View difference between Paste ID: rnY7x3Bc and 10m52zED

 function convert(input, output, callback) {
   if (debug) {
     console.log("CONVERTING");
     console.log("IN: " + input);
     console.log("OUT: " + output);
   }
   ffmpeg(input)
     // Adding a logo watermark
     .input("clipdrop_logo.png")
     // Set the logo positions
     .complexFilter([
         "overlay=main_w-overlay_w-50:main_h-overlay_h-50",
     ])
     .outputOptions([
       "-loglevel panic",
       "-preset veryfast",
       "-movflags faststart",
       "-vf scale=-1:480",
       "-c:v libx264",
       "-crf 23",
       "-c:a aac",
       "-bitrate 2000000",
       "-maxrate 2200000",
       "-bufsize 1500000"
     ])
     .on("end", function () {
       if (debug) {
         console.log("conversion ended");
       }
       callback(null);
     })
     .on("error", function (err) {
       if (debug) {
         console.log("error x: ", err);
       }
       callback(err);
     })
     .saveToFile(output);
 }