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Arne Roomann-Kurrik kurrik

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kurrik / ffmpeg_convert.sh
Last active January 8, 2019 15:48
ffmpeg recipes
# Convert `mymovie.mp4` to `mymovie.mov`, re-encoding.
ffmpeg -i mymovie.mp4 mymovie.mov
# Change `mymovie.mov` to `mymovie.mp4`, without re-encoding.
ffmpeg -i mymovie.mov -vcodec copy -acodec copy mymovie.mp4
# Change `mymovie.mp4` to `mymovie-nosound.mp4`, dropping audio and re-encoding video to H.264 high quality
ffmpeg -i mymovie.mp4 -c:v libx264 -profile:v high -an mymovie-nosound.mp4
# Resize `mymovie.mp4` to `mymovie-480.mp4`, setting width to 480px and keeping aspect ratio
@kurrik
kurrik / .vimrc
Created May 10, 2014 01:09
Set up :Fmt command to autoformat JavaScript files in Vim
" JavaScript formatting.
" Install https://github.com/rdio/jsfmt - npm install -g jsfmt
function! Jsformat()
let regel=line(".")
%!jsfmt --format=true
call cursor(regel, 1)
endfunction
autocmd BufRead,BufNewFile *.js setfiletype javascript
autocmd Filetype javascript command! Fmt call Jsformat()
@kurrik
kurrik / queryparams.js
Created April 16, 2014 00:16
EC5 querystring parsing in the most obnoxiously functional way possible
var queryparams = (window.location.href.split("?")[1] || "")
.split("&")
.map(function(param) {
return param.split("=")
.map(function(part) { return decodeURIComponent(part); });
})
.reduceRight(function(prev, curr) {
if (curr.length == 2) { prev[curr[0]] = curr[1]; }
return prev;
},{});
@kurrik
kurrik / paste.js
Last active August 29, 2015 13:58
Paste in Chrome addressbar and add "javascript:" to the front to enable resizing of textareas on the page
Array.prototype.forEach.call(document.querySelectorAll('textarea'), function(el) { el.setAttribute('style', 'resize: vertical');});
@kurrik
kurrik / manifest.json
Created March 31, 2014 17:13
Including embedded Tweets in a Google Chrome extension
{
"manifest_version": 2,
"name": "crx-widgetsjs",
"description": "Load Twitter's widgets.js in a Chrome extension",
"version": "1.0",
"permissions": [
],
"browser_action": {
@kurrik
kurrik / twitter_ssl.rb
Created March 21, 2013 17:02
Demonstrating that Ruby sends invalid HTTPS requests unless use_ssl is explicitly set
require 'net/https'
# Returns {"errors":[{"message":"Bad Authentication data","code":215}]}
# Issues a HTTPS request to: GET https://api.twitter.com/1.1/users/show.json?user_id=33978
# Prints: Explicit SSL: #<Net::HTTPBadRequest:0x10b65f188>
uri = URI.parse("https://api.twitter.com/1.1/users/show.json?user_id=33978")
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_PEER
request = Net::HTTP::Get.new(uri.request_uri)
@kurrik
kurrik / input-time.js
Created October 8, 2012 17:12
Insert a time input into Twitter
document.body.appendChild(function() { var e = document.createElement("input"); e.type="time"; e.style.position="absolute"; e.style.top="0px"; e.style.left="0px"; e.style.zIndex="1000"; return e; }())
@kurrik
kurrik / anim.go
Created August 27, 2012 02:11
My favorite code from this weekend
// I couldn't have come up with this sober / well rested
const (
FACING_LEFT = 1 << iota
FACING_RIGHT = 1 << iota
PLAYER_STOPPED = 1 << iota
PLAYER_WALKING = 1 << iota
PLAYER_JUMPING = 1 << iota
)
a := map[int]*Animation{
@kurrik
kurrik / negate-bitmask.go
Created August 26, 2012 10:13
How to negate bits in a bitmask in Go
package main
import "fmt"
func main() {
foo := 4 | 2 | 16
foo &= (511 ^ 4)
fmt.Printf("%b", foo)
}
@kurrik
kurrik / proxy.sh
Created June 1, 2012 23:11
Proxy HTTPS requests through http://localhost:8080
#!/bin/bash
# From http://en.wikipedia.org/wiki/Netcat
# Proxy HTTPS requests through http://localhost:8080
# That way, Wireshark can sniff the traffic.
# Example usage:
# ./proxy.sh www.twitter.com
mkfifo tmp
mkfifo tmp2
nc -k -l 8080 > tmp < tmp2 &