//</SnippetDataCueEntered>
private void AddTimedMetaDataTrack_Text()
{
//<SnippetAddTextTrack>
TimedMetadataTrack metadataTrack = new TimedMetadataTrack("TrackID_0", "en-us", TimedMetadataKind.Caption);
metadataTrack.Label = "Custom text track";
metadataTrack.CueEntered += MetadataTrack_TextCueEntered;
for (int i = 0; i < 10; i++)
{
TimedTextCue cue = new TimedTextCue()
{
Id = "TextCueID_" + i,
StartTime = TimeSpan.FromSeconds(i * 3),
Duration = TimeSpan.FromSeconds(2)
};
cue.Lines.Add(new TimedTextLine()
{
Text = "This is a custom timed text cue."
});
metadataTrack.AddCue(cue);
}
mediaSource.ExternalTimedMetadataTracks.Add(metadataTrack);
//</SnippetAddTextTrack>
}
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>
}
/// <summary>
/// Creates a TimedMetadataTrack on the source
/// </summary>
/// <param name="source">the source on which to create a TimedMetadataTrack</param>
/// <param name="contentId">the content id for this source</param>
/// <param name="reportingUriFormat">the format string used to create reporting Uri for each event</param>
public static void CreateTrackingEventsTrack(MediaSource source, string contentId, string reportingUriFormat)
{
if (source.Duration.HasValue && !string.IsNullOrEmpty(contentId))
{
long sourceDurationTicks = source.Duration.Value.Ticks;
sourceDurationTicks = AdjustDurationIfLive(sourceDurationTicks);
var trackingEvents = new TimedMetadataTrack("TrackingEvents", "", TimedMetadataKind.Custom);
trackingEvents.AddCue(new TrackingEventCue()
{
// This method is called once the media has loaded. If it is set to AutoPlay, then
// we may miss Position=0.0. Avoid the race by "starting" at the 2-second mark.
StartTime = TimeSpan.FromSeconds(2),
Id = "2s",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "started", contentId)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.25)),
Id = "0.25",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "firstQuartile", contentId)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.50)),
Id = "0.50",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "midpoint", contentId)),
// We can cause CueExited to fire at 55% by setting a Duration:
Duration = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.05)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.75)),
Id = "0.75",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "thirdQuartile", contentId)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks(sourceDurationTicks),
Id = "1.00",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "complete", contentId)),
});
source.ExternalTimedMetadataTracks.Add(trackingEvents);
}
}
/// <summary>
/// Creates a TimedMetadataTrack on the source
/// </summary>
/// <param name="source">the source on which to create a TimedMetadataTrack</param>
/// <param name="contentId">the content id for this source</param>
/// <param name="reportingUriFormat">the format string used to create reporting Uri for each event</param>
public static void CreateTrackingEventsTrack(MediaSource source, string contentId, string reportingUriFormat)
{
if (source.Duration.HasValue && !string.IsNullOrEmpty(contentId))
{
long sourceDurationTicks = source.Duration.Value.Ticks;
sourceDurationTicks = AdjustDurationIfLive(sourceDurationTicks);
var trackingEvents = new TimedMetadataTrack("TrackingEvents", "", TimedMetadataKind.Custom);
trackingEvents.AddCue(new TrackingEventCue()
{
// This method is called once the media has loaded. If it is set to AutoPlay, then
// we may miss Position=0.0. Avoid the race by "starting" at the 2-second mark.
StartTime = TimeSpan.FromSeconds(2),
Id = "2s",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "started", contentId)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.25)),
Id = "0.25",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "firstQuartile", contentId)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.50)),
Id = "0.50",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "midpoint", contentId)),
// We can cause CueExited to fire at 55% by setting a Duration:
Duration = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.05)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks((long)Math.Round(sourceDurationTicks * 0.75)),
Id = "0.75",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "thirdQuartile", contentId)),
});
trackingEvents.AddCue(new TrackingEventCue()
{
StartTime = TimeSpan.FromTicks(sourceDurationTicks),
Id = "1.00",
TrackingEventUri = new Uri(string.Format(reportingUriFormat, "complete", contentId)),
});
source.ExternalTimedMetadataTracks.Add(trackingEvents);
}
}