Виртуальная веб камера mac os

How to use a virtual camera for Zoom, Microsoft Teams and Google Meet in OBS for Mac

Apr 23, 2020 · 4 min read

Introduction

OBS for Mac OS can now also use a virtual camera.
Now you can output to Zoom, etc., even if you are doing the delivery on a Mac.
Isn’t this the feature everyone has been waiting for!

In the past, I wrote an article like the one below and was often asked if it could be done on a Mac.

How to output OBS as a virtual camera and recognize it as a video source with Zoom or Teams

I found it!
Just the other day, it was mentioned in the OBS forum.

Question / Help — Virtual web cam solution for Mac

I think starting with Zoom v4.6.10, Zoom does not load load virtual camera devices any more. It’s not mentioned in…

The following plugins are available.

johnboiles/obs-mac-virtualcam

Creates a virtual webcam device from the output of OBS. Especially useful for streaming smooth, composited video into…

I’d like to explain how it works after installing it.

How to Install

Package ver s ions for macOS are available at obs-mac-virtualcam-0e62cec-v1.1.0.pkg. The method of use remains the same.(21/05/2020)

johnboiles/obs-mac-virtualcam

Create your free GitHub account today to subscribe to this repository for new releases and build software alongside 50…

OBS will be started.
Start Virtual Camera will be added to Tools. We’re ready to go.

Start with Start Virtual Camera in advance.

Virtual Camera must be started before you can launch the application you want to use.
Otherwise, the virtual camera may not recognize you as a camera device.

To exit, press Stop Virtual Camera at the same point.

Here’s one important thing to note. The OBS that the plugin is loaded into is copied to the user’s HOME, so it needs to be launched from the terminal each time. You can’t launch it directly from the Finder either. I can’t do it with aliases either. Maybe it will work if you do a lot of talking.

Zoom for Mac version 5.1.1 or higher now supports virtual cameras. Please keep it updated with the latest version. (07/07/2020)

The OBS Virtual Camera can be selected in the camera selection section.

You can confirm that the OBS screen will be displayed when you select it.

Microsoft Teams

For Microsoft Teams, it works with the latest version.

Change the camera to OBS Virtual Camera on the device’s Customize screen.

I can confirm that it is displayed without any problems.

Google Meet

You can see it on Google Meet without any problem (I think it will).
The one I tried was the free one.
I think it’s essentially the same.
Also, since it works in Chrome, I think it works in Chrome, but other applications almost work too.

Open the configuration screen and change from Video to OBS Virtual Camera.

The OBS screen will be output without any problems.

conclusion

Until now, the OBS virtual camera was only available for Windows. That’s why people with macOS didn’t have much fun customizing their screens and having meetings.
With the introduction of the virtual camera for macOS, the range of use of OBS has expanded and the fun has increased.
I think it will work well in delivering study groups, etc.
I’d be happy if the product is packaged and made more accessible.

Источник

virtual camera on macOS?

is CoreMedia plugin the answer? i’ve seen the question here related codesigning: https://developer.apple.com/forums/thread/131826 with no conclusion.

is DEXT driver extension the answer? note there is no custom hardware here, the camera is virtual and doesn’t need hardware; is DEXT allowed at all if there’s no hardware device?

is KEXT kernel extension the answer? i know it is being phased out but if that’s the only way now — so be it.

is QT / Sequence Grabber the answer or is that completely dead now?

is method swizzling / or other kind of «patching» the answer?

any working solution even deprecated or dodgy will do, but of course a modern and apple sanctioned one is preferable.

Accepted Answer

So far the best method appears to be the CoreMediaIO DAL plugin. Unfortunately, as you mentioned, Apple products don’t like plugins. Fortunately, Zoom and Microsoft (they are currently working on a Teams fix for virtual cameras for macOS), feel that plugins are still valuable in this day and age; especially when you have many people working from home remotely and who have various video sourcing needs.

