lavd/xv: add window id param

Device is able to use existing window, that can be a
part of existing GUI - instead of newly created one.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/doc/outdevs.texi b/doc/outdevs.texi
index bc94b9ed0c..2dadf6c6ba 100644
--- a/doc/outdevs.texi
+++ b/doc/outdevs.texi
@@ -388,19 +388,26 @@ For example, @code{dual-headed:0.1} would specify screen 1 of display
 Check the X11 specification for more detailed information about the
 display name format.
 
+@item window_id
+When set to non-zero value then device doesn't create new window,
+but uses existing one with provided @var{window_id}. By default
+this options is set to zero and device creates its own window.
+
 @item window_size
 Set the created window size, can be a string of the form
 @var{width}x@var{height} or a video size abbreviation. If not
 specified it defaults to the size of the input video.
+Ignored when @var{window_id} is set.
 
 @item window_x
 @item window_y
 Set the X and Y window offsets for the created window. They are both
 set to 0 by default. The values may be ignored by the window manager.
+Ignored when @var{window_id} is set.
 
 @item window_title
 Set the window title, if not specified default to the filename
-specified for the output device.
+specified for the output device. Ignored when @var{window_id} is set.
 @end table
 
 For more information about XVideo see @url{http://www.x.org/}.