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-rw-r--r--src/libcamera/pipeline/ipu3/cio2.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libcamera/pipeline/ipu3/cio2.cpp b/src/libcamera/pipeline/ipu3/cio2.cpp
index ceaf665e..9cedcb5b 100644
--- a/src/libcamera/pipeline/ipu3/cio2.cpp
+++ b/src/libcamera/pipeline/ipu3/cio2.cpp
@@ -295,6 +295,14 @@ V4L2SubdeviceFormat CIO2Device::getSensorFormat(const std::vector<unsigned int>
continue;
float ratio = static_cast<float>(sz.width) / sz.height;
+ /*
+ * Ratios can differ by small mantissa difference which
+ * can affect the selection of the sensor output size
+ * wildly. We are interested in selection of the closest
+ * size with respect to the desired output size, hence
+ * comparing it with a single precision digit is enough.
+ */
+ ratio = static_cast<unsigned int>(ratio * 10) / 10.0;
float ratioDiff = fabsf(ratio - desiredRatio);
unsigned int area = sz.width * sz.height;
unsigned int areaDiff = area - desiredArea;