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Support older versions of macOS (< 10.15) #85

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colindean opened this issue May 12, 2020 · 53 comments
Closed

Support older versions of macOS (< 10.15) #85

colindean opened this issue May 12, 2020 · 53 comments
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enhancement New feature or request help wanted Extra attention is needed

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@colindean
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Freshly installed OBS from official (25.0.8?), freshly installed obs-mac-virtualcam from releases page on this repo.

Ran rm -rf ~/Library/Application\ Support/obs-studio for good measure, still crashes.

Logs from macOS crash window: https://gist.github.com/colindean/de0c14c151bd05b7b1ac0312f9606f63

I'm on mac OS 10.14. Going to 10.15 isn't an option for me at this time.
@gxalpha
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gxalpha commented May 12, 2020

The error message says

Dyld Error Message:
  Symbol not found: _objc_alloc_init
  Referenced from: /Library/Application Support/obs-studio/*/obs-mac-virtualcam.so (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libobjc.A.dylib

so the OS version may indeed be the problem. We had some people try older versions of macOS, but as far as I know no-one actually did it. It'd be nice if users of older macOS versions could report.

@johnboiles
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Let's repurpose this issue to be about support for older macOS versions. I don't currently support anything before 10.15 (Catalina). But if someone wanted to put in the work to add support for older versions that'd be great (as long as it doesn't add too much complexity to the codebase)

@johnboiles johnboiles changed the title OBS crashes on startup Support older versions of macOS (< 10.15) May 12, 2020
@johnboiles johnboiles added enhancement New feature or request help wanted Extra attention is needed labels May 12, 2020
@johnboiles johnboiles mentioned this issue May 12, 2020
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@jasongrout
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I'm on 10.14, also have the latest OBS 25.0.8, and installed the 1.0 release package of obs-mac-virtualcam. I don't have a crash, and I see the menu item for starting the virtual camera, but I don't see the camera in photobooth, chrome, or firefox after starting the virtual camera and restarting photobooth, chrome, etc. I'm happy to try to find error logs if they would be helpful, but don't know enough about OBS to know where to look.

@johnboiles johnboiles mentioned this issue May 12, 2020
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@johnboiles
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Maybe try opening Console.app, then opening OBS, and then start a movie recording in QuickTime. Then see if you see anything in console about obs-mac-virtualcam

@ocirema
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ocirema commented May 12, 2020 •
edited

Hi.

Maybe try opening Console.app, then opening OBS, and then start a movie recording in QuickTime. Then see if you see anything in console about obs-mac-virtualcam

I did it (also on Mojave 10.14.6):

Logs from Console.app:

default 23:55:51.459641 +0100 QuickTime Player Error loading /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam, 0x0106): symbol '_objc_opt_class' not found, expected in '/usr/lib/libobjc.A.dylib', needed by '/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam'

default 23:55:51.459743 +0100 QuickTime Player Cannot find function pointer PlugInMain for factory <CFUUID 0x60000292ef00> 35FDFF29-BFCF-4644-AB77-B759DE932ABE in CFBundle/CFPlugIn 0x7fbd257243b0 </Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin> (bundle, not loaded)

@jasongrout
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jasongrout commented May 12, 2020 •
edited

Here's the portion of my logs that seem relevant (again, on macOS Mojave 10.14.6). I started the virtual camera from the menu item, then launched quicktime and did not see it, then I stopped the virtual camera (which apparently generated a bit of logging as well)

Partial OBS Logs 
warning: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
error: os_dlopen(libpython3.7m.dylib->libpython3.7m.dylib): dlopen(libpython3.7m.dylib, 257): image not found

