Listener mode: How to Broadcast Your Local Signal (SDI/NDI) Over IP via SRT Listener

By default, SRTStreamerPRO operates as a Caller for SRT streaming. Starting from version 1.2.3, it can also function in Listener mode.

Step 1: Profile Configuration

Profile configuration is the same as for Caller mode.

However, please note that some profile fields are ignored in Listener mode and can be filled with any value:

Destination host

Destination port

REMI Control

Lossless

These fields will be ignored in Listener mode

Step 2: Stream Configuration

To set the stream to Listener mode, in the “Advanced Options” section, specify the parameter

listener = IP:PORT

listener = PORT

Possible value examples:

listener = 9010 — The application will listen on all network interfaces on port 9010 (UDP).

listener = 192.168.1.33:9010 — The application will listen 9010(UDP) only on the specified IP address (for a specific Network Interface Card - NIC).

activate lister mode

Stream ID Field

The Stream ID field can be left empty.

But If you specify a Stream ID, all connecting clients will be required to provide the same ID.

A client that does not provide the correct Stream ID will be denied connection.

Step 3: Start streaming

press for start

no clients

1 client and 2 clients

How to conect clients(decoders)

For connect use standart SRT scheme:

srt://IP:PORT

optional you can add latency, passphrase,pbkeylen, streamid etc.

connection by VLC

FAQ

Q: How many clients can connect to a single Listener stream?

A: The current maximum is set to 5 simultaneous clients.

Q: Can I use a single physical input (e.g., SDI) for multiple streams, both as a Caller and a Listener?

A: Yes. Simply create two or more separate streams in the application. You can configure one stream to use the SDI input in Caller mode and another to use the same SDI input in Listener mode.

Q: I have configured everything, but my decoder/player cannot connect. What should I do?

A: First, make sure you can connect using VLC Player on the same PC where SRTStreamerPRO is running. Once that works, check your Firewall settings or try temporarily disabling it to see if it is blocking the connection.