From d2b78fe6b71f3637ea61c71c0dde1fe3e2544177 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bernd=20Ble=C3=9Fmann?= Date: Tue, 21 Jul 2015 12:48:33 +0200 Subject: libavfilter/vf_crop: implement process_command MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Bernd Bleßmann Signed-off-by: Michael Niedermayer --- doc/filters.texi | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'doc') diff --git a/doc/filters.texi b/doc/filters.texi index 28aaef3..348e8d7 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -3481,12 +3481,12 @@ It accepts the following parameters: @item w, out_w The width of the output video. It defaults to @code{iw}. This expression is evaluated only once during the filter -configuration. +configuration, or when the @samp{w} or @samp{out_w} command is sent. @item h, out_h The height of the output video. It defaults to @code{ih}. This expression is evaluated