AVFoundation macOS xcode14.0 beta4

#AVFoundation.framework https://github.com/xamarin/xamarin-macios/pull/16408

diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureDevice.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureDevice.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureDevice.h	2022-06-30 21:54:34.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureDevice.h	2022-07-22 10:06:28.000000000 -0400
@@ -603,7 +603,7 @@
 
     Applications that adopt this API should always key-value observe this property and update their AVCaptureSession’s input device to reflect changes to the systemPreferredCamera. The application can still offer users the ability to pick a camera by calling -setUserPreferredCamera:, which will cause the systemPreferredCamera API to put the user’s choice first until either another Apple-preferred device becomes available or the machine is rebooted (after which it reverts to its original behavior of returning the internally determined best camera to use).
 
-    If the application wishes to offer users a fully manual camera selection mode in addition to automatic camera selection, it is recommended to call setUserPeferredCamera: each time the user makes a camera selection, but ignore key-value observer updates to systemPreferredCamera while in manual selection mode.
+    If the application wishes to offer users a fully manual camera selection mode in addition to automatic camera selection, it is recommended to call setUserPreferredCamera: each time the user makes a camera selection, but ignore key-value observer updates to systemPreferredCamera while in manual selection mode.
 */
 @property(class, readonly, nullable) AVCaptureDevice *systemPreferredCamera API_AVAILABLE(macos(13.0), macCatalyst(16.0)) API_UNAVAILABLE(ios, tvos, watchos);
 
diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureSession.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureSession.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureSession.h	2022-06-30 21:54:30.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVCaptureSession.h	2022-07-25 15:33:43.000000000 -0400
@@ -422,6 +422,8 @@
  @discussion
     This property can be used to determine whether multitaskingCameraAccessEnabled may be set to YES. When this property changes from YES to NO, multitaskingCameraAccessEnabled also reverts to NO.
  
+    This property returns true for iPad Pro (4th generation), iPad Pro (5th generation) and iPad Air (5th generation).
+ 
     This property is key-value observable.
  */
 @property(nonatomic, readonly, getter=isMultitaskingCameraAccessSupported) BOOL multitaskingCameraAccessSupported API_AVAILABLE(ios(16.0)) API_UNAVAILABLE(macos, macCatalyst, tvos, watchos);
diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMetadataItem.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMetadataItem.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMetadataItem.h	2022-06-30 22:10:30.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMetadataItem.h	2022-07-22 10:06:26.000000000 -0400
@@ -30,7 +30,7 @@
 	
 	Note that arrays of AVMetadataItems vended by AVAsset and other classes are "lazy", similar to array-based keys that support key-value observing, meaning that you can obtain objects from those arrays without incurring overhead for items you don't ultimately inspect.
  
-	AVMetadataItem conforms to NSMutableCopying, but for some "lazy" instances of AVMetadataItem, creating a mutable copy can cause properties to load synchrounsly.  This can cause the calling thread to block while synchronous I/O is performed.  To avoid the possiblity of blocking, use the methods of the AVAsynchronousKeyValueLoading protocol to asynchronously load the `value` and `extraAttributes` properties prior to making a mutable copy.
+	AVMetadataItem conforms to NSMutableCopying, but for some "lazy" instances of AVMetadataItem, creating a mutable copy can cause properties to load synchronously.  This can cause the calling thread to block while synchronous I/O is performed.  To avoid the possiblity of blocking, which should be avoided on the main thread or when running on one of Swift's concurrency threads, ensure that the `value` and `extraAttributes` properties are loaded prior to making a mutable copy.  This can be done using the methods of AVAsynchronousKeyValueLoading, either to synchronously check whether loading has already occurred or to asynchronously load the property values.
 
 	You can filter arrays of AVMetadataItems by locale or by key and keySpace via the category AVMetadataItemArrayFiltering defined below.
 */
diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMovie.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMovie.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMovie.h	2022-06-30 21:54:31.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVMovie.h	2022-07-25 15:33:44.000000000 -0400
@@ -32,6 +32,9 @@
 			 AVPlayerItem *playerItemForSnapshotOfMovie = [[AVPlayerItem alloc] initWithAsset:immutableSnapshotOfMyMovie]; 
  
