SundialSoft

CGImageSourceRef src = CGImageSourceCreateWithData((__bridge_retained CFDataRef)GIFData, NULL);
    if (src) 
    {
        size_t l = CGImageSourceGetCount(src);
        GIF_framesData = [NSMutableArray arrayWithCapacity:l];
        GIF_delayData = [NSMutableArray arrayWithCapacity:l];
        for (size_t i = 0; i < l; i++) 
        {
            CGImageRef img = CGImageSourceCreateImageAtIndex(src, i, NULL);
            
            CFDictionaryRef properties = CGImageSourceCopyPropertiesAtIndex(src, i, NULL);
            CFDictionaryRef gifProperties = (CFDictionaryRef)CFDictionaryGetValue(properties, kCGImagePropertyGIFDictionary);
            CFStringRef numDelay = (CFStringRef)CFDictionaryGetValue(gifProperties, kCGImagePropertyGIFDelayTime);
            NSString *delayStr = (__bridge_transfer NSString *)numDelay;
            NSLog(@"gifDelay %@",delayStr);
            [GIF_delayData addObject:delayStr];
            if (img) 
            {
                [GIF_framesData addObject:[UIImage imageWithCGImage:img]];
                CGImageRelease(img);
            }   
        }   
        CFRelease(src);
    }
    else