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A helper script to set a default media player in Linux
#!/usr/bin/env bash
help_string=$(cat <<EOF
Usage: $0 [-h|-l] APPLICATION
Set a video player as the default.
Example:
# List candidate desktop files for media players.
$0 -l
# Pick one and set it as the default.
$0 mpv.desktop
See Also:
<https://specifications.freedesktop.org/mime-apps-spec/latest/index.html>
EOF
)
hash xdg-mime || {
echo "$0: xdg-mime is required to run this script (usually provided by xdg-utils package)."
exit 127
}
desktop_path=(/usr/share/applications /usr/local/share/applications)
desktop=$1
if ! [[ ${desktop} =~ .desktop$ ]]; then
echo -e "${help_string}\n"
>&2 echo "$0: Expected a *.desktop file for the first argument."
exit 1
fi
list_media_players() {
for desktop_dir in ${desktop_path[@]}; do
entries=$(find ${desktop_dir} -name "*.desktop")
if [[ $? != 0 ]]; then
exit $?
fi
for entry in ${entries[@]}; do
if [[ ! -f ${entry} ]]; then
continue
fi
grep -qE '^MimeType=.*video\/|MimeType=.*audio\/' ${entry}
if [[ $? = 0 ]]; then
echo $(basename ${entry})
fi
done
done
}
if [[ -z ${desktop} ]] || [[ ${desktop} = "-h" ]] || [[ ${desktop} = "--help" ]]; then
echo "$help_string"
exit 0
fi
if [[ ${desktop} = "-l" ]]; then
list_media_players
exit 0
fi
found=0
for desktop_dir in ${desktop_path[@]}; do
if [[ -n $(find ${desktop_dir} -name ${desktop}) ]]; then
found=1
break
fi
done
if [[ ${found} == 0 ]]; then
>&2 echo "$0: WARNING: desktop file does not exist: ${desktop}"
fi
mimetypes=(
application/ogg application/x-ogg application/mxf application/sdp
application/smil application/x-smil application/streamingmedia
application/x-streamingmedia application/vnd.rn-realmedia
application/vnd.rn-realmedia-vbr audio/aac audio/x-aac
audio/vnd.dolby.heaac.1 audio/vnd.dolby.heaac.2 audio/aiff audio/x-aiff
audio/m4a audio/x-m4a application/x-extension-m4a audio/mp1 audio/x-mp1
audio/mp2 audio/x-mp2 audio/mp3 audio/x-mp3 audio/mpeg audio/mpeg2
audio/mpeg3 audio/mpegurl audio/x-mpegurl audio/mpg audio/x-mpg
audio/rn-mpeg audio/musepack audio/x-musepack audio/ogg audio/scpls
audio/x-scpls audio/vnd.rn-realaudio audio/wav audio/x-pn-wav
audio/x-pn-windows-pcm audio/x-realaudio audio/x-pn-realaudio
audio/x-ms-wma audio/x-pls audio/x-wav video/mpeg video/x-mpeg2
video/x-mpeg3 video/mp4v-es video/x-m4v video/mp4
application/x-extension-mp4 video/divx video/vnd.divx video/msvideo
video/x-msvideo video/ogg video/quicktime video/vnd.rn-realvideo
video/x-ms-afs video/x-ms-asf audio/x-ms-asf application/vnd.ms-asf
video/x-ms-wmv video/x-ms-wmx video/x-ms-wvxvideo video/x-avi video/avi
video/x-flic video/fli video/x-flc video/flv video/x-flv video/x-theora
video/x-theora+ogg video/x-matroska video/mkv audio/x-matroska
application/x-matroska video/webm audio/webm audio/vorbis audio/x-vorbis
audio/x-vorbis+ogg video/x-ogm video/x-ogm+ogg application/x-ogm
application/x-ogm-audio application/x-ogm-video application/x-shorten
audio/x-shorten audio/x-ape audio/x-wavpack audio/x-tta audio/AMR audio/ac3
audio/eac3 audio/amr-wb video/mp2t audio/flac audio/mp4
application/x-mpegurl video/vnd.mpegurl application/vnd.apple.mpegurl
audio/x-pn-au video/3gp video/3gpp video/3gpp2 audio/3gpp audio/3gpp2
video/dv audio/dv audio/opus audio/vnd.dts audio/vnd.dts.hd audio/x-adpcm
application/x-cue audio/m3u
)
xdg-mime default ${desktop} ${mimetypes[@]}
exit $?
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