tree d005233f365411e6db0dc6d846c15693180a69e3
parent 1d92152339587174363c3c9f7561de95646d5625
author Sakari Ailus <sakari.ailus@linux.intel.com> 1677001049 +0200
committer Hans Verkuil <hverkuil-cisco@xs4all.nl> 1714395396 +0200

media: v4l: Support line-based metadata capture

Many camera sensors, among other devices, transmit embedded data and image
data for each CSI-2 frame. This embedded data typically contains register
configuration of the sensor that has been used to capture the image data
of the same frame.

The embedded data is received by the CSI-2 receiver and has the same
properties as the image data, including that it is line based: it has
width, height and bytesperline (stride).

Add these fields to struct v4l2_meta_format and document them.

Also add V4L2_FMT_FLAG_META_LINE_BASED to tell a given format is
line-based i.e. these fields of struct v4l2_meta_format are valid for it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>