AVFoundation tvOS 11.4 to 12.0 API Differences

	Declaration
From	@property (readonly, nonnull) NSArray<NSString > availableCategories
To	@property (readonly, nonnull) NSArray<AVAudioSessionCategory> *availableCategories

Modified -[AVAudioSession setCategory:error:]

	Declaration
From	- (BOOL)setCategory:(nonnull NSString )category error:(nullable NSError _Nullable *)outError
To	- (BOOL)setCategory:(nonnull AVAudioSessionCategory)category error:(nullable NSError * _Nullable *)outError

Modified -[AVAudioSession setCategory:withOptions:error:]

	Declaration
From	- (BOOL)setCategory:(nonnull NSString )category withOptions:(AVAudioSessionCategoryOptions)options error:(nullable NSError _Nullable *)outError
To	- (BOOL)setCategory:(nonnull AVAudioSessionCategory)category withOptions:(AVAudioSessionCategoryOptions)options error:(nullable NSError * _Nullable *)outError

Modified -[AVAudioSession setCategory:mode:options:error:]

	Declaration
From	- (BOOL)setCategory:(nonnull NSString )category mode:(nonnull NSString )mode options:(AVAudioSessionCategoryOptions)options error:(nullable NSError * _Nullable *)outError
To	- (BOOL)setCategory:(nonnull AVAudioSessionCategory)category mode:(nonnull AVAudioSessionMode)mode options:(AVAudioSessionCategoryOptions)options error:(nullable NSError * _Nullable *)outError

Modified -[AVAudioSession setCategory:mode:routeSharingPolicy:options:error:]

	Declaration
From	- (BOOL)setCategory:(nonnull NSString )category mode:(nonnull NSString )mode routeSharingPolicy:(AVAudioSessionRouteSharingPolicy)policy options:(AVAudioSessionCategoryOptions)options error:(nullable NSError * _Nullable *)outError
To	- (BOOL)setCategory:(nonnull AVAudioSessionCategory)category mode:(nonnull AVAudioSessionMode)mode routeSharingPolicy:(AVAudioSessionRouteSharingPolicy)policy options:(AVAudioSessionCategoryOptions)options error:(nullable NSError * _Nullable *)outError

Modified AVAudioSession.category

	Declaration
From	@property (readonly, nonnull) NSString *category
To	@property (readonly, nonnull) AVAudioSessionCategory category

Modified AVAudioSession.availableModes

	Declaration
From	@property (readonly, nonnull) NSArray<NSString > availableModes
To	@property (readonly, nonnull) NSArray<AVAudioSessionMode> *availableModes

Modified -[AVAudioSession setMode:error:]

	Declaration
From	- (BOOL)setMode:(nonnull NSString )mode error:(nullable NSError _Nullable *)outError
To	- (BOOL)setMode:(nonnull AVAudioSessionMode)mode error:(nullable NSError * _Nullable *)outError

Modified AVAudioSession.mode

	Declaration
From	@property (readonly, nonnull) NSString *mode
To	@property (readonly, nonnull) AVAudioSessionMode mode

Modified AVAudioSessionInterruptionNotification

	Declaration
From	NSString *const _Nonnull AVAudioSessionInterruptionNotification
To	const NSNotificationName _Nonnull AVAudioSessionInterruptionNotification

Modified AVAudioSessionRouteChangeNotification

	Declaration
From	NSString *const _Nonnull AVAudioSessionRouteChangeNotification
To	const NSNotificationName _Nonnull AVAudioSessionRouteChangeNotification

Modified AVAudioSessionMediaServicesWereLostNotification

	Declaration
From	NSString *const _Nonnull AVAudioSessionMediaServicesWereLostNotification
To	const NSNotificationName _Nonnull AVAudioSessionMediaServicesWereLostNotification

Modified AVAudioSessionMediaServicesWereResetNotification

	Declaration
From	NSString *const _Nonnull AVAudioSessionMediaServicesWereResetNotification
To	const NSNotificationName _Nonnull AVAudioSessionMediaServicesWereResetNotification

