nextFrame: Grab the next frame from a video stream

In swarm-lab/videoplayR: Functions to process video and image files with R

Description

This function grabs the next available frame from a vpStream object and returns a vpImage object that can be manipulated using the videoplayR image and video manipulation toolbox.

Usage

nextFrame(stream)

Arguments

stream

The vpStream object from which the frame should be grabbed.

Details

The vpImage object created by the grabFrame function is not a persistent object, but a pointer to a C++ object that cannot be saved for reuse in a different session.

Value

This function returns a vpImage object.

See Also

readStream, release, vpStream, vpImage

Examples

stream <- readStream(0)
frame <- nextFrame(stream)
imshow(frame)
release(stream)

swarm-lab/videoplayR documentation built on May 30, 2019, 9:36 p.m.