/// <summary>
/// Uses item picker for choosing camera
/// Initializes a JpegVideoSource with that camera
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonPickCamera_Click(object sender, EventArgs e)
{
if (_cameraBitmap != null)
{
_cameraBitmap.Dispose();
}
_cameraBitmap = null;
ItemPickerForm form = new ItemPickerForm();
form.KindFilter = Kind.Camera;
form.AutoAccept = true;
form.Init(Configuration.Instance.GetItems());
if (form.ShowDialog() == DialogResult.OK)
{
_selectItem = form.SelectedItem;
buttonPickCamera.Text = _selectItem.Name;
_jpegVideoSource = new JPEGVideoSource(_selectItem);
_jpegVideoSource.Init();
ShowImageFrom(DateTime.UtcNow);
buttonClear.Enabled = true;
buttonSearch.Enabled = true;
}
}
/// <summary>
/// Get the resolution of the latest recorded image
/// </summary>
static void GetRes()
{
var jpegSource = new JPEGVideoSource(_camera);
jpegSource.Init();
jpegSource.Height = 0;
jpegSource.Width = 0;
Console.WriteLine("Asking for the last recorded image from camera {0} ",
_camera.Name);
var jpegData = jpegSource.GetEnd();
if (jpegData == null)
{
Console.WriteLine("No recorded image from " + _camera.Name);
}
else
{
Console.WriteLine("The resolution of the last recorded image " +
"from camera {0} is ({1},{2})" + Environment.NewLine,
_camera.Name,
jpegData.Width,
jpegData.Height);
}
}
private void LoadItems(Item item)
{
foreach (var child in item.GetChildren())
{
if (child.FQID.Kind == Kind.Camera && child.HasChildren == VideoOS.Platform.HasChildren.No)
{
Cameras[child.FQID.ObjectId] = child;
var status = 0;
var jpegSource = new JPEGVideoSource(child);
try {
jpegSource.Init();
var jpegData = jpegSource.GetNearest(new DateTime()) as JPEGData;
File.WriteAllBytes($"C:/Snapshots/{child.Name}.jpg", jpegData.Bytes);
} catch (Exception e) {
Console.WriteLine(e.Message);
status = 1;
}
LstCameras.Items.Add(child.Name, status);
}
else
{
if (child.HasChildren != VideoOS.Platform.HasChildren.No)
{
LoadItems(child);
}
}
}
}
private void ShowReplay(Item camera, DateTime startDate, DateTime endDate)
{
Bitmap imageClear = new Bitmap(320, 240);
Graphics g = Graphics.FromImage(imageClear);
g.FillRectangle(Brushes.Black, 0, 0, 320, 240);
g.Dispose();
SetImage(imageClear);
JPEGVideoSource source = new JPEGVideoSource(camera);
source.Init();
List <object> resultList = source.Get(startDate, new TimeSpan(endDate.Ticks), 150);
//TODO remove ---TEST source.Close();
_stop = true;
if (resultList != null)
{
this.UIThread(() => label2.Text = $"Number of frames: {resultList.Count}");
if (resultList.Count > 0)
{
_stop = false;
btnStart.Enabled = _stop;
btnStop.Enabled = !_stop;
}
}
while (!_stop)
{
int avgInterval = 12000 / resultList.Count;
foreach (JPEGData jpeg in resultList)
{
MemoryStream ms = new MemoryStream(jpeg.Bytes);
Bitmap image = new Bitmap(ms);
SetImage(image);
ms.Close();
Thread.Sleep(avgInterval);
if (_stop)
{
break;
}
}
if (!_stop)
{
Thread.Sleep(1500);
}
}
source.Close(); //TODO
}
private void ShowReplay()
{
Image imageClear = new Bitmap(320, 240);
Graphics g = Graphics.FromImage(imageClear);
g.FillRectangle(Brushes.Black, 0, 0, 320, 240);
g.Dispose();
Invoke(new SetImageDelegate(SetImage), new[] { imageClear });
JPEGVideoSource source = new JPEGVideoSource(_selectedItem);
source.Width = pictureBox2.Width;
source.Height = pictureBox2.Height;
source.SetKeepAspectRatio(true, true);
source.Init();
var interval = TimeSpan.FromSeconds(VideoIntervalSeconds);
List <object> resultList = source.Get(DateTime.Now - interval, interval, 150);
_stop = true;
if (resultList != null)
{
Invoke((MethodInvoker) delegate() { label2.Text = "Number of frames: " + resultList.Count; });
if (resultList.Count > 0)
{
_stop = false;
}
}
while (!_stop)
{
int avgInterval = 1000 * VideoIntervalSeconds / (ReplaySpeedFactor * resultList.Count);
foreach (JPEGData jpeg in resultList)
{
MemoryStream ms = new MemoryStream(jpeg.Bytes);
Image image = new Bitmap(ms);
Invoke(new SetImageDelegate(SetImage), new[] { image });
ms.Close();
Thread.Sleep(avgInterval);
if (_stop)
{
break;
}
}
if (!_stop)
{
Thread.Sleep(1500);
}
}
source.Close();
}
private void JPEGFetchThread()
{
bool errorRecovery = false;
while (!_stop)
{
if (_performCloseVideoSource)
{
if (_jpegVideoSource != null)
{
_jpegVideoSource.Close();
_jpegVideoSource = null;
}
_performCloseVideoSource = false;
}
if (_newlySelectedItem != null)
{
_selectedItem = _newlySelectedItem;
_jpegVideoSource = new JPEGVideoSource(_selectedItem);
if (checkBoxAspect.Checked)
{
// Keeping aspect ratio can only work when the Media Toolkit knows the actual displayed area
