diff --git a/go.mod b/go.mod
index f87fc765..7ed5cb0a 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@ require (
 	github.com/atrox/haikunatorgo/v2 v2.0.1
 	github.com/caddyserver/certmagic v0.23.0
 	github.com/datarhei/gosrt v0.9.0
-	github.com/datarhei/joy4 v0.0.0-20240603190808-b1407345907e
+	github.com/datarhei/joy4 v0.0.0-20250806135534-393d6bb11439
 	github.com/dolthub/swiss v0.2.1
 	github.com/fujiwara/shapeio v1.0.0
 	github.com/go-playground/validator/v10 v10.27.0
diff --git a/go.sum b/go.sum
index dc78996a..493d07dd 100644
--- a/go.sum
+++ b/go.sum
@@ -50,8 +50,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.7 h1:zbFlGlXEAKlwXpmvle3d8Oe3YnkKIK4xSRTd3
 github.com/cpuguy83/go-md2man/v2 v2.0.7/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/datarhei/gosrt v0.9.0 h1:FW8A+F8tBiv7eIa57EBHjtTJKFX+OjvLogF/tFXoOiA=
 github.com/datarhei/gosrt v0.9.0/go.mod h1:rqTRK8sDZdN2YBgp1EEICSV4297mQk0oglwvpXhaWdk=
-github.com/datarhei/joy4 v0.0.0-20240603190808-b1407345907e h1:Qc/0D4xvXrazFkoi/4UGqO15yQ1JN5I8h7RwdzCLgTY=
-github.com/datarhei/joy4 v0.0.0-20240603190808-b1407345907e/go.mod h1:Jcw/6jZDQQmPx8A7INEkXmuEF7E9jjBbSTfVSLwmiQw=
+github.com/datarhei/joy4 v0.0.0-20250806135534-393d6bb11439 h1:8HMGWtglP1I23Qd4PLLeDthkLY2Ye67ePW5zY61v+Hs=
+github.com/datarhei/joy4 v0.0.0-20250806135534-393d6bb11439/go.mod h1:Jcw/6jZDQQmPx8A7INEkXmuEF7E9jjBbSTfVSLwmiQw=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
diff --git a/vendor/github.com/datarhei/joy4/av/pubsub/queue.go b/vendor/github.com/datarhei/joy4/av/pubsub/queue.go
index 70e6cfa2..37510c78 100644
--- a/vendor/github.com/datarhei/joy4/av/pubsub/queue.go
+++ b/vendor/github.com/datarhei/joy4/av/pubsub/queue.go
@@ -46,7 +46,6 @@ func (self *Queue) SetMaxGopCount(n int) {
 	self.lock.Lock()
 	self.maxgopcount = n
 	self.lock.Unlock()
-	return
 }
 
 func (self *Queue) WriteHeader(streams []av.CodecData) error {
@@ -85,17 +84,34 @@ func (self *Queue) WritePacket(pkt av.Packet) (err error) {
 	self.lock.Lock()
 
 	self.buf.Push(pkt)
-	if pkt.Idx == int8(self.videoidx) && pkt.IsKeyFrame {
-		self.curgopcount++
-	}
 
-	for self.curgopcount >= self.maxgopcount && self.buf.Count > 1 {
-		pkt := self.buf.Pop()
-		if pkt.Idx == int8(self.videoidx) && pkt.IsKeyFrame {
-			self.curgopcount--
+	if self.videoidx == -1 { // audio only stream
+		if pkt.IsKeyFrame {
+			self.curgopcount++
 		}
-		if self.curgopcount < self.maxgopcount {
-			break
+
+		for self.curgopcount >= self.maxgopcount && self.buf.Count > 1 {
+			pkt := self.buf.Pop()
+			if pkt.IsKeyFrame {
+				self.curgopcount--
+			}
+			if self.curgopcount < self.maxgopcount {
+				break
+			}
+		}
+	} else { // video only or video+audio stream
+		if pkt.Idx == int8(self.videoidx) && pkt.IsKeyFrame {
+			self.curgopcount++
+		}
+
+		for self.curgopcount >= self.maxgopcount && self.buf.Count > 1 {
+			pkt := self.buf.Pop()
+			if pkt.Idx == int8(self.videoidx) && pkt.IsKeyFrame {
+				self.curgopcount--
+			}
+			if self.curgopcount < self.maxgopcount {
+				break
+			}
 		}
 	}
 
diff --git a/vendor/github.com/datarhei/joy4/format/aac/aac.go b/vendor/github.com/datarhei/joy4/format/aac/aac.go
index 911df0a4..c4ab41a4 100644
--- a/vendor/github.com/datarhei/joy4/format/aac/aac.go
+++ b/vendor/github.com/datarhei/joy4/format/aac/aac.go
@@ -3,11 +3,12 @@ package aac
 import (
 	"bufio"
 	"fmt"
+	"io"
+	"time"
+
 	"github.com/datarhei/joy4/av"
 	"github.com/datarhei/joy4/av/avutil"
 	"github.com/datarhei/joy4/codec/aacparser"
-	"io"
-	"time"
 )
 
 type Muxer struct {
diff --git a/vendor/github.com/datarhei/joy4/format/flv/flv.go b/vendor/github.com/datarhei/joy4/format/flv/flv.go
index a99a9dd3..5b2a8eaf 100644
--- a/vendor/github.com/datarhei/joy4/format/flv/flv.go
+++ b/vendor/github.com/datarhei/joy4/format/flv/flv.go
@@ -279,15 +279,18 @@ func (prober *Prober) TagToPacket(tag flvio.Tag, timestamp int32) (pkt av.Packet
 			case flvio.AAC_RAW:
 				ok = true
 				pkt.Data = tag.Data
+				pkt.IsKeyFrame = true
 			}
 
 		case flvio.SOUND_SPEEX:
 			ok = true
 			pkt.Data = tag.Data
+			pkt.IsKeyFrame = true
 
 		case flvio.SOUND_NELLYMOSER:
 			ok = true
 			pkt.Data = tag.Data
+			pkt.IsKeyFrame = true
 		}
 	}
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 07844690..8e22e093 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -78,7 +78,7 @@ github.com/datarhei/gosrt/crypto
 github.com/datarhei/gosrt/net
 github.com/datarhei/gosrt/packet
 github.com/datarhei/gosrt/rand
-# github.com/datarhei/joy4 v0.0.0-20240603190808-b1407345907e
+# github.com/datarhei/joy4 v0.0.0-20250806135534-393d6bb11439
 ## explicit; go 1.14
 github.com/datarhei/joy4/av
 github.com/datarhei/joy4/av/avutil