let durationSecond = 60 // video duration
let transmuxer = new muxjs.mp4.Transmuxer({
keepOriginalTimestamps: true,
duration: durationSecond,
});
let durationSecond = 60 // video duration
let transmuxer = new muxjs.mp4.Transmuxer({
keepOriginalTimestamps: true,
duration: durationSecond,
});