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drawtext: extend/clarify examples in the filter description

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Stefano Sabatini
2011-04-02 11:42:16 +02:00
parent 7e3373d2cf
commit 7dd29fb606
1 changed files with 14 additions and 4 deletions
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18
doc/filters.texi
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@@ -464,12 +464,22 @@ Default value is 4.
For example the command:
@example
drawtext="fontfile=FreeSerif.ttf: text='Test Text': x=100: y=50: fontsize=24: fontcolor=yellow@@0.2: boxcolor=red@@0.2: box=1"
drawtext="fontfile=/usr/share/fonts/truetype/freefont/FreeSerif.ttf: text='Test Text'"
@end example
will draw 'Test Text' with font FreeSerif of size 24 at position
(100,50), text color is yellow, and draw a red box around text. Both
the text and the box have an opacity of 20%.
will draw "Test Text" with font FreeSerif, using the default values
for the optional parameters.
The command:
@example
drawtext="fontfile=/usr/share/fonts/truetype/freefont/FreeSerif.ttf: text='Test Text':\
x=100: y=50: fontsize=24: fontcolor=yellow@@0.2: box=1: boxcolor=red@@0.2"
@end example
will draw 'Test Text' with font FreeSerif of size 24 at position x=100
and y=50 (counting from the top-left corner of the screen), text is
yellow with a red box around it. Both the text and the box have an
opacity of 20%.
Note that the double quotes are not necessary if spaces are not used
within the parameter list.