The only way I have been able to feed my own video data into Apple software with SIP enabled was to configure a Raspberry Pi to look like a UVC device when plugging it into the Mac. Once you appear as a UVC device and use the macOS built-in UVC driver, you basically have the keys to the kingdom and no entitlements, notarization, or security policies block you from feeding your video data into any apps (Apple apps included). Obviously not a purely software solution however, but it indeed works. Unsure if it’s possible to develop a purely software solution appear as a UVC device utilizing macOS’s UVC driver. It’s interesting that on the Windows platform, it is actually quite trivial to develop many types of virtual drivers that appear as physical devices to the host system. Apple seems adamantly against such an absurd concept 🙂

Answers

So far the best method appears to be the CoreMediaIO DAL plugin. Unfortunately, as you mentioned, Apple products don’t like plugins. Fortunately, Zoom and Microsoft (they are currently working on a Teams fix for virtual cameras for macOS), feel that plugins are still valuable in this day and age; especially when you have many people working from home remotely and who have various video sourcing needs.

The only way I have been able to feed my own video data into Apple software with SIP enabled was to configure a Raspberry Pi to look like a UVC device when plugging it into the Mac. Once you appear as a UVC device and use the macOS built-in UVC driver, you basically have the keys to the kingdom and no entitlements, notarization, or security policies block you from feeding your video data into any apps (Apple apps included). Obviously not a purely software solution however, but it indeed works. Unsure if it’s possible to develop a purely software solution appear as a UVC device utilizing macOS’s UVC driver. It’s interesting that on the Windows platform, it is actually quite trivial to develop many types of virtual drivers that appear as physical devices to the host system. Apple seems adamantly against such an absurd concept 🙂

thank you. the UVC route is the last resort.

what is the rationale here for such restrictions? i can understand there can be security concerns when a piece of code has access to the camera feed (so it can snoop and do other bad things), but with the virtual camera the situation is the opposite — it *produces* video data. what are the possible use cases that constitute security threats?

the real world analogy would be to prosecute not just the thieves but their victims.

I’m not entirely sure of the rationale. I believe since the advent of hardened runtime, by default 3rd party plugins are blocked by the using app unless the app explicitly includes the «disable-library-validation» runtime. So you are still free to create a CMIO plugin, notarize and sign it, and it should work with apps with that entitlement. It was interesting to see back in March that Zoom had removed this entitlement which caused an uproar amongst many of their users since their daily work lives (especially with work from home) depended on virtual cameras. This pressured Zoom to include the entitlement to restore support for virtual cameras. Microsoft is repeating this same cycle right now with Teams.

Personally I don’t understand all of the hate for CMIO DAL plugins. Their sole purpose is to provide your video data to other apps.
I don’t see how a virtual driver would provide any further improvements. The driver portion should be for retrieving video data from a physical device, which would then stream up through the CMIO plugin to 3rd party apps. Even if you could make a virtual driver solution with DriverKit, good luck getting Apple’s blessing with the driverkit.transport.usb entitlement (or whatever else is needed) if you aren’t a hardware manufacturer.

I hope Apple is seeing the trend with Zoom and Teams for a return to the CMIO plugin and follow suit.

I don’t understand all of the hate for CMIO DAL plugins.

The problem with CoreMedia DAL plug-ins is that they load within the host app’s process. In-process plug-ins represent an obvious security problem and Apple is moving away from that architecture entirely. You’ll note that all plug-in mechanisms that that we’ve introduced recently are based on app (or system) extensions, which avoids this problem. Additionally, many existing in-process plug-ins are now loaded by a system process that’s dedicated to that task (for example, third-party authorisation plug-ins are now loaded by authorizationhosthelper rather than the traditional authorizationhost ).

The bugs mentioned in that other thread are all focused around the idea of providing this feature without requiring an in-process plug-in.

Источник

Виртуальная веб камера mac os

OBS (macOS) Virtual Camera (ARCHIVED) 🎥

ATTENTION: STARTING WITH OBS Studio 26.1, THIS PLUGIN IS NOW A PART OF THE OFFICIAL OBS PACKAGE 🎉 . Development will now happen on the OBS Studio GitHub. Running this plugin along-side the built-in distribution does not work. If you can, update to OBS 26.1!

ATTENTION: Before updating to OBS Studio 26.1, make sure to remove this plugin using the uninstall instructions. While it worked for most, some users have reported problems when updating to OBS Studio 26.1 with the plugin installed. You will likely also need to restart any host software (e.g. Chrome, Zoom, etc) after installing OBS Studio 26.1 and starting the virtual camera before the new plugin will work.

