//<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 metadata_id3_CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
object customValue = null;
timedMetadataTrack.PlaybackItem.Source.CustomProperties.TryGetValue("contentId", out customValue);
string contentId = (string)customValue;
logMsg.AppendLine($"{contentId} ID3 DataCue CueEntered raised.");
var dataCue = args.Cue as DataCue;
if (dataCue != null && dataCue.Data != null && dataCue.Data.Length >= 10)
{
// The payload is the raw ID3 bytes found in a TS stream
// Ref: http://id3.org/id3v2.4.0-structure
var dr = DataReader.FromBuffer(dataCue.Data);
var header_ID3 = dr.ReadString(3);
var header_version_major = dr.ReadByte();
var header_version_minor = dr.ReadByte();
var header_flags = dr.ReadByte();
var header_tagSize = dr.ReadUInt32();
// TODO: Use the ID3 bytes for something useful.
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {dataCue.Id}, StartTime: {dataCue.StartTime}, Duration: {dataCue.Duration}");
logMsg.Append($"{header_ID3}, {header_version_major}.{header_version_minor}, {header_flags}, {header_tagSize}");
}
Log(logMsg.ToString());
}
private void TimedText_CueEntered(TimedMetadataTrack sender, MediaCueEventArgs args)
{
Debug.WriteLine("Cue Entered");
Debug.WriteLine("Cue start time was " + args.Cue.StartTime + " " + args.Cue.Duration);
start += args.Cue.StartTime;
args.Cue.StartTime = start;
Debug.WriteLine("Cue start time is " + args.Cue.StartTime + " " + args.Cue.Duration);
}
private void MetadataTrack_DataCueEntered(TimedMetadataTrack sender, MediaCueEventArgs args)
{
var playbackList = _mediaPlayer.Source as MediaPlaybackList;
DataCue cue = (DataCue)args.Cue;
OnPlaybackCueTriggered(new PlaybackCueTriggeredEventArgs()
{
Segment = (int)playbackList.CurrentItemIndex,
EventId = Convert.ToInt32(cue.Id),
Time = cue.StartTime
});
}
/// <summary>
/// This function executes when a SpeechCue is hit and calls then <see cref="EhSpeechProgress(int)"/> in UI context.
/// </summary>
/// <param name="timedMetadataTrack">The timedMetadataTrack associated with the event.</param>
/// <param name="args">the arguments associated with the event.</param>
private async void EhCueReceived(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Speech)
{
var cue = args.Cue as SpeechCue;
if (cue != null)
{
// System.Diagnostics.Debug.WriteLine($"Cue text:[{cue.Text}], Access={Dispatcher.CheckAccess()}");
Dispatcher.BeginInvoke(
new Action <int>(EhSpeechProgress),
DispatcherPriority.Background,
cue.StartPositionInInput
);
}
}
}
// </SnippetRegisterMetadataHandlerForID3Cues>
// <SnippetID3CueEntered>
private void metadata_ID3CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
var dataCue = args.Cue as DataCue;
if (dataCue != null && dataCue.Data != null)
{
// The payload is the raw ID3 bytes found in a TS stream
// Ref: http://id3.org/id3v2.4.0-structure
var dr = Windows.Storage.Streams.DataReader.FromBuffer(dataCue.Data);
var header_ID3 = dr.ReadString(3);
var header_version_major = dr.ReadByte();
var header_version_minor = dr.ReadByte();
var header_flags = dr.ReadByte();
var header_tagSize = dr.ReadUInt32();
System.Diagnostics.Debug.WriteLine($"ID3 tag data: major {header_version_major}, minor: {header_version_minor}");
}
}
//<SnippetTextCueEntered>
private void MetadataTrack_TextCueEntered(TimedMetadataTrack sender, MediaCueEventArgs args)
{
TimedTextCue cue = (TimedTextCue)args.Cue;
System.Diagnostics.Debug.WriteLine("Cue entered: " + cue.Id + " " + cue.Lines[0].Text);
}
/// <summary>
/// This function executes when a SpeechCue is hit and calls the functions to update the UI
/// </summary>
/// <param name="timedMetadataTrack">The timedMetadataTrack associated with the event.</param>
/// <param name="args">the arguments associated with the event.</param>
private async void metadata_MarkCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Speech)
{
var cue = args.Cue as SpeechCue;
if (cue != null)
{
System.Diagnostics.Debug.WriteLine("Cue text:[" + cue.Text + "]");
// Do something with the cue
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
// Your UI update code goes here!