  					When performing media insertions, AVMutableMovie interleaves the media data from the tracks in the source asset in order to create movie files that are optimized for playback. It's possible, however, that performing a series of media insertions may result in a movie file that is not optimally interleaved. You can create a well-interleaved, self-contained, fast-start movie file from an instance of AVMutableMovie by passing that instance to an AVAssetExportSession using the export preset AVAssetExportPresetPassthrough and setting the setShouldOptimizeForNetworkUse property to YES.
+
+					AVMovie conforms to NSMutableCopying, but creating a mutable copy of a movie can cause its properties to be loaded synchronously.  This can cause the calling thread to block while synchronous I/O is performed.  To avoid the worst side-effects of blocking, such as user interface hangs, avoid making a mutable copy from the main thread or from a thread owned by Swift's concurrency thread pool.
+
 */
 
 // Keys for options dictionary for use with various AVMovie initialization methods
diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayer.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayer.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayer.h	2022-06-30 22:10:32.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayer.h	2022-07-25 15:36:43.000000000 -0400
@@ -24,10 +24,6 @@
 
 	  To allow clients to add and remove their objects as key-value observers safely, AVPlayer serializes notifications of
 	  changes that occur dynamically during playback on a dispatch queue. By default, this queue is the main queue. See dispatch_get_main_queue().
-	  
-	  To ensure safe access to AVPlayer's nonatomic properties while dynamic changes in playback state may be reported, clients must
-	  serialize their access with the receiver's notification queue. In the common case, such serialization is naturally achieved
-	  by invoking AVPlayer's various methods on the main thread or queue.
 */
 
 #import <AVFoundation/AVBase.h>
@@ -120,7 +116,7 @@
 	instance needs to be created in its place. When this happens, clients can check the value of the error property to
 	determine the nature of the failure. This property is key value observable.
  */
-@property (nonatomic, readonly) AVPlayerStatus status;
+@property (readonly) AVPlayerStatus status;
 
 /*!
  @property error
@@ -131,7 +127,7 @@
 	The value of this property is an NSError that describes what caused the receiver to no longer be able to play items.
 	If the receiver's status is not AVPlayerStatusFailed, the value of this property is nil.
  */
-@property (nonatomic, readonly, nullable) NSError *error;
+@property (readonly, nullable) NSError *error;
 
 @end
 
@@ -177,7 +173,7 @@
  
  Before macOS 13, iOS 16, tvOS 16, and watchOS 9, this property must be accessed on the main thread/queue.
  */
-@property (nonatomic) float rate
+@property float rate
 #if ! AVF_DEPLOYING_TO_2022_RELEASES_AND_LATER
 NS_SWIFT_UI_ACTOR
 #endif
@@ -249,7 +245,7 @@
  
 When automaticallyWaitsToMinimizeStalling is YES, absent intervention in the form of invocations of -setRate: or -pause or, on iOS, an interruption that requires user intervention before playback can resume, the value of the property timeControlStatus automatically changes between AVPlayerTimeControlStatusPlaying and AVPlayerTimeControlStatusWaitingToPlayAtSpecifiedRate depending on whether sufficient media data is available to continue playback. This property is key value observable.
 */
-@property (nonatomic, readonly) AVPlayerTimeControlStatus timeControlStatus API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0));
+@property (readonly) AVPlayerTimeControlStatus timeControlStatus API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0));
 
 /*!
  @typedef AVPlayerWaitingReason
@@ -301,7 +297,7 @@
     Possible values are AVPlayerWaitingWithNoItemToPlayReason, AVPlayerWaitingWhileEvaluatingBufferingRateReason, and AVPlayerWaitingToMinimizeStallsReason.
 */
 
-@property (nonatomic, readonly, nullable) AVPlayerWaitingReason reasonForWaitingToPlay API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0));
+@property (readonly, nullable) AVPlayerWaitingReason reasonForWaitingToPlay API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0));
 
 
 /*!
@@ -325,7 +321,7 @@
 @interface AVPlayer (AVPlayerItemControl)
 
 /* indicates the current item of the player */
-@property (nonatomic, readonly, nullable) AVPlayerItem *currentItem;
+@property (readonly, nullable) AVPlayerItem *currentItem;
 
 /*!
 	@method			replaceCurrentItemWithPlayerItem:
@@ -720,7 +716,7 @@
 @property BOOL allowsExternalPlayback API_AVAILABLE(macos(10.11), ios(6.0), tvos(9.0)) API_UNAVAILABLE(watchos);
 
 /* Indicates whether the player is currently playing video in "external playback" mode. */
-@property (nonatomic, readonly, getter=isExternalPlaybackActive) BOOL externalPlaybackActive API_AVAILABLE(macos(10.11), ios(6.0), tvos(9.0)) API_UNAVAILABLE(watchos);
+@property (readonly, getter=isExternalPlaybackActive) BOOL externalPlaybackActive API_AVAILABLE(macos(10.11), ios(6.0), tvos(9.0)) API_UNAVAILABLE(watchos);
 
