ring 功能修复

audio_track.go

@@ -129,6 +129,7 @@ func (at *AudioTrack) push(pack *AudioPack) {
 		at.bytes = 0
 		at.ts = pack.Timestamp
 	}
+	at.lastTs = pack.Timestamp
 	at.Step()
 }
 

base_track.go

@@ -16,7 +16,6 @@ type Track interface {
 
 type AVPack interface {
 	Since(uint32) uint32
-	Distance(int) int
 }
 
 type BasePack struct {
@@ -30,10 +29,6 @@ func (p *BasePack) Since(ts uint32) uint32 {
 	return p.Timestamp - ts
 }
 
-func (p *BasePack) Distance(sq int) int {
-	return p.Sequence - sq
-}
-
 type Track_Base struct {
 	RingDisposable `json:"-"`
 	Stream         *Stream `json:"-"`
@@ -42,6 +37,7 @@ type Track_Base struct {
 	BPS            int
 	bytes          int    // GOP内的数据大小
 	ts             uint32 // GOP起始时间戳
+	lastTs         uint32 //最新的时间戳
 }
 
 func (t *Track_Base) GetBPS() {

subscriber.go

@@ -85,7 +85,7 @@ func (s *Subscriber) Play(at *AudioTrack, vt *VideoTrack) {
 	}
 	vr := vt.SubRing(vt.IDRing) //从关键帧开始读取，首屏秒开
 	ar := at.Clone()
-	dropping := false //是否处于丢帧中
+	// dropping := false //是否处于丢帧中
 	vp := vr.Read().(*VideoPack)
 	ap := ar.Read().(*AudioPack)
 	startTimestamp := vp.Timestamp
@@ -97,23 +97,25 @@ func (s *Subscriber) Play(at *AudioTrack, vt *VideoTrack) {
 			return
 		default:
 			if ap.Timestamp > vp.Timestamp || ap.Timestamp == 0 {
-				if !dropping {
 				s.OnVideo(vp.Copy(startTimestamp))
-					if vt.CurrentValue().(AVPack).Since(vp.Timestamp) > 1000 {
+				// if !dropping {
-						dropping = true
+				// 	s.OnVideo(vp.Copy(startTimestamp))
-					}
+				// 	if vt.lastTs - vp.Timestamp > 1000 {
-				} else if vp.IDR {
+				// 		dropping = true
-					dropping = false
+				// 	}
-				}
+				// } else if vp.IDR {
+				// 	dropping = false
+				// }
 				vr.MoveNext()
 				vp = vr.Read().(*VideoPack)
 			} else {
-				if !dropping {
 				s.OnAudio(ap.Copy(startTimestamp))
-					if at.CurrentValue().(AVPack).Since(ap.Timestamp) > 1000 {
+				// if !dropping {
-						dropping = true
+				// 	s.OnAudio(ap.Copy(startTimestamp))
-					}
+				// 	if at.CurrentValue().(AVPack).Since(ap.Timestamp) > 1000 {
-				}
+				// 		dropping = true
+				// 	}
+				// }
 				ar.MoveNext()
 				ap = ar.Read().(*AudioPack)
 			}
@@ -128,14 +130,14 @@ func (s *Subscriber) PlayAudio(at *AudioTrack) {
 	droped := 0
 	var action, send func()
 	drop := func() {
-		if at.CurrentValue().(AVPack).Distance(ap.Sequence) < 4 {
+		if at.current().Sequence-ap.Sequence < 4 {
 			action = send
 		} else {
 			droped++
 		}
 	}
 	send = func() {
-		if s.OnAudio(ap.Copy(startTimestamp)); at.CurrentValue().(AVPack).Since(ap.Timestamp) > 1000 {
+		if s.OnAudio(ap.Copy(startTimestamp)); at.lastTs -ap.Timestamp > 1000 {
 			action = drop
 		}
 	}
@@ -179,7 +181,7 @@ func (s *Subscriber) PlayVideo(vt *VideoTrack) {
 		}
 	}
 	send = func() {
-		if s.OnVideo(vp.Copy(startTimestamp)); vt.CurrentValue().(AVPack).Since(vp.Timestamp) > 1000 {
+		if s.OnVideo(vp.Copy(startTimestamp)); vt.lastTs - vp.Timestamp > 1000 {
 			action = drop
 		}
 	}

video_track.go

@@ -34,7 +34,6 @@ func (vp VideoPack) Copy(ts uint32) VideoPack {
 
 type VideoTrack struct {
 	IDRing *ring.Ring //最近的关键帧位置，首屏渲染
-	lastIDR *VideoPack
 	Track_Base
 	SPSInfo         codec.SPSInfo
 	GOP             int             //关键帧间隔
@@ -59,21 +58,25 @@ func (s *Stream) NewVideoTrack(codec byte) (vt *VideoTrack) {
 	vt = &VideoTrack{
 		revIDR: func() {
 			vt.IDRing = vt.Ring
-			vt.lastIDR = vt.CurrentValue().(*VideoPack)
 			cancel()
+			idrSequence := vt.current().Sequence
+			l := vt.Ring.Len()
 			vt.revIDR = func() {
-				current := vt.CurrentValue().(*VideoPack)
+				current := vt.current()
-				vt.GOP = current.Distance(vt.lastIDR.Sequence)
+				if vt.GOP = current.Sequence - idrSequence; vt.GOP > l-1 {
-				if l := vt.Ring.Len(); vt.IDRing.Value != vt.lastIDR {
 					//缓冲环不够大，导致IDR被覆盖
 					exRing := NewRingBuffer(vt.GOP - l + 5).Ring
 					exRing.Do(vt.initVideoRing)
 					vt.Link(exRing) // 扩大缓冲环
+					l = vt.Ring.Len()
+					utils.Printf("%s ring grow to %d", s.StreamPath, l)
 				} else if vt.GOP < l-5 {
 					vt.Unlink(l - vt.GOP - 5) //缩小缓冲环节省内存
+					l = vt.Ring.Len()
+					utils.Printf("%s ring atrophy to %d", s.StreamPath, l)
 				}
 				vt.IDRing = vt.Ring
-				vt.lastIDR = current
+				idrSequence = current.Sequence
 				vt.ts = current.Timestamp
 				vt.bytes = 0
 			}
@@ -492,15 +495,17 @@ func (vt *VideoTrack) pushByteStream(ts uint32, payload []byte) {
 		}
 		// 已完成序列帧组装，重置Push函数，从Payload中提取Nalu供非bytestream格式使用
 		vt.PushByteStream = func(ts uint32, payload []byte) {
-			pack := vt.CurrentValue().(*VideoPack)
+			pack := vt.current()
 			if len(payload) < 4 {
 				return
 			}
 			vt.bytes += len(payload)
+			pack.IDR = payload[0]>>4 == 1
 			pack.Timestamp = ts
 			pack.Sequence = vt.PacketCount
 			pack.Payload = payload
 			pack.CompositionTime = utils.BigEndian.Uint24(payload[2:])
+			pack.NALUs = nil
 			for nalus := payload[5:]; len(nalus) > nalulenSize; {
 				nalulen := 0
 				for i := 0; i < nalulenSize; i++ {
@@ -522,9 +527,9 @@ func (vt *VideoTrack) push(pack *VideoPack) {
 		vt.writeByteStream(pack)
 	}
 	vt.GetBPS()
-	pack.Sequence = vt.PacketCount
+	if pack.Sequence = vt.PacketCount; pack.IDR {
-	if pack.IDR {
+		vt.revIDR()
-		defer vt.revIDR()
 	}
+	vt.lastTs = pack.Timestamp
 	vt.Step()
 }