[RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

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AJR
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[RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

Hello Donald,

may I know why DGDecNV can cut only in 4px steps? AviSynth support 2px and even 1px if I am correct. Would be big problem to modify DGDecNV to support 2px cropping step ?

Thanks for reply!
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admin
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Re: Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

Sorry but it is not supported by the nVidia driver.
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

So if any of upcoming drivers will change to support 2px cropping you will add it, right?

Did you try ask nVidia guys why they have set limit to 4px cropping step? Do you think it is any kind of hardware architecture limit?
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admin
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

No I didn't ask them and I don't know the reason for the limitation although I could speculate about it.

To be honest, I try to limit my demands on my contact at nVidia to what I see as significant matters. If I get too demanding of their time it can perhaps affect their responsiveness to me. You are of course welcome to approach them about it.
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

Understand.

I would ask them but dont have any personal contact on any nvidia guy.

Also I am not sure how properly compile the question. I dont know their cuda sdk and dont uderstand what part is related to cropping limits... If you will help me build correctly the question I will ask them ;)
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admin
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

Why is this so important to you?
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

I dont like loose more pixel lines of the picture than it is necessary ;)

For example if only 1px should be removed I have to remove 4px, it is too much. With 2px step I would be much more satisfied. Also it will be easier to get better pixel aspect ratio error after resize if I will have smaller steps in cropping.
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Nick007
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by Nick007 »

Why don't you crop with Avisynth? You can crop to mod 2 width/height (Avisynth 2.6). You can crop 1px if you're cropping from two opposite sides. You can crop by 1px if you're resizing to 720p with Spline36. You can FillMargin 1px if you can't crop it.
And I didn't mention the million other things you can do with Avisynth but can't do with CUVID.
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

I know this. But I use private gui which support cutting over DGDecNV and it is very comfortable for me. Make cropping via Avisynth would crack my automated processing ;)
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

You'll have to take it up with nVidia.
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

What API from SDK should I discuss with them ? Which API is responsible for the cropping feature?
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

CUVID.
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

Is or will be DGDecIM able crop in 2px steps??
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

It's too early to know. I haven't experimented with Intel Media cropping/resizing yet.
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

Hope I dont make you angry if I try ressurect this topic :) .

I know you told me that you dont want bother your contact inside nvidia. But I guess your DGDecNV is quite finished and bugfree :) . Nothing much to improve so maybe it is time to ask your nVidia contact about the cropping limitations to 4px steps. And if they plan release any updated version of CUDA SDK wich would add support for cropping in 2px steps.

Thanks for try
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admin
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

The best I can do is allow 2 pixel cropping but subject to the constraint that the width must be mod 4. That way you could crop 2 pixels from both sides but not 2 pixels from one side. Is that good enough for you?
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AJR
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by AJR »

Yes, it would be enough for me :)

Thanks!
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admin
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Re: [RESOLVED] Cropping with 2px step, is it possible with DGDecNV?

Post by admin »

Re-download 2048. Open it and immediately close it (puts new option in the INI file). Then edit the INI file and set Fine_Cropping=1. Advise me if you find any of these:

:bug:
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