Modified AVAudioSessionSilenceSecondaryAudioHintNotification

	Declaration
From	NSString *const _Nonnull AVAudioSessionSilenceSecondaryAudioHintNotification
To	const NSNotificationName _Nonnull AVAudioSessionSilenceSecondaryAudioHintNotification

Modified AVAudioSessionCategoryAmbient

	Declaration
From	NSString *const _Nonnull AVAudioSessionCategoryAmbient
To	const AVAudioSessionCategory _Nonnull AVAudioSessionCategoryAmbient

Modified AVAudioSessionCategorySoloAmbient

	Declaration
From	NSString *const _Nonnull AVAudioSessionCategorySoloAmbient
To	const AVAudioSessionCategory _Nonnull AVAudioSessionCategorySoloAmbient

Modified AVAudioSessionCategoryPlayback

	Declaration
From	NSString *const _Nonnull AVAudioSessionCategoryPlayback
To	const AVAudioSessionCategory _Nonnull AVAudioSessionCategoryPlayback

Modified AVAudioSessionCategoryRecord

	Declaration
From	NSString *const _Nonnull AVAudioSessionCategoryRecord
To	const AVAudioSessionCategory _Nonnull AVAudioSessionCategoryRecord

Modified AVAudioSessionCategoryPlayAndRecord

	Declaration
From	NSString *const _Nonnull AVAudioSessionCategoryPlayAndRecord
To	const AVAudioSessionCategory _Nonnull AVAudioSessionCategoryPlayAndRecord

Modified AVAudioSessionCategoryMultiRoute

	Declaration
From	NSString *const _Nonnull AVAudioSessionCategoryMultiRoute
To	const AVAudioSessionCategory _Nonnull AVAudioSessionCategoryMultiRoute

Modified AVAudioSessionModeDefault

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeDefault
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeDefault

Modified AVAudioSessionModeVoiceChat

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeVoiceChat
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeVoiceChat

Modified AVAudioSessionModeGameChat

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeGameChat
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeGameChat

Modified AVAudioSessionModeVideoRecording

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeVideoRecording
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeVideoRecording

Modified AVAudioSessionModeMeasurement

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeMeasurement
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeMeasurement

Modified AVAudioSessionModeMoviePlayback

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeMoviePlayback
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeMoviePlayback

Modified AVAudioSessionModeVideoChat

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeVideoChat
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeVideoChat

Modified AVAudioSessionModeSpokenAudio

	Declaration
From	NSString *const _Nonnull AVAudioSessionModeSpokenAudio
To	const AVAudioSessionMode _Nonnull AVAudioSessionModeSpokenAudio

Modified AVAudioSessionPortLineIn

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortLineIn
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortLineIn

Modified AVAudioSessionPortBuiltInMic

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortBuiltInMic
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortBuiltInMic

Modified AVAudioSessionPortHeadsetMic

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortHeadsetMic
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortHeadsetMic

Modified AVAudioSessionPortLineOut

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortLineOut
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortLineOut

Modified AVAudioSessionPortHeadphones

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortHeadphones
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortHeadphones

Modified AVAudioSessionPortBluetoothA2DP

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortBluetoothA2DP
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortBluetoothA2DP

Modified AVAudioSessionPortBuiltInReceiver

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortBuiltInReceiver
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortBuiltInReceiver

Modified AVAudioSessionPortBuiltInSpeaker

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortBuiltInSpeaker
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortBuiltInSpeaker

Modified AVAudioSessionPortHDMI

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortHDMI
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortHDMI

Modified AVAudioSessionPortAirPlay

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortAirPlay
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortAirPlay

Modified AVAudioSessionPortBluetoothLE

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortBluetoothLE
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortBluetoothLE

Modified AVAudioSessionPortBluetoothHFP

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortBluetoothHFP
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortBluetoothHFP

Modified AVAudioSessionPortUSBAudio

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortUSBAudio
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortUSBAudio

