text: import Box from '../box'
  import Stream from '../stream'
  
  Box.co64 = function () {
    let stream = new Stream(this.data)
    this.version = stream.readUint8()
    this.flag = Stream.readByte(stream.dataview, 3)
    this.count = stream.readUint32()
    let entries = []
    this.entries = entries
    for (let i = 0, count = this.count; i < count; i++) {
      entries.push(stream.readUint64())
    }
    delete this.subBox
    delete this.data
    stream = null
  }
  