apple.avfaudio

Class AVAudioTime

java.lang.Object

org.moe.natj.general.NativeObject

org.moe.natj.objc.ObjCObject

apple.NSObject

apple.avfaudio.AVAudioTime

All Implemented Interfaces:

NSObject

public class AVAudioTime
extends NSObject

AVAudioTime

Represent a moment in time.

AVAudioTime is used in AVAudioEngine to represent time. Instances are immutable.

A single moment in time may be represented in two different ways: 1. mach_absolute_time(), the system's basic clock. Commonly referred to as "host time." 2. audio samples at a particular sample rate

A single AVAudioTime instance may contain either or both representations; it might represent only a sample time, only a host time, or both.

Rationale for using host time: [a] internally we are using AudioTimeStamp, which uses host time, and it seems silly to divide [b] it is consistent with a standard system timing service [c] we do provide conveniences to convert between host ticks and seconds (host time divided by frequency) so client code wanting to do what should be straightforward time computations can at least not be cluttered by ugly multiplications and divisions by the host clock frequency.

Nested Class Summary

Nested classes/interfaces inherited from class apple.NSObject

NSObject.Function_instanceMethodForSelector_ret, NSObject.Function_methodForSelector_ret

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
static boolean	accessInstanceVariablesDirectly()
static AVAudioTime	alloc()
static AVAudioTime	allocWithZone(org.moe.natj.general.ptr.VoidPtr zone)
AudioTimeStamp	audioTimeStamp() [@property] audioTimeStamp
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 java.lang.String	debugDescription_static()
static java.lang.String	description_static()
AVAudioTime	extrapolateTimeFromAnchor(AVAudioTime anchorTime) extrapolateTimeFromAnchor:
static long	hash_static()
long	hostTime() [@property] hostTime
static long	hostTimeForSeconds(double seconds) hostTimeForSeconds:
AVAudioTime	init()
AVAudioTime	initWithAudioTimeStampSampleRate(AudioTimeStamp ts, double sampleRate) initWithAudioTimeStamp:sampleRate:
AVAudioTime	initWithHostTime(long hostTime) initWithHostTime:
AVAudioTime	initWithHostTimeSampleTimeAtRate(long hostTime, long sampleTime, double sampleRate) initWithHostTime:sampleTime:atRate:
AVAudioTime	initWithSampleTimeAtRate(long sampleTime, double sampleRate) initWithSampleTime:atRate:
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)
boolean	isHostTimeValid() [@property] hostTimeValid
boolean	isSampleTimeValid() [@property] sampleTimeValid
static boolean	isSubclassOfClass(org.moe.natj.objc.Class aClass)
static NSSet<java.lang.String>	keyPathsForValuesAffectingValueForKey(java.lang.String key)
static AVAudioTime	new_objc()
static boolean	resolveClassMethod(org.moe.natj.objc.SEL sel)
static boolean	resolveInstanceMethod(org.moe.natj.objc.SEL sel)
double	sampleRate() [@property] sampleRate
long	sampleTime() [@property] sampleTime
static double	secondsForHostTime(long hostTime) secondsForHostTime:
static void	setVersion_static(long aVersion)
static org.moe.natj.objc.Class	superclass_static()
static AVAudioTime	timeWithAudioTimeStampSampleRate(AudioTimeStamp ts, double sampleRate) timeWithAudioTimeStamp:sampleRate:
static AVAudioTime	timeWithHostTime(long hostTime) timeWithHostTime:
static AVAudioTime	timeWithHostTimeSampleTimeAtRate(long hostTime, long sampleTime, double sampleRate) timeWithHostTime:sampleTime:atRate:
static AVAudioTime	timeWithSampleTimeAtRate(long sampleTime, double sampleRate) timeWithSampleTime:atRate:
static long	version_static()

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

AVAudioTime

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

Method Detail

accessInstanceVariablesDirectly

public static boolean accessInstanceVariablesDirectly()

alloc

public static AVAudioTime alloc()

allocWithZone

public static AVAudioTime allocWithZone(org.moe.natj.general.ptr.VoidPtr zone)

audioTimeStamp

public AudioTimeStamp audioTimeStamp()

[@property] audioTimeStamp

The time expressed as an AudioTimeStamp structure.

