How did you get hold of ...

mattstevens / dmap-parser

C parser for Digital Media Access Protocols (DMAP, DMCP, DAAP, and DACP)

MIT License

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How did you get hold of ... #1

Closed jkiddo closed 11 years ago

jkiddo commented 11 years ago

Hi Matt

I have made an implementation of the DMAP protocol family like yourself but I wonder where you got some of the codes from listed in the blob/master/dmap_parser.c.

If I run the http call content-codes against my iTunes installation on a Windows box, I don't get all the codes that you have listed, so I was wondering if this method has been your only source of information in order for you to create the list of dmap types in dmap_parser

mattstevens commented 11 years ago

The entries not from content-codes were mapped from a couple sources:

Message exchange between iTunes and the Remote app, especially the getproperty requests. In these messages Remote asks for properties by name and gets the fourchar code back in the response.
The output of strings on the iTunes binary. This lists all the long-form names that iTunes knows about, I was able to map some of these either by an equivalent fourchar name or by querying the property through a getproperty request (only a few are supported though).

jkiddo commented 11 years ago

Arh ... okay -

I've also used a couple of different sources and done sniffing through message exchanging. I never had the time to use the getProperty but always known it was a possibility.

Reading through the binary did not cross my mind until you said it - and of course that an obvious approach. If you wan't then have a look at my Jolivia implementation - I think I have some mappings that you don't.

mattstevens commented 11 years ago

Thanks, I didn't know about DPAP. I've added the codes from iPhoto's /content-codes endpoint plus a few others taken from iTunes.