IFrame)
+			// fmt.Println(frame.Sequence, s.VideoReader.AbsTime, frame.DeltaTime, frame.IFrame)
 			// b := util.Buffer(frame.AVCC.ToBytes()[5:])
 			// for b.CanRead() {
 			// 	nalulen := int(b.ReadUint32())
@@ -278,7 +283,7 @@ func (s *Subscriber) PlayBlock(subType byte) {
 		subMode, _ = strconv.Atoi(s.Args.Get(conf.SubModeArgName))
 	}
 	var videoFrame, audioFrame *AVFrame
-	var lastAbsTime uint32
+	var lastAbsTime time.Duration

 	for ctx.Err() == nil {
 		if hasVideo {
@@ -295,17 +300,18 @@ func (s *Subscriber) PlayBlock(subType byte) {
 				}
 				if hasAudio {
 					if audioFrame != nil {
-						if frame.AbsTime > lastAbsTime {
+						if frame.Timestamp > lastAbsTime {
 							// fmt.Println("switch audio", audioFrame.CanRead)
 							if audioFrame.CanRead {
 								sendAudioFrame(audioFrame)
 							}
+							audioFrame = nil
 							videoFrame = frame
-							lastAbsTime = frame.AbsTime
+							lastAbsTime = frame.Timestamp
 							break
 						}
 					} else if lastAbsTime == 0 {
-						if lastAbsTime = frame.AbsTime; lastAbsTime != 0 {
+						if lastAbsTime = frame.Timestamp; lastAbsTime != 0 {
 							videoFrame = frame
 							break
 						}
@@ -330,7 +336,6 @@ func (s *Subscriber) PlayBlock(subType byte) {
 				case track.READSTATE_NORMAL:
 					if s.Video != nil {
 						s.AudioReader.SkipTs = s.VideoReader.SkipTs
-						s.AudioReader.SkipRTPTs = s.AudioReader.Track.Ms2MpegTs(s.AudioReader.SkipTs)
 					}
 				}
 				s.AudioReader.Read(ctx, subMode)
@@ -344,17 +349,18 @@ func (s *Subscriber) PlayBlock(subType byte) {
 					sendAudioDecConf()
 				}
 				if hasVideo && videoFrame != nil {
-					if frame.AbsTime > lastAbsTime {
+					if frame.Timestamp > lastAbsTime {
 						// fmt.Println("switch video", videoFrame.CanRead)
 						if videoFrame.CanRead {
 							sendVideoFrame(videoFrame)
 						}
+						videoFrame = nil
 						audioFrame = frame
-						lastAbsTime = frame.AbsTime
+						lastAbsTime = frame.Timestamp
 						break
 					}
 				}
-				if frame.AbsTime >= s.AudioReader.SkipTs {
+				if frame.Timestamp >= s.AudioReader.SkipTs {
 					sendAudioFrame(frame)
 				} else {
 					// fmt.Println("skip audio", frame.AbsTime, s.AudioReader.SkipTs)
--- a/track/base.go
+++ b/track/base.go
@@ -11,20 +11,20 @@ import (
 )

 type 流速控制 struct {
-	起始时间戳 uint32
-	起始时间  time.Time
+	起始时间戳 time.Duration
 	等待上限  time.Duration
+	起始时间  time.Time
 }

-func (p *流速控制) 重置(绝对时间戳 uint32) {
+func (p *流速控制) 重置(绝对时间戳 time.Duration) {
 	p.起始时间 = time.Now()
 	p.起始时间戳 = 绝对时间戳
 	// println("重置", p.起始时间.Format("2006-01-02 15:04:05"), p.起始时间戳)
 }
-func (p *流速控制) 时间戳差(绝对时间戳 uint32) time.Duration {
-	return time.Duration(绝对时间戳-p.起始时间戳) * time.Millisecond
+func (p *流速控制) 时间戳差(绝对时间戳 time.Duration) time.Duration {
+	return 绝对时间戳 - p.起始时间戳
 }
-func (p *流速控制) 控制流速(绝对时间戳 uint32) {
+func (p *流速控制) 控制流速(绝对时间戳 time.Duration) {
 	数据时间差, 实际时间差 := p.时间戳差(绝对时间戳), time.Since(p.起始时间)
 	// println("数据时间差", 数据时间差, "实际时间差", 实际时间差, "绝对时间戳", 绝对时间戳, "起始时间戳", p.起始时间戳, "起始时间", p.起始时间.Format("2006-01-02 15:04:05"))
 	// if 实际时间差 > 数据时间差 {
@@ -83,10 +83,9 @@ type Media struct {
 	RtpPool         util.Pool[RTPFrame] `json:"-"`
 	SequenceHead    []byte              `json:"-"` //H264(SPS、PPS) H265(VPS、SPS、PPS) AAC(config)
 	SequenceHeadSeq int
-	RTPMuxer
 	RTPDemuxer
 	SpesificTrack `json:"-"`
-	deltaTs       int64 //用于接续发布后时间戳连续
+	deltaTs       time.Duration //用于接续发布后时间戳连续
 	流速控制
 }

