billautomata

Convert MOV to GIF using FFmpeg and ImageMagick

I tried a few different techniques to make a GIF via command-line and the following gives me the best control of quality and size. Once you're all setup, you'll be pumping out GIFs in no time!

Preparation

Install FFmpeg

• $ brew install ffmpeg [all your options]
  • Example: $ brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-frei0r --with-libass --with-libvo-aacenc --with-libvorbis --with-libvpx --with-opencore-amr --with-openjpeg --with-opus --with-rtmpdump --with-schroedinger --with-speex --with-theora --with-tools

Install ImageMagick

billautomata

1. compile ffmpeg for arm https://github.com/fiorix/ffmpeg-arm
2. create youtube 'live event'. get rtmp url + session id
3. run this:

raspivid -o - -t 0 -vf -hf -fps 30 -b 6000000 | ffmpeg -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -f h264 -i - -vcodec copy -acodec aac -ab 128k -g 50 -strict experimental -f flv rtmp://a.rtmp.youtube.com/live2/<SESSION>

you can tweak -b and -fps to your liking. the settings above work well for 1080p. by not specifying width or height we get the full 1920x1080 resolution from the raspi camera

billautomata

#!/bin/sh
# install :
# curl -o installer.sh https://gist.github.com/iNem0o/6346423/raw && chmod +x installer.sh && sudo ./installer.sh

sudo apt-get update
sudo apt-get --no-install-recommends -y install git cmake libusb-1.0-0-dev libpulse-dev libx11-dev screen qt4-qmake libtool autoconf automake libfftw3-dev

mkdir ~/src

echo "Installation de rtl_sdr"

billautomata

import bpy
from bpy_extras.view3d_utils import location_3d_to_region_2d as loc3d2d

import os


def write_svg(edge_list, region):

    width, height =  region.width, region.height

billautomata

billautomata

#!/bin/sh

# Based on instructions found here: http://wiki.razuna.com/display/ecp/FFMpeg+Installation+on+CentOS+and+RedHat#FFMpegInstallationonCentOSandRedHat-InstallX264

if [ "`/usr/bin/whoami`" != "root" ]; then
    echo "You need to execute this script as root."
    exit 1
fi

cat > /etc/yum.repos.d/centos.repo<<EOF

billautomata

{
  "targets": [
    {
      "target_name": "keypress",
      "conditions": [
	      ['OS == "mac"', {
		      'include_dirs': [
		          'System/Library/Frameworks/CoreFoundation.Framework/Headers',
		          'System/Library/Frameworks/Carbon.Framework/Headers',
		        ],

billautomata

{
	"name": "streamingtest",
	"version": "0.0.1",
	"engines": {
		"node": ">=0.6.0"
	},
	"dependencies": {
		"express": "2.5.x",
		"coffee-script": "1.2.x"
	},

billautomata

var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
function base64_decode(input){
    var output = new Array();
    var chr1, chr2, chr3;
    var enc1, enc2, enc3, enc4;
    var i = 0;

    var orig_input = input;
    input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
    if (orig_input != input)

billautomata

// Ported from Stefan Gustavson's java implementation
// http://staffwww.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf
// Read Stefan's excellent paper for details on how this code works.
//
// Sean McCullough banksean@gmail.com

/**
 * You can pass in a random number generator object if you like.
 * It is assumed to have a random() method.
 */