CODEWITHSUNDEEP
cpuredata
Abhishek Tirkey
Abhishek Tirkey

Reputation: 455

Communicating with Pure Data in C

I'm looking for a way to be able to communicate with a Pure Data patch via C programming - I suppose this is different from writing an external in C which involves writing patches themselves. I only need to communicate and make changes in existing patches. For instance, in the patch shown in the image: enter image description here

I need to find a way to change the delay parameters programmatically, in the case of the three objects delwrite~, *~, and delread~. I wish to write a simple C program that communicates with Pure Data, loads the patch and makes the required changes. Any insights would be appreciated.

Upvotes: -1

Views: 999

Answers (1)

umläute
umläute

Reputation: 31374

there are numerous ways to communicate with a running Pd instance.

The most straightforward one is to use network communication:

  • [netreceive] allows you to receive messages from another process, using the FUDI protocol. The following patch listens on UDP/9999 for incoming messages:

network controlled feedback patch

  • on the C-side, just create a normal UDP-socket and send the data to localhost:9999 (assuming your process runs on the same machine).

Alternative methods include using libpd, which is a library version of Pd and allows you to load Pd-patches directly in your program.

Upvotes: 2

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