Can anyone help me turn this upscaling method into an AVISynth script?

[Guernsey]

I am currently looking for some streamlined methods to upscale some game captures without having to leave my house. I found a website that has a decent method that can do that with for old game captures to HD. I am mostly trying to aim for 720/HD but I also want to maintain the aspect ratio. I know my computer is a potato and Chromebook is almost useless but I do not want to always go to the library to use Virtualdub2. What would be a good streamlined version of that method from the via AVISynth script?

[jagabo]

That site uses:

PointResize(960, 720) # Nearest Neighbor in VirtualDub

or

LanczosResize(960, 720) # Lanczos3 in VirtualDub

different than at that web site but good for pixel art retro games:

HQ4x()

Samples of a small image upscaled 4x using the above methods:


[Attachment 70382 - Click to enlarge]

You'll have to provide samples for more details.

[Guernsey]

Here are some samples that I had yet to upscale. I will also post their information:

Information on Sample.avi

General
Complete name :************\sample.avi
Format :	AVI
Format/Info :	Audio Video Interleave
File size :	318 MiB
Duration :	3 min 17 s
Overall bit rate :	13.5 Mb/s
IsTruncated :	Yes

Video
ID :	0
Format :	Lagarith
Codec ID :	LAGS
Duration :	3 min 17 s
Bit rate :	12.1 Mb/s
Width :	320 pixels
Height :	224 pixels
Display aspect ratio :	1.429
Frame rate :	60.000 FPS
Color space :	RGB
Bit depth :	8 bits
Bits/(Pixel*Frame) :	2.804
Stream size :	285 MiB (89%)

Audio
ID :	1
Format :	PCM
Format settings :	Little / Signed
Codec ID :	1
Duration :	3 min 17 s
Bit rate mode :	Constant
Bit rate :	1 411.2 kb/s
Channel(s) :	2 channels
Sampling rate :	44.1 kHz
Bit depth :	16 bits
Stream size :	33.3 MiB (10%)
Alignment :	Aligned on interleaves
Interleave, duration :	17 ms (1.00 video frame)
Interleave, preload duration :	33 ms

Information on Sample 2.avi

General
Complete name :***********\sample 2.avi
Format :	AVI
Format/Info :	Audio Video Interleave
File size :	148 MiB
Duration :	1 min 14 s
Overall bit rate :	16.5 Mb/s
IsTruncated :	Yes

Video
ID :	0
Format :	Lagarith
Codec ID :	LAGS
Duration :	1 min 14 s
Bit rate :	15.1 Mb/s
Width :	320 pixels
Height :	224 pixels
Display aspect ratio :	1.429
Frame rate :	60.000 FPS
Color space :	Y
Bits/(Pixel*Frame) :	3.512
Stream size :	135 MiB (91%)

Audio
ID :	1
Format :	PCM
Format settings :	Little / Signed
Codec ID :	1
Duration :	1 min 14 s
Bit rate mode :	Constant
Bit rate :	1 411.2 kb/s
Channel(s) :	2 channels
Sampling rate :	44.1 kHz
Bit depth :	16 bits
Stream size :	12.6 MiB (9%)
Alignment :	Aligned on interleaves
Interleave, duration :	17 ms (1.00 video frame)
Interleave, preload duration :	33 ms

I want to upscale using the methods that you shown me.

[jagabo]

Example:

AviSource("sample.avi")

# pick one of the following 3:

#PointResize(width*4, height*4)
#LanczosResize(width*4, height*4)
HQ4X()

You'll probably want to ConvertToYV12() at the end for encoding.

[Selur]

There are also some models for 8bit upscaling over at https://upscale.wiki/wiki/Model_Database.
Personally, I prefer PointResize and similar for such content.
(attached samples, two use vsgan models, the other two use point resize and NNEDi3)

Cu Selur

[Guernsey]

What AVISynth program do I use? I currently have AVSPMod or MeGUI?

[jagabo]

Use whatever program with AVS support that you want.

[DB83]

Sorry. But I get the distinct idea that the OP - do correct me if I err - does not have a clue what avisynth actually is. It is if he reads on here of all the avisynth scripts and thinks 'can I use these or somat to my own need ?'

He talks of not wanting to go to a library to use vdub2 yet that is one program (of many) that will load an avisynth script to do the actual encoding.


Avisynth will do, I am sorry to be so blunt, feck all without a supported encoder. AVSPmod is AFAIK only an editor to create a script - not having used it I think it also parses the script to check for errors in the multitude of the options of a particular avissynth command/filtter. And I do not even know if MEGui will accept an avisynth script.


But if your PC is a 'dog' and my own will hardly encode any avisynth script without regular coffee refills you may be, as we say it, 'barking up the wrong tree'

[jagabo]

Both MeGUI and AVSPmod can encode AVS scripts.

[DB83]

^^ That's fairy nuff.

AVSPMod, from the site write-up, describes itself as an 'editor' and I have never used MeGui.


You learn somat every day

[Guernsey]

Do I use Virtualdub2 to export the final video file? Or can it used with any program that supports AVISynth?

[jagabo]

You can use VirtualDub2 or any other encoder that supports AviSynth.

[Guernsey]

Alright.