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Wowza Streaming Engine™ 4.8.28+4 build 20240709173404 released July 10, 2024.
New features and functionality in Wowza Streaming Engine 4.8.28
Included Java 21 with the Wowza Streaming Engine installer
New Wowza Streaming Engine 4.8.28 installations include a Java Runtime Environment (JRE) for Java 21 (OpenJDK Java SE JRE 21.0.3). However, if you're using the updater for Wowza Streaming Engine 4.8.28, you can keep the same JRE included with your original installation, Java 11 (OpenJDK Java SE JRE 11.0.2). You can manually roll back new installations to Java 11 if needed. For more, see:
The move towards Java 21 helps us transition to the latest Long-Term Support (LTS) release of Java. Java 21 offers security and performance improvements, including generational support for the Z Garbage Collector (ZGC). The Generational ZGC extends the Z Garbage Collector and improves performance and efficiency, especially for applications with long-running processes and large heaps. It works by dividing the heap into separate generations for short-lived and long-lived objects. By focusing garbage collection efforts more frequently on the young generation, overall performance improves. For additional information, see Java garbage collection settings.
Added AES-128 encryption support to secure CMAF HLS streams
With Wowza Streaming Engine 4.8.28 and later, you can protect live CMAF-packetized HLS streams using the CBCS scheme of Common Encryption. Wowza Streaming Engine encrypts and delivers live CMAF HLS content on the fly via the SAMPLE-AES encryption method, where individual audio and video samples in an HLS chunk are secured with AES-128 encryption. This feature doesn't currently support integrations with third-party DRM systems. For more, see Secure CMAF HLS streams using Common Encryption (CBCS) in Wowza Streaming Engine.
Added a custom module to convert timed metadata from AMF to ID3 for CMAF
We added documentation explaining how to use a custom Java module and the Wowza Streaming Engine Java API to convert AMF metadata to ID3 metadata in live CMAF streams. With this module, you can process a live CMAF stream, extract metadata from the stream's AMF packets, and convert that AMF data to ID3 tags when the stream plays over HLS. The module generates Event Message (emsg) frames containing ID3 metadata. It then sends the data packet to the player using the emsg format. For more, see the Convert AMF metadata to ID3 metadata in a live CMAF stream example.
Installation and update considerations for Wowza Streaming Engine 4.8.28
If you're updating to Wowza Streaming Engine 4.8.28 from a base installation of Wowza Streaming Engine 4.8.27 or earlier, see Updating to Wowza Streaming Engine version 4.8.28.
More Information is below.
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