Selur's Little Message Board

Uploaded a new dev (Hybrid_dev_2025.07.20-161323) which hopefully helps.
Deinstall old Hybrid before installing it.
=> let me know if this version works for you.

Cu Selur

Yes, no preview window with no filters. I've been using progressive source material for the past few weeks, it's the same case - no preview.

Will report back shortly on the new dev, thanks again for trying to fix this.

---

Sadly it's still the same - the preview window pops up displaying grey, then the window quickly closes.

Hmm,.. running out of ideas.

It can't be:

• caused by libmvtools like I first assumed, since the latest dev only comes with the older libmvtools.
  
• that vsViewer doesn't find the portable Vapoursynth (that comes with Hybrid), since the latest dev comes with a vsviewer.config and properly displays the version info.
  
• any other filtering, since you checked that Vapoursynth Script View does not show that anything aside from the source filter:
  
  Code:

  # loading plugins
core.std.LoadPlugin(path="<Hybrid>/64bit/vsfilters/SourceFilter/LSmashSource/LSMASHSource.dll")
# Import scripts
import validate
  gets loaded.
  
• a general Windows 10 issue since it does work fine on my updated Windows 10 laptop.
  

So it's either:

• the source filter,
  
• some general Vapoursynth issue, or
  
• something interfering (could be a background service)
  

What happens if you:

1. create a test.vpy file with the following content:
   
   Code:

   # Imports
import vapoursynth as vs
# getting Vapoursynth core
import sys
import os
core = vs.core
# loading plugins
core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/LSMASHSource.dll")
# Source: 'S:\Nasties-2398-IN\Trailer 28 MinutesHB.mp4'
# Current color space: YUV420P8, bit depth: 8, resolution: 720x576, frame rate: 23.976fps, scanorder: progressive, yuv luminance scale: limited, matrix: 470bg, transfer: bt.709, primaries: bt.601 ntsc, format: AVC
# Loading S:\Nasties-2398-IN\Trailer 28 MinutesHB.mp4 using LibavSMASHSource
clip = core.lsmas.LibavSMASHSource(source="S:/Nasties-2398-IN/Trailer 28 MinutesHB.mp4")
clip.set_output()
2. open that file in vsViewer and press F5
   
3. open a Terminal Window inside "C:/Program Files/Hybrid/64bit/Vapoursynth" and then call:
   
   Code:

   VSPipe.exe "PATH TO the test.vpy" NUL -c y4m --progress
4. open a Terminal Window inside "C:/Program Files/Hybrid/64bit/Vapoursynth" and then call:
   
   Code:

   VSPipe.exe "PATH TO the test.vpy" --info
5. Does it make a difference if you open the TaskManager and check that under processes no other 'Apps' are running when using Hybrid?
   

Cu Selur

Opening VsViewer at first says:



It then briefly opens (grey) and the quickly closes.

Quote:open a Terminal Window inside "C:/Program Files/Hybrid/64bit/Vapoursynth"

your Terminal was opened in "c:\Users\Admin"
then first enter
before you do the vspipe calls.
Also you need to replace
with the actual path to the test.vpy, in example:

Cu Selur

How do I find the path to test.vpy?

You need to create the test.vpy yourself ("create a test.vpy file with the following content"), and thus need to know the path, I simply assumed you would place the file in your Desktop-folder.

Cu Selur

Do I need to save it to the desktop?

No, you can save the file wherever you want, you just need to adjust the call to vspipe accordingly.

Sorry, I'm not having much luck.