private void btStart_Click(object sender, RoutedEventArgs e)
{
if ((string)btStart.Content == "Stop")
{
_stopFlag = true;
Thread.Sleep(500);
_videoCapture?.Stop();
_videoPlayer?.Stop();
Thread.Sleep(500);
ProcessVideoDelegateMethod();
btStart.Content = "Start";
lbStatus.Content = string.Empty;
if (_tempBuffer != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(_tempBuffer);
_tempBuffer = IntPtr.Zero;
}
pnScreen.BeginInit();
pnScreen.Source = null;
pnScreen.EndInit();
}
else
{
_stopFlag = false;
btStart.IsEnabled = false;
lbStatus.Content = "Step 1: Searching video files";
_fragmentCount = 0;
_overlapFragmentCount = 0;
var engine = VFSimplePlayerEngine.LAV;
switch (cbEngine.SelectedIndex)
{
case 0:
engine = VFSimplePlayerEngine.DirectShow;
break;
case 1:
engine = VFSimplePlayerEngine.FFMPEG;
break;
case 2:
engine = VFSimplePlayerEngine.LAV;
break;
}
var adList = new List <string>();
_adVFPList = new List <VFPFingerPrint>();
foreach (string item in lbAdFiles.Items)
{
adList.Add(item);
}
lbStatus.Content = "Step 2: Getting fingerprints for ads files";
if (adList.Count == 0)
{
btStart.Content = "Start";
lbStatus.Content = string.Empty;
btStart.IsEnabled = true;
MessageBox.Show("Ads list is empty!");
return;
}
int progress = 0;
foreach (string filename in adList)
{
pbProgress.Value = progress;
string error = "";
VFPFingerPrint fp;
if (File.Exists(filename + ".vfsigx"))
{
fp = VFPFingerPrint.Load(filename + ".vfsigx");
}
else
{
var source = new VFPFingerprintSource(filename, engine);
foreach (var area in _ignoredAreas)
{
source.IgnoredAreas.Add(area);
}
fp = VFPAnalyzer.GetSearchFingerprintForVideoFile(source, ErrorCallback);
}
if (fp == null)
{
MessageBox.Show("Unable to get fingerprint for video file: " + filename + ". Error: " + error);
}
else
{
fp.Save(filename + ".vfsigx");
_adVFPList.Add(fp);
}
progress += 100 / adList.Count;
}
int fragmentDurationProperty = Convert.ToInt32(edFragmentDuration.Text);
if (fragmentDurationProperty != 0)
{
_fragmentDuration = fragmentDurationProperty * 1000;
}
else
{
var maxDuration = _adVFPList.Max((print => print.Duration));
long minfragmentDuration = ((((long)maxDuration.TotalMilliseconds + 1000) / 1000) + 1) * 1000;
_fragmentDuration = minfragmentDuration * 2;
}
pbProgress.Value = 100;
if (_tempBuffer != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(_tempBuffer);
_tempBuffer = IntPtr.Zero;
}
lbStatus.Content = "Step 3: Starting video preview";
if (cbSource.SelectedIndex == 0)
{
_videoCapture.Video_CaptureDevice_Name = cbVideoSource.Text;
_videoCapture.Video_CaptureDevice_Format = cbVideoFormat.Text;
_videoCapture.Video_CaptureDevice_FrameRate = Convert.ToDouble(cbVideoFrameRate.Text);
_videoCapture.Start();
}
else
{
string url = edNetworkSourceURL.Text;
//var ip = new IPCameraSourceSettings
// {
// URL =,
// Login = edNetworkSourceLogin.Text,
// Password = edNetworkSourcePassword.Text
// };
_videoPlayer.Filename = url;
_videoPlayer.MaximalSpeedPlayback = false;
switch (cbNetworkSourceEngine.SelectedIndex)
{
case 0:
_videoPlayer.Engine = VFSimplePlayerEngine.LAV;
break;
case 2:
_videoPlayer.Engine = VFSimplePlayerEngine.FFMPEG;
break;
}
_videoPlayer.Start();
}
lbStatus.Content = "Step 4: Getting data";
pbProgress.Value = 0;
lvResults.Items.Refresh();
btStart.IsEnabled = true;
btStart.Content = "Stop";
}
}