UPnP Client: Issues with browsing content.

The UPnP Client show different issues related to browsing through the server's content:

• When starting VLC, in 'LOCAL NETWORK' -> 'Universal Plug'n'Play' I see the server name doubled. Selecting something different and re-selecting it, I see the server name just once.
• The dropdown triangle only appears after double clicking the repsective list entry.
• The list is not showing all content inside a category/directory. It only show a part of it. The is not chance to re-scan...

The Version of VLC is 3.0.0 from git dated 2015-11-06. UPnP Server is Logitech Media Server 7.9.0.

Comment: Other clients show the metadata of that server.

The OS X Version is 10.11.1 (El Capitan)

Do you see a pattern for the missing content?

assigned to @Courmisch

added Component::Services discovery label

assigned to @fkuehne and unassigned @Courmisch

Okay I added some further information...

DROPDOWN TRIANGLE:

1. Click/mark the entry.
2. Double click it.
3. After a very short time the triangle appears.
4. Triangle can be used to expand.

Issue: When I try top open the Album content by this procedure, the first song starts to play after the clicking. At same time the album expands. In that case you cannot really browse while listening to a specific track without changing the track.

MISSING CONTENT: There is no pattern in the way that entries formatted in a special way are missing. It seems that after a number of entries there are no more scanned/shown/present in the list.

This holds for "Artists" as well as "Albums":

• Number shown: approx. 200 each.
• No. of Albums in the database: 1024
• No. of Artist in the database: 451

I can confirm the problem with the max 200 items per upnp-folders. It exists with Android-clients as well:

I appreciate the network-feature of the VLC for Android client. And I would like to use it to stream videos, that I distribute in my LAN/WLAN with Kodi - I have an dedicated Kodibuntu-PC for this. That works quite well, VLC for Android find's the upnp-folders of Kodi and browsing and streaming in VLC works smooth.

But unfortunately VLC only lists a maximum of 200 files/movies per folder, eventhough I have more than 1000 movies online. I didn't find a way to see the rest of the files. If I browse the upnp-folders with my Windows-Notebook I see all the available movies, so I think it doesn't seem to be a problem of Kodi.

Is there any other way or workaround to set a higher no of listed files per folder in VLC for Android?

added Platform::macOS label

Try 3.0 to test this issue.

VLC displays max 12 items per folder when accessing the dlna server on my DMR-BCT765.

Tested with:

vlc-3.0.0-20180114-0507-rc6-win64

vlc-4.0.0-20180114-0508-dev-win64

This issue could be related to #6716 (closed)

Check the wireshark capture.

VLC request to dlna server:

Internet Protocol Version 4, Src: 192.168.14.24, Dst: 192.168.14.27
Transmission Control Protocol, Src Port: 50098, Dst Port: 60606, Seq: 1, Ack: 1, Len: 715
    Source Port: 50098
    Destination Port: 60606
    [Stream index: 30]
    [TCP Segment Len: 715]
    Sequence number: 1    (relative sequence number)
    [Next sequence number: 716    (relative sequence number)]
    Acknowledgment number: 1    (relative ack number)
    0101 .... = Header Length: 20 bytes (5)
    Flags: 0x018 (PSH, ACK)
    Window size value: 256
    [Calculated window size: 65536]
    [Window size scaling factor: 256]
    Checksum: 0xa069 [unverified]
    [Checksum Status: Unverified]
    Urgent pointer: 0
    [SEQ/ACK analysis]
    TCP payload (715 bytes)
Hypertext Transfer Protocol
eXtensible Markup Language
    <s:Envelope
        xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"
        s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
        <s:Body>
            <u:Browse
                xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
                <ObjectID>
                    AV_ALL
                    </ObjectID>
                <BrowseFlag>
                    BrowseDirectChildren
                    </BrowseFlag>
                <Filter>
                    *
                    </Filter>
                <StartingIndex>
                    0
                    </StartingIndex>
                <RequestedCount>
                    5000
                    </RequestedCount>
                <SortCriteria>
                    </SortCriteria>
                </u:Browse>
            </s:Body>
        </s:Envelope>

dlna server response:

