Script to convert videos to mp4 with Nautilus (Ubuntu’s file explorer)

In Ubuntu, nautilus has a folder where it stores scripts that can be executed from the context menu of the file explorer. This is the path to that folder:

~/.local/share/nautilus/scripts

To create a script that converts videos to mp4, create a file in that folder with the following content:

#!/bin/bash

for file in "$@"
do
    outputpath="/dev/shm"
    filename=$(basename "$file")
    basefilename="${filename%.*}"
    output="$outputpath/${basefilename}.mp4"

    ffmpeg -i "$file" -y \
        -vf "scale='bitand(oh*dar,65534)':'min(720,ih)'" \
        -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" \
        -c:v libx264 -pix_fmt yuv420p \
        -profile:v baseline -level 3.0 \
        "$output"\
        2> /dev/shm/convertToMP4.log

        # -acodec aac -ar 44100 -ac 2\
        # -movflags +faststart \
        # -minrate 1024k -maxrate 1024k -bufsize 1024k \
done

The name of the file will be the name of the script in the context menu. In this case, I named it Convert to MP4.