Modified AVAudioSessionPortCarAudio

	Declaration
From	NSString *const _Nonnull AVAudioSessionPortCarAudio
To	const AVAudioSessionPort _Nonnull AVAudioSessionPortCarAudio

Modified AVAudioSessionLocationUpper

	Declaration
From	NSString *const _Nonnull AVAudioSessionLocationUpper
To	const AVAudioSessionLocation _Nonnull AVAudioSessionLocationUpper

Modified AVAudioSessionLocationLower

	Declaration
From	NSString *const _Nonnull AVAudioSessionLocationLower
To	const AVAudioSessionLocation _Nonnull AVAudioSessionLocationLower

Modified AVAudioSessionOrientationTop

	Declaration
From	NSString *const _Nonnull AVAudioSessionOrientationTop
To	const AVAudioSessionLocation _Nonnull AVAudioSessionOrientationTop

Modified AVAudioSessionOrientationBottom

	Declaration
From	NSString *const _Nonnull AVAudioSessionOrientationBottom
To	const AVAudioSessionLocation _Nonnull AVAudioSessionOrientationBottom

Modified AVAudioSessionOrientationFront

	Declaration
From	NSString *const _Nonnull AVAudioSessionOrientationFront
To	const AVAudioSessionLocation _Nonnull AVAudioSessionOrientationFront

Modified AVAudioSessionOrientationBack

	Declaration
From	NSString *const _Nonnull AVAudioSessionOrientationBack
To	const AVAudioSessionLocation _Nonnull AVAudioSessionOrientationBack

Modified AVAudioSessionOrientationLeft

	Declaration
From	NSString *const _Nonnull AVAudioSessionOrientationLeft
To	const AVAudioSessionLocation _Nonnull AVAudioSessionOrientationLeft

Modified AVAudioSessionOrientationRight

	Declaration
From	NSString *const _Nonnull AVAudioSessionOrientationRight
To	const AVAudioSessionLocation _Nonnull AVAudioSessionOrientationRight

Modified AVAudioSessionPolarPatternOmnidirectional

	Declaration
From	NSString *const _Nonnull AVAudioSessionPolarPatternOmnidirectional
To	const AVAudioSessionLocation _Nonnull AVAudioSessionPolarPatternOmnidirectional

Modified AVAudioSessionPolarPatternCardioid

	Declaration
From	NSString *const _Nonnull AVAudioSessionPolarPatternCardioid
To	const AVAudioSessionLocation _Nonnull AVAudioSessionPolarPatternCardioid

Modified AVAudioSessionPolarPatternSubcardioid

	Declaration
From	NSString *const _Nonnull AVAudioSessionPolarPatternSubcardioid
To	const AVAudioSessionLocation _Nonnull AVAudioSessionPolarPatternSubcardioid

Modified AVAudioSessionPortDescription.portType

	Declaration
From	@property (readonly, nonnull) NSString *portType
To	@property (readonly, nonnull) AVAudioSessionPort portType

Modified AVAudioSessionDataSourceDescription.location

	Declaration
From	@property (readonly, nullable) NSString *location
To	@property (readonly, nullable) AVAudioSessionLocation location

Modified AVAudioSessionDataSourceDescription.orientation

	Declaration
From	@property (readonly, nullable) NSString *orientation
To	@property (readonly, nullable) AVAudioSessionOrientation orientation

Modified AVAudioSessionDataSourceDescription.supportedPolarPatterns

	Declaration
From	@property (readonly, nullable) NSArray<NSString > supportedPolarPatterns
To	@property (readonly, nullable) NSArray<AVAudioSessionPolarPattern> *supportedPolarPatterns

Modified AVAudioSessionDataSourceDescription.selectedPolarPattern

	Declaration
From	@property (readonly, nullable) NSString *selectedPolarPattern
To	@property (readonly, nullable) AVAudioSessionPolarPattern selectedPolarPattern

Modified AVAudioSessionDataSourceDescription.preferredPolarPattern

	Declaration
From	@property (readonly, nullable) NSString *preferredPolarPattern
To	@property (readonly, nullable) AVAudioSessionPolarPattern preferredPolarPattern

