The nablet HEVC AMA Plugin allows you to link, play and edit HEVC/H.265 video in a MOV or MP4 container via AMA in Avid editing products. It supports linking footage in the video sub-sampling formats 4:2:0 and 4:2:2 at 8 and 10 bits. AAC and PCM audio are supported. The plugin reads the time code and interprets most of the important meta data when this is encapsulated in the media. Furthermore it detects BT.2020, HLG and other HDR capture gamma in HEVC shots so that Media Composer can automatically assign a color transformation that matches the project color space.

Windows, macOS

New in version 1.2.7

  • Added support for XAVC HS clips with 96kHz PCM audio.

Supported Operating Systems


  • Windows 11
  • Windows 10 64-bit


  • macOS 12 Monterey (Intel, Apple Silicon via Rosetta 2)
  • macOS 11 Big Sur (Intel Macs only)
  • macOS 10.15 Catalina
  • macOS 10.14 Mojave
  • macOS 10.13 High Sierra (only 4:2:0 essence can be decoded, 4:2:2 is not supported on 10.13)

Supported Avid Products

  • Avid Media Composer from v8.2 to latest releases

Hardware Requirements

Decoding HEVC is a challenge for a computer system and will be most satisfying on modern hardware. For best performance, on Windows systems the computer should be equipped with an NVIDIA or AMD GPU or an Intel CPU with Quick Sync Video feature, which support decoding of HEVC footage. An Intel processor with Quick Sync Video starting from Skylake family is suitable (Skylake fully accelerates 8 bit and partially accelerates 10 bit, later generations fully accelerate 8 and 10 bit). For the capabilities of your external GPUs please check the manufacturers specification.

Minimum required GPU driver versions:

  • NVIDIA: 436.15
  • AMD: 20.7.1
  • Intel Iris:

Decoding of 4:2:2 footage is currently not supported by any GPU accelerator and will be processed by a software decoder which however may benefit from a partial acceleration on some systems.

On Mac systems HEVC decoding is supported through the Apple Video Toolbox API and performance depends on the systems hardware configuration. macOS 10.13 supports 4:2:0 footage only, macOS 10.14 and macOS 10.15 support 4:2:2 as well. For best performance it is recommended to upgrade to macOS 10.15 or later.

Even if your system’s hardware does not meet the requirements for a fluent realtime playback of HEVC, you still have the option to link the clips and then transcode them to an intermediate proxy or DNxHR profile for further processing.

Version 1.2.7

  • Added support for XAVC HS clips with 96kHz PCM audio.

Version 1.2.6

  • Approved for Windows 11 and macOS 12 (Monterey) (Intel, Apple Silicon via Rosetta 2).
  • Performance improvement on scrubbing.

Version 1.2.5

  • Added support for multiple AAC multichannel audio tracks.
  • Set shot marks from Sony metadata as markers on timeline.
  • Improved scrubbing behavior.

Version 1.2.2

  • For Sony XAVC HS type proxy clips additional dummy audio tracks are added to match the main recordings number of channels.
  • Updated Sony proxy editing workflow instructions.
  • Improved detection of supported video track.

Version 1.2.1

  • Added support for Sony proxy (sub-stream) workflow.
  • Added support for Sony proxy (sub-stream) workflow.
  • Improved metadata detection and parsing.

Version 1.2.0

  • Mac version refactored and approved for macOS 11.0 (Big Sur).
  • Fixed occasional timeout messages during fast scrubbing.

Version 1.1.2

  • Fix: Random start timecode could appear on clips which actually have no timecode.
  • Now accepts clips with variable framerate (VFR) from smartphones for linking. Note: VFR clips may be linked and played but longer clips may lose audio synchronization. Transcode longer clips to constant framerate by third party tools before linking.

Version 1.1.0

  • Support for new Sony XAVC HS HEVC 4:2:0 and 4:2:2 10 bit LongGOP encoded video.
  • Support for new Sony XAVC HS Hi-Res 24 bit and multichannel audio.
  • Support for linking Sony XAVC HS HEVC volumes.
  • Additional metadata parsing.
  • Improved volume detection for certain media.

Version 1.0.1

  • Fix: Plugin failed to load under Media Composer version 2018.11 or earlier on Mac systems.

Developed under license from:

  • Avid Technology, Inc.
  • Microsoft Corporation
  • Apple Inc.
  • Intel Corporation
  • NVIDIA Corporation
  • Advanced Micro Devices, Inc.
  • wxWindows Library License 3.1

Avid, Avid MediaCentral Platform, Avid Media Composer are registered trademarks of Avid Technology, Inc.

Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

macOS is a trademark of Apple Inc., registered in the U.S. and other countries.

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