diff --git a/internal/core/rtsp_source_test.go b/internal/core/rtsp_source_test.go
index 11c148a2..5809bb4d 100644
--- a/internal/core/rtsp_source_test.go
+++ b/internal/core/rtsp_source_test.go
@@ -221,6 +221,7 @@ func TestRTSPSourceDynamicH264Params(t *testing.T) {
 	require.NoError(t, err)
 
 	stream := gortsplib.NewServerStream(gortsplib.Tracks{track})
+	defer stream.Close()
 
 	s := gortsplib.Server{
 		Handler: &testServer{
@@ -268,6 +269,8 @@ func TestRTSPSourceDynamicH264Params(t *testing.T) {
 	require.NoError(t, err)
 	stream.WritePacketRTP(0, pkts[0], true)
 
+	time.Sleep(1 * time.Second)
+
 	func() {
 		c := gortsplib.Client{}
 
diff --git a/internal/hls/client_test.go b/internal/hls/client_test.go
index 0ccbb578..ac3d8f3c 100644
--- a/internal/hls/client_test.go
+++ b/internal/hls/client_test.go
@@ -218,7 +218,11 @@ func TestClient(t *testing.T) {
 					return nil
 				},
 				func(pts time.Duration, nalus [][]byte) {
-					require.Equal(t, [][]byte{{0x05}}, nalus)
+					require.Equal(t, [][]byte{
+						{7, 1, 2, 3},
+						{8},
+						{0x05},
+					}, nalus)
 					close(packetRecv)
 				},
 				func(pts time.Duration, aus [][]byte) {
diff --git a/internal/hls/muxer_test.go b/internal/hls/muxer_test.go
index 2d69bc2c..73534553 100644
--- a/internal/hls/muxer_test.go
+++ b/internal/hls/muxer_test.go
@@ -33,10 +33,9 @@ func TestMuxerVideoAudio(t *testing.T) {
 
 	// group with IDR
 	err = m.WriteH264(2*time.Second, [][]byte{
-		{5}, // IDR
-		{9}, // AUD
-		{8}, // PPS
 		{7}, // SPS
+		{8}, // PPS
+		{5}, // IDR
 	})
 	require.NoError(t, err)
 
@@ -124,8 +123,8 @@ func TestMuxerVideoAudio(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, &astits.Packet{
 		AdaptationField: &astits.PacketAdaptationField{
-			Length:                145,
-			StuffingLength:        138,
+			Length:                148,
+			StuffingLength:        141,
 			HasPCR:                true,
 			PCR:                   &astits.ClockReference{},
 			RandomAccessIndicator: true,
@@ -140,7 +139,7 @@ func TestMuxerVideoAudio(t *testing.T) {
 			0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x80,
 			0x05, 0x21, 0x00, 0x03, 0x5f, 0x91,
 			0, 0, 0, 1, 9, 240, // AUD
-			0, 0, 0, 1, 7, 1, 2, 3, // SPS
+			0, 0, 0, 1, 7, // SPS
 			0, 0, 0, 1, 8, // PPS
 			0, 0, 0, 1, 5, // IDR
 		}, bytes.Repeat([]byte{0xff}, 0)...),