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Documentation/Encoding/Release Notes/Encoder

Encoding Encoder Releases

Latest Releases

Date

Version

Beta

9/8/2020

2.53.0

Added

  • Enabled multiple Per-Title progressive muxings to separate files in the same target directory.
  • Support for VoD SMOOTH manifests as option of start encoding call
  • Support for 3-pass encodings in Azure
  • Improved encoding speed of high bitrate J2K inputs in Azure
  • Support for XDCAM output with the following new codecs / muxings:

Fixed

  • Issue when vbv parameters are set in 3-pass algorithm with the last segment quality was fixed
  • Fixed some combinations of color config with VP9 codec which lead to failures
  • Fixed an error that led to failed 3-pass encodings in the cloud region AWS_EU_WEST_2

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.

Stable

8/25/2020

2.52.0

Added

  • Added support for using the same input audio stream for both Audio-Mix filter and non-filter workflows.
  • If for the encoding no SAR is specified then in the resulting video SAR is available as metadata with the value of 1:1.

Changed

  • Encodings with at least one UHD+ output stream are up to 33% faster.
  • Improved stability and speed of encodings with longer segment lengths and/or very high input-bitrate in GCE

Fixed

  • A possibly re-connect issue has been fixed for the live use-case when a timestamp rotation occurs in the following order Video, Subtitle, and Audio and the Subtitle packet was following an Audio packet.
  • Bugfix for Conform filter together with trimming for video streams.
  • A potential problem for live encodings has been fixed that previously led to a restart. This happened whenever a timestamp rotation occurred and the first packed with the updated timestamp has been a subtitle packet and is fixed now.
  • Improved handling of Azure authentication issues.

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.

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

7/30/2020

2.50.1

Added

  • With 2.50.0 we improved the download speed for: S3, GCS and Generic S3. As per this improvement, we require the GetBucketLocation permission. If this permission is not set, we will now fall back to the slow download instead of failing.

Fixed

  • Improved encoding speed for Google regions when using the customer's GCP infrastructure together with using the option to run all API communication from a specific IP range, as now also worker nodes are requested using the same IP range.

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

7/28/2020

2.50.0

Added

  • Added Dolby Atmos support
    • Input as ADM or DAMF Dolby Master files
    • Output to fMP4 in DASH/HLS
    • Support for Widevine, PlayReady and FairPlay DRM
  • Improved bitrate distribution over segments for 3-pass encodings
    • Especially improves last segment visual quality

Changed

  • Improve the download speed from the following inputs: S3, GCS and Generic S3
  • The handling of input timestamps for Zixi/SRT live stream encodings is improved.

Fixed

  • Fixed an issue with customData on filters leading to "scheduling failed" errors
  • Fixed encoding failures for some VP9 encodes and tuned encoder rate control, quality and speed.
  • Fixed a rounding error in the Per-Title algorithm that led to a missing FIXED_RESOLUTION_AND_BITRATE rendition in some very rare circumstances.

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

7/14/2020

2.49.0

Added

  • For video encodings a display aspect ratio (DAR) for the output can be specified. If the DAR does not match with the width and height, then the sample aspect ratio (SAR) will be adjusted accordingly.
  • Added support for HLS iFrame playlist generation for AVC/HEVC in fMP4 with and without encryption.
  • Added support for passthrough of DTS audio codec.

Fixed

  • For Zixi/SRT live streams, if the ingest disconnects and reconnects again with a different stream layout: audio silence will be written for audio streams, which cannot be found in the new ingest; if the video stream is not found again the live stream will go into ERROR state.
  • Fixed invalid DASH fMP4 output with non-integer segment lengths. This resolves the related playback issues.
  • A timeout with retry mechanism has been added for live manifests uploads to S3, Generic S3, and GCS in order to avoid player buffering for uploads that take too long.

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

7/21/2020

2.48.1

Fixed

  • Fixed an issue when the customData property of a resource is configured and the value is not valid JSON.

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

6/30/2020

2.48.0

Added

  • Allow manual restart of live encodings in state FINISHED or ERROR
  • Enabled restart of live encodings if the encoder is unresponsive due to an instance failure (hardware, software, network issue etc.). This will lead to the live encoding being started on an instance with a new IP address.
  • Improved download speed of GCS Service Account input up to 15x
  • Added option to set suggestedPresentationDelay, minimumUpdatePeriod and availabilityStartTimeMode to the DashManifests when starting a live encoding

Fixed

  • Fixed a bug which prevented the creation of Per-Title encodings in combination with h.265, BroadcastTS and AutoRepresentations.
  • Fixed a bug in the parameter set signaling of segmented TS outputs. The parameter sets were signaled with a 3 byte start code (0x00 0x00 0x01) where according to the standards the start code must be 4 bytes (0x00 0x00 0x00 0x01).
  • A possible stall situation with high-bitrate input files when quality metrics are enabled has been fixed
  • Fixed a stall situation caused by a high amount of logs produced in a small amount of time
  • Fixed an issue where the publishTime in a SegmentTimeline DASH Manifest might be updated, although the content of the manifest hasn't changed
  • Fixed webm segments content-type detection.
  • When using ProgressiveWebM with manifestType DASH_ON_DEMAND and DRM, the first 5 seconds are also encrypted now.
  • Fixed an encoding job error when thumbnail width or height was not a multiple of 4.

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

6/9/2020

2.47.2

Changed

  • When using ProgressiveWebM with manifestType DASH_ON_DEMAND and DRM, the first 5 seconds are also encrypted now.

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
  • Encoding jobs will fail if the thumbnail width or height is not a multiple of 4

6/8/2020

2.47.1

Fixed

  • Fixed an issue where the publishTime in a SegmentTimeline DASH Manifest might be updated, although the content of the manifest hasn't changed
  • Resolved an internal condition where the encoder might stall while processing content

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
  • Encoding jobs will fail if the thumbnail width or height is not a multiple of 4
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