//<SnippetDataCueEntered>
private void MetadataTrack_DataCueEntered(TimedMetadataTrack sender, MediaCueEventArgs args)
{
DataCue cue = (DataCue)args.Cue;
string data = System.Text.Encoding.Unicode.GetString(cue.Data.ToArray());
System.Diagnostics.Debug.WriteLine("Cue entered: " + data);
}
private void AddTimedMetaDataTrack_Data()
{
//<SnippetAddDataTrack>
TimedMetadataTrack metadataTrack = new TimedMetadataTrack("ID_0", "en-us", TimedMetadataKind.Data);
metadataTrack.Label = "Custom data track";
metadataTrack.CueEntered += MetadataTrack_DataCueEntered;
metadataTrack.CueExited += MetadataTrack_CueExited;
// Example cue data
string data = "Cue data";
byte[] bytes = new byte[data.Length * sizeof(char)];
System.Buffer.BlockCopy(data.ToCharArray(), 0, bytes, 0, bytes.Length);
Windows.Storage.Streams.IBuffer buffer = bytes.AsBuffer();
for (int i = 0; i < 10; i++)
{
DataCue cue = new DataCue()
{
Id = "ID_" + i,
Data = buffer,
StartTime = TimeSpan.FromSeconds(3 + i * 3),
Duration = TimeSpan.FromSeconds(2)
};
metadataTrack.AddCue(cue);
}
mediaSource.ExternalTimedMetadataTracks.Add(metadataTrack);
//</SnippetAddDataTrack>
}
private void MetadataTrack_DataCueEntered(TimedMetadataTrack sender, MediaCueEventArgs args)
{
var playbackList = _mediaPlayer.Source as MediaPlaybackList;
DataCue cue = (DataCue)args.Cue;
OnPlaybackCueTriggered(new PlaybackCueTriggeredEventArgs()
{
Segment = (int)playbackList.CurrentItemIndex,
EventId = Convert.ToInt32(cue.Id),
Time = cue.StartTime
});
}
public bool LoadAudioCues(List <InkEvent> events)
{
if (CurrentSession.Segments == 0)
{
this.LogMessage(RECORD_LOG_NAME, "LoadAudioCues() failed because No audio segments");
return(false);
}
if (_playbackList == null)
{
this.LogMessage(RECORD_LOG_NAME, "LoadAudioCues() failed because MediaPlaybackList is null.");
return(false);
}
foreach (var ev in events)
{
if (ev.SegmentId >= CurrentSession.Segments)
{
this.LogMessage(RECORD_LOG_NAME, "LoadAudioCues() failed because event segment ID out of range: " + ev.SegmentId);
}
string data = "Cue data";
byte[] bytes = new byte[data.Length];
System.Buffer.BlockCopy(data.ToCharArray(), 0, bytes, 0, bytes.Length);
IBuffer buffer = bytes.AsBuffer();
var cue = new DataCue {
Data = buffer, Id = ev.Id.ToString(), StartTime = ev.TimeHappened
};
var playbackItem = _playbackList.Items[ev.SegmentId];
var track = playbackItem.TimedMetadataTracks[0];
try
{
track.AddCue(cue);
}
catch (Exception e)
{
this.LogMessage(RECORD_LOG_NAME, "LoadAudioCues() failed because Exception loading cue: " + e.Message);
}
}
return(true);
}
