Maui winui

[mfkl]

Getting lots of these

DEP0900: Failed to unregister application "49861f9e-48d3-45c0-b6a8-f591ad6d2010_1.0.0.1_x64__9zz4h110yvjzm". [0x80073CFA] 

Unsure why. Impossible to uninstall existing appx that match this app ID.

On 3.x, on WinUI, the LibVLC object is built using string parameters retrieved from an initialized VideoView (see the plan WinUI sample code). Will have to re-work the code to handle this in the MAUI sample for WinUI support.

[jonx]

Have you tried to unregister the app manually?
In a powershell: Get-AppxPackage *49861f9e-48d3-45c0-b6a8-f591ad6d2010*
Then Remove-AppxPackage -Package full package name, in my case the full name is: 49861f9e-48d3-45c0-b6a8-f591ad6d2010_1.0.0.1_x64__9zz4h110yvjzm

[mfkl]

Exception thrown at 0x00007FFA3639B699 (KernelBase.dll) in LibVLCSharp.MAUI.Sample.exe: WinRT originate error - 0x800F1000 : 'Cannot apply a Style with TargetType 'LibVLCSharp.Platforms.Windows.VideoViewBase' to an object of type 'Microsoft.UI.Xaml.Controls.Control'.'.
Microsoft.ui.xaml.dll!00007FF99E8243D2: 800F1000 - E_NER_INVALID_OPERATION

getting these also

[mfkl]

Progress. Need to check that 267bf18 doesn't break other UI frameworks.

[mfkl]

Without 267bf18, there are errors like

Exception thrown at 0x00007FFA3639B699 (KernelBase.dll) in LibVLCSharp.MAUI.Sample.exe: WinRT originate error - 0x800F1000 : 'Cannot apply a Style with TargetType 'LibVLCSharp.Platforms.Windows.VideoViewBase' to an object of type 'Microsoft.UI.Xaml.Controls.Control'.'.
Microsoft.ui.xaml.dll!00007FF99E8243D2: 800F1000 - E_NER_INVALID_OPERATION

With it, though, our windows video view initialization logic is broken since OnApplyTemplate never gets called. Reworking this view hierarchy would likely be a breaking change, for Uno, UWP and WinUI.

[mfkl]

There is some exception when shutting down the Media Element sample, very little info with debugger attached..

Unhandled exception at 0x00007FF9580C6202 in LibVLCSharp.MAUI.Sample.MediaElement.exe: 0xC0000005: Access violation executing location 0x00007FF9580C6202

Not very insightful.

Logs:

Exception thrown at 0x00007FFA9B5FB699 (KernelBase.dll) in LibVLCSharp.MAUI.Sample.MediaElement.exe: WinRT originate error - 0x80000013 : 'The given object has already been closed / disposed and may no longer be used.'.
Exception thrown at 0x00007FFA9B5FB699 (KernelBase.dll) in LibVLCSharp.MAUI.Sample.MediaElement.exe: WinRT originate error - 0x80070005 : 'The caller is not allowed to perform this operation on this object.'.
The thread 'DManip Delegate Thread' (7800) has exited with code 0 (0x0).
Exception thrown at 0x00007FFA9B5FB699 in LibVLCSharp.MAUI.Sample.MediaElement.exe: Microsoft C++ exception: MONZA::DdiThreadingContext<MONZA::AdapterTraits_Gen12LP>::msg_end at memory location 0x00000065702BFD10.
The thread '0xc0550001' (23260) has exited with code 0 (0x0).
Exception thrown at 0x00007FFA9B5FB699 in LibVLCSharp.MAUI.Sample.MediaElement.exe: Microsoft C++ exception: MONZA::IgcThreadingContext<MONZA::AdapterTraits_Gen12LP>::msg_end at memory location 0x000000657013FDE0.
The thread '0x16c00001' (19672) has exited with code 0 (0x0).
Exception thrown at 0x00007FFA9B5FB699 (KernelBase.dll) in LibVLCSharp.MAUI.Sample.MediaElement.exe: 0x40080202: WinRT transform error (parameters: 0x000000008000000B, 0x0000000080070490, 0x0000000000000014, 0x000000656CB9D180).
Exception thrown at 0x00007FFA9B5FB699 (KernelBase.dll) in LibVLCSharp.MAUI.Sample.MediaElement.exe: 0x40080202: WinRT transform error (parameters: 0x000000008000000B, 0x0000000080070490, 0x0000000000000014, 0x000000656CB9D180).
The thread 21920 has exited with code 0 (0x0).
Exception thrown at 0x00007FF9580C6202 in LibVLCSharp.MAUI.Sample.MediaElement.exe: 0xC0000005: Access violation executing location 0x00007FF9580C6202.
Unhandled exception at 0x00007FF9580C6202 in LibVLCSharp.MAUI.Sample.MediaElement.exe: 0xC0000005: Access violation executing location 0x00007FF9580C6202.

There are similar logs in the non-MediaElement sample, but the process does exit properly.

[mfkl]

Should be good enough for an initial release.

[mfkl]

Potential breaking change in src/LibVLCSharp/Themes/Generic.xaml but no way around it, due to a MAUI/WinUI bug. Thoughts? @jeremyVignelles

[jeremyVignelles]

I think the breaking change should be quite rare given that we didn't document that style. In any case, the fix should be straightforward.