This is easy to reproduce in Sample/WMCConsole_winrtcpp but actually applies to any kernel streaming frameserver client.
Is there a way to turn of make internal debug messages from frameserver?

Thank you.

avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(1) tid(5884) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(2) tid(5884) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(3) tid(5884) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(1734)\MFSENSORGROUP.dll!00007FFC0CF7B606: (caller: 00007FFC0CF4A3C2) ReturnHr(4) tid(5884) C00D36D6 The requested value is not available.avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF449FD) ReturnHr(5) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44A70) ReturnHr(6) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44ABC) ReturnHr(7) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(1308)\MFSENSORGROUP.dll!00007FFC0CF7C6DE: (caller: 00007FFC0CF44B05) ReturnHr(8) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(9) tid(5884) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(10) tid(5884) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(11) tid(5884) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(1734)\MFSENSORGROUP.dll!00007FFC0CF7B606: (caller: 00007FFC0CF4A3C2) ReturnHr(12) tid(5884) C00D36D6 The requested value is not available.avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF449FD) ReturnHr(13) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44A70) ReturnHr(14) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44ABC) ReturnHr(15) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(1308)\MFSENSORGROUP.dll!00007FFC0CF7C6DE: (caller: 00007FFC0CF44B05) ReturnHr(16) tid(5884) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(17) tid(55e0) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(18) tid(55e0) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(19) tid(55e0) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(1734)\MFSENSORGROUP.dll!00007FFC0CF7B606: (caller: 00007FFC0CF4A3C2) ReturnHr(20) tid(55e0) C00D36D6 The requested value is not available.avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF449FD) ReturnHr(21) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44A70) ReturnHr(22) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44ABC) ReturnHr(23) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(1308)\MFSENSORGROUP.dll!00007FFC0CF7C6DE: (caller: 00007FFC0CF44B05) ReturnHr(24) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(25) tid(55e0) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(26) tid(55e0) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(362)\MFSENSORGROUP.dll!00007FFC0CF7C0DE: (caller: 00007FFC0CF3F41C) ReturnHr(27) tid(55e0) 80070490 Element not found.
avcore\mf\frameserver\fsutils\fsutils.cpp(1734)\MFSENSORGROUP.dll!00007FFC0CF7B606: (caller: 00007FFC0CF4A3C2) ReturnHr(28) tid(55e0) C00D36D6 The requested value is not available.avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF449FD) ReturnHr(29) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44A70) ReturnHr(30) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(639)\MFSENSORGROUP.dll!00007FFC0CF7C26A: (caller: 00007FFC0CF44ABC) ReturnHr(31) tid(55e0) 80070002 The system cannot find the file specified.
avcore\mf\frameserver\fsutils\fsutils.cpp(1308)\MFSENSORGROUP.dll!00007FFC0CF7C6DE: (caller: 00007FFC0CF44B05) ReturnHr(32) tid(55e0) 80070002 The system cannot find the file specified.

The Windows Camera version 2022.2206.2.0 has a QR-Code Reading Feature.

https://www.howtogeek.com/818230/windows-11-is-getting-a-built-in-qr-code-scanner/

With devices that already has Win 11 22H2 installed it is possible to use the built-in camera for QR-Code reading.

This is a no-brainer on Android or iPhone devices but constantly P.I.T.A. on Windows devices.

Is it possible to integrate a QR-Code-reading-sample into this project?

I'm trying to register the VirtualCameraMediaSource.dll without using the MSI installer.

Using the MSI, the sample worked very well, but I don't want to use this installer.
I tried to call the regsvr32.exe to register the DLL, but it failed.
Also, based on the README, I tried to add the registry entries manually and it didn't work too.

I created a .reg file exporting the registry entries created by the installer and changed the DLL path to a different path and it also didn't work.

