public void RecordTrackUpdated(MusicTrack track)
{
if (TrackUpdate != null)
{
TrackUpdate(this, track);
}
}
public static MusicTrack Parse(string xml)
{
var track = new MusicTrack();
var element = XElement.Parse(xml);
var classType = SetValueIfNodeNotNull(element, "class", "urn:schemas-upnp-org:metadata-1-0/upnp/");
if (classType != "object.item.audioItem.musicTrack")
{
return(null);
}
track.Title = SetValueIfNodeNotNull(element, "title", "http://purl.org/dc/elements/1.1/");
track.Creator = SetValueIfNodeNotNull(element, "creator", "http://purl.org/dc/elements/1.1/");
var resourceUri = SetValueIfNodeNotNull(element, "res", "urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/");
if (!string.IsNullOrEmpty(resourceUri))
{
track.ResourceUri = new Uri(resourceUri);
}
track.Album = new Album
{
Name = SetValueIfNodeNotNull(element, "album", "urn:schemas-upnp-org:metadata-1-0/upnp/")
};
var albumArtUri = SetValueIfNodeNotNull(element, "albumArtURI", "urn:schemas-upnp-org:metadata-1-0/upnp/");
if (!string.IsNullOrEmpty(albumArtUri))
{
track.Album.ImageUrl = new Uri(albumArtUri);
}
return(track);
}
public void RecordStateVariableChange(string xml)
{
var doc = XElement.Parse(xml);
var currentTrackMetaDataNode = doc
.Descendants(XName.Get("CurrentTrackMetaData", "urn:schemas-upnp-org:metadata-1-0/AVT/"))
.SingleOrDefault(n => !String.IsNullOrEmpty(n.Attribute("val").Value));
var transportStateNode = doc
.Descendants(XName.Get("TransportState", "urn:schemas-upnp-org:metadata-1-0/AVT/"))
.SingleOrDefault(n => n.HasAttributes);
var masterMuteNode = doc
.Descendants(XName.Get("Mute", "urn:schemas-upnp-org:metadata-1-0/RCS/"))
.SingleOrDefault(n => n.Attribute("channel").Value == "Master");
var masterVolumeNode = doc
.Descendants(XName.Get("Volume", "urn:schemas-upnp-org:metadata-1-0/RCS/"))
.SingleOrDefault(n => n.Attribute("channel").Value == "Master");
if (currentTrackMetaDataNode != null)
{
var xmlString = currentTrackMetaDataNode.Attribute("val").Value;
var track = MusicTrack.Parse(xmlString);
if (track != null)
{
RecordTrackUpdated(track);
}
}
if (transportStateNode != null)
{
var transportState = transportStateNode.Attribute("val").Value;
switch (transportState)
{
case "STOPPED":
case "PAUSED_PLAYBACK":
RecordStopped();
break;
case "TRANSITIONING":
RecordTransitioning();
break;
case "PLAYING":
RecordPlaying();
break;
}
}
if (masterVolumeNode != null)
{
var volume = int.Parse(masterVolumeNode.Attribute("val").Value);
RecordVolumeChange(volume);
}
if (masterMuteNode != null)
{
var muted = Convert.ToBoolean(int.Parse(masterMuteNode.Attribute("val").Value));
RecordMuteChange(muted);
}
}
