I recommend that you use Proxy and Preview Scaling if your goal is “easiest to decode/scrub on the timeline” as that is its sole purpose. It does not generate lossless, but you do not need lossless for proxy.
Thank you very much guys. I will try your methods.
I will get back if I have something new.
I knew about proxy I wanted to try if I could create a “one size fits all” file, storage/editing/lowsize. Hence a Lossless with compression but relatively easy to decode. Prior I used cineform at half resolution as editing proxy files are still big if lossless.
Proxy files don’t need to be lossless or high quality. The are just there to make editing easier. You swap back the originals for final quality export . (You might need a higher quality and resolution proxy if you were doing delicate work, and needed to zoom in for accurate placements, those sorts of reason)
But lossless compression won’t produce something “lowsize”, and certainly not with intra encoding . The settings you specified are making it “less” compressed, easier to decode. Basically the largest filesize possible and yet still be losslessly compressed by x264
If you think cineform at half resolution was large in filesize, these files will be much (!) larger than cineform even at full resolution. Probably 5-10x larger. Cineform is a “visually” lossy codec, and usually only the subsampled variant is used (10bit422) .
Short GOP’s on average will cut the size in ~1/2 . But the decoding latency and scrub times suffer. You decide which tradeoffs you want to make. Do you really need something lossless ?
OK I understand, if they are bigger than cineform I am not even going that path.
I thought the compression of x264 would give me better compression than cineform.
I will do what you said. Thank you very much.