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| -rw-r--r-- | core/java/android/hardware/camera2/CameraMetadata.java | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/core/java/android/hardware/camera2/CameraMetadata.java b/core/java/android/hardware/camera2/CameraMetadata.java index d3575c03c9f6..3ffc21d2c6e3 100644 --- a/core/java/android/hardware/camera2/CameraMetadata.java +++ b/core/java/android/hardware/camera2/CameraMetadata.java @@ -906,6 +906,24 @@ public abstract class CameraMetadata<TKey> { * <li>{@link CameraCharacteristics#LENS_POSE_REFERENCE android.lens.poseReference}</li> * <li>{@link CameraCharacteristics#LENS_DISTORTION android.lens.distortion}</li> * </ul> + * <p>The field of view of all non-RAW physical streams must be the same or as close as + * possible to that of non-RAW logical streams. If the requested FOV is outside of the + * range supported by the physical camera, the physical stream for that physical camera + * will use either the maximum or minimum scaler crop region, depending on which one is + * closer to the requested FOV. For example, for a logical camera with wide-tele lens + * configuration where the wide lens is the default, if the logical camera's crop region + * is set to maximum, the physical stream for the tele lens will be configured to its + * maximum crop region. On the other hand, if the logical camera has a normal-wide lens + * configuration where the normal lens is the default, when the logical camera's crop + * region is set to maximum, the FOV of the logical streams will be that of the normal + * lens. The FOV of the physical streams for the wide lens will be the same as the + * logical stream, by making the crop region smaller than its active array size to + * compensate for the smaller focal length.</p> + * <p>Even if the underlying physical cameras have different RAW characteristics (such as + * size or CFA pattern), a logical camera can still advertise RAW capability. In this + * case, when the application configures a RAW stream, the camera device will make sure + * the active physical camera will remain active to ensure consistent RAW output + * behavior, and not switch to other physical cameras.</p> * <p>To maintain backward compatibility, the capture request and result metadata tags * required for basic camera functionalities will be solely based on the * logical camera capabiltity. Other request and result metadata tags, on the other |