[VideoToolbox] Update bindings up to Xcode 27 Beta 3 by dalexsoto · Pull Request #25990 · dotnet/macios

dalexsoto · 2026-07-09T02:02:29Z

Bind the missing VideoToolbox APIs for Xcode 27 (SDK 27.0):

kVTCompressionPreset_ConsistentQuality
kVTCompressionPropertyKey_ConstantQualityFactor
kVTCompressionPropertyKey_LogTransferFunction
kVTProjectionKind_AppleImmersiveVideo (not available on tvOS)
+[VTLowLatencyFrameInterpolationConfiguration maximumDimensionForSpatialScaleFactor:]
+[VTLowLatencyFrameInterpolationConfiguration maximumPixelCountForSpatialScaleFactor:]

Remove the resolved xtro .todo entries and add the corresponding Documentation.KnownFailures.txt entries for the new public members.

Bind the missing VideoToolbox APIs for Xcode 27 (SDK 27.0): * kVTCompressionPreset_ConsistentQuality * kVTCompressionPropertyKey_ConstantQualityFactor * kVTCompressionPropertyKey_LogTransferFunction * kVTProjectionKind_AppleImmersiveVideo (not available on tvOS) * +[VTLowLatencyFrameInterpolationConfiguration maximumDimensionForSpatialScaleFactor:] * +[VTLowLatencyFrameInterpolationConfiguration maximumPixelCountForSpatialScaleFactor:] Remove the resolved xtro .todo entries and add the corresponding Documentation.KnownFailures.txt entries for the new public members. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot

Pull request overview

Updates the VideoToolbox bindings to cover newly exposed SDK 27.0 (Xcode 27 beta 3) APIs, and synchronizes the repository’s annotation/documentation test baselines accordingly.

Changes:

Added new VTCompression* preset/property bindings (including new preset dictionaries + compression property keys).
Added the new VTProjectionKind.AppleImmersiveVideo smart-enum value (not on tvOS) and new VTLowLatencyFrameInterpolationConfiguration static query APIs.
Removed now-resolved xtro-sharpie .todo entries and added corresponding Documentation.KnownFailures.txt entries for the new public surface area.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
`src/videotoolbox.cs`	Adds the new VideoToolbox constants/properties/enum value and two new static selector bindings for SDK 27.0.
`tests/cecil-tests/Documentation.KnownFailures.txt`	Registers documentation known-failures for the newly introduced public members so cecil documentation tests stay in sync.
`tests/xtro-sharpie/api-annotations-dotnet/iOS-VideoToolbox.todo`	Removes resolved missing-binding entries for iOS.
`tests/xtro-sharpie/api-annotations-dotnet/tvOS-VideoToolbox.todo`	Removes resolved missing-binding entries for tvOS.
`tests/xtro-sharpie/api-annotations-dotnet/macOS-VideoToolbox.todo`	Removes resolved missing-binding entries for macOS.
`tests/xtro-sharpie/api-annotations-dotnet/MacCatalyst-VideoToolbox.todo`	Removes resolved missing-binding entries for Mac Catalyst.

vs-mobiletools-engineering-service2 · 2026-07-09T04:17:01Z

✅ [PR Build #c660dfb] Build passed (Build packages) ✅

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vs-mobiletools-engineering-service2 · 2026-07-09T04:20:00Z

✅ [CI Build #c660dfb] Build passed (Detect API changes) ✅

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vs-mobiletools-engineering-service2 · 2026-07-09T04:33:40Z

✅ API diff for current PR / commit

NET (empty diffs)

iOS: vsdrops gist ( No breaking changes )
tvOS: vsdrops gist ( No breaking changes )
MacCatalyst: vsdrops gist ( No breaking changes )
macOS: vsdrops gist ( No breaking changes )

✅ API diff vs stable

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iOS: vsdrops gist ( No breaking changes )
tvOS: vsdrops gist ( No breaking changes )
MacCatalyst: vsdrops gist ( No breaking changes )
macOS: vsdrops gist ( No breaking changes )

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vs-mobiletools-engineering-service2 · 2026-07-09T05:04:26Z

✅ [CI Build #c660dfb] Build passed (Build macOS tests) ✅

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rolfbjarne · 2026-07-09T06:26:27Z

+		[TV (27, 0), MacCatalyst (27, 0), Mac (27, 0), iOS (27, 0)]
+		// not strongly typed to CMFormatDescriptionLogTransferFunction because other values are allowed as well
+		[Export ("LogTransferFunction")]
+		string LogTransferFunction { get; set; }


I wonder if we should have a strongly typed LogTransferFunction, and then a WeakLogTransferFunction as well? NBD either way.

@copilot file an issue so we do not forget

Filed #26006 to track adding a strongly typed LogTransferFunction (with WeakLogTransferFunction) using CMFormatDescriptionLogTransferFunction.

vs-mobiletools-engineering-service2 · 2026-07-09T09:27:30Z

🔥 [CI Build #c660dfb] Test results 🔥

Test results

❌ Tests failed on VSTS: test results

1 tests crashed, 0 tests failed, 191 tests passed.

Failures

❌ Tests on macOS Golden Gate (27) tests

🔥 Failed catastrophically on VSTS: test results - mac_golden_gate (no summary found).

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Successes

✅ assembly-processing: All 1 tests passed. Html Report (VSDrops) Download
✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. Html Report (VSDrops) Download
✅ introspection: All 6 tests passed. Html Report (VSDrops) Download
✅ linker (iOS): All 15 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ linker (MacCatalyst): All 15 tests passed. Html Report (VSDrops) Download
✅ linker (macOS): All 21 tests passed. Html Report (VSDrops) Download
✅ linker (tvOS): All 15 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 18 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 17 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 18 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 18 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ sharpie: All 1 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

macOS tests

✅ Tests on macOS Sonoma (14): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sequoia (15): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Tahoe (26): All 5 tests passed. Html Report (VSDrops) Download

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Hash: c660dfba9b2a20326ed3a5295c6bf40793472792 [PR build]

dalexsoto added this to the xcode27 milestone Jul 9, 2026

dalexsoto requested review from Copilot and rolfbjarne July 9, 2026 02:02

dalexsoto added the copilot label Jul 9, 2026

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Merge branch 'xcode27.0' into xc27-videotoolbox

c660dfb

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rolfbjarne approved these changes Jul 9, 2026

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Copilot started work on behalf of dalexsoto July 9, 2026 11:52 View session

dalexsoto mentioned this pull request Jul 9, 2026

[VideoToolbox] Add strongly typed LogTransferFunction to VTCompressionProperties #26006

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Copilot finished work on behalf of dalexsoto July 9, 2026 11:53

dalexsoto merged commit b1feb51 into xcode27.0 Jul 9, 2026
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dalexsoto deleted the xc27-videotoolbox branch July 9, 2026 11:54

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vs-mobiletools-engineering-service2 commented Jul 9, 2026

✅ [PR Build #c660dfb] Build passed (Build packages) ✅

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✅ [CI Build #c660dfb] Build passed (Detect API changes) ✅

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vs-mobiletools-engineering-service2 commented Jul 9, 2026

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vs-mobiletools-engineering-service2 commented Jul 9, 2026

✅ [CI Build #c660dfb] Build passed (Build macOS tests) ✅

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vs-mobiletools-engineering-service2 commented Jul 9, 2026

🔥 [CI Build #c660dfb] Test results 🔥

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❌ Tests on macOS Golden Gate (27) tests

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