Wrong title order in playlist after using Group tag

[simoncn]

(16-11-2013 10:26)ruckmann Wrote:  Hi Simon,

thanks a lot for your quick answer.

First of all, may my description was not 100% accurate. The phenomena describes appears if tell my control Point "Play selected Album".

Yes, you are right. I just checked it. Behaviour is depending on the control point in use. The behaviour described above appears with "Audionet aMM", but not with Bubble UPNP.

But, what I do not understand: How can the control point distinguish between grouped and ungrouped titles? Does it get any information about grouping? My assumption was that it gets a sequence of tracks/titles (including track no.?) and it shows and plays tracks/titles in that respective order. Therefore, my conclusion was the minimserver sends the track sequence in an order depending on grouping tags. My guess is, that Audionet aMM takes the sequence 1:1 as it is provided by minimserver, but Bubble UPNP rebuilds the sequence according to track numbering before showing and playing it.

I would appreciate, if you could help me to clarify the situation. B.t.w. I prefer Audionet aMM because it provide max Support for my Audionet DNA 2 which is a great device (integrated streaming Client & amplifier).

Best regards,
Peter

The server sends the album contents to the control point as a DIDL-Lite XML stream. For an album without grouped tracks, the structure of the DIDL-Lite stream sent by MinimServer is:

album container A
---- track 1
---- track 2
---- track 3
---- etc.

For an album with grouped tracks, the structure of the DIDL-Lite stream sent by MinimServer is:

album container A
---- track 1
---- album container B
---- track 4
---- album container C
---- track 7
---- etc.

where the DIDL-Lite stream for album container A includes nested album containers B and C. These nested containers represent the groups in album A, and they have the following DIDL-Lite streams:

album container B
---- track 2
---- track 3

album container C
---- track 5
---- track 6

Nesting album containers in this way is valid according to the DIDL-Lite specification, and the control point should handle it correctly. It seems that Audionet aMM is creating a playlist that puts all the tracks from the top-level DIDL-Lite stream first, followed by the grouped tracks from the nested album containers.