Mark Avenius mavenius

FFmpeg Cheat Sheet for 360º video

Brought to you by Headjack

FFmpeg is one of the most powerful tools for video transcoding and manipulation, but it's fairly complex and confusing to use. That's why I decided to create this cheat sheet which shows some of the most often used commands.

Let's start with some basics:

ffmpeg calls the FFmpeg application in the command line window, could also be the full path to the FFmpeg binary or .exe file

This is a minimal /etc/ssl/openssl.cnf supporting legacy algorithms on modern openssl installations where it is disabled by default.

The marked (######) lines should be added to your openssl.cnf (other parts may be unchanged).

For checking if legacy providers are enabled successfully:

$ openssl list -providers
Providers:

	#!/bin/bash
	#
	# Bash must have been compiled with this ability: --enable-net-redirections
	# The device files below do not actually exist.
	# Use /dev/udp for UDP sockets

	exec 3<>/dev/tcp/host/port

	# Write to the socket as with any file descriptor
	echo "Write this to the socket" >&3

	#HOWTO Run Sia host on Ubuntu server
	#Updated: 13 august, 2016
	#Tested with Sia 1.0.2 and Ubuntu 16.04

	#Update 13.08.2016: Changed from using supervisor to systemd

	# Create user `siad`
	adduser siad
	su siad

	#!/usr/bin/python
	# Adapted from original written by Bob Steinbeiser (https://medium.com/@xtalker)

	import socket
	import struct
	import binascii

	def tide_button(arp_detailed):
	dest_ip = socket.inet_ntoa(arp_detailed[8])
	print 'Tide button pressed, IP = ' + dest_ip

	from pydhcplib.dhcp_network import *

	def do_something():
	print("button has been pressed")


	netopt = {'client_listen_port':"68", 'server_listen_port':"67", 'listen_address':"0.0.0.0"}

	class Server(DhcpServer):
	def __init__(self, options, dashbuttons):

	using System;
	using System.Runtime.Serialization;

	namespace MyTool
	{
	[Serializable]
	internal class CommandLineException : Exception
	{
	public CommandLineException()
	{

	#include <WiFi.h>
	#include <ESPmDNS.h>
	#include <WiFiUdp.h>
	#include <ArduinoOTA.h>


	const char* ssid = "WIFI_SSID";
	const char* password = "WIFI_PASSWORD";

	const char * udpAddress = "192.168.10.6"; //IP TO SEND UDP Packets with Reading. (UDP so there is no need of a connection state)