From 9e7807ba5ce9c1b78be585856aab2cfbc79dfa41 Mon Sep 17 00:00:00 2001
From: Adrian Cable <6544927+adriancable@users.noreply.github.com>
Date: Mon, 16 Oct 2023 10:25:26 -0700
Subject: [PATCH] Do not send empty NACK packets

---
 pkg/nack/generator_interceptor.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/nack/generator_interceptor.go b/pkg/nack/generator_interceptor.go
index c476acc9..051e424c 100644
--- a/pkg/nack/generator_interceptor.go
+++ b/pkg/nack/generator_interceptor.go
@@ -191,6 +191,10 @@ func (n *GeneratorInterceptor) loop(rtcpWriter interceptor.RTCPWriter) {
 						}
 					}
 
+					if len(filteredMissing) == 0 {
+						continue
+					}
+
 					if _, err := rtcpWriter.Write([]rtcp.Packet{nack}, interceptor.Attributes{}); err != nil {
 						n.log.Warnf("failed sending nack: %+v", err)
 					}