/// <summary>
/// get details of the stream...raw data and start tiume etc
/// set up the stream senders associated with us. we have n, one active and the rest acting as buffers
/// </summary>
public StreamPlayer(RtpSession session, int newStreamID, ConferencePlayerPC cppc)
{
int maxFrameSize, maxFrameCount, maxBufferSize;
// This occasionally throws due to bad data. Let ConferencePlayer handle it.
DBHelper.GetStreamStatistics(newStreamID, out this.firstStreamTicks, out maxFrameSize, out maxFrameCount, out maxBufferSize);
streamID = newStreamID;
totalFramesSent = 0;
totalBytesSent = 0;
totalLateness = 0;
buffers = new BufferPlayer[Constants.BuffersPerStream];
perfCounter = cppc;
string payload;
DBHelper.GetStreamAndParticipantDetails(streamID, out name, out payload, out cname, out privExtns);
streamPayload = (PayloadType)Enum.Parse(typeof(PayloadType), payload, true);
// for delayed buffers (late joiners), we create the rtpSender later
this.rtpSession = session;
Trace.WriteLine(string.Format(CultureInfo.CurrentCulture,
"Playing back stream: {0}; payload: {1}; name: {2} : {3}", streamID, streamPayload, cname, name));
// buffer n buffers worth of data
long startingTick = this.firstStreamTicks;
for (int i = 0; i < buffers.Length; i++)
{
buffers[i] = new BufferPlayer(streamID, maxFrameSize, maxFrameCount, maxBufferSize);
buffers[i].Populate(startingTick);
startingTick = buffers[i].LastTick + 1;
perfCounter.AddInstanceForCollection(buffers[i]);
}
// first stream is initially active
activeBufferIndex = 0;
activeBuffer = buffers[activeBufferIndex];
}
/// <summary>
/// get details of the stream...raw data and start tiume etc
/// set up the stream senders associated with us. we have n, one active and the rest acting as buffers
/// </summary>
public StreamPlayer( RtpSession session, int newStreamID, ConferencePlayerPC cppc)
{
int maxFrameSize, maxFrameCount, maxBufferSize;
// This occasionally throws due to bad data. Let ConferencePlayer handle it.
DBHelper.GetStreamStatistics( newStreamID, out this.firstStreamTicks, out maxFrameSize, out maxFrameCount, out maxBufferSize);
streamID = newStreamID;
totalFramesSent = 0;
totalBytesSent = 0;
totalLateness = 0;
buffers = new BufferPlayer[Constants.BuffersPerStream];
perfCounter = cppc;
string payload;
DBHelper.GetStreamAndParticipantDetails( streamID, out name, out payload, out cname, out privExtns );
streamPayload = (PayloadType)Enum.Parse( typeof(PayloadType), payload, true );
// for delayed buffers (late joiners), we create the rtpSender later
this.rtpSession = session;
Trace.WriteLine("Playing back stream: "+streamID+"; payload: "+streamPayload+"; name: "+ (cname + " : " +name));
// buffer n buffers worth of data
long startingTick = this.firstStreamTicks;
for ( int i = 0; i < buffers.Length; i++)
{
buffers[i] = new BufferPlayer( streamID, maxFrameSize, maxFrameCount, maxBufferSize);
buffers[i].Populate( startingTick );
startingTick = buffers[i].LastTick + 1;
perfCounter.AddInstanceForCollection(buffers[i]);
}
// first stream is initially active
activeBufferIndex = 0;
activeBuffer = buffers[activeBufferIndex];
}
public void Play( IPEndPoint venue, int[] streams, bool receiveData )
{
if( this.playing )
throw new InvalidOperationException("ConferencePlayer::Play called when the player is already playing.");
if( streams == null )
throw new ArgumentNullException("streams cannot be null");
venueIPE = venue;
// Create an RtpSession
RtpParticipant me = new RtpParticipant(Constants.PersistenceCName, Constants.PersistenceName + " (Playing)");
rtpSession = new RtpSession(venue, me, true, receiveData);
// Hook the static stream-ended event
StreamPlayer.EndOfStreamReached += new EventHandler(EndOfStreamReached);
// Create a new perf counter for this ConferencePlayer instance
this.perfCounter = new ConferencePlayerPC(venue.ToString());
// Keep track of the streamPlayers
ArrayList avStreams = new ArrayList();
ArrayList otherStreams = new ArrayList();
// Find the first stored ticks of all the streams while creating them...
this.firstStoredTick = long.MaxValue;
// Create all of our StreamPlayers (one per stream...)
for ( int i = 0; i < streams.Length; i++)
{
StreamPlayer newStream = null;
try
{
newStream = new StreamPlayer(rtpSession, streams[i], perfCounter);
}
catch( Exception ex )
{
eventLog.WriteEntry(String.Format("Stream with bad data reached. Continuing playback of all other streams."
