VLC Snap needs avahi-control plug to support Chromecast

Hi,

I have recently been using the VLC Snap from the Snapcraft store, and I have noticed that it does not correctly find Chromecast devices on the local network.

Issue Chromecast support is broken in the current VLC Snap.

Expected behaviour When navigating to “Playback > Renderer” inside VLC, it should find Chromecast-type devices on the local subnet.

Actual behaviour No Chromecast devices show up in the GUI but no error is visible there.

In a terminal, VLC complains about the lack of avahi daemon.

Output of snap run vlc when opening the “Playback > Renderer” menu:

[00007f12b8432d70] avahi renderer discovery error: failed to create avahi client: Daemon not running
[00007f12b8432d70] main renderer discovery error: no suitable renderer discovery module for 'avahi_renderer'

Fortunately, I believe this is an easy fix.

In the "plugs" stanza of the Snapcraft.yaml, the avahi-control interface should be connected and the Snap should be rebuilt with this new interface.

For some more info, I posted a similar thread over on the Snapcraft forum to discuss this.