ffmpeg video transcoding from Nautilus

I want to share this little video conversion script for the GNOME file manager Nautilus. As Nautilus supports custom scripts being executed for selected files I wrote a script to do allow video transcoding from Nautilus.

How it looks like

Once installed you get a new menu item like this

when you start the script (and have zenity installed) it will prompt you for a transcoding profile:

The list of profiles is hard-coded in the script, but should be easy to extend.

How to install it

Place the following script in ~/.local/share/nautilus/scripts/ffmpeg-convert.sh and run chmod a+x on it.

#!/bin/bash

profiles="\
mp4_h264_400k_aac_128k
mp4_h264_600k_aac_128k
mp4_h264_1000k_aac_128k
mp3_128k"

# If zenity is installed prompt for parameters
if command -v zenity >/dev/null; then
	profile=$(zenity --width=480 --title="ffmpeg convert" \
		--text="Transcoding Profile" \
      		--entry \
      		--entry-text=$profiles
	)
	if [ $? -ne 0 ]; then
		exit	# On Zenity 'Cancel'
	fi
fi 

# If zenity failed/missing use default (first option)
if [ "$profile" = "" ]; then
	profile=$(echo "$options" | head -1)
fi

# Build options
case "$profile" in
	mp3_128k)
		options="-vn -acodec mp3 -b:a 128k"
		extension=mp3
	;;
	*)
		profile="${profile//_/ }"
		set -- ${profile}
		options="-vcodec $2 -b:v $3 -acodec $4 -b:a $5"
		extension=$1
	;;
esac

while read file; do
	output="${file/\.*/.}$extension"

	echo ffmpeg -y -i "$file" $options "$output"
	if ffmpeg -y -i "$file" $options "$output"; then
		notify-send "Ready: '$(basename "$output")'"
	else
		notify-send "Converting '$file' failed!"
	fi
done < <(echo "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS")