Timelapse Capture

lathamview.sh

#!/bin/bash -e

basedir=$1
capturetime="${2:-5}"
ffmpeg="${3:-ffmpeg}"

function usage {
	echo "$0 BASEDIR [CAPTURE_TIME [FFMPEG_PATH]]"
	exit 1
}

if [[ -z "$basedir" ]]; then
	usage
fi

streams=(
	back@rtsp://...
	front@rtsp://...
	driveway@rtsp://...
)

timestamp=$(date +"%Y-%m-%d_%H.%M.%S")
datepath=${timestamp%_*}
datepath=${datepath//-/\/}

waitpids=()

for stream in "${streams[@]}"; do
	stream_name=${stream%@*}
	stream_uri=${stream#*@}

	outdir="${basedir}/${stream_name}/${datepath}"
	outfile="${outdir}/${stream_name}-${timestamp}"
	logfile="${outfile}.log"
	outfile="${outfile}.mp4"

	mkdir -p "$outdir"

	echo "Recording ${capturetime}s to ${outfile}"

	"$ffmpeg" \
		-hide_banner \
		-rtsp_transport tcp \
		-i "$stream_uri" \
		-c copy \
		-flags +global_header \
		-t "$capturetime" \
		-reset_timestamps 1 \
		"$outfile" \
		&>"$logfile" \
		&

	waitpids+=($!)
done

for pid in "${waitpids[@]}"; do
	wait "$pid"
done

x-crontab

*/10    *   *   *   *   root    sudo -u aaron /var/services/homes/aaron/lathamview.sh /volume1/LathamViewData 5 /volume1/@appstore/ffmpeg/bin/ffmpeg