This is my .reg file:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7B89B92E-FE71-42D0-8A41-E137D06EA184}]
@="VirtualCameraMediaSource"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7B89B92E-FE71-42D0-8A41-E137D06EA184}\InProcServer32]
"ThreadingModel"="Both"
@=""C:\\VirtualCamera\\VirtualCameraMediaSource.dll""

After adding these registry entries, the DLL isn't being loaded. I really don't know the difference between adding from the MSI and manually.

Anyone know how to do it without the MSI? Thanks :)

I make a fork on my account，add mft for MPEG to NV12，because none of my notebooks can use this sample。
https://github.com/comor86/Windows-Camera
It works for most apps，but not on WeChat PC version(https://windows.weixin.qq.com/)。
When I using the virtual camera for video chat，I can't switch to the physical camera，and after closing the video chat，the Camera Led still lighting, unless I exit the WeChat app.
I make a small chang on SetStreamState()

        winrt::slim_lock_guard lock(m_Lock);

        RETURN_IF_FAILED(_CheckShutdownRequiresLock());
        DEBUG_MSG("[%d] SetStreamState %d", m_dwStreamId, state);

        wil::com_ptr_nothrow<IMFMediaStream2> spStream2;
        RETURN_IF_FAILED(m_spDevStream->QueryInterface(IID_PPV_ARGS(&spStream2)));
        RETURN_IF_FAILED(spStream2->SetStreamState(state));

        if (state == 0)
        {
            std::thread([&]() {
                std::this_thread::sleep_for(std::chrono::milliseconds(3));
                if (m_parent != NULL)
                {
                    m_parent->Shutdown();
                }
                });
        }

        return S_OK;

And it seems work, but cause other problem.
Wish a better dealing for this, thanks!

Hi ,
I'm trying to get DefaultController to turn on or off mep features (Blur , Eye Contact , Automatic Framing).
I found a strange issue, that When turning on the Automatic Framing , I will get a exception:

Unspecified error

 

D:\github\Windows-Camera\Samples\CameraSettingsExternalSettingsApp\DefaultControlHelper\DefaultControlHelper.cpp(104)\DefaultControlHelper_WinRT.dll!00007FFA753EFA8C: (caller: 00007FFA753E3049) Exception(1) tid(1350) 8007000D The data is invalid.
    [winrt::DefaultControlHelper::implementation::DefaultController::DefaultController(existingControlDefaults->UnlockControlData())]

Can you double confirm that ?

Thanks

How do know what cameras/webcams are windows compliant 360-degree cameras? Is there a list somewhere?
When I tested this on my Dell Alienware R17 laptop it could detect the Integrated Webcam. It also detected the cameras built into the Samsung Odyssey HMD. I also worked with the Logitech C920 external webcam. It did NOT work with my Ricoh Theta V 360 camera. (the only 360 camera I have)

The problem with this camera I found in debugging the program was in the check for:

sourceInfo.SourceKind == MediaFrameSourceKind.Color  // (MainPage.xaml.cs Line#501)

where my Ricoh Theta V was reporting as

MediaFrameSourceKind.Custom

and thus not compliant?

Is this something I can tweak the app to get working with the Ricoh Theta V, or do I need to hope that Ricoh will update the driver?

And is there a list of complaint camera's somewhere?
@Sudhaushu @LPBourret

Hi ,

I find this question on 23H2 (build 22631.2715)
And it seems only happened on Intel platform.

The ETL log shows that the flag set to digitalwindow is 2.

Can you comfirm that is a bug or other situations?

Thank you!

Hi ,
I get a exception when I try to set default value with the default controller of auto-framing.

 private void DefaultAFToggle_Toggled(object sender, RoutedEventArgs e)
        {
            try
            {
                int flags = (int)((DefaultAFToggle.IsOn == true) ? AutoFramingCapabilityKind.KSCAMERA_EXTENDEDPROP_DIGITALWINDOW_AUTOFACEFRAMING: AutoFramingCapabilityKind.KSCAMERA_EXTENDEDPROP_DIGITALWINDOW_MANUAL);
                m_AFController.DefaultValue = flags;
                PropertyInquiry.SetExtendedControlFlags(m_mediaCapture.VideoDeviceController, ExtendedControlKind.KSPROPERTY_CAMERACONTROL_EXTENDED_DIGITALWINDOW, (uint)flags);
            }
            catch (Exception ex)
            {
                UITextOutput.Text = $"error: {ex.Message}";
            }
        }

The exception is throwed from red bounding of the below picture.

