V4L2_META_FMT_SENSOR_DATA (‘SENS’)¶
Sensor Ancillary Metadata
Description¶
This format describes ancillary data generated by a camera sensor and transmitted over a stream on the camera bus. Sensor vendors generally have their own custom format for this ancillary data. Some vendors follow a generic CSI-2/SMIA embedded data format as described in the CSI-2 specification.
The size of the embedded buffer is defined as a single line with a pixel width
width specified in bytes. This is obtained by a call to the
VIDIOC_SUBDEV_G_FMT
ioctl on the sensor subdevice where the pad
field in v4l2_subdev_format
is set to 1. Note that this size is fixed
and cannot be modified with a call to VIDIOC_SUBDEV_S_FMT
.