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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
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Adding upstream version 6.1.76.upstream/6.1.76
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+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+
+.. _v4l2-selection-targets:
+
+*****************
+Selection targets
+*****************
+
+The precise meaning of the selection targets may be dependent on which
+of the two interfaces they are used.
+
+
+.. _v4l2-selection-targets-table:
+
+.. raw:: latex
+
+ \small
+
+.. tabularcolumns:: |p{6.2cm}|p{1.4cm}|p{7.3cm}|p{1.2cm}|p{0.8cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: Selection target definitions
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Target name
+ - id
+ - Definition
+ - Valid for V4L2
+ - Valid for V4L2 subdev
+ * - ``V4L2_SEL_TGT_CROP``
+ - 0x0000
+ - Crop rectangle. Defines the cropped area.
+ - Yes
+ - Yes
+ * - ``V4L2_SEL_TGT_CROP_DEFAULT``
+ - 0x0001
+ - Suggested cropping rectangle that covers the "whole picture".
+ This includes only active pixels and excludes other non-active
+ pixels such as black pixels.
+ - Yes
+ - Yes
+ * - ``V4L2_SEL_TGT_CROP_BOUNDS``
+ - 0x0002
+ - Bounds of the crop rectangle. All valid crop rectangles fit inside
+ the crop bounds rectangle.
+ - Yes
+ - Yes
+ * - ``V4L2_SEL_TGT_NATIVE_SIZE``
+ - 0x0003
+ - The native size of the device, e.g. a sensor's pixel array.
+ ``left`` and ``top`` fields are zero for this target.
+ - Yes
+ - Yes
+ * - ``V4L2_SEL_TGT_COMPOSE``
+ - 0x0100
+ - Compose rectangle. Used to configure scaling and composition.
+ - Yes
+ - Yes
+ * - ``V4L2_SEL_TGT_COMPOSE_DEFAULT``
+ - 0x0101
+ - Suggested composition rectangle that covers the "whole picture".
+ - Yes
+ - No
+ * - ``V4L2_SEL_TGT_COMPOSE_BOUNDS``
+ - 0x0102
+ - Bounds of the compose rectangle. All valid compose rectangles fit
+ inside the compose bounds rectangle.
+ - Yes
+ - Yes
+ * - ``V4L2_SEL_TGT_COMPOSE_PADDED``
+ - 0x0103
+ - The active area and all padding pixels that are inserted or
+ modified by hardware.
+ - Yes
+ - No
+
+.. raw:: latex
+
+ \normalsize