Using SetMTMode with QTGMC causes artifacts

[brassplyer]

Tried running SetMTMode with QTGMC deinterlace on DV avi and it causes intermittent brief video and audio static. Without SetMTMode the processed file doesn't have issues. Tried various settings within the SetMTMode command, nothing seems to eliminate the problem.

Any ideas what could be causing this?

Thanks.

[Selur]

a. a deinterlacer should not influence the audio at all,... (it's video filter)
b. works fine here using Avisynth 2.6a4 MT:

SetMemoryMax(768) SetMTMode(3,0) # change MT mode
 LoadPlugin("G:\Hybrid\avisynthPlugins\LoadDll.dll")
 LoadDll("G:\Hybrid\avisynthPlugins\libfftw3f-3.dll")
 LoadDll("G:\Hybrid\avisynthPlugins\fftw3.dll")
 LoadCPlugin("G:\Hybrid\avisynthPlugins\yadif.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\ffms2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\VerticalCleanerSSE2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\TDeint.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\SSE2Tools.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\RepairSSE2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\RemoveGrainSSE2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\nnedi3.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\nnedi2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\nnedi.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\mvtools2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\mt_masktools-26.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\FFT3DFilter.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\eedi3.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\EEDI2.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\DirectShowSource.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\dfttest.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\AddGrainC.dll")
 LoadPlugin("G:\Hybrid\avisynthPlugins\LSMASHSource.dll")
 Import("G:\Hybrid\avisynthPlugins\QTGMC-3.33.avsi")
 # loading source
 LWLibavVideoSource("H:\TestClips&Co\interlaced_mod2crop.mpg",cache=false,dr=true,repeat=true)
 # deinterlacing
 SetMTMode(2) # change MT mode
 AssumeTFF()
 QTGMC(Preset="Fast")
 SelectEven()
 #distributor()
 return last

-> assuming you used SetMTMode correctly and your filters are up-to-date, I would recommend to:
1. check if the source if okay at the scenes where you get these statics
2. check the tools that run during you encoding ('live lock'? Virus scanner interfering?...)
3. check the general system stability (overclocked? heat problem? memory health? ...)

---
Other than that posting a sample and the avisynth script you used might help for others to try to reproduce the 'artefacts' you encounter. (Artefacts might not be caused by QTGMC, itself but might be due to another filter not working well with MT the way you use it,..)


Cu Selur

Ps.: the avisynth plugin collection (including avisynth) I use can be downloaded as a whole over at my side as 'Avisynth extension'.

[Baldrick]

Why a new similar thread? COntinue in https://forum.videohelp.com/threads/356950-What-could-be-causing-QTGMC-deinterlaced-vid...65#post2250265