From ce322f4c191f0262066698ea08084dd79b6228cb Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Tue, 30 Apr 2013 12:12:12 +0000
Subject: extractplanes filter

Signed-off-by: Paul B Mahol <onemda@gmail.com>
---
 doc/filters.texi | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'doc')

diff --git a/doc/filters.texi b/doc/filters.texi
index a62d9772f8..f80df081eb 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -3320,6 +3320,44 @@ Example:
 edgedetect=low=0.1:high=0.4
 @end example
 
+@section extractplanes
+
+Extract color channel components from input video stream into
+separate grayscale video streams.
+
+The filter accepts the following option:
+
+@table @option
+@item planes
+Set plane(s) to extract.
+
+Available values for planes are:
+@table @samp
+@item y
+@item u
+@item v
+@item a
+@item r
+@item g
+@item b
+@end table
+
+Choosing planes not available in the input will result in an error.
+That means you cannot select @code{r}, @code{g}, @code{b} planes
+with @code{y}, @code{u}, @code{v} planes at same time.
+@end table
+
+@subsection Examples
+
+@itemize
+@item
+Extract luma, u and v color channel component from input video frame
+into 3 grayscale outputs:
+@example
+ffmpeg -i video.avi -filter_complex 'extractplanes=y+u+v[y][u][v]' -map '[y]' y.avi -map '[u]' u.avi -map '[v]' v.avi
+@end example
+@end itemize
+
 @section fade
 
 Apply fade-in/out effect to input video.
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