@@ -103,20 +102,6 @@ func (av *Media) GetRTPFromPool() (result *util.ListItem[RTPFrame]) {
 	return
 }

-// 毫秒转换为Mpeg时间戳
-func (av *Media) Ms2MpegTs(ms uint32) uint32 {
-	return uint32(uint64(ms) * 90)
-}
-
-// Mpeg时间戳转换为毫秒
-func (av *Media) MpegTs2Ms(mpegTs uint32) uint32 {
-	return uint32(uint64(mpegTs) / 90)
-}
-
-func (av *Media) MpegTs2RTPTs(mpegTs uint32) uint32 {
-	return uint32(uint64(mpegTs) * uint64(av.SampleRate) / 90000)
-}
-
 // 为json序列化而计算的数据
 func (av *Media) SnapForJson() {
 	v := av.LastValue
@@ -158,7 +143,7 @@ func (av *Media) SetStuff(stuff ...any) {
 }

 func (av *Media) LastWriteTime() time.Time {
-	return av.LastValue.Timestamp
+	return av.LastValue.WriteTime
 }

 // func (av *Media) Play(ctx context.Context, onMedia func(*AVFrame) error) error {
@@ -180,8 +165,8 @@ func (av *Media) PreFrame() *AVFrame {
 }

 func (av *Media) generateTimestamp(ts uint32) {
-	av.Value.PTS = ts
-	av.Value.DTS = ts
+	av.Value.PTS = time.Duration(ts)
+	av.Value.DTS = time.Duration(ts)
 }

 func (av *Media) WriteSequenceHead(sh []byte) {
@@ -221,17 +206,17 @@ func (av *Media) Flush() {
 	curValue, preValue, nextValue := &av.Value, av.LastValue, av.Next()
 	if av.State == TrackStateOffline {
 		av.State = TrackStateOnline
-		av.deltaTs = int64(preValue.AbsTime) - int64(curValue.AbsTime) + int64(preValue.DeltaTime)
+		av.deltaTs = preValue.Timestamp - curValue.Timestamp + time.Duration(preValue.DeltaTime)*time.Millisecond
 		av.Info("track back online")
 	}
 	if av.deltaTs != 0 {
-		rtpts := int64(av.deltaTs) * 90
-		curValue.DTS = uint32(int64(curValue.DTS) + rtpts)
-		curValue.PTS = uint32(int64(curValue.PTS) + rtpts)
-		curValue.AbsTime = 0
+		rtpts := av.deltaTs * 90 / 1000
+		curValue.DTS = curValue.DTS + rtpts
+		curValue.PTS = curValue.PTS + rtpts
+		curValue.Timestamp = 0
 	}
 	bufferTime := av.Stream.GetPublisherConfig().BufferTime
-	if bufferTime > 0 && av.IDRingList.Length > 1 && time.Duration(curValue.AbsTime-av.IDRingList.Next.Next.Value.Value.AbsTime)*time.Millisecond > bufferTime {
+	if bufferTime > 0 && av.IDRingList.Length > 1 && curValue.Timestamp-av.IDRingList.Next.Next.Value.Value.Timestamp > bufferTime {
 		av.ShiftIDR()
 		av.narrow(int(curValue.Sequence - av.HistoryRing.Value.Sequence))
 	}
@@ -247,17 +232,17 @@ func (av *Media) Flush() {

