mervick

Catalina VirtualBox Setup

Setting up macOS/OSX Catalina for VirtualBox enabling 256MB of VRAM.

Install

Using the myspaghetti macos-guest-virtualbox github repo.

git clone [email protected]:myspaghetti/macos-guest-virtualbox.git

cd macos-guest-virtualbox

mervick

/**
 * @author mrdoob / http://mrdoob.com/
 * @author supereggbert / http://www.paulbrunt.co.uk/
 * @author julianwa / https://github.com/julianwa
 */

THREE.RenderableObject = function () {

	this.id = 0;

mervick

/**
* strtr() for JavaScript
* Translate characters or replace substrings
*
* @author Dmitry Sheiko 
* @version strtr.js, v 1.0.1 
* @license MIT
* @copyright (c) Dmitry Sheiko http://dsheiko.com
**/

mervick

fun hashAndSavePasswordHash(context: Context, clearPassword: String) {
    val digest = MessageDigest.getInstance("SHA-1")
    val result = digest.digest(clearPassword.toByteArray(Charsets.UTF_8))
    val sb = StringBuilder()
    for (b in result) {
        sb.append(String.format("%02X", b))
    }
    val hashedPassword = sb.toString()
    val sharedPref = PreferenceManager.getDefaultSharedPreferences(context)
    val editor = sharedPref.edit()

mervick

require "openssl"
require "digest"

def aes128_cbc_encrypt(key, data, iv)
  key = Digest::MD5.digest(key) if(key.kind_of?(String) && 16 != key.bytesize)
  iv = Digest::MD5.digest(iv) if(iv.kind_of?(String) && 16 != iv.bytesize)
  aes = OpenSSL::Cipher.new('AES-128-CBC')
  aes.encrypt
  aes.key = key
  aes.iv = iv

mervick

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

mervick

If your running a x64 bit Ubuntu or other Linux and find USB transfers hang at the end apply this fix:

echo $((16*1024*1024)) > /proc/sys/vm/dirty_background_bytes
echo $((48*1024*1024)) > /proc/sys/vm/dirty_bytes

I suggest you edit your /etc/rc.local file to make this change persistant across reboots.

sudo nano /etc/rc.local

mervick

##Create a git repo with a central repository server.

Step 1: Connect to server, create a new, empty directory there and initialize an empty repository.

$ ssh server.com
Last login ...
Welcome to server.com!
> mkdir myrepo.git 
> cd myrepo.git

> git --bare init

mervick

::-moz-placeholder {
  color: red;
  font-weight: 300;
  padding-top: 5px;
}

::-webkit-input-placeholder {
  color: red;
  font-weight: 300;
  padding-top: 5px;

mervick

//Cross browser CSS3 mixins

@mixin box-shadow($left, $top, $radius, $color) {
	box-shadow: $left $top $radius $color;
	-webkit-box-shadow: $left $top $radius $color;
	-moz-box-shadow: $left $top $radius $color;
}

@mixin transition($property, $duration, $easing: linear) {
	transition: $property $duration $easing;