Hope to have an answer here because I got nothing from older threads.

Since a jit.matrix is ARGB how jit.record manages video export when you use prores422 (no alpha) Does jit.record avoids plane 0 then bounce 123 or does it takes planes 012 as RGB for the export?

I have no software on hand nor specific knowledge allowing me to understand what happens from software to sofware about channels, codecs and video export/import.

I'm bouncing video from Jitter in order to use them as artnet data inside openframeworks

Since a jit.matrix is ARGB how jit.record manages video export when you use prores422 (no alpha) Does jit.record avoids plane 0 then bounce 123 or does it takes planes 012 as RGB for the export?
And what for a prores4444 ?

I have no software on hand nor specific knowledge allowing me to understand what happens from software to sofware about channels, codecs and video export/import.

I'm bouncing video from Jitter in order to use them as artnet data inside openframeworks
OfColor() is RGB(A) structured.
I can't get what I want ... :(

Hello,
Hope to have an answer here because I got nothing from older threads.
Since a jit.matrix is ARGB how jit.record manages video export 

jit-record-channel-sorting

if the selected jit.record @codec attribute supports an alpha channel (e.g. prores4444 for avf engine, or animation for viddll engine) then the alpha channel will be written from the incoming matrix alpha plane (plane 0). otherwise (e.g most other codec) then the alpha plane is simply ignored.

no idea what happens with your other software.

jit.record channel sorting