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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

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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

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Introduction

There’s been a lot of buzz in the recent year around Ethereum cryptocurrency and not without cause. Smart contracts is a new exciting concept that Ethereum introduced. What is it? Ethereum is a distributed ledger (same as bitcoin) but this ledger may contain not only accounts and balances, but also computer programs. Programs are first class citizen on Ethereum blockchain and they are not only stored on it, but they provide functions that might be called (same as you may deposit or withdraw money on the ledger’s account) and store its state on the blockchain. For software developers it would be a good analogy that Ethereum Blockchain is a something similar to a VM. There is a virtual machine with instances of objects that are stored in its memory (smart contract). Instances contain not only code that might be executed but also its state. The main difference is that the everything is stored on distributed ledger instead of RAM. This metaphor is not perfect and simplifie

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Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

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Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

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# You don't need Fog in Ruby or some other library to upload to S3 -- shell works perfectly fine
# This is how I upload my new Sol Trader builds (http://soltrader.net)
# Based on a modified script from here: http://tmont.com/blargh/2014/1/uploading-to-s3-in-bash

S3KEY="my aws key"
S3SECRET="my aws secret" # pass these in

function putS3
{
  path=$1

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running:

bash create-vod-hls.sh beach.mkv

will produce:

    beach/
      |- playlist.m3u8
 |- 360p.m3u8

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/* globals localStorage */
import { onSnapshot, applySnapshot } from 'mobx-state-tree';
import Storage from './storage';

export const persist = (name, store, options, schema = {}) => {
  let hydrated = false;

  let storage = options.storage;

  if (typeof localStorage !== 'undefined' && localStorage === storage) {

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<template>

  <div>
    <input type="file" multiple accept="image/*" @change="detectFiles($event.target.files)">
    <div class="progress-bar" :style="{ width: progressUpload + '%'}">{{ progressUpload }}%</div>
  </div>

</template>

<script>

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import React, { Component } from 'react';
import Video from 'react-native-video';
import {
    TouchableWithoutFeedback,
    TouchableHighlight,
    PanResponder,
    StyleSheet,
    Touchable,
    Animated,
    Easing,