I skip this exception and find that the value is set successfully , because the setting is changed when I reopen the setting page.

Other controllers (blur, eye contact) work well with setting default value , and sync quickly with setting page (no need to reopen) .

Is this a problem ?

I am trying to run the VirtualCameraSample on windows 11 I have the windows SDK 10.0.22000.0 installed but yet am getting Class not registered on virtual camera start call
RETURN_IF_FAILED(spVirtualCamera->Start(nullptr));

any hints?

I have an external c++ application, if it needs to write a frame into virtual camera, what function can i use? KsProperty?

CameraSettingsExternalSettingsApp
Hi，This project has great features, but I'm having some problems with it, so any help would be really appreciated!

1、Without DMFT driver, can we use UWP app to register companion app directly?
2、How to judge who the current companion app is(at the code level)?
3、How to remove the companion app completely(at the code level)?

Is there a way to run this on Windows 10.....I've tried all possible setup instructions none of them are working even after deploying the app.
I was able to build and run this app on Windows 11 but on Windows 10 I'm unable to wrap existing webcam devices

The error code is -2147024769 : The specified procedure could not be found. (Exception from HRESULT: 0x8007007F)

This 'Microsoft Visual Studio Installer Project' extension is not mentioned in the readme.md for the project.

run on hololens2?

Hello - I've been banging my head against the wall these past couple of weeks because I have no idea what I'm doing wrong. For some reason I get an RPC failed error with the code 0x800706BE when I try to start my Virtual Camera. My Virtual Camera is exactly the same as the SimpleMediaSource example from this repo, execpt it's in Rust.
There are two strange things to note:
1. It used to work on pre-Windows 11 22H2 and stopped working after the update
2. The c++ example works just fine.

Below are the logs callstack and some execptions that occur (from debugging with Windbg):

