SetMedia fails in PowerShell

[tmontney]

As discussed on Gitter, the following code does not work in PowerShell. Tested in x86 and x64 PowerShell. PowerShell version is 5.1.15063.502, running Windows 10 x64 1703. Error is System.AccessViolationException (Vlc.DotNet.Core.Interops.VlcManager.GetMediaStats(Vlc.DotNet.Core.Interops.VlcMediaInstance) ).

Add-Type -Path ".\Other\VLC\Vlc.DotNet.Core.dll"
Add-Type -Path ".\Other\VLC\Vlc.DotNet.Core.Interops.dll"

$Cameras = New-Object System.Collections.ArrayList
$Test = New-Object System.Uri("rtsp://192.168.0.50/axis-media/media.amp?camera=1")
$Cameras.Add($Test)

$VlcLibDirPath = (Get-Location).Path + ".\Other\VLC\libvlc_x64"
$VlcLibDir = New-Object System.IO.DirectoryInfo($VlcLibDirPath)
$VlcOpt = "--rtsp-user=admin", "--rtsp-pwd=12345"
$Plyr = New-Object Vlc.DotNet.Core.VlcMediaPlayer($VlcLibDir, $VlcOpt)
for ($i=0; $i -lt $Cameras.Count; $i++)
{
    $Plyr.SetMedia($Cameras[$i]) #Fails here with System.AccessViolationException
    $Plyr.Play
    $Plyr.Stop
}

[jeremyVignelles]

A workaround has been posted here : https://stackoverflow.com/q/46779644/2663813 In a nutshell, you need to ignore the result of SetMedia if you don't use it:

[null]$Plyr.SetMedia($Cameras[$i]) 

or

$null = $Plyr.SetMedia($Cameras[$i]) 

It only solves a part of the issue : The library should not make access violation exceptions, even in case of a bad usage.

[jeremyVignelles]

Sent patch to the VideoLan's mailing list : https://mailman.videolan.org/pipermail/vlc-devel/2017-October/115858.html