Fixed res for encoding or follow compression test?

[BluDChyLD]

Using compression test results my resolution is usually in the 4-5 hundered range when encoding a film. Alot of people are asking why I have such a low res and recommend just sticking with a fixed one regardless of the film. Most say about 512 or 640... What do you guys think?
BluDChyLD

[tiki4]

Since December I did all my movies using GKnot. This program is a real fortune to all that are not completely in the SBC with Nandub (Thanks WEF!).
Regarding your question. I must admit I often tried to follow the compressibilty check's results but then also ignored it quite often. I got a lot of movies where the test recommended resolutions of above 640 x ... I never went over 640 horizontal resolution. On the other hand there were movies where comp check gave something like 400 and something horizontal. So I also didn't go beneath 592 x ...

To explain this a little bit further: I always aim for a 2 CD rip including English and German MP3 soundtrack (with lame --alt-preset standard). Sometimes the movies compress too well (in DivX 4) and you end up with more than 100 % in the comp check. When that happened I usually ignored the comp check and went for 640 horizontal resolution. If on the other hand I got something smaller than 45 % or so I tried to stick with 592 horizontal and played around with the settings in the AVS file. Usually I chose then another Resizing filter. I must admit I'm encoding most movies more than one time until I'm satisfied (I hate those macro blocks). The reason to get a file with 592 horizontal or larger is that I use a screen resolution of 1024 x 768 and I think one can see artifacts of the upscaling if the video resolution gets too small. In the good old days where I still used FlasKMPEG I always used 592 x 448 which seemed to work in many (but not all) cases. That's just my experience. Maybe other people can provide their own opinion here. In the end it's your eyes that decide.

Regards,

tiki4

[HotSpur]

I would say it's a matter of personal preference, I never go below 512xXXX, I think the quality will suffer for me since I tend to watch my rips at fullscreen in media player @ 1280X1024 res. I just add another cd in order to bump up the resolution of the movie plus increase the bitrate and maybe go higher with audio also. I use GKnot compression test for divx 3 and adjust the movie accordingly.

I'm not exactly sure of your question, does it make sense to stay at one resolution? You could definately do that, but there are a lot of other factors that come into play when choosing your res. Do you want to aim for one cd rips? If so you should let the compressibility check determine your res because this is the 'rough' quality estimator of your movie. I'm sorry if you know all this already, I wasn't sure :)

[tiki4]

Hi,

if you don't care how many CDs you get in the end as long as you get a decent quality, then you can stick with a fixed resolution (say 640xXXX). So you just vary your number of CDs with respect to the compressibility of your movie.

If you aim for always 2 CDs like I try to I thinks it's best to vary your resolution to get the best possible quiality.

So, which parameter you tweak is up to your own decision.

tiki4