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eLeKtriK EyE
18th October 2003, 11:11
Hello ppl :)

It seems that The Animatrix is the toughest movie I 've ever tried to encode. I 've tried tens of different approaches but none of them was good enough. So I 'm seeking for your help. Here we go:

First of all, which resolution should I use? Gordian Knot indicates that if I'm going for 1 cd (my case, i.e. 912 kbps), I should use less than 544x224. This is 60.5% of the compressibility test. Others say that I should use more because downsizing at anime is pretty bad, while others say that I should downsize even more (abt. 430x176) in order to have a better result at the bitrate given. I tried all three cases, all of them look bad when I preview the movie fullscreen.

Secondly, I have the dilemma: Which resize filter? Almost always I use Lanczos, but is Lanczos a good choice for anime @ 912 kbps? Again, I tried all resize options and only Neutral Bicubic SEEMS to produce a slightly better quality (less artifacts near edges).

Another issue is the Codec Options. Should Psycho Visual Enhancements be used for anime? I usually set them to "Fast" and never have any problem but I 've heard that for anime it makes picture worse. Then we have GMC and Q-Pel. I never use Q-Pel and I use GMC rarely. Now? I 've read somewhere that Q-Pel is recommended for anime. Is it true?

Finally, I tried to use some avisynth and/or virtualdub filters to remove the artifacts but they did more harm than good to my picture.

If anyone has encoded The Animatrix and had a good result, please post settings.

P.S.: Using PAL version of The Animatrix, no Interlacing problems. Also using DVD2AVI 1.77.3, Gordian Knot 0.28.5, VirtualDub 1.5.6, DivX 5.1

Greetz from Greece :)

SeeMoreDigital
18th October 2003, 14:34
Hi eLeKtriK EyE, and welcome to the forum.

Personally I can't understand why you feel this DVD should be tough to encode to DivX!

A search for the film's specification revealed that the PAL version of the DVD is just 90 mins. Which I would have thought would make a very good looking 1 CD encode.

Now, as my search did not reveal the aspect ratio of the DVD I would suggest you try generating an 'full pixel' (720x576/480) anamorphic encode. With audio at 90kbps or 128kbps. Either audio option should leave you plenty of bitrate for the video!

Cheers

eLeKtriK EyE
18th October 2003, 16:15
Originally posted by SeeMoreDigital
Hi eLeKtriK EyE, and welcome to the forum.

Personally I can't understand why you feel this DVD should be tough to encode to DivX!

A search for the film's specification revealed that the PAL version of the DVD is just 90 mins. Which I would have thought would make a very good looking 1 CD encode.

Now, as my search did not reveal the aspect ratio of the DVD I would suggest you try generating an 'full pixel' (720x576/480) anamorphic encode. With audio at 90kbps or 128kbps. Either audio option should leave you plenty of bitrate for the video!

Cheers
Hi and thanks for your respond.
My feeling that the DVD is tough to encode is because I've tried many approaches that in other movies worked perfectly, but in this one was very dissapointing.
As for the aspect ratio, it is 2.35:1.

The bitrate left for encoding is 912 kbps (for 1 cd encode).

I will try the 1:1 option you suggested and will post results.

eLeKtriK EyE
18th October 2003, 16:36
Hi again. As I expected, using a full resolution was not the solution in my problem as 912 kbps is not enough to encode at such high resolution.
You can find a screenshot of the movie at the following address:
http://users.chan.sch.gr/aikoukou/Animatrix1.jpg
and the corresponding avs:
http://users.chan.sch.gr/aikoukou/Animatrix1.avs

My best approach (for the time being) is the following:
http://users.chan.sch.gr/aikoukou/Animatrix2.jpg
and the corresponding avs:
http://users.chan.sch.gr/aikoukou/Animatrix2.avs

Anything to suggest to make the result better?

SiXXGuNNZ
18th October 2003, 18:25
mine looks good, using koepi's stable

Title: The.Animatrix.DVDRip-XviD.avi
Duration: 01:41:06 (145,447 fr)
Video Codec: XviD
Resolution: 592x256 (2.313:1) [~14:6]
Video Bitrate: 831 kb/s
FPS: 23.976
Qf: 0.229 bits/pixel
Audio Codec: 0x0055(MP3) ID'd as MPEG-1 Layer 3
Audio Bitrate: 128 kb/s (64/ch x 2 ch) VBR LAME3.93
Fs: 48000 Hz

manono
18th October 2003, 21:45
Hi-

Yeah, I didn't think there was anything particularly difficult about it, either. I used 608x256 and VBR MP3 Stereo at 160 KBPS (average 131 KBPS). So the video bitrate was 826. It does have almost 8 minutes of end credits, though, so I'd suggest giving them a higher quant (I used 10) in order to free up bits for the short films.

SeeMoreDigital
18th October 2003, 23:05
Well, without doubt 'best approach (for the time being)' is way better than your previous encode.

You could try 720x416, which is a 'true frame' 16:9 aspect ratio image pixel frame size (enabling you to also keep the black mattes)!

Or you could try 720x304, which will crop 'all' the matte and a small bit of the image away!

However, if you've got some time on your hands and you want to experiment, try encoding your DVD to 1024x576 (true 16:9 with mattes) or 1024x432 (true 16:9 without mattes) or even 768x432 (16:9 without mattes, especially for a 2.35:1/2.40:1 source)!

You may find that the latter frame size a useful starting point. I've been experimenting with it for the last couple of weeks or so and have found that it works very well.

Indeed I have found that because the total number of pixels does not exceed 414,720 (720x576=414,720), my Xcard can plays the encodes 'really' well. As could most DivX capable stand alone players I suppose!

I love to experiment.... Cheers