OBS Mac M1/ARM compile progress - Scripting

Heino Falcke · Aug 8, 2021

Following some recipes on Reddit (e.g., https://www.reddit.com/r/obs/comments/njwbxl/compiling_obs_for_apple_silicon_m1/) I have been able to compile OBS natively on the new Mac M1 ARM processor. I need to do this, because the Rosetta emulation comes with a significant performance penalty and for what I need to do (several sources in our church and some special previews) I can’t even stream with 25 FPS/HD with Rosetta (but can do this when using the ARM/M1 code).

I was able to compile ndi-obs and the Advanced Scene Switcher and they both work (which is really nice!). I also run Lua-Scripts. That also compiles with the latest luajit beta, however, when running even a simple script (eg. a countdown timer) OBS crashes after 1-2 mins (just counting down). I am afraid this has to do with an issue in Luajit (pcall??), but wonder whether anyone has been able to get OBS Lua scripting working natively on an M1?

callimeron · Aug 9, 2021

countdown timer script worked.

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4695 views on Imgur: The magic of the Internet

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callimeron · Aug 9, 2021

There are multiple ways to build for Apple Silicon.
Please try them out.

GitHub - carlosonunez/obs-installer-for-apple-silicon: Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac

Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac - carlosonunez/obs-installer-for-apple-silicon

github.com

Compile OBS for Apple Silicon

Youtube Video

iambenmitchell.medium.com

CI: Update build script to create arm64 builds for Apple silicon by Developer-Ecosystem-Engineering · Pull Request #4714 · obsproject/obs-studio

Description Update Sparkle to universal Update full-build-macos to support arch Point at an arm64 CEF variant Motivation and Context The resulting OBS Studio app will build native and run on Appl...

github.com

OBS(Apple Silicon arm64)をビルドする

M1 MacなどのApple Silicon搭載のMac上でネイティブに動作するOBSをソースコードからビルドする方法

www.kilinbox.net

CI: Add OBS browser + Apple silicon support by Developer-Ecosystem-Engineering · Pull Request #5063 · obsproject/obs-studio

Complete build including OBS Browser native support on Apple silicon Download artifacts from here: https://github.com/obsproject/obs-deps/pull/60/checks?check_run_id=2869389632 Unzip them and put t...

github.com

Heino Falcke · Aug 9, 2021

Interesting to hear that countdown timer works for you (I assume this is a .lua script?). It doesn't work for me on two different computers.

In any case, thank you, for this useful list. I actually used the one from Ben Mitchell in your list. Which of the versions did you use? Did you have to do anything special to include lua scripting? (I had to).

callimeron said:
There are multiple ways to build for Apple Silicon.
Please try them out.

GitHub - carlosonunez/obs-installer-for-apple-silicon: Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac

Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac - carlosonunez/obs-installer-for-apple-silicon

github.com

Compile OBS for Apple Silicon

Youtube Video

iambenmitchell.medium.com

CI: Update build script to create arm64 builds for Apple silicon by Developer-Ecosystem-Engineering · Pull Request #4714 · obsproject/obs-studio

Description Update Sparkle to universal Update full-build-macos to support arch Point at an arm64 CEF variant Motivation and Context The resulting OBS Studio app will build native and run on Appl...

github.com

OBS(Apple Silicon arm64)をビルドする

M1 MacなどのApple Silicon搭載のMac上でネイティブに動作するOBSをソースコードからビルドする方法

www.kilinbox.net

CI: Add OBS browser + Apple silicon support by Developer-Ecosystem-Engineering · Pull Request #5063 · obsproject/obs-studio

Complete build including OBS Browser native support on Apple silicon Download artifacts from here: https://github.com/obsproject/obs-deps/pull/60/checks?check_run_id=2869389632 Unzip them and put t...

github.com

Heino Falcke · Aug 9, 2021

Sorry, just now watched the video clip. So, indeed this is an M1 compile with a .lua script (so disregard my question in brackets above). Mine crashed after 1:50 secs, your's didn't. So, that still leaves the question which of these compile recipes did you use ? (and which brew targets did you use - luajit doesn't compile via homebrew)?

