From 35425cfaa788b9119e1515f9491ca0d1c18f7767 Mon Sep 17 00:00:00 2001
From: jcdr428 <56721609+jcdr428@users.noreply.github.com>
Date: Tue, 3 Mar 2026 16:03:34 +0400
Subject: [PATCH] Add null check for packet payload before adding

TSPacket payload can be null.

See e.g. ABC.ts from https://tsduck.io/streams/?stream=australia-dttv
---
 TtxFromTS/DVB/PESFactory.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/TtxFromTS/DVB/PESFactory.cs b/TtxFromTS/DVB/PESFactory.cs
index b538b4f..ed5f47e 100644
--- a/TtxFromTS/DVB/PESFactory.cs
+++ b/TtxFromTS/DVB/PESFactory.cs
@@ -38,7 +38,10 @@ public class PESFactory
             // If we have an elementary stream packet, add the packet and decode the PES if it is complete
             if (_elementaryStreamPacket != null)
             {
-                _elementaryStreamPacket.Add(packet);
+                if (packet.Payload != null)
+                {
+                    _elementaryStreamPacket.Add(packet);    
+                }
                 if (_elementaryStreamPacket.HasAllBytes())
                 {
                     _elementaryStreamPacket.Decode();