 /* Indicates whether the player should automatically switch to "external playback" mode while the "external 
 	screen" mode is active in order to play video content and switching back to "external screen" mode as soon 
@@ -743,7 +739,7 @@
 
 /* Indicates whether the player is currently playing video via AirPlay. 
 	This property is deprecated. Use AVPlayer's -externalPlaybackActive instead.*/
-@property (nonatomic, readonly, getter=isAirPlayVideoActive) BOOL airPlayVideoActive API_DEPRECATED_WITH_REPLACEMENT("externalPlaybackActive", ios(5.0, 6.0), tvos(9.0, 9.0)) API_UNAVAILABLE(watchos) API_UNAVAILABLE(macos);
+@property (readonly, getter=isAirPlayVideoActive) BOOL airPlayVideoActive API_DEPRECATED_WITH_REPLACEMENT("externalPlaybackActive", ios(5.0, 6.0), tvos(9.0, 9.0)) API_UNAVAILABLE(watchos) API_UNAVAILABLE(macos);
 
 /* Indicates whether the player should automatically switch to AirPlay Video while AirPlay Screen is active in order to play video content, switching back to AirPlay Screen as soon as playback is done. 
 	The default value is NO. Has no effect if allowsAirPlayVideo is NO.
@@ -777,7 +773,7 @@
 		current item. These requirements are inherent to the content itself and cannot be externally specified.
 		If the current item does not require external protection, the value of this property will be NO.
  */
-@property (nonatomic, readonly) BOOL outputObscuredDueToInsufficientExternalProtection API_AVAILABLE(macos(10.12), ios(6.0), tvos(9.0)) API_UNAVAILABLE(watchos);
+@property (readonly) BOOL outputObscuredDueToInsufficientExternalProtection API_AVAILABLE(macos(10.12), ios(6.0), tvos(9.0)) API_UNAVAILABLE(watchos);
 
 @end
 
@@ -807,7 +803,7 @@
 	 @discussion
 		 This property indicates all of the HDR modes that the device can play.  Each value indicates that an appropriate HDR display is available for the specified HDR mode.  Additionally, the device must be capable of playing the specified HDR type.  This property does not indicate whether video contains HDR content, whether HDR video is currently playing, or whether video is playing on an HDR display.
 */
-@property (class, nonatomic, readonly) AVPlayerHDRMode availableHDRModes API_AVAILABLE(ios(11.2), tvos(11.2)) API_UNAVAILABLE(macos) API_UNAVAILABLE(watchos);
+@property (class, readonly) AVPlayerHDRMode availableHDRModes API_AVAILABLE(ios(11.2), tvos(11.2)) API_UNAVAILABLE(macos) API_UNAVAILABLE(watchos);
 
 /*!
 	 @constant		AVPlayerAvailableHDRModesDidChangeNotification
@@ -826,7 +822,7 @@
  @discussion
  This property is YES if an HDR display is available and the device is capable of playing HDR content from an appropriate AVAsset, NO otherwise.  This property does not indicate whether video contains HDR content, whether HDR video is currently playing, or whether video is playing on an HDR display.  This property is not KVO observable.
  */
-@property (class, nonatomic, readonly) BOOL eligibleForHDRPlayback API_AVAILABLE(macos(10.15), ios(13.4), tvos(13.4)) API_UNAVAILABLE(watchos);
+@property (class, readonly) BOOL eligibleForHDRPlayback API_AVAILABLE(macos(10.15), ios(13.4), tvos(13.4)) API_UNAVAILABLE(watchos);
 
 /*!
  @constant		eligibleForHDRPlaybackDidChangeNotification
diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItem.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItem.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItem.h	2022-06-30 09:31:35.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItem.h	2022-07-22 10:05:48.000000000 -0400
@@ -4,7 +4,7 @@
 
 	Framework:  AVFoundation
  
-	Copyright 2010-2021 Apple Inc. All rights reserved.
+	Copyright 2010-2022 Apple Inc. All rights reserved.
 
