C# Class AForge.Video.DirectShow.FileVideoSource

Video source for video files.

The video source provides access to video files. DirectShow is used to access video files.

Sample usage:

// create video source FileVideoSource videoSource = new FileVideoSource( fileName ); // set NewFrame event handler videoSource.NewFrame += new NewFrameEventHandler( video_NewFrame ); // start the video source videoSource.Start( ); // ... // signal to stop videoSource.SignalToStop( ); // ... // New frame event handler, which is invoked on each new available video frame private void video_NewFrame( object sender, NewFrameEventArgs eventArgs ) { // get new frame Bitmap bitmap = eventArgs.Frame; // process the frame }
Inheritance: IVideoSource
Mostra file Open project: holisticware-admin/MonoVersal.AForgeNET Class Usage Examples

Public Methods

Method Description
FileVideoSource ( ) : System

Initializes a new instance of the FileVideoSource class.

FileVideoSource ( string fileName ) : System

Initializes a new instance of the FileVideoSource class.

SignalToStop ( ) : void

Signal video source to stop its work.

Signals video source to stop its background thread, stop to provide new frames and free resources.

Start ( ) : void

Start video source.

Starts video source and return execution to caller. Video source object creates background thread and notifies about new frames with the help of NewFrame event.

Stop ( ) : void

Stop video source.

Stops video source aborting its thread.

Since the method aborts background thread, its usage is highly not preferred and should be done only if there are no other options. The correct way of stopping camera is signaling it stop and then waiting for background thread's completion.

WaitForStop ( ) : void

Wait for video source has stopped.

Waits for source stopping after it was signalled to stop using SignalToStop method.

Protected Methods

Method Description
OnNewFrame ( Bitmap image ) : void

Notifies client about new frame.

Private Methods

Method Description
Free ( ) : void

Free resource.

WorkerThread ( ) : void

Worker thread.

Method Details

FileVideoSource() public method

Initializes a new instance of the FileVideoSource class.
public FileVideoSource ( ) : System
return System

FileVideoSource() public method

Initializes a new instance of the FileVideoSource class.
public FileVideoSource ( string fileName ) : System
fileName string Video file name.
return System

OnNewFrame() protected method

Notifies client about new frame.
protected OnNewFrame ( Bitmap image ) : void
image System.Drawing.Bitmap New frame's image.
return void

SignalToStop() public method

Signal video source to stop its work.
Signals video source to stop its background thread, stop to provide new frames and free resources.
public SignalToStop ( ) : void
return void

Start() public method

Start video source.
Starts video source and return execution to caller. Video source object creates background thread and notifies about new frames with the help of NewFrame event.
public Start ( ) : void
return void

Stop() public method

Stop video source.

Stops video source aborting its thread.

Since the method aborts background thread, its usage is highly not preferred and should be done only if there are no other options. The correct way of stopping camera is signaling it stop and then waiting for background thread's completion.

public Stop ( ) : void
return void

WaitForStop() public method

Wait for video source has stopped.
Waits for source stopping after it was signalled to stop using SignalToStop method.
public WaitForStop ( ) : void
return void