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jjdd	01-27-2020 07:02 PM

ConditionalReader Avisynth usage?

Hi trying to understand ConditionalReader must i use ScriptClip to get it to work

i did notice that a movie that i have does not have same phase shift throughout the film i have to change it about 5 times

Code:



AviSource("\\CAPTURE2\Capture_Dator2\tpta4444.avi").AssumeTFF().ConvertToYV12(interlaced=true).SeparateFields()

#trim(myvar,0).Weave() #did not work at all

ScriptClip("trim(int(myvar),0)").Weave() # did work but not corectly



ConditionalReader("D:\field.txt", "myvar", false)

inside my field.txt

Code:

Type int

Default 1



R 24511 59205 0

R 70170 70200 0

R 120673 170057 0

R 207332 270254 0

I know I can do it in a different way but this look maby easier if i can get it to work :)

jjdd	01-27-2020 08:36 PM

i did get it to work i think :)

Code:

AviSource("\\CAPTURE2\Capture_Dator2\tpta4444.avi")

ScriptClip(last, "AssumeTFF().SeparateFields().trim(myvar,0).Weave()")

ConditionalReader("field.txt", "myvar", false)



return last

lordsmurf

01-28-2020 04:18 AM

What is the use case? I'm not clear on what it does, what you're doing. :hmm:

jjdd	01-28-2020 05:03 AM

i think it´s called phase shift or temporal field alignment on this movie i have to shift it 5 times when it´s not correct it looks like the film is more interlace than it is

here is a example how it is corrected but on this film it was sometimes correct and sometimes not so i have to switch between Trim(0,0) and Trim(1,0) on some part of the movie

Code:

AVISource("film.avi").AssumeTFF()



# 'phase shift'

SeparateFields().Trim(1,0).Weave()

maybe something weird did happened when i did record it from the analog TV signal about 25 years ago
or it´s in the movie

here msgohan explain phase shift to me when i did not know how to fix it in post 35 http://www.digitalfaq.com/forum/vide...quality-2.html

here in post 4 you can see how it looks before and after http://www.digitalfaq.com/forum/vide...l-filters.html

msgohan

01-31-2020 08:47 AM

For a PAL movie, it could easily be 2:2 pulldown if the phase shifts happen at scene cuts. TFM handles this automagically, although as with most auto processes it's not perfect. It can sometimes pick the wrong field matches.

Code:

TFM(mode=0,pp=0,micmatching=0)

If it's happening randomly in the middle of shots, there is probably something in your capture chain causing dropped or inserted fields. Myself and others have noticed this effect with various TBCs.

jjdd	01-31-2020 10:11 AM

msgohan Thanks i have to test that

did ordered one more capture device from ebay again it´s Matrox MX02 Le MAX + PCIe host adapter + PCIe host adapter so i can use it on my old Dell XPS M1710 Laptop

jjdd	01-31-2020 12:45 PM

i did mean Matrox MX02 Le MAX + PCIe host adapter + ExpressCard/34 adapter

info about it https://www.matrox.com/video/en/supp..._le_max/specs/

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