AV1 codec to open video using Avisynth and Virtualdub

Hi.

I'm trying to open video AV1 encoded with Virtualdub. For this, I'd write a Avisynth script.
But I cannot set my system (still Windows 7 -SP1) to set correctly DirectShow to recognize AV1 codec.

I also tried ffms2 and LSMASH library without success.

Any ideas?

Use latest FFmpegSource that includes libdav1d:
http://avisynth.nl/index.php/FFmpegSource

That is all the help I can give.

Thank you, Admin.

I copied this to Avisynth folders.
ffms2.dll
ffms2.lib
ffmsindex.exe

With this,

Code:

v1=FFVideoSource("video.mkv")

or this:

Code:

v1=ffms2_FFVideoSource("video.mkv")

I get this error:

Code:

No video track found

But it creates video.ffindex file.


If I use other version of ffmpeg, I get this error:

Code:

Script error: There is no function named FFVideoSource

or

Code:

Script error: There is no function named ffms2_FFVideoSource

With this:

Code:

v1=DirectShowSource("video.mkv")

I get no error, but this message:

Code:

No video

I copied LSMASHSource.dll to Avisynth folders.

If I load it in the script,

Code:

LoadPlugin("C:\Program Files (x86)\AviSynth\plugins\LSMASHSource.dll"

I get:

Code:

Unable to load plugin error 0xc1

If I don't load, I get this:

Code:

Script error: There is no function named WLibavVideoSource

Error 0xC1 means that you are mixing 32-bit and 64-bit components. Everything must be same bitness.

I can not provide any further help. I don't use Avisynth.

Many thanks, Admin.
Your attention and responses were appreciated.

I could solve the problem.
Installing and using Avisynth info tool, I could see that after a system restore, my Microsoft Visual C++ was a real mess.

Reinstalling Microsoft Visual C++ 2015, 2017 and 2019, all problems had gone.

Thank you.