Wowza Streaming Engine 4.8.12 Released

Version: Wowza Streaming Engine™ 4.8.12+1 build 20210419174623 released on April 20, 2021.


New features and functionality in Wowza Streaming Engine 4.8.12

Replacing corrupt video frames with error-free frames

In addition to replacing missing video frames to ensure a consistent frame rate, with Wowza Streaming Engine 4.8.12, you can now also replace corrupt frames with error-free frames when using H.264 video and Beamr decoding. After enabling missing frame replacement and Beamr decoding, you can enable outputting only error-free frames with the EnforceStrictDecodeSuccess property in your Transcoder template. For more information about replacing corrupt frames, see the following the article:

Deprecation of Adobe HDS and Microsoft Smooth Streaming

With Wowza Streaming Engine 4.8.12, we've deprecated streaming with Adobe HDS and Microsoft Smooth Streaming. By default, Adobe HDS and Microsoft Smooth Streaming are disabled in new applications created with Wowza Streaming Engine 4.8.12. Applications created in earlier versions of Wowza Streaming Engine are unchanged after upgrading to Wowza Streaming Engine 4.8.12. For more information about these deprecations, see the following the article:

Detailed list of changes in Wowza Streaming Engine 4.8.12

Changes since Wowza Streaming Engine 4.8.11

  • Added a new Transcoder template property to enable replacing corrupt video frames with the last successfully decoded frame (location: [install-dir]/transcoder/templates/[template].xml, <Root>/<Transcode>/<Decode>/<Video>; name: EnforceStrictDecodeSuccess; default: false). This property currently only applies to H.264 video using the Beamr software decoder.

  • Deprecated Adobe HDS streaming. By default, Adobe HDS is disabled in new applications.

  • Deprecated Microsoft Smooth Streaming. By default, Microsoft Smooth Streaming is disabled in new applications.

  • Removed the cupertinoAllowNotFoundOnEmptyMediaList property that allowed returning an empty master playlist.

  • Updated the default value of Flash Version String to fix an issue with connecting to Elemental Live encoders.

  • Fixed an issue with RTCP sender reports not being sent for TCP transports used by RTSP players.

  • Fixed an issue with setting an incorrect report count in WebRTC and RTSP receiver reports.

  • Fixed an issue with reporting invalid data in RTSP receiver reports.

  • Fixed an issue with SRTP authentication and decryption failing due to large amounts of lost or out-of-order packets that could cause a slow memory leak when HLS (cupertinostreamingpacketizer) is enabled.

  • Fixed an issue with reporting duplicate rendition reports (#EXT-X-RENDITION-REPORT) for adaptive bitrate Low-Latency HLS streams.

  • Fixed an issue with not reporting all renditions and having incorrect URLs in rendition reports (#EXT-X-RENDITION-REPORT) for adaptive bitrate Low-Latency HLS streams.

  • Fixed an issue with decoder resampling of G.711, MP3, and Opus audio sources.

  • Fixed an issue with USB license keys not being used in some network configurations.

  • Fixed an issue with logging CencInfo that resulted in a Null Pointer Exception.

  • Fixed an issue with the dvrPurgeControlClass property (PROPERTY_PURGE_CONTROL_CLASS) not loading the class as defined by users.

  • Fixed an issue with custom StreamRecorder properties not appearing in the Custom properties list in Wowza Streaming Engine Manager after adding them to an application.