#!/bin/bash
if [[ "$1" == '' ]]; then
	if [[ "$0" != *"bench.sh" ]]; then
		echo "usage: $0 bench <path_to_ffmpeg>"
	else
		echo "usage: $0 <path_to_ffmpeg>"
	fi
	exit 1
fi
res=()
uwu=0

function count() {
	x=0
	for (( i=0; i<${#res[@]}; i++ )); do
		x=$((x+${res[i]}))
	done
	uwu=$((uwu+$((x/${#res[@]}))))
	echo "$((x/${#res[@]}))"
	res=()
}

function invoke() {
	( time $@ ) 2>&1 | grep -a real | grep -aPoh "[^(real\t0m\.)].*[^s]"
}



echo "FFmpeg launch benchmark"
echo -n "Burst... "

for (( i=0; i<100; i++ )); do
	res+=($(invoke $1))
done
count

echo -n "Set sleep... "
for (( i=0; i<25; i++ )); do
	res+=($(invoke $1))
	sleep 0.1
done
count

echo -n "Random sleep... "
for (( i=0; i<25; i++ )); do
	res+=($(invoke $1))
	sleep 0.$((RANDOM%10))
done
count

echo "yeah, try $((uwu/3))"