 */
 
@@ -23,10 +23,6 @@
 	  To allow clients to add and remove their objects as key-value observers safely, AVPlayerItem serializes notifications of
 	  changes that occur dynamically during playback on the same dispatch queue on which notifications of playback state changes
 	  are serialized by its associated AVPlayer. By default, this queue is the main queue. See dispatch_get_main_queue().
-	  
-	  To ensure safe access to AVPlayerItem's nonatomic properties while dynamic changes in playback state may be reported, clients must
-	  serialize their access with the associated AVPlayer's notification queue. In the common case, such serialization is naturally
-	  achieved by invoking AVPlayerItem's various methods on the main thread or queue.
 */
 
 #import <AVFoundation/AVBase.h>
@@ -312,7 +308,7 @@
  @abstract		A recommended value for configuredTimeOffsetFromLive, based on observed network conditions.
  @discussion	For non-live assets this value is kCMTimeInvalid.
  */
-@property (nonatomic, readonly) CMTime recommendedTimeOffsetFromLive API_AVAILABLE(macos(10.15), ios(13.0), tvos(13.0), watchos(6.0));
+@property (readonly) CMTime recommendedTimeOffsetFromLive API_AVAILABLE(macos(10.15), ios(13.0), tvos(13.0), watchos(6.0));
 
 /*!
  @property		automaticallyPreservesTimeOffsetFromLive
@@ -465,7 +461,7 @@
  @abstract		The item's timebase.
  @discussion 
    You can examine the timebase to discover the relationship between the item's time and the source clock used for drift synchronization.
-   This timebase is read-only; you cannot set its time or rate to affect playback.  The value of this property may change during playback.
+   This timebase is read-only; you cannot set its time or rate to affect playback.
  */
 @property (nonatomic, readonly, nullable) __attribute__((NSObject)) CMTimebaseRef timebase API_AVAILABLE(macos(10.8), ios(6.0), tvos(9.0), watchos(1.0));
 
@@ -496,8 +492,7 @@
  @property customVideoCompositor
  @abstract Indicates the custom video compositor instance.
  @discussion
- 	This property is nil if there is no video compositor, or if the internal video compositor is in use. This reference can be used to provide
-	extra context to the custom video compositor instance if required.
+ 	This property is nil if there is no video compositor, or if the internal video compositor is in use. This reference can be used to provide extra context to the custom video compositor instance if required.  The value of this property can change as a result of setting the `videoComposition` property.
  
 	Before macOS 13, iOS 16, tvOS 16, and watchOS 9, this property must be accessed on the main thread/queue.
  */
@@ -781,7 +776,7 @@
   @property		currentMediaSelection
   @abstract		Provides an instance of AVMediaSelection carrying current selections for each of the receiver's media selection groups.
 */
-@property (nonatomic, readonly) AVMediaSelection *currentMediaSelection API_AVAILABLE(macos(10.11), ios(9.0), tvos(9.0), watchos(2.0));
+@property (readonly) AVMediaSelection *currentMediaSelection API_AVAILABLE(macos(10.11), ios(9.0), tvos(9.0), watchos(2.0));
 
 @end
 
diff -ruN /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItemTrack.h /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItemTrack.h
--- /Applications/Xcode_14.0.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItemTrack.h	2022-06-30 19:26:55.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVPlayerItemTrack.h	2022-07-22 10:05:47.000000000 -0400
@@ -4,7 +4,7 @@
 
 	Framework:  AVFoundation
  
-	Copyright 2010-2021 Apple Inc. All rights reserved.
+	Copyright 2010-2022 Apple Inc. All rights reserved.
 
 */
 
@@ -26,10 +26,6 @@
 	@discussion
 		Note that inspection of assets tracks is provided by AVAssetTrack.
 		This class is intended to represent presentation state for a track of an asset that's played by an AVPlayer and AVPlayerItem.
-
-		To ensure safe access to AVPlayerItemTrack's nonatomic properties while dynamic changes in playback state may be reported,
-		clients must serialize their access with the associated AVPlayer's notification queue. In the common case, such serialization
-		is naturally achieved by invoking AVPlayerItemTrack's various methods on the main thread or queue.
 */
 API_AVAILABLE(macos(10.7), ios(4.0), tvos(9.0), watchos(1.0))
 @interface AVPlayerItemTrack : NSObject
@@ -65,7 +61,7 @@
 
  Before macOS 13, iOS 16, tvOS 16, and watchOS 9, this property must be accessed on the main thread/queue.
 */
-@property (nonatomic, readonly) float currentVideoFrameRate
+@property (readonly) float currentVideoFrameRate
 #if ! AVF_DEPLOYING_TO_2022_RELEASES_AND_LATER
 NS_SWIFT_UI_ACTOR
 #endif