How do I send and receive network MIDI data in iOS?

Question

How do I send and receive network MIDI data in iOS? I am able to resolve the server using bonjour and apply the service to a MIDI connection, but I don't know where to go from there. The documentation seems to be lacking, and there's not much information online.

Answer 1

Essentially, you need to connect to the session via Bonjour as you have done, and within your iOS app:

• Create a client using MIDIClientCreate
• Create an input port using MIDIInputPortCreate
  • This takes a pointer to a C function that will be called when MIDI data is received
  • You need to connect it to the MIDINetworkSession's defaultSession using MIDIPortConnectSource - connect it to the sourceEndpoint
• Create an output port using MIDIOutputPortCreate
  • You can send data to the network session using MIDISend - send the packets to to the MIDINetworkSession defaultSession's destinationEndpoint

I wrote a few blog posts about this a while back, see here for source code etc.

Part 1

Part 2

Part 3