Tim Billström timbillstrom

Install Golang 1.9:

wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /usr/local -xzf go1.9.linux-armv6l.tar.gz
export PATH=$PATH:/usr/local/go/bin # put into ~/.profile

If already installed old golang with apt-get:

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

	var isoCountries = {
	'AF' : 'Afghanistan',
	'AX' : 'Aland Islands',
	'AL' : 'Albania',
	'DZ' : 'Algeria',
	'AS' : 'American Samoa',
	'AD' : 'Andorra',
	'AO' : 'Angola',
	'AI' : 'Anguilla',
	'AQ' : 'Antarctica',

	Each YouTube video has 4 generated images. They are predictably formatted as follows:

	http://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
	http://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
	http://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
	http://img.youtube.com/vi/<insert-youtube-video-id-here>/3.jpg

	The first one in the list is a full size image and others are thumbnail images. The default thumbnail image (ie. one of 1.jpg, 2.jpg, 3.jpg) is:

	http://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg

	<?xml version="1.0" encoding="utf-8"?>
	<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
	<item>
	<shape android:shape="rectangle"
	android:dither="true">

	<corners android:radius="2dp"/>

	<solid android:color="#ccc" />

	def resize_nocrop_noscale(image, w,h)
	w_original = image[:width].to_f
	h_original = image[:height].to_f

	if w_original < w && h_original < h
	return image
	end

	# resize
	image.resize("#{w}x#{h}")