 	if av.起始时间.IsZero() {
 		curValue.DeltaTime = 0
-		if curValue.AbsTime == 0 {
-			curValue.AbsTime = uint32(time.Since(av.Stream.GetStartTime()).Milliseconds())
+		if curValue.Timestamp == 0 {
+			curValue.Timestamp = time.Since(av.Stream.GetStartTime())
 		}
-		av.重置(curValue.AbsTime)
-	} else if curValue.AbsTime == 0 {
-		curValue.DeltaTime = (curValue.DTS - preValue.DTS) / 90
-		curValue.AbsTime = preValue.AbsTime + curValue.DeltaTime
+		av.重置(curValue.Timestamp)
 	} else {
-		curValue.DeltaTime = curValue.AbsTime - preValue.AbsTime
+		if curValue.Timestamp == 0 {
+			curValue.Timestamp = (preValue.Timestamp*90 + (curValue.DTS-preValue.DTS)*time.Millisecond) / 90
 		}
-	// fmt.Println(av.Name, curValue.DTS, curValue.AbsTime, curValue.DeltaTime)
+		curValue.DeltaTime = uint32((curValue.Timestamp - preValue.Timestamp) / time.Millisecond)
+	}
+	// fmt.Println(av.Name, curValue.DTS, curValue.Timestamp, curValue.DeltaTime)
 	if curValue.AUList.Length > 0 {
 		// 补完RTP
 		if config.Global.EnableRTP && curValue.RTP.Length == 0 {
@@ -270,7 +255,7 @@ func (av *Media) Flush() {
 	}
 	av.Base.Flush(&curValue.BaseFrame)
 	if av.等待上限 > 0 {
-		av.控制流速(curValue.AbsTime)
+		av.控制流速(curValue.Timestamp)
 	}
 	preValue = curValue
 	curValue = av.MoveNext()
--- a/track/data.go
+++ b/track/data.go
@@ -22,7 +22,7 @@ func (d *Data) ReadRing() *LockRing[any] {
 }

 func (d *Data) LastWriteTime() time.Time {
-	return d.LockRing.RingBuffer.LastValue.Timestamp
+	return d.LockRing.RingBuffer.LastValue.WriteTime
 }

 func (dt *Data) Push(data any) {
--- a/track/h264.go
+++ b/track/h264.go
@@ -32,8 +32,11 @@ func (vt *H264) WriteSliceBytes(slice []byte) {
 	// vt.Info("naluType", zap.Uint8("naluType", naluType.Byte()))
 	switch naluType {
 	case codec.NALU_SPS:
-		vt.SPSInfo, _ = codec.ParseSPS(slice)
-		vt.Debug("SPS", zap.Any("SPSInfo", vt.SPSInfo))
+		spsInfo, _ := codec.ParseSPS(slice)
+		if spsInfo.Width != vt.SPSInfo.Width || spsInfo.Height != vt.SPSInfo.Height {
+			vt.Debug("SPS", zap.Any("SPSInfo", spsInfo))
+		}
+		vt.SPSInfo = spsInfo
 		vt.Video.SPS = slice
 		vt.ParamaterSets[0] = slice
 	case codec.NALU_PPS:
@@ -132,20 +135,17 @@ func (vt *H264) WriteRTPFrame(frame *RTPFrame) {
 			}
 		}
 	}
-	frame.SequenceNumber += vt.rtpSequence //增加偏移，需要增加rtp包后需要顺延
-	if frame.Marker {
+	if frame.Marker && rv.AUList.ByteLength > 0 {
 		vt.generateTimestamp(frame.Timestamp)
+		if !vt.dcChanged && rv.IFrame {
+			vt.insertDCRtp()
+		}
 		vt.Flush()
 	}
 }

