[VideoToolbox] Implement Xcode 16.0 beta 1-6 changes.

src/Foundation/DictionaryContainer.cs

@@ -151,6 +151,17 @@ protected DictionaryContainer (NSDictionary? dictionary)
 			return ((NSNumber) value).Int64Value;
 		}
 
+		protected ulong? GetULongValue (NSString key)
+		{
+			if (key is null)
+				throw new ArgumentNullException (nameof (key));
+
+			if (!Dictionary.TryGetValue (key, out var value))
+				return null;
+
+			return ((NSNumber) value).UInt64Value;
+		}
+
 		protected uint? GetUIntValue (NSString key)
 		{
 			if (key is null)

src/VideoToolbox/VTCompressionSession.cs

@@ -444,5 +444,33 @@ public VTStatus SetCompressionProperties (VTCompressionProperties options)
 
 			return VTSessionSetProperties (GetCheckedHandle (), options.Dictionary.Handle);
 		}
+
+#if !__WATCHOS__
+#if NET
+		[SupportedOSPlatform ("macos14.0")]
+		[SupportedOSPlatform ("ios17.0")]
+		[SupportedOSPlatform ("tvos17.0")]
+		[SupportedOSPlatform ("maccatalyst17.0")]
+#else
+		[iOS (17, 0), TV (17, 0), Mac (14, 0), NoWatch]
+#endif
+		[DllImport (Constants.VideoToolboxLibrary)]
+		extern static /* Boolean */ byte VTIsStereoMVHEVCEncodeSupported ();
+
+		/// <summary>Returns whether the current system supports stereo MV-HEVC encode.</summary>
+		/// <returns>True if the current system supports stereo MV-HEVC encode, false otherwise.</returns>
+#if NET
+		[SupportedOSPlatform ("macos14.0")]
+		[SupportedOSPlatform ("ios17.0")]
+		[SupportedOSPlatform ("tvos17.0")]
+		[SupportedOSPlatform ("maccatalyst17.0")]
+#else
+		[iOS (17, 0), TV (17, 0), Mac (14, 0), NoWatch]
+#endif
+		public static bool IsStereoMvHevcEncodeSupported ()
+		{
+			return VTIsStereoMVHEVCEncodeSupported () != 0;
+		}
+#endif // !__WATCHOS__
 	}
 }

src/VideoToolbox/VTDecompressionSession.cs

@@ -392,5 +392,33 @@ public static bool IsHardwareDecodeSupported (CMVideoCodecType codecType)
 		{
 			return VTIsHardwareDecodeSupported (codecType) != 0;
 		}
+
+#if !__WATCHOS__
+#if NET
+		[SupportedOSPlatform ("macos14.0")]
+		[SupportedOSPlatform ("ios17.0")]
+		[SupportedOSPlatform ("tvos17.0")]
+		[SupportedOSPlatform ("maccatalyst17.0")]
+#else
+		[iOS (17, 0), TV (17, 0), Mac (14, 0), NoWatch]
+#endif
+		[DllImport (Constants.VideoToolboxLibrary)]
+		extern static /* Boolean */ byte VTIsStereoMVHEVCDecodeSupported ();
+
+		/// <summary>Returns whether the current system supports stereo MV-HEVC decode.</summary>
+		/// <returns>True if the current system supports stereo MV-HEVC decode, false otherwise.</returns>
+#if NET
+		[SupportedOSPlatform ("macos14.0")]
+		[SupportedOSPlatform ("ios17.0")]
+		[SupportedOSPlatform ("tvos17.0")]
+		[SupportedOSPlatform ("maccatalyst17.0")]
+#else
+		[iOS (17, 0), TV (17, 0), Mac (14, 0), NoWatch]
+#endif
+		public static bool IsStereoMvHevcDecodeSupported ()
+		{
+			return VTIsStereoMVHEVCDecodeSupported () != 0;
+		}
+#endif // !__WATCHOS__
 	}
 }

src/VideoToolbox/VTDefs.cs

@@ -64,6 +64,11 @@ public enum VTStatus {
 		VideoDecoderCallbackMessaging = -17695,
 		[Mac (13, 0), iOS (16, 0), MacCatalyst (16, 0), Watch (9, 0), TV (16, 0)]
 		VideoDecoderUnknownErr = -17696,
+		ExtensionDisabledErr = -17697,
+		VideoEncoderMVHEVCVideoLayerIDsMismatchErr = -17698,
+		CouldNotOutputTaggedBufferGroupErr = -17699,
+		CouldNotFindExtensionErr = -19510,
+		ExtensionConflictErr = -19511,
 	}
 
 	// uint32_t -> VTErrors.h
@@ -83,6 +88,7 @@ public enum VTDecodeInfoFlags : uint {
 		Asynchronous = 1 << 0,
 		FrameDropped = 1 << 1,
 		ImageBufferModifiable = 1 << 2,
+		SkippedLeadingFrameDropped = 1 << 3,
 	}
 
