private void StartDevice(FilterInfo device)
{
CMyVideoCaptureDevice videoSource = new CMyVideoCaptureDevice(device.MonikerString);
videoSource.DeviceName = device.Name;
videoSource.NewFrame += new NewFrameEventHandler(NewFrame_Handler);
videoSource.Start();
}
private void button1_Click(object sender, EventArgs e)
{
if (comboBox1.SelectedIndex == -1)
{
MessageBox.Show("请选择设备录像！");
return;
}
this.Size = new Size(659, 415);
foreach (FilterInfo i in devices)
{
if (i.Name == this.comboBox1.SelectedItem.ToString())
{
currentDevice = i;
}
}
currentVideoSource = Camera.connectDevice(currentDevice);
if (this.comboBox2.SelectedIndex == -1)
{
currentVideoSource.DesiredFrameRate = 1;
}
else
{
currentVideoSource.DesiredFrameRate = int.Parse(this.comboBox2.SelectedItem.ToString());
}
currentVideoSource.DesiredFrameSize = new System.Drawing.Size(this.pixtureBox.Width, this.pixtureBox.Height);
currentVideoSource.NewFrame += videosource_NewFrame;
Camera.openDevice(currentVideoSource);
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = true;
button4.Enabled = true;
}
/// <summary>
/// 开启摄像功能
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnStart_Click(object sender, EventArgs e)
{
AForge.Video.DirectShow.FilterInfo videoDevice = (AForge.Video.DirectShow.FilterInfo)comboBox1.Items[comboBox1.SelectedIndex];
_videoSource = new VideoCaptureDevice(videoDevice.MonikerString);
_videoSource.NewFrame += VideoSource_NewFrame;// 更新帧图
_videoSource.Start();
}
private Webcam()
{
_videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
_currentDevice = _videoDevices.Cast<FilterInfo>().First();
_videoSource = new VideoCaptureDevice(_currentDevice.MonikerString);
_videoSource.NewFrame += _videoSource_NewFrame;
_takePicture = false;
}
private void OnCurrentDeviceChanged(FilterInfo filterInfo)
{
if (_currentDevice != null)
{
_currentDevice.Stop();
_currentDevice.NewFrame -= DeviceOnNewFrame;
}
_currentDevice = new VideoCaptureDevice(filterInfo.MonikerString);
CurrentDeviceCapabilities = new ObservableCollection<VideoCapabilities>(_currentDevice.VideoCapabilities);
SelectedDeviceCapabilities = CurrentDeviceCapabilities.FirstOrDefault();
_currentDevice.NewFrame += DeviceOnNewFrame;
}
/// <summary>
/// Create an instance of the filter.
/// </summary>
///
/// <param name="filterMoniker">Filter's moniker string.</param>
///
/// <returns>Returns filter's object, which implements <b>IBaseFilter</b> interface.</returns>
///
/// <remarks>The returned filter's object should be released using <b>Marshal.ReleaseComObject()</b>.</remarks>
///
public static object CreateFilter( string filterMoniker )
{
object filterObject = null;
object comObj = null;
ICreateDevEnum enumDev;
IEnumMoniker enumMon = null;
var devMon = new IMoniker[1];
try
{
// Get the system device enumerator
Type srvType = Type.GetTypeFromCLSID(Clsid.SystemDeviceEnum);
if (srvType == null)
throw new ApplicationException("Failed creating device enumerator");
// create device enumerator
comObj = Activator.CreateInstance(srvType);
enumDev = (ICreateDevEnum)comObj;
// Create an enumerator to find filters of specified category
Guid cat = FilterCategory.VideoInputDevice;
int hr = enumDev.CreateClassEnumerator(ref cat, out enumMon, 0);
if (hr != 0)
throw new ApplicationException("No devices of the category");
// Collect all filters
IntPtr n = IntPtr.Zero;
while (true)
{
// Get next filter
hr = enumMon.Next(1, devMon, n);
if ((hr != 0) || (devMon[0] == null))
break;
// Add the filter
var filter = new FilterInfo(devMon[0]);