Heino Falcke said:
Interesting to hear that countdown timer works for you (I assume this is a .lua script?). It doesn't work for me on two different computers.

In any case, thank you, for this useful list. I actually used the one from Ben Mitchell in your list. Which of the versions did you use? Did you have to do anything special to include lua scripting? (I had to).

callimeron · Aug 9, 2021

Heino Falcke said:
Sorry, just now watched the video clip. So, indeed this is an M1 compile with a .lua script (so disregard my question in brackets above). Mine crashed after 1:50 secs, your's didn't. So, that still leaves the question which of these compile recipes did you use ? (and which brew targets did you use - luajit doesn't compile via homebrew)?

Hmm, I don't remember, but I think it was one of the following methods.

CI: Update build script to create arm64 builds for Apple silicon by Developer-Ecosystem-Engineering · Pull Request #4714 · obsproject/obs-studio

Description Update Sparkle to universal Update full-build-macos to support arch Point at an arm64 CEF variant Motivation and Context The resulting OBS Studio app will build native and run on Appl...

github.com

OBS(Apple Silicon arm64)をビルドする

M1 MacなどのApple Silicon搭載のMac上でネイティブに動作するOBSをソースコードからビルドする方法

www.kilinbox.net

neonyme · Aug 10, 2021

Is there any way that I could get the Advanced Scene Switcher compiled for M1/ARM? I spent quite a lot of time to have a setup of OBS and plugins that is now well up-n-running on my M1 iMac, so I'm not willing to rebuild/reinstall anything at this time... but this is the plugin i'm missing the most. It would be wonderful if I could get my hand on a package just for this plugin! :) Thanks!

callimeron · Aug 10, 2021

neonyme said:
Is there any way that I could get the Advanced Scene Switcher compiled for M1/ARM? I spent quite a lot of time to have a setup of OBS and plugins that is now well up-n-running on my M1 iMac, so I'm not willing to rebuild/reinstall anything at this time... but this is the plugin i'm missing the most. It would be wonderful if I could get my hand on a package just for this plugin! :) Thanks!

from https://github.com/WarmUpTill/SceneSwitcher

compiled here. not tested.

firestorage | メッセージ

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download password bnmihfsi

neonyme · Aug 12, 2021

callimeron said:
from https://github.com/WarmUpTill/SceneSwitcher

compiled here. not tested.

Oh man, you just saved my forthcoming livestream event! I have tested it, and works perfectly for my use case (timed sequence). Wonderful. Thank you very much for this, I really really appreciate!

Bernard

Heino Falcke · Aug 12, 2021

It was quite straightforward to compile the advanced scene switcher "in tree". I cloned the GIT rep of the advanced scene switcher into obs-studio/UI/frontend-plugins/

cd obs-studio/UI/frontend-plugins/
git clone --recursive https://github.com/WarmUpTill/SceneSwitcher.git

and edited CMakeLists.txt to include
add_subdirectory(SceneSwitcher)

BTW, I also added obs-ndi
add_subdirectory(obs-ndi)

or compile directly
cd obs-studio/UI/frontend-plugins/
git clone --recursive https://github.com/Palakis/obs-ndi.git
cd obs-ndi
mkdir build && cd build
cmake -DLIBOBS_INCLUDE_DIR="/Users/falcke/Git/obs-studio/libobs"
-DLIBOBS_LIB="/Users/falcke/Git/obs-studio/libobs/libobs.dylib"
-DOBS_FRONTEND_LIB="/Users/falcke/Git/obs-studio/build/UI/obs-frontend-api/libobs-frontend-api.dylib"
-DQt5Core_DIR=/opt/homebrew/Cellar/qt\@5/5.15.2/lib/cmake/Qt5Core/
-DQt5Widgets_DIR=/opt/homebrew/Cellar/qt\@5/5.15.2/lib/cmake/Qt5Widgets/
..

BTW - you just to make sure you have the correct libndi.4.dylib for ARM and copy it to /usr/local/lib/

neonyme said:
Is there any way that I could get the Advanced Scene Switcher compiled for M1/ARM? I spent quite a lot of time to have a setup of OBS and plugins that is now well up-n-running on my M1 iMac, so I'm not willing to rebuild/reinstall anything at this time... but this is the plugin i'm missing the most. It would be wonderful if I could get my hand on a package just for this plugin! :) Thanks!

