Make ffmpeg map metadata

src/ffmpeg.js

@@ -67,6 +67,7 @@ async function cut(customOutDir, filePath, format, cutFrom, cutTo, onProgress) {
   const ffmpegArgs = [
     '-i', filePath, '-y', '-vcodec', 'copy', '-acodec', 'copy',
     '-ss', cutFrom, '-t', cutTo - cutFrom,
+    '-map_metadata', '0',
     '-f', format,
     outPath,
   ];