warning: [Python] Could not load library: libpython3.7m.dylib
2020-05-12 15:55:55.675 obs[17981:138190] Error loading /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam:  dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam, 262): Symbol not found: _objc_opt_class
  Referenced from: /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libobjc.A.dylib
 in /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam
2020-05-12 15:55:55.675 obs[17981:138190] Cannot find function pointer PlugInMain for factory 35FDFF29-BFCF-4644-AB77-B759DE932ABE in CFBundle/CFPlugIn 0x7fc1257aad60 </Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin> (bundle, not loaded)
warning: A DeckLink iterator could not be created.  The DeckLink drivers may not be installed
info: No blackmagic support
info: [VideoToolbox encoder]: Adding VideoToolbox H264 encoders
info: [obs-browser]: Version 2.8.6
info: VLC found, VLC video source enabled
warning: Failed to load 'en-US' text for module: 'obs-mac-virtualcam.so'
info: ---------------------------------
info:   Loaded Modules:
info:     obs-mac-virtualcam.so
info:     vlc-video.so
info:     text-freetype2.so
info:     rtmp-services.so
info:     obs-x264.so
info:     obs-vst.so
info:     obs-transitions.so
info:     obs-outputs.so
info:     obs-libfdk.so
info:     obs-filters.so
info:     obs-ffmpeg.so
info:     obs-browser.so
info:     mac-vth264.so
info:     mac-syphon.so
info:     mac-decklink.so
info:     mac-capture.so
info:     mac-avcapture.so
info:     linux-jack.so
info:     image-source.so
info:     frontend-tools.so
info:     decklink-ouput-ui.so
info:     coreaudio-encoder.so
info: ---------------------------------
error: os_dlopen(../obs-plugins/obs-browser->../obs-plugins/obs-browser.so): dlopen(../obs-plugins/obs-browser.so, 257): image not found

info: ==== Startup complete ===============================================
error: Service '' not found
info: All scene data cleared
info: ------------------------------------------------
info: coreaudio: device 'Built-in Microphone' initialized
info: [Loaded global audio device]: 'Mic/Aux'
warning: Out of space trying to render glyphs
info: Video Capture Device: Selected device 'FaceTime HD Camera'
info: Video Capture Device: Using preset 1280x720
error: jack-input: jack_client_open Error:Could not create JACK client! JACK Input Client
error: Failed to create source 'JACK Input Client'!
info: Switched to scene 'Scene 4'
info: ------------------------------------------------
info: Loaded scenes:
info: - scene 'Scene 2':
info:     - source: 'Display Capture 2' (display_capture)
info:     - source: 'Video Capture Device' (av_capture_input)
info: - scene 'Scene 4':
info:     - source: 'Scene 2' (scene)
info:     - source: 'Group' (group)
info:         - source: 'Window Capture' (window_capture)
info:         - source: 'JACK Input Client' (jack_output_capture)
info: - scene 'Scene 5':
info:     - source: 'Color Source 2' (color_source_v2)
info:     - source: 'Introducing' (text_ft2_source_v2)
info: ------------------------------------------------
info: Switched to Preview/Program mode
info: ------------------------------------------------
info: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds (source: Mic/Aux)

info: Output 'virtualcam_output': stopping
info: Output 'virtualcam_output': Total frames output: 5208
info: Output 'virtualcam_output': Total drawn frames: 5206 (5209 attempted)
info: Output 'virtualcam_output': Number of lagged frames due to rendering lag/stalls: 3 (0.1%)

Edit: Here are my quicktime logs, which are similar to the ones posted above:

QuickTime Logs 
~% /Applications/QuickTime\ Player.app/Contents/MacOS/QuickTime\ Player 
2020-05-12 16:05:08.934 QuickTime Player[18528:142987] Error loading /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam:  dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam, 0x0106): symbol '_objc_opt_class' not found, expected in '/usr/lib/libobjc.A.dylib', needed by '/Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/MacOS/obs-mac-virtualcam'
2020-05-12 16:05:08.934 QuickTime Player[18528:142987] Cannot find function pointer PlugInMain for factory 35FDFF29-BFCF-4644-AB77-B759DE932ABE in CFBundle/CFPlugIn 0x7ff50157b720 </Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin> (bundle, not loaded)
GVA encoder info: recomputed for fps: 12.004802, gop size in pics: 12, gop size in sec: 1.000000

@johnboiles
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Thanks for the reports. Looks like all of the above have Symbol not found: _objc_opt_class. That's probably the place to start for supporting macOS < 10.15

@colindean
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So I followed the very convenient and straightforward build instructions (improved them a smidge in #89 and a little more in #90) and was able to build OBS and this plugin just fine, and it works: I was able to get an OBS Virtual Cam working in Firefox on https://meet.jit.si. It didn't work in Zoom but that's a known issue, IIRC.

I think the "trick" is going to be building the plugin on CI targeting an older version of macOS.

It appears that Github Actions supports only building on 10.15 (see runs-on docs) so maybe there's something to put into the build process to tell the compiler to target an older version of the macOS SDK.

I don't really know Xcode/CMake stuff, but I notice in src/dal-plugin/Info.plist that there's an DTSDKName key with a value of macosx10.15. Maybe that could be 10.14?

