Removed the unused options for CGImageSourceCopyPropertiesAtIndex

Author: dreampiggy

SDWebImage/Core/SDImageIOAnimatedCoder.m

@@ -183,12 +183,8 @@ + (NSUInteger)imageLoopCountWithSource:(CGImageSourceRef)source {
 }
 
 + (NSTimeInterval)frameDurationAtIndex:(NSUInteger)index source:(CGImageSourceRef)source {
-    NSDictionary *options = @{
-        (__bridge NSString *)kCGImageSourceShouldCacheImmediately : @(YES),
-        (__bridge NSString *)kCGImageSourceShouldCache : @(YES) // Always cache to reduce CPU usage
-    };
     NSTimeInterval frameDuration = 0.1;
-    CFDictionaryRef cfFrameProperties = CGImageSourceCopyPropertiesAtIndex(source, index, (__bridge CFDictionaryRef)options);
+    CFDictionaryRef cfFrameProperties = CGImageSourceCopyPropertiesAtIndex(source, index, NULL);
     if (!cfFrameProperties) {
         return frameDuration;
     }
@@ -234,9 +230,8 @@ + (UIImage *)createFrameAtIndex:(NSUInteger)index source:(CGImageSourceRef)sourc
             };
         }
     }
-    // Some options need to pass to `CGImageSourceCopyPropertiesAtIndex` before `CGImageSourceCreateImageAtIndex`, or ImageIO will ignore them because they parse once :)
     // Parse the image properties
-    NSDictionary *properties = (__bridge_transfer NSDictionary *)CGImageSourceCopyPropertiesAtIndex(source, index, (__bridge CFDictionaryRef)options);
+    NSDictionary *properties = (__bridge_transfer NSDictionary *)CGImageSourceCopyPropertiesAtIndex(source, index, NULL);
     CGFloat pixelWidth = [properties[(__bridge NSString *)kCGImagePropertyPixelWidth] doubleValue];
     CGFloat pixelHeight = [properties[(__bridge NSString *)kCGImagePropertyPixelHeight] doubleValue];
     CGImagePropertyOrientation exifOrientation = (CGImagePropertyOrientation)[properties[(__bridge NSString *)kCGImagePropertyOrientation] unsignedIntegerValue];
@@ -515,11 +510,7 @@ - (void)updateIncrementalData:(NSData *)data finished:(BOOL)finished {
     CGImageSourceUpdateData(_imageSource, (__bridge CFDataRef)data, finished);
 
     if (_width + _height == 0) {
-        NSDictionary *options = @{
-            (__bridge NSString *)kCGImageSourceShouldCacheImmediately : @(YES),
-            (__bridge NSString *)kCGImageSourceShouldCache : @(YES) // Always cache to reduce CPU usage
-        };
-        CFDictionaryRef properties = CGImageSourceCopyPropertiesAtIndex(_imageSource, 0, (__bridge CFDictionaryRef)options);
+        CFDictionaryRef properties = CGImageSourceCopyPropertiesAtIndex(_imageSource, 0, NULL);
         if (properties) {
             CFTypeRef val = CFDictionaryGetValue(properties, kCGImagePropertyPixelHeight);
             if (val) CFNumberGetValue(val, kCFNumberLongType, &_height);