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diff --git a/Documentation/media/uapi/v4l/ext-ctrls-detect.rst b/Documentation/media/uapi/v4l/ext-ctrls-detect.rst new file mode 100644 index 000000000000..8a45ce642829 --- /dev/null +++ b/Documentation/media/uapi/v4l/ext-ctrls-detect.rst @@ -0,0 +1,71 @@ +.. Permission is granted to copy, distribute and/or modify this +.. document under the terms of the GNU Free Documentation License, +.. Version 1.1 or any later version published by the Free Software +.. Foundation, with no Invariant Sections, no Front-Cover Texts +.. and no Back-Cover Texts. A copy of the license is included at +.. Documentation/media/uapi/fdl-appendix.rst. +.. +.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections + +.. _detect-controls: + +************************ +Detect Control Reference +************************ + +The Detect class includes controls for common features of various motion +or object detection capable devices. + + +.. _detect-control-id: + +Detect Control IDs +================== + +``V4L2_CID_DETECT_CLASS (class)`` + The Detect class descriptor. Calling + :ref:`VIDIOC_QUERYCTRL` for this control will + return a description of this control class. + +``V4L2_CID_DETECT_MD_MODE (menu)`` + Sets the motion detection mode. + +.. tabularcolumns:: |p{7.5cm}|p{10.0cm}| + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + * - ``V4L2_DETECT_MD_MODE_DISABLED`` + - Disable motion detection. + * - ``V4L2_DETECT_MD_MODE_GLOBAL`` + - Use a single motion detection threshold. + * - ``V4L2_DETECT_MD_MODE_THRESHOLD_GRID`` + - The image is divided into a grid, each cell with its own motion + detection threshold. These thresholds are set through the + ``V4L2_CID_DETECT_MD_THRESHOLD_GRID`` matrix control. + * - ``V4L2_DETECT_MD_MODE_REGION_GRID`` + - The image is divided into a grid, each cell with its own region + value that specifies which per-region motion detection thresholds + should be used. Each region has its own thresholds. How these + per-region thresholds are set up is driver-specific. The region + values for the grid are set through the + ``V4L2_CID_DETECT_MD_REGION_GRID`` matrix control. + + + +``V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD (integer)`` + Sets the global motion detection threshold to be used with the + ``V4L2_DETECT_MD_MODE_GLOBAL`` motion detection mode. + +``V4L2_CID_DETECT_MD_THRESHOLD_GRID (__u16 matrix)`` + Sets the motion detection thresholds for each cell in the grid. To + be used with the ``V4L2_DETECT_MD_MODE_THRESHOLD_GRID`` motion + detection mode. Matrix element (0, 0) represents the cell at the + top-left of the grid. + +``V4L2_CID_DETECT_MD_REGION_GRID (__u8 matrix)`` + Sets the motion detection region value for each cell in the grid. To + be used with the ``V4L2_DETECT_MD_MODE_REGION_GRID`` motion + detection mode. Matrix element (0, 0) represents the cell at the + top-left of the grid. |