Rvision: Basic Computer Vision Library

Description Usage Arguments Value Note Author(s) See Also Examples

Set or get the values of various properties of the Video or Stream object.

## S3 method for class 'Rcpp_Stream'
setProp(obj, property, value)

## S3 method for class 'Rcpp_Stream'
getProp(obj, property)

## S3 method for class 'Rcpp_Video'
setProp(obj, property, value)

## S3 method for class 'Rcpp_Video'
getProp(obj, property)

## S3 method for class 'Rcpp_VideoWriter'
setProp(obj, property, value)

## S3 method for class 'Rcpp_VideoWriter'
getProp(obj, property)

setProp(obj, property, value)

getProp(obj, property)

`obj`	A `Video` or `Stream` object.
`property`	A character string specifying the name of the property to modify (see details below for a complete list).
`value`	The new value of the property.

setProp returns TRUE is the property was set successfully. getProp returns a numeric value or a character string depending on property.

Video properties are:

POS_MSEC: Current position of the video file in milliseconds.
POS_FRAMES: 0-based index of the frame to be decoded/captured next.
POS_AVI_RATIO Relative position of the video file: 0=start of the film, 1=end of the film.
FRAME_WIDTH: Width in pixels of the frames in the video stream.
FRAME_HEIGHT: Height in pixels of the frames in the video stream.
FPS: Frame rate in frames per second.
FOURCC: 4-character FOURCC code of the codec
FRAME_COUNT: Number of frames in the video file.

Setting stream properties depends on a lot of things, mainly your operating system, the camera drivers installed on your coputer and the camera itself. As a consequence, setting stream values might not work at all with your installation.

Stream properties are: