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nongio-zz / webm.md
Last active August 29, 2015 14:08 — forked from ndarville/webm.md

Grab ffmpeg from https://www.ffmpeg.org/download.html

It's a command line tool which means you will have to type things with your keyboard instead of clicking on buttons.

The most trivial operation would be converting gifs:

ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.webm
  • -crf values can go from 4 to 63. Lower values mean better quality.
  • -b:v is the maximum allowed bitrate. Higher means better quality.
mat4 rotationMatrix(vec3 axis, float angle)
{
axis = normalize(axis);
float s = sin(angle);
float c = cos(angle);
float oc = 1.0 - c;
return mat4(oc * axis.x * axis.x + c, oc * axis.x * axis.y - axis.z * s, oc * axis.z * axis.x + axis.y * s, 0.0,
oc * axis.x * axis.y + axis.z * s, oc * axis.y * axis.y + c, oc * axis.y * axis.z - axis.x * s, 0.0,
oc * axis.z * axis.x - axis.y * s, oc * axis.y * axis.z + axis.x * s, oc * axis.z * axis.z + c, 0.0,
References:
http://blog.carbonfive.com/2012/02/27/supporting-cross-domain-ajax-in-rails-using-jsonp-and-cors/
https://github.com/cyu/rack-cors
http://nelm.io/blog/2011/11/cors-with-sencha-touch/
http://jessehowarth.com/2011/04/27/ajax-login-with-devise
=============================================================================================================
GEMFILE
=============================================================================================================
gem 'rack-cors', :require => 'rack/cors'
#!/usr/bin/env bash
# Some things taken from here
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
# Ask for the administrator password upfront
sudo -v
# Keep-alive: update existing `sudo` time stamp until `.osx` has finished
while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &