Package ws.schild.jave.filters

Class FilterGraph

java.lang.Object

ws.schild.jave.filters.FilterGraph

All Implemented Interfaces:

VideoFilter

Direct Known Subclasses:

FilterAndWatermark, OverlayWatermark

public class FilterGraph
extends java.lang.Object
implements VideoFilter

A filtergraph as described by FFMPEG Documentation.

A filtergraph can optionally start with sws_flags for scaling of outputs and is then composed of a semi-colon separated series of filterchains.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<FilterChain>	chains
private java.util.Optional<java.lang.String>	swsFlags

Constructor Summary

Constructors

Constructor	Description
FilterGraph()	Create an empty filtergraph.
FilterGraph(java.lang.String swsFlags, FilterChain... chains)	Create a filtergraph with a specified list of filterchains and specified sws_flags.
FilterGraph(FilterChain... chains)	Create a filtergraph with a specified list of filterchains.

Method Summary

Modifier and Type	Method	Description
FilterGraph	addChain(FilterChain chain)	Add a filterchain to this filtergraph.
java.lang.String	getExpression()	The expression to be used in the video filter argument to ffmpeg
FilterGraph	setSwsFlags(java.lang.String swsFlags)	set the sws_flags to pass to libavfilter scale filters.

Methods inherited from class java.lang.Object

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

Field Detail

swsFlags

private java.util.Optional<java.lang.String> swsFlags

chains

private java.util.List<FilterChain> chains

Constructor Detail

FilterGraph

public FilterGraph()

Create an empty filtergraph.

FilterGraph

public FilterGraph(FilterChain... chains)

Create a filtergraph with a specified list of filterchains.

Parameters:

chains - The list of filterchains to be used in this filtergraph.

FilterGraph

public FilterGraph(java.lang.String swsFlags,
                   FilterChain... chains)

Create a filtergraph with a specified list of filterchains and specified sws_flags.

Parameters:

chains - The list of filterchains to be used in this filtergraph.

swsFlags - The sws_flags parameter to pass to libavfilter scale filters.

Method Detail

addChain

public FilterGraph addChain(FilterChain chain)

Add a filterchain to this filtergraph.

Parameters:

chain - The filterchain to add to this filtergraph.

Returns:

this FilterGraph for builder pattern magic

setSwsFlags

public FilterGraph setSwsFlags(java.lang.String swsFlags)

set the sws_flags to pass to libavfilter scale filters.

Parameters:

swsFlags - The flags that will; be passed to libavfilter scale filters.

Returns:

this FilterGraph for builder pattern magic

getExpression

public java.lang.String getExpression()

Description copied from interface: VideoFilter

The expression to be used in the video filter argument to ffmpeg

Specified by:

getExpression in interface VideoFilter

Returns:

A string that will be placed in the -vf or -filter_complex option to ffmpeg.