code: function m3u8(playlist) {
    return reader(playlist).reduce(function (streams, url, i, pl) {
      if (is_url(url)) {
        const stream = pl[i - 1]
  
        if ( typeof stream == 'object' && stream[TAG_STREAM] && typeof stream[TAG_STREAM] == 'object' ) {
          streams.push( Object.assign({url}, stream[TAG_STREAM]) )
        }
      }
  
      return streams
    }, [])
  }
docs: Parser
  @param {String} playlist
  @return {Array.<{url: string}>}