// constructor:
public SSRCManager(MSR.LST.Net.Rtp.PayloadType payload)
{
eventLog = new EventLog("WMG", ".", "WMGCore");
raiseSourceRestored = false;
ActiveStreams = new Hashtable(); //All Cnames currently active with latest ssrc. key: cname, value: SSRC
//This is used to validate stream and obtain SSRC when running set snapshot occurs.
RunningSet = new Hashtable(); //The set of Cnames/SSRCs currently encoding.
//Note these may not be in ActiveStreams in the case where the stream was lost after encoding started.
//Also used to support various public methods which return data about encoding streams.
RestartTimes = new Hashtable(); //Time of last start/restart for each cname. Cname/datetime. This is used
//to help determine when to try restarting (maintenance thread) to clear a stuck stream.
AddedFlags = new Hashtable(); //SSRC/bool: Flag to indicate a stream was added after an event such as listener restart.
//Used to verify streams right before start encoding.
this.payload = payload; //The payload type for this instance
}
/// <summary>
/// Add CapabilityViewer Icons to a Participant Icon to graphically show an end user what CapabilityViewers are available for a Participant
/// (AKA are they sending video? sending audio? sharing a whiteboard? sharing a PowerPoint?
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
internal static Bitmap CreateDecoratedParticipantImage(Participant p)
{
Bitmap partBit = new Bitmap(p.Icon);
Graphics g = Graphics.FromImage(partBit);
// Indicate which stream's are available for the participant
bool sendingAudio = false;
bool sendingVideo = false;
foreach (ICapability cv in p.Capabilities)
{
// Pri2: Bind this to the object type somehow -- watch interdependencies
MSR.LST.Net.Rtp.PayloadType pt = (MSR.LST.Net.Rtp.PayloadType)cv.PayloadType;
if (pt == MSR.LST.Net.Rtp.PayloadType.dynamicVideo)
{
sendingVideo = true;
}
if (pt == MSR.LST.Net.Rtp.PayloadType.dynamicAudio)
{
sendingAudio = true;
}
}
// Draw audio, video, or audiovideo icons on bitmap
if (sendingAudio && sendingVideo)
{
System.IO.Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("MSR.LST.ConferenceXP.AudioAndVideoDecoration.png");
g.DrawImage(new Bitmap(stream), new Rectangle(new Point(1, 1), new Size(32, 24)));
}
else
if (sendingAudio)
{
System.IO.Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("MSR.LST.ConferenceXP.AudioDecoration.png");
g.DrawImage(new Bitmap(stream), new Rectangle(new Point(1, 1), new Size(32, 24)));
}
else
if (sendingVideo)
{
System.IO.Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("MSR.LST.ConferenceXP.VideoDecoration.png");
g.DrawImage(new Bitmap(stream), new Rectangle(new Point(1, 1), new Size(32, 24)));
}
// Write out the new bitmap
MemoryStream ms = new MemoryStream();
partBit.Save(ms, ImageFormat.Png);
return(new Bitmap(ms));
}
public void Connect()
{
try
{
// - Display wait message
Cursor.Current = Cursors.WaitCursor;
// - Get conferences ordered by start time
Conference[] confs = DBHelper.GetConferences();
// - Add items with parents: year, month, date
TreeNode lastNode = null;
Conference lastConf = null;
if (confs != null && confs.Length > 0)
{
this.Nodes.Clear();
}
foreach (Conference conf in confs)
{
TreeNode newNode = new TreeNode(string.Format(CultureInfo.CurrentCulture, Strings.Conference,
conf.Start.ToShortTimeString(), conf.Description));
newNode.Tag = conf;
newNode.ImageIndex = conferenceImageIndex;
newNode.SelectedImageIndex = conferenceImageIndex;
TreeNode parent = null;
bool tripSwitch = (lastNode == null);
#region Add parents for this node
// Optimize creation of parents by tracking the last node & using the knowledge
// that confs is organized by startTime (thank you, Mr. SQL, for the "order by" command.)
// My apologies for the lack of readability of this code. It _was_ worse...
if (tripSwitch || conf.Start.Year != lastConf.Start.Year)
{
parent = this.Nodes.Add(conf.Start.Year.ToString(CultureInfo.InvariantCulture));
parent.Tag = ParentNode.Year;
parent.ImageIndex = folderImageIndex;
parent.SelectedImageIndex = parent.ImageIndex;
if (tripSwitch != true)
{
tripSwitch = true;
}
}
if (tripSwitch || conf.Start.Month != lastConf.Start.Month)
{
if (!tripSwitch)
{
parent = lastNode.Parent.Parent.Parent;
}
parent = parent.Nodes.Add(conf.Start.ToString("MMMM", CultureInfo.InvariantCulture));
parent.Tag = ParentNode.Month;
parent.ImageIndex = folderImageIndex;
parent.SelectedImageIndex = parent.ImageIndex;
if (tripSwitch != true)
{
tripSwitch = true;
}
}
if (tripSwitch || conf.Start.Day != lastConf.Start.Day)
{
if (!tripSwitch)
{
parent = lastNode.Parent.Parent;
}
parent = parent.Nodes.Add(conf.Start.ToLongDateString());
parent.Tag = ParentNode.Date;
parent.ImageIndex = folderImageIndex;
parent.SelectedImageIndex = parent.ImageIndex;
}
else
{
parent = lastNode.Parent;
}
#endregion
// Pri3: Optimize getting of participants/streams. Try to find a way to do it only after
// each conference is expanded (note that a conference can't be "expanded" if it doesn't
// have any children yet. consider using a placeholder)
#region Get participants / streams
Participant[] participants = DBHelper.GetParticipants(conf.ConferenceID);
foreach (Participant part in participants)
{
// Create Participant node
TreeNode partNode = new TreeNode(string.Format(CultureInfo.CurrentCulture,
Strings.Participant, part.CName));
partNode.Tag = part;
partNode.ImageIndex = participantImageIndex;
partNode.SelectedImageIndex = partNode.ImageIndex;
// Add all of the streams for this participant
Stream[] streams = DBHelper.GetStreamsFaster(part.ParticipantID);
foreach (Stream str in streams)
{
TreeNode streamNode = partNode.Nodes.Add(string.Format(CultureInfo.CurrentCulture,
Strings.Stream, str.Name));
streamNode.Tag = str;
// Set the payload type icon
MSR.LST.Net.Rtp.PayloadType payload = (MSR.LST.Net.Rtp.PayloadType)Enum.Parse(typeof(MSR.LST.Net.Rtp.PayloadType), str.Payload);
if (payload == MSR.LST.Net.Rtp.PayloadType.dynamicVideo)
{
streamNode.ImageIndex = videoImageIndex;
}
else if (payload == MSR.LST.Net.Rtp.PayloadType.dynamicAudio)
{
streamNode.ImageIndex = soundImageIndex;
}
else //if( payload == MSR.LST.Net.Rtp.PayloadType.dynamicPresentation )
{
streamNode.ImageIndex = presentationImageIndex;
}
streamNode.SelectedImageIndex = streamNode.ImageIndex;
}
newNode.Nodes.Add(partNode);
}
#endregion
parent.Nodes.Add(newNode);
lastNode = newNode;
lastConf = conf;
}
foreach (TreeNode rootNode in base.Nodes)
{
rootNode.Expand();
}
this.canConnect = true;
// - Remove wait message
Cursor.Current = Cursors.Default;
}
catch
{
this.canConnect = false;
}
}