FillTextBox(cue);
});
}
}
}
private void MetadataTrack_CueExited(TimedMetadataTrack sender, MediaCueEventArgs args)
{
}
// <SnippetLastProcessedAdId>
// <SnippetEmsgCueEntered>
private void metadata_EmsgCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
var dataCue = args.Cue as DataCue;
if (dataCue != null)
{
string scheme_id_uri = string.Empty;
string value = string.Empty;
UInt32 timescale = (UInt32)TimeSpan.TicksPerSecond;
UInt32 presentation_time_delta = (UInt32)dataCue.StartTime.Ticks;
UInt32 event_duration = (UInt32)dataCue.Duration.Ticks;
UInt32 id = 0;
Byte[] message_data = null;
const string scheme_id_uri_key = "emsg:scheme_id_uri";
object propValue = null;
dataCue.Properties.TryGetValue(scheme_id_uri_key, out propValue);
scheme_id_uri = propValue != null ? (string)propValue : "";
const string value_key = "emsg:value";
propValue = null;
dataCue.Properties.TryGetValue(value_key, out propValue);
value = propValue != null ? (string)propValue : "";
const string timescale_key = "emsg:timescale";
propValue = null;
dataCue.Properties.TryGetValue(timescale_key, out propValue);
timescale = propValue != null ? (UInt32)propValue : timescale;
const string presentation_time_delta_key = "emsg:presentation_time_delta";
propValue = null;
dataCue.Properties.TryGetValue(presentation_time_delta_key, out propValue);
presentation_time_delta = propValue != null ? (UInt32)propValue : presentation_time_delta;
const string event_duration_key = "emsg:event_duration";
propValue = null;
dataCue.Properties.TryGetValue(event_duration_key, out propValue);
event_duration = propValue != null ? (UInt32)propValue : event_duration;
const string id_key = "emsg:id";
propValue = null;
dataCue.Properties.TryGetValue(id_key, out propValue);
id = propValue != null ? (UInt32)propValue : 0;
System.Diagnostics.Debug.WriteLine($"Label: {timedMetadataTrack.Label}, Id: {dataCue.Id}, StartTime: {dataCue.StartTime}, Duration: {dataCue.Duration}");
System.Diagnostics.Debug.WriteLine($"scheme_id_uri: {scheme_id_uri}, value: {value}, timescale: {timescale}, presentation_time_delta: {presentation_time_delta}, event_duration: {event_duration}, id: {id}");
if (dataCue.Data != null)
{
var dr = Windows.Storage.Streams.DataReader.FromBuffer(dataCue.Data);
// Check if this is a SCTE ad message:
// Ref: http://dashif.org/identifiers/event-schemes/
if (scheme_id_uri.ToLower() == "urn:scte:scte35:2013:xml")
{
// SCTE recommends publishing emsg more than once, so we avoid reprocessing the same message id:
if (!processedAdIds.Contains(id))
{
processedAdIds.Add(id);
dr.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
var scte35payload = dr.ReadString(dataCue.Data.Length);
System.Diagnostics.Debug.WriteLine($", message_data: {scte35payload}");
// TODO: ScheduleAdFromScte35Payload(timedMetadataTrack, presentation_time_delta, timescale, event_duration, scte35payload);
}
else
{
System.Diagnostics.Debug.WriteLine($"This emsg.Id, {id}, has already been processed.");
}
}
else
{
message_data = new byte[dataCue.Data.Length];
dr.ReadBytes(message_data);
// TODO: Use the 'emsg' bytes for something useful.
System.Diagnostics.Debug.WriteLine($", message_data.Length: {message_data.Length}");
}
}
}
}
// </SnippetRegisterMetadataHandlerForEXTM3UCues>
// <SnippetEXTM3UCueEntered>
private void metadata_EXTM3UCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
var dataCue = args.Cue as DataCue;
if (dataCue != null && dataCue.Data != null)
{
// The payload is a UTF-16 Little Endian null-terminated string.
