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Author Topic: Issues with DLNA & search  (Read 4391 times)

herr_schneider

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Issues with DLNA & search
« on: February 04, 2016, 01:55:12 am »

Hi there,

I use MC (current linux version, hosted on debian jessie) as my Media Server, including various DLNA server instances.

While using BubbleUPNP as controller I have to realize that searches via DLNA do not work as expected. I exchanged some information with bubbleguum and here is what we found out:

1. Track search seems to return all  items that contain the specified search string as substring - this behaviour is the same at my place and in his set up
2. Album search does return values upon exact title match at his set up, never any result at all at mine
3. Searching for albums by artist - his set-up upon exact-match of artist name, no result never with my set-up.

Log on the BubbleUPNP indicates that the search request should be correct. Tested also with minimServer and searches give the results expected...

Please advice. Thanks.
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AndrewFG

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Re: Issues with DLNA & search
« Reply #1 on: February 04, 2016, 07:38:59 am »

Umm. It does not surprise me at all. The UPNP Search feature is very seldom used and horrendously difficult to code. All server vendors do it differently, and many do it badly. And most control point vendors don't offer it at all. So between you and me, I fear that improving this for you may not be a top priority for JRiver...

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herr_schneider

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Re: Issues with DLNA & search
« Reply #2 on: February 04, 2016, 08:53:27 am »

So between you and me, I fear that improving this for you may not be a top priority for JRiver...
Considering the discussions I had related to that in the past and the current focus on everything TV at JR, I fear you might be right. Unfortunately, LMS is neither an option as there is no Whitebear on Linux  :-X
All the other DLNA servers are extremely awful when it comes to library representation, if there is configuration options at all. Well, you can't live in a perfect world.
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herr_schneider

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Re: Issues with DLNA & search
« Reply #3 on: February 04, 2016, 08:54:46 am »

The UPNP Search feature is very seldom used and horrendously difficult to code.

The reason for it being very seldom used might be that it is difficult to code, ne c'est pas?
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bubbleguuum

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Re: Issues with DLNA & search
« Reply #4 on: February 04, 2016, 09:45:08 am »

tested with MC 21.0.42

Specifically, what doesn't works is that the "contains" keyword of UPnP searches seems to be treated like "=",
meaning that substring searches on album titles and album artists do not work, and only exact matches are returned.

For example, if an album is titled "Cool Album Title", searching in BubbleUPnP for "Cool" will not return it for this request:

(upnp:class = "object.container.album.musicAlbum" and dc:title contains "Cool")

However searching "Cool Album Title" will return the album (for me), but returns nothing for herr_schneider, which
really doesn't make sense, unless a MC DLNA setting has an effect on search results...

Same behaviour for substring search on artist names.
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