TsgcTURNClient › Events › OnTURNChannelData

OnTURNChannelData Event

Fires when the client receives a ChannelData message relayed from a peer bound to a channel.

Syntax

property OnTURNChannelData: TsgcTURNDataChannelEvent;
// TsgcTURNDataChannelEvent = procedure(Sender: TObject; const aSocket: TsgcSocketConnection; const aChannelData: TsgcTURNChannelData) of object

Default Value

—

Remarks

Fires whenever the TURN server forwards a ChannelData message (RFC 5766 section 11.6) received from a peer that has a live channel binding. Read aChannelData.ChannelID to identify the peer associated with the binding and aChannelData.Data for the payload bytes. ChannelData has a 4-byte header only, so this event is the low-overhead counterpart to OnTURNDataIndication and is the preferred path for high-rate media.

Example

procedure TForm1.oTURNTURNChannelData(Sender: TObject;
  const aSocket: TsgcSocketConnection;
  const aChannelData: TsgcTURNChannelData);
begin
  DoLog('Channel ' + IntToStr(aChannelData.ChannelID) +
        ', ' + IntToStr(Length(aChannelData.Data)) + ' bytes');
end;

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