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81 lines
2.0 KiB
81 lines
2.0 KiB
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
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.. _v4l2-selection-targets: |
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***************** |
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Selection targets |
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***************** |
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The precise meaning of the selection targets may be dependent on which |
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of the two interfaces they are used. |
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.. _v4l2-selection-targets-table: |
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.. raw:: latex |
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\small |
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.. tabularcolumns:: |p{6.2cm}|p{1.4cm}|p{7.3cm}|p{1.2cm}|p{0.8cm}| |
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.. cssclass:: longtable |
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.. flat-table:: Selection target definitions |
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:header-rows: 1 |
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:stub-columns: 0 |
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* - Target name |
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- id |
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- Definition |
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- Valid for V4L2 |
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- Valid for V4L2 subdev |
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* - ``V4L2_SEL_TGT_CROP`` |
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- 0x0000 |
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- Crop rectangle. Defines the cropped area. |
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- Yes |
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- Yes |
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* - ``V4L2_SEL_TGT_CROP_DEFAULT`` |
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- 0x0001 |
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- Suggested cropping rectangle that covers the "whole picture". |
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This includes only active pixels and excludes other non-active |
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pixels such as black pixels. |
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- Yes |
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- Yes |
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* - ``V4L2_SEL_TGT_CROP_BOUNDS`` |
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- 0x0002 |
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- Bounds of the crop rectangle. All valid crop rectangles fit inside |
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the crop bounds rectangle. |
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- Yes |
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- Yes |
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* - ``V4L2_SEL_TGT_NATIVE_SIZE`` |
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- 0x0003 |
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- The native size of the device, e.g. a sensor's pixel array. |
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``left`` and ``top`` fields are zero for this target. |
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- Yes |
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- Yes |
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* - ``V4L2_SEL_TGT_COMPOSE`` |
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- 0x0100 |
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- Compose rectangle. Used to configure scaling and composition. |
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- Yes |
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- Yes |
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* - ``V4L2_SEL_TGT_COMPOSE_DEFAULT`` |
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- 0x0101 |
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- Suggested composition rectangle that covers the "whole picture". |
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- Yes |
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- No |
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* - ``V4L2_SEL_TGT_COMPOSE_BOUNDS`` |
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- 0x0102 |
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- Bounds of the compose rectangle. All valid compose rectangles fit |
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inside the compose bounds rectangle. |
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- Yes |
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- Yes |
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* - ``V4L2_SEL_TGT_COMPOSE_PADDED`` |
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- 0x0103 |
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- The active area and all padding pixels that are inserted or |
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modified by hardware. |
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- Yes |
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- No |
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.. raw:: latex |
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\normalsize
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