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Encoding Encoder Release 2.83.1




  • Dolby Digital and Dolby Digital Plus codec configurations are now available as replacement for AC3 and EAC3.
    • We are therefore deprecating AC3 and EAC3 as the two new codec configurations are producing output, which conforms to Dolby's high certification standards.
    • Our multi-codec example now uses Dolby Digital instead of AC3.
    • For more information see our tutorial here.
  • Sprite generation no longer requires both width and height to be set, as long as one of the two values is configured, the other one is automatically computed based on the aspect ratio of the video.
  • Thumbnail creation has been extended to allow the same options with regards to height and width as sprite generation.


  • Improved internal stall-detection to prevent additional edge cases. These edge cases previously lead to stalls resulting in unexpectedly long running encodings.
  • Dolby Atmos encodings previously failed if there was an additional unused audio stream along the video stream. This has been fixed.
  • Encodings with input concatenation with inputs that have different fps have occasionally stalled. This was fixed.

Known Issues

  • S3 role-based output for segmented muxings: No upload verification available.
  • AdaptationSets in DASH manifests could contain the same codec multiple times in the codecs attribute, when the manifest contains a Dolby Digital, Dolby Digital Plus or a Dolby Atmos rendition.

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