Converting Fraps RGB video to x264 I444/RGB with MediaCoder

[aufkrawall]

Hello,
to maintain color quality I'd like to convert a Fraps RGB video to x264 with I444 or RGB color space.
I tried the following with MediaCoder:


mencoder.exe" -quiet -of rawvideo -ovc raw -rawvidopts pipe=0x00000000000007C4 -ofps 30 -subcp cp1252 -sub-fuzziness 1 -subfont-autoscale 3 -subfont-blur 2 -subfont-outline 2 -subfont-text-scale 3 -lavdopts threads=2 -vf-add pp=al:f/dr -vf-add scale -vf-add format=rgb24 -vf-add harddup -nosound -mc 0 "D:\Documents\Videos\samples\fraps\original rgb.avi" -o NUL
x264.exe" --no-progress --preset faster --weightp 2 --b-pyramid strict --keyint 250 --min-keyint 25 --non-deterministic --bframes 1 --ref 2 --psy-rd 1:0 --bitrate 1000 --qcomp 0.6 --sar 1:1 --threads 6 --crf 0 --output-csp i444 --demuxer raw --input-res 1280x1024 --fps 30 --input-csp rgb --tff -o "C:\Users\Julian\AppData\Local\Temp\mctemp4924132aedabf2cc.264" -
But it seems result could be better.
Original:
http://www.ld-host.de/uploads/thumbnails/fab3f516a7b33ed2520e18137b936d7e.png (http://www.ld-host.de/show/fab3f516a7b33ed2520e18137b936d7e.png)
x264 I444 crf 0:
http://www.ld-host.de/uploads/thumbnails/1df9a4a9279913d868aa074bddba937b.png (http://www.ld-host.de/show/1df9a4a9279913d868aa074bddba937b.png)

What is going wrong?
My guess is that MEncoder is doing something wrong. If I'd choose another decoder I had to tell it via command line to decode as RGB and not just I420 since MediaCoder's color space options in GUI seem to affect MEncoder only.

Can you tell me what to do exactly?

:thanks:

[aufkrawall]

Any general advice?

[Sirber]

--preset slow ?

[aufkrawall]

I gave it up with MediaCoder.
Instead I gave Simple x264 Launcher a try and it works great, both with I444 and RGB output.

I did a hashcheck of extracted frames of Fraps RGB and x264 RGB input, it coincided.