public Player(
MediaElement vid,
MseStreamSource mse,
Manifest manifest)
{
sourceBuffers = new List<SourceBufferManager>();
playbackTimer = new DispatcherTimer();
mediaElement = vid;
this.mse = mse;
this.manifest = manifest;
//Add an audio and video source buffer
AddAudioAndVideoSourceBuffers(this.manifest.GetSelectedPeriod());
if (this.manifest.IsLive && this.manifest.HasMinimumUpdatePeriod)
{
StartManifestReloadTimer();
}
}
internal async void GoToLiveEdge()
{
await ReloadManifest();
sourceBuffers.Clear();
mse.EndOfStream(MseEndOfStreamStatus.Success);
opened = false;
mse = new MseStreamSource();
AddAudioAndVideoSourceBuffers(manifest.GetSelectedPeriod());
SetLiveOffsetValue();
ConfigureMse();
mediaElement.SetMediaStreamSource(mse);
CheckForMediaPresentationDuration();
UpdateLiveSourceBuffersToLiveEdge();
mediaElement.Play();
}
internal void Close()
{
try
{
if (manifestReloadTimer != null)
{
manifestReloadTimer.Stop();
}
sourceBuffers.Clear();
mse = null;
playbackTimer.Stop();
}
catch (Exception e)
{
#if DEBUG
Logger.Log("Exception has been thrown: " + e.Message);
#endif
}
}
private void M_mse_Opened(MseStreamSource sender, object args)
{
#if DEBUG
Logger.Log("Opened Stream Source");
#endif
if (opened)
{
return;
}
opened = true;
foreach (var sourceBuffer in sourceBuffers)
{
if (manifest.IsLive)
{
mse.Duration = null;
}
sourceBuffer.Initialize(mse);
}
}
private void M_mse_Closed(MseStreamSource sender, object args)
{
#if DEBUG
Logger.Log("Closing media source");
#endif
foreach (var sourceBuffer in sourceBuffers)
{
sourceBuffer.Close();
}
}
/// <summary>
/// Downloads the manifest from the given source, parses the manifest
/// and sets the source on the media element
/// </summary>
/// <param name="source">The URL of the source MPD</param>
/// <param name="mediaElement">The MediaElement to start playback</param>
/// <returns></returns>
public async Task Initialize(Uri source, MediaElement mediaElement)
{
//1) Download manifest
var sourceUrlText = source.AbsoluteUri;
try
{
var manifest = new Manifest(sourceUrlText);
var document = await manifest.LoadManifestAsync(sourceUrlText);
//2) Parse manifest
DashManifestParser mpdParser = new DashManifestParser(document, ref manifest);
if (mpdParser.Parse())
{
if (!manifest.IsSupportedProfile)
{
#if DEBUG
Logger.Log("The profiles attribute does not contain the \"urn:mpeg:dash:profile:isoff-live:2011\" profile, so it may not work as expected.");
#endif
}
if (manifest.IsLive)
{
//3) Play using MSE if it is live
MseStreamSource mseSource = new MseStreamSource();
player = new Player(mediaElement, mseSource, manifest);
if (haveSetLiveOffset && manifest.IsLive)
{
player.HasLiveOffsetValue = true;
player.LiveOffset = liveOffset;
}
player.Initialize();
}
else
{
// Otherwise, use our Adaptive Media Source for on demand content
var result = await AdaptiveMediaSource.CreateFromUriAsync(source);
if (result.Status != AdaptiveMediaSourceCreationStatus.Success)
{
throw new Exception("Unable to create media source because: " + result.Status);
}
var adaptiveSource = result.MediaSource;
mediaElement.SetMediaStreamSource(adaptiveSource);
mediaElement.Play();
}
}
else
{
#if DEBUG
Logger.Log("The Parser failed to parse this mpd");
#endif
return;
}
}
catch (Exception e)
{
#if DEBUG
Logger.Log("Exception when initializing player: " + e.Message + " " + Logger.Display(e));
#endif
}
}
internal void Initialize(MseStreamSource mse)
{
this.mse = mse;
sb = this.mse.AddSourceBuffer(mimeType);
}
public MseStreamSourceEvents(MseStreamSource This)
{
this.This = This;
}