macOS ndi convert to sdi/hdmi to ndi
NDI Source for OSX allows you to connect SDI and HDMI sources through your BlackMagic Design video interface and convert them in real time to an NDI IP Video Stream.
A version of NDI Source for AJA devices is also available, but not sold via the Mac App Store. Click here for more information.
If you are concerned about compatibility, try the test demo version of NDISource, which allows testing, but inserts mutes into the NDI stream as a demo limitation.