Better decoding with DGDecNV ?

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Nico83500
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Better decoding with DGDecNV ?

Post by Nico83500 » Thu May 02, 2019 3:51 pm

Hi,
I would like to know if DGDecNV provides a better decoding quality than FFmpegSource2 or other Avisynth filter ? Just to decode without using any other function.
I don't have a Nvidia card to try but I'm a DGDecIM user and it was a great tool.
Thank you !

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admin
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Re: Better decoding with DGDecNV ?

Post by admin » Thu May 02, 2019 5:03 pm

All decoders that operate correctly produce the same output. Where you might gain is in performance, robust random access, fast deinterlacing and resizing, and the included CUDA filters. DGIndexNV is also useful in its own right for stream analysis and demuxing of audio and subtitles.

Nico83500
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Re: Better decoding with DGDecNV ?

Post by Nico83500 » Fri May 03, 2019 1:47 am

Thank you, so I don't need to buy a Nvidia card in order to just decode without treatment.
If I want to try it, is there a trial version of DGDecNV ?
Thank you.

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DJATOM
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Re: Better decoding with DGDecNV ?

Post by DJATOM » Fri May 03, 2019 6:18 am

No, it's impossible w/o card as it relies on HW decoder by NVidia.
There is no trial for DGNV, I believe $15 is not that much for you.

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Re: Better decoding with DGDecNV ?

Post by admin » Fri May 03, 2019 9:38 am

$15 is not much but he also needs to buy an nVidia card.

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DJATOM
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Re: Better decoding with DGDecNV ?

Post by DJATOM » Fri May 03, 2019 11:52 am

admin wrote:
Fri May 03, 2019 9:38 am
$15 is not much but he also needs to buy an nVidia card.
Indeed. And probably 1660 or better, if he needs max performance. 1650 looks castrated a bit, but probably fine for decoding.

Nico83500
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Re: Better decoding with DGDecNV ?

Post by Nico83500 » Fri May 03, 2019 12:41 pm

DJATOM wrote:
Fri May 03, 2019 6:18 am
No, it's impossible w/o card as it relies on HW decoder by NVidia.
There is no trial for DGNV, I believe $15 is not that much for you.
You're right but I said I don't need a nVidia card because I'll probably not use DGDecNV... If decoding without treatment is equal to FFmpegSource2 or other filter, it's useless for me.
And no $15 is not that much ;)

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Re: Better decoding with DGDecNV ?

Post by admin » Fri May 03, 2019 4:41 pm

Nico apparently does not care about performance.

Nico83500
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Re: Better decoding with DGDecNV ?

Post by Nico83500 » Mon May 06, 2019 3:27 pm

A last question : if I want to downscale 4K to 1080p and keep HDR with DGDecNV, is a GTX 1050 sufficient to do that ?
Thank you an thank you for your advice.

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Re: Better decoding with DGDecNV ?

Post by DJATOM » Mon May 06, 2019 5:39 pm

I didn't tried, but probably you can decode and resize with any suitable decoder and set mastering data during encoding process. It should remains the same (at least there is no difference on non-resized tonemapped UHD frame, then resized to 1080p and bicubic-resized UHD to 1080p and then tonemapped).

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