Hi,
I think the flow you were talking about is:
original_raw_form -------lossy---->compressed ----decompress---> raw_frames_of_lossy_generation_1 ----lossy---->compressed
where I was asking whether the following flow is possible:
original_raw_form ------lossy---->compressed ----lossless----> further_compressed
Such that uncompressing
futher_compressed and playing would yield the stream:
raw_frames_of_lossy_generation_1
Another one of my threads
here discusses the idea (tl;dr - I don't think it's possible)