private void VideoStreamWnd_Shown(object sender, EventArgs e)
{
try
{
project = ((MainForm)this.MdiParent).Project;
VideoDataLine startDataLine = (VideoDataLine)dataStream.DataLines[0];
OpenVideo(startDataLine);
trackBar.Minimum = 0;
trackBar.Maximum = Convert.ToInt32(dataStream.Length * reader.FrameRate);
SetFrameByTime(dataStream.StartTime);
this.Text = "Video Stream: " + dataStream.ShortName;
Refresh();
}
catch (Exception ex)
{
reader = null;
logger.WriteLineError(ex.ToString());
MessageBox.Show("Error during opening the file: " + ex.Message, "Error during opening video file", MessageBoxButtons.OK, MessageBoxIcon.Error);
DialogResult result = MessageBox.Show("Do you want to reload stream for appropriate video format?", "Reloading stream!", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
if (result == DialogResult.OK)
{
dataStream.WriteMetadata(logger);
MessageBox.Show("Stream reloaded! Open stream again!", "Open stream again!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
this.Close();
}
}
private void listFiles_DrawItem(object sender, DrawItemEventArgs e)
{
if (e.Index < 0)
{
return;
}
VideoDataLine videoDataLine = listFiles.Items[e.Index] as VideoDataLine;
e.DrawBackground();
Graphics g = e.Graphics;
if ((currentDataLine != null) && (currentDataLine == videoDataLine))
{
g.FillRectangle(new SolidBrush(Color.Red), e.Bounds);
}
else
{
g.FillRectangle(new SolidBrush(Color.White), e.Bounds);
}
if ((e.State & DrawItemState.Selected) == DrawItemState.Selected)
{
g.DrawString(videoDataLine.ToString(), e.Font, new SolidBrush(Color.Blue), new PointF(e.Bounds.X, e.Bounds.Y));
}
else
{
g.DrawString(videoDataLine.ToString(), e.Font, new SolidBrush(Color.Black), new PointF(e.Bounds.X, e.Bounds.Y));
}
e.DrawFocusRectangle();
}
public void SetFrameByTime(DateTime time)
{
lblStatus.Text = "Req.: " + time.ToString("yyyy-MM-dd HH:mm:ss.fff");
VideoDataLine bestDataLine = null;
foreach (var dataLine in dataStream.DataLines)
{
VideoDataLine videoDataLine = dataLine as VideoDataLine;
if ((time >= dataLine.TimeStamp) && (time < dataLine.TimeStamp.Add(videoDataLine.Length)))
{
bestDataLine = videoDataLine;
}
}
if (bestDataLine != null)
{
lblStatus.Text += "File: " + bestDataLine.VideoFileName;
if (currentDataLine != bestDataLine)
{
OpenVideo(bestDataLine);
currentFrame = -1;
}
double dt = new TimeSpan((time.Ticks - bestDataLine.TimeStamp.Ticks)).TotalSeconds;
int frame = Convert.ToInt32(dt * reader.FrameRate);
SetFrame(frame);
}
else
{
frameBox.Image = null;
}
}
public TimeFeature(DataStream stream, VideoDataLine dataLine, DateTime currentTime, HotFrame hotFrame)
{
this.DataStream = stream;
this.OriginalTime = currentTime;
this.FileTime = dataLine.FileTimeStamp;
this.FileName = dataLine.VideoFileName;
this.GlobalTime = hotFrame.Timestamp;
}
private void updateFileList()
{
listFiles.Items.Clear();
foreach (DataLine dataLine in dataStream.DataLines)
{
VideoDataLine videoDataLine = dataLine as VideoDataLine;
listFiles.Items.Add(videoDataLine);
}
listFiles.Refresh();
}
private void OpenVideo(VideoDataLine dataLine)
{
if (this.currentDataLine != null)
{
reader.Close();
}
try
{
reader = new FileCapture(project.Folder + "\\" + dataStream.SubFolder + "\\" + dataLine.VideoFileName);
reader.Open();
timer.Interval = Convert.ToInt32((1 / reader.FrameRate) * 1000);
currentDataLine = dataLine;
lblStatus.Text += "Current file: " + dataLine.VideoFileName;
}
catch (Exception ex)
{
lblStatus.Text = "Error: " + ex.Message;
logger.WriteLineError("Error occured: " + ex.Message);
throw ex;
}
}
