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CoreVideo iOS xcode26.0 rc
Alex Soto edited this pageSep 10, 2025 ·2 revisions
#CoreVideo.frameworkhttps://github.com/dotnet/macios/pull/23779
diff -ruN /Applications/Xcode_26.0.0-beta7.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreVideo.framework/Headers/CVImageBuffer.h /Applications/Xcode_26.0.0-rc.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreVideo.framework/Headers/CVImageBuffer.h--- /Applications/Xcode_26.0.0-beta7.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreVideo.framework/Headers/CVImageBuffer.h2025-08-04 04:27:04+++ /Applications/Xcode_26.0.0-rc.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreVideo.framework/Headers/CVImageBuffer.h2025-08-03 00:20:39@@ -248,9 +248,21 @@ Indicates that the transfer function or gamma of the content is a log format and identifies the specific log curve. @discussion The value is a CFString holding fully specified reverse DNS identifier.-Content captured in Apple Log will have this key set to kCVImageBufferLogTransferFunction_AppleLog.+Log is a specific video format usually processed in a camera's ISP. A Log video format usually defines:+ Scene-referred color primaries designed to preserve the chromaticity range captured by a camera sensor. In cinematography, "scene-referred" color primaries refers to a color space designed to accurately preserve the chromaticity and dynamic range directly captured by a camera sensor.+ A specific gamma curve (or transfer characteristic) tailored to capturing the full dynamic range from the sensor. This gamma curve is usually shaped like a log curve (hence the name Log).+ A set of matrix transforms to go from RGB to Y'CbCr (Y'CbCr being the most common format used to store the bits compressed into a file).+ As described above, a Log video format defines a whole color space (even though the “log” part of the name comes only from the “transfer characteristic” or gamma curve)+ Content captured in Apple Log will have this key set to kCVImageBufferLogTransferFunction_AppleLog or kCVImageBufferLogTransferFunction_AppleLog2. @constant kCVImageBufferLogTransferFunction_AppleLog Indicates the Apple Log identifier.+ @constant kCVImageBufferLogTransferFunction_AppleLog2+Indicates the Apple Log 2 identifier.+To use Apple Log 2, set other color attachments as follows:+kCVImageBufferColorPrimariesKey = undefined or absent+kCVImageBufferTransferFunctionKey = undefined or absent+kCVImageBufferYCbCrMatrixKey = kCVImageBufferYCbCrMatrix_ITU_R_2020+https://developer.apple.com/download/all/?q=Apple%20log%20profile @discussion You can download the Apple Log Profile White Paper from the Apple Developer Downloads website. */@@ -258,6 +270,7 @@ CV_EXPORT const CFStringRef CV_NONNULL kCVImageBufferLogTransferFunction_AppleLog API_AVAILABLE(macosx(14.2), ios(17.2), tvos(17.2), watchos(10.2), visionos(1.1));+CV_EXPORT const CFStringRef CV_NONNULL kCVImageBufferLogTransferFunction_AppleLog2 API_AVAILABLE(macosx(26.0), ios(26.0), tvos(26.0), watchos(26.0), visionos(26.0)); /*! @constant kCVImageBufferDisplayMaskRectangleKey