cnpm install videostream --save

<video ref="myvideo" controls autoplay="autoplay" width="90%" ></video>

import VideoStream from 'videostream'
Play(hash){
  //得到视频hash播放
  let that = this
  let stream
  new VideoStream({
    createReadStream: function createReadStream (opts) {
      const start = opts.start
      const end = opts.end ? start + opts.end + 1 : undefined
      // If we've streamed before, clean up the existing stream
      if (stream && stream.destroy) {
        stream.destroy()
      }
      // This stream will contain the requested bytes
      stream = that.ipfs.catReadableStream(hash,  {
        offset: start,
        length: end && end - start})
      stream.on('error', (error) => console.log(error))
      return stream
    }
  }, that.$refs.myvideo)
},