fluent-ffmpeg-simplified: A much simpler implementation of fluent-ffmpeg

About

This is a reimplementation of fluent-ffmpeg, aimed to be much simpler in code, and free from tech debt and old development practices. Due to that, there are several differences that one should be aware of.

Differences from original fluent-ffmpeg

Constructors can't be called without new

This will not work

import { FFmpegCommand } from "fluent-ffmpeg-simplified";
const command = FFmpegCommand(...) // !!!

Please add new before FFmpegCommand

No method aliases

All methods that are listed as aliases in fluent-ffmpeg's README aren't implemented. Please use the main function names.

Multi-inputs and outputs

This package integrates ffmpeg-multistream, allowing you to specify multiple output files/streams and have separate options for them.

Due to this greater flexibility, an output must be specified using the output method before running the command. Methods like save() and stream() don't exist. If you want to get an output stream, pass a PassThrough stream to output.

Because each output can have its own options, an output must be specified before any output option methods are called.

const command = new FFmpegCommand();
command.audioFrequency(...).output(...); // This does not work
command.output(...).audioFrequency(...); // Do this instead

No thumbnail generation, no flvtool among others

Those seems to be rare use cases, and thus are not included here.

No stdout

Due to explicit output requirement, event handlers receiving stdout will always get an empty string.

No manual kill signal sending

Please use the standard AbortController mechanism.

Improvements

More robust process handling

Instead of a custom-made process handler, this package uses the battle-tested execa package, which should be more robust and handles more edge cases.

Install

No npm packages are published for this yet. For now, use the pkg.pr.new install links.