Heino Falcke · Aug 12, 2021

Strange. It sill doesn't work for me. Can't read method 2 well, but it doesn't seem to do anything special for LUA scripting (but i see Python mentioned), and method 1 doesn't automatically include obslua if you hadn't installed it already yourself. (I had it and also tried Method 1, so OBS compiled with lua, but then crashed already when loading a script). Could it be that you had an older version of luajit installed already?

callimeron said:
Hmm, I don't remember, but I think it was one of the following methods.

CI: Update build script to create arm64 builds for Apple silicon by Developer-Ecosystem-Engineering · Pull Request #4714 · obsproject/obs-studio

Description Update Sparkle to universal Update full-build-macos to support arch Point at an arm64 CEF variant Motivation and Context The resulting OBS Studio app will build native and run on Appl...

github.com

OBS(Apple Silicon arm64)をビルドする

M1 MacなどのApple Silicon搭載のMac上でネイティブに動作するOBSをソースコードからビルドする方法

www.kilinbox.net

callimeron · Aug 13, 2021

Heino Falcke said:
Strange. It sill doesn't work for me. Can't read method 2 well, but it doesn't seem to do anything special for LUA scripting (but i see Python mentioned), and method 1 doesn't automatically include obslua if you hadn't installed it already yourself. (I had it and also tried Method 1, so OBS compiled with lua, but then crashed already when loading a script). Could it be that you had an older version of luajit installed already?

I'm sorry. I don't know why it crashes in your environment.

I recorded a video of me building OBS for your reference.

imgur.com

Imgur: The magic of the Internet

imgur.com

hakihaki95 · Aug 20, 2021

I am building new version. and Lua script works well.
I used this script https://www.kilinbox.net/2021/02/obsarmbuild.html
and changed new cef binary address.
new binary code has no cefBrowserSettings.web_security = STATE_DISABLED;
I could solve this problem with https://qiita.com/kitazaki/items/2484a5475bbe89426c06
open "plugins/obs-browser/obs-browser-source.cpp"
and find "cefBrowserSettings.web_security = STATE_DISABLED;"
remove this line or add "//" in front of this line.
That's all.
I upload my script. and Copy it to CI folder.
and run.

shiggitay · Aug 21, 2021

callimeron said:
There are multiple ways to build for Apple Silicon.
Please try them out.

GitHub - carlosonunez/obs-installer-for-apple-silicon: Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac

Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac - carlosonunez/obs-installer-for-apple-silicon

github.com

When I try and run that script I get this error:

/tmp/obs/plugins/obs-outputs/librtmp/handshake.h:29:10: fatal error: 'mbedtls/arc4.h' file not found
#include <mbedtls/arc4.h>
^~~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [plugins/obs-outputs/CMakeFiles/obs-outputs.dir/librtmp/rtmp.c.o] Error 1
make[1]: *** [plugins/obs-outputs/CMakeFiles/obs-outputs.dir/all] Error 2
make: *** [all] Error 2
[Fri Aug 20 20:14:28 EDT 2021] FATAL: Unable to build OBS; see above logs for more info. Try running this instead: REPACKAGE=true ./install.sh

Can anyone help with that? Or can someone post a binary?

hakihaki95 · Aug 21, 2021

hakihaki95 said:
I am building new version. and Lua script works well.
I used this script https://www.kilinbox.net/2021/02/obsarmbuild.html
and changed new cef binary address.
new binary code has no cefBrowserSettings.web_security = STATE_DISABLED;
I could solve this problem with https://qiita.com/kitazaki/items/2484a5475bbe89426c06
open "plugins/obs-browser/obs-browser-source.cpp"
and find "cefBrowserSettings.web_security = STATE_DISABLED;"
remove this line or add "//" in front of this line.
That's all.
I upload my script. and Copy it to CI folder.
and run.

you need to run
./full-build-mac-arm64.sh -p -b
And, you can find new compiled one in "build" folder. app and dmg. Both are the same thing.

