External inbound streams

External inbound streams

Overview

Joinin accepts external input streams via SRT (Secure Reliable Transport) which can be used as a live Source. To send a SRT stream to your Joinin event use the details generated in the Studio when in rehearsal.
SRT endpoint details change each time your stop and restart rehearsal.






Network settings

SRT connections communicate over specific network ports which must be accessible by your source device.
Joinin SRT Port range: 27900-27920

Firewalls

  1. The firewall must allow the specific destination port used by SRT to be accessible from the Internet.
  2. The firewall must allow bi-directional UDP traffic.
  3. Port forwarding must be enabled on the firewall to allow data to flow to the IP address and port of the SRT destination device.
  4. Packet filtering must be disabled (to allow the SRT packets to pass through).

See the SRT Deployment Guide for further information.


Encoding settings

  1. Encoder: x264
  2. Resolution: 1920x1080
  3. Frames per second (FPS): 25
  4. Video bitrate: 4000kbps
  5. Keyframe interval: 2 seconds
  6. Profile: baseline
  7. Tune: zero latency
  8. Audio bitrate: 256kbps

OBS Set up details

Profile

Attached to this article is a prebuilt OBS Profile with default Joinin settings. Download and import to OBS for a fast set up.

To import into OBS
  1. Unzip the downloaded file
  2. Open OBS application
  3. Click 'Profile' in the top menu, then 'Import'
  4. Choose the unzipped 'Joinin OBS' folder


Settings: Stream

Service: Custom
Server: Enter the Stream URL copied from your event control page.
Stream Key: leave blank




Settings: Video



Settings: Output - Streaming




Settings: Output - Audio



vMix Set up details

Tutorial

vMix have created a tutorial for using SRT streams as an input and output.


Output settings

  1. Type: Caller
  2. Hostname: The "host" portion of the SRT link without the "srt://" prefix. E.g. "d231-asfahbhw.joinin.live"
  3. Port: the "port" portion of the SRT link.
  4. Latency (milliseconds): 200. If you experience dropped frame or jumpy video please try increasing this value.
  5. Passphrase: the "passphrase" portion of the SRT link.
  6. Key Length: 32
  7. Stream ID: blank



Quality




Teradek Core Set up details

Output settings

  1. Type: Caller
  2. Name: Name your stream
  3. Host: The "host" portion of the SRT link without the "srt://" prefix. E.g. "d231-asfahbhw.joinin.live"
  4. Port: the "port" portion of the SRT link.
  5. Stream ID: blank
  6. Encryption: AES-256
  7. Passphrase: the "passphrase" portion of the SRT link.
  8. Latency (milliseconds): 200. If you experience dropped frame or jumpy video please try increasing this value.



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