 // RTP格式补完
 func (vt *H264) CompleteRTP(value *AVFrame) {
-	if value.RTP.Length > 0 {
-		if !vt.dcChanged && value.IFrame {
-			vt.insertDCRtp()
-		}
-	} else {
 	var out [][][]byte
 	if value.IFrame {
 		out = append(out, [][]byte{vt.SPS}, [][]byte{vt.PPS})
@@ -172,4 +172,3 @@ func (vt *H264) CompleteRTP(value *AVFrame) {
 	})
 	vt.PacketizeRTP(out...)
 }
-}
--- a/track/h265.go
+++ b/track/h265.go
@@ -38,7 +38,11 @@ func (vt *H265) WriteSliceBytes(slice []byte) {
 	case codec.NAL_UNIT_SPS:
 		vt.SPS = slice
 		vt.ParamaterSets[1] = slice
-		vt.SPSInfo, _ = codec.ParseHevcSPS(slice)
+		spsInfo, _ := codec.ParseHevcSPS(slice)
+		if spsInfo.Width != vt.SPSInfo.Width || spsInfo.Height != vt.SPSInfo.Height {
+			vt.Debug("SPS", zap.Any("SPSInfo", spsInfo))
+		}
+		vt.SPSInfo = spsInfo
 	case codec.NAL_UNIT_PPS:
 		vt.PPS = slice
 		vt.ParamaterSets[2] = slice
@@ -112,6 +116,9 @@ func (vt *H265) WriteRTPFrame(frame *RTPFrame) {
 			}
 		}
 	case codec.NAL_UNIT_RTP_FU:
+		if !buffer.CanReadN(3) {
+			return
+		}
 		first3 := buffer.ReadN(3)
 		fuHeader := first3[2]
 		if usingDonlField {
@@ -120,24 +127,23 @@ func (vt *H265) WriteRTPFrame(frame *RTPFrame) {
 		if naluType := fuHeader & 0b00111111; util.Bit1(fuHeader, 0) {
 			vt.WriteSliceByte(first3[0]&0b10000001|(naluType<<1), first3[1])
 		}
+		if rv.AUList.Pre != nil {
 			rv.AUList.Pre.Value.Push(vt.BytesPool.GetShell(buffer))
+		}
 	default:
 		vt.WriteSliceBytes(frame.Payload)
 	}
-	frame.SequenceNumber += vt.rtpSequence //增加偏移，需要增加rtp包后需要顺延
 	if frame.Marker {
 		vt.generateTimestamp(frame.Timestamp)
+		if !vt.dcChanged && rv.IFrame {
+			vt.insertDCRtp()
+		}
 		vt.Flush()
 	}
 }

 // RTP格式补完
 func (vt *H265) CompleteRTP(value *AVFrame) {
-	if value.RTP.Length > 0 {
-		if !vt.dcChanged && value.IFrame {
-			vt.insertDCRtp()
-		}
-	} else {
 	// H265打包： https://blog.csdn.net/fanyun_01/article/details/114234290
 	var out [][][]byte
 	if value.IFrame {
@@ -165,4 +171,3 @@ func (vt *H265) CompleteRTP(value *AVFrame) {
 	}
 	vt.PacketizeRTP(out...)
 }
-}
--- a/track/reader-av.go
+++ b/track/reader-av.go
@@ -23,14 +23,14 @@ type AVRingReader struct {
 	Poll       time.Duration
 	State      byte
 	FirstSeq   uint32
-	FirstTs    uint32
-	SkipTs     uint32
-	SkipRTPTs  uint32
-	beforeJump uint32
+	FirstTs    time.Duration
+	SkipTs     time.Duration //ms
+	beforeJump time.Duration
 	ConfSeq    int
 	startTime  time.Time
 	Frame      *common.AVFrame
 	AbsTime    uint32
+	Delay      uint32
 	*zap.Logger
 }

