[CoreMediaIO] Add complete C# bindings for CoreMediaIO framework up to Xcode 26.4

src/CoreMediaIO/CMIODeviceAvcCommand.cs

@@ -0,0 +1,60 @@
+#nullable enable
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using ObjCRuntime;
+
+namespace CoreMediaIO {
+
+	/// <summary>Represents an Audio Video Control (AVC) command to be sent to a CoreMediaIO device.</summary>
+	/// <remarks>
+	/// <para>The AVC protocol is used for device control over IEEE 1394 (FireWire) connections.</para>
+	/// <para>The <see cref="Command" /> and <see cref="Response" /> fields point to caller-owned byte buffers.
+	/// These buffers must remain valid for the duration of the native call that uses this struct.</para>
+	/// </remarks>
+	[SupportedOSPlatform ("macos")]
+	[SupportedOSPlatform ("maccatalyst15.4")]
+	[UnsupportedOSPlatform ("ios")]
+	[UnsupportedOSPlatform ("tvos")]
+	[NativeName ("CMIODeviceAVCCommand")]
+	[StructLayout (LayoutKind.Sequential)]
+	public struct CMIODeviceAvcCommand {
+		IntPtr mCommand;
+		uint mCommandLength;
+		IntPtr mResponse;
+		uint mResponseLength;
+		uint mResponseUsed;
+
+#if !COREBUILD
+		/// <summary>Gets or sets a pointer to the buffer containing the AVC command bytes to send.</summary>
+		public IntPtr Command {
+			get => mCommand;
+			set => mCommand = value;
+		}
+
+		/// <summary>Gets or sets the size (in bytes) of the <see cref="Command" /> buffer.</summary>
+		public uint CommandLength {
+			get => mCommandLength;
+			set => mCommandLength = value;
+		}
+
+		/// <summary>Gets or sets a pointer to the buffer that will receive the AVC response bytes.</summary>
+		public IntPtr Response {
+			get => mResponse;
+			set => mResponse = value;
+		}
+
+		/// <summary>Gets or sets the size (in bytes) of the <see cref="Response" /> buffer.</summary>
+		public uint ResponseLength {
+			get => mResponseLength;
+			set => mResponseLength = value;
+		}
+
+		/// <summary>Gets the actual number of response bytes written to the <see cref="Response" /> buffer.</summary>
+		public uint ResponseUsed {
+			get => mResponseUsed;
+		}
+#endif // !COREBUILD
+	}
+}

src/CoreMediaIO/CMIODeviceRS422Command.cs

@@ -0,0 +1,60 @@
+#nullable enable
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using ObjCRuntime;
+
+namespace CoreMediaIO {
+
+	/// <summary>Represents an RS-422 serial protocol command to be sent to a CoreMediaIO device.</summary>
+	/// <remarks>
+	/// <para>RS-422 is a serial communication protocol commonly used for professional video deck control.</para>
+	/// <para>The <see cref="Command" /> and <see cref="Response" /> fields point to caller-owned byte buffers.
+	/// These buffers must remain valid for the duration of the native call that uses this struct.</para>
+	/// </remarks>
+	[SupportedOSPlatform ("macos")]
+	[SupportedOSPlatform ("maccatalyst15.4")]
+	[UnsupportedOSPlatform ("ios")]
+	[UnsupportedOSPlatform ("tvos")]
+	[NativeName ("CMIODeviceRS422Command")]
+	[StructLayout (LayoutKind.Sequential)]
+	public struct CMIODeviceRS422Command {
+		IntPtr mCommand;
+		uint mCommandLength;
+		IntPtr mResponse;
+		uint mResponseLength;
+		uint mResponseUsed;
+
+#if !COREBUILD
+		/// <summary>Gets or sets a pointer to the buffer containing the RS-422 command bytes to send.</summary>
+		public IntPtr Command {
+			get => mCommand;
+			set => mCommand = value;
+		}
+
+		/// <summary>Gets or sets the size (in bytes) of the <see cref="Command" /> buffer.</summary>
+		public uint CommandLength {
+			get => mCommandLength;
+			set => mCommandLength = value;
+		}
+
+		/// <summary>Gets or sets a pointer to the buffer that will receive the RS-422 response bytes.</summary>
+		public IntPtr Response {
+			get => mResponse;
+			set => mResponse = value;
+		}
+
+		/// <summary>Gets or sets the size (in bytes) of the <see cref="Response" /> buffer.</summary>
+		public uint ResponseLength {
+			get => mResponseLength;
+			set => mResponseLength = value;
+		}
+
+		/// <summary>Gets the actual number of response bytes written to the <see cref="Response" /> buffer.</summary>
+		public uint ResponseUsed {
+			get => mResponseUsed;
+		}
+#endif // !COREBUILD
+	}
+}

