long candy ready to test

framework/Inspectron.Fastbuffer/Filesystems/DirectFilesystem.cs

@@ -1,15 +1,17 @@
 using Inspectron.Fastbuffer.Interfaces;
+using OpenCvSharp;
 using Serilog;
 
 namespace Inspectron.Fastbuffer.Filesystems;
 
 public class DirectFilesystem:IFilesystem
 {
-    public void Write(string path, byte[] data)
+    public void Write(string path, Mat data)
     {
         // ensure path
         Directory.CreateDirectory(Path.GetDirectoryName(path));
-        File.WriteAllBytes(path, data);
+        var bytes = data.ToBytes();
+        File.WriteAllBytes(path, bytes);
     }
 
     public byte[] Read(string path)