7.x can not open device://

[LazyCuteLion]

i try this:
device://dshow/?video=camera name
device://gdigrab?desktop
it does not work,but local file path is well.

Issue Categories

• Bug

Version Information

• NuGet Package 7.0.361-beta.1

Error

Direct Command 'Close' not accepted. Open media before closing or changing media.
Direct Command 'Open' accepted. Perparing execution.
Direct Command 'Open' entered
Library.LoadFFmpeg: FFmpeg v7.0.1-full_build-www.gyan.dev
Media URI will be updated. Input Format: gdigrab, Input Argument: desktop
Format 'gdigrab' not found. Will use automatic format detection.
“Unosquare.FFME.Common.MediaContainerException”( ffme.win.dll )
“Unosquare.FFME.Common.MediaContainerException”( ffme.win.dll )
Fatal error initializing MediaContainer instance.
MediaContainerException: Could not open 'desktop'. Error -2: No such file or directory
Stack Trace:
Unosquare.FFME.Container.MediaContainer.StreamInitialize()
“Unosquare.FFME.Common.MediaContainerException”(ffme.win.dll)
Direct Command 'Open' execution error
MediaContainerException: Could not open 'desktop'. Error -2: No such file or directory
Stack Trace:
在 Unosquare.FFME.Container.MediaContainer.StreamInitialize()
在 Unosquare.FFME.Container.MediaContainer.Initialize()
在 Unosquare.FFME.Commands.CommandManager.CommandOpenMedia(IMediaInputStream inputStream, Uri streamUri)
在 Unosquare.FFME.Commands.CommandManager.<>c__DisplayClass47_0.b__0()
EVENT START: MediaFailed
EVENT START: MediaClosed
Direct Command 'Open' completed. Result: False
EVENT DONE : MediaFailed
EVENT DONE : MediaClosed

[Axel82]

I have the same problem with “Unosquare.FFME.Windows.Sample”.
The open video is available, but if I want to get the webcam images, the following error appears: Error -2 : No such file or directory.

I've tried :
avdevice://dshow/?video=0
and got the following error: 'Could not open 'avdevice://dshow/?video=0'. Error -1330794744 : Protocol not found'

Any ideas?

[LazyCuteLion]

@Axel82 i think ,it is "device://" ,not "avdevice://" .

[Axel82]

I tried both, and nothing works fine

[LazyCuteLion]

yes,7.x has this issues.
No way has been found yet