Video Info Viewer is an open source app that allows you to view metadata about videos on your iOS device. Inspect resolution, frame rate, and more.
You can also view the specific data structure of the individual atoms of the MPEG-4 format to find file irregularities, missing tracks, and other issues.
Its great for those working with MOV & MP4 files on a daily basis, and for those who just want to learn more about how video files are structured and what data they contain.
Video Info Viewer is open source and licensed under the Apache License, Version 2.0.
The source code is available on GitHub at /hoolrory/VideoInfoViewer-iOS