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#!/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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