Callstack:
00 0000005951afe288 00007ffbc7b61bca RPCRT4!NdrSendReceive+0x5
01 0000005951afe290 00007ffbc7b6104b RPCRT4!NdrpClientCall3+0x6aa
02 0000005951afe5b0 00007ffb5c74a82c RPCRT4!NdrClientCall3+0xeb
03 0000005951afe940 00007ffb5c70365d FrameServerClient!FsClientImpl::AddDeviceToClient+0x5ec
04 0000005951afebb0 00007ffb5c702bc1 FrameServerClient!FsProxy::CreateStreamsForDevice+0x16d
05 0000005951afee70 00007ffb5c703ecc FrameServerClient!FsProxy::CreateStreamsForAllDevices+0x2e1
06 0000005951aff140 00007ffb5c701bd7 FrameServerClient!FsProxy::Initialize+0x6ac
07 0000005951aff210 00007ffb5c7411db FrameServerClient!FsProxy::CreateInstance+0x83
08 0000005951aff250 00007ffb5c7410ce FrameServerClient!FSClientFactory::CreateInstanceByService+0xab
09 0000005951aff2b0 00007ffbbae2f094 FrameServerClient!FSClientFactory::CreateInstance+0x8e
0a 0000005951aff2f0 00007ffb5c7b4ecf MFCORE!MFCreateDeviceSource+0x574
0b 0000005951aff410 00007ffb5c7b88e5 FrameServerMonitorClient!FSMSessionVirtualCamera::InternalEnableCamera+0x71f
0c 0000005951aff590 00007ff6c1f34540 FrameServerMonitorClient!FSMSessionVirtualCamera::Start+0x45
0d 0000005951aff5c0 00007ff6c1f32928 vcam!windows::Windows::Win32::Media::MediaFoundation::IMFVirtualCamera::Start<enum$<core::option::Option<ref$windows::Windows::Win32::Media::MediaFoundation::IMFAsyncCallback >, 1, 18446744073709551615, Some> >+0xb0 [C:\Users\Brian.cargo\registry\src\github.com-1ecc6299db9ec823\windows-0.39.0\src\Windows\Win32\Media\MediaFoundation\mod.rs @ 46663]
0e 0000005951aff680 00007ff6c1f320ab vcam!vcam::main+0x3d8 [C:\Users\Brian\Documents\source\vcam\vcam\src\main.rs @ 45]
0f 0000005951affaa0 00007ff6c1f352bb vcam!core::ops::function::FnOnce::call_once<void ()(),tuple$<> >+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\library\core\src\ops\function.rs @ 227]
10 0000005951affae0 00007ff6c1f34fd1 vcam!std::sys_common::backtrace::__rust_begin_short_backtrace<void ()(),tuple$<> >+0x1b [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\library\std\src\sys_common\backtrace.rs @ 125]
11 0000005951affb20 00007ff6c1f4150e vcam!std::rt::lang_start::closure$0<tuple$<> >+0x11 [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\library\std\src\rt.rs @ 145]
12 (Inline Function) ---------------- vcam!core::ops::function::impls::impl$2::call_once+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\library\core\src\ops\function.rs @ 259] 13 (Inline Function) ---------------- vcam!std::panicking::try::do_call+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library\std\src\panicking.rs @ 492]
14 (Inline Function) ---------------- vcam!std::panicking::try+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\/library\std\src\panicking.rs @ 456] 15 (Inline Function) ---------------- vcam!std::panic::catch_unwind+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library\std\src\panic.rs @ 137]
16 (Inline Function) ---------------- vcam!std::rt::lang_start_internal::closure$2+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\/library\std\src\rt.rs @ 128] 17 (Inline Function) ---------------- vcam!std::panicking::try::do_call+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library\std\src\panicking.rs @ 492]
18 (Inline Function) ---------------- vcam!std::panicking::try+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\/library\std\src\panicking.rs @ 456] 19 (Inline Function) ---------------- vcam!std::panic::catch_unwind+0xb [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library\std\src\panic.rs @ 137]
1a 0000005951affb60 00007ff6c1f34f9f vcam!std::rt::lang_start_internal+0x13e [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e/library\std\src\rt.rs @ 128]
1b 0000005951affc50 00007ff6c1f32bd6 vcam!std::rt::lang_start<tuple$<> >+0x2f [/rustc/fe5b13d681f25ee6474be29d748c65adcd91f69e\library\std\src\rt.rs @ 144]
1c 0000005951affcb0 00007ff6c1f5abbc vcam!main+0x16
1d (Inline Function) ---------------- vcam!invoke_main+0x22 [d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 78] 1e 0000005951affce0 00007ffbc660244d vcam!__scrt_common_main_seh+0x10c [d:\a01\_work\20\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 288] 1f 0000005951affd20 00007ffbc848df78 KERNEL32!BaseThreadInitThunk+0x1d 20 0000005951affd50 00000000`00000000 ntdll!RtlUserThreadStart+0x28

RPC exceptions:
(39ac.2488): Unknown exception - code 000006be (first chance)
(39ac.2488): Unknown exception - code 000006bf (first chance)
(39ac.2488): Unknown exception - code 000006bf (first chance)