Creates a virtual webcam device from the output of OBS Studio. Especially useful for streaming smooth, composited video into Zoom, Hangouts, Jitsi etc. Like CatxFish/obs-virtual-cam but for macOS.

This code was spun out of this OBS Project RFC which was itself spun out of this issue from @tobi. The goal for this, being merged into the core OBS codebase, has been reached 🤞 .

Consider sending some money in the direction of the OBS Project via Open Collective, Patreon, or PayPal. Obviously, without OBS, this plugin would not be very useful! Hugh «Jim» Bailey is OBS Project’s full-time lead developer and project maintainer. This money helps him continue to work on OBS!

If, after you donate to the OBS Project, you also want to send some cash my way that’s appreciated too! Feel free to Buy Me a Coffee or PayPal me.

• Zoom prior to version 5.1.1 disabled virtual cameras by default. Please update to the latest (5.2.1 at time of writing) to re-enable virtual camera. Start the virtual camera before starting the Zoom application.
• Slack, Webex, Skype and probably some other applications have disabled virtual cameras by default via application restrictions. Check out the wiki to see if your app is supported. Please edit the wiki if you try other software that we should include in that list. In most cases you can work around these restrictions by re-codesigning those applications.
• Photo Booth and FaceTime do not support virtual cameras as of macOS 10.14 Mojave since they disallow loading any plugin that’s not provided by Apple. Photo Booth can simply be duplicated and renamed (e.g. Photo Booth copy ) and it will work. There is no known workaroud for FaceTime.
• You may need to restart your computer after installing new versions of this plugin (not sure why 🤷‍♂️ ).

See also the open issues for other reported issues. In case you need help or think you found a bug, see this.

If you are using OBS Studio 26.1 or newer, the virtual camera is already part of OBS Studio. In that case, DO NOT install this plugin!

• Download and install the latest version of OBS from the official website.
• Download the latest .pkg installer on the Releases page
• Run the .pkg installer (entering your password when required)
• If you’re already running OBS, make sure to restart it.
• Restart any app that was running during the installation process that is supposed to pick up the camera.
• To start the virtual camera, go (in OBS) to Tools → Start Virtual Camera .

Your OBS video should now show up in the target app!

You can easily uninstall this plugin by deleting the OBS plugin (in /Library/Application\ Support/obs-studio/plugins/ ) and the DAL plugin (in /Library/CoreMediaIO/Plug-Ins/DAL/ ).

If you are using the version the virtual camera that comes shipped with OBS Studio 26.1, the official place for questions is the #macos-support channel in the OBS Studio Discord. If you are still using this plugin, the official place for discussion and chat is in the #plugins-and-tools channel in the OBS Studio Discord. For questions or troubleshooting, ping @gxalpha#3486 and attach the OBS log, screenshots, and/or crash logs (from Console.app).

Reporting Issues / Bugs / Improvements

🚀 Wonder How to contribute? Have look at our notes for contributors. There are ways non-technical or minimally-technical folks can contribute too!

This plugin is now archived. If you are having an issue there’s a good chance someone has already run into the same thing. Please search through the issues before reporting a new one. If you are using the version the virtual camera that comes shipped with OBS Studio 26.1, also see the issues on the OBS Studio GitHub and create new issues there.

If you still believe you have found an unreported issue related to this plugin, please open an issue! When you do, include any relevant terminal log, Console.app log, crash log, screen recording and/or screenshots. The more information you can provide, the better!

Please help me make this thing not janky! See the this wiki page for build instructions and tips & tricks for developing.

As the goal of this repo was to get merged into obsproject/obs-studio, the license for this code mirrors the GPLv2 license for that project.

About

ARCHIVED! This plugin is officially a part of OBS as of version 26.1. See note below for info on upgrading. 🎉 🎉 🎉 Creates a virtual webcam device from the output of OBS. Especially useful for streaming smooth, composited video into Zoom, Hangouts, Jitsi etc. Like CatxFish/obs-virtualcam but for macOS.

Источник