From 8d425237eec746c6740074078ba2c1a6e4749bbf Mon Sep 17 00:00:00 2001
From: Georg Hagen <git.georg.hagen@madvoxel.com>
Date: Sun, 16 Feb 2025 14:58:40 +0100
Subject: [PATCH] Fix issue where missing new FocalLength and FNumber fields in
 ar recording cause crash

---
 openVulkanoCpp/AR/ArFrameMetadata.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/openVulkanoCpp/AR/ArFrameMetadata.cpp b/openVulkanoCpp/AR/ArFrameMetadata.cpp
index 2af4651..361902c 100644
--- a/openVulkanoCpp/AR/ArFrameMetadata.cpp
+++ b/openVulkanoCpp/AR/ArFrameMetadata.cpp
@@ -109,8 +109,8 @@ namespace OpenVulkano::AR
 		frameData.intrinsic = {intrinsic, res};
 		camNode["ExposureDuration"] >> frameData.exposureTime;
 		camNode["ExposureOffset"] >> frameData.exposureOffset;
-		camNode["FocalLength"] >> frameData.focalLength;
-		camNode["FNumber"] >> frameData.fNumber;
+		if (camNode["FocalLength"].readable()) camNode["FocalLength"] >> frameData.focalLength;
+		if (camNode["FNumber"].readable()) camNode["FNumber"] >> frameData.fNumber;
 		uint64_t nanos;
 		root["Timestamp"] >> nanos;
 		frameData.timestamp = nanos;