Castr blog
Live streaming guides from the team that runs it.
Practical articles on broadcasting, encoding, hosting, monetization, and everything in between, written by the Castr team.
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Tips & Tricks
Custom RTMP Explained: How to Use It with Castr
Custom RTMP extends standard RTMP, letting you broadcast to any platform that accepts a stream key and server URL.
Apr 16, 2025 · 3 min
Streaming Protocol
A Complete History of RTMP Streaming Protocol
Developed by Macromedia(1996), RTMP enabled Flash streaming. Adobe acquired it(2005), made it open-spec(2012). Post-Flash era: still used for stream ingestion.
Apr 12, 2025 · 8 min
Stream Key
Stream Key: What Is It and How to Get It?
A stream key is a unique identifier that connects your broadcasting software to your streaming platform.
Mar 20, 2025 · 5 min
Monetization
What is AVOD (Advertising Video on Demand)?
Advertising Video On Demand is a modern content monetization method. Read the blog to know its benefits, prospects, and market share.
Mar 6, 2025 · 5 min
Codec
What is AAC (Advanced Audio Coding)?
AAC (Advanced Audio Coding) is a digital audio coding standard developed in 1997 for audio compression.
Feb 18, 2025 · 4 min
Codec
What is Opus Audio Codec?
Opus is an open-source audio codec built for both speech and music. Learn how it works and why it suits modern low-latency streaming.
Feb 18, 2025 · 8 min
Livestream
Streaming Media Uncovered: History, Technology, and the Future of Digital Entertainment
Streaming media is a technology that delivers digital audio and video content over the internet in real time.
Jan 31, 2025 · 15 min
Tips & Tricks
How to Change OBS Keyframe Interval?
Change the keyframe interval in OBS Studio: Go to Settings > Output > Set Keyframe Interval > Apply > OK. Recommended: 2 seconds.
Jan 30, 2025 · 3 min
Monetization
Push Video-On-Demand (Push VOD)
Push VOD is a delivery method where providers send video straight to a viewer's set-top box or PVR ahead of time, without the viewer requesting it.
Jan 30, 2025 · 3 min
Tips & Tricks
What is Keyframe Interval?
Keyframe interval refers to the frequency at which complete frames, called keyframes, appear in a video sequence.
Jan 22, 2025 · 5 min
Tips & Tricks
How to Increase Stream Quality in 10 Steps | 2026 Updated
How can you make sure that the streaming quality is always at its best? This blog post will help with How to Increase Stream Quality.
Jan 8, 2025 · 10 min
Statistics
OTT Statistics & Market Insights [2026]
Explore the latest OTT statistics and market trends for 2024. Stay informed on the evolving landscape of Over-The-Top platforms in this insightful blog post.
Jan 8, 2025 · 13 min
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