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Old 7th December 2002, 20:18   #81  |  Link
Marc FD
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absolute difference for each pixel. no sad.
no adaptive settings (only quant-adaptive)

i've finished the MMX algo, i just want to make a 3d avisynth filter with for fun. i'm going to implement it. i hope it'll improve a _lot_ speed.
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Old 7th December 2002, 21:21   #82  |  Link
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You make the choice per pixel?
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Old 7th December 2002, 21:23   #83  |  Link
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yes, i know i could do more complex things but i feel per-pixel is good ^^
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Old 16th December 2002, 16:39   #84  |  Link
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have i missed a post or is there still no version for non-p4? if not: (athlon) if there is: and pls drop me a line.
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Old 16th December 2002, 19:01   #85  |  Link
trbarry
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Quote:
have i missed a post or is there still no version for non-p4? if not: (athlon) if there is: and pls drop me a line.
No version of DctFilter?

Mine should have no processor requirements above mmx though it will do special code for higher ones. Note my version supports Avisynth 2.5a YV12 only though SansGrip posted a more general one above for YUY2 and other releases. So if it's crashing make sure you've got the right one.

- Tom
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Old 29th January 2003, 22:44   #86  |  Link
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You said that you didn't add "init2" to DctFilter beccause Sansgrip have worked on it, and it will be "better".


But DctFilter works already with 2.5 alpha. So is it possible that you just add "init2" to the 2.5alpha ?

So we can use this filter without having to wait "too long" for Sansgrip
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Old 29th January 2003, 22:59   #87  |  Link
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It seems more likely that you are not using the later 2.5 alpha or beta that requires the init2.

Or else you didn't get it from my site.

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Old 30th January 2003, 08:48   #88  |  Link
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I think Seewen asked if you could compile the old (current) YV12 version with init2 so that he (we ) could use it with AVS2.5 beta.
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Old 30th January 2003, 11:11   #89  |  Link
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I get it from your site ( trbarry.com/dctfilter ), but there's no "init2" in it.

SO it works very well with Avisynth 2.5 from 18.1.03 , but not with older versions
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Old 30th January 2003, 17:11   #90  |  Link
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I'll try to work on DctFilter today. I don't want to lose the YUY2 support but it really shouldn't be much work to make it function properly with VS6, 2.5 beta, etc.

And I had some other ideas I'd like to add to it later so it's time for me to get back to it.

Hopefully I'll post one by tonight if nothing else comes up.

- Tom
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Old 30th January 2003, 20:18   #91  |  Link
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Quote:
Originally posted by trbarry
I'll try to work on DctFilter today. I don't want to lose the YUY2 support but it really shouldn't be much work to make it function properly with VS6, 2.5 beta, etc.

And I had some other ideas I'd like to add to it later so it's time for me to get back to it.

Hopefully I'll post one by tonight if nothing else comes up.

- Tom
That's really nice

Beccause this filter is really missing ( DctFilter & MpegDecoder-working-with-Mpeg1, and it will be great )
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Old 31st January 2003, 05:57   #92  |  Link
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Sort of at the 11'th hour

... but get it at www.trbarry.com/DctFilter.zip .

It has support for Avisynth 2.5 beta, VS6, YV12, and SansGrip's YUY2 code. (Thank's SansGrip )

No other new features or changes yet.

- Tom
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Old 31st January 2003, 06:56   #93  |  Link
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I have a question, which I think is related. DCT is used in many video compression standards, such as MPEG-4 and MPEG-2. My question is, couldn't the MPEG-4 compressor benefit from the MPEG-2 files already containing quantizing information. Isn't there alot of efficiency lost in making a locked quantizer 2 file on scenes that have high quantization done on them. Couldn't there be a way to read the MPEG-2 file's quantization/DCT information per frame so that better decisions could be made in the MPEG-4 compression process? For instance, if a frame in the original MPEG-2 file has high quantization and you've used a locked 2x quantizer, that increases the filesize for no reason. I realize that you can achieve proper compression where quantizer 2 will be used in the appropriate situation with the right settings, however I don't think it would be "dead-on". What I'm saying I guess is to add quantizer decisions based on the MPEG-2 frames quantization/DCT information.
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Old 31st January 2003, 09:16   #94  |  Link
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Thank you very much

You've done it very fast, and so far it works perfectly
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Old 31st January 2003, 14:28   #95  |  Link
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optimist (falling past 20'th floor): "So far, so good."

Bulletproof -

Dunno. Maybe someone else can answer that. But there is a thread now in the development forum about transcoding and shrinking MPEG2 files.

- Tom
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Old 31st January 2003, 16:33   #96  |  Link
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Thank you maestro
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Old 31st January 2003, 19:59   #97  |  Link
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Thanks Tom!
I'm just starting a 120min 1CD encode keeping the 350mb ac3 audio .
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Old 31st January 2003, 21:17   #98  |  Link
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I'm afraid to ask.
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Old 31st January 2003, 22:38   #99  |  Link
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Ah, of course I was kidding Tom , but I just want to report that, with the script below,

-----------------------------------
mpeg2source("C:\movie\movie.d2v")
crop(12,16,-8,-16)
Trim(16000,17000) # a short bright scene from U-Turn
BicubicResize(512,272,0,0.5)
DctFilter(1,1,1,1,1,.5,.5,0)
-----------------------------------

and using constant quantizer 2 with XviD Koepi's latest (and AviSynth 2.5 beta), the filesize is 20774kb whereas without DctFilter in the same script the filesize is 25062kb.

Using b-frames 3-100-200, the filesize drops to 16658kb, without losing much from its visual quality.

I don't know what if you add some UnFilter to the script to remove the stairstepping artifacts, etc. ?!

regards,
iago

Btw, why are you afraid Tom? The photo is taken after the last plastic surgery I had. I dared not send a formerly taken one .
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Old 31st January 2003, 22:43   #100  |  Link
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@iago:

Is this really you?
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