playing part of hack on russir hackathon https://www.hackerleague.org/hackathons/russir-music-hackathon-2013/hacks/frinky-dot-fm

gistfile1.m

Application -> Build Phases -> Link Binary with Libraries -> Add QTKit.framework

add header to AppDelegate.h 
#import <QTKit/QTKit.h>

# in AppDelegate.h
@property (strong) QTMovie *movie;



# start playing track:

    NSString *string = ([self.textfield stringValue]);
    NSURL *url = [NSURL URLWithString:string];
    if ([QTMovie canInitWithURL:url]) {
        NSLog(@"can init...");
        NSError *error;
        self.movie = [QTMovie movieWithURL:url error:(&error)];
        NSLog(@"while creating: %@ %@", error, [error userInfo]);
        [self.movie autoplay];
        //add check if file opened, here
    }
    else {
        NSLog(@"no");
    }


# get and play next track

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL
                                                          URLWithString:@"https://gist.github.com/gsamat/47c715c7fa0c6776aa25/raw"]];
    NSData *response = [NSURLConnection sendSynchronousRequest:request
                                             returningResponse:nil error:nil];
    NSError *jsonParsingError = nil;
    NSDictionary *track = [NSJSONSerialization JSONObjectWithData:response
                                                              options:0 error:&jsonParsingError];
    NSLog(@"trackurl:%@",[track objectForKey:@"trackurl"]);
    
    // change track
    NSString *string = [track objectForKey:@"trackurl"];
    NSURL *url = [NSURL URLWithString:string];
    if ([QTMovie canInitWithURL:url]) {
        NSLog(@"can init...");
        NSError *error;
        self.movie = [QTMovie movieWithURL:url error:(&error)];
        NSLog(@"while creating: %@ %@", error, [error userInfo]);
        [self.movie autoplay];
        //add check if file opened, here
    }
    else {
        NSLog(@"no");
    }


# play/pause

if ([self.movie rate]==0) {
        [self.movie play];
    }
    else {
        [self.movie stop];
    }


#icon

    NSImage *myImage = [[NSImage alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://b9hyt39l.zvq.me/3c496646e6c360a0e0ff1fafbf3d60ce1b52f0477a8259975423d935fa2e18db.126x126.jpg"]]];
    if ([myImage isValid]) {
        NSLog(@"valid");
        NSImageView *myView = [[NSImageView alloc] init];
        [myView setImage:myImage];
        [[NSApp dockTile] setContentView: myView];
        [[NSApp dockTile] display];
    }
    else {
        NSLog(@"invalid");
    }