What is an open source solution for optimizing video for the web?

Question

Video

There is an open source solution for images https://imgproxy.net
But I can't find something similar for videos.

In general, you need a solution that will receive a video file, optimize it using resolution and format, and save it to S3 storage.
When distributing content, I would like some kind of simplification so that the video is distributed in parts, it itself determines the supported format and chooses the resolution.

Answer 1

Read about HLS and DASH, they distribute video in small fragments in a set of different resolutions / bitrates. There are open source solutions hls.js and dash.js that are used by almost all players. ffmpeg is usually used to prepare manifests.