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trashcaneron
Inspiring
September 25, 2019
Question

HEVC / H265 with Alpha Support in AME

  • September 25, 2019
  • 13 replies
  • 38496 views

Apple recently announced support for Alpha with HEVC. This is great news. Does anyone know about it being available in Creative Cloud / Media Encoder. Looking forward to a lightweight / compressed codec that supports Alpha. 

 

https://developer.apple.com/videos/play/wwdc2019/506/

    13 replies

    LEVEL10
    New Participant
    January 5, 2021

    Any update?

    tanzblume
    Known Participant
    April 22, 2021

    At the moment we are using a workaround.
    We are using macOS Catalina (10.15) with Adobe, we are rendering Apple ProRes 4444 with Alpha.
    After rendering open this file with QuickTime and save it as HEVC with transparency.

    Inspiring
    May 29, 2022

    Doesn't work for me. Input is ProRes 4444XQ with alpha, plays fine everywhere, but Export to H265 removes the alpha channel even when "preserve transparency" is ticked.

    Community Manager
    November 15, 2019

    Hi all,

     

    Sorry for the delay in response. The engineering team has kept adding this feature under review. Though there is no news when will this be implemented/added to the application.

     

    tanzblume
    Known Participant
    May 6, 2020

    Are there some new informations about it?

    Thank you

    trashcaneron
    Inspiring
    June 8, 2020

    I am also curious if there's been an update to this. 

     

    In Catalina, it looks like you can convert a video with an alpha channel (I.e., APR 4444+A) right in the finder by right clicking and selecting the encode option. Transparency included. Not sure if you can queue things and there are limitted options so it isn't ideal, but certainly a decent work around for now. 

     

    Going to be running a test on this and update here with results. 

     

    It also looks like you can do it natively in Compressor or even just the terminal:

    https://kitcross.net/hevc-web-video-alpha-channel/

     

    Community Manager
    September 28, 2019

    Hi there,

     

    Great news!

    I'll get you update on this soon.

     

    Stay tuned!

     

    Thanks,

    Shivangi

    trashcaneron
    Inspiring
    September 30, 2019
    I'm really looking forward to this. Right now the only compressed codec that supports Alpha that works for Windows and Mac and plays back decently in programs like Isadora, MadMapper, Unity is HAP+Alpha and it takes forever to transcode.
    Community Expert
    January 5, 2021

    Did Unity change something since 2018?  Freelancing at a small all Windows shop, they had to pick up a Mac Mini to import Apple ProRes 4444 with Alpha into Unity.