Hello，I used MIP SDK to develope a window form for export video.
I have a problem.
The code is as follows:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using VideoOS.Platform;
using VideoOS.Platform.SDK.Export;
using VideoOS.Platform.UI;
using VideoOS.Platform.Util;
using AVIExporter = VideoOS.Platform.Data.AVIExporter;
namespace ExportTest
{
public partial class MainForm : Form
{
private Item _cameraItem = null;
private string _path = null;
private Timer _timer = new Timer() { Interval = 100 };
VideoOS.Platform.Data.IExporter _exporter;
public MainForm()
{
InitializeComponent();
}
private void OnClose(object sender, EventArgs e)
{
if (_exporter != null)
{
_exporter.Cancel();
_exporter.EndExport();
_exporter.Close();
}
VideoOS.Platform.SDK.Environment.RemoveAllServers();
Close();
}
/// <summary>
/// Open the ItemPicker to let user select a camera
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonCameraSelect_Click(object sender, EventArgs e)
{
ItemPickerForm form = new ItemPickerForm();
form.KindFilter = Kind.Camera;
form.AutoAccept = true;
form.Init(Configuration.Instance.GetItems());
if(form.ShowDialog() == DialogResult.OK)
{
_cameraItem = form.SelectedItem;
buttonCameraSelect.Text = _cameraItem.Name;
if(_cameraItem != null && _path != null)
buttonExport.Enabled = true;
}
}
private void buttonDestination_Click(object sender, EventArgs e)
{
FolderBrowserDialog dialog = new FolderBrowserDialog();
if(dialog.ShowDialog() == DialogResult.OK)
{
_path = dialog.SelectedPath;
buttonDestination.Text = _path;
if (_cameraItem != null && _path != null)
buttonExport.Enabled = true;
}
}
private void buttonExport_Click(object sender, EventArgs e)
{
bool isStarted = false;
List<Item> audioSources = new List<Item>();
String destPath = _path;
if(dateTimePickerStart.Value > dateTimePickerEnd.Value)
{
MessageBox.Show("Start time need to be lower than end time");
return;
}
if (textBoxVideoFilename.Text == "")
{
MessageBox.Show("Please enter a filename for the MKV file.", "Enter Filename");
return;
}
_exporter = new VideoOS.Platform.Data.MKVExporter
{
Filename = textBoxVideoFilename.Text
};
destPath = Path.Combine(_path, "Exported Images\\" + MakeStringPathValid(_cameraItem.Name));
_exporter.Init();
_exporter.CameraList = new List<Item>() { _cameraItem };
_exporter.Path = destPath;
_exporter.AudioList = audioSources;
isStarted = _exporter.StartExport(dateTimePickerStart.Value.ToUniversalTime(), dateTimePickerEnd.Value.ToUniversalTime());
try
{
if (isStarted)
{
_timer.Tick += ShowProgress;
_timer.Start();
buttonExport.Enabled = false;
}
else
{
int lastError = _exporter.LastError;
string lastErrorString = _exporter.LastErrorString;
labelerror.Text = lastErrorString + " ( " + lastError + " )";
_exporter.EndExport();
}
}catch( Exception ex)
{
EnvironmentManager.Instance.ExceptionDialog("Start Export", ex);
}
}
private static string MakeStringPathValid(string unsafeString)
{
char[] invalidCharacters = Path.GetInvalidFileNameChars();
string result = unsafeString;
foreach (var invalidCharacter in invalidCharacters)
{
result = result.Replace(invalidCharacter, '_');
}
return result;
}
private void ShowProgress(object sender, EventArgs e)
{
if (_exporter != null)
{
int progress = _exporter.Progress;
int lastError = _exporter.LastError;
string lastErrorString = _exporter.LastErrorString;
if (progress >= 0)
{
progressBar.Value = progress;
if (progress == 100)
{
_timer.Stop();
labelerror.Text = "Done";
_exporter.EndExport();
_exporter = null;
}
}
if (lastError > 0)
{
progressBar.Value = 0;
labelerror.Text = lastErrorString + " ( " + lastError + " )";
if (_exporter != null)
{
_exporter.EndExport();
_exporter = null;
}
}
}
}
private void OnCancel(object sender, EventArgs e)
{
if (_exporter != null)
_exporter.Cancel();
}
}
}
window form:
Press the export button.The following error message appears.
I execute exportsample with success. But I develope this window form can not be execute. what is the problem?
Thanks!
