track object deallocations on Apple frameworks

gistfile1.txt

#import <objc/runtime.h>

@implementation AVPlayerItem(oscahie)

+ (void)load
{
    Method origMethod = class_getInstanceMethod([self class], NSSelectorFromString(@"dealloc"));
    Method patchMethod = class_getInstanceMethod([self class], @selector(swizzledDealloc));

    method_exchangeImplementations(origMethod, patchMethod);
}

- (void)swizzledDealloc
{
    NSLog(@"deallocating object <%@: %p>", [self class], self);

    [self swizzledDealloc];
}

@end