MDP: send from Output Rule back to MDP.

Hi espiegel123 ,

I'm not at all sure whether MDP even supports the +I flag. I have a feeling it doesn't, so even injecting back into the top of the ruleset might not work.

The only way I can think of doing this would be to use MidiFire as a loopback processor to handle the inject events. Probably not what you want to hear.

Here is how it could work:

1. In MidiFire add both the MidiFire source/in and the MidiFire dest/out as well as a Stream Byter module. Connect them as follows:

MidiFire in -> Stream Byter -> MidiFire out

We now have a loop so we need to break it and handle inject events. The format of your inject events will be of significance here. For this example I am going to only support 3 byte events (notes and CC's) as inject candidates.

2. In MDP output StreamByter, we will wrap the desired inject event into a specific sysex message, say something like this (I have coloured in the inject message):

SND F0 7D 22 B0 12 34 F7

Obviously MDP needs to be configured to send and receive to/from MidiFire's virtual ports.

3. Finally in MidiFire's StreamByter you would do something like:

IF M0 == F0 7D 22 # match our 'special' sysex header
  IF M3 < C0 # 3 byte message (note, CC)
    SND M3 M4 M5 # send extracted inject message
  END
END
XX = XX +B # block all incoming messages


Regards, Nic.