From 1fd985486ecae1184c8f868bd3818a127d72ebe7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Anton=20Luka=20=C5=A0ijanec?= <anton@sijanec.eu>
Date: Tue, 28 May 2024 21:11:37 +0200
Subject: videonadzor.sh

---
 skripti/videonadzor.sh | 100 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100755 skripti/videonadzor.sh

diff --git a/skripti/videonadzor.sh b/skripti/videonadzor.sh
new file mode 100755
index 0000000..3e6fa51
--- /dev/null
+++ b/skripti/videonadzor.sh
@@ -0,0 +1,100 @@
+#!/bin/bash
+# SKRIPT za snemanje kamere, katere firmware je example arduino sketch za ESP32CAM CameraWebServer
+# Neprestano zahteva JPEGe na /capture endpointu
+# Vsako minuto iz JPEGov naredi MKV in nato JPEGe izbriše
+# Vsako uro naredi iz MKVjev MP4 in nato MKVje izbriše
+set -uo pipefail
+q=4
+since=0
+rm -f concat.txt
+curl --no-progress-meter "$1/control?var=framesize&val=13"
+while :
+do
+	curl --no-progress-meter "$1/control?var=quality&val=$q"
+	t=`date --utc --iso-8601=ns | cut -d+ -f1`
+	oldstart=`ls --sort=time | grep jpeg$ | tail -n1 | cut -d: -f1,2`
+	if [ ! $oldstart = `cut -d: -f1,2 <<<"$t"` ] && [ ! -f concat.txt ]
+	then
+		echo "ffconcat version 1.0" > concat.txt
+		prev=devica
+		first=ERROR
+		for i in $oldstart:*.jpeg konec
+		do
+			if [ $prev = devica ]
+			then
+				first=$i
+				prev=$i
+				continue
+			fi
+			echo "file 'file:$prev'" >> concat.txt
+			if [ ! $i = konec ]
+			then
+		       		echo "duration 0`dc <<<"10k$(date --utc --date $(rev <<<"$i" | cut -d. -f2- | rev) +%s.%N) $(date --utc --date $(rev <<<"$prev" | cut -d. -f2- | rev) +%s.%N)"-p`" >> concat.txt
+			else
+				echo "duration 1" >> concat.txt
+			fi
+			prev=$i
+		done
+		{
+			ffmpeg -f concat -safe 0 -i concat.txt -fps_mode vfr file:$first.mkv
+			if [ -s $first.mkv ]
+			then
+				while read line
+				do
+					grep ^file <<<$line > /dev/null && rm `cut -d: -f2- <<<$line | cut -d\' -f1`
+				done < concat.txt
+			fi
+			oldstart=`ls --sort=time | grep mkv$ | tail -f1 | cut -d: -f1`
+			if [ ! $oldstart = `cut -d: -f1` <<<"$t" ]
+			then
+				echo "ffconcat version 1.0" > concat.txt
+				prev=devica
+				for i in $oldstart:*.mkv konec
+				do
+					if [ $prev = devica ]
+					then
+						prev=$i
+						continue
+					fi
+					echo "file 'file:$prev'" >> concat.txt
+					if [ ! $i = konec ]
+					then
+		       				echo "duration 0`dc <<<"10k$(date --utc --date $(rev <<<"$i" | cut -d. -f2- | rev) +%s.%N) $(date --utc --date $(rev <<<"$prev" | cut -d. -f2- | rev) +%s.%N)"-p`" >> concat.txt
+					fi
+					prev=$i
+				done
+				ffmpeg -f concat -safe 0 -i concat.txt -fps_mode vfr file:$oldstart.mp4
+				if [ -s $oldstart.mp4 ]
+				then
+					while read line
+					do
+						grep ^file <<<$line > /dev/null && rm `cut -d: -f2- <<<$line | cut -d\' -f1`
+					done < concat.txt
+				fi
+			fi
+			rm concat.txt
+		} &
+	fi
+	curl --no-progress-meter --fail -o$t.jpeg $1/capture
+	curlexit=$?
+	if [ $curlexit -eq 22 ]
+	then
+		q=$(($q+1))
+		echo "Setting quality to $q"
+		continue
+	fi
+	if [ ! $curlexit -eq 0 ]
+	then
+		echo ERROR!!! Curl returned with $curlexit
+		continue
+	fi
+	if [ $since -ge 1024 ] && [ $q -gt 4 ]
+	then
+		q=$(($q-1))
+	fi
+	if [ ! `file $t.jpeg | grep -o [1-9][0-9]*x[1-9][0-9]*` = 1600x1200 ]
+	then
+		echo Popravljam ločljivost.
+		curl --no-progress-meter "$1/control?var=framesize&val=13"
+	fi
+done
-- 
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