From 9a38078c728de413cf02ecb0857c89c471e3a2b7 Mon Sep 17 00:00:00 2001
From: Devaev Maxim <mdevaev@gmail.com>
Date: Tue, 5 Mar 2019 10:47:43 +0300
Subject: [PATCH] Added backlight_compensation, white_balance and gain

---
 src/device.c | 15 +++++++++------
 src/device.h |  3 +++
 src/main.c   | 31 +++++++++++++++++++++++--------
 3 files changed, 35 insertions(+), 14 deletions(-)

diff --git a/src/device.c b/src/device.c
index 5ef620c..0f48cd0 100644
--- a/src/device.c
+++ b/src/device.c
@@ -383,12 +383,15 @@ static void _device_open_set_image_settings(struct device_t *dev) {
 			} \
 		}
 
-	SET_CID_AUTO	(V4L2_CID_AUTOBRIGHTNESS,	V4L2_CID_BRIGHTNESS,	brightness);
-	SET_CID_MANUAL	(							V4L2_CID_CONTRAST,		contrast);
-	SET_CID_MANUAL	(							V4L2_CID_SATURATION,	saturation);
-	SET_CID_AUTO	(V4L2_CID_HUE_AUTO,			V4L2_CID_HUE,			hue);
-	SET_CID_MANUAL	(							V4L2_CID_GAMMA,			gamma);
-	SET_CID_MANUAL	(							V4L2_CID_SHARPNESS,		sharpness);
+	SET_CID_AUTO	(V4L2_CID_AUTOBRIGHTNESS,		V4L2_CID_BRIGHTNESS,				brightness);
+	SET_CID_MANUAL	(								V4L2_CID_CONTRAST,					contrast);
+	SET_CID_MANUAL	(								V4L2_CID_SATURATION,				saturation);
+	SET_CID_AUTO	(V4L2_CID_HUE_AUTO,				V4L2_CID_HUE,						hue);
+	SET_CID_MANUAL	(								V4L2_CID_GAMMA,						gamma);
+	SET_CID_MANUAL	(								V4L2_CID_SHARPNESS,					sharpness);
+	SET_CID_MANUAL	(								V4L2_CID_BACKLIGHT_COMPENSATION,	backlight_compensation);
+	SET_CID_AUTO	(V4L2_CID_AUTO_WHITE_BALANCE,	V4L2_CID_WHITE_BALANCE_TEMPERATURE,	white_balance);
+	SET_CID_AUTO	(V4L2_CID_AUTOGAIN,				V4L2_CID_GAIN,						gain);
 
 #	undef SET_CID_AUTO
 #	undef SET_CID_MANUAL
diff --git a/src/device.h b/src/device.h
index cc6e007..d6742df 100644
--- a/src/device.h
+++ b/src/device.h
@@ -79,6 +79,9 @@ struct image_settings_t {
 	S_AUTO		(hue);
 	S_MANUAL	(gamma);
 	S_MANUAL	(sharpness);
+	S_MANUAL	(backlight_compensation);
+	S_AUTO		(white_balance);
+	S_AUTO		(gain);
 };
 
 #undef S_AUTO
diff --git a/src/main.c b/src/main.c
index 43a4e18..758aa50 100644
--- a/src/main.c
+++ b/src/main.c
@@ -68,6 +68,11 @@ static const struct option _long_opts[] = {
 	{"image-hue-auto",			no_argument,		NULL,	2005},
 	{"image-gamma",				required_argument,	NULL,	2006},
 	{"image-sharpness",			required_argument,	NULL,	2007},
+	{"image-backlight-compensation",	required_argument,	NULL,	2008},
+	{"image-white-balance",				required_argument,	NULL,	2009},
+	{"image-white-balance-auto",		no_argument,		NULL,	2010},
+	{"image-gain",						required_argument,	NULL,	2011},
+	{"image-gain-auto",					no_argument,		NULL,	2012},
 
 	{"host",					required_argument,	NULL,	's'},
 	{"port",					required_argument,	NULL,	'p'},
@@ -133,14 +138,19 @@ static void _help(struct device_t *dev, struct encoder_t *encoder, struct http_s
 	printf("                                        after a timeout. Default: %u\n\n", dev->error_delay);
 	printf("Image options:\n");
 	printf("---------------\n");
-	printf("    --image-brightness <N>  -- Set brightness. Default: no change.\n\n");
-	printf("    --image-brightness-auto -- Enable automatic brightness control. Default: no change.\n\n");
-	printf("    --image-contrast <N>    -- Set contrast. Default: no change.\n\n");
-	printf("    --image-saturation <N>  -- Set saturation. Default: no change.\n\n");
-	printf("    --image-hue <N>         -- Set hue. Default: no change.\n\n");
-	printf("    --image-hue-auto        -- Enable automatic hue control. Default: no change.\n\n");
-	printf("    --image-gamma <N>       -- Set gamma. Default: no change.\n\n");
-	printf("    --image-sharpness <N>   -- Set sharpness. Default: no change.\n\n");
+	printf("    --image-brightness <N>             -- Set brightness. Default: no change.\n\n");
+	printf("    --image-brightness-auto            -- Enable automatic brightness control. Default: no change.\n\n");
+	printf("    --image-contrast <N>               -- Set contrast. Default: no change.\n\n");
+	printf("    --image-saturation <N>             -- Set saturation. Default: no change.\n\n");
+	printf("    --image-hue <N>                    -- Set hue. Default: no change.\n\n");
+	printf("    --image-hue-auto                   -- Enable automatic hue control. Default: no change.\n\n");
+	printf("    --image-gamma <N>                  -- Set gamma. Default: no change.\n\n");
+	printf("    --image-sharpness <N>              -- Set sharpness. Default: no change.\n\n");
+	printf("    --image-backlight-compensation <N> -- Set backlight compensation. Default: no change.\n\n");
+	printf("    --image-white-combalance <N>       -- Set white balance. Default: no change.\n\n");
+	printf("    --image-white-combalance-auto      -- Enable automatic white balance control. Default: no change.\n\n");
+	printf("    --image-gain <N>                   -- Set gain. Default: no change.\n\n");
+	printf("    --image-gain-auto                  -- Enable automatic gain control. Default: no change.\n\n");
 	printf("HTTP server options:\n");
 	printf("--------------------\n");
 	printf("    -s|--host <address>        -- Listen on Hostname or IP. Default: %s\n\n", server->host);
@@ -241,6 +251,11 @@ static int _parse_options(int argc, char *argv[], struct device_t *dev, struct e
 			case 2005:	OPT_IMG_AUTO(hue);
 			case 2006:	OPT_IMG(gamma);
 			case 2007:	OPT_IMG(sharpness);
+			case 2008:	OPT_IMG(backlight_compensation);
+			case 2009:	OPT_IMG(white_balance);
+			case 2010:	OPT_IMG_AUTO(white_balance);
+			case 2011:	OPT_IMG(gain);
+			case 2012:	OPT_IMG_AUTO(gain);
 
 			case 's':	OPT_SET(server->host, optarg);
 			case 'p':	OPT_UNSIGNED(server->port, "--port", 1, 65535);