 	// UInt32 -> VTErrors.h

src/VideoToolbox/VTHdrPerFrameMetadataGenerationSession.cs

@@ -0,0 +1,92 @@
+#if !WATCH && NET
+
+#nullable enable
+
+using System;
+using System.Runtime.InteropServices;
+
+using CoreFoundation;
+using CoreVideo;
+using Foundation;
+using ObjCRuntime;
+
+namespace VideoToolbox {
+
+	/// <summary>This class can be used to perform HDR Per Frame Metadata Generation.</summary>
+#if NET
+	[SupportedOSPlatform ("ios18.0")]
+	[SupportedOSPlatform ("maccatalyst18.0")]
+	[SupportedOSPlatform ("macos15.0")]
+	[SupportedOSPlatform ("tvos18.0")]
+#else
+	[NoWatch, TV (18, 0), Mac (15, 0), iOS (18, 0), MacCatalyst (18, 0)]
+#endif
+	public class VTHdrPerFrameMetadataGenerationSession : NativeObject {
+		[Preserve (Conditional = true)]
+		protected VTHdrPerFrameMetadataGenerationSession (NativeHandle handle, bool owns)
+			: base (handle, owns)
+		{
+		}
+
+		[DllImport (Constants.VideoToolboxLibrary)]
+		static extern nint VTHDRPerFrameMetadataGenerationSessionGetTypeID ();
+
+		/// <summary>Get this type's CFTypeID.</summary>
+		public static nint GetTypeId ()
+		{
+			return VTHDRPerFrameMetadataGenerationSessionGetTypeID ();
+		}
+
+		[DllImport (Constants.VideoToolboxLibrary)]
+		unsafe static extern int /* OSStatus */ VTHDRPerFrameMetadataGenerationSessionCreate (
+			IntPtr /* CM_NULLABLE CFAllocatorRef */ allocator,
+			float framesPerSecond,
+			IntPtr /* CM_NULLABLE CFDictionaryRef */ options,
+			IntPtr* /* CM_RETURNS_RETAINED_PARAMETER CM_NULLABLE VTHDRPerFrameMetadataGenerationSessionRef * CM_NONNULL */ hdrPerFrameMetadataGenerationSessionOut
+		);
+
+		/// <summary>Create a new <see cref="VTHdrPerFrameMetadataGenerationSession" /> instance.</summary>
+		/// <param name="framesPerSecond">This value must be greater than 0.0.</param>
+		/// <param name="options">An optional dictionary of options to use.</param>
+		/// <param name="error">An error code if the operation was unsuccessful, otherwise <see cref="VTStatus.Ok" />.</param>
+		/// <returns>A new <see cref="VTHdrPerFrameMetadataGenerationSession" /> instance, or null in case of failure. See the <paramref name="error" /> parameter for the error code.</returns>
+		public static VTHdrPerFrameMetadataGenerationSession? Create (float framesPerSecond, NSDictionary? options, out VTStatus error)
+		{
+			IntPtr handle;
+			unsafe {
+				error = (VTStatus) VTHDRPerFrameMetadataGenerationSessionCreate (IntPtr.Zero, framesPerSecond, options.GetHandle (), &handle);
+			}
+			if (error == VTStatus.Ok && handle != IntPtr.Zero)
+				return new VTHdrPerFrameMetadataGenerationSession (handle, owns: true);
+			return null;
+		}
+
+		/// <summary>Create a new <see cref="VTHdrPerFrameMetadataGenerationSession" /> instance.</summary>
+		/// <param name="framesPerSecond">This value must be greater than 0.0.</param>
+		/// <param name="options">An optional dictionary of options to use.</param>
+		/// <param name="error">An error code if the operation was unsuccessful, otherwise <see cref="VTStatus.Ok" />.</param>
+		/// <returns>A new <see cref="VTHdrPerFrameMetadataGenerationSession" /> instance, or null in case of failure. See the <paramref name="error" /> parameter for the error code.</returns>
+		public static VTHdrPerFrameMetadataGenerationSession? Create (float framesPerSecond, VTHdrPerFrameMetadataGenerationOptions? options, out VTStatus error)
+		{
+			return Create (framesPerSecond, options?.Dictionary, out error);
+		}
+
+		[DllImport (Constants.VideoToolboxLibrary)]
+		unsafe static extern VTStatus /* OSStatus */ VTHDRPerFrameMetadataGenerationSessionAttachMetadata (
+			IntPtr /* VTHDRPerFrameMetadataGenerationSessionRef */ hdrPerFrameMetadataGenerationSession,
+			IntPtr /* CVPixelBufferRef */ pixelBuffer,
+			byte /* Boolean */ sceneChange
+		);
+
+		/// <summary>Analyze and attach per-frame HDR metadata to the <see cref="CVPixelBuffer" /> and its backing <see cref="IOSurface" />.</summary>
+		/// <param name="pixelBuffer">The pixel buffer to attach the metadata to.</param>
+		/// <param name="sceneChange">Set this value to true if this frame's brightness changed significantly compared to the previous frame (for example if going from an outdoor scene to an indoor scene).</param>
+		/// <returns>An error code if the operation was unsuccessful, otherwise <see cref="VTStatus.Ok" />.</returns>
+		public VTStatus AttachMetadata (CVPixelBuffer pixelBuffer, bool sceneChange)
+		{
+			return VTHDRPerFrameMetadataGenerationSessionAttachMetadata (GetCheckedHandle (), pixelBuffer.GetNonNullHandle (nameof (pixelBuffer)), sceneChange.AsByte ());
+		}
+	}
+}
+
+#endif // !WATCH