public override bool RemoveCapability(ICapability capability)
{
bool ret = base.RemoveCapability(capability);
if (ret)
{
if (fgm != null)
{
fgm.Stop();
FilterGraph.RemoveFromRot(rotID);
FilterGraph.RemoveAllFilters(fgm);
fgm = null;
}
if (fgmEventMonitor != null)
{
fgmEventMonitor.FgmEvent -= new FgmEventMonitor.FgmEventHandler(FgmEvent);
fgmEventMonitor.Dispose();
fgmEventMonitor = null;
}
wmf = null;
}
return(ret);
}
private void DisposeFgm()
{
lock (fgmLock)
{
if (fgm != null)
{
// We need to manually unblock the stream in case there is no data flowing
if (rtpStream != null)
{
rtpStream.UnblockNextFrame();
}
FilterGraph.RemoveFromRot(rotID);
fgm.Stop();
FilterGraph.RemoveAllFilters(fgm);
fgm = null;
iBA = null;
}
}
}
/// <summary>
/// Remove all filters from a graph. If the graph is running, we will stop it first.
/// </summary>
/// <returns></returns>
public bool Teardown()
{
if (fgm == null)
{
playing = false;
return(true);
}
if (playing)
{
try
{
//If stream is paused Stop will hang unless we first call
//RtpStream.UnblockNextFrame
if (this.stream != null)
{
this.stream.UnblockNextFrame();
}
if (rotnum != 0)
{
FilterGraph.RemoveFromRot((uint)rotnum); //RemoveFromRot(rotnum);
}
fgm.Stop();
}
catch (Exception e)
{
Debug.WriteLine("Failed to stop graph: " + e.ToString());
}
playing = false;
}
FilterGraph.RemoveAllFilters(fgm);
fgm = null;
return(true);
}