VideoLab Blog

Guides, tutorials, and deep dives on video streaming technology — written for developers, engineers, and streaming enthusiasts.

Streaming Formats2024-04-10·8 min read

What is HLS Streaming? A Complete Guide for Developers

Learn what HTTP Live Streaming (HLS) is, how M3U8 playlists work, and how to test and debug HLS streams using VideoLab.

Debugging2024-04-18·10 min read

How to diagnose and fix the most common video playback errors including CORS failures, codec issues, network errors, and more.

Advanced Debugging2024-05-12·6 min read

How to fix the issue where hls.js randomly pauses playback indefinitely due to microscopic audio/video track drift.

CDN & Infrastructure2024-06-03·7 min read

Why perfectly configured HLS streams suddenly throw CORS errors, and how CDN caching behavior is usually to blame.