super-timelapse.sh

#!/bin/bash

# a script to make great time lapses from the narrative clip. 
# copy files to safe place, iterate through with ls-v, use spinners
# find a .mp4, rename the files, make a timelapse with the files (use spinners and headless ffmpeg)
# And then turn into ts files? delete videos in progress? Less ram/storage better! 
#convert videos to better files with ffmpeg
# concatenate all the ts files, be sure to specify codec
# clean up. 

RATE=8
OUTPUTNUM=0
function verboseprint {
	if [[ $VERBOSE == 1 ]]; then
		echo $1
	fi
}

function spinner {
	pid=$2 # Process Id of the previous running command

	spin='-\|/'

	i=0
	while kill -0 $pid 2>/dev/null
	do
		i=$(( (i+1) %4 ))
		printf "\r$1${spin:$i:1}"
		sleep .1
	done
	echo ''
}

function makemoviefromframes {
	verboseprint "makemoviefromframes called with lastfile of $1"
	i=0

	for file2 in `ls -v ${FILES}-tmp/`; do
		verboseprint "comparing $file2 to $1"
		printf -v j "%05d" $i
		if [[ $VERBOSE == 1 ]]; then
			mv -v ${FILES}-tmp/$file2 ${FILES}-tmp/`printf frame%05d.jpg $((10#$j))`
		else
			mv  ${FILES}-tmp/$file2 ${FILES}-tmp/`printf frame%05d.jpg $((10#$j))`
		fi
		if [[ $file2 == $1 ]]; then
			verboseprint "BREAKING ON LAST FILE"
			break;
		fi
		if [[ -d ${FILES}-tmp/$file2  ]]; then
			verboseprint "BREAKING ON directory"
			break;
		fi
		i=$((i+1))
	done
	if [ ! -d "${FILES}-tmp/output/" ]; then
		mkdir ${FILES}-tmp/output/
	fi
	if [[ $VERBOSE == 1 ]]; then
		ffmpeg -r $RATE -i $FILES-tmp/frame%05d.jpg -f lavfi -i anullsrc=r=48000 -s 2448x3264 -vcodec libx264 -vf "transpose=2" -pix_fmt yuv420p -shortest ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 

		rm ${FILES}-tmp/frame*.jpg
		ffmpeg   -i ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts ${FILES}-tmp/output/output${OUTPUTNUM}.ts 
		
	else
		ffmpeg -loglevel panic -hide_banner -r $RATE -i $FILES-tmp/frame%05d.jpg -f lavfi -i anullsrc=r=48000 -s 2448x3264 -vcodec libx264 -vf "transpose=2" -pix_fmt yuv420p -shortest ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 &
		spinner "making movie $OUTPUTNUM from frames" $!
		rm ${FILES}-tmp/frame*.jpg
		ffmpeg  -loglevel panic -hide_banner -i ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts ${FILES}-tmp/output/output${OUTPUTNUM}.ts &
		spinner "converting video $OUTPUTNUM to .ts" $!
		rm ${FILES}-tmp/output/output${OUTPUTNUM}.mp4
	fi


	OUTPUTNUM=$((OUTPUTNUM+1))


}
function makemoviefrommovie {
	if [[ $VERBOSE == 1 ]]; then
		ffmpeg   -i ${FILES}-tmp/${1} -vf "scale=(iw*sar)*min(2448/(iw*sar)\,3264/ih):ih*min(2448/(iw*sar)\,3264/ih), pad=2448:3264:(2448-iw*min(2448/iw\,3264/ih))/2:(3264-ih*min(2448/iw\,3264/ih))/2" ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 

		ffmpeg  -i ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts ${FILES}-tmp/output/output${OUTPUTNUM}.ts 
		rm -v ${FILES}-tmp/${1}
		rm -v ${FILES}-tmp/output/output${OUTPUTNUM}.mp4
	else
		ffmpeg  -loglevel panic -hide_banner -i ${FILES}-tmp/${1} -vf "scale=(iw*sar)*min(2448/(iw*sar)\,3264/ih):ih*min(2448/(iw*sar)\,3264/ih), pad=2448:3264:(2448-iw*min(2448/iw\,3264/ih))/2:(3264-ih*min(2448/iw\,3264/ih))/2" ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 &
		spinner "making movie $OUTPUTNUM from $1" $!

