On 2021-03-05 10:35, pdr0 wrote:
Mark Filipak (ffmpeg) wrote
'yadif=mode=send_field' is one way to convert fields to frames at the same
frame size and twice the
FR. It does it by repeating fields, but it also adds cosmetics -- it is,
after all, a motion
interpolation filter.
I seek a fields-to-frames filter that does not add cosmetics. In my
pursuit, I look for such a
filter every time I peruse the filter docs for anything. I've yet to find
such a filter.
Do you know of a fields-to-frames filter that does not add cosmetics?
Yadif is not a motion interpolation filter
Okay, not motion interpolation. My bad. I remember "motion adaptive" being used to describe what
yadif does. And there's this: http://avisynth.nl/index.php/Yadif
"...by Michael Niedermayer. It check pixels of previous, current and next frames to re-create the
missed field by some local adaptive method (edge-directed interpolation) and uses spatial check to
prevent most artifacts."
I need line doubling that, as its bottom field, simply duplicates the top field.
[A+b] ==> [A+A] ...if a [b+b] frame is also produced, I'll throw it away.
I know of several ways to do it with a series of filters but they take extra time. A simple,
dedicated line double would be fast and just what I need.
The filter will be applied to a single frame that's isolated via modulo
selection.
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