diff options
author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-08-10 20:58:49 +0400 |
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committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-08-14 14:17:10 +0400 |
commit | 2701f6cc6aca624e6d26f1bd3bd6190b8024ea6b (patch) | |
tree | a7a5265cc56ee2fd4a45fbdf7ec70a85d8a875f1 /doc/filters.texi | |
parent | 0a2295815dac9a924513555ce1f7491c1f5f1765 (diff) |
lavfi: port libmpcodecs delogo filter
The ported filter supports named option parsing and more YUV formats.
Diffstat (limited to 'doc/filters.texi')
-rw-r--r-- | doc/filters.texi | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 8e10bc66a8..528a67f08c 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -426,6 +426,58 @@ indicates never reset and return the largest area encountered during playback. @end table +@section delogo + +Suppress a TV station logo by a simple interpolation of the surrounding +pixels. Just set a rectangle covering the logo and watch it disappear +(and sometimes something even uglier appear - your mileage may vary). + +The filter accepts parameters as a string of the form +"@var{x}:@var{y}:@var{w}:@var{h}:@var{band}", or as a list of +@var{key}=@var{value} pairs, separated by ":". + +The description of the accepted parameters follows. + +@table @option + +@item x, y +Specify the top left corner coordinates of the logo. They must be +specified. + +@item w, h +Specify the width and height of the logo to clear. They must be +specified. + +@item band, t +Specify the thickness of the fuzzy edge of the rectangle (added to +@var{w} and @var{h}). The default value is 4. + +@item show +When set to 1, a green rectangle is drawn on the screen to simplify +finding the right @var{x}, @var{y}, @var{w}, @var{h} parameters, and +@var{band} is set to 4. The default value is 0. + +@end table + +Some examples follow. + +@itemize + +@item +Set a rectangle covering the area with top left corner coordinates 0,0 +and size 100x77, setting a band of size 10: +@example +delogo=0:0:100:77:10 +@end example + +@item +As the previous example, but use named options: +@example +delogo=x=0:y=0:w=100:h=77:band=10 +@end example + +@end itemize + @section drawbox Draw a colored box on the input image. |