[libcamera-devel] [PATCH v3 2/6] libcamera: properties: Define 'lens' properties

[Jacopo Mondi]

Define properties that describe the optical characteristics of the image
sensor.

Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>

---
v2 -> v3:
- Pluralize names of properties which transport multiple values
- Again 'size' vs 'compound' is hard to guess
---
 src/libcamera/property_ids.yaml | 34 +++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids.yaml
index 4cecb5ad9ac3..80f9b1b3c264 100644
--- a/src/libcamera/property_ids.yaml
+++ b/src/libcamera/property_ids.yaml
@@ -563,4 +563,38 @@ controls:
         The range of supported ISO sensitivities, as documented by the
         ISO 12232:2006 standard
 
+  - LensApertures:
+      type: float
+      size: [16]
+      description: |
+        The available lens apertures, expressed as f numbers (the ratio between
+        the lens focal distance and the diameter of the pupil aperture).
+
+        If the camera module has a fixed aperture, the property transports a
+        single value.
+
+  - LensFocalLengths:
+      type: float
+      size: [16]
+      description: |
+        The available lens focal lengths, expressed in millimeters.
+
+        If the camera module supports multiple focal lengths this property
+        reports the focal lengths associated with each discrete step. For
+        camera modules with a single focal length, a single value should be
+        instead reported.
+
+  - LensHyperfocalDistances:
+      type: float
+      size: [16]
+      description: |
+        The hyperfocal distance of the camera module. The property is
+        particularly meaningful for modules with a single focal length.
+
+  - LensMinimumFocusDistance:
+      type: float
+      description: |
+        The shortest distance in millimeters at which an object could be brought
+        into sharp focus.
+
 ...
-- 
2.25.0