Logs:
successfully created camera!
Called: <vcam_media_source::vcam_media_source_activate_factory::VCamMediaSourceActivateFactory as windows::Windows::Win32::System::Com::IClassFactory_Impl>::CreateInstance
Called: vcam_media_source::vcam_media_source_activate::VCamMediaSourceActivate::new
Called: <vcam_media_source::vcam_media_source_activate::VCamMediaSourceActivate as windows::Windows::Win32::Media::MediaFoundation::IMFAttributes_Impl>::GetItemType
Called: <vcam_media_source::vcam_media_source_activate::VCamMediaSourceActivate as windows::Windows::Win32::Media::MediaFoundation::IMFAttributes_Impl>::SetItem
Called: <vcam_media_source::vcam_media_source_activate::VCamMediaSourceActivate as windows::Windows::Win32::Media::MediaFoundation::IMFAttributes_Impl>::GetUINT32
Called: <vcam_media_source::vcam_media_source_activate::VCamMediaSourceActivate as windows::Windows::Win32::Media::MediaFoundation::IMFActivate_Impl>::ActivateObject
Called: vcam_media_source::vcam_media_source::VCamMediaSource::new
Called: vcam_media_source::vcam_media_source::VCamMediaSource::create_attributes
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::new
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::set_stream_attributes
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::set_stream_attributes
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::init_mft
Called: <vcam_media_source::vcam_media_stream::VCamMediaStream as windows::Windows::Win32::Media::MediaFoundation::IMFMediaStream_Impl>::GetStreamDescriptor
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::check_shutdown
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFMediaSourceEx_Impl>::GetSourceAttributes
Called: vcam_media_source::vcam_media_source::VCamMediaSource::check_shutdown
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFGetService_Impl>::GetService
Called: vcam_media_source::vcam_media_source::VCamMediaSource::check_shutdown
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFMediaSource_Impl>::CreatePresentationDescriptor
Called: vcam_media_source::vcam_media_source::VCamMediaSource::check_shutdown
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFMediaSourceEx_Impl>::GetStreamAttributes
Called: vcam_media_source::vcam_media_source::VCamMediaSource::check_shutdown
Called: vcam_media_source::vcam_media_source::VCamMediaSource::get_media_stream_by_id
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::get_id
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::get_attributes
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFMediaSourceEx_Impl>::GetSourceAttributes
Called: vcam_media_source::vcam_media_source::VCamMediaSource::check_shutdown
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFMediaSourceEx_Impl>::GetSourceAttributes
Called: vcam_media_source::vcam_media_source::VCamMediaSource::check_shutdown
Called: <vcam_media_source::vcam_media_source::VCamMediaSource as windows::Windows::Win32::Media::MediaFoundation::IMFMediaSource_Impl>::Shutdown
Called: vcam_media_source::vcam_media_stream::VCamMediaStream::shutdown
thread 'main' panicked at 'failed to start camera: Error { code: 0x800706BE, message: The remote procedure call failed. }', vcam\src\main.rs:45:36

Results in 404 Page Not Found

Hi developers,

I have noticed that the images generated by a virtual camera are opposite to those of a physical camera. I would like to inquire whether there are specific properties that need to be set to ensure that the images generated by the virtual camera match the orientation of a physical camera. Alternatively, is there a particular API that needs to be used to achieve this?

Thank you very much for your time and assistance!

There are important files that Microsoft projects should all have that are not present in this repository. A pull request has been opened to add the missing file(s). When the pr is merged this issue will be closed automatically.

Microsoft teams can learn more about this effort and share feedback within the open source guidance available internally.

Merge this pull request

Hi,

Hi think there's a COM reference leak here
https://github.com/microsoft/Windows-Camera/blob/master/Samples/VirtualCamera/VirtualCameraMediaSource/SimpleMediaSource.cpp#L37

auto ptr = winrt::make_self<SimpleMediaStream>(); // +1
m_streamList[i] = ptr.detach(); // +2

It's caused by the mix between WIL and C++/WinRT

This could be fixed by something like this for example:

m_streamList[i].attach(ptr.detach());

In readme Getting Started's 5th step says Install VirtualCamera_UWP, this one I am not sure what I should do. I have seen in other issues people were able to install uwp camera manager app, but I am not sure how do I do this. Any comment about this would be appreciated. What I was able to do was the following:

1. Built all the projects successfully
2. Installed VirtualCamera_MSI
3. Ran VirtualCamera_Installer and was able to install VCam-SimpleMediaSource and VCam-HWMediaSource. When choosing VCam-AugmentedMediaSource, the installer crashes.

