Avisynth preview error:

[kingcrimsonster]

1. load source
2. QTGMC (Avisynth)  set "refined"
3. Press Avisynth Preview + 'Filter view enabled'
My config
Avisynth 32 bit
No Avisynth during CropView: enable
No Avisynth during Preview: disable

[Selur]

1. load source
2. QTGMC (Avisynth) set "refined"
3. Press Avisynth Preview + 'Filter view enabled'
My config
Avisynth 32 bit
No Avisynth during CropView: enable
No Avisynth during Preview: disable

I tried to reproduce the issue by:

1. Starting Hybrid
   
2. Changing 'Filtering->Support' to 'Avisynth'
   
3. Loading a an interlaced source (using Base->Open File)
   
4. Setting 'Filtering->(De-)Interlace/Telecine->QTGMC Avisynth->Preset' to 'Custom'
   
5. Setting 'Filtering->(De-)Interlace/Telecine->QTGMC Avisynth->Source matching' to 'refined'
   
6. Enabling 'Filtering->Filter view'
   
7. Pressing the 'Filtering->Avisynth preview'-button and waiting,...
   
8. Avisynth Preview didn't open and the normal log showed:
   
   Avisynth preview error: -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1046798796 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072 -> Could not allocate video frame. Out of memory. memory_max = 1073741824, memory_used = 1049401036 Request=13187072  could not get PVideoFrame data (0)
9. Disabling 'Filtering->Filter view' and pressing the 'Filtering->Avisynth preview'-button while looking at the windows taks manager showed that avisynth was using ~1.8GB of RAM.
   Using Avisynth 64bit with 'Filtering->Filter view' enabled showed that avsViewer requires 47010,4MB of RAM.
   -> Nothing I can do about this 32bit applications simply can't use those settings and allocate that much RAM.
   So, how about changing the settings?
   Settings EdiThreads to 1 didn't lower the RAM usage, so that probably doesn't really help.
   Disabling MT lowered RAM usage to 2GB on 64bit and to 1GB on 32bit. (1.2 GB with EdiThreads at 2)
   => Disabling MT by enabling 'Filtering->Avisynth->Misc->Miscellaneous->Disable MT' works fine here.
   (there might be other ways to lower the RAM usage by changing other options)
   
   Good thing is I did find that I forgot to copy some files to the 64bit avisynthPlugins folder.
   -> I'll compile a new dev version (+ send you a link via PM once the build is ready an uploaded).
   So, you can either use 64bit Avisynth (which lacks a few filters which are not available as 64bit versions) or stick with 32bit Avisynth and disable MT.
   
   Cu Selur

[kingcrimsonster]

Here's the promised link to a current dev version with which I used Avisynth 64bit and your settings:

using Avisynth 64bit: when press :Crop view" or  "Avisynth preview" appears error

LoadPlugin-Error: 'C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\nnedi2.dll' does not exist!

I try uncheck "Resizer" box or set another plugin - does not help.
"Preview/CropView:" not working (preview window appears and closed)  in both modes: check or uncheck Crop view: box.
Disabling MT does not help.

using Avisynth 32bit: the same problemsю
Disabling MT does not help.

[Selur]

Accidentially compiled and uploaded an old version. :/
-> will send you a new link in a few minutes.
If that dev version doesn't help I have no clue since I can't reproduce the issue with the settings I mentioned.