From 6bcbf54ea16e64d391d9a79691ced71b76991a41 Mon Sep 17 00:00:00 2001
From: Raja Subramanian <raja.gobi@tutanota.com>
Date: Wed, 24 Dec 2025 04:10:11 +0530
Subject: [PATCH] Always instantiate nacker when using out-of-band sequence
 numbers. (#4187)

---
 pkg/sfu/buffer/buffer_base.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/sfu/buffer/buffer_base.go b/pkg/sfu/buffer/buffer_base.go
index 2d5b1b1b4..211ac7b40 100644
--- a/pkg/sfu/buffer/buffer_base.go
+++ b/pkg/sfu/buffer/buffer_base.go
@@ -386,6 +386,10 @@ func (b *BufferBase) BindLocked(rtpParameters webrtc.RTPParameters, codec webrtc
 		}
 	}
 
+	if b.nacker == nil && b.params.IsOOBSequenceNumber {
+		b.nacker = nack.NewNACKQueue(nack.NackQueueParamsDefault)
+	}
+
 	b.StartKeyFrameSeeder()
 
 	return nil