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Encoding Encoder Release 2.51.0

8/11/2020

2.51.0

Added

  • OCR processing of DVB subtitles is now supported for live encodings with an output using the WebVTT codec and a muxing of either ChunkedText or fMP4
    • ChunkedTextRepresentation for Segmented WebVtt in DASH Manifests in combination with DVB subtitles
    • DvbSubtitleInputStream to allow specifying the Dvb subtitle input stream
    • Support for Segmented WebVtt in HLS Manifests in combination with DVB subtitles
  • Added the GCE region endpoint to specify the network and the subnet for GCE-Connect.
  • CBR encoding for h.264 is now supported with correct model parameters.

Changed

  • Per-Title will fail now for cases where a FIXED_RESOLUTION will not fit inbetween two FIXED_RESOLUTIONS_AND_BITRATE for complex assets because of a configuration problem, i.e., bitrate ranges for FIXED_RESOLUTIONS_AND_BITRATE in combination with the minimum step size.
  • The issue with stalling encodings for inputs with reordered frames in Mov was improved. We will fail instead of stalling.

Fixed

  • Bugfix for Dolby Vision and trimming. The output could be missing some frames at the end of the encode.
  • Improved stability of the live stream where the input ingest has out of order subtitle packets.
  • Live encoding stability has been improved by detecting a stalled input and trying to re-connect

Known Issues

  • Per-Title encodings only work with GCS, S3, Generic S3, Akamai NetStorage or Azure Blob output.
  • Progressive MP4 with CBR encodings might have incorrect HRD buffer signaling.
  • S3 role-based output for segmented muxings: No upload verification available

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