Wishlist: Graph presets for different source media types

[bavc]

Wishlist: Graph presets for different source media types

[JeromeMartinez]

Not difficult to implement but I need a list of presets.

[dericed]

We already have one preset (current default), but I'll send up more.

[pjotrek-b]

Just from the top of my head, a few examples:

Digibeta dropouts:
Y, Diffs, Sat

Unclean cuts:
Y, Diffs, MSEf

Letter-/Pillarbox detection: (for aspect ratio mix)
Y, Diffs, CropW, CropH

[dericed]

Do you find BRNG more effective than SATMAX for digibeta dropouts?

[pjotrek-b]

I'm currently at home, where I don't have test material for this. As far as I remember an the tests I've done at work, all Digibeta dropouts I've checked showed clear peaks in BRNG, which the vectorscope clearly confirmed.

[pjotrek-b]

I've checked again at work, and my memory was wrong: They definitely show up more clearly on SATMAX. There's a different kind of artefact on Digibeta that stands out in BRNG, but is also clearly visible in SATHIGH.

That artefact looks as follows:

So I revoke everything I've said before about BRNG for Digibeta dropouts. SAT MIN/MAX it is. ;)

[dericed]

SATHIGH would only show a digibeta dropout is it was so severe it caused more than 10 percent of pixels to show illegal color, which is one bad digibeta dropout. SATMAX will show small and large digibeta dropouts clearly. SATMIN is somewhat silly to have since there will almost always be at least one pixel with no saturation. A SATMIN above zero would be rare, maybe in computer animation.