text: import Box from '../box'
  import Stream from '../stream'
  
  Box.esds = function () {
    let stream = new Stream(this.data)
    this.version = stream.readUint8()
    this.flag = Stream.readByte(stream.dataview, 3)
    let box = Box.MP4ESDescrTag(stream)
    this.subBox.push(box)
    delete this.data
    stream = null
  }
  