Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 74 insertions, 0 deletions

diff --git a/Documentation/media/uapi/v4l/v4l2-selection-targets.rst b/Documentation/media/uapi/v4l/v4l2-selection-targets.rst
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+.. -*- coding: utf-8; mode: rst -*-
+
+.. _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:
+
+.. tabularcolumns:: |p{6.0cm}|p{1.4cm}|p{7.4cm}|p{1.2cm}|p{1.4cm}|
+
+.. 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".
+      - Yes
+      - No
+    * - ``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. Setting the
+	native size will generally only make sense for memory to memory
+	devices where the software can create a canvas of a given size in
+	which for example a video frame can be composed. In that case
+	V4L2_SEL_TGT_NATIVE_SIZE can be used to configure the size of
+	that canvas.
+      - 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