ISOBMFF is a popular file format for encapsulating media content, including video, images, and audio. The format originated in Apple's QuickTime, but has been standardized (as ISO/IEC 14496-12:2022), ...
This repo is a regular Unity package. You can install it as your project dependency. More here: https://docs.unity3d.com/Manual/upm-dependencies.html. The library ...