private void m_pSendTestSound_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();

            dlg.InitialDirectory = Application.StartupPath + "\\audio";
            if (dlg.ShowDialog(null) == DialogResult.OK)
            {
                wfrm_SendAudio frm = new wfrm_SendAudio(this, m_pRtpSession.Sessions[0], dlg.FileName);
                frm.Show();
            }
        }
        private void m_pToggleRun_Click(object sender, EventArgs e)
        {
            if (m_IsRunning)
            {
                m_IsRunning     = false;
                m_IsSendingTest = false;

                m_pRtpSession.Dispose();
                m_pRtpSession = null;

                m_pWaveOut.Dispose();
                m_pWaveOut = null;

                if (m_pRecordStream != null)
                {
                    m_pRecordStream.Dispose();
                    m_pRecordStream = null;
                }

                m_pOutDevices.Enabled       = true;
                m_pToggleRun.Text           = "Start";
                m_pRecord.Enabled           = true;
                m_pRecordFile.Enabled       = true;
                m_pRecordFileBrowse.Enabled = true;
                m_pRemoteIP.Enabled         = false;
                m_pRemotePort.Enabled       = false;
                m_pCodec.Enabled            = false;
                m_pToggleMic.Text           = "Send";
                m_pToggleMic.Enabled        = false;
                m_pSendTestSound.Enabled    = false;
                m_pSendTestSound.Text       = "Send";
                m_pPlayTestSound.Enabled    = false;
                m_pPlayTestSound.Text       = "Play";
            }
            else
            {
                if (m_pOutDevices.SelectedIndex == -1)
                {
                    MessageBox.Show(this, "Please select output device !", "Error:", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
                if (m_pRecord.Checked && m_pRecordFile.Text == "")
                {
                    MessageBox.Show(this, "Please specify record file !", "Error:", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }

                if (m_pRecord.Checked)
                {
                    m_pRecordStream = File.Create(m_pRecordFile.Text);
                }

                m_IsRunning = true;

                m_pWaveOut = new AudioOut(AudioOut.Devices[m_pOutDevices.SelectedIndex], 8000, 16, 1);

                m_pRtpSession = new RTP_MultimediaSession(RTP_Utils.GenerateCNAME());
                // --- Debug -----
                wfrm_RTP_Debug frmRtpDebug = new wfrm_RTP_Debug(m_pRtpSession);
                frmRtpDebug.Show();
                //-----------------
                // m_pRtpSession.CreateSession(new RTP_Address(IPAddress.Parse(m_pLocalIP.Text),(int)m_pLocalPort.Value,(int)m_pLocalPort.Value + 1),new RTP_Clock(0,8000));
                string ip          = "127.0.0.1";
                int    port        = 1100;
                int    remote_port = 20700;
                //RTP_Session session = m_pRtpSession.CreateSession(new RTP_Address(IPAddress.Parse(ip), port, port + 1), new RTP_Clock(0, 8000));
                //session.AddTarget(new RTP_Address(IPAddress.Parse("127.0.0.1"), remote_port, remote_port + 1));
                RTP_Session session = m_pRtpSession.CreateMulticastSession(new RTP_Address(IPAddress.Parse(ip), port, port + 1), new RTP_Clock(0, 8000), null);
                session.AddTarget(new RTP_Address(IPAddress.Parse("224.0.0.1"), remote_port, remote_port + 1));
                session.Payload = 0;
                session.Start();

                m_pOutDevices.Enabled       = false;
                m_pToggleRun.Text           = "Stop";
                m_pRecord.Enabled           = false;
                m_pRecordFile.Enabled       = false;
                m_pRecordFileBrowse.Enabled = false;
                m_pRemoteIP.Enabled         = true;
                m_pRemotePort.Enabled       = true;
                m_pCodec.Enabled            = true;
                m_pToggleMic.Enabled        = true;
                m_pSendTestSound.Enabled    = true;
                m_pSendTestSound.Text       = "Send";
                m_pPlayTestSound.Enabled    = true;
                m_pPlayTestSound.Text       = "Play";
            }


            wfrm_SendAudio frm = new wfrm_SendAudio(this, m_pRtpSession.Sessions[0], @"D:\_d\_PROJECTS\CisteraDesktopNotificationService\Lumisoft.Net.Rtp\Rtp Audio Demo\Rtp Audio Demo\bin\Debug\audio\futurama.raw");

            frm.Show();
        }