Qy hexaclue

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

Nearest Normal Aspect Ratio

This function returns the nearest aspect ratio of a width and height within a limited range of possible aspect ratios.

In other words, while 649x360 technically has an aspect ratio of 649:360, it’s often useful to know that the nearest normal aspect ratio is actually 9:5 (648x360).

nearestNormalAspectRatio(width, height, [side], [maxWidth], [maxHeight])

	#include <stdio.h>
	#include <stdint.h>
	// Philips Sonicare NFC Head Password calculation by @atc1441 Video manual: https://www.youtube.com/watch?v=EPytrn8i8sc
	uint16_t CRC16(uint16_t crc, uint8_t *buffer, int len) // Default CRC16 Algo
	{
	while(len--)
	{
	crc ^= *buffer++ << 8;
	int bits = 0;
	do

	/*
	* m1cat: a proof of concept for the M1RACLES vulnerability in the Apple M1.
	*
	* This program implements a covert channel that can be used to transmit data
	* between two processes when run on the Apple Silicon "M1" CPUs.
	*
	* The channel is slightly lossy due to (presumably) the scheduler sometimes
	* scheduling us on the wrong CPU cluster, so this PoC sends every byte twice
	* together with some metadata/framing bits, which is usually good enough.
	* A better approach would be to use proper FEC or something like that.

	/**
	* Generates a check digit from a partial EAN13.
	*
	* https://www.gs1.org/services/how-calculate-check-digit-manually
	*
	* @param {string} barcode - 12 digit EAN13 barcode without the check digit
	*/
	function checkDigitEAN13(barcode) {
	const sum = barcode.split('')
	.map((n, i) => n * (i % 2 ? 3 : 1)) // alternate between multiplying with 3 and 1

	from moviepy.editor import *
	import numpy as np
	clip = VideoFileClip("hams.mkv")
	import sounddevice as sd
	import soundfile as sf
	from queue import Queue
	from collections import OrderedDict
	import pprint
	pp = pprint.PrettyPrinter(indent=4)
	print('started')

	$(document).on('drop', function (e) {
	e.stopPropagation();
	e.preventDefault();
	$("body").removeClass("drop");

	var files = e.originalEvent.dataTransfer.files;
	//console.log(files[0]);
	new BinaryLoader(files[0], function (archive) {
	console.log(archive);
	if (archive != null) {

	/*
	* This work is free. You can redistribute it and/or modify it under the
	* terms of the Do What The Fuck You Want To Public License, Version 2,
	* as published by Sam Hocevar. See the COPYING file for more details.
	*/
	/*
	* Easing Functions - inspired from http://gizma.com/easing/
	* only considering the t value for the range [0, 1] => [0, 1]
	*/
	EasingFunctions = {