Just Play Pro & Just Live Pro v.2025.x · v.2025.x legacy documentation

5b. Live Input Signal Handling (v.2025.4)

Besides playing Videos and Graphics, our playout solutions also allow you to manage live input signals such as live studio signals or satellite feeds, and send them to the SDI or NDI®, SRT, UPD, RTMP, HLS, ST-2110 output.

Besides playing Videos and Graphics, our playout solutions also allow you to manage live input signals such as live studio signals or satellite feeds, and send them to the SDI or NDI®, SRT, UPD, RTMP, HLS, ST-2110 output.

We support switch to live in SD, HD and UHD, and the incoming signal and the output format, can be mixed for the channel (e.g., SDI IN / NDI OUT, SRT IN/NDI OUT).

Using an SDI based workflow, this can be done by…

  • …using the more traditional way by controlling a mixer/router.

  • …configuring the Playout Video device to do so.

With Switch to Live activated, the Live Input signal is grabbed from the SDI input and send to the Just Out engine. This process adds a delay or approximately 10 frames to the Live Input signal. This means that the signal, which has been received 10 frames ago, is visible at the output.

  • Works with all supported video devices, except the AJA KONA LHi and KONA LHe Plus.

  • Works in SD, HD and UHD, depending on the capabilities of the video device used for playout.

  • The incoming signal and the output format, can be mixed for the channel (e.g., SDI IN / NDI OUT, SDI IN/SRT OUT).

  • Live Input signal can be seen in the On Air view of the Just Control user interface.

  • VANC data which comes with the Live Input signal can be passed through to the output.

Using a Stream based live input workflow, this can be done by…

  • …using NDI®, SRT, UDP qualified Live Input sources alongside the classic SDI signals.

As for SDI Live Input it is crucial to use stable and frame rate accurate streaming input sources to obtain the best results.

Please refer to 2.8b NDI, SRT, UDP, RTMP, HLS Streaming Out (2025.4) for detailed information about the Input/Output setup for streaming sources.