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GStreamer OBS Studio plugin

  1. An OBS Studio source plugin to feed GStreamer launch pipelines into OBS Studio.

This plugin has interesting use cases but may be difficult to understand and is clunky use if you are not familiar with GStreamer.

  1. An OBS Studio encoder plugin to use GStreamer encoder elements into OBS Studio.

This may be interesting for people trying to run OBS Studio to different platforms like the RaspberryPi or NVIDIA Tegra.

Prebuilt

Experimental prebuilt 64-bit Windows plugin is available. You still require the official GStreamer run-time to be installed.

Experimental prebuilt macOS plugin available. You still require the GStreamer run-time installed via Homebrew or Macports.

Experimental prebuilt Linux plugin is available. You still require the GStreamer run-time installed via your Linux ditribution's package manager.

Usage

The source plugin makes use of the GStreamer launch pipeline descriptions. Please refer to the GStreamer documentation to understand what this means:

https://gstreamer.freedesktop.org/documentation/tools/gst-launch.html

This plugins provides two media sinks named video and audio. These are the media sinks that hand over data to OBS Studio. So your pipeline should connect to these sinks.

An example pipeline:

videotestsrc is-live=true ! video/x-raw, framerate=30/1, width=960, height=540 ! video. audiotestsrc wave=ticks is-live=true ! audio/x-raw, channels=2, rate=44100 ! audio.

RTMP example:

uridecodebin uri=rtmp://184.72.239.149/vod/mp4:bigbuckbunny_1500.mp4 name=bin ! queue ! video. bin. ! queue ! audio.

RTSP example:

uridecodebin uri=rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov name=bin ! queue ! video. bin. ! queue ! audio.

HLS example:

uridecodebin uri=http://184.72.239.149:1935/vod/mp4:sample.mp4/playlist.m3u8 name=bin ! queue ! video. bin. ! queue ! audio.

Linux webcam example:

v4l2src ! decodebin ! video.

If you don't understand what is happening in these lines please check the GStreamer documentation as mentioned above!

Build

$ meson --buildtype=release build
$ ninja -C build

# optional for installing the plugin
$ sudo ninja -C build install

It will install into the obs-plugins directory inside whatever libdir in meson is set to.

E.g.

meson --buildtype=release --libdir=lib

will install at /usr/local/lib/obs-plugins.

If you want it to install outside of /usr/local you will have to set a prefix as well.

E.g.

meson --buildtype=release --libdir=lib --prefix=/usr

You can also make it install in your user home directory (wherever that directory was exactly..)