ws.schild.jave.filters

Class DrawtextFilter

java.lang.Object

ws.schild.jave.filters.Filter

ws.schild.jave.filters.DrawtextFilter

All Implemented Interfaces:

VideoFilter

public class DrawtextFilter
extends Filter

Add text to a video. An implementation of the drawtext filter from the FFMPEG Documentation.

https://write.corbpie.com/how-to-do-a-text-watermark-in-ffmpeg/ -vf "drawtext=text='a watermark':x=10:y=H-th-10:fontfile=/pathto/font.ttf:fontsize=10:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=2"

Constructor Summary

Constructors

Constructor and Description
DrawtextFilter(String text, String posX, String posY)
DrawtextFilter(String text, String posX, String posY, File fontFile, Double fontSize, Color fontColor)
DrawtextFilter(String text, String posX, String posY, String fontName, Double fontSize, Color fontColor)

Method Summary

Modifier and Type	Method and Description
DrawtextFilter	setBorder(Integer borderWidth, Color color)
DrawtextFilter	setBox(Integer borderWidth, Color color) Used to draw a box around text using the background color.
DrawtextFilter	setLineSpacing(Integer lineSpacing)
DrawtextFilter	setShadow(Color shadowColor, Integer shadowX, Integer shadowY)

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

DrawtextFilter

public DrawtextFilter(String text,
                      String posX,
                      String posY)

Parameters:

text - The text string to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no file is specified with the parameter textfile.

posX - X Position of watermark text. The expressions which specify the offsets where text will be drawn within the video frame. They are relative to the top/left border of the output image. The default value of x and y is "0".

posY - Y Position of watermark text. The expressions which specify the offsets where text will be drawn within the video frame. They are relative to the top/left border of the output image. The default value of x and y is "0".

DrawtextFilter

public DrawtextFilter(String text,
                      String posX,
                      String posY,
                      String fontName,
                      Double fontSize,
                      Color fontColor)
               throws IllegalArgumentException

Parameters:

text - The text string to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no file is specified with the parameter textfile.

posX - X Position of watermark text. The expressions which specify the offsets where text will be drawn within the video frame. They are relative to the top/left border of the output image. The default value of x and y is "0".

posY - Y Position of watermark text. The expressions which specify the offsets where text will be drawn within the video frame. They are relative to the top/left border of the output image. The default value of x and y is "0".

fontName - The font family to be used for drawing text. By default Sans.

fontSize - The font size to be used for drawing text. The default value of fontsize is 16.

fontColor - The color to be used for drawing fonts. The default value of fontcolor is "black".

Throws:

IllegalArgumentException

DrawtextFilter

public DrawtextFilter(String text,
                      String posX,
                      String posY,
                      File fontFile,
                      Double fontSize,
                      Color fontColor)
               throws IllegalArgumentException

Parameters:

text - The text string to be drawn. The text must be a sequence of UTF-8 encoded characters. This parameter is mandatory if no file is specified with the parameter textfile.

posX - X Position of watermark text. The expressions which specify the offsets where text will be drawn within the video frame. They are relative to the top/left border of the output image. The default value of x and y is "0".

posY - Y Position of watermark text. The expressions which specify the offsets where text will be drawn within the video frame. They are relative to the top/left border of the output image. The default value of x and y is "0".

fontFile - The font file to be used for drawing text. The path must be included. This parameter is mandatory if the fontconfig support is disabled.

fontSize - The font size to be used for drawing text. The default value of fontsize is 16.

fontColor - The color to be used for drawing fonts. The default value of fontcolor is "black".

Throws:

IllegalArgumentException

Method Detail

setShadow

public DrawtextFilter setShadow(Color shadowColor,
                                Integer shadowX,
                                Integer shadowY)

Parameters:

shadowColor - Color of shadow

shadowX - X Position of shadow, relative to text

shadowY - Y Position of shadow, relative to text

Returns:

this instance

setBox

public DrawtextFilter setBox(Integer borderWidth,
                             Color color)

Used to draw a box around text using the background color.

Parameters:

borderWidth - Set the width of the border to be drawn around the box using boxcolor. The default value of boxborderw is 0.

color - The color to be used for drawing box around text. The default value of boxcolor is "white".

Returns:

this instance.

setBorder

public DrawtextFilter setBorder(Integer borderWidth,
                                Color color)

Parameters:

borderWidth - Set the width of the border to be drawn around the text using bordercolor. The default value of borderw is 0.

color - Set the color to be used for drawing border around text. The default value of bordercolor is "black".

Returns:

this instance

setLineSpacing

public DrawtextFilter setLineSpacing(Integer lineSpacing)

Parameters:

lineSpacing - Set the line spacing in pixels of the border to be drawn around the box using box. The default value of line_spacing is 0.

Returns:

this instance