Drew Lustro drewlustro

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

In this article, I will share some of my experience on installing NVIDIA driver and CUDA on Linux OS. Here I mainly use Ubuntu as example. Comments for CentOS/Fedora are also provided as much as I can.

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

	require 'net/http'
	require 'json'
	require 'uri'

	@token = ''

	def list_files
	ts_to = (Time.now - 30 * 24 * 60 * 60).to_i # 30 days ago
	params = {
	token: @token,

	codecov:
	token: uuid # Your private repository token
	url: "http" # for Codecov Enterprise customers
	slug: "owner/repo" # for Codecov Enterprise customers
	branch: master # override the default branch
	bot: username # set user whom will be the consumer of oauth requests
	ci: # Custom CI domains if Codecov does not identify them automatically
	- ci.domain.com
	- !provider # ignore these providers when checking if CI passed
	# ex. You may test on Travis, Circle, and AppVeyor, but only need

	###
	###
	### UPDATE: For Win 11, I recommend using this tool in place of this script:
	### https://christitus.com/windows-tool/
	### https://github.com/ChrisTitusTech/winutil
	### https://www.youtube.com/watch?v=6UQZ5oQg8XA
	### iwr -useb https://christitus.com/win \| iex
	###
	### OR take a look at
	### https://github.com/HotCakeX/Harden-Windows-Security

	import React from 'react';
	import { shallow } from 'enzyme';
	import MyComponent from '../src/my-component';

	const wrapper = shallow(<MyComponent/>);

	describe('(Component) MyComponent', () => {
	it('renders without exploding', () => {
	expect(wrapper).to.have.length(1);
	});

	# This makes sure Chrome is always up to date in your test suite
	# On average this adds about 10 seconds to your build suite
	# Be sure to use Ubuntu 14.04 (Trusty) in the CircleCI's OS setting (Settings > Build Environment)
	dependencies:
	pre:
	- curl -L -o google-chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
	- sudo dpkg -i google-chrome.deb
	- sudo sed -i 's\|HERE/chrome\"\|HERE/chrome\" --disable-setuid-sandbox\|g' /opt/google/chrome/google-chrome
	- rm google-chrome.deb