This may be useful for compatibility with lower-level CoreAudio and AudioToolbox API's.

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()

extrapolateTimeFromAnchor

public AVAudioTime extrapolateTimeFromAnchor(AVAudioTime anchorTime)

extrapolateTimeFromAnchor:

Converts between host and sample time.

If anchorTime is an AVAudioTime where both host time and sample time are valid, and self is another timestamp where only one of the two is valid, this method returns a new AVAudioTime copied from self and where any additional valid fields provided by the anchor are also valid.

Note that the anchorTime must have both host and sample time valid, and self must have sample rate and at least one of host or sample time valid. Otherwise this method returns nil.

 // time0 has a valid audio sample representation, but no host time representation.
 AVAudioTime *time0 = [AVAudioTime timeWithSampleTime: 0.0 atRate: 44100.0];
 // anchor has a valid host time representation and sample time representation.
 AVAudioTime *anchor = [player playerTimeForNodeTime: player.lastRenderTime];
 // fill in valid host time representation
 AVAudioTime *fullTime0 = [time0 extrapolateTimeFromAnchor: anchor];
 

Parameters:

anchorTime - An AVAudioTime with a more complete AudioTimeStamp than that of the receiver (self).

Returns:

the extrapolated time

hash_static

public static long hash_static()

hostTime

public long hostTime()

[@property] hostTime

The host time.

hostTimeForSeconds

public static long hostTimeForSeconds(double seconds)

hostTimeForSeconds:

Convert seconds to host time.

init

public AVAudioTime init()

Overrides:

init in class NSObject

initWithAudioTimeStampSampleRate

public AVAudioTime initWithAudioTimeStampSampleRate(AudioTimeStamp ts,
                                                    double sampleRate)

initWithAudioTimeStamp:sampleRate:

initWithHostTime

public AVAudioTime initWithHostTime(long hostTime)

initWithHostTime:

initWithHostTimeSampleTimeAtRate

public AVAudioTime initWithHostTimeSampleTimeAtRate(long hostTime,
                                                    long sampleTime,
                                                    double sampleRate)

initWithHostTime:sampleTime:atRate:

initWithSampleTimeAtRate

public AVAudioTime initWithSampleTimeAtRate(long sampleTime,
                                            double sampleRate)

initWithSampleTime:atRate:

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)

isHostTimeValid

public boolean isHostTimeValid()

[@property] hostTimeValid

Whether the hostTime property is valid.

isSampleTimeValid

public boolean isSampleTimeValid()

[@property] sampleTimeValid

Whether the sampleTime and sampleRate properties are valid.

isSubclassOfClass

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

keyPathsForValuesAffectingValueForKey

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

new_objc

public static AVAudioTime new_objc()

resolveClassMethod

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

resolveInstanceMethod

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

sampleRate

public double sampleRate()

[@property] sampleRate

The sample rate at which sampleTime is being expressed.

sampleTime

public long sampleTime()

[@property] sampleTime

The time as a number of audio samples, as tracked by the current audio device.

secondsForHostTime

public static double secondsForHostTime(long hostTime)

secondsForHostTime:

Convert host time to seconds.

setVersion_static

public static void setVersion_static(long aVersion)

superclass_static

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

timeWithAudioTimeStampSampleRate

public static AVAudioTime timeWithAudioTimeStampSampleRate(AudioTimeStamp ts,
                                                           double sampleRate)

timeWithAudioTimeStamp:sampleRate:

timeWithHostTime

public static AVAudioTime timeWithHostTime(long hostTime)

timeWithHostTime:

timeWithHostTimeSampleTimeAtRate

public static AVAudioTime timeWithHostTimeSampleTimeAtRate(long hostTime,
                                                           long sampleTime,
                                                           double sampleRate)

timeWithHostTime:sampleTime:atRate:

timeWithSampleTimeAtRate

public static AVAudioTime timeWithSampleTimeAtRate(long sampleTime,
                                                   double sampleRate)

timeWithSampleTime:atRate:

version_static

public static long version_static()