- (void)setVideoSettings:(NSDictionary*)videoSettings;
- (NSDictionary*)videoSettings;
- (CrAVCaptureConnection*)connectionWithMediaType:(NSString*)mediaType;
- (void)setVideoSettings:(NSDictionary*)videoSettings;
- (NSDictionary*)videoSettings;
- (CrAVCaptureConnection*)connectionWithMediaType:(NSString*)mediaType;