@@ -96,12 +96,11 @@ func (r *AVRingReader) Read(ctx context.Context, mode int) (err error) {
 		}
 		r.startTime = time.Now()
 		if r.FirstTs == 0 {
-			r.FirstTs = r.Frame.AbsTime
+			r.FirstTs = r.Frame.Timestamp
 		}
 		r.SkipTs = r.FirstTs
-		r.SkipRTPTs = r.Track.Ms2MpegTs(r.SkipTs)
 		r.FirstSeq = r.Frame.Sequence
-		r.Info("first frame read", zap.Uint32("firstTs", r.FirstTs), zap.Uint32("firstSeq", r.FirstSeq))
+		r.Info("first frame read", zap.Duration("firstTs", r.FirstTs), zap.Uint32("firstSeq", r.FirstSeq))
 	case READSTATE_FIRST:
 		if r.Track.IDRing.Value.Sequence != r.FirstSeq {
 			r.Ring = r.Track.IDRing
@@ -109,14 +108,13 @@ func (r *AVRingReader) Read(ctx context.Context, mode int) (err error) {
 			if err = r.ctx.Err(); err != nil {
 				return
 			}
-			r.SkipTs = frame.AbsTime - r.beforeJump
-			r.SkipRTPTs = r.Track.Ms2MpegTs(r.SkipTs)
-			r.Info("jump", zap.Uint32("skipSeq", r.Track.IDRing.Value.Sequence-r.FirstSeq), zap.Uint32("skipTs", r.SkipTs))
+			r.SkipTs = frame.Timestamp - r.beforeJump
+			r.Info("jump", zap.Uint32("skipSeq", r.Track.IDRing.Value.Sequence-r.FirstSeq), zap.Duration("skipTs", r.SkipTs))
 			r.State = READSTATE_NORMAL
 		} else {
 			r.MoveNext()
 			frame := r.ReadFrame()
-			r.beforeJump = frame.AbsTime - r.FirstTs
+			r.beforeJump = frame.Timestamp - r.FirstTs
 			// 防止过快消费
 			if fast := time.Duration(r.beforeJump)*time.Millisecond - time.Since(r.startTime); fast > 0 && fast < time.Second {
 				time.Sleep(fast)
@@ -126,12 +124,18 @@ func (r *AVRingReader) Read(ctx context.Context, mode int) (err error) {
 		r.MoveNext()
 		r.ReadFrame()
 	}
-	r.AbsTime = r.Frame.AbsTime - r.SkipTs
+	r.AbsTime = uint32((r.Frame.Timestamp - r.SkipTs).Milliseconds())
+	r.Delay = uint32((r.Track.LastValue.Timestamp - r.Frame.Timestamp).Milliseconds())
 	// println(r.Track.Name, r.State, r.Frame.AbsTime, r.SkipTs, r.AbsTime)
 	return
 }
-
+func (r *AVRingReader) GetPTS32() uint32 {
+	return uint32((r.Frame.PTS - r.SkipTs * 90 / time.Millisecond))
+}
+func (r *AVRingReader) GetDTS32() uint32 {
+	return uint32((r.Frame.DTS - r.SkipTs * 90 / time.Millisecond))
+}
 func (r *AVRingReader) ResetAbsTime() {
-	r.SkipTs = r.Frame.AbsTime
+	r.SkipTs = r.Frame.Timestamp
 	r.AbsTime = 0
 }
--- a/track/rtp.go
+++ b/track/rtp.go
@@ -1,6 +1,8 @@
 package track

 import (
+	"time"
+
 	"github.com/pion/rtp"
 	"go.uber.org/zap"
 	. "m7s.live/engine/v4/common"
@@ -40,15 +42,13 @@ func (av *Media) WriteRTP(raw *util.ListItem[RTPFrame]) {
 func (av *Media) PacketizeRTP(payloads ...[][]byte) {
 	packetCount := len(payloads)
 	for i, pp := range payloads {
-		av.rtpSequence++
 		rtpItem := av.GetRTPFromPool()
 		packet := &rtpItem.Value
 		packet.Payload = packet.Payload[:0]
-		packet.SequenceNumber = av.rtpSequence
 		if av.SampleRate != 90000 {
-			packet.Timestamp = uint32(uint64(av.SampleRate) * uint64(av.Value.PTS) / 90000)
+			packet.Timestamp = uint32(time.Duration(av.SampleRate) * av.Value.PTS / 90000)
 		} else {
-			packet.Timestamp = av.Value.PTS
+			packet.Timestamp = uint32(av.Value.PTS)
 		}
 		packet.Marker = i == packetCount-1
 		for _, p := range pp {
@@ -85,7 +85,3 @@ func (av *RTPDemuxer) recorderRTP(item *util.ListItem[RTPFrame]) (frame *util.Li
 	av.lastSeq = frame.Value.SequenceNumber
 	return
 }
-
-type RTPMuxer struct {
-	rtpSequence uint16 //用于生成下一个rtp包的序号
-}
--- a/track/video.go
+++ b/track/video.go
@@ -4,6 +4,9 @@ import (

