Skip to content

Outputs

NDI outputs

Introduction

NDI sends the output over the network, using a lossy compression. The bitrate is much lower than SMPTE 2110, and you can send most resolutions on a single 1Gb cable, but being a compressed format, the quality is not as good.

Settings

  • Name: NDI source name as seen on the network; falls back to the output name if empty
  • Groups: comma-separated NDI groups the source belongs to
  • Resolution: free, no restriciton
  • Frequency: taken from the Media Server's output frequency
  • Audio: Onlyview can embed the output audio in the NDI stream

The stream is sent as YCbCr 4:2:2 (UYVY); there is no alpha channel. There is no manual network interface selection needed : the NDI protocol chooses the best interface automatically.

Limitations

  • Like Decklink, when an NDI output is enabled, it drives the server's frame pacing (clocked to the NDI framerate), so NDI, SDI and SMPTE 2110 outputs cannot control frame pacing simultaneously — do not mix them on the same server.
  • A server cannot be NDI-only: at least one regular screen output is required