// It is any comment line in a manifest that is not part of the HLS spec.
var dr = Windows.Storage.Streams.DataReader.FromBuffer(dataCue.Data);
dr.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
var m3uComment = dr.ReadString(dataCue.Data.Length / 2 - 1);
System.Diagnostics.Debug.WriteLine(m3uComment);
}
}
// </SnippetImageSubtitleCueEntered>
private void metadata_ImageSubtitleCueExited(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
}
/// <summary>
/// This function executes when a SpeechCue is hit and calls the functions to update the UI
/// </summary>
/// <param name="timedMetadataTrack">The timedMetadataTrack associated with the event.</param>
/// <param name="args">the arguments associated with the event.</param>
private async void metadata_SpeechCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Speech)
{
var cue = args.Cue as SpeechCue;
if (cue != null)
{
SpeakProgress?.Invoke((int)cue.StartPositionInInput, (int)cue.EndPositionInInput - (int)cue.StartPositionInInput + 1);
}
}
}
/// <summary>
/// This function executes when a SpeechCue is hit and calls the functions to update the UI
/// </summary>
/// <param name="timedMetadataTrack">The timedMetadataTrack associated with the event.</param>
/// <param name="args">the arguments associated with the event.</param>
private async void metadata_SpeechCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Speech)
{
var cue = args.Cue as SpeechCue;
if (cue != null)
{
System.Diagnostics.Debug.WriteLine("Hit Cue with start:" + cue.StartPositionInInput + " and end:" + cue.EndPositionInInput);
System.Diagnostics.Debug.WriteLine("Cue text:[" + cue.Text + "]");
// Do something with the cue
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
// Your UI update code goes here!
HighlightTextOnScreen(cue.StartPositionInInput, cue.EndPositionInInput);
FillTextBoxes(cue, timedMetadataTrack);
});
}
}
}
private void metadata_TrackingEvents_CueExited(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
var contentId = (Guid)timedMetadataTrack.PlaybackItem.Source.CustomProperties["contentId"];
logMsg.AppendLine($"{contentId} TrackingEventCue CueExited raised.");
var trackingEventCue = args.Cue as TrackingEventCue;
if (trackingEventCue != null)
{
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {trackingEventCue.Id}, StartTime: {trackingEventCue.StartTime}, Duration: {trackingEventCue.Duration}");
logMsg.Append($"{trackingEventCue.TrackingEventUri}");
}
Log(logMsg.ToString());
}
private void metadata_id3_CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
var contentId = (Guid)timedMetadataTrack.PlaybackItem.Source.CustomProperties["contentId"];
logMsg.AppendLine($"{contentId} ID3 DataCue CueEntered raised.");
var dataCue = args.Cue as DataCue;
if (dataCue != null && dataCue.Data != null && dataCue.Data.Length >= 10)
{
// The payload is the raw ID3 bytes found in a TS stream
// Ref: http://id3.org/id3v2.4.0-structure
var dr = DataReader.FromBuffer(dataCue.Data);
var header_ID3 = dr.ReadString(3);
var header_version_major = dr.ReadByte();
var header_version_minor = dr.ReadByte();
var header_flags = dr.ReadByte();
var header_tagSize = dr.ReadUInt32();
// TODO: Use the ID3 bytes.
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {dataCue.Id}, StartTime: {dataCue.StartTime}, Duration: {dataCue.Duration}");
logMsg.Append($"{header_ID3}, {header_version_major}.{header_version_minor}, {header_flags}, {header_tagSize}");
}
Log(logMsg.ToString());
}
private void metadata_extm3u_CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
var contentId = (Guid)timedMetadataTrack.PlaybackItem.Source.CustomProperties["contentId"];
logMsg.AppendLine($"{contentId} M3U8 DataCue CueEntered raised.");
var dataCue = args.Cue as DataCue;
if (dataCue != null && dataCue.Data != null)
{
// The payload is a UTF-16 Little Endian null-terminated string.
// It is any comment line in a manifest that is not part of the HLS spec.
var dr = DataReader.FromBuffer(dataCue.Data);
dr.UnicodeEncoding = UnicodeEncoding.Utf16LE;
var m3u8Comment = dr.ReadString(dataCue.Data.Length / 2 - 1);
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {dataCue.Id}, StartTime: {dataCue.StartTime}, Duration: {dataCue.Duration}");
logMsg.Append(m3u8Comment);
// TODO: Use the m3u8Comment string.
