Game render, quality concern

[mikecks]

Hi there, I'm new to rendering clips for this particular game but I have rendered this using 4500 bitrate and the following for xvid, any ideas on how I can improve on the quality in general as the file size is getting quite large.

*edit*

Frapsed at 1650x1050 and encoded at 1280x720 if that helps any, 30 FPS.

program -i "input" -pass2 ".stats" -bitrate 4500 -kboost 100 -chigh 30 -clow 15 -overhead 0 -turbo -max_key_interval 250 -nopacked -vhqmode 4 -qpel -closed_gop -lumimasking -imin 1 -pmin 1 -bvhq -bquant_ratio 162 -bquant_offset 0 -bmin 1 -threads 1 -o "output"

http://files.filefront.com/2LoL+muxedavi/;13633238;/fileinfo.html

Thanks a lot for any and all help.

[pelle412]

I wouldn't use min quantizers of 1 for example. They are only there to help avoid undersized encodes. Use min quantizer of 2 instead.

Does qpel help for you? If not, skip it.

I can't access your video so I can't see how it looks.

Is your average I/P frame quantizers low? If so, you could probably bump bratio and boffset to defaults.

[B@Ron]

I would remove -lumimasking (adaptive quantization) and probably in Quant. type: MPEG

[DigitAl56K]

Unless you are applying a crop that frame conversion represents an aspect distortion.

[pelle412]

It may help if you posted a clip of the source video. We could try to help out better if we knew what you were dealing with.

What is it exactly that you want to improve? Quality without regards to filesize, or decent quality at lower filesize?