OBS Gstreamer plugin

For Windows

1. Download and install OBS https://obsproject.com/download
2. Download and install Gstreamer https://gstreamer.freedesktop.org/download/ (MinGW 64-bit runtime installer, use Full installation)
   • IMPORTANT! Add gstreamer bin directory into PATH environment variable (System preferenses > Additional system params > Environment variables). Default bin directory location is C:\gstreamer\1.0\mingw_x86_64\bin
3. Download OBS Gstreamer plugin https://github.com/fzwoch/obs-gstreamer/releases (latest release, obs-gstreamer.zip file)
   • Extract obs-gstreamer.dll file from obs-gstreamer.zip
   • Copy obs-gstreamer.dll into C:\Program Files\obs-studio\obs-plugins\64bit directory (if OBS installed into default destination)
4. Run OBS, open "add source" menu, you'll see GStreamer Source

With default pipeline you must see default GStreamer test video

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.

From Cosmostreamer to OBS

UDP Raw H264

It is an incoming UDP stream, it may be blocked by Windows firewall. Disable firewall or add exception rule if not worked.

Enable UDP Raw H264 streaming in Cosmostreamer device settings. 192.168.1.67 it's my laptop IP, in your case use proper IP

And use this pipeline for OBS GStreamer source

udpsrc port=3000 buffer-size=600000000 ! h264parse ! avdec_h264  ! video.

TCP Raw H264

Use this pipeline for OBS GStreamer source. Only one TCP connection is supported in current Cosmostreamer version. 192.168.1.61 is a my Cosmostreamer IP address, use your own instead.

tcpclientsrc host=192.168.1.61 port=5252 ! h264parse ! avdec_h264  ! video.

RTSP

1. Enable RTSP streaming in Cosmostreamer device settings (Device settings -> Streaming -> RTSP)
2. Use this pipeline for OBS GStreamer source. 192.168.1.61 is a my Cosmostreamer IP address, use your own instead.

rtspsrc location=rtsp://192.168.1.61:554/video ! rtph264depay ! h264parse ! avdec_h264  ! video.

rtspsrc location="rtsp://192.168.50.1:554/video" ! rtph264depay ! parsebin ! decodebin ! videoconvert ! video. 

RTP

It is an incoming UDP stream, it may be blocked by Windows firewall. Disable firewall or add exception rule if not worked.

1. Enable RTP streaming in Cosmostreamer device settings. Fill "Clients" field with PC IP and port. For example, 192.168.1.67:5000
2. Use this pipeline for OBS GStreamer source

udpsrc port=5000 buffer-size=600000000 ! application/x-rtp,payload=96 ! rtph264depay ! h264parse ! avdec_h264  ! video.

SRT

OBS as caller

1. Enable SRT streaming in Cosmostreamer device settings (Device settings -> Streaming -> SRT). Enter srt://:9001 in SRT URL
2. Use this pipeline for OBS GStreamer source. 192.168.1.61 is a my Cosmostreamer IP address, use your own instead.

srtclientsrc uri=srt://192.168.1.61:9001 ! tsdemux ! h264parse ! avdec_h264  ! video.

OBS as listener

1. Enable SRT streaming in Cosmostreamer device settings (Device settings -> Streaming -> SRT). Enter srt://192.168.1.67:9001 in SRT URL, where 192.168.1.67 is a PC IP address.
2. Use this pipeline for OBS GStreamer source.

srtclientsrc uri=srt://:9001 ! tsdemux ! h264parse ! avdec_h264  ! video.