Merge commit '9a26ba971387a348e14f363ddcdcb5bba0b413d1'

[ffmpeg] / doc / indevs.texi

diff --git a/doc/indevs.texi b/doc/indevs.texi
index 82d3b226696b359d119ca58e835c720036abc51e..1a49293d31817a3e3cdabfa8eebed5fedd6d5553 100644 (file)
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -1102,6 +1102,16 @@ It may be necessary to disable it for remote displays (legacy x11grab
 only).
 @end table
 
+@subsection @var{grab_x} @var{grab_y} AVOption
+
+The syntax is:
+@example
+-grab_x @var{x_offset} -grab_y @var{y_offset}
+@end example
+
+Set the grabing region coordinates. The are expressed as offset from the top left
+corner of the X11 window. The default value is 0.
+
 @section decklink
 
 The decklink input device provides capture capabilities for Blackmagic