CI: Add OBS browser + Apple silicon support

[Developer-Ecosystem-Engineering]

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 them in the obs-build-dependencies dir (which lives next to the obs-studio checkout will need creating if never built before i.e. mkdir ../obs-build-dependencies)

Rename so they're in expected format:

     macos-qt-5.15.2-arm64-2021-06-20.tar.xz
     macos-deps-arm64-2021-06-20.tar.xz

Then extract them so they're in /tmp/obsdeps:

mkdir -p /tmp/obsdeps
/usr/bin/tar -xf ../obs-build-dependencies/macos-deps-arm64-2021-06-20.tar.xz -C /tmp/obsdeps
/usr/bin/tar -xf ../obs-build-dependencies/macos-qt-5.15.2-arm64-2021-06-20.tar.xz -C /tmp/obsdeps
/usr/bin/xattr -r -d com.apple.quarantine /tmp/obsdeps

Copy cef_binary_90.6.7+g19ba721+chromium-90.0.4430.212_macosarm64_minimal.zip to obs-build-dependencies
Instructions here obsproject/obs-browser#310

Extract it and name extracted dir cef_binary_4430_macosarm64

cd ../obs-build-dependencies/cef_binary_4430_macosarm64
mkdir build
cd build
cmake -DCMAKE_CXX_FLAGS="-std=c++11 -stdlib=libc++ -Wno-deprecated-declarations" -DCMAKE_EXE_LINKER_FLAGS="-std=c++11 -stdlib=libc++" -DPROJECT_ARCH=arm64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.13 ..
/usr/bin/make -j8
mkdir libcef_dll
cd ../../../obs-studio
./CI/full-build-macos.sh -b

Iterative builds for local testing can then by done by doing:

rm -rf build/OBS.app && ./CI/full-build-macos.sh -b && codesign --deep -f -s - build/OBS.app

Description

Update build scripts to include CEF

Motivation and Context

The other part of obsproject/obs-browser#310 to bring in OBS Browser support natively on Apple silicon

How Has This Been Tested?

M1 iMac and M1 MBP
11.5.1
Setup a session recording video + playing WebGL in OBS Browser

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.

[iambenmitchell]

Is there any update on this? -- I have been compiling OBS manually on M1 with the cmake method, but this no longer works

[jp9000]

Huh is this supposed to be breaking on CI multiplatform due to M1?

[RytoEX]

Huh is this supposed to be breaking on CI multiplatform due to M1?

Looks like the deps file it tried to download doesn't exist. I don't know that it ever existed. Perhaps it should be pointing to the new 2021-08-17 macOS deps file? @DDRBoxman ?

[Developer-Ecosystem-Engineering]

Is there any update on this? -- I have been compiling OBS manually on M1 with the cmake method, but this no longer works

Could you elaborate on what you mean? With the dependencies now built in obs-debs (obsproject/obs-deps#60) it should be possible to build OBS Studio for Apple silicon.

With the changes in obsproject/obs-browser#310, you should be able to use OBS Browser on Apple silicon as well. For 310 you'll need to compile CEF yourself, since the built artifact is just a hosted by the project, it doesn't appear to be a part of "obs-deps" directly, so it doesn't get compiled as part of the build process from what we see.

[Developer-Ecosystem-Engineering]

Might be worth closing this in favor of #5155 since 5155 is written against the now merged build changes too. Will confer with @PatTheMav

[PatTheMav]

I'd keep it open for now because I haven't had access to a patched arm64 build of CEF yet to test if #5155 works with it.

[WizardCM]

Closing in favour of #5155.