Avisynth MDegrain very slow

[Dominik2000]

Hello,

I wrote a programm which creates batch files, which I start and they compress my videos to h264. My problem is, that if I add MDegrain2 in my Avisynth script, the processor usage is only 20%-30% and ~1fps. If I remove MDegrain then cpu usage is 100% and ~4fps. This values are on my laptop (Windows 7, i5 2410m and 4gb ram). I know it's not the best setting, but I think it should be a little bit faster.

On my other pc (Windows 8, i7 3770K, 8gb ram) I have the same problem, with about 5fps with MDegrain and 20fps without. I work with Set's Avisynth 2.6 MT newest version.

Here my script:

SetMTMode(5,0)
DSS2("G:\xxx\xxx.mkv")
SetMTMode(2)
Crop(0, 138, -0, -138)
super = MSuper(pel=2, sharp=1)
bv1 = MAnalyse(super, isb = true, delta = 1, overlap=4)
fv1 = MAnalyse(super, isb = false, delta = 1, overlap=4)
bv2 = MAnalyse(super, isb = true, delta = 2, overlap=4)
fv2 = MAnalyse(super, isb = false, delta = 2, overlap=4)
MDegrain2(super,bv1,fv1,bv2,fv2,thSAD=400)

return last

And my batch file:

SET CLI_MKVEXTRACT="C:\Tools\mkvextract.exe"
SET CLI_MKVMERGE="C:\Tools\mkvmerge.exe"
SET CLI_MKVINFO="C:\Tools\mkvinfo.exe"
SET CLI_AVSPIPE="C:\Tools\avs2pipemod.exe"
SET CLI_H264="C:\Tools\x264.exe"
SET CLI_NEROAAC="C:\Tools\neroaacenc.exe"
SET INPUT="G:\xxx\xxx.mkv"
SET INPUTVIDEOSCRIPT="G:\xxx\temp_xxx\video_script.avs"
SET OUTPUT="G:\xxx\xxx_compressed.mkv"
SET X264_PRESET=slower
SET X264_TUNE=film
SET X264_CRF=20
SET LOGFILE="G:\xxx\temp_xxx\xxx.log"

%CLI_MKVEXTRACT% chapters %INPUT% --redirect-output "G:\xxx\temp_xxx\chapters.xml" 
%CLI_AVSPIPE% -video %INPUTVIDEOSCRIPT% | %CLI_H264% - --input-res 1920x804 --output "G:\xxx\temp_xxx\video.264" --preset %X264_PRESET% --tune %X264_TUNE% --crf %X264_CRF%
%CLI_MKVEXTRACT% tracks %INPUT% 0:"G:\xxx\temp_xxx\audio_0.music" 

%CLI_MKVMERGE% --title xxx_compressed -o %OUTPUT% --chapters "G:\xxx\temp_xxx\chapters.xml" --display-dimensions 0:1920x1080 "G:\xxx\temp_xxx\video.264" --track-name 0:"English" --language 0:eng "audio_0.music"  --default-track 0:1

Can you help me please?

Thanks
Dominik