+ " Stream ID: {0}. Exception: \n {1}", streams[i], ex.ToString()),
EventLogEntryType.Warning, ArchiveServiceEventLog.ID.BadStreamInDB);
}
if( newStream != null )
{
perfCounter.AddInstanceForCollection( newStream );
if( newStream.FirstStreamsTicks < this.firstStoredTick )
this.firstStoredTick = newStream.FirstStreamsTicks;
// Add the new StreamPlayer to the right collection
// Pri3: Consider other methods here. Maybe a smarter detection of large frame sizes,
// or initializing the stream so it has enough packets ahead of time?
if( newStream.Payload == PayloadType.dynamicAudio || newStream.Payload == PayloadType.dynamicVideo )
avStreams.Add(newStream);
else // RTDocs stream or other large-payload stream, most likely
otherStreams.Add(newStream);
}
}
// Start the StreamsGroupPlayers
// Pri2: Change this to be compatable with use of the "playback speed" feature.
long startTime = DateTime.Now.Ticks + 1500*Constants.TicksPerMs; // we'll start in 1.5 seconds (for init time)
// Create the StreamsGroupPlayer(s)
avPlayer = new StreamsGroupPlayer(avStreams, this.firstStoredTick, startTime);
otherPlayer = new StreamsGroupPlayer(otherStreams, this.firstStoredTick, startTime);
this.playing = true;
}
public void Play(IPEndPoint venue, int[] streams, bool receiveData)
{
if (this.playing)
{
throw new InvalidOperationException(Strings.PlayerAlreadyPlayingError);
}
if (streams == null)
{
throw new ArgumentNullException(Strings.StreamsCannotBeNull);
}
venueIPE = venue;
// Create an RtpSession
RtpParticipant me = new RtpParticipant(Constants.PersistenceCName,
string.Format(CultureInfo.CurrentCulture, Strings.Playing, Constants.PersistenceName));
rtpSession = new RtpSession(venue, me, true, receiveData);
// andrew: connect to diagnostic server
rtpSession.VenueName = "Archived: " + venue.ToString();
// Hook the static stream-ended event
StreamPlayer.EndOfStreamReached += new EventHandler(EndOfStreamReached);
// Create a new perf counter for this ConferencePlayer instance
this.perfCounter = new ConferencePlayerPC(venue.ToString());
// Keep track of the streamPlayers
ArrayList avStreams = new ArrayList();
ArrayList otherStreams = new ArrayList();
// Find the first stored ticks of all the streams while creating them...
this.firstStoredTick = long.MaxValue;
// Create all of our StreamPlayers (one per stream...)
for (int i = 0; i < streams.Length; i++)
{
StreamPlayer newStream = null;
try
{
newStream = new StreamPlayer(rtpSession, streams[i], perfCounter);
}
catch (Exception ex)
{
eventLog.WriteEntry(String.Format(CultureInfo.CurrentCulture, Strings.StreamWithBadDataReached,
streams[i], ex.ToString()), EventLogEntryType.Warning,
ArchiveServiceEventLog.ID.BadStreamInDB);
}
if (newStream != null)
{
perfCounter.AddInstanceForCollection(newStream);
if (newStream.FirstStreamsTicks < this.firstStoredTick)
{
this.firstStoredTick = newStream.FirstStreamsTicks;
}
// Add the new StreamPlayer to the right collection
// Pri3: Consider other methods here. Maybe a smarter detection of large frame sizes,
// or initializing the stream so it has enough packets ahead of time?
if (newStream.Payload == PayloadType.dynamicAudio || newStream.Payload == PayloadType.dynamicVideo)
{
avStreams.Add(newStream);
}
else // RTDocs stream or other large-payload stream, most likely
{
otherStreams.Add(newStream);
}
}
}
// Start the StreamsGroupPlayers
// Pri2: Change this to be compatable with use of the "playback speed" feature.
long startTime = DateTime.Now.Ticks + 1500 * Constants.TicksPerMs; // we'll start in 1.5 seconds (for init time)
// Create the StreamsGroupPlayer(s)
avPlayer = new StreamsGroupPlayer(avStreams, this.firstStoredTick, startTime);
otherPlayer = new StreamsGroupPlayer(otherStreams, this.firstStoredTick, startTime);
this.playing = true;
}
