Wowza Streaming Engine 4.7.3 released!

Wowza Streaming Engine 4.7.3 build 21227 released!

Stream Target - SRT support




Stream Target: Facebook 360 Support



SSL support

Wowza Changes logs 

Changes since 4.7.2.02 release
  • Added support for Secure Reliable Transport (SRT) on Windows operating systems

  • Fixed SRT parameters used by the SRT Push Publishing profile (StreamTargets)
  • Fixed SRT Stream Target to resolve hostnames correctly
  • Updated Facebook Stream Target to improve stability and error-handling, and to reduce overall graph API usage
  • Updated Facebook Stream Target to support 360 video tagging
  • Updated RTMP-based Stream Target to use query parameters correctly
  • Improved Wowza Streaming Engine Manager configuration for Secure Sockets Layer (SSL) deployments
  • Fixed Microsoft Azure images to prevent license failures when restarting after prolonged stop
  • Fixed MPEG-DASH streaming to correctly support wowzaplaystart, wowzaplayduration, and wowzaplayseek parameters embedded in segment request file names (originally from MPD request query params)
  • Fixed H.264 media reader to correctly apply wowzaplayduration parameter to chunk requests
  • Improved handling of streams with missing keyframes when using Apple HLS (Cupertino) packetizer
  • Updated Transcoder log messages to show number of active decodes
  • Updated Wowza Streaming Engine Manager to prevent incorrect LiveStreamRecord template keys from being entered
  • Improved LiveStreamRecord to search deeper into the packet queue to align audio and video
  • Added Application/Properties property liveStreamRecorderDefaultAudioSearchPosition (Boolean, default=true)
  • Added Application/Properties property liveStreamRecorderSkipKeyFrameUntilAudioTimeout (Integer, default=10000 milliseconds)
  • Fixed LiveStreamRecord template keys so they're always substituted correctly
  • Fixed property Application/HTTPStreamer/Properties/httpMaxHTTPSessionsPerTCPSession to correctly limit session creation
  • Fixed CORS headers to prevent them from being sent when disabled
  • Fixed REST API to prevent null value properties from being added to XML configuration files
  • Updated REST API HTTP return codes to better reflect API responses
  • Improved Wowza Streaming Engine installer security
Secure Reliable Transport (SRT) Streaming
  • Added support for ingesting Secure Reliable Transport (SRT) sources with the MediaCaster
  • Updated Secure Reliable Transport (SRT) libraries
  • Fixed SRT implementation to handle Advanced Encryption Standard (AES) key parameters correctly
  • Added support for Secure Reliable Transport (SRT) Stream Targets in Wowza Streaming Engine Manager
  • Fixed SRT MediaCaster to release lock correctly when a stream is being received


Stream Targets (Push Publishing)
  • Updated Cupertino stream target base class so that the master playlist isn't sent when a target is defined with an adaptiveGroups value (reduces bandwidth usage and ensures compatibility with Akamai NetStorage)
  • Resolved issues with CPU loading caused by threads monitoring live stream packetizers for PushPublishing HTTP protocol profiles (HLS, HDS, DASH)
  • Fixed timing issue with PushPublishing HTTP targets when the livestreampacketizer wasn't detected properly, resulting in no files being pushed
  • Fixed issue with handling of the URL attribute in HLS EXT-X-KEY tags in PushPublishing
  • Fixed exception that occurred when PROGRAM-DATE-TIME tags were added to HLS/Cupertino stream targets


Media Cache
  • Improved configuration validation of MediaCache Sources in Wowza Streaming Engine Manager
  • Added default maximum and minimum time to live values for Media Cache sources when using Wowza Streaming Engine Manager
  • Added default maximum and minimum time to live values for Media Cache sources when using the Wowza Streaming Engine REST API


MediaCasters, Stream Files, and Startup Streams
  • Fixed issue causing exception with Apple HLS MediaCaster streams
  • Improved LiveRepeater MediaCaster reset logic when streamForceResetOnReconnect is enabled
  • Fixed MediaCaster so _definst_ is correctly removed when IsrRemoveDefaultAppInstance is set to true for WOWZ and RTMP connections
  • Improved Apple HLS MediaCaster to support relative path pointers


Live Stream DVR Playback (Wowza nDVR)
  • Changed incorrect Application/DVR/Properties property name chunkBreakOnPTSManifest to dvrChunkBreakOnPTSManifest
  • Added Application/DVR/Properties property chunkBreakOnPTSManifest (Boolean, default false) to write presentation timestamp (PTS) time into manifest
  • Fixed nDVR conversion to correctly handle audio-only MP3 stores


WebRTC (Preview)
  • Added Application/Properties webrtcIdleTimeout property (Integer, default=5000) for WebRTC connections


RTSP/RTP Streaming

  • Fixed RTP SDP exchange to include sprop-parameter-set parameter


Apple HLS (Cupertino) Streaming
  • Added HTTPS support for Apple HLS stream files created in Wowza Streaming Engine Manager
  • Fixed null pointer exceptions when an HLS chunk isn't ready for publishing


General Streaming
  • Added on-demand playback support for MPEG-4 Audio Lossless Coding (MPEG-4 ALS) using MPEG-DASH
  • Fixed CORS headers that were being added incorrectly for HTTP requests
  • Updated MPEG-DASH MPD creation to list elements in the order in which they are inserted through the CENC encryption APIs
  • Improved NetConnection to allow send and receive chunk sizes to be changed for outbound connections:
  • Added Application/Streams property rtmpSendChunkSize (Integer, default=512)
  • Added Application/Streams property rtmpReceiveChunkSize (Integer, default=128)
  • Fixed MediaReaderH264 to correctly return no audio type when files don't contain an audio track
  • Added Transcoder decoding parameters for NVCUVID/CUDA to enable control of maxNumDecodeSurfaces


REST API
  • Updated the REST API endpoint /v3/servers/{serverName}/vhosts/{vhostName}/applications/{appName}/instances/{instanceName}/incomingstreams/{streamName}
  • Added parameter audioCodecString
  • Added parameter videoCodecString
  • Updated audio configuration string:
  • Changed isAudioReady and isVideoReady to show the number of audio and video packets in the stream queue
  • Fixed sourceIP to correctly show the publishing IP when using WebRTC
  • Fixed video configuration so that it looks for the latest available video configuration packet rather than the current packet queue


General Server
  • Updated core requirements to Java 7 and above
  • Updated core Jackson libraries to 2.9.0
  • Updated core Apache HTTP client library to 4.5.3
  • Updated core Apache HTTP core library to 4.4.6
  • Added winstone-log4j.properties to installer
  • Removed unused Amazon S3 classes from core server code
  • Improved filtering of query parameters in Wowza Streaming Engine Manager requests




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