ff

#!/bin/bash

get_time()
{
	time="$1"
	until [ $(echo $time | tr -cd ":" | wc -c) = 2 ]; do
		time="00:$time"
	done
}

output_name()
{
	file="$1"
	base=""${file%.*}""
	ext="${file##*.}"
	suffix="$2"
	[[ "$#" == 3 ]] && ext="$3"
	outname="$base-$suffix.$ext"
	count=1
	until ! [[ -f "$outname" ]]; do
		outname="$base-$suffix-$count.$ext"
		count=$(( count+1 ))
	done
	echo "$outname"
}

file="$1"
case "$2" in
	"-trim") 		ch="1";;
	"-conv") 		ch="2";;
	"-to-aud") 		ch="3";;
	"-inc-vol") 		ch="4";;
	"-rem-aud") 		ch="5";;
	"-add-aud") 		ch="6";;
	"-record") 		ch="7";;
	"-vid-gif") 		ch="8";;
	"-compress") 		ch="9";;
	"-merge-parts") 	ch="10";;
	"-join-vids")  		ch="11";;
	"-divide")   		ch="12";;
	"-add-img-to-aud")   	ch="13";;
esac
# else
# 	ch=$(echo -e	"\
# 		1 - Cut media\n\
# 		2 - Convert media\n\
# 		3 - Convert to audio\n\
# 		4 - Increase audio volume \n\
# 		5 - Remove audio from video\n\
# 		6 - Superimpose audio with video\n\
# 		7 - Record video from screen without audio\n\
# 		8 - Create animated gif from video\n\
# 		9 - Compress video\n\
# 		10 - Cut parts of video and merge them\n\
# 		11 - Join multiple videos\n\
# 		12 - Divide video into chunks of given time\n\
# 		13 - Overlay audio with images\n" \
# 		| fzf | awk '{print $1'})
# 	[[ "$ch" = '' ]] && exit
# fi
echo "$ch"
case $ch in
	"1") 	read -p "Enter start time:" st
		[ $(echo $time | tr -cd ":" | wc -c) = 1 ] && st="00:$st"
		read -p "Enter end time:" comm
		read -p "Enter output format:" outf
		total="ffmpeg -i \"$file\" -ss "$st" -to "$comm" -c copy $(output_name $file $outf)"
		;;
	"2")	read -p "Enter output format:" outf
		total="ffmpeg -i \"$file\" -c copy $(output_name $outf)"
		;;
	"3")	read -p "Enter output format:" outf
		total="ffmpeg -i \"$file\" $(output_name $outf)"
		;;
	"4")	read -p "Enter volume in dB:" vol
		vol="$vol"
		total="ffmpeg -i \"$file\"  -af "volume=${vol}dB" -c:v copy -c:a aac -b:a 192k $(output_name ${file##*.})"
		;;
	"5")	total="ffmpeg -i \"$file\" -c copy -an $(output_name ${file##*.})"
		;;
	"6")	read -p "Enter path of audio file:" audiof
		interim_file="$(mktemp --suffix '.'${file##*.})"
		total="ffmpeg -i \"$file\" -c copy -an "${interim_file}" && ffmpeg -i "${interim_file}" -i "$audiof" -shortest -c:v copy -c:a aac $(output_name ${file##*.})"
		;;
	"7")	total="ffmpeg -video_size 1920x1080 -framerate 30 -f x11grab -i :0.0+0,0 $(output_name 'mkv')"
		;;
	"8")	read -p "Enter start time:" st
		[ $(echo $time | tr -cd ":" | wc -c) = 1 ] && st="00:$st"
		read -p "Enter end time:" et
		if [ $(echo $et | tr -cd ":" | wc -c) = 0 ]; then
			comm="-t $et"
		else 
			[ $(echo $et | tr -cd ":" | wc -c) = 1 ] && et="00:$et"
			comm="-to $et"
		fi
		total="ffmpeg -ss $st "$comm" -i \"$file\" -vf \"fps=10,scale=640:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse\" -loop 10 $(output_name 'gif')"
		;;
	"9")	total="ffmpeg -i \"$file\" -vcodec libx265 -crf 28 -preset veryfast $(get_outname \"$file\" 'compressed')"
		;;
	"10")	read -p "Enter duration details file: " dfile
		echo "$dfile"
		echo "hi"
		allfile="$(mktemp)"
		while read line; do
			echo "$line"
			st=$(echo $line | awk '{print $1}')
			et=$(echo $line | awk '{print $2}')
			interim_file="$(mktemp --suffix '.'${file##*.})"
			echo "start"
			ffmpeg -y -i \"$file\" -ss "$st" -to "$et" -c copy "$interim_file" &
			echo "file	$interim_file" >> "$allfile"
		done < "$dfile"
		wait
		total="ffmpeg -f concat -safe 0 -i \"$allfile\" -c copy $(output_name ${file##*.})"
		;;
	"12")	read -p "Enter chunk duration (in seconds): " chunk
		dur=$(ffprobe -i "$file" -show_entries format=duration -v quiet -of csv="p=0" | cut -d '.' -f1)
		start=0
		counter=1
		while [[ $start -lt $dur ]]; do
			ffmpeg -i "$file" -ss $start -t $chunk "$file"_segment_"$counter".mp4
			start=$((start+chunk))
			counter=$((counter+1))
		done
		;;
	"13")	fpath="$3"
		outname="$4"
		ffmpeg -f concat -i "$fpath" -i "$file" -c:v libx264 -r 1 -pix_fmt yuv420p -c:a aac -strict experimental -shortest "$outname"
		exit
		;;
esac
read -p "$total"
eval "$total"