isHevcSupported () {
    if (typeof MediaSource === 'undefined' || !MediaSource.isTypeSupported) {
      return false
    }
    return (
      MediaSource.isTypeSupported('video/mp4;codecs="hev1.1.6.L120.90"') ||
      MediaSource.isTypeSupported('video/mp4;codecs="hev1.2.4.L120.90"') ||
      MediaSource.isTypeSupported('video/mp4;codecs="hev1.3.E.L120.90"') ||
      MediaSource.isTypeSupported('video/mp4;codecs="hev1.4.10.L120.90"')
    )
  }
Is HEVC Hardware decoding supported by current browser
@returns {boolean}