@jasongrout
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I don't really have experience with this either, but perhaps https://stackoverflow.com/a/58653850 is useful?

Thanks for noting that compiling the plugin works!

@jasongrout
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jasongrout commented May 13, 2020 •
edited

I compiled this plugin and obs on macos 10.14. It works! At least, I was able to see it in Chrome (using jitsi), and things seemed to work well. When I tried to use it from Quicktime, I was able to select the virtual camera, but I couldn't get it to show anything but the test card.

@johnboiles
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@colindean it's worth a try to change that I guess, but I don't think the Info.plist affects compilation or linking (though I might be wrong).

@Mesihas
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Mesihas commented May 13, 2020

Get this errors when trying to make:
AleDesktops-iMac:build aledesktop$ make -j Scanning dependencies of target obs-plugin Scanning dependencies of target dal-plugin [ 7%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/MachClient.mm.o [ 15%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/Device.mm.o [ 23%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/PlugIn.mm.o [ 53%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/PlugInMain.mm.o [ 53%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/PlugInInterface.mm.o [ 53%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/ObjectStore.mm.o [ 53%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/Stream.mm.o [ 61%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/CMSampleBufferUtils.mm.o [ 69%] Building CXX object src/dal-plugin/CMakeFiles/dal-plugin.dir/TestCard.mm.o [ 84%] Building CXX object src/obs-plugin/CMakeFiles/obs-plugin.dir/plugin-main.mm.o [ 84%] Building CXX object src/obs-plugin/CMakeFiles/obs-plugin.dir/MachServer.mm.o /Users/aledesktop/source/obs-mac-virtualcam/src/dal-plugin/ObjectStore.mm:89:14: error: use of undeclared identifier 'kCMIODevicePropertyDeviceHasStreamingError'; did you mean 'kCMIODevicePropertyDeviceHasChanged'? case kCMIODevicePropertyDeviceHasStreamingError: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kCMIODevicePropertyDeviceHasChanged /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/CoreMediaIO.framework/Headers/CMIOHardwareDevice.h:475:5: note: 'kCMIODevicePropertyDeviceHasChanged' declared here kCMIODevicePropertyDeviceHasChanged = 'diff', ^ /Users/aledesktop/source/obs-mac-virtualcam/src/dal-plugin/ObjectStore.mm:89:14: error: duplicate case value 'kCMIODevicePropertyDeviceHasChanged' case kCMIODevicePropertyDeviceHasStreamingError: ^ /Users/aledesktop/source/obs-mac-virtualcam/src/dal-plugin/ObjectStore.mm:41:14: note: previous case defined here case kCMIODevicePropertyDeviceHasChanged: ^ 2 errors generated. make[2]: *** [src/dal-plugin/CMakeFiles/dal-plugin.dir/ObjectStore.mm.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [src/dal-plugin/CMakeFiles/dal-plugin.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... /Users/aledesktop/source/obs-mac-virtualcam/src/obs-plugin/plugin-main.mm:34:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ 1 warning generated. [ 92%] Linking CXX shared module obs-mac-virtualcam.so [ 92%] Built target obs-plugin make: *** [all] Error 2

@jasongrout
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@Mesihas - what version of macOS are you on?

@mlalgjar
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I'd like to add a request for High Sierra (10.13.6) as it's the last OS X to support Syphon. Syphon is a great frame serve protocol that OBS uses (as well as MANY other audiovisual applications). Unfortunately the only way to get Syphon working on newer OS X versions is to disable system integrity protection.

And unfortunately for me, High Sierra is the last OS X version to support accelerated Nvidia drivers. Anything would be appreciated.

@gxalpha gxalpha mentioned this issue May 13, 2020
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@johnboiles
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johnboiles commented May 13, 2020 •
edited

@OBS127 shared this video on building things from source also that might come in handy for folks trying to run this on old macOS https://www.youtube.com/watch?v=CIYeb2m5a0g

@jasongrout that stack overflow link looks like the right direction for sure.

@johnboiles
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@mlalgjar if you want to help make this happen, please post your logs from OBS and Console.app. We don't have any logs from 10.13 yet I don't think. The first step is to understand what doesn't work.

@Mesihas
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Mesihas commented May 13, 2020

@jasongrout 10.14.6

@jasongrout
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More possibly relevant links for compiling on 10.15 for < 10.15.

