Config key for backup muxing

Code/IO/Config.cs

@@ -284,6 +284,7 @@ namespace Flowframes.IO
             allowSymlinkEncoding,
             allowSymlinkImport,
             autoDedupFrames,
+            autoEncBackup,
             autoEncDebug,
             autoEncMode,
             autoEncSafeBufferFlavrCuda,

Code/Main/CreateVideo.cs

@@ -163,6 +163,9 @@ namespace Flowframes.Main
 
         public static async Task ChunksToVideos(string tempFolder, string chunksFolder, string baseOutPath, bool isBackup = false)
         {
+            if (isBackup && !Config.GetBool(Config.Key.autoEncBackup))
+                return;
+
             if (IOUtils.GetAmountOfFiles(chunksFolder, true, "*" + FFmpegUtils.GetExt(I.current.outMode)) < 1)
             {
                 I.Cancel("No video chunks found - An error must have occured during chunk encoding!", AiProcess.hasShownError);