		ffmpeg -loglevel panic -hide_banner -i ${FILES}-tmp/output/output${OUTPUTNUM}.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts ${FILES}-tmp/output/output${OUTPUTNUM}.ts &
		spinner "making ts $OUTPUTNUM from $1" $!
		rm  ${FILES}-tmp/${1}
		rm ${FILES}-tmp/output/output${OUTPUTNUM}.mp4
	fi
	
	OUTPUTNUM=$((OUTPUTNUM+1))
}


while getopts ":p:vr:" opt; do
	case $opt in
		p)
verboseprint "-p: working in $OPTARG" >&2
FILES=$OPTARG
;;
v)
echo "-v:turning on verbose mode"
VERBOSE=1	
;;	
r)
verboseprint "-r:Setting rate to $OPTARG"
RATE=$OPTARG
;;
\?)
echo "Invalid option: -$OPTARG" >&2
exit 1
;;
:)
echo "Option -$OPTARG requires an argument." >&2
exit 1
;;
esac
done


if [ -d "${FILES}-tmp/" ]; then
	verboseprint 'deleting old work'
	rm -r ${FILES}-tmp/
fi

mkdir ${FILES}-tmp/
if [[ $VERBOSE == 1 ]]; then
	# cp -v $FILES/* ${FILES}-tmp/ &
	(find $FILES/  -exec cp -v {} ${FILES}-tmp/ \;) 
else
	# cp $FILES/* ${FILES}-tmp/ &
	(find $FILES/  -exec cp {} ${FILES}-tmp/ \;) &
	spinner "copying files to temporary directory $FILES-tmp/\b" $!
fi



FIRSTFILE=null
LASTFILE=null

for file in `ls -v ${FILES}-tmp/`; do
	if [[ $file == 'output' ]]; then
		break
	fi
	verboseprint "Evaluating $file"
	if [[ $file == *.jpg ]]; then
		# if [[ $FIRSTFILE == null]]; then
		# 	$FIRSTFILE
		# fi
		LASTFILE=$file
		#statements
	fi
	if [[ $file != *.jpg ]]; then
		echo "$file is not an image"
		verboseprint "stopeed on $file"
		if [[ $LASTFILE != null ]]; then
			makemoviefromframes $LASTFILE
			LASTFILE=null
		fi

		if [[ $file == *.mp4 ]]; then
			makemoviefrommovie $file
		fi
		continue;

	fi
done
if [[ $LASTFILE != null ]]; then
	makemoviefromframes $LASTFILE
fi
# echo 'concatenating'
# echo $FILES
# echo "concat:$(ls -v -1 ${FILES}-tmp/output/*.ts | perl -0pe 's/\n/|/g;s/\|${FILES}-tmp/output/$//g')"
ffmpeg -loglevel panic -hide_banner -i "concat:$(ls -v -1 ${FILES}-tmp/output/*.ts | sort -n -k1.71 | perl -0pe 's/\n/|/g;s/\|${FILES}-tmp\/output\/$//g')" -c:v copy -c:a libfdk_aac -bsf:a aac_adtstoasc ${FILES}-tmp/output/outputfile.mp4 &
spinner "concatenating files" $!
echo "All Done!"
# echo cleaning up output files
# rm ${FILES}-tmp/output/*.ts

#ffmpeg -loglevel panic -hide_banner -i "concat:$(ls -v -1 /Users/tristans/Desktop/video-scratch/megajapanlapse-tmp/output/*.ts | sort -n -k1.71 | perl -0pe 's/\n/|/g;s/\|\/Users\/tristans\/Desktop\/video-scratch\/megajapanlapse-tmp\/output\/$//g')" -c:v copy -c:a libfdk_aac -bsf:a aac_adtstoasc /Users/tristans/Desktop/video-scratch/megajapanlapse-tmp/output/outputfile2.mp4

make sure to use the -p (path) flag or else it won't work at all. perl doesn't seem to work on zsh or new macbooks, so ffmpeg -i "concat:/Users/tristansokol/Pictures/laborlapse-tmp/output/output1.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output2.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output3.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output4.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output5.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output6.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output7.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output8.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output9.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output10.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output11.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output12.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output13.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output14.ts|/Users/tristansokol/Pictures/laborlapse-tmp/output/output15.ts" -c:v copy -c:a aac -bsf:a aac_adtstoasc /Users/tristansokol/Pictures/laborlapse-tmp/output/outputfile.mp4