Running DepthAI on Apple M1 Based Macs

Brandon

So we got our Mac mini M1, and gave it a quick try running DepthAI on it. Got our prebuilt wheels (for Intel CPUs - x86_64) working very well using the Rosetta emulator.

First, the native Apple Silicon support for Homebrew is still being actively worked on (with several issues still existing), so I didn't attempted installing it / building from sources. See https://github.com/Homebrew/brew/issues/7857

The steps followed:

Install Rosetta (note it may be already installed, for example attempting to install other apps (current TeamViewer) may prompt to install Rosetta first):
softwareupdate --install-rosetta
To run commands with x86_64 emulation, it is possible to prefix them with arch -x86_64

But there's an easier way, to open the terminal app directly using Rosetta. For example, I copied Terminal to Desktop, renamed it to Terminal-x86_64 , and tick the checkbox Open using Rosetta:

Then after opening the terminal, it can be checked under what architecture it runs using uname -m

with Rosetta it prints: x86_64
native: arm64

After that, it's just the standard procedure to install Brew (it installed python 3.8.2 by default), clone depthai repo, running ./install_requirements.py , and finally ./depthai_demo.py.

Cheers,
The Luxonis Team

smd58tex

I was able to follow the instructions here for Mac with no issues on my M1 Macbook Air, however I used iterm2, and not terminal. I also did not run it in rosetta mode.

I am, however, having issues with connectivity on both a USBA-> C cable that came with the camera with an additional USBA->C adapter, and a short USBC/Thunderbolt cable (which I would assume would work)

Running with --force_usb2 works for now.

Brandon

smd58tex Thanks for following up!

RobotRoss

With a new Oak-D-Lite on my Mac Mini M1 Monterey, using a 2nd Rosetta enabled Terminal that shows "uname -m" is x86_64, I was unable to run "python3 -m pip install depthai", apparently due to conflict with the "default" installation in /opt/homebrew. Collecting depthai
Using cached depthai-2.14.0.0.tar.gz (325 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... done Building wheels for collected packages: depthai
Building wheel for depthai (pyproject.toml) ... error
ERROR: Command errored out with exit status 1:
command: /opt/homebrew/opt/python@3.9/bin/python3.9 /opt/homebrew/lib/python3.9/site-packages/pip/vendor/pep517/in_process/in_process.py build_wheel /var/folders/_j/1spktm_s02xgtcbwv77rwfn80000gn/T/tmplmufspx7 ....and lots more errors !

erik

Hello RobotRoss , what do you mean by 2nd Rosetta enabled terminal? We should have prebuilt wheels for that (x86_64), so I am not sure why it's trying to build new wheels for that. Which python version are you using?
Thanks, Erik

RobotRoss

Erik, Tnx for response. My (Homebrew) installed python3 from arm64 terminal.app (uname -m arm6) is:
which python3
/opt/homebrew/bin/python3
Ross@Kepler-2 ~ % python3 --version
Python 3.9.9
From x86_64 terminal-rosetta2.app
which python
/usr/bin/python
Ross@Kepler-2 ~ % python3 --version
Python 3.9.9

I have a 1st native “terminal.app”, uname -m arm64. Homebrew is installed in /opt/homebrew & there is text in the PATH environment to this folder. This is the default, per this response to 'brew config" from the Native arm64 and Rosetta x86_64 terminal.
From arm64 terminal.app
Ross@Kepler-2 ~ % brew doctor
Your system is ready to brew.
Ross@Kepler-2 ~ % brew config
HOMEBREW_VERSION: 3.3.9
ORIGIN: https://github.com/Homebrew/brew
HEAD: 96137bc19e68398ebbb7033379df288cd8b9a3f9
Last commit: 4 weeks ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 551bdc22ddc5695e9db3e7a59c30b4dba83fc904
Core tap last commit: 23 hours ago
Core tap branch: master
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_CORE_GIT_REMOTE: https://github.com/Homebrew/homebrew-core
HOMEBREW_MAKE_JOBS: 8
Homebrew Ruby: 2.6.8 => /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby
CPU: octa-core 64-bit arm_firestorm_icestorm
Clang: 13.0.0 build 1300
Git: 2.32.0 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 7.77.0 => /usr/bin/curl
macOS: 12.1-arm64
CLT: 13.2.0.0.1.1638488800
Xcode: 13.2.1
Rosetta 2: false

From x86_64 terminal-rosetta2.app
Ross@Kepler-2 ~ % brew config
HOMEBREW_VERSION: 3.3.10
ORIGIN: https://github.com/Homebrew/brew
HEAD: 385892f3d27dcab0f5a1cb47c3927d9d65ed007c
Last commit: 33 hours ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: aa2f643fd4215653c61d968ca54ff5c56b6f3da6
Core tap last commit: 20 hours ago
Core tap branch: master
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_REPOSITORY: /opt/homebrew
HOMEBREW_CELLAR: /opt/homebrew/Cellar
HOMEBREW_CASK_OPTS: []
HOMEBREW_CORE_GIT_REMOTE: https://github.com/Homebrew/homebrew-core
HOMEBREW_MAKE_JOBS: 8
Homebrew Ruby: 2.6.8 => /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby
CPU: octa-core 64-bit westmere
Clang: 13.0.0 build 1300
Git: 2.34.1 => /opt/homebrew/bin/git
Curl: 7.77.0 => /usr/bin/curl
macOS: 12.1-x86_64
CLT: 13.2.0.0.1.1638488800
Xcode: 13.2.1
Rosetta 2: true
Ross@Kepler-2 ~ % uname -m
x86_64

The 2nd terminal-rosetta.app was configured enabled for Rosetta2, as described by your Brandon Dec 20 note “69-depthai-apple-m1-based-macs”. uname -m x86_64. There is a 2nd homebrew installed in the pre-M1 folder /use/local/homebrew This text is not in the PATH. I ran the python3 -m install_requirements.py from this Rosetta2 enabled terminal, with the earlier posted result. The system seems to want to run the arm64 version of Homebrew Python to build your depth wheels, even while using the x86_64 terminal, probably because of the PATH text , with the resulting errors. Is there a way to force the system to stay with the x86_64 terminal Homebrew for running python3 ?

So since the Mac M1 has been out for over a year now and presumably Homebrew has matured, can you release a native arm64 depthai wheel? I’d rather not potentially break my current Homebrew jury rigging the x86_64 Rosetta2 terminal. I note there are other Data Scientist packages in arm64 Homebrew , such as numpy, scipy.
Regards
RobotRoss