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JPEGStream Class
JPEG video source.
Inheritance Hierarchy
SystemObject
  Accord.VideoJPEGStream

Namespace:  Accord.Video
Assembly:  Accord.Video (in Accord.Video.dll) Version: 3.8.0
Syntax
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public class JPEGStream : IVideoSource
Request Example View Source

The JPEGStream type exposes the following members.

Constructors
  NameDescription
Public methodJPEGStream
Initializes a new instance of the JPEGStream class.
Public methodJPEGStream(String)
Initializes a new instance of the JPEGStream class.
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Properties
  NameDescription
Public propertyBytesReceived
Received bytes count.
Public propertyForceBasicAuthentication
Force using of basic authentication when connecting to the video source.
Public propertyFrameInterval
Frame interval.
Public propertyFramesReceived
Received frames count.
Public propertyIsRunning
State of the video source.
Public propertyLogin
Login value.
Public propertyPassword
Password value.
Public propertyPreventCaching
Use or not caching.
Public propertyProxy
Gets or sets proxy information for the request.
Public propertyRequestTimeout
Request timeout value.
Public propertySeparateConnectionGroup
Use or not separate connection group.
Public propertySource
Video source.
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Methods
  NameDescription
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodSignalToStop
Signal video source to stop its work.
Public methodStart
Start video source.
Public methodStop
Stop video source.
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodWaitForStop
Wait for video source has stopped.
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Events
  NameDescription
Public eventNewFrame
New frame event.
Public eventPlayingFinished
Video playing finished event.
Public eventVideoSourceError
Video source error event.
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Extension Methods
  NameDescription
Public Extension MethodHasMethod
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.)
Public Extension MethodIsEqual
Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices.
(Defined by Matrix.)
Public Extension MethodTo(Type)Overloaded.
Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.)
Public Extension MethodToTOverloaded.
Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.)
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Remarks

The video source constantly downloads JPEG files from the specified URL.

Sample usage:

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// create JPEG video source
JPEGStream stream = new JPEGStream( "some url" );
// set NewFrame event handler
stream.NewFrame += new NewFrameEventHandler( video_NewFrame );
// start the video source
stream.Start( );
// ...
// signal to stop
stream.SignalToStop( );
// ...

private void video_NewFrame( object sender, NewFrameEventArgs eventArgs )
{
    // get new frame
    Bitmap bitmap = eventArgs.Frame;
    // process the frame
}

Note Note
Some cameras produce HTTP header, which does not conform strictly to standard, what leads to .NET exception. To avoid this exception the useUnsafeHeaderParsing configuration option of httpWebRequest should be set, what may be done using application configuration file.

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<configuration>
    <system.net>
        <settings>
            <httpWebRequest useUnsafeHeaderParsing="true" />
        </settings>
    </system.net>
</configuration>
See Also