obs-ndi

Network Audio/Video in OBS-Studio using NDI technology.

Features

• NDI Source : receive NDI video and audio in OBS
• NDI Output : transmit OBS video and audio to NDI
• NDI Filter (a.k.a NDI Dedicated Output) : transmit a single OBS source or scene audio to NDI

Requirements

• OBS >= 30.0.0 (Qt6 & x64)
• NDI 5 Runtime
  We are not allowed to directly distribute the NDI runtime here, but you can get it from either the links below, or installing NDI Tools, or the NDI SDK.

Install OBS-NDI

Download and install the Linux, MacOS, or Windows version at Releases.

• Linux
  1. Download obs-ndi-4.13.1-x86_64-linux-gnu.deb
  2. sudo dpkg -i obs-ndi-4.13.1-x86_64-linux-gnu.deb
  3. If this does not work then try:

  sudo ln -s /usr/lib/x86_64-linux-gnu/obs-plugins/obs-ndi.so /usr/local/lib/obs-plugins/obs-ndi.so
  sudo ln -s /usr/share/obs/obs-plugins/obs-ndi/ /usr/local/share/obs/obs-plugins/obs-ndi
  

  • Flatpak and similar installs of this plugin or OBS can cause complications; please experiment and report on our Discord server any problems and preferrably solutions.
• MacOS:
  1. Download obs-ndi-4.13.1-macos-universal.pkg
  2. Run obs-ndi-4.13.1-macos-universal.pkg
     If MacOS complains about the file, either:
     1. Allow it in System Settings->Privacy & Security
        -or-
     2. sudo xattr -r -d com.apple.quarantine obs-ndi-4.13.1-macos-universal.pkg
• Windows:
  1. Download obs-ndi-4.13.1-windows-x64-Installer.exe
  2. Run obs-ndi-4.13.1-windows-x64-Installer.exe

Download & Install The NDI 5 Runtime

• Linux: ./CI/libndi-get.sh
• MacOS: http://ndi.link/NDIRedistV5Apple
• Windows: http://ndi.link/NDIRedistV5

Uninstall

Reference: https://obsproject.com/kb/plugins-guide#install-or-remove-plugins

Linux

1. sudo rm /usr/lib/x86_64-linux-gnu/obs-plugins/obs-ndi.so
   sudo rm -rf /usr/share/obs/obs-plugins/obs-ndi/
   

2. Optionally delete NDI Runtime:

   sudo rm /usr/local/lib/libndi*
   sudo ldconfig
   

MacOS

1. Open Finder
2. Show hidden files with Command-Shift-.
3. Delete ~/Library/Application Support/obs-studio/plugins/obs-ndi.plugin
4. Optionally delete NDI Tools/Runtime:
   1. Finder->Applications: Delete all NDI * applications
   2. Delete /Library/Application Support/NewTek/NDI
   3. Delete /usr/local/lib/libndi*

Windows

1. Add/Remove Programs: obs-ndi
2. Delete %ProgramFiles%\obs-studio\obs-plugins\64bit\obs-ndi.*
3. Delete %ProgramFiles%\obs-studio\data\obs-plugins\obs-ndi\
4. Optionally delete NDI Tools/Runtime:
   1. Add/Remove Programs:
      1. NDI 5 Runtime
      2. NDI 5 Tools
      3. NDI 5 SDK
      4. NDI 5 Advanced SDK
   2. Delete %ProgramFiles%\NDI\NDI 5 Runtime
   3. Delete %ProgramFiles%\NDI\NDI 5 Tools
   4. Delete %ProgramFiles%\NDI\NDI 5 SDK
   5. Delete %ProgramFiles%\NDI\NDI 5 Advanced SDK

Development

Building

Windows

In PowerShell Core 7+ terminal:

git clone https://github.com/obs-ndi/obs-ndi.git
cd obs-ndi

First build:

.github/scripts/Build-Windows.ps1 && .github/scripts/Package-Windows.ps1 -BuildInstaller

Subsequent builds:

.github/scripts/Build-Windows.ps1 -SkipDeps && .github/scripts/Package-Windows.ps1 -BuildInstaller

See Help .github/scripts/Build-Windows.ps1 for more details.

If you get SecurityError/PSSecurityException/UnauthorizedAccess error then:

Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope CurrentUser

Linux

NOTE: Only Debian and Ubuntu are officially supported

In terminal:

git clone https://github.com/obs-ndi/obs-ndi.git
cd obs-ndi
.github/scripts/build-linux
...
.github/scripts/package-linux
...
sudo cp -r release/obs-plugins/64bit/* /usr/local/lib/x86_64-linux-gnu/obs-plugins/
...
sudo cp -r release/data/obs-plugins/* /usr/local/share/obs/obs-plugins/
...
sudo ldconfig

Subsequent builds can be sped up by using build-linux --skip-deps.
See build-linux --help for more details.

OS X

In terminal:

git clone https://github.com/obs-ndi/obs-ndi.git
cd obs-ndi
.github/scripts/build-macos
...
.github/scripts/package-macos
...
cp -r release/obs-ndi.plugin ~/Library/Application\ Support/obs-studio/plugins/
...

Subsequent builds can be sped up by using build-macos --skip-deps.
See build-macos --help for more details.

Formatting

Requires [obsproject/tools/]clang-format@13, cmakelang, and zsh installed.

From a Linux or MacOS terminal:

./build-aux/run-clang-format
./build-aux/run-cmake-format