<mime-type type="image/heif-sequence">
    <_comment>HEIF Sequence - High Efficiency Image Sequence</_comment>
    <magic priority="60">
      <match value="ftypmsf1" type="string" offset="4"/>
    </magic>
    <sub-class-of type="video/quicktime" />
  </mime-type>

  <mime-type type="image/heic">
    <alias   type="image/hevc"/>
    <_comment>HEIF Image using HEVC Codec</_comment>
    <acronym>HEIC</acronym>