/// <summary>
/// This method is called when a new session is about to be created.
/// This method should validate the requested session parameters, and change if needed.
/// If unable to handle more sessions for this channel, you can throw an Exception.
/// </summary>
/// <param name="session"></param>
void MediaProviderSessionOpening(MediaProviderSession session)
{
if (InvokeRequired)
{
BeginInvoke(new MediaProviderChannel.SessionOpeningDelegate(MediaProviderSessionOpening), session);
}
else
{
// Here we can check what the server side has configured, and adjust to what make sense for us.
int maxFPS = 15;
if (comboBoxFPS.SelectedItem != null)
{
Int32.TryParse(comboBoxFPS.SelectedItem.ToString(), out maxFPS);
}
if (session.FPS > maxFPS)
{
session.FPS = maxFPS;
}
// Resolution, Quality, etc can also be modified
if (session.Quality > hScrollBarQuality.Value)
{
session.Quality = hScrollBarQuality.Value;
}
textBoxSessionCount.Text = "" + _videoProvider.ActiveSessions;
}
}
void MediaProviderSessionOpening(MediaProviderSession session)
{
if (InvokeRequired)
{
BeginInvoke(new MediaProviderChannel.SessionOpeningDelegate(MediaProviderSessionOpening), session);
}
else
{
int maxFPS = 15;
if (comboBoxFPS.SelectedItem != null)
{
Int32.TryParse(comboBoxFPS.SelectedItem.ToString(), out maxFPS);
}
if (session.FPS > maxFPS)
{
session.FPS = maxFPS;
}
if (session.Quality > hScrollBarQuality.Value)
{
session.Quality = hScrollBarQuality.Value;
}
textBoxSessionCount.Text = "" + _videoProvider.ActiveSessions;
}
}
void MetadataProviderSessionClosed(MediaProviderSession session)
{
if (InvokeRequired)
{
BeginInvoke(new Action <MediaProviderSession>(MetadataProviderSessionClosed), session);
}
else
{
textBoxSessionCount.Text = "" + _metadataProviderChannel.ActiveSessions;
}
}
/// <summary>
/// This is called when one of the sessions are closed.
/// In this sample we just update the active session counter for this channel.
/// </summary>
/// <param name="session"></param>
void MediaProviderSessionClosed(MediaProviderSession session)
{
if (InvokeRequired)
{
BeginInvoke(new MediaProviderChannel.SessionClosedDelegate(MediaProviderSessionClosed), session);
}
else
{
textBoxSessionCount.Text = "" + _videoProvider.ActiveSessions;
}
}
/// <summary>
/// This is called when one of the sessions are closed.
/// In this sample we just update the active session counter for this channel.
/// </summary>
/// <param name="session"></param>
void MetadataProviderSessionClosed(MediaProviderSession session)
{
if (InvokeRequired)
{
BeginInvoke(new Action <MediaProviderSession>(MetadataProviderSessionClosed), session);
}
else
{
textBoxSessionCount.Text = (_boundingBoxProviderChannel.ActiveSessions + _gpsProviderChannel.ActiveSessions + _nonStandardProviderChannel.ActiveSessions).ToString();
}
}
/// <summary>
/// For this sample, we provide JPEG frames.
/// </summary>
/// <param name="session"></param>
/// <returns></returns>
MediaData MediaProviderGetMediaData(MediaProviderSession session)
{
if (InvokeRequired)
{
// Get on the UI thread before executing the below code
return(Invoke(new MediaProviderChannel.GetMediaDataDelegate(MediaProviderGetMediaData), session) as MediaData);
}
var random = new Random(DateTime.UtcNow.Millisecond);
var metadata = new MetadataStream
{
NavigationalData = new NavigationalData
{
Altitude = _altitude,
Latitude = random.Next(-90, 90),
Longitude = random.Next(-180, 180)
}
};
_altitude += 0.01;
_metadataProviderChannel.QueueMetadata(metadata, DateTime.UtcNow);
var bitmap = new Bitmap(panelTimeDisplay.Width, panelTimeDisplay.Height);
panelTimeDisplay.DrawToBitmap(bitmap, new Rectangle(new Point(0, 0), panelTimeDisplay.Size));
var mediaData = new MediaData();
using (var ms = new MemoryStream())
{
var qualityParam = new EncoderParameter(Encoder.Quality, session.Quality);
bitmap.Save(ms, GetJpegEncoder(), new EncoderParameters(1)
{
Param = new[] { qualityParam }
});
ms.Seek(0, SeekOrigin.Begin);
mediaData.Bytes = new byte[ms.Length];
ms.Read(mediaData.Bytes, 0, (int)ms.Length);
}
mediaData.DateTime = DateTime.UtcNow;
return(mediaData);
}
/// <summary>
/// This method is called when a new session is about to be created.
/// This method should validate the requested session parameters, and change if needed.
/// If unable to handle more sessions for this channel, you can throw an Exception.
/// </summary>
/// <param name="session"></param>
void MetadataProviderSessionOpening(MediaProviderSession session)
{
if (InvokeRequired)
{
BeginInvoke(new Action <MediaProviderSession>(MetadataProviderSessionOpening), session);
}
else
{
textBoxSessionCount.Text = (_boundingBoxProviderChannel.ActiveSessions /*+ _gpsProviderChannel.ActiveSessions + _nonStandardProviderChannel.ActiveSessions*/).ToString();
if (sourceComboBox.SelectedIndex == 0)
{
DumpProperties(_boundingBoxProviderChannel.ServerParameterDictionary);
}
if (sourceComboBox.SelectedIndex == 1)
{
DumpProperties(_gpsProviderChannel.ServerParameterDictionary);
}
if (sourceComboBox.SelectedIndex == 2)
{
DumpProperties(_nonStandardProviderChannel.ServerParameterDictionary);
}
}
}
void MetadataProviderParametersChanged(MediaProviderSession session, MetadataProviderChannel channel)
{
//TODO - we should stored the changed parameters on disk, to ensure we have them for next application execution
DumpIfChannelIsShown(channel.Channel, new Dictionary <string, string>(channel.ServerParameterDictionary));
}
