components.qt.qtdisplay

class QtDisplay(**config)

Bases: Transformer, object

Display images in a Qt window.

This is a “pass through” component that can be inserted anywhere in a pipeline to display the images at that point.

The displayed image can be enlarged or reduced in size by setting the expand and shrink config values. The size changing is done within OpenGL.

The framerate config item sets a target rate (default value 25 fps). If the incoming video cannot keep up then frames will be repeated. Otherwise the entire processing pipeline is slowed down to supply images at the correct rate.

Config
title	str	Window title.
expand	int	Image up-conversion factor.
shrink	int	Image down-conversion factor.
framerate	int	Target frame rate.
repeat	bool	Repeat frames until next one arrives.
sync	bool	Synchronise to video card frame rate.
stats	bool	Show actual frame rate statistics.

event_loop

alias of QtEventLoop

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Comments or questions? Please email jim@jim-easterbrook.me.uk.