Turning on/off replaygain for playlists.

[MarmiteSandwich]

Maybe someone has some experience with this. I couldn't find any references. I have a library containing a mixture of formats, bit rates and sampling rates, maintained using iTunes. I mainly use BubbleUPnP for control and the renderer is a WiiM, with a BubbleUPNP Server proxy, in order to take advantage of OpenHome features. Many of these tracks are arranged into playlists which I use often, but as you can imagine, the volume levels often vary widely, which is unwanted.

All the tracks in the playlists have had track replaygain applied, using foobar2000, and I have been using another feature of BubbleUPnP Server to apply the replaygain when required. This feature is causing me some problems, so I am experimenting with MinimServer/Streamer as a substitute. I have the transcoding and replaygain working with these parameters:-

Code:

/opt/bubbleupnpserver/ffmpeg
convOut=-af volume=replaygain=track
mp4:wav24/-, mp3:wav24/-, alac:wav24/-, aac:wav24/-

The problem is that I don't want replaygain on when not playing playlists. It would cause havoc with albums where some tracks are in playlists. I can use the configuration website to change profiles from transcoding/replaygain to no transcoding, but I then need to restart the server. The config website has restart buttons, but they seem to be permanently greyed out. I can use MinimWatch to restart, but this requires being at a PC. I would like to restart from a webpage, preferably the same one that I used to change the profile.

I also use OpenMediaVault to manage the server, which gives me the option to remotely submit stored linux scripts or console commands via the OMV webpage. Maybe there is a command which can change the profile, and one which can restart the server? That would be cool.

Any suggestions welcome.
Marmite.