public void Close()
{
Stop();
try {
_audioVolume?.Dispose();
_videoControl?.Dispose();
_mediaSession?.Close();
} catch (SharpDXException) { }
_audioVolume = null;
_videoControl = null;
}
// return every timer click - set by timer control on aspx page to be every 1000ms
protected void Page_PreRender(object sender, EventArgs e)
{
try
{
// Look at blob container that contains the videos
// generated by the worker role. Perform a query
// of the its contents and return the list of all of the
// blobs whose name begins with the string "videos".
// It returns an enumerator of their URLs.
// Place that enumerator into list view as its data source.
VideoDisplayControl.DataSource = from o in getVideoPlaylistContainer().GetDirectoryReference("samples").ListBlobs()
select new { Url = o.Uri, Title = getTitle(o.Uri) };
// Tell the list view to bind to its data source, thereby
// showing
VideoDisplayControl.DataBind();
}
catch (Exception)
{
}
}
private void OnMediaEvent(MediaEvent ev)
{
Trace.WriteLine($"HwndRenderSession::OnMediaEvent(): {ev.TypeInfo} {ev.Status}");
switch (ev.TypeInfo)
{
case MediaEventTypes.SessionClosed:
// cleanup
AfterClose();
_isSessionReady.OnNext(false);
break;
case MediaEventTypes.SessionTopologyStatus:
if (ev.Status.Failure)
{
_playFailed.OnNext(ev.Status.Code);
return;
}
Trace.WriteLine($"HwndRenderSession::OnMediaEvent(): => TopologyStatus={ev.Get(EventAttributeKeys.TopologyStatus)}");
if (ev.Status.Success && ev.Get(EventAttributeKeys.TopologyStatus) == TopologyStatus.Ready)
{
using (var sp = _mediaSession.QueryInterface <ServiceProvider>()) {
_videoControl = sp.GetService <VideoDisplayControl>(CustomServiceKeys.VideoRender);
_audioVolume = sp.GetService <SimpleAudioVolume>(MediaServiceKeys.PolicyVolume);
}
_isSessionReady.OnNext(true);
}
break;
//case MediaEventTypes.SessionStarted:
//case MediaEventTypes.EndOfPresentation:
//case MediaEventTypes.SessionStopped:
default:
break;
}
}
void mediaSession_OnSessionTopologyStatus(MediaEvent mediaEvent)
{
if (mediaEvent.EventTopologyStatus == MFTopoStatus.Ready)
{
videoDisplayControl = VideoDisplayControl.Create(mediaSession);
mediaSession.Start();
}
}
