apple.vision

Class VNStatefulRequest

java.lang.Object

org.moe.natj.general.NativeObject

org.moe.natj.objc.ObjCObject

apple.NSObject

apple.vision.VNRequest

apple.vision.VNImageBasedRequest

apple.vision.VNStatefulRequest

All Implemented Interfaces:

NSCopying, NSObject

Direct Known Subclasses:

VNDetectTrajectoriesRequest, VNGeneratePersonSegmentationRequest

public class VNStatefulRequest
extends VNImageBasedRequest

A request that builds evidence over time by being reused on multiple images.

The request requires the use of CMSampleBuffers with timestamps as input; otherwise, a VNErrorTimeStampNotFound error will be returned. VNStatefulRequest is used as a base class of other requests, so no objects of this class should be created directly.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	VNStatefulRequest.Block_initWithFrameAnalysisSpacingCompletionHandler

Nested classes/interfaces inherited from class apple.vision.VNRequest

VNRequest.Block_completionHandler_ret, VNRequest.Block_initWithCompletionHandler

Nested classes/interfaces inherited from class apple.NSObject

NSObject.Function_instanceMethodForSelector_ret, NSObject.Function_methodForSelector_ret

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	VNStatefulRequest(org.moe.natj.general.Pointer peer)

Method Summary

Modifier and Type	Method and Description
static boolean	accessInstanceVariablesDirectly()
static VNStatefulRequest	alloc()
static VNStatefulRequest	allocWithZone(org.moe.natj.general.ptr.VoidPtr zone)
static boolean	automaticallyNotifiesObserversForKey(java.lang.String key)
static void	cancelPreviousPerformRequestsWithTarget(java.lang.Object aTarget)
static void	cancelPreviousPerformRequestsWithTargetSelectorObject(java.lang.Object aTarget, org.moe.natj.objc.SEL aSelector, java.lang.Object anArgument)
static NSArray<java.lang.String>	classFallbacksForKeyedArchiver()
static org.moe.natj.objc.Class	classForKeyedUnarchiver()
static long	currentRevision()
static java.lang.String	debugDescription_static()
static long	defaultRevision()
static java.lang.String	description_static()
CMTime	frameAnalysisSpacing() The reciprocal of maximum rate at which buffers will be processed.
static long	hash_static()
VNStatefulRequest	init() Creates a new VNRequest with no completion handler.
VNStatefulRequest	initWithCompletionHandler(VNRequest.Block_initWithCompletionHandler completionHandler) Creates a new VNRequest with an optional completion handler.
VNStatefulRequest	initWithFrameAnalysisSpacingCompletionHandler(CMTime frameAnalysisSpacing, VNStatefulRequest.Block_initWithFrameAnalysisSpacingCompletionHandler completionHandler) Create a new video-based stateful request.
static NSObject.Function_instanceMethodForSelector_ret	instanceMethodForSelector(org.moe.natj.objc.SEL aSelector)
static NSMethodSignature	instanceMethodSignatureForSelector(org.moe.natj.objc.SEL aSelector)
static boolean	instancesRespondToSelector(org.moe.natj.objc.SEL aSelector)
static boolean	isSubclassOfClass(org.moe.natj.objc.Class aClass)
static NSSet<java.lang.String>	keyPathsForValuesAffectingValueForKey(java.lang.String key)
long	minimumLatencyFrameCount() The minimum number of frames that the request has to process on before reporting back any observation.
static VNStatefulRequest	new_objc()
CMTime	requestFrameAnalysisSpacing()
static boolean	resolveClassMethod(org.moe.natj.objc.SEL sel)
static boolean	resolveInstanceMethod(org.moe.natj.objc.SEL sel)
static void	setVersion_static(long aVersion)
static org.moe.natj.objc.Class	superclass_static()
static NSIndexSet	supportedRevisions()
static long	version_static()