VCam-SimpleMediaSource and VCam-HWMediaSource I registered were visible in ms teams (for example). However, it was not possible for me to use the same virtual camera from another app (e.g. slack) simultaneously while ms teams was using the virtual cam. Maybe I am missing smth or doing smth wrong. If not, is there a way to modify/extend this project so the virtual camera is consumed from multiple applications simultaneously? Or any way to use MediaSource to build a virtual camera that will be consumed by multiple applications simultaneously.

Hi there,

I am experimenting with the Virtual Camera example in the repository. After building the example and registering the activator object for the media source in the registry, I am getting 0x80070005 (which translates apparently to E_ACCESSDENIED) when starting the virtual camera through the installer executable.

Register virtual camera...
 device string: {7B89B92E-FE71-42D0-8A41-E137D06EA184}
 friendly name: SWVCamMediaSource
 Lifetime: 1
 Access: 0
 Succeeded (000002699010CC70)!
 (null)(0):(null), hr=0x80073D57, msg=
 not running in app package
 Start camera
 C:\Users\Marcus\Git\Windows-Camera\Samples\VirtualCamera\VirtualCameraTest\VCamUtils.cpp(196):VCamUtils::RegisterVirtualCamera, hr=0x80070005, msg=
 C:\Users\Marcus\Git\Windows-Camera\Samples\VirtualCamera\VirtualCameraTest\SimpleMediaSourceUT.cpp(194):VirtualCameraTest::impl::SimpleMediaSourceUT::CreateVirtualCamera, hr=0x80070005, msg=
 C:\Users\Marcus\Git\Windows-Camera\Samples\VirtualCamera\VirtualCamera_Installer\main.cpp(227):SelectRegisterVirtualCamera, hr=0x80070005, msg=
 C:\Users\Marcus\Git\Windows-Camera\Samples\VirtualCamera\VirtualCamera_Installer\main.cpp(286):VCamApp, hr=0x80070005, msg=Register Virtual Camera failed
 C:\Users\Marcus\Git\Windows-Camera\Samples\VirtualCamera\VirtualCamera_Installer\main.cpp(390):wmain, hr=0x80070005, msg=

I have been trying to find the issue by instrumenting the code, but I think that the root cause is somewhere in the frame server client and my knowledge of COM and Windows programming as well as Media Foundation is quite limited.

From the mftrace below and my instrumentation, I can see that the media source gets created and initializes just fine. Then it is apparently queried by the framework for its attributes and some attributes appear to be missing. However, I am unable to find their documentation. I've tried looking at the media foundation doumentation and I have grep-ed through the windows kit headers, but they seem to be internal.

I would greatly appreciate any hint on what I might be doing wrong. After spending several nights on this, I am running out of ideas. Thank you.

