kadamwhite

ffmpeg cheat-sheet

Video

Compressing x265

ffmpeg -i INPUT_FILE.mkv -c copy -pix_fmt yuv420p10le -c:v libx265 -crf 28 -x265-params profile=main10 OUTPUT_FILE.mkv

kadamwhite

/**
 * This file defines the project-level Webpack production configuration. It
 * combines configs from all relevant plugins and themes into one single
 * array (a "multi-configuration" Webpack setup) and runs those builds in
 * a single pass.
 */
const { basename, extname } = require( 'path' );

const postcss = require( 'postcss' );
const filtermq = require( 'postcss-filter-mq' );

kadamwhite

#/usr/bin/env bash

# Usage:
#
# Run this script (via an npm run alias) with no arguments to compute the
# issues in files changed since you branched from "development."
#
#     npm run lint:php:changed
#
# Pass a specific branch name as the first argument to determine which files

kadamwhite

const equalPoint = ( x1, y1, x2, y2 ) => ( x1 === x2 && y1 === y2 );

const sum = nums => nums.reduce( ( sum, num ) => sum + num, 0 );

// See https://stackoverflow.com/questions/9043805/test-if-two-lines-intersect-javascript-function
const linesIntersect = ( x1, y1, x2, y2, x3, y3, x4, y4 ) => {
	if (
		equalPoint( x1, y1, x3, y3 ) ||
		equalPoint( x1, y1, x4, y4 ) ||
		equalPoint( x2, y2, x3, y3 ) ||

kadamwhite

#!/usr/bin/env node

const { match } = require('assert');
const { parse } = require('path');
const readline = require('readline');
const { getContainers, matchContainerByURL } = require( '/home/kadam/bin/get-docker-ips' );

// Figure out if we asked for a certain number of events, or else show the 20 most recent.
const [ , , flag, val ] = process.argv;
let eventCount = 20;

kadamwhite

#!/usr/bin/env node

const child_process = require( 'child_process' );

/**
 * Execute a command as a spawned process.
 *
 * @param {String}   command A bash command string, excluding arguments.
 * @param {String[]} args    An array of argument strings for the provided command.
 */

kadamwhite

// PREREQUISITES!
//
// 1. Plug in the controller before running sketch
// 2. Follow the steps below once to download the Game Control Plus library 
//
// In the "Sketch" menu in Processing's menubar, go to
//    Sketch > Import Library > Add Library
// Then search for "Game Control". You should find a library called "Game Control Plus";
// install it and let Processing download all the files.
//

kadamwhite

#!/usr/bin/env bash

MODE="$1"
if [ $MODE = "on" ]; then
    v4l2-ctl -d /dev/video0 --set-ctrl=saturation=0,contrast=190,brightness=105
elif [ $MODE = "off" ]; then
    v4l2-ctl -d /dev/video0 --set-ctrl=saturation=128,contrast=128,brightness=120
fi

kadamwhite

#!/usr/bin/env node

/*
This script will clip a segment of a video file into a gif, using techniques
described in these resources:

https://engineering.giphy.com/how-to-make-gifs-with-ffmpeg/
https://video.stackexchange.com/questions/4563/how-can-i-crop-a-video-with-ffmpeg
https://askubuntu.com/questions/648603/how-to-create-an-animated-gif-from-mp4-video-via-command-line
https://trac.ffmpeg.org/wiki/HowToBurnSubtitlesIntoVideo

kadamwhite

float fillColor;

void setup() {
  size(300, 200);
  background(255, 255, 255);
  fill(0, 0, 0);
  
  // Draw one bar graph on the left, starting from the bottom and working clockwise
  //===============================================================================