ffconv

#!/bin/bash

script_name=${0##*/}
base_file=$1
output_file=$2

[ -z "$base_file" ] || [ -z "$output_file" ] && printf "%s\n%s\n" "$script_name: not enough arguments." "Usage: $script_name <file> <output>" 2>&1 && exit 1
file --mime-type -b "$base_file" | grep -oq "video" || printf "%s\n" "File is not a video" 2>&1 && exit 1


# Get file extension
output_ext=${output_file##*.}
printf "%s\n" "$output_ext"

# Encode the video based on the extension
case $output_ext in
    webm)
        ffmpeg -i "$base_file" -c:v libvpx -qmin 20 -qmax 40 -crf 28 -b:v 1M -c:a libvorbis -map 0 "$output_file"
        ;;
    mp4)
        ffmpeg -i "$base_file" -pix_fmt "yuv420p" -vsync 1 -threads 0 -c:v "libx264" -crf 23 -preset "veryfast" -tune "film" -c:a "aac" -c:s "mov_text" -map 0:v -map 0:a -map 0:s?  -movflags "+faststart" "$output_file"
        ;;
esac