On 01/27/2021 05:47 PM, Carl Eugen Hoyos wrote:
Am Mi., 27. Jan. 2021 um 02:03 Uhr schrieb Mark Filipak (ffmpeg)
<[email protected]>:
ffmpeg -i SOURCE -map 0 -filter_complex "split[1][2], \
[1]telecine=pattern=55, select=not(eq(mod(n\,5)\,2))[3], \
[2]minterpolate=fps=60000/1001:mi_mode=mci=mc_mode=obmc:scd=fdiff:scd_threshold=10,
\
select=eq(mod(n\,5)\,2)[4], \
[3][4]interleave" \
-codec:v libx265 -x265-params "crf=16:qcomp=0.60" -codec:a copy -codec:s copy
TARGET
Since others may read this:
The command line makes little sense, you should either use
telecine or minterpolate.
Carl Eugen, you surprise me. I'm sure you see what I'm trying to do, so why the
angst?
First, let me admit that since I started this thread (following weeks of experimentation) I decided
to simply try this: 'minterpolate=fps=60000/1001' to see what it would do. I was amazed.
If minterpolate is Paul's work, then Paul is a f'ing genius.
I've since spent a couple of days playing with minterpolate and have found that
this:
'minterpolate=fps=60000/1001:mi_mode=mci:mc_mode=obmc:scd=fdiff:scd_threshold=10:vsbmc=1:search_param=20'
is astounding.
Nonetheless, I'd still like to generate a 60 FPS transcode that is visually equivalent (as closely
as possible) to 24 pictures/second by replacing the combed frame (i.e. n%5==2) by an interpolated
frame -- hence the filter graph you loathe.
For that n%5==2 frame, here's what I sought (and did not find):
Sobel of line y: ______/\_____________/\_________
Sobel of line y+1: __________/\_____________/\_____
Desired output:
line y: ________/\_____________/\_______
line y+1: ________/\_____________/\_______
I could find this:
line y: ______/\_____________/\_________
line y+1: ______/\_____________/\_________ (aligned to top line)
and I could find this:
line y: __________/\_____________/\_____ (aligned to bottom line)
line y+1: __________/\_____________/\_____
but I could not find this:
line y: ________/\_____________/\_______ (aligned to mean)
line y+1: ________/\_____________/\_______ (aligned to mean)
One reason I might -- MIGHT -- prefer telecine55 is that the original frames are recoverable from
the transcodes -- but admittedly, that's not much of a reason, is it? Another reason is that the
transcode is much, much quicker than 'minterpolate=fps=60000/1001' and somewhat smaller.
There you have it, Carl Eugen. Please stop trying to make the world think I'm
feeble minded. :-)
Okay?
Regards,
Mark.
--
Someone's sneaking in and turning up the range so that my food burns.
I'm sure of it.
And the older I get, the more sure of it I become.
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