ws.schild.jave.filters

Class ZoomPanFilter

java.lang.Object

ws.schild.jave.filters.Filter

ws.schild.jave.filters.ZoomPanFilter

All Implemented Interfaces:

VideoFilter

public class ZoomPanFilter
extends Filter

Constructor Summary

Constructors

Constructor and Description
ZoomPanFilter()
ZoomPanFilter(Integer durationFrames, VideoSize outputSize, String zoomExpression, String xExpression, String yExpression) A simple usage of the zoompan filter.
ZoomPanFilter(Integer durationFrames, VideoSize inputSize, VideoSize outputSize) A "top to bottom" zoom and pan of an image/video using the zoompan filter.

Method Summary

Methods inherited from class ws.schild.jave.filters.Filter

addInputLabel, addNamedArgument, addOrderedArgument, addOutputLabel, getExpression

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ZoomPanFilter

public ZoomPanFilter()

ZoomPanFilter

public ZoomPanFilter(Integer durationFrames,
                     VideoSize inputSize,
                     VideoSize outputSize)

A "top to bottom" zoom and pan of an image/video using the zoompan filter.

This instance of zoompan will animate gently using a sigmoid function. The first third of the video is focused on the beginning of the image, the last third is focused on the bottom part of the image, and the middle section will animate gracefully between the two.

It is expected that the input video is of the same aspect ratio as the output video. If zooming in to a video of a different size, try using the PadFilter is used to pad the source image/video to the same aspect ratio as ouptputSize

Parameters:

durationFrames - The number of frames to emit for this zoompan filter. Default FPS is 25.

inputSize - The size of the original image/video this filter is zooming around in.

outputSize - The size of the resulting video after the zoompan filter is applied.

ZoomPanFilter

public ZoomPanFilter(Integer durationFrames,
                     VideoSize outputSize,
                     String zoomExpression,
                     String xExpression,
                     String yExpression)

A simple usage of the zoompan filter.

Parameters:

durationFrames - The number of frames to emit for this zoompan filter. Default FPS is 25.

outputSize - The size of the resulting video after the zoompan filter is applied.

zoomExpression - An expression that represents the current zoom level.

xExpression - An expression that represents the current x location.

yExpression - An expression that represents the current y location.