From 3c6cb1fb436889938ce0b0da1a621d47ad27f6e0 Mon Sep 17 00:00:00 2001
From: Malte Rosenbjerg <rosenbjerg@users.noreply.github.com>
Date: Mon, 27 Oct 2025 20:49:35 +0100
Subject: [PATCH] Throw if CancellationToken passed to CancellableThrough is
 not already cancelled

---
 FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs b/FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs
index 8191223..b1bd3da 100644
--- a/FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs
+++ b/FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs
@@ -85,6 +85,7 @@ public class FFMpegArgumentProcessor
 
     public FFMpegArgumentProcessor CancellableThrough(CancellationToken token, int timeout = 0)
     {
+        token.ThrowIfCancellationRequested();
         _cancellationTokenRegistration?.Dispose();
         _cancellationTokenRegistration = token.Register(() => Cancel(timeout));
         return this;