Modified -[AVAudioSessionDataSourceDescription setPreferredPolarPattern:error:]

	Declaration
From	- (BOOL)setPreferredPolarPattern:(nullable NSString )pattern error:(nullable NSError _Nullable *)outError
To	- (BOOL)setPreferredPolarPattern:(nullable AVAudioSessionPolarPattern)pattern error:(nullable NSError * _Nullable *)outError

Modified AVAudioSessionErrorInsufficientPriority

	Availability	Replacement
From	Available	none
To	Deprecated	AVAudioSessionErrorCodeInsufficientPriority

AVAsset.h

Removed AVFragmentedAsset (AVFragmentedAssetTrackInspection)

Added AVAssetContainsFragmentsDidChangeNotification

Added AVAssetWasDefragmentedNotification

Added AVFragmentMinding.associatedWithFragmentMinder

Added AVFragmentedAsset

Added +[AVFragmentedAsset fragmentedAssetWithURL:options:]

Added AVFragmentedAsset.tracks

Added AVFragmentedAssetMinder

Added +[AVFragmentedAssetMinder fragmentedAssetMinderWithAsset:mindingInterval:]

Added -[AVFragmentedAssetMinder initWithAsset:mindingInterval:]

Added AVFragmentedAssetMinder.mindingInterval

Added AVFragmentedAssetMinder.assets

Added -[AVFragmentedAssetMinder addFragmentedAsset:]

Added -[AVFragmentedAssetMinder removeFragmentedAsset:]

AVAssetDownloadTask.h

Removed AVAssetDownloadTaskMinimumRequiredMediaBitrateKey

Removed AVAssetDownloadTaskMediaSelectionKey

AVAssetReaderOutput.h

Modified AVAssetReaderOutput.mediaType

	Declaration
From	@property (nonatomic, readonly, nonnull) NSString *mediaType
To	@property (nonatomic, readonly, nonnull) AVMediaType mediaType

AVAssetResourceLoader.h

Added AVAssetResourceLoadingRequestor

Added AVAssetResourceLoadingRequestor.providesExpiredSessionReports

Added AVAssetResourceLoadingRequest.requestor

AVAssetTrack.h

Added AVFragmentedAssetTrack

AVCameraCalibrationData.h

Modified AVCameraCalibrationData.lensDistortionLookupTable

	Declaration
From	@property (nonatomic, readonly, nonnull) NSData *lensDistortionLookupTable
To	@property (nonatomic, readonly, nullable) NSData *lensDistortionLookupTable

Modified AVCameraCalibrationData.inverseLensDistortionLookupTable

	Declaration
From	@property (nonatomic, readonly, nonnull) NSData *inverseLensDistortionLookupTable
To	@property (nonatomic, readonly, nullable) NSData *inverseLensDistortionLookupTable

AVCaptureDevice.h

Added AVCaptureDevice.deviceType

Added +[AVCaptureDevice defaultDeviceWithDeviceType:mediaType:position:]

Added AVCaptureLensPositionCurrent

Added AVCaptureDevice.activeDepthDataMinFrameDuration

Added AVCaptureDeviceFormat (AVCaptureDeviceFormatDepthDataAdditions)

AVCapturePhotoOutput.h

Modified -[AVCapturePhoto fileDataRepresentationWithReplacementMetadata:replacementEmbeddedThumbnailPhotoFormat:replacementEmbeddedThumbnailPixelBuffer:replacementDepthData:]

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use fileDataRepresentationWithCustomizer: instead

AVCompositionTrack.h

Added -[AVMutableCompositionTrack addTrackAssociationToTrack:type:]

Added -[AVMutableCompositionTrack removeTrackAssociationToTrack:type:]

AVContentKeySession.h

Added -[AVContentKeySessionDelegate contentKeySession:contentKeyRequestDidSucceed:]

Added -[AVContentKeySessionDelegate contentKeySessionDidGenerateExpiredSessionReport:]

