encode_to_webm.sh

#!/bin/bash


if [ $# -eq 0 ]
then
	echo "No arguments supplied"
	exit 1
fi
FPS=$2
if [ -z "$2" ]
then
	echo "FPS not specified! Defaulting to 30!"
	FPS=30
fi
MB=$3
if [ -z "$3" ]
then
	echo "Filesize not specified! Defaulting to 7.5!"
	MB=7.5
fi

echo $1
LOGLEVEL=info
SIZE=$MB*8000
DURATION=$(ffprobe -i $1 -show_entries format=duration -v quiet -of csv="p=0")
BITRATE=$(echo ${SIZE} / ${DURATION} | bc)

echo "Bitrate:" $BITRATE
echo "Duration": $DURATION

ffmpeg -hide_banner -loglevel $LOGLEVEL -y -i $1 -c:v libvpx-vp9 -row-mt 1 -b:v ${BITRATE}k -deadline good -frame-parallel 1 -vf scale=1920:1080 -tile-columns 6 -threads 15 -pass 1 -r $FPS -f webm /dev/null && \
ffmpeg -hide_banner -loglevel $LOGLEVEL -i $1 -c:v libvpx-vp9 -row-mt 1 -b:v ${BITRATE}k -deadline good -frame-parallel 1 -vf scale=1920:1080 -tile-columns 6 -speed 1 -threads 15 -pass 2 -r $FPS ${1%.*}.webm