node-fluent-bento4

This is a simple node module that provides a fluent api for the bento4 commands. At minimum, it provides a means to set the location of the binaries and execute a command.

Installation

npm i --save fluent-bento4

Usage

When the fluent-bento is required, as seen below, it returns a Bento4 object with the binPath not set, assuming a global install, or set to the value set in the environment variable BENTO4_BIN:

const bento4 = require('fluent-bento4')

To set the binPath of the executable binaries you can do it by using the constructor function as show below:

const bento4 = require('fluent-bento4')({bin:'/a/path/to/the/bin'})

You can set the binPath also by using the setBinPath method on the Bento4 object, as show below.

const newBento4 = bento4.setBinPath('/a/path/to/the/bin')

The thing to note here is that the setBinPath method returns a new Bento4 object and does not set the binPath on Bento4 object of the method itself. The state of the bento4 object is immutable.

##Executing Commands Every command has an exec(input, args=[]) method.

The input parameter can be a string or an array of strings that represent the file path of input video (e.g /videos/myvid.mp4 or ['/videos/myvid1.mp4', '/videos/myvid2.mp4']).

The args parameter is an array of command options for the specific command. For example, the mp4dump commands args parameter may look like this ['--format', 'json'].

const { binPath } = require('bento4-installer')
const bento4 = require('bento4')({bin:binPath})
const inputVideo = path.join(__dirname, '/videos/vid.mp4')
const args = ['--format', 'json']

const jsonDump = bento4.mp4dump.exec(inputVideo, args)