Michael Wagner ILadis

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

GBA Link Cable fun!

Cable pinout

/ ---	T-T	--- \	/ ---	T-T	--- \
1	3	5	`3v`	`SI`	`SC`
2	4	6	`SO`	`SD`	`GND`
\ ---	---	--- /	\ ---	---	--- /

(Note: this is the cable pinout, flip diagram horizontally to visualise GBA port instead)

Compiling GBA programs on Linux with GCC

There is a strange lack of guides and tools online for compiling Gameboy Advance homebrew programs on Linux. I didn't want to use devkitpro - their installation method of requiring you to use a forked version of pacman is extemely strange and I didn't want to install all of that on my system just to complile some programs.

The only other guides I found for Linux were this one and this one which both involve compiling custom versions of GCC and assosicated libraries. This lead me down a road of pain, after spending multiple hours fixing compiler errors only to create new errors I gave up. I thought that their had to be a simpler way, and there is!

The solution

Debian already has a version of GCC that can compile ARM programs in the repos, no manual compiling necessary! The package is called arm-none-eabi-gcc.

A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1

	#EXTM3U
	#EXTINF:-1,ARD
	https://daserste-live.ard-mcdn.de/daserste/live/hls/de/master.m3u8
	#EXTINF:-1,ARD ONE
	https://mcdn-one.ard.de/ardone/hls/master.m3u8
	#EXTINF:-1,ARD Alpha
	https://mcdn.br.de/br/fs/ard_alpha/hls/de/master.m3u8
	#EXTINF:-1,ARD Tagesschau
	https://tagesschau.akamaized.net/hls/live/2020115/tagesschau/tagesschau_1/master.m3u8
	#EXTINF:-1,ZDF

	#!/usr/bin/env bash
	# castanet.sh: Script to connect a chromecast to a WiFi network.
	#
	# Allows you to put your Chromecast on WiFi and do Chromecast initial setup
	# without using the Google Home app at all, just using a normal Linux computer.
	#
	# You do need your Chromecast to be on Ethernet, or (untested) to join its setup WiFi
	# network with your PC, and you also need to find out its IP yourself with e.g.
	# Wireshark.