@jasongrout jasongrout mentioned this issue May 13, 2020
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@johnboiles
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@jasongrout figured this out in #94! Thanks @jasongrout!! For those of you on 10.14, go try it by downloading the pkg file in the artifacts here and report back

For those of you on 10.13, we can try that next. Hopefully it's just as simple.

@jasongrout
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jasongrout commented May 14, 2020 •
edited

I just tried compiling on 10.13.6 with xcode 10.1 (Build version 10B61). I got what looks like the same error that @Mesihas posted above:

/<snip>/obs-mac-virtualcam/src/dal-plugin/ObjectStore.mm:89:14: error: use of undeclared identifier 'kCMIODevicePropertyDeviceHasStreamingError'; did you
      mean 'kCMIODevicePropertyDeviceHasChanged'?
        case kCMIODevicePropertyDeviceHasStreamingError:
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
             kCMIODevicePropertyDeviceHasChanged
/System/Library/Frameworks/CoreMediaIO.framework/Headers/CMIOHardwareDevice.h:475:5: note: 'kCMIODevicePropertyDeviceHasChanged' declared here
    kCMIODevicePropertyDeviceHasChanged                     = 'diff',
    ^
/<snip>/obs-mac-virtualcam/src/dal-plugin/ObjectStore.mm:89:14: error: duplicate case value 'kCMIODevicePropertyDeviceHasChanged'
        case kCMIODevicePropertyDeviceHasStreamingError:
             ^
/<snip>/obs-mac-virtualcam/src/dal-plugin/ObjectStore.mm:41:14: note: previous case defined here
        case kCMIODevicePropertyDeviceHasChanged:
             ^
2 errors generated.
make[2]: *** [src/dal-plugin/CMakeFiles/dal-plugin.dir/ObjectStore.mm.o] Error 1
make[2]: INTERNAL: Exiting with 7 jobserver tokens available; should be 6!
make[1]: *** [src/dal-plugin/CMakeFiles/dal-plugin.dir/all] Error 2
make: *** [all] Error 2

@jasongrout
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@Mesihas - what version of xcode do you have? xcodebuild -version

@johnboiles
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@jasongrout are you testing with a 10.13 vm or do you have a 10.13 computer around also? I'm trying your simple fix for 10.13 as well #96

@jasongrout
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I have a 10.13 computer that I thought I'd try compiling on before doing the fix. I'll try what you have in #96.

@jasongrout
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#98 fixes the compile error on 10.13 for me.

@johnboiles
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10.13 should also be supported now in the pkg installer [here]. I'd love for a few people to confirm it works for them on 10.13 before I cut the release.

Thanks @jasongrout for all your help!

@Jip-Hop
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Jip-Hop commented May 14, 2020

@jasongrout figured this out in #94! Thanks @jasongrout!! For those of you on 10.14, go try it by downloading the pkg file in the artifacts here and report back

For those of you on 10.13, we can try that next. Hopefully it's just as simple.

It's working for me now on 10.14 🥳

@speech-figure
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I'm really hoping someone could at least entertain the thought of making the plugin work within OS10.12, which requires using OBS 24.06 (higher versions of OBS don't work on 10.12). Is there an obvious hurdle to doing this, given the recent success with 10.13?
I'd love to help out by writing something myself but don't have the chops/experience/background/basic knowledge/tools/competence/etc. But it'd be great if anyone could say if that request is actually viable or not (I assume the OBS code base is changed significantly from v24 to 25). Apologies for the noise, but not sure where else to post this kind of a query.

@OBS127
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OBS127 commented May 14, 2020 via email

@OBS127
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OBS127 commented May 14, 2020 via email

@OBS127
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OBS127 commented May 14, 2020 via email

@jasongrout
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When I tried to use it from Quicktime, I was able to select the virtual camera, but I couldn't get it to show anything but the test card.

This now works for me. I think it just needed a reboot.

@ashleyjamesbrown
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10.13.6 here. I installed OBS latest. Ran it and it works fine.
I downloaded the latest pkg 5db91b4-v1.0.0 and installed it.
OBS will not open at all. Bounces and closes.

Main error in the Apple log.

Dyld Error Message:
  Symbol not found: _objc_alloc_init
  Referenced from: /Library/Application Support/obs-studio/*/obs-mac-virtualcam.so (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libobjc.A.dylib

@ashleyjamesbrown
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10.13 should also be supported now in the pkg installer [here]. I'd love for a few people to confirm it works for them on 10.13 before I cut the release.