}
Log(logMsg.ToString());
}
private void metadata_TrackingEvents_CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
var contentId = (Guid)timedMetadataTrack.PlaybackItem.Source.CustomProperties["contentId"];
logMsg.AppendLine($"{contentId} TrackingEventCue CueEntered raised.");
var trackingEventCue = args.Cue as TrackingEventCue;
if (trackingEventCue != null)
{
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {trackingEventCue.Id}, StartTime: {trackingEventCue.StartTime}, Duration: {trackingEventCue.Duration}");
logMsg.Append($"{trackingEventCue.TrackingEventUri}");
// TODO: Use the reporing Uri.
}
Log(logMsg.ToString());
}
// </SnippetRegisterMetadataHandlerForWords>
// <SnippetSpeechWordCueEntered>
private void metadata_SpeechCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Speech)
{
var cue = args.Cue as SpeechCue;
if (cue != null)
{
if (timedMetadataTrack.Label == "SpeechWord")
{
// Do something with the cue
System.Diagnostics.Debug.WriteLine($"{cue.StartPositionInInput} - {cue.EndPositionInInput}: {inputText.Substring((int)cue.StartPositionInInput, ((int)cue.EndPositionInInput - (int)cue.StartPositionInInput) + 1)}");
}
}
}
}
// </SnippetRegisterMetadataHandlerForImageSubtitles>
// <SnippetImageSubtitleCueEntered>
private async void metadata_ImageSubtitleCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.ImageSubtitle)
{
var cue = args.Cue as ImageCue;
if (cue != null)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
var source = new SoftwareBitmapSource();
await source.SetBitmapAsync(cue.SoftwareBitmap);
SubtitleImage.Source = source;
SubtitleImage.Width = cue.Extent.Width;
SubtitleImage.Height = cue.Extent.Height;
SubtitleImage.SetValue(Canvas.LeftProperty, cue.Position.X);
SubtitleImage.SetValue(Canvas.TopProperty, cue.Position.Y);
});
}
}
}
private void metadata_extm3u_CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
object customValue = null;
timedMetadataTrack.PlaybackItem.Source.CustomProperties.TryGetValue("contentId", out customValue);
string contentId = (string)customValue;
logMsg.AppendLine($"{contentId} M3U8 DataCue CueEntered raised.");
var dataCue = args.Cue as DataCue;
if (dataCue != null && dataCue.Data != null)
{
// The payload is a UTF-16 Little Endian null-terminated string.
// It is any comment line in a manifest that is not part of the HLS spec.
var dr = DataReader.FromBuffer(dataCue.Data);
dr.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
var m3u8Comment = dr.ReadString(dataCue.Data.Length / 2 - 1);
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {dataCue.Id}, StartTime: {dataCue.StartTime}, Duration: {dataCue.Duration}");
logMsg.Append(m3u8Comment);
// TODO: Use the m3u8Comment string for something useful.
}
Log(logMsg.ToString());
}
// </SnippetRegisterMetadataHandlerForChapterCues>
// <SnippetChapterCueEntered>
private async void metadata_ChapterCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Chapter)
{
var cue = args.Cue as ChapterCue;
if (cue != null)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
ChapterTitleTextBlock.Text = cue.Title;
});
}
}
}
private void TimedText_CueExited(TimedMetadataTrack sender, MediaCueEventArgs args)
{
Debug.WriteLine("Cue Exited");
}
private void metadata_emsg_mp4_CueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
object customValue = null;
timedMetadataTrack.PlaybackItem.Source.CustomProperties.TryGetValue("contentId", out customValue);
string contentId = (string)customValue;
logMsg.AppendLine($"{contentId} mp4 emsg DataCue CueEntered raised.");
var dataCue = args.Cue as DataCue;
if (dataCue != null)
{
// Ref: ISO/IEC 20009-1, Section 5.10.3.3.2 Definition of Box Type: 'emsg'
string scheme_id_uri = string.Empty;
string value = string.Empty;
UInt32 timescale = (UInt32)TimeSpan.TicksPerSecond;
UInt32 presentation_time_delta = (UInt32)dataCue.StartTime.Ticks;
UInt32 event_duration = (UInt32)dataCue.Duration.Ticks;
UInt32 id = 0;
Byte[] message_data = null;
const string scheme_id_uri_key = "emsg:scheme_id_uri";
object propValue = null;
dataCue.Properties.TryGetValue(scheme_id_uri_key, out propValue);
scheme_id_uri = propValue != null ? (string)propValue : "";
