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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| /** | |
| * A JavaScript function that reproduce itself as a Quine program. | |
| * Copyright (c) 2017 Moshe Simantov | |
| */ | |
| const assert = require('assert'); | |
| const quine = (function () { | |
| var f = '(function () {%0A var f = %27@%27;%0A%0A return eval(unescape(f).replace(/@/, f));%0A})'; |
| if not exist "output" mkdir output | |
| for /r path %%var in (*.m4a) do ffmpeg -i %%var -c:a libfdk_aac -b:a 320k output\%%var.m4a |
| @echo off | |
| set found=0 | |
| setlocal enabledelayedexpansion | |
| for /L %%a in (start,1,9999) do ( | |
| set "num=%%a" | |
| set "num=!num:~-4!" | |
| if exist "ZCAM!num!_*.MOV" ( | |
| set found=1 | |
| echo "Create and move files to folder '%%num'" |
| class Foo { | |
| test() { | |
| return 'Foo'; | |
| } | |
| } | |
| class Bar extends Foo { | |
| test() { | |
| return `${super.test()}Bar`; | |
| } |
| sudo yum install epel-release | |
| sudo yum install nginx | |
| #mkdir cert && cd ./cert | |
| #openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr | |
| sudo /etc/init.d/nginx start | |
| update-rc.d nginx defaults | |
| #nano /etc/nginx/nginx.conf |
| #!/usr/bin/env bash | |
| set -e | |
| NODE_ENV=production | |
| GIT_HOSTNAME=bitbucket.org | |
| GIT_PATH=username/project.git | |
| GIT_PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY----- | |
| ... | |
| -----END RSA PRIVATE KEY-----" | |
| INSTALL_SCRIPT=install.sh |
| # generate private and public keys | |
| ssh-keygen -f ~/.ssh/id_rsa -q -P "" | |
| cat ~/.ssh/id_rsa.pub | |
| # add some public keys | |
| nano ~/.ssh/authorized_keys | |
| ## install basic packages | |
| sudo apt-get -y update | |
| sudo apt-get -y install default-jre git ImageMagick |
| ul.tagit { | |
| padding: 1px 5px; | |
| overflow: auto; | |
| margin-left: inherit; /* usually we don't want the regular ul margins. */ | |
| margin-right: inherit; | |
| } | |
| ul.tagit li { | |
| display: block; | |
| float: left; | |
| margin: 2px 5px 2px 0; |
| Verifying I am +moshes on my passcard. https://onename.com/moshes |