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authorNiklas Söderlund <niklas.soderlund@ragnatech.se>2019-02-26 01:37:53 +0100
committerNiklas Söderlund <niklas.soderlund@ragnatech.se>2019-03-01 00:28:17 +0100
commit77100a7578d8a0ccc56e6ab11a8dbe3c74665c4d (patch)
treec7fe5b995ee0cd8524839781e04be773a4bee795 /utils
parent132ce9c1cf6951d8cba8ff6ff5fbccadead385c1 (diff)
libcamera: camera: add state machine to control access from applications
There is a need to better control the order of operations an application performs on a camera for it to function correctly. Add a basic state machine to ensure applications perform operations on the camera in good order. Internal to the Camera states are added; Available, Acquired, Configured, Prepared and Running. Each state represents a higher state of configuration of the camera ultimately leading to the highest state where the camera is capturing frames. Each state supports a subset of operations the application may perform. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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