 	// . "github.com/logrusorgru/aurora"

+	"time"
+
+	"github.com/pion/rtp"
 	"go.uber.org/zap"
 	"m7s.live/engine/v4/codec"
 	"m7s.live/engine/v4/common"
@@ -95,8 +98,8 @@ func (vt *Video) WriteNalu(pts uint32, dts uint32, nalu []byte) {
 	if dts == 0 {
 		vt.generateTimestamp(pts)
 	} else {
-		vt.Value.PTS = pts
-		vt.Value.DTS = dts
+		vt.Value.PTS = time.Duration(pts)
+		vt.Value.DTS = time.Duration(dts)
 	}
 	vt.Value.BytesIn += len(nalu)
 	vt.WriteSliceBytes(nalu)
@@ -106,8 +109,8 @@ func (vt *Video) WriteAnnexB(pts uint32, dts uint32, frame []byte) {
 	if dts == 0 {
 		vt.generateTimestamp(pts)
 	} else {
-		vt.Value.PTS = pts
-		vt.Value.DTS = dts
+		vt.Value.PTS = time.Duration(pts)
+		vt.Value.DTS = time.Duration(dts)
 	}
 	vt.Value.BytesIn += len(frame)
 	common.SplitAnnexB(frame, vt.writeAnnexBSlice, codec.NALU_Delimiter2)
@@ -130,8 +133,8 @@ func (vt *Video) WriteAVCC(ts uint32, frame *util.BLL) (e error) {
 	if err != nil {
 		return err
 	}
-	vt.Value.PTS = vt.Ms2MpegTs(ts + cts)
-	vt.Value.DTS = vt.Ms2MpegTs(ts)
+	vt.Value.PTS = time.Duration(ts+cts) * 90
+	vt.Value.DTS = time.Duration(ts) * 90
 	// println(":", vt.Value.Sequence)
 	var nalulen uint32
 	for nalulen, e = r.ReadBE(vt.nalulenSize); e == nil; nalulen, e = r.ReadBE(vt.nalulenSize) {
@@ -184,28 +187,21 @@ func (vt *Video) WriteSliceByte(b ...byte) {
 // 在I帧前面插入sps pps webrtc需要
 func (vt *Video) insertDCRtp() {
 	head := vt.Value.RTP.Next
-	seq := head.Value.SequenceNumber
 	for _, nalu := range vt.ParamaterSets {
-		var packet RTPFrame
+		var packet rtp.Packet
 		packet.Version = 2
 		packet.PayloadType = vt.PayloadType
 		packet.Payload = nalu
 		packet.SSRC = vt.SSRC
-		packet.Timestamp = vt.Value.PTS
+		packet.Timestamp = uint32(vt.Value.PTS)
 		packet.Marker = false
-		head.InsertBeforeValue(packet)
-		vt.rtpSequence++
+		head.InsertBeforeValue(RTPFrame{&packet, nil})
 	}
-	vt.Value.RTP.RangeItem(func(item *util.ListItem[RTPFrame]) bool {
-		item.Value.SequenceNumber = seq
-		seq++
-		return true
-	})
 }

 func (vt *Video) generateTimestamp(ts uint32) {
-	vt.Value.PTS = ts
-	vt.Value.DTS = vt.dtsEst.Feed(ts)
+	vt.Value.PTS = time.Duration(ts)
+	vt.Value.DTS = time.Duration(vt.dtsEst.Feed(ts))
 }

 func (vt *Video) SetLostFlag() {
@@ -222,7 +218,7 @@ func (vt *Video) CompleteAVCC(rv *AVFrame) {
 	b[1] = 1
 	// println(rv.PTS < rv.DTS, "\t", rv.PTS, "\t", rv.DTS, "\t", rv.PTS-rv.DTS)
 	// 写入CTS
-	util.PutBE(b[2:5], vt.MpegTs2Ms(rv.PTS-rv.DTS))
+	util.PutBE(b[2:5], (rv.PTS-rv.DTS)/90)
 	rv.AVCC.Push(mem)
 	// if rv.AVCC.ByteLength != 5 {
 	// 	panic("error")