Album Art not showing

[Wiggers]

I have Minim 2.2 installed on a Synology NAS and I use an Onkyo TX-NR818 to play tracks. I used to use Synology Audio Station as the DLNA server and that displayed album art. I then tried the free Minim server and there was no art being shown. I thought maybe I had to have the paid-for licence for that feature but it's still the same. I can see the art on my phone with HiFi Cast so why doesn't it appear on the Onkyo please?

[simoncn]

On what device is the album art missing? I don't think the TX-NR818 has a screen, so is it missing on some other device or app with a screen that can show artwork?

Is your artwork embedded in your audio files or in separate files (cover.jpg or folder.jpg)?

As you can see the artwork on HiFi Cast, it seems that MinimServer is working correctly. This means there is some incompatibility between the control device that you are using to browse your library and MinimServer. When you have the artwork problem, are you browsing your library directly from the Onkyo unit or using some other app?

[Wiggers]

The Onkyo is plugged into the TV via HDMI
The artwork is embedded in FLAC files
The strange thing is that Synology Audio Station shows the artwork but not Minim under similar conditions.

[simoncn]

Synology Audio Station is a control app, not a media server like MinimServer. The Synology media server is the Media Server package in Synology Package Center.

It sounds like the problem might be caused by the Onkyo not being able to process the artwork URL format that MinimServer uses for embedded artwork. Here is an example:

Code:

http://192.168.0.61:9790/minimserver/*/Music/musicfiles/4304852/07*20A*20Galliards*20Gygge.flac/$!picture-739-185802.jpg

The * $ and ! characters are all valid but some buggy software might have a problem handling these. In contrast, the artwork URL format for Synology Media Server is like this:

Code:

http://192.168.0.61:50002/transcoder/jpegtnscaler.cgi/ebdart/1901.jpg

which doesn't contain any * $ or ! characters.

HiFi Cast implements URL parsing correctly, so it can show MinimServer artwork.

[Wiggers]

I'm somewhat confused by these terms "control app" and "media server", I just want it to work!

If MinimServer is not a control app then how does the Onkyo connect to it, why does it appear in the list of devices?

[simoncn]

The Onkyo contains a UPnP control app which looks for UPnP media servers and shows a list of media servers that it has found on your network. HiFi Cast and Synology Audio Station are alternative UPnP control apps.

All UPnP control apps should work with all UPnP media servers but software bugs mean that some combinations have problems. In your setup, the following combinations work correctly to browse and play music and show artwork:

Onkyo with Synology media server
HiFi Cast with Synology media server
HiFi Cast with MinimServer
Synology Audio Station with Synology media server
Synology Audio Station with MinimServer

The combination of Onkyo with MinimServer doesn't work correctly with artwork images because of a fault in the Onkyo software. It isn't possible for MinimServer to work around this Onkyo fault.

[Wiggers]

Do you do a control app like Synology Audio Station, as I find that has its own problems. (e.g. Displays the FLAC file name instead of the Title) I prefer not to have my phone in the room when I'm listening, too distracting, so only use HiFi Cast for testing.

[simbun]

(Yesterday 09:47)simoncn Wrote:  The combination of Onkyo with MinimServer doesn't work correctly with artwork images because of a fault in the Onkyo software. It isn't possible for MinimServer to work around this Onkyo fault.

If the issue lies with the URL encoding - which I presume doesn't impact playback - then using BubbleUPnP Server to proxy MinimServer could help, or at the very least may help narrow down the problem.

MinimServer artwork URL:

Code:

http://<ip-address>:9790/minimserver/*/flac/Bowie,*20David/1985*20-*20Space*20Oddity/folder.jpg

Proxied URL:

Code:

http://<ip-address>:58050/stream/image/be85a8ee25c9c9eacc5dd9f1842d374d

[Wiggers]

I can see on the BubbleUPnP website that it has the, "Ability to fix some issues in UPnP/DLNA Media Servers by creating proxies" but I can't find any instructions for how one would do that. Can you point me in the right direction please?

[simbun]

(Yesterday 12:00)Wiggers Wrote:  I can see on the BubbleUPnP website that it has the, "Ability to fix some issues in UPnP/DLNA Media Servers by creating proxies" but I can't find any instructions for how one would do that. Can you point me in the right direction please?

https://bubblesoftapps.com/bubbleupnpser...rvers.html