const string value_key = "emsg:value";
propValue = null;
dataCue.Properties.TryGetValue(value_key, out propValue);
value = propValue != null ? (string)propValue : "";
const string timescale_key = "emsg:timescale";
propValue = null;
dataCue.Properties.TryGetValue(timescale_key, out propValue);
timescale = propValue != null ? (UInt32)propValue : timescale;
const string presentation_time_delta_key = "emsg:presentation_time_delta";
propValue = null;
dataCue.Properties.TryGetValue(presentation_time_delta_key, out propValue);
presentation_time_delta = propValue != null ? (UInt32)propValue : presentation_time_delta;
const string event_duration_key = "emsg:event_duration";
propValue = null;
dataCue.Properties.TryGetValue(event_duration_key, out propValue);
event_duration = propValue != null ? (UInt32)propValue : event_duration;
const string id_key = "emsg:id";
propValue = null;
dataCue.Properties.TryGetValue(id_key, out propValue);
id = propValue != null ? (UInt32)propValue : 0;
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {dataCue.Id}, StartTime: {dataCue.StartTime}, Duration: {dataCue.Duration}");
logMsg.Append($"scheme_id_uri: {scheme_id_uri}, value: {value}, timescale: {timescale}, presentation_time_delta: {presentation_time_delta}, event_duration: {event_duration}, id: {id}");
if (dataCue.Data != null)
{
var dr = DataReader.FromBuffer(dataCue.Data);
// Check if this is a SCTE ad message:
// Ref: http://dashif.org/identifiers/event-schemes/
if (scheme_id_uri.ToLower() == "urn:scte:scte35:2013:xml")
{
// SCTE recommends publishing emsg more than once, so we avoid reprocessing the same message id:
if (lastProcessedAdId != id)
{
lastProcessedAdId = id; // TODO: Requires robustness. Messages may be out of order, which would break this sample's logic.
dr.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
var scte35payload = dr.ReadString(dataCue.Data.Length);
logMsg.Append($", message_data: {scte35payload}");
ScheduleAdFromScte35Payload(timedMetadataTrack, presentation_time_delta, timescale, event_duration, scte35payload);
}
else
{
logMsg.AppendLine($"This emsg.Id, {id}, has already been processed.");
}
}
else
{
message_data = new byte[dataCue.Data.Length];
dr.ReadBytes(message_data);
// TODO: Use the 'emsg' bytes for something useful.
logMsg.Append($", message_data.Length: {message_data.Length}");
}
}
}
Log(logMsg.ToString());
}
private void metadata_TrackingEvents_CueExited(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
StringBuilder logMsg = new StringBuilder();
object customValue = null;
timedMetadataTrack.PlaybackItem.Source.CustomProperties.TryGetValue("contentId", out customValue);
string contentId = (string)customValue;
logMsg.AppendLine($"{contentId} TrackingEventCue CueExited raised.");
var trackingEventCue = args.Cue as TrackingEventCue;
if (trackingEventCue != null)
{
logMsg.AppendLine($"Label: {timedMetadataTrack.Label}, Id: {trackingEventCue.Id}, StartTime: {trackingEventCue.StartTime}, Duration: {trackingEventCue.Duration}");
logMsg.Append($"{trackingEventCue.TrackingEventUri}");
}
Log(logMsg.ToString());
}
// </SnippetEmsgCueEntered>
private void metadata_EmsgCueExited(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
}
/// <summary>
/// This function executes when a SpeechCue is hit and calls the functions to update the UI
/// </summary>
/// <param name="timedMetadataTrack">The timedMetadataTrack associated with the event.</param>
/// <param name="args">the arguments associated with the event.</param>
private async void metadata_SpeechCueEntered(TimedMetadataTrack timedMetadataTrack, MediaCueEventArgs args)
{
// Check in case there are different tracks and the handler was used for more tracks
if (timedMetadataTrack.TimedMetadataKind == TimedMetadataKind.Speech)
{
var cue = args.Cue as SpeechCue;
if (cue != null)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
if (timedMetadataTrack.Id == "SpeechSentence" || timedMetadataTrack.Id == "SpeechWord")
{
SpeechCueType type = timedMetadataTrack.Id == "SpeechSentence" ? SpeechCueType.Sentence : SpeechCueType.Word;
var arg = new SpeechCueEventArgs(cue, type);
SpeechCueChanged?.Invoke(this, arg);
}
});
}
}
}
