Package apple.avfoundation

Class AVCaptureMetadataInput

  • All Implemented Interfaces:
    NSObject
    public class AVCaptureMetadataInput
extends AVCaptureInput
    AVCaptureMetadataInput AVCaptureMetadataInput is a concrete subclass of AVCaptureInput that provides a way for clients to supply AVMetadataItems to an AVCaptureSession. Instances of AVCaptureMetadataInput are input sources for AVCaptureSession that provide AVMetadataItems to an AVCaptureSession. AVCaptureMetadataInputs present one and only one AVCaptureInputPort, which currently may only be connected to an AVCaptureMovieFileOutput. The metadata supplied over the input port is provided by the client, and must conform to a client-supplied CMFormatDescription. The AVMetadataItems are supplied in an AVTimedMetadataGroup.

    • Constructor Detail

      • AVCaptureMetadataInput

        protected AVCaptureMetadataInput​(org.moe.natj.general.Pointer peer)

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • allocWithZone

        public static java.lang.Object allocWithZone​(org.moe.natj.general.ptr.VoidPtr zone)

      • automaticallyNotifiesObserversForKey

        public static boolean automaticallyNotifiesObserversForKey​(java.lang.String key)

      • cancelPreviousPerformRequestsWithTarget

        public static void cancelPreviousPerformRequestsWithTarget​(java.lang.Object aTarget)

      • cancelPreviousPerformRequestsWithTargetSelectorObject

        public static void cancelPreviousPerformRequestsWithTargetSelectorObject​(java.lang.Object aTarget,
                                                                         org.moe.natj.objc.SEL aSelector,
                                                                         java.lang.Object anArgument)

      • classFallbacksForKeyedArchiver

        public static NSArray<java.lang.String> classFallbacksForKeyedArchiver()

      • classForKeyedUnarchiver

        public static org.moe.natj.objc.Class classForKeyedUnarchiver()

      • debugDescription_static

        public static java.lang.String debugDescription_static()

      • description_static

        public static java.lang.String description_static()

      • hash_static

        public static long hash_static()

      • instanceMethodSignatureForSelector

        public static NSMethodSignature instanceMethodSignatureForSelector​(org.moe.natj.objc.SEL aSelector)

      • instancesRespondToSelector

        public static boolean instancesRespondToSelector​(org.moe.natj.objc.SEL aSelector)

      • isSubclassOfClass

        public static boolean isSubclassOfClass​(org.moe.natj.objc.Class aClass)

      • keyPathsForValuesAffectingValueForKey

        public static NSSet<java.lang.String> keyPathsForValuesAffectingValueForKey​(java.lang.String key)

      • metadataInputWithFormatDescriptionClock

        public static AVCaptureMetadataInput metadataInputWithFormatDescriptionClock​(CMFormatDescriptionRef desc,
                                                                             CMClockRef clock)
        metadataInputWithFormatDescription:clock: Returns an AVCaptureMetadataInput instance that allows a client to provide AVTimedMetadataGroups to an AVCaptureSession. This method returns an instance of AVCaptureMetadataInput that can be used to capture AVTimedMetadataGroups supplied by the client to an AVCaptureSession.
        Parameters:
        desc - A CMFormatDescription that defines the metadata to be supplied by the client. Throws an NSInvalidArgumentException if NULL is passed.
        clock - A CMClock that provided the timebase for the supplied samples. Throws an NSInvalidArgumentException if NULL is passed.
        Returns:
        An AVCaptureMetadataInput instance.

      • new_objc

        public static java.lang.Object new_objc()

      • resolveClassMethod

        public static boolean resolveClassMethod​(org.moe.natj.objc.SEL sel)

      • resolveInstanceMethod

        public static boolean resolveInstanceMethod​(org.moe.natj.objc.SEL sel)

      • setVersion_static

        public static void setVersion_static​(long aVersion)

      • superclass_static

        public static org.moe.natj.objc.Class superclass_static()

      • version_static

        public static long version_static()

      • appendTimedMetadataGroupError

        public boolean appendTimedMetadataGroupError​(AVTimedMetadataGroup metadata,
                                             org.moe.natj.general.ptr.Ptr<NSError> outError)
        appendTimedMetadataGroup: Provides metadata to the AVCaptureSession. The provided AVTimedMetadataGroup will be provided to the AVCaptureSession. The group's presentation timestamp is expressed in the context of the clock supplied to the initializer. It is not required that the AVTimedMetadataGroup have a duration; an empty AVTimedMetadataGroup can be supplied to denote a period of no metadata.
        Parameters:
        metadata - An AVTimedMetadataGroup of metadata. Will throw an exception if nil. In order to denote a period of no metadata, an empty AVTimedMetadataGroup should be passed.

      • initWithFormatDescriptionClock

        public AVCaptureMetadataInput initWithFormatDescriptionClock​(CMFormatDescriptionRef desc,
                                                             CMClockRef clock)
        initWithFormatDescription:clock: Creates an AVCaptureMetadataInput instance that allows a client to provide AVTimedMetadataGroups to an AVCaptureSession. This method creates an instance of AVCaptureMetadataInput that can be used to capture AVTimedMetadataGroups supplied by the client to an AVCaptureSession.
        Parameters:
        desc - A CMFormatDescription that defines the metadata to be supplied by the client. Throws NSInvalidArgumentException if NULL is passed.
        clock - A CMClock that provided the timebase for the supplied samples. Throws NSInvalidArgumentException if NULL is passed.
        Returns:
        An AVCaptureMetadataInput instance, or nil, if the device could not be used for capture.