35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 1c6c1ab42e61cdca555c85bdde5677b13b5cd5f3 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Fri, 6 Sep 2019 15:04:51 +0100
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Subject: [PATCH] v4l2: Add a Greyworld AWB mode.
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Adds a simple greyworld white balance preset, mainly for use
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with cameras without an IR filter (eg Raspberry Pi NoIR)
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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drivers/media/v4l2-core/v4l2-ctrls.c | 1 +
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include/uapi/linux/v4l2-controls.h | 1 +
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2 files changed, 2 insertions(+)
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--- a/drivers/media/v4l2-core/v4l2-ctrls.c
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+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
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@@ -275,6 +275,7 @@ const char * const *v4l2_ctrl_get_menu(u
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"Flash",
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"Cloudy",
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"Shade",
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+ "Greyworld",
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NULL,
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};
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static const char * const camera_iso_sensitivity_auto[] = {
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--- a/include/uapi/linux/v4l2-controls.h
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+++ b/include/uapi/linux/v4l2-controls.h
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@@ -886,6 +886,7 @@ enum v4l2_auto_n_preset_white_balance {
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V4L2_WHITE_BALANCE_FLASH = 7,
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V4L2_WHITE_BALANCE_CLOUDY = 8,
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V4L2_WHITE_BALANCE_SHADE = 9,
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+ V4L2_WHITE_BALANCE_GREYWORLD = 10,
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};
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#define V4L2_CID_WIDE_DYNAMIC_RANGE (V4L2_CID_CAMERA_CLASS_BASE+21)
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