Audio Files and MIME Types

To play all audio formats supported by Audio Player, it can be necessary to add unknown formats to ownCloud/Nextcloud. The formats .m4a and .m4b were added in ownCloud/Nextcloud 9.1.0.
Playing the formats supported by Audio Player depends on the browser.

Add Custom MIME Types

By default ownCloud/Nextcloud is distributed with resources/config/mimetypemapping.dist.json. Do not modify this file, as it will be replaced when ownCloud/Nextcloud is updated. Instead, create your own config/mimetypemapping.json file and add your own MIME types.

After that you have to update the table *PREFIX*mimetypes with the newly added MIME types and correct the file mappings in the table *PREFIX*filecache with occ command ./occ maintenance:mimetype:update-db --repair-filecache as well as the core/js/mimetypelist.js with command ./occ maintenance:mimetype:update-js.

Content of mimetypemapping.json

{
	…
	"flac": ["audio/flac"],
	"m4a": ["audio/mp4"],
	"m4b": ["audio/mp4"],
	"mp3": ["audio/mpeg"],
	"ogg": ["audio/ogg"],
	"opus": ["audio/ogg"],
	"wav": ["audio/wav"],
}

Not yet supported by Audio Player

{
	…
	"m3u": ["audio/mpegurl", "text/plain"],
	"m3u8": ["audio/mpegurl", "text/plain"],
	"pls": ["audio/x-scpls", "text/plain"],
	"xspf": ["application/xspf+xml", "text/plain"],
}

Browser Support

To evaluate your browser capabilities, go to the personal settings of your cloud and select the Audio Player section. It will show the MIME types depending on your current browser.
In case your browser does not support a MIME type which is indexed by Audio Player, the title is still shown, will be highlighted in a different font style and can not be played.

• FLAC audio format is supported since Mozilla Firefox 51 and Google Chrome 56.
• Samsung Internet (SamsungBrowser/5.2) does not support FLAC because it based currently on Chrome 51.

To be continued …