# Writing fragmented MPEG-4 files for HTTP Live Streaming Create an HTTP Live Streaming presentation by turning a movie file into a sequence of fragmented MPEG-4 files. ## Overview > Note: This sample code project is associated with WWDC20 session [10011: Authoring Fragmented MPEG-4 with AVAssetWriter](https://developer.apple.com/videos/play/wwdc2020/10011). ### Configure the sample code project Before you run the sample code project in Xcode: 1. Edit the shared scheme called `fmp4Writer`. 2. Open the Run action. 3. Replace the ** argument with the path to a movie file on your local hard drive. 4. Replace the ** argument with your desired output directory; for example `~/Desktop/fmp4writer/`. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)