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Expose AR Frame iso

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This commit is contained in:
Georg Hagen
2025-08-11 15:40:11 +02:00
parent a6052c8a9d
commit 8cf597f7e8
3 changed files with 6 additions and 1 deletions
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4
openVulkanoCpp/AR/ArFrameMetadata.cpp
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@@ -112,6 +112,7 @@ namespace OpenVulkano::AR
camNode["ExposureOffset"] >> frameData.exposureOffset;
if (camNode["FocalLength"].readable()) camNode["FocalLength"] >> frameData.focalLength;
if (camNode["FNumber"].readable()) camNode["FNumber"] >> frameData.fNumber;
if (camNode["ISO"].readable()) camNode["ISO"] >> frameData.isoSpeed;
uint64_t nanos;
root["Timestamp"] >> nanos;
frameData.timestamp = nanos;
@@ -150,6 +151,7 @@ namespace OpenVulkano::AR
ExposureOffset: {}
FocalLength: {}
FNumber: {}
ISO: {}
Timestamp: {}
TimestampDepth: {}
TrackingState:
@@ -170,7 +172,7 @@ Light:
camMat[0][0], camMat[1][0], camMat[2][0],
camMat[0][1], camMat[1][1], camMat[2][1],
camMat[0][2], camMat[1][2], camMat[2][2],
exposureTime, exposureOffset, focalLength, fNumber,
exposureTime, exposureOffset, focalLength, fNumber, isoSpeed,
timestamp.GetNanos(), timestampDepth.GetNanos(),
trackingState.GetName(), lightIntensity, lightColorTemp
);

1
openVulkanoCpp/AR/ArFrameMetadata.hpp
View File

@@ -20,6 +20,7 @@ namespace OpenVulkano::AR
Math::Timestamp timestamp, timestampDepth;
ArTrackingState trackingState;
float physicalPixelSize = 0, focalLength = 0, fNumber = 0;
int isoSpeed = 0;
[[nodiscard]] std::string ToYaml() const;

2
openVulkanoCpp/AR/Provider/ArKit/ArFrameArKit.mm
View File

@@ -93,6 +93,8 @@ namespace OpenVulkano::AR::ArKit
{
frameData.focalLength = [(NSNumber*)[arFrame.exifData valueForKey:(__bridge NSString*)kCGImagePropertyExifFocalLength] floatValue];
frameData.fNumber = [(NSNumber*)[arFrame.exifData valueForKey:(__bridge NSString*)kCGImagePropertyExifFNumber] floatValue];
auto isos = (NSArray*)[arFrame.exifData valueForKey:(__bridge NSString*)kCGImagePropertyExifISOSpeedRatings];
frameData.isoSpeed = [(NSNumber*)[isos firstObject] intValue];
}
return frameData;