Regards,

Marcus

           __M_F_T_R_A_C_E___LOG__

PID, TID    Time (UTC)    TraceMessage
--------- --------------  ------------
35004,6240 17:59:38.79881 TraceOSVersion @ OS version (BuildLabEx): 22621.1.amd64fre.ni_release.220506-1250
35004,6240 17:59:38.79881 TraceMFDetoursVersion @ MFDetours version 1.1.0.1
35004,6240 17:59:38.79883 TraceEnabledKeywords @ Keywords and levels: Default 4, Detours 4, MFDebugHlp 4, Kernel32Export 4, MFExport 4, MFPlatExport 4, MFPlayExport 4, MFReadWriteExport 4, Ole32Export 4, wmvCoreExport 4, MFPublic 4, IMFActivate 4, IMFAsyncCallback 4, IMFAttributes 4, IMFClock 4, IMFClockStateSink 4, IMFMediaEventGenerator 4, IMFMediaSession 4, IMFMediaSink 4, IMFMediaSource 4, IMFMediaStream 4, IMFPMediaPlayer 4, IMFPMediaItem 4
35004,6240 17:59:38.79887 TraceEnabledKeywords @ Keywords and levels: IMFPMediaPlayerCallback 4, IMFPresentationClock 4, IMFQualityAdvise 4, IMFQualityAdvise2 4, IMFQualityManager 4, IMFRateControl 4, IMFSample 4, IMFSinkWriter 4, IMFSourceReader 4, IMFSourceReaderCallback 4, IMFSourceResolver 4, IMFStreamSink 4, IMFTopology 4, IMFTopologyNode 4, IMFTopoLoader 4, IMFTransform 4, IMediaObject 4, IMFSchemeHandler 4, IMFByteStream 4, IMFByteStreamHandler 4
35004,6240 17:59:38.79888 TraceEnabledKeywords @ Keywords and levels: IMFReadWriteClassFactory 4, IFilterGraph 4, IGraphBuilder 4, IMediaControl 4, IMemInputPin 4, IWMReader 4, IWMReaderCallback 4
35004,6240 17:59:38.80017 CMFMediaSessionDetours::Attach @00000269900EEA00 Presentation clock @00000269900F4E90
35004,6240 17:59:38.80019 CMFMediaSessionDetours::Attach @00000269900EEA00 Rate control @00000269900EEA10
35004,6240 17:59:38.80648 CMFPlatExportDetours::MFStartup @ Version=0x00020070, dwFlags=0x00000000
35004,6240 17:59:53.09648 COle32ExportDetours::CoCreateInstance @ Created {3F698CF8-1288-459A-AECE-D32BCE8DBACC} FrameServerMonitorClientFactory (C:\Windows\System32\FrameServerMonitorClient.dll) @00000269901028D0 - traced interfaces: 
35004,6240 17:59:53.11018 COle32ExportDetours::CoCreateInstance @ Created {7B89B92E-FE71-42D0-8A41-E137D06EA184} Virtual Camera Source (C:\Users\Marcus\Git\Windows-Camera\Samples\VirtualCamera\x64\Debug\VirtualCameraMediaSource.dll) @00000269900F9E00 - traced interfaces: 
35004,6240 17:59:53.13117 CMFAttributesDetours::GetItemType @000002699010ACD0 attribute not found guidKey = MF_DEVSOURCE_ATTRIBUTE_FRIENDLY_NAME
35004,6240 17:59:53.13182 CMFAttributesDetours::GetUINT32 @000002699010ACD0 attribute not found guidKey = {C7F7C57B-DF30-41D0-AFFC-15201CDF920D}
35004,6240 17:59:53.13185 CMFAttributesDetours::GetUnknown @000002699010ACD0 attribute not found guidKey = {1BB79E7C-5D83-438C-94D8-E5F0DF6D3279}
35004,6240 17:59:53.13186 CMFAttributesDetours::GetAllocatedString @000002699010ACD0 attribute not found guidKey = {3C31A5F8-2795-4FB9-A0A1-C733A65C0CE8}
35004,6240 17:59:53.13283 CMFAttributesDetours::GetAllocatedString @000002699010AA30 attribute not found guidKey = {658ABE51-8044-462E-97EA-E676FD72055F}
35004,6240 17:59:53.13299 CMFAttributesDetours::GetUINT32 @000002699010A610 attribute not found guidKey = {F402567B-4D91-4179-96D1-74C8480C2034}
35004,6240 17:59:53.13299 CMFAttributesDetours::GetUINT32 @000002699010A610 attribute not found guidKey = {E816FAC2-4AD6-413F-BE84-FB004C504035}
35004,6240 17:59:53.13300 CMFAttributesDetours::GetUINT32 @000002699010A610 attribute not found guidKey = {262F1D2F-EEF4-48C5-B0ED-BB9AE15B063D}
35004,6240 17:59:53.13301 CMFAttributesDetours::GetBlobSize @000002699010A610 attribute not found guidKey = {E7BE497B-C849-469B-B68F-D5C2113144EC}
35004,6240 17:59:53.13303 CMFAttributesDetours::GetUINT32 @000002699010A610 attribute not found guidKey = {F402567B-4D91-4179-96D1-74C8480C2034}
35004,6240 17:59:53.13303 CMFAttributesDetours::GetUINT32 @000002699010A610 attribute not found guidKey = {E816FAC2-4AD6-413F-BE84-FB004C504035}
35004,6240 17:59:53.16054 CMFAttributesDetours::GetGUID @000002699010A550 attribute not found guidKey = {2ACF1917-3743-41DF-A564-E727A80EA33D}
35004,6240 17:59:53.16177 COle32ExportDetours::CoCreateInstance @ Created {366F6FDF-839D-4ED5-BFC6-7301A42A2F20} FSClientFactory (C:\Windows\System32\FrameServerClient.dll) @0000026990102BD0 - traced interfaces: 
35004,6240 17:59:53.16181 CMFPlatExportDetours::MFStartup @ Version=0x00020070, dwFlags=0x00000000
35004,6240 17:59:53.16406 CMFAttributesDetours::GetUnknown @000002699010A550 attribute not found guidKey = {76E25E7B-D595-4283-962C-C594AFD78DDF}
35004,6240 17:59:53.16407 CMFAttributesDetours::GetUnknown @000002699010A550 attribute not found guidKey = {7E3D0B9D-C643-483B-9607-1B5969814C7F}
35004,6240 17:59:53.18491 CMFAttributesDetours::GetUINT32 @000002699010ABB0 attribute not found guidKey = {646B2774-D245-4BDB-90E9-2CED310E37B2}
35004,6240 17:59:53.18524 CMFAttributesDetours::GetUnknown @000002699010A550 attribute not found guidKey = {F938EF75-7234-49FE-838C-D0148FF4C5FE}
35004,6240 17:59:53.18749 CMFPlatExportDetours::MFShutdown @ Shutting down Media Foundation
           __M_F_T_R_A_C_E___LOG__

