Class VLDSCapture.TVLDSCapture

Revision as of 02:44, 11 June 2013 (view source) David Alm (Talk | contribs) (Automated Syncronization with Documentation) ← Older edit		Latest revision as of 00:30, 26 June 2013 (view source) David Alm (Talk | contribs) (Automated Syncronization with Documentation)
(2 intermediate revisions by one user not shown)
Line 28:		Line 28:
	=== C# (.NET): ===		=== C# (.NET): ===
	<code>		<code>
−	'''public ref class''' TVLDSCapture : [[Class LPComponent.TLPComponent|Mitov.VideoLab.Component]]	+	'''public ref class''' DSCapture : [[Class LPComponent.TLPComponent|Mitov.VideoLab.Component]]
	</code>		</code>
	== Summary ==		== Summary ==

---

Latest revision as of 00:30, 26 June 2013

This is a Beta Read Only version of this page. Please review and send recommendations to mitov@mitov.com. We will enable the editing as soon as we are happy with the overall Wiki site.

Package: VideoLabBasicPkg

Unit: VLDSCapture

Inherits: TLPComponent

Contents 1 Syntax 1.1 Delphi: 1.2 C++ Builder: 1.3 Visual C++ (MFC): 1.4 C# (.NET): 2 Summary 3 Description 4 Properties 4.1 Published 4.2 Public 5 Methods 5.1 Public 6 Pins 7 Events

Syntax

Delphi:

type TVLDSCapture = class( TLPComponent )

C++ Builder:

class TVLDSCapture : public TLPComponent

Visual C++ (MFC):

class CTVLDSCapture : public CTLPComponent

C# (.NET):

public ref class DSCapture : Mitov.VideoLab.Component

Summary

Captures Video from device using DirectShow.

Description

Requires DirectShow 8.1 or higher.

If you don't want to use DirectShow use the TVLCapture component instead.

DirectShow based video capture component.

Use this component to capture video data from a capturing device such as TV Tuner or Camcorder.

To capture data from a device, place the component on a form, select the driver of the device to use for capturing, set the Enabled property of the component to True, and connect the output pin to an InputPin of a component capable of receiving video data, as example a TVLAVILogger, TVLImageDisplay or TVLDSImageDisplay.

Diagram:

Properties

Published

• Enabled - Enables/Disables the capture.
• VideoPreview - Controls the video preview.
• AudioPreview - Enables Audio Preview.
• VideoSize - Desired video frame size.
• FrameRate - Capture Frame Rate.
• VideoFormat - Desired capture video format - RGB or YUY2.
• AudioFormat - Specifies the desired audio capture format.
• TVTuner - TV Tuner settings.
• ClosedCaptions - Closed Caption settings.
• DVResolution - Specifies the desired DV resolution.
• VideoCaptureDevice - Desired video input device(s).
• AudioCaptureDevice - Desired audio input device(s).
• VideoSources - List of video capture sources.
• AudioSources - List of audio capture sources.
• Adjustment - Adjustments for the picture quality.
• StillImage - Still Image settings.
• CameraControl - Camera control settings.
• UseHardwareCompression - Specifies if the device should use hardware compression if available.
• CaptureFromPreview - Specifies if the video capture will be from a preview (Dropping some frames).
• Graph - The DirectShow Graph.

Public

• Height - Returns the Height of the video frame.
• Width - Returns the Width of the video frame.
• FramePeriod - Returns the period between the video frames.
• RunningAudioFormat - Returns information about the running audio format during the capture.
• AspectRatio - Returns information about the video aspect ratio.
• Interlacing - Returns information about the video interlacing.
• CurrentDVResolution - Returns the current DV resolution.
• CaptionsAvailable - Closed Captions available.
• Opened - Returns True if the device is opened.
• DigitalVideo - Digital Video (DV) settings.
• VideoModes - List of supported video modes by the device.
• CrossbarDialogs - List of Crossbar dialogs.
• AvailableAudioDialogs - Set of available audio dialogs.
• AvailableVideoDialogs - Set of available video dialogs.

Methods

Public

• function Open() : Boolean - Opens the device.
• procedure Close(ACloseDevices : Boolean) - Closes the device.
• procedure Start() - Starts the capture.
• procedure Stop() - Stops the capture.
• function ShowVideoDialog(DialogType : TVLDSCaptureDialog) : Boolean - Shows a specified DirectShow video dialog.
• function ShowAudioDialog(DialogType : TALDSCaptureDialog) : Boolean - Shows a specified DirectShow audio dialog.

Pins

• OutputPin - The Video Output Pin of the component.
• CaptionOutputPin - The Closed Caption Video Output Pin.
• AudioOutputPin - The Audio Output Pin of the component.

Events

• OnStop - Occurs when the capture is stopped.