Internet Protocol Version 4, Src: 192.168.14.27, Dst: 192.168.14.24
Transmission Control Protocol, Src Port: 60606, Dst Port: 50098, Seq: 22525, Ack: 716, Len: 976
    Source Port: 60606
    Destination Port: 50098
    [Stream index: 30]
    [TCP Segment Len: 976]
    Sequence number: 22525    (relative sequence number)
    [Next sequence number: 23502    (relative sequence number)]
    Acknowledgment number: 716    (relative ack number)
    0101 .... = Header Length: 20 bytes (5)
    Flags: 0x019 (FIN, PSH, ACK)
    Window size value: 228
    [Calculated window size: 7296]
    [Window size scaling factor: 32]
    Checksum: 0x3512 [unverified]
    [Checksum Status: Unverified]
    Urgent pointer: 0
    [SEQ/ACK analysis]
    TCP payload (976 bytes)
    TCP segment data (976 bytes)
[18 Reassembled TCP Segments (23500 bytes): [#237](https://code.videolan.org/videolan/vlc/-/issues/237)(1020), [#238](https://code.videolan.org/videolan/vlc/-/issues/238)(1460), [#240](https://code.videolan.org/videolan/vlc/-/issues/240)(1460), [#241](https://code.videolan.org/videolan/vlc/-/issues/241)(1460), [#243](https://code.videolan.org/videolan/vlc/-/issues/243)(1460), [#244](https://code.videolan.org/videolan/vlc/-/issues/244)(1460), [#246](https://code.videolan.org/videolan/vlc/-/issues/246)(1460), [#247](https://code.videolan.org/videolan/vlc/-/issues/247)(1460), [#249](https://code.videolan.org/videolan/vlc/-/issues/249)(1460), [#250](https://code.videolan.org/videolan/vlc/-/issues/250)(1460), [#251](https://code.videolan.org/videolan/vlc/-/issues/251)(172), [#253](https://code.videolan.org/videolan/vlc/-/issues/253)(1460), [#255](https://code.videolan.org/videolan/vlc/-/issues/255)(1460), [#256](https://code.videolan.org/videolan/vlc/-/issues/256)(1460), [#258](https://code.videolan.org/videolan/vlc/-/issues/258)(1460), [#259](https://code.videolan.org/videolan/vlc/-/issues/259)(1460), [#261](https://code.videolan.org/videolan/vlc/-/issues/261)(]
Hypertext Transfer Protocol
eXtensible Markup Language
    <s:Envelope
        xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"
        s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
        <s:Body>
            <u:BrowseResponse
                xmlns:u="urn:schemas-upnp-org:service:ContentDirectory:1">
                <Result>
                     [truncated]&lt;DIDL-Lite xmlns=&quot;urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/&quot; xmlns:dc=&quot;http://purl.org/dc/elements/1.1/&quot; xmlns:upnp=&quot;urn:schemas-upnp-org:metadata-1-0/upnp/&quot; xmlns:dlna=&quot;urn:schemas-dlna
                    </Result>
                <NumberReturned>
                    12
                    </NumberReturned>
                <TotalMatches>
                    77
                    </TotalMatches>
                <UpdateID>
                    30322
                    </UpdateID>
                </u:BrowseResponse>
            </s:Body>
        </s:Envelope>

VLC requests 5000 entries from the folder "AV_ALL" staring at id 0.

The dlna server returns 12 of the 77 items within this folder.

VLC makes no further requests to receive the remaining ones. Which results in VLC only displaying 12 items on its playlist for this folder.

Sorry, but this is a different issue, then. The max limit hardcoded was something else...

Added attachment:

• Screenshot_20180409-140444.png

I reproduced the error of the limitation to 200 items in every subcategory of the uPnP browsing.

The server is Kodi 17.6 on Ubuntu 16.04

Tested on VLC 3.0.1 under Debian and under LineageOS (apk)

LineageOS screenshot attached.

I have more than 200 artists, 200 albums, 200 singles, 200 songs.

There must be either a 200 hardcoded limit, either a uPnP pagnination not used by VLC.

It's sad as it's maybe the last blocking element for me to use vlc as a lightweight uPnP client on every platform instead of using kodi (heavy!) as a client.

I'm afraid, we need to wireshark to find the limit...

Wireshark after clicking on my "songs" folder with VLC 3.0.1 under Debian

Added attachment:

• VLCUPNPWireshark2.pcapng

Wiresharked. Done what I could. Could you investigate ?

assigned to @chouquette and unassigned @fkuehne

Issue still persist.