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trashcaneron
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

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      LEVEL10
      LEVEL10
      Participant
      January 5, 2021

      Any update？

        tanzblume
        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.

        R
        Rajovo
        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.

        S
        Community Manager
        Shivangi_GuptaCommunity Manager
        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
          tanzblume
          Known Participant
          May 6, 2020

          Are there some new informations about it?

          Thank you

            trashcaneron
            trashcaneronAuthor
            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/

             

              S
              Community Manager
              Shivangi_GuptaCommunity Manager
              Community Manager
              September 28, 2019

              Hi there,

               

              Great news!

              I'll get you update on this soon.

               

              Stay tuned!

               

              Thanks,

              Shivangi

                T
                teonicel
                Participant
                February 22, 2022

                Adobe Media Encoder is not supporting hevc/h265 with alpha channel export neither on mac or windows, on mac os i used compressor ftom apple (yep adobe you suck, i had to pay 50 bucks more for compressor so i can export a quicktime .mov hevc with alpha channel), still loking for solution for h265 .mp4 with alpha channel, anyone any ideeas, to be noted i have a custom resolution so some solution might not be suitable if they have restricted resolutions

                  W
                  Community Expert
                  Warren Heaton10841144Community Expert
                  Community Expert
                  March 19, 2022

                  How did this work for you? There is no "preserve alpha" when exporting to h.265. Only when using Vp9 does preserve alpha show in advanced settings. When trying to encode a webm/vp9 to h.265 preserve alpha is not available in advanced settings.


                  @yovern 

                  In Shutter Encoder, we have to enable "Hardware acceleration" under "Advanced features" in order for "Enable alpha channel" to be available farther down the list of advanced features.  This requires that our hardware supports hardware acceleration for H265 encoding, otherwise this option is not available.

                   

                   

                   

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