LM-Monitor

LM-Monitor is a live video monitor for iPhone that receives two professional broadcast protocols: NDI® and SRT.

Use it to confirm video and audio arrival on set, in the control room, or during streaming rehearsals — without firing up a laptop or a dedicated monitor.

Highlights:

- Automatic discovery of NDI® sources on the local network, one tap to full-screen preview

- Distraction-free black-background monitoring with a toggleable source-name overlay

- SRT receive in Caller, Listener, and Rendezvous mode

- Passphrase, Stream ID, latency, and I-frame interval are all configurable

- Simultaneous AAC audio with mute toggle

- Protocol picker on launch — pick NDI® or SRT for the current job

- Built-in "Licenses" screen that lists every third-party component (HaishinKit.swift, libsrt, NDI® SDK) and its attribution

Use cases:

- Verifying that a camera or switcher feed has actually reached the venue or the cloud

- Mixed NDI® + SRT environments where one device should cover both

- Validating NDI® Bridge or contribution feeds traveling over the public internet

- Multi-camera rehearsal checks before doors open

LM-Monitor is an NDI® compatible application. NDI® is a registered trademark of Vizrt NDI AB. SRT is a protocol created, open-sourced, and maintained by Haivision Systems Inc. SRT support is implemented using HaishinKit.swift (BSD-3-Clause) and libsrt (Mozilla Public License 2.0). See the in-app "Licenses" screen for full attribution and source links.