if (filter.MonikerString == filterMoniker)
{
Guid filterId = typeof(IBaseFilter).GUID;
devMon[0].BindToObject(null, null, ref filterId, out filterObject);
break;
}
// Release COM object
Marshal.ReleaseComObject(devMon[0]);
devMon[0] = null;
}
}
catch
{
}
finally
{
// release all COM objects
enumDev = null;
if (comObj != null)
{
Marshal.ReleaseComObject(comObj);
comObj = null;
}
if (enumMon != null)
{
Marshal.ReleaseComObject(enumMon);
enumMon = null;
}
if (devMon[0] != null)
{
Marshal.ReleaseComObject(devMon[0]);
devMon[0] = null;
}
}
return filterObject;
//// filter's object
//object filterObject = null;
//// bind context and moniker objects
//IBindCtx bindCtx = null;
//IMoniker moniker = null;
//int n = 0;
//// create bind context
//if ( Win32.CreateBindCtx( 0, out bindCtx ) == 0 )
//{
// // convert moniker`s string to a moniker
// if ( Win32.MkParseDisplayName( bindCtx, filterMoniker, ref n, out moniker ) == 0 )
// {
// // get device base filter
// Guid filterId = typeof( IBaseFilter ).GUID;
// moniker.BindToObject( null, null, ref filterId, out filterObject );
// Marshal.ReleaseComObject( moniker );
// }
// Marshal.ReleaseComObject( bindCtx );
//}
//return filterObject;
}
// Collect filters of specified category
private void CollectFilters( Guid category )
{
object comObj = null;
ICreateDevEnum enumDev;
IEnumMoniker enumMon = null;
var devMon = new IMoniker[1];
try
{
// Get the system device enumerator
Type srvType = Type.GetTypeFromCLSID( Clsid.SystemDeviceEnum );
if ( srvType == null )
throw new ApplicationException( "Failed creating device enumerator" );
// create device enumerator
comObj = Activator.CreateInstance( srvType );
enumDev = (ICreateDevEnum) comObj;
// Create an enumerator to find filters of specified category
int hr = enumDev.CreateClassEnumerator( ref category, out enumMon, 0 );
if ( hr != 0 )
throw new ApplicationException( "No devices of the category" );
// Collect all filters
IntPtr n = IntPtr.Zero;
while ( true )
{
// Get next filter
hr = enumMon.Next( 1, devMon, n );
if ( ( hr != 0 ) || ( devMon[0] == null ) )
break;
// Add the filter
var filter = new FilterInfo( devMon[0] );
InnerList.Add( filter );
// Release COM object
Marshal.ReleaseComObject( devMon[0] );
devMon[0] = null;
}
// Sort the collection
InnerList.Sort( );
}
catch
{
}
finally
{
// release all COM objects
enumDev = null;
if ( comObj != null )
{
Marshal.ReleaseComObject( comObj );
comObj = null;
}
if ( enumMon != null )
{
Marshal.ReleaseComObject( enumMon );
enumMon = null;
}
if ( devMon[0] != null )
{
Marshal.ReleaseComObject( devMon[0] );
devMon[0] = null;
}
}
}
// Display property page for the specified object
private void DisplayPropertyPage( IntPtr parentWindow, object sourceObject )
{
try
{
// retrieve ISpecifyPropertyPages interface of the device
var pPropPages = (ISpecifyPropertyPages) sourceObject;
// get property pages from the property bag
CAUUID caGUID;
pPropPages.GetPages( out caGUID );
// get filter info
var filterInfo = new FilterInfo( _deviceMoniker );
// create and display the OlePropertyFrame
Win32.OleCreatePropertyFrame( parentWindow, 0, 0, filterInfo.Name, 1, ref sourceObject, caGUID.cElems, caGUID.pElems, 0, 0, IntPtr.Zero );
// release COM objects
Marshal.FreeCoTaskMem( caGUID.pElems );
}
catch
{
}
}
private void DeviceSetting_ApplyDevices(AForge.Video.DirectShow.FilterInfo cameraInfo, CSCore.CoreAudioAPI.MMDevice microphoneInfo, CSCore.CoreAudioAPI.MMDevice speakerInfo)
{
StopMedia();
StartMedia(cameraInfo, microphoneInfo, speakerInfo);
}