Added AVPersistableContentKeyRequest

Added -[AVPersistableContentKeyRequest persistableContentKeyFromKeyVendorResponse:options:error:]

Modified -[AVContentKeyRequest makeStreamingContentKeyRequestDataForApp:contentIdentifier:options:completionHandler:]

	Declaration
From	- (void)makeStreamingContentKeyRequestDataForApp:(nonnull NSData )appIdentifier contentIdentifier:(nonnull NSData )contentIdentifier options:(nullable NSDictionary<NSString ,id> )options completionHandler:(nonnull void (^)(NSData * _Nullable, NSError * _Nullable))handler
To	- (void)makeStreamingContentKeyRequestDataForApp:(nonnull NSData )appIdentifier contentIdentifier:(nullable NSData )contentIdentifier options:(nullable NSDictionary<NSString ,id> )options completionHandler:(nonnull void (^)(NSData * _Nullable, NSError * _Nullable))handler

AVError.h

Added AVErrorExternalPlaybackNotSupportedForAsset

Modified AVFoundationErrorDomain

	Declaration
From	NSString *const AVFoundationErrorDomain
To	const NSErrorDomain AVFoundationErrorDomain

AVMediaSelectionGroup.h

Modified +[AVMediaSelectionGroup mediaSelectionOptionsFromArray:withMediaCharacteristics:]

	Declaration
From	+ (nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptionsFromArray:(nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptions withMediaCharacteristics:(nonnull NSArray<NSString > )mediaCharacteristics
To	+ (nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptionsFromArray:(nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptions withMediaCharacteristics:(nonnull NSArray<AVMediaCharacteristic> *)mediaCharacteristics

Modified +[AVMediaSelectionGroup mediaSelectionOptionsFromArray:withoutMediaCharacteristics:]

	Declaration
From	+ (nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptionsFromArray:(nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptions withoutMediaCharacteristics:(nonnull NSArray<NSString > )mediaCharacteristics
To	+ (nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptionsFromArray:(nonnull NSArray<AVMediaSelectionOption > )mediaSelectionOptions withoutMediaCharacteristics:(nonnull NSArray<AVMediaCharacteristic> *)mediaCharacteristics

Modified AVMediaSelectionOption.mediaType

	Declaration
From	@property (nonatomic, readonly, nonnull) NSString *mediaType
To	@property (nonatomic, readonly, nonnull) AVMediaType mediaType

AVMetadataObject.h

Added AVMetadataMachineReadableCodeObject.descriptor

AVPlayer.h

Added AVPlayer.preventsDisplaySleepDuringVideoPlayback

AVPlayerItemTrack.h

Modified AVPlayerItemTrack.assetTrack

	Declaration
From	@property (nonatomic, readonly, nonnull) AVAssetTrack *assetTrack
To	@property (nonatomic, readonly, nullable) AVAssetTrack *assetTrack

AVPlayerMediaSelectionCriteria.h

Modified AVPlayerMediaSelectionCriteria.preferredMediaCharacteristics

	Declaration
From	@property (nonatomic, readonly, nullable) NSArray<NSString > preferredMediaCharacteristics
To	@property (nonatomic, readonly, nullable) NSArray<AVMediaCharacteristic> *preferredMediaCharacteristics

AVPortraitEffectsMatte.h

Added AVPortraitEffectsMatte

Added +[AVPortraitEffectsMatte portraitEffectsMatteFromDictionaryRepresentation:error:]

Added -[AVPortraitEffectsMatte portraitEffectsMatteByApplyingExifOrientation:]

Added -[AVPortraitEffectsMatte portraitEffectsMatteByReplacingPortraitEffectsMatteWithPixelBuffer:error:]

Added -[AVPortraitEffectsMatte dictionaryRepresentationForAuxiliaryDataType:]

Added AVPortraitEffectsMatte.pixelFormatType

Added AVPortraitEffectsMatte.mattingImage

AVSampleBufferRenderSynchronizer.h

Added AVSampleBufferRenderSynchronizerRateDidChangeNotification

Added -[AVSampleBufferRenderSynchronizer currentTime]