We have 8K source videos and have extracted all alignments from the source video along with our training faces.
When converting it's almost impossible to run at 8K-->8K.
So we tried 8K-->4K (50%) output scale. This works better but it gets to a point where it runs out of memory - as if there is not a complete garbage collection going on somewhere.
But the real question I wanted to ask is... we have extracted the alignments from an 8K input video. If we downscaled the source video to 4K before convert (using ffmpeg) - could these alignments be used on the 4K video? Or do we need to re-run the downscaled 4K version through extraction afresh?
Thank you for your tips, help, and suggestions.