Media Share

A tool to help with watch party for private viewing.

Building the server

The server is built using docker, but you could use the script to set up your own server.

docker build server -t rtmp-server

Running the server

docker run -d -p 1935:1935 rtmp-server

Streaming

OBS

To set up OBS to stream to this server you will need to set the following config:

Server URL: rtmp://<IP_ADDR>/live
Stream Key: live

FFMPEG

Capturing Screen

ffmpeg -video_size WIDTHxHEIGHT -framerate FPS -f x11grab -i :0.0+OFFX,OFFY output.mp4

Capture Screen with ALSA

ffmpeg -video_size WIDTHxHEIGHT -framerate FPS -f x11grab -i :0.0+OFFX,OFFY -f alsa -ac 2 -i hw:0 output.mkv

Capture Screen with Pulse

ffmpeg -video_size WIDTHxHEIGHT -framerate FPS -f x11grab -i :0.0+OFFX,OFFY -f pulse -ac 2 -i default output.mkv

Streaming with RTMP

ffmpeg -re -i "output.mkv" -c:v copy -c:a aac -ar 44100 -ac 1 -f flv rtmp://IP_ADDR/live/live

-re specifies that input will be read at its native framerate.

-i path to our input file.

-c:v set to copy, meaning that you’re copying over the video format

-c:a has other parameters, namely aac -ar 44100 -ac 1, because you need to resample the audio to an RTMP-friendly format. aac is a widely supported audio codec, 44100 hz is a common frequency, and -ac 1 specifies the first version of the AAC spec for compatibility purposes.

-f flv wraps the video in an flv format container for maximum compatibility with RTMP.

Varibles

WIDTH: Width of stream

Height: Height of stream

FPS: Frames per Second of the stream

OFFX: Screen X offset

OFFY: Screen Y offset

VLC

If there is a will there is a way.

Playback

Use VLC.

1. MEDIA > Open Network Stream.
2. Enter URL: rmtp://IP_ADDR/live/live
3. Play

Sources to help with installtion

https://www.digitalocean.com/community/tutorials/how-to-set-up-a-video-streaming-server-using-nginx-rtmp-on-ubuntu-20-04 https://www.servermania.com/kb/articles/nginx-rtmp/