Ulf Hamster ulf1

Github Copilot Custom Instructions for Effective Dart

The following can be included as part of the [.github/copilot-instructions.md])https://docs.github.com/en/copilot/how-tos/custom-instructions) file.

Coding Standards

Follow Effective Dart guidelines for consistent Documentation & Coding.

Glossary

A library member is a top-level field, getter, setter, or function. Basically, anything at the top level that isn't a type.
A class member is a constructor, field, getter, setter, function, or operator declared inside a class. Class members can be instance or static, abstract or concrete.
A member is either a library member or a class member.

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

	#!/bin/bash
	# This script will take an animated GIF and delete every other frame
	# Accepts two parameters: input file and output file
	# Usage: ./<scriptfilename> input.gif output.gif

	# Make a copy of the file
	cp $1 $2
	echo "copy completed"
	# Get the number of frames
	numframes=`gifsicle $1 -I \| grep -P "\d+ images" --only-matching \| grep -P "\d+" --only-matching`

	#!/usr/bin/env python
	# Clone or update all a user's gists
	# curl -ks https://raw.github.com/gist/5466075/gist-backup.py \| USER=fedir python
	# USER=fedir python gist-backup.py

	import json
	import urllib
	from subprocess import call
	from urllib import urlopen
	import os

	ּ_בּ
	בּ_בּ
	טּ_טּ
	כּ‗כּ
	לּ_לּ
	מּ_מּ
	סּ_סּ
	תּ_תּ
	٩(×̯×)۶
	٩(̾●̮̮̃̾•̃̾)۶

	# http://graphicdesign.stackexchange.com/questions/20908/how-to-remove-every-second-frame-from-an-animated-gif

	gifsicle "$1" --unoptimize $(seq -f "#%g" 0 2 $numframes) -O2 -o "$2"