src/CoreMediaIO/CMIOInterop.cs

@@ -0,0 +1,124 @@
+#nullable enable
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using CoreMedia;
+using ObjCRuntime;
+
+namespace CoreMediaIO {
+
+#if !COREBUILD
+	/// <summary>Low-level P/Invoke declarations for CoreMediaIO hardware object, device, stream, and sample buffer C functions.</summary>
+	[SupportedOSPlatform ("macos")]
+	[SupportedOSPlatform ("maccatalyst15.4")]
+	[UnsupportedOSPlatform ("ios")]
+	[UnsupportedOSPlatform ("tvos")]
+	internal static unsafe class CMIOInterop {
+
+		// CMIOHardwareObject.h
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern void CMIOObjectShow (uint objectId);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern byte CMIOObjectHasProperty (uint objectId, CMIOObjectPropertyAddress* address);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectIsPropertySettable (uint objectId, CMIOObjectPropertyAddress* address, byte* isSettable);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectGetPropertyDataSize (uint objectId, CMIOObjectPropertyAddress* address, uint qualifierDataSize, IntPtr qualifierData, uint* dataSize);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectGetPropertyData (uint objectId, CMIOObjectPropertyAddress* address, uint qualifierDataSize, IntPtr qualifierData, uint dataSize, uint* dataUsed, IntPtr data);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectSetPropertyData (uint objectId, CMIOObjectPropertyAddress* address, uint qualifierDataSize, IntPtr qualifierData, uint dataSize, IntPtr data);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectAddPropertyListener (uint objectId, CMIOObjectPropertyAddress* address, IntPtr listener, IntPtr clientData);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectRemovePropertyListener (uint objectId, CMIOObjectPropertyAddress* address, IntPtr listener, IntPtr clientData);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectAddPropertyListenerBlock (uint objectId, CMIOObjectPropertyAddress* address, IntPtr dispatchQueue, IntPtr listener);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOObjectRemovePropertyListenerBlock (uint objectId, CMIOObjectPropertyAddress* address, IntPtr dispatchQueue, IntPtr listener);
+
+		// CMIOHardwareDevice.h
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIODeviceStartStream (uint deviceId, uint streamId);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIODeviceStopStream (uint deviceId, uint streamId);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIODeviceProcessAVCCommand (uint deviceId, CMIODeviceAvcCommand* ioAvcCommand);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIODeviceProcessRS422Command (uint deviceId, CMIODeviceRS422Command* ioRS422Command);
+
+		// CMIOHardwareStream.h
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamCopyBufferQueue (uint streamId, IntPtr queueAlteredProc, IntPtr queueAlteredRefCon, IntPtr* queue);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamDeckPlay (uint streamId);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamDeckStop (uint streamId);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamDeckJog (uint streamId, int speed);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamDeckCueTo (uint streamId, ulong frameNumber, byte playOnCue);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamClockCreate (IntPtr allocator, IntPtr clockName, IntPtr sourceIdentifier, CMTime getTimeCallMinimumInterval, uint numberOfEventsForRateSmoothing, uint numberOfAveragesForRateSmoothing, IntPtr* clock);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamClockPostTimingEvent (CMTime eventTime, ulong hostTime, byte resynchronize, IntPtr clock);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOStreamClockInvalidate (IntPtr clock);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern CMTime CMIOStreamClockConvertHostTimeToDeviceTime (ulong hostTime, IntPtr clock);
+
+		// CMIOSampleBuffer.h
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOSampleBufferCreate (IntPtr allocator, IntPtr dataBuffer, IntPtr formatDescription, uint numSamples, uint numSampleTimingEntries, CMSampleTimingInfo* sampleTimingArray, uint numSampleSizeEntries, nuint* sampleSizeArray, ulong sequenceNumber, uint discontinuityFlags, IntPtr* sampleBufferOut);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOSampleBufferCreateForImageBuffer (IntPtr allocator, IntPtr imageBuffer, IntPtr formatDescription, CMSampleTimingInfo* sampleTiming, ulong sequenceNumber, uint discontinuityFlags, IntPtr* sampleBufferOut);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOSampleBufferCreateNoDataMarker (IntPtr allocator, uint noDataEvent, IntPtr formatDescription, ulong sequenceNumber, uint discontinuityFlags, IntPtr* sampleBufferOut);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern void CMIOSampleBufferSetSequenceNumber (IntPtr allocator, IntPtr sampleBuffer, ulong sequenceNumber);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern ulong CMIOSampleBufferGetSequenceNumber (IntPtr sampleBuffer);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern void CMIOSampleBufferSetDiscontinuityFlags (IntPtr allocator, IntPtr sampleBuffer, uint discontinuityFlags);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern uint CMIOSampleBufferGetDiscontinuityFlags (IntPtr sampleBuffer);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOSampleBufferCopyNonRequiredAttachments (IntPtr sourceSampleBuffer, IntPtr destinationSampleBuffer, uint attachmentMode);
+
+		[DllImport (Constants.CoreMediaIOLibrary)]
+		internal static extern int CMIOSampleBufferCopySampleAttachments (IntPtr sourceSampleBuffer, IntPtr destinationSampleBuffer);
+	}
+#endif // !COREBUILD
+}