Hi ,

I try to change default value of brightness , but get a exception:

CameraSettingsExternalSettingsApp\DefaultControlHelper\DefaultControlHelper.cpp(128)\DefaultControlHelper_WinRT.dll!00007FFB0DD10FAC: (caller: 00007FFB0DD19FF4) Exception(1) tid(2f9c) 80070005 Access is denied.
    [winrt::DefaultControlHelper::implementation::DefaultController::DefaultValue(strongManager->Save())]



  Source=<Cannot evaluate the exception source>
  StackTrace:
<Cannot evaluate the exception stack trace>

Before I get the exception , I modified the program flow of "ExternalCameraSettingsAppSample" for standalone launching instead of launching from the settings page.

Does "ExternalCameraSettingsAppSample" lost permissions when it doesn't launch from the setting page ?

Thanks.

The exe generated after build does not run in windows 8.1. It gives the following error at runtime:
Error: 80040154:Class not registered

When I use VirtualCameraSimple project, I compile according to README.md, but I am prompted that I can't open the included file:“mfvirtualcamera.h”: No such file or directory. How do I get the mfvirtualcamera. h file?

The link of install visual studio MSI project extension in Windows-Camera-master/Samples/VirtualCamera/README.md document is invalid.

Looking forward to your reply.

The simpleMediaSource and HWMediaSource work well on my computer. But with AugmentedMediaSource, I have tried many times, like using UWP, using Installer, changing some codes, and virtual camera can be created，but no image shown in preview or CameraApp. When I select the AugmentedMediaSource option, the Installer will crash and UWP reports an unspecified error. the CameraApp also reports an error.