Methods inherited from class apple.vision.VNImageBasedRequest

regionOfInterest, setRegionOfInterest

Methods inherited from class apple.vision.VNRequest

cancel, completionHandler, copyWithZone, preferBackgroundProcessing, results, revision, setPreferBackgroundProcessing, setRevision, setUsesCPUOnly, usesCPUOnly

Methods inherited from class apple.NSObject

accessibilityActivate, accessibilityActivationPoint, accessibilityAssistiveTechnologyFocusedIdentifiers, accessibilityAttributedHint, accessibilityAttributedLabel, accessibilityAttributedUserInputLabels, accessibilityAttributedValue, accessibilityContainerType, accessibilityCustomActions, accessibilityCustomRotors, accessibilityDecrement, accessibilityDragSourceDescriptors, accessibilityDropPointDescriptors, accessibilityElementAtIndex, accessibilityElementCount, accessibilityElementDidBecomeFocused, accessibilityElementDidLoseFocus, accessibilityElementIsFocused, accessibilityElements, accessibilityElementsHidden, accessibilityFrame, accessibilityHint, accessibilityIncrement, accessibilityLabel, accessibilityLanguage, accessibilityNavigationStyle, accessibilityPath, accessibilityPerformEscape, accessibilityPerformMagicTap, accessibilityRespondsToUserInteraction, accessibilityScroll, accessibilityTextualContext, accessibilityTraits, accessibilityUserInputLabels, accessibilityValue, accessibilityViewIsModal, addObserverForKeyPathOptionsContext, attemptRecoveryFromErrorOptionIndex, attemptRecoveryFromErrorOptionIndexDelegateDidRecoverSelectorContextInfo, autoContentAccessingProxy, awakeAfterUsingCoder, awakeFromNib, class_objc, classForCoder, classForKeyedArchiver, copy, dealloc, debugDescription, description, dictionaryWithValuesForKeys, didChangeValueForKey, didChangeValueForKeyWithSetMutationUsingObjects, didChangeValuesAtIndexesForKey, doesNotRecognizeSelector, fileManagerShouldProceedAfterError, fileManagerWillProcessPath, finalize_objc, forwardingTargetForSelector, forwardInvocation, hash, indexOfAccessibilityElement, isAccessibilityElement, isEqual, isKindOfClass, isMemberOfClass, isProxy, methodForSelector, methodSignatureForSelector, mutableArrayValueForKey, mutableArrayValueForKeyPath, mutableCopy, mutableOrderedSetValueForKey, mutableOrderedSetValueForKeyPath, mutableSetValueForKey, mutableSetValueForKeyPath, observationInfo, observeValueForKeyPathOfObjectChangeContext, performSelector, performSelectorInBackgroundWithObject, performSelectorOnMainThreadWithObjectWaitUntilDone, performSelectorOnMainThreadWithObjectWaitUntilDoneModes, performSelectorOnThreadWithObjectWaitUntilDone, performSelectorOnThreadWithObjectWaitUntilDoneModes, performSelectorWithObject, performSelectorWithObjectAfterDelay, performSelectorWithObjectAfterDelayInModes, performSelectorWithObjectWithObject, prepareForInterfaceBuilder, provideImageDataBytesPerRowOrigin_Size_UserInfo, removeObserverForKeyPath, removeObserverForKeyPathContext, replacementObjectForCoder, replacementObjectForKeyedArchiver, respondsToSelector, self, setAccessibilityActivationPoint, setAccessibilityAttributedHint, setAccessibilityAttributedLabel, setAccessibilityAttributedUserInputLabels, setAccessibilityAttributedValue, setAccessibilityContainerType, setAccessibilityCustomActions, setAccessibilityCustomRotors, setAccessibilityDragSourceDescriptors, setAccessibilityDropPointDescriptors, setAccessibilityElements, setAccessibilityElementsHidden, setAccessibilityFrame, setAccessibilityHint, setAccessibilityLabel, setAccessibilityLanguage, setAccessibilityNavigationStyle, setAccessibilityPath, setAccessibilityRespondsToUserInteraction, setAccessibilityTextualContext, setAccessibilityTraits, setAccessibilityUserInputLabels, setAccessibilityValue, setAccessibilityViewIsModal, setIsAccessibilityElement, setNilValueForKey, setObservationInfo, setShouldGroupAccessibilityChildren, setValueForKey, setValueForKeyPath, setValueForUndefinedKey, setValuesForKeysWithDictionary, shouldGroupAccessibilityChildren, superclass, validateValueForKeyError, validateValueForKeyPathError, valueForKey, valueForKeyPath, valueForUndefinedKey, willChangeValueForKey, willChangeValueForKeyWithSetMutationUsingObjects, willChangeValuesAtIndexesForKey

