I am very happy to see kdenlive 22.08.0 has finally made its way to render alpha video properly!
So here are my prores codec formats.

PRORES 422 for non alpha and PRORES 4444 for alpha render.

Working perfectly with kdenlive 22.08.0 appimage. Just create presets with below strings using edit render preset button at the bottom.

Prores 422:

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f=mov acodec=pcm_s16le vcodec=prores_ks vprofile=3 vendor=ap10 pix_fmt=yuv422p10le qscale=0 channels=2 real_time=-1 threads=0

Prores 4444:

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f=mov vcodec=prores_ks qscale=0 acodec=pcm_s16le vprofile=4444 vendor=apl0 pix_fmt=yuva444p10le mlt_image_format=rgba vf= unpremultiply=inplace=1 channels=2 real_time=-1 threads=0

you can add these 2 present directly on https://store.kde.org/p/1333300 .. using https://www.pling.com/ (make sure to found correct category)

bartoloni wrote:you can add these 2 present directly on https://store.kde.org/p/1333300 .. using https://www.pling.com/ (make sure to found correct category)

Thanks will do!