Webcam.getWebcams() stuck on macOS

[jacktraror]

Hello

I am using the sarxos webcam to get pictures and it workes fine on Windows 10 but on Mac OS (high Sierra) it stucks at Webcam.getWebcams(), and the same happenes with Webcam.getDefault(), so nothing works.

In the logger, the only thing displayed is: 5 [JavaFX Application Thread] INFO com.github.sarxos.webcam.Webcam - WebcamDefaultDriver capture driver will be used.

Is there any way to get around this and make this work on mac?

[neilyoung]

it works perfectly on a Mac.

Update: March 2020. Well, I have to revert my statement. It is not working anymore on Mac :)

[sarxos]

Hi @jacktraror,

You can debug and dig into the code to see what is happening. Enabling debug logs may help you understand what is happening. Community indeed reported problems on some Mac machines, but I'm unable to find a connection since it may not work on your Mac, but works perfectly well on someone's else computer.

[vAlmaraz]

Hi @jacktraror

It happens also for me in a MacBook Pro 2017 with Mac OSX 10.13.3.

I have fixed setting a timeout, for example:

// 1 sec timeout
Webcam webcam = Webcam.getDefault(1000);

The default timeout is 9223372036854775807L.

EDIT:

It seems that Webcam discovery is unable to find the built in webcam, so when the timeout is reached, it throws an exception. So, sorry, it didn't fix it, but at least in my case I can continue executing code...

[rhysm94]

I’m having this exact same problem on macOS 10.13.3, on a MacBook Pro 13” 2015. As @vAlmaraz has said, setting a timeout allows code to continue executing, but this leaves no way to access the iSight webcam on macOS. If anyone has a solution, it would be greatly appreciated!

(P.S. comments like: “It works fine” are not useful to anybody)

[migralito]

I had several cams plugged in and Webcam.getDefault() hangs. If I set a timeout on that calls, it throws timeout exception. I also subscribed to cams discovery listener but got no notifications about any of them. I booted with linux (have dual boot) and application works just fine: plugged in cameras are recognized though built in did not but thats because I didn't installed the driver. Will check later what happens if I install it (bcwc_pcie). My point however is that I'm getting the same issue and logs in debug doesn't help at all. It's a 2017 two thunderbolt ports model with macOs 10.13.4

[rider87]

did you fixed the issue?

[eduramiba]

Hi, please try this driver, it should work with recent MacOS versions https://github.com/eduramiba/webcam-capture-driver-native

[treimers]

I had the same problem when trying to run example WebCamApp on mac OS High Sierra (MacBook Pro mid 2012). I found the following workaorund for the problem on my machine.

I moved the invocation of Webcam.getWebcams() to the main method:

	private static List<Webcam> webcams;
        ...
	public static void main(String[] args) {
		webcams = Webcam.getWebcams();
		launch(args);
	}

and replaced all Webcam.getWebcams() by static field webcams. And voilá, seems to work!