From d431b4bc3be8fe330c56b9a6ef191aec71b88499 Mon Sep 17 00:00:00 2001
From: dchvs <daniel.chaves@ridgerun.com>
Date: Thu, 4 Mar 2021 06:22:22 -0600
Subject: [PATCH] Add script to control AE on sensor-id=0

---
 script_to_control_gain_exposure.sh | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 script_to_control_gain_exposure.sh

diff --git a/script_to_control_gain_exposure.sh b/script_to_control_gain_exposure.sh
new file mode 100755
index 0000000..29cc4ad
--- /dev/null
+++ b/script_to_control_gain_exposure.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+initial_gain=0
+initial_exposure_time=0
+
+while true; do sleep 0.5;
+	# Read center camera controls
+	echo `v4l2-ctl -d /dev/video1 --get-ctrl=gain --get-ctrl=exposure` > controls
+	awk '{print $2}' controls > get_control
+	actual_gain=`cat get_control`
+	awk '{print $4}' controls > get_control
+	actual_exposure_time=`cat get_control`
+	
+	# Print controls	
+	#echo -e "\n**Center Camera Controls**"	
+	#cat controls
+	# Remove temp files
+	rm controls get_control
+	# Set R/L camera controls manually
+	if [ $actual_gain -ne $initial_gain ]; then
+                v4l2-ctl -d /dev/video0 --set-ctrl=gain=$actual_gain
+        fi
+	if [ $actual_exposure_time -ne $initial_exposure_time ]; then
+                v4l2-ctl -d /dev/video0 --set-ctrl=exposure=$actual_exposure_time
+        fi
+	# Define new initial value
+	initial_gain=$actual_gain
+	initial_exposure_time=$actual_exposure_time
+done