Implement multiconfiguration

[vmsh0]

Multiconfiguration is needed for some CONFIG options (some of the "video:" ones in particular).

Please ignore everything below this line.

If you don't plan to implement it can you help with a workaround?

var adrone = ardrone = require("ar-drone");

var drone = ardrone.createClient();

var UdpControl = drone._udpControl,
    CmdCreator = UdpControl._cmdCreator,
    CmdQueue = UdpControl._cmds;

var app_id = "JoyStickControl",
    pro_id = "JoyStickControlP0",
    ses_id = "JoyStickControlS0";

var pushCmd = function(type, args) {
    cmd = CmdCreator.raw(type, args, false, {}, function(e){console.log(e)});
    CmdQueue.push(cmd);
}

var pushAuthenticatedConfig = function(args) {
    pushCmd("CONFIG_IDS", [app_id, pro_id, ses_id]);
    pushCmd("CONFIG", args);
}

clearInterval(drone._interval);
drone._interval = null;

pushCmd("CONFIG", ["custom:application_id", app_id]);
pushCmd("CONFIG", ["custom:profile_id", pro_id]);
pushCmd("CONFIG", ["custom:session_id", ses_id]);
pushAuthenticatedConfig(["general:navdata_demo", "TRUE"]);
pushAuthenticatedConfig(["control:outdoor", OUTDOOR]);
pushAuthenticatedConfig(["control:flight_without_shell", SHELL]);
pushAuthenticatedConfig(["video:video_codec", "131"]); // 131 = H264_720P_CODEC

UdpControl.flush();

drone._setInterval(30);

The Drone ignores these commands or they don't get sent at all, I don't know.

[wiseman]

I've done some work toward implementing multiconfig (see #33 and PR #76) but I don't know when I'll have the opportunity to finish it. I can't think of a workaround, sorry.

[vmsh0]

I may want to look into that myself, as I need that urgently, and that would be a good chance to learn some more Node programming.
I was thinking of this:

• In UdpControl.flush() check if command is CONFIG (when processing blocking commands)
• If it is CONFIG, craft a CONFIG_IDS command on the fly
• Send CONFIG_IDS and CONFIG in the same packet
• Wait for ACK and repeat for other queued blocking commands (this is already done obviously)

All of this, only if Multiconfiguration has been set up with a function of UdpControl, to which the caller passes application and user id (the session id is generated randomly as required by Parrot).
This function would be also exposed by the Client object, if one doesn't use the UdpControl directly.
If it has not been set up then just do everything the normal way.

If you think this would work and you are ok with me doing this, I'd like to try.

[wiseman]

Sorry I didn't respond sooner. My take on it is that working code wins, so if you can figure out a way to make this happen, we can always clean it up later if we need to.