21 Jul
2015
21 Jul
'15
9:57 p.m.
Hi Carsten,
On Tue, 21 Jul 2015, Carsten Kurz via DCPomatic wrote:
Hi Carl - can you comment on the scaling types offered
in DCP-o-matic?
Is that performed by FFMPEG functions? I tried to look up the more
exotic ones (e.g. 'X'), but did not find all references from here:
https://www.ffmpeg.org/ffmpeg-scaler.html
'X' could be the mysterious 'experimental scaler'?
That's right, they are from FFmpeg. X is "experimental".
I know it's useless for most applications except
'real' experimental
ones, but I am currently missing 'nearest neighbor' or pixel repeat. I
may find other ways to do what I want to do, but, just in case...
FFmpeg does have a nearest neighbour scaler, but it is not included in
DCP-o-matic for reasons that are lost in the mists of time. That being
said I removed the scaling options in v2 so it always uses "bicubic." I'm
not convinced of the need for an option...
Wondering how I could downscale an image series with
the most basic
pixel repeat method. Maybe I have to batch image magick with the -sample
resize option.
We could put the option back, if it seemed sensible.
Leads us to my old issue that I think scaling options
should be under
the content tab and should be made content specific - not under DCP tab.
There would be no problem with that.
And that takes us to v2 where the strict separation of
content and DCP
options in the GUI is broken up (e.g. with audio). Anyone likes to
discuss this?
What options in particular break up the separation?
Regards,
Carl