Cannot sort items by date.

[magimagi 0]

Cannot sort items by date. Confirmed with the following multiple DLNA clients.

1. PlayerXtream on iPhone
   The order does not change. It remain in name order.
2. kodi on windows
   Same as above. It remain in the previous order.
3. Pigasus on Oculus Quest 2
   It became in a random order.
4. SKYBOX on Oculus Go
   Same as above.

It seems that the "date added" has not been sent to the DLNA client.

[Luke 37009]

HI, are you able to sort on other criteria?

[magimagi 0]

Yes. I can sort by name and size. I haven't set any other metadata.

[Luke 37009]

OK I'm going to have to look at how to put this in dlna didl information because i don't think there is a standard field for that.

Kodi supports their own proprietary field which is 

xbmc:dateadded

So we could write that out, but that's not going to help with the other three apps you're mentioning.

[magimagi 0]

When Serviio and Kodi were run as DLNA servers, Pigasus, SKYBOX and Kodi can sort by date, so I analyzed the communication contents using a network protocol analyzer (Wireshark).

As a result, it was found that Serviio and Kodi sent "dc: date" as added date, but Emby did not. Perhaps I think "dc: date" is commonly used as a property to mean added date.

Please improve Emby to set the added date to "dc: date" and send it to the client.

Below is an excerpt from Wireshark's packet capture.

Quote

 

Serviio
          <item id="V_F^FOL*R14$MI220203" parentID="V_F^FOL*R14" restricted="1">
            <dc:title>BOOYAHVR-001_TB_360.mkv</dc:title>
            <upnp:class>object.item.videoItem</upnp:class>
            <upnp:albumArtURI dlna:profileID="JPEG_TN">http://192.168.1.100:8895/resource/386447/COVER_IMAGE</upnp:albumArtURI>
            <upnp:icon>http://192.168.1.100:8895/resource/386447/COVER_IMAGE</upnp:icon>
            <dc:date>2020-11-20</dc:date>
            <upnp:rating>Unknown</upnp:rating>
            <res bitrate="734250" duration="0:11:52.000" protocolInfo="http-get:*:video/x-matroska:DLNA.ORG_PN=AVC_MKV_HP_HD_AAC_MULT5;DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01500000000000000000000000000000" resolution="2160x2160" size="522879217">http://192.168.1.100:8895/resource/220203/MEDIA_ITEM/AVC_MKV_HP_HD_AAC_MULT5-0/ORIGINAL</res>
            <res protocolInfo="http-get:*:image/jpeg:DLNA.ORG_PN=JPEG_TN;DLNA.ORG_OP=00;DLNA.ORG_CI=1;DLNA.ORG_FLAGS=00D00000000000000000000000000000" resolution="160x160">http://192.168.1.100:8895/resource/386447/COVER_IMAGE</res>
          </item>

Kodi
          <item id="P:\Videos\VR\BOOYAHVR-001_TB_360.mkv" parentID="P:\Videos\VR\" restricted="1">
            <dc:title>BOOYAHVR-001_TB_360</dc:title>
            <dc:creator>Unknown</dc:creator>
            <dc:date>2020-11-20</dc:date>
            <dc:publisher>Unknown</dc:publisher>
            <upnp:genre>Unknown</upnp:genre>
            <upnp:episodeSeason>0</upnp:episodeSeason>
            <res size="522879217" protocolInfo="http-get:*:video/x-matroska:DLNA.ORG_OP=01;DLNA.ORG_CI=0">http://192.168.1.100:1592/%25/8f0e65793d8db9f8e70bb0cdfc4959e1/BOOYAHVR-001_TB_360.mkv</res>
            <res size="522879217" protocolInfo="http-get:*:video/x-matroska:DLNA.ORG_OP=01;DLNA.ORG_CI=0">http://192.168.56.1:1592/%25/8f0e65793d8db9f8e70bb0cdfc4959e1/BOOYAHVR-001_TB_360.mkv</res>
            <xbmc:rating>0.0</xbmc:rating>
            <xbmc:userrating>0</xbmc:userrating>
            <upnp:class>object.item.videoItem</upnp:class>
          </item>

Emby
          <item restricted="1" id="2430" parentID="2429">
            <dc:title>BOOYAHVR-001_TB_360</dc:title>
            <upnp:class>object.item.videoItem.musicVideoClip</upnp:class>
            <res duration="00:11:52.0440000" size="522879217" nrAudioChannels="2" resolution="2160x2160" sampleFrequency="48000" bitrate="6066684" protocolInfo="http-get:*:video/x-matroska:DLNA.ORG_PN=MATROSKA;DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01D00000000000000000000000000000">http://192.168.1.100:8096/videos/2430/stream.mkv?DeviceId=eec8bab67a3cd4c702fa90155680f81e&amp;MediaSourceId=700dbf79243c1a0a96b3be590a80e814&amp;Static=true&amp;PlaySessionId=32bf1e83729883dd6c58a2bd44815ee5</res>
            <upnp:albumArtURI dlna:profileID="JPEG_SM">http://192.168.1.100:8096/Items/2430/Images/Primary/0/646099ad7b102fc25dc3a3e7abf0c6ad/jpg/480/480/0/0</upnp:albumArtURI>
            <upnp:icon>http://192.168.1.100:8096/Items/2430/Images/Primary/0/646099ad7b102fc25dc3a3e7abf0c6ad/jpg/48/48/0/0</upnp:icon>
          </item>

 

 

[Luke 37009]

Ok we actually already are, but we're using the premiere date value, not the date you added it into your library.

What we can do to further improve this is, when that value is empty, we can check the release year value and create a date from that.

[magimagi 0]

"premiere date" means "release date", right? If so, it's usually not set release date (and release year) for videos that aren't registered in the metadata downloader. So please improve to set the added date to "dc: date", if "release date" is empty.