770df5ca4e
Introduce a pipeline model that lists the operations applied by the camera pipeline. This is a first step towards defining explicitly how the camera processes images, and how the libcamera controls affect the processing. The initial list of operations is meant to be expanded, and possibly refactored (a block diagram should also be considered to make this easier to read). How the controls affect the pipeline is largely missing at this stage, with only a short explanation of the digital zoom to show how this is meant to be documented. More documentation will be added over time. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Fricke <sebastian.fricke.linux@gmail.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>