_jpegVideoSource.Width = pictureBox.Width;
_jpegVideoSource.Height = pictureBox.Height;
_jpegVideoSource.SetKeepAspectRatio(checkBoxAspect.Checked, checkBoxFill.Checked); // Must be done before Init
}
try
{
_jpegVideoSource.Init();
JPEGData jpegData = _currentShownTime == DateTime.MinValue ? _jpegVideoSource.GetBegin() : _jpegVideoSource.GetAtOrBefore(_currentShownTime) as JPEGData;
if (jpegData != null)
{
_requestInProgress = true;
ShowJPEG(jpegData);
}
else
{
ShowError(""); // Clear any error messages
}
_newlySelectedItem = null;
errorRecovery = false;
}
catch (Exception ex)
{
if (ex is CommunicationMIPException)
{
ShowError("Connection lost to server ...");
}
else
{
ShowError(ex.Message);
}
errorRecovery = true;
_jpegVideoSource = null;
_newlySelectedItem = _selectedItem; // Redo the Initialization
}
}
if (errorRecovery)
{
Thread.Sleep(3000);
continue;
}
if (_setNewResolution && _jpegVideoSource != null && _requestInProgress == false)
{
try
{
_jpegVideoSource.Width = _newWidth;
_jpegVideoSource.Height = _newHeight;
_jpegVideoSource.SetWidthHeight();
_setNewResolution = false;
JPEGData jpegData;
jpegData = _jpegVideoSource.GetAtOrBefore(_currentShownTime) as JPEGData;
if (jpegData != null)
{
_requestInProgress = true;
_currentShownTime = DateTime.MinValue;
ShowJPEG(jpegData);
}
}
catch (Exception ex)
{
if (ex is CommunicationMIPException)
{
ShowError("Connection lost to recorder...");
}
else
{
ShowError(ex.Message);
}
errorRecovery = true;
_jpegVideoSource = null;
_newlySelectedItem = _selectedItem; // Redo the Initialization
}
}
if (_requestInProgress == false && _jpegVideoSource != null && _nextCommand != MyPlayCommand.None)
{
JPEGData jpegData = null;
try
{
switch (_nextCommand)
{
case MyPlayCommand.Start:
jpegData = _jpegVideoSource.GetBegin();
break;
case MyPlayCommand.NextFrame:
jpegData = _jpegVideoSource.GetNext() as JPEGData;
break;
case MyPlayCommand.NextSequence:
jpegData = _jpegVideoSource.GetNextSequence();
break;
case MyPlayCommand.PrevFrame:
jpegData = _jpegVideoSource.GetPrevious();
break;
case MyPlayCommand.PrevSequence:
jpegData = _jpegVideoSource.GetPreviousSequence();
break;
case MyPlayCommand.End:
jpegData = _jpegVideoSource.GetEnd();
break;
}
} catch (Exception ex)
{
if (ex is CommunicationMIPException)
{
ShowError("Connection lost to recorder...");
}
else
{
ShowError(ex.Message);
}
errorRecovery = true;
_jpegVideoSource = null;
_newlySelectedItem = _selectedItem; // Redo the Initialization
}
if (jpegData != null)
{
_requestInProgress = true;
ShowJPEG(jpegData);
}
_nextCommand = MyPlayCommand.None;
}
if (_nextToFetchTime != DateTime.MinValue && _requestInProgress == false && _jpegVideoSource != null)
{
bool willResultInSameFrame = false;
// Lets validate if we are just asking for the same frame
if (_currentTimeInformation != null)
{
if (_currentTimeInformation.PreviousTime < _nextToFetchTime &&
_currentTimeInformation.NextTime > _nextToFetchTime)
{
willResultInSameFrame = true;
}
}
if (willResultInSameFrame)
{
Debug.WriteLine("Now Fetch ignored: " + _nextToFetchTime.ToLongTimeString() + " - nextToFetch=" + _nextToFetchTime.ToLongTimeString());
// Same frame -> Ignore request
_requestInProgress = false;
_nextToFetchTime = DateTime.MinValue;
}
else
{
Debug.WriteLine("Now Fetch: " + _nextToFetchTime.ToLongTimeString());
DateTime time = _nextToFetchTime;
_nextToFetchTime = DateTime.MinValue;
try
{
DateTime localTime = time.Kind == DateTimeKind.Local ? time : time.ToLocalTime();
DateTime utcTime = time.Kind == DateTimeKind.Local ? time.ToUniversalTime() : time;
BeginInvoke(
new MethodInvoker(delegate() { textBoxAsked.Text = localTime.ToString("yyyy-MM-dd HH:mm:ss.fff"); }));
JPEGData jpegData;
jpegData = _jpegVideoSource.GetAtOrBefore(utcTime) as JPEGData;
if (jpegData == null && _mode == PlaybackPlayModeData.Stop)
{
jpegData = _jpegVideoSource.GetNearest(utcTime) as JPEGData;
}
if (_mode == PlaybackPlayModeData.Reverse)
{
while (jpegData != null && jpegData.DateTime > utcTime)
{
jpegData = _jpegVideoSource.GetPrevious();
}
}
else if (_mode == PlaybackPlayModeData.Forward)
{
if (jpegData != null && jpegData.DateTime < utcTime)
{
jpegData = _jpegVideoSource.Get(utcTime) as JPEGData;
}
}
if (jpegData != null)
{
_requestInProgress = true;
ShowJPEG(jpegData);
}
}
catch (Exception ex)
{
if (ex is CommunicationMIPException)
{
ShowError("Connection lost to server ...");
}
else
{
ShowError(ex.Message);
}
errorRecovery = true;
_jpegVideoSource = null;
_newlySelectedItem = _selectedItem; // Redo the Initialization
}
}
}
Thread.Sleep(5);
}
_fetchThread = null;
}