Methods inherited from class org.moe.natj.objc.ObjCObject

equals, toString

Methods inherited from class org.moe.natj.general.NativeObject

finalize, getPeer, getPeerPointer

Methods inherited from class java.lang.Object

clone, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

VNStatefulRequest

protected VNStatefulRequest(org.moe.natj.general.Pointer peer)

Method Detail

accessInstanceVariablesDirectly

public static boolean accessInstanceVariablesDirectly()

alloc

public static VNStatefulRequest alloc()

allocWithZone

public static VNStatefulRequest 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()

currentRevision

public static long currentRevision()

debugDescription_static

public static java.lang.String debugDescription_static()

defaultRevision

public static long defaultRevision()

description_static

public static java.lang.String description_static()

frameAnalysisSpacing

public CMTime frameAnalysisSpacing()

The reciprocal of maximum rate at which buffers will be processed.

The request will not process buffers that fall within the requestFrameAnalysisSpacing after it has performed the analysis. The analysis is not done by wall time but by analysis of of the time stamps of the samplebuffers being processed.

hash_static

public static long hash_static()

init

public VNStatefulRequest init()

Description copied from class: VNRequest

Creates a new VNRequest with no completion handler.

Overrides:

init in class VNImageBasedRequest

initWithCompletionHandler

public VNStatefulRequest initWithCompletionHandler(VNRequest.Block_initWithCompletionHandler completionHandler)

Description copied from class: VNRequest

Creates a new VNRequest with an optional completion handler.

Overrides:

initWithCompletionHandler in class VNImageBasedRequest

Parameters:

completionHandler - The block to be invoked after the request has completed its processing. The completion handler gets executed on the same dispatch queue as the request being executed.

initWithFrameAnalysisSpacingCompletionHandler

public VNStatefulRequest initWithFrameAnalysisSpacingCompletionHandler(CMTime frameAnalysisSpacing,
                                                                       VNStatefulRequest.Block_initWithFrameAnalysisSpacingCompletionHandler completionHandler)

Create a new video-based stateful request.

Parameters:

frameAnalysisSpacing - The reciprocal of maximum rate at which buffers will be processed. The request will not process buffers that fall within the frameAnalysisSpacing after it has performed the analysis. The analysis is not done by wall time but by analysis of of the time stamps of the samplebuffers being processed.

completionHandler - The block to be invoked after the request has completed its processing. The completion handler gets executed on the same dispatch queue as the request being executed.

instanceMethodForSelector

public static NSObject.Function_instanceMethodForSelector_ret instanceMethodForSelector(org.moe.natj.objc.SEL aSelector)

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)

minimumLatencyFrameCount

public long minimumLatencyFrameCount()

The minimum number of frames that the request has to process on before reporting back any observation. This information is provided by the request once initialized with its required paramters.

Video based request often need a minimum number of frames before they can report back any observation. An example would be that a movement detection requires at least 5 frames to be detected. The minimumLatencyFrameCount for that request would report 5 and only after 5 frames have been processed an observation would be returned in the results. This latency is indicative of how responsive a request is in respect to the incoming data.

new_objc

public static VNStatefulRequest new_objc()

requestFrameAnalysisSpacing

public CMTime requestFrameAnalysisSpacing()

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()

supportedRevisions

public static NSIndexSet supportedRevisions()

version_static

public static long version_static()