public LivePlayer(IntPtr playWndHandle, NvrPreviewSettings previewSettings)
{
PreviewSettings = previewSettings ?? throw new ArgumentNullException(nameof(previewSettings));
PlayWndHandlePtr = playWndHandle;
RealPlayHandle = RealPlayPort = -1;
RealDataCallBackFunc = null;
DrawCallBackFunc = null;
}
/// <summary>
/// Start Preview in realtime.
/// <para><paramref name="playWndHandle"/> - window handle, on fitch will be drawing.</para>
/// <para><paramref name="previewSettings"/> - preview settings.</para>
/// </summary>
public void StartPreview(IntPtr playWndHandle, NvrPreviewSettings previewSettings)
{
if (livePlayer_.RealPlayHandle != -1)
{
throw new NvrBadLogicException("Call StopPreview before calling StartPreview");
}
if (!NvrUserSession.IsSessionValid())
{
throw new NvrBadLogicException("Call StartPreview when NvrUserSession is invalid");
}
livePlayer_ = new LivePlayer(playWndHandle, previewSettings);
CHCNetSDK.NET_DVR_PREVIEWINFO previewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO()
{
lChannel = NvrUserSession.UserSessionState.SelectedChannelNum,
dwStreamType = livePlayer_.PreviewSettings.StreamType,
dwLinkMode = (uint)livePlayer_.PreviewSettings.LinkMode,
bBlocked = livePlayer_.PreviewSettings.IsBlocked,
dwDisplayBufNum = livePlayer_.PreviewSettings.DisplayBufNum,
byPreviewMode = (byte)livePlayer_.PreviewSettings.PreviewMode
};
switch (previewSettings.PreviewHandleMode)
{
case PreviewHandleType.Direct:
livePlayer_.RealDataCallBackFunc = null;
previewInfo.hPlayWnd = livePlayer_.PlayWndHandlePtr;
break;
case PreviewHandleType.CallBack:
livePlayer_.RealDataCallBackFunc = new CHCNetSDK.REALDATACALLBACK(realDataCallBack); // Real-time stream callback function
previewInfo.hPlayWnd = IntPtr.Zero;
break;
}
livePlayer_.RealPlayHandle = CHCNetSDK.NET_DVR_RealPlay_V40(NvrUserSession.UserSessionState.UserId, ref previewInfo, livePlayer_.RealDataCallBackFunc, IntPtr.Zero);
if (livePlayer_.RealPlayHandle == -1)
{
throw new NvrSdkException(CHCNetSDK.NET_DVR_GetLastError(), "NET_DVR_RealPlay_V40 failed: " + livePlayer_.RealPlayHandle);
}
if (previewSettings.PreviewHandleMode == PreviewHandleType.Direct)
{
livePlayer_.DrawCallBackFunc = new CHCNetSDK.DRAWFUN(drawCallBack);
if (!CHCNetSDK.NET_DVR_RigisterDrawFun(livePlayer_.RealPlayHandle, livePlayer_.DrawCallBackFunc, 0))
{
invokeOnPreviewErrorEvent(PlayCtrl.PlayM4_GetLastError(livePlayer_.RealPlayPort), "NET_DVR_RigisterDrawFun failed");
}
}
debugInfo("NET_DVR_RealPlay_V40 succ!");
}
public MainWindow()
{
InitializeComponent();
textBox4.Text = getAppConfiguration("NvrIp");
textBox3.Text = getAppConfiguration("NvrPort");
textBox1.Text = getAppConfiguration("NvrUserName");
textBox2.Text = getAppConfiguration("NvrUserPassword");
liveViewService_.OnException += appendLogOnUiThread;
NvrPreviewSettings previewSettings = liveViewService_.NvrPreviewSettings;
numericUpDown1.Value = previewSettings.StreamType;
numericUpDown2.Value = previewSettings.DisplayBufNum;
checkBox1.Checked = previewSettings.IsPassbackRecord;
checkBox2.Checked = previewSettings.IsBlocked;
comboBox2.Items.AddRange(Enum.GetNames(typeof(PreviewLinkModeType)));
comboBox2.SelectedIndex = (int)previewSettings.LinkMode;
comboBox3.Items.AddRange(Enum.GetNames(typeof(PreviewQualityType)));
comboBox3.SelectedIndex = (int)previewSettings.PreviewQuality;
comboBox4.Items.AddRange(Enum.GetNames(typeof(PreviewModeType)));
comboBox4.SelectedIndex = (int)previewSettings.PreviewMode;
comboBox5.Items.AddRange(Enum.GetNames(typeof(PreviewHandleType)));
comboBox5.SelectedIndexChanged += (object sender, EventArgs e) => {
if (comboBox5.SelectedIndex == (int)PreviewHandleType.Direct)
{
subtleSettingsGB.Enabled = false;
}
else
{
subtleSettingsGB.Enabled = true;
}
};
comboBox5.SelectedIndex = (int)previewSettings.PreviewHandleMode;
previewPanel.Enabled = isLogedIn_;
}
