Online documentation for VideoFrameExporter

Generated 2006-03-17

Export image as URL on trigger (part of Media/Video/Analysis framework; see also Media/Video/Capture/Camera).

Description

Video processing component which can receive video frames (via sink) and when triggered converts to a JPEG image and exports the resulting URL.

Installation

See JMFVideoCaptureManager component for video capture requirements.

Configuration

Configured by setting configuration property. Allows value of the form "Export(0.5)", where the float parameter specifies the rate at which frames will be exported (Hz). Capture of a frame is also caused by setting trigger to true. Note: does not at present allow pre-chains of other audio processing steps; you must use a separate SimpleVideoProcessor.

Usage

Typically, link to sink from the source property of a JMFVideoCaptureDevice component (created by an JMFVideoCaptureManager component) or from the source property of a chained SimpleVideoProcessor component.

View the component web page using the URL in the configUrl property, which includes access to most recent input and processed image(s).

Technical Details

Part of the visionframework set of components; extends AbstractVideoProcessor. some visualisation facilities. Includes lots of code from the camera component.