Thanks @jasongrout for all your help!

unfortunately it doesnt work for me and OBS wont open at all anymore. I did remove the OBS folder/uninstall and then reboot and reinstall (but no package) and OBS will not open. Just bounces, and closes.

IS there anyway i can find all teh files the package installed in case for some reason its the older one and i cant overwrite it? Or is there another issue. Let me know what you need from me to support investigating.

@gxalpha
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gxalpha commented May 14, 2020 •
edited

Hey @ashleyjamesbrown,
regarding your first comment:
this is not the newest installer. Try this one.
(The readme link is probably wrong, I'll double check)

@gxalpha
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gxalpha commented May 14, 2020

IS there anyway i can find all teh files the package installed in case for some reason its the older one and i cant overwrite it? Or is there another issue. Let me know what you need from me to support investigating.

See the uninstalling section in the wiki under Installation

@ashleyjamesbrown
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Hey @ashleyjamesbrown,
regarding your first comment:
this is not the newest installer. Try this one.
(The readme link is probably wrong, I'll double check)

legend. yes the readme/releases seems wrong. ill give that a go.

@gxalpha
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gxalpha commented May 14, 2020

Ok I added a new release to the releases section and it should work if you (and everyone else) downloads it from there

@ashleyjamesbrown
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IT WORKS !!! Thanks so much. A quick install, reboot and Start Virtual Cam and it appeared in jit.si as a device to select. Yes its wierdly flipped everything but ill just transform everything in OBS. Nice one. My DnD can have a nice overlay now :-) Much appreciated

@gxalpha
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gxalpha commented May 14, 2020

Don't worry about the flip, it is only the preview of Jitsi.
Your partner will see what you see in OBS, so if you see everything correctly in the OBS preview, so will he.

@cbfreeborn
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Just downloaded and installed the obs-mac-virtualcam-a5a1e9e-master.pkg on my High Sierra 10.13.6 system running OBS 25.0.8 and it seems to work great! Also connects fine to Zoom 4.6.10 and 5.0.2. So grateful for the work that's be done on this package!! :))

@ocirema
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ocirema commented May 14, 2020

I also used obs-mac-virtualcam-09a3abf-master.pks in Mojave 14.0.6 and it works fine with Zoom 5.0.2.
IT'S ALIVE!!!!! MUHAAAAAA!!!

Thanks guys!. Looking great!

@johnboiles
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Ok great! Thanks for all the reports y'all! And thanks especially to @jasongrout who drove this effort!

Just promoted the pre-release @gxalpha made to a full release with v1.1.0 🎉

@OBS127
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OBS127 commented May 14, 2020 via email

@johnboiles
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I realized I forgot to actually change the version in the Info.plist in the plugin. I'm wondering if that was making it so that y'all had to reboot after installing the new plugin. I've replaced the 1.1.0 release with an updated version with the correct version numbers.

If you had to reboot to make the plugin work, would you mind re-downloading 1.1.0, reinstalling it, then seeing if it works in QuickTime without a reboot? This will help inform me on whether more work is needed in #109. Thanks!!

@Mesihas
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Mesihas commented May 15, 2020 •
edited

When I installed the first release for Mojave I didn't have to reboot to make it work, it just worked strait away. But I can try 1.1.0 if you want me to do it.

@johnboiles
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Yes please, I believe only people who have the plugin installed, and then install a new version, have had to restart

@Mesihas
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Mesihas commented May 15, 2020

ok, I installed 1.1.0 on top of the first version, started OBS then Virtual cam and QuickTime sees the virtual cam.

@Mesihas
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Mesihas commented May 15, 2020

In my case the plugin get installed on this path:
/Library/Application Support/obs-studio/plugins/obs-mac-virtualcam/bin/obs-mac-virtualcam.so

Is not showing the version number on finder (maybe will be useful) for future test

@johnboiles
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Yeah the version number is inside the Info.plist at /Library/CoreMediaIO/Plug-Ins/DAL/obs-mac-virtualcam.plugin/Contents/Info.plist

@OBS127
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OBS127 commented May 15, 2020 via email

@gxalpha
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gxalpha commented May 15, 2020

Regarding FaceTime see https://github.com/johnboiles/obs-mac-virtualcam/wiki/Compatibility#macOS-System-Apps-block-DAL-plugins, we can't really do anything about it

@OBS127
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OBS127 commented May 15, 2020 via email

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