shiggitay said:
When I try and run that script I get this error:

/tmp/obs/plugins/obs-outputs/librtmp/handshake.h:29:10: fatal error: 'mbedtls/arc4.h' file not found
#include <mbedtls/arc4.h>
^~~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [plugins/obs-outputs/CMakeFiles/obs-outputs.dir/librtmp/rtmp.c.o] Error 1
make[1]: *** [plugins/obs-outputs/CMakeFiles/obs-outputs.dir/all] Error 2
make: *** [all] Error 2
[Fri Aug 20 20:14:28 EDT 2021] FATAL: Unable to build OBS; see above logs for more info. Try running this instead: REPACKAGE=true ./install.sh

Can anyone help with that? Or can someone post a binary?

There is some problem with newest mbedlts.
use this.

GitHub - zfauser/obs-installer-for-apple-silicon: Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac

Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac - zfauser/obs-installer-for-apple-silicon

github.com

shiggitay · Aug 27, 2021

hakihaki95 said:
you need to run
./full-build-mac-arm64.sh -p -b
And, you can find new compiled one in "build" folder. app and dmg. Both are the same thing.

There is some problem with newest mbedlts.
use this.

GitHub - zfauser/obs-installer-for-apple-silicon: Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac

Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac - zfauser/obs-installer-for-apple-silicon

github.com

I used that fork and I'm still getting that same error. I don't have ./full-build-mac-arm64.sh -p -b. Can't you just post a binary you were able to compile?

shiggitay · Aug 27, 2021

hakihaki95 said:
you need to run
./full-build-mac-arm64.sh -p -b
And, you can find new compiled one in "build" folder. app and dmg. Both are the same thing.

There is some problem with newest mbedlts.
use this.

GitHub - zfauser/obs-installer-for-apple-silicon: Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac

Conveniently build and install OBS from source on your ultra-fast Apple M1 MacBook or Mac - zfauser/obs-installer-for-apple-silicon

github.com

EDIT: I actually went to that Japanese site and I c/p'd all the command line stuff and I got it building, but it fails at the last step:

[100%] Built target obs
[OBS-Studio] Creating macOS app bundle
[OBS-Studio] Preparing OBS.app bundle
+ Copy binary and plugins...
mv: rename ./OBS.app/Contents/Resources/data/obs-scripting/_obspython.so to ./OBS.app/Contents/MacOS/_obspython.so: No such file or directory
+ ERROR during build step: bundle app

No matter what I do I can't even launch the resulting OBS.app that's generated in the build directory. Help? Are you on the OBS Discord? Here's an invite link just in case you're not there already: https://discord.gg/obsproject.

Heino Falcke · Aug 27, 2021

You can simply comment out all lines in full-build-macos-arm64.sh that contain obspython

# ./OBS.app/Contents/MacOS/_obspython.so

# /bin/mv ./OBS.app/Contents/Resources/data/obs-scripting/_obspython.so ./OBS.app/Contents/MacOS/
# /bin/mv ./OBS.app/Contents/Resources/data/obs-scripting/obspython.py ./OBS.app/Contents/MacOS/

Heino Falcke · Aug 28, 2021

To add the advanced scene switcher:
add line ./OBS.app/Contents/PlugIns/advanced-scene-switcher.so
to BUNDLE_PLUGINS=(
in full-build-macos-arm64.sh

in the Git clone of obs-studio download the source code of the advanced scene switcher:
cd obs-studio/UI/frontend-plugins/
git clone --recursive https://github.com/WarmUpTill/SceneSwitcher.git

Then modify the obs-studio/UI/frontend-plugins/CMakeLists.txt file and add an entry for the scene switcher:
add_subdirectory(SceneSwitcher)

finally rerun the build script full-build-macos-arm64.sh

Heino Falcke · Aug 29, 2021

Finally, I was able to compile a version of OBS running natively on M1, that includes lua scripting, the Advanced Scence Switcher, and obs-ndi. I used the script by hakihaki95 and slightly modified it to avoid the error with python. I have attached the script and the notes/commands I used to compile the whole thing. This could probably be turned into a complete script by someone.

OBS Mac M1/ARM compile progress - Scripting

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