private void ShutdownStream(RTSPClient rtspClient, int exitCode = 1)
{
var scs = ((OurRtspClient)rtspClient).scs; // alias
if (scs.session != null)
{
var someSubsessionsWereActive = false;
var iter = new MediaSubsessionIterator(scs.session);
MediaSubsession subsession;
while ((subsession = iter.Next()) != null)
{
if (subsession.sink != null)
{
Medium.Close(subsession.sink);
subsession.sink = null;
if (subsession.RtcpInstance() != null)
{
subsession.RtcpInstance().SetByeHandler(null, IntPtr.Zero, 1);
// in case the server sends a RTCP "BYE" while handling "TEARDOWN"
}
someSubsessionsWereActive = true;
}
}
if (someSubsessionsWereActive)
{
// Send a RTSP "TEARDOWN" command, to tell the server to shutdown the stream.
// Don't bother handling the response to the "TEARDOWN".
rtspClient.SendTeardownCommand(scs.session, null, null);
}
}
Console.Error.WriteLine(rtspClient + "Closing the stream.");
Medium.Close(rtspClient);
// Note that this will also cause this stream's "StreamClientState" structure to get reclaimed.
if (--rtspClientCount == 0)
{
// The final stream has ended, so exit the application now.
// (Of course, if you're embedding this code into your own application, you might want to comment this out.)
Environment.Exit(exitCode);
// If you choose *not* to "exit()" the application (i.e., if you comment out the call to "exit()" above),
// and you don't intend to do anything more with this "TaskScheduler" and "UsageEnvironment",
// then you can also reclaim the (small) memory used by these objects by doing the following.
// (However, you must not do this until after you have left the event loop.)
/*
* TaskScheduler* scheduler = &(env.taskScheduler());
* env.reclaim();
* delete scheduler;
*/
}
}
private void SubsessionAfterPlaying(IntPtr clientData)
{
var subsession = new MediaSubsession(clientData);
var rtspClient = new RTSPClient(subsession.miscPtr);
// Begin by closing this subsession's stream:
Medium.Close(subsession.sink);
subsession.sink = null;
// Next, check whether *all* subsessions' streams have now been closed:
var session = subsession.ParentSession();
var iter = new MediaSubsessionIterator(session);
while ((subsession = iter.Next()) != null)
{
if (subsession.sink != null)
{
return; // this subsession is still active
}
}
// All subsessions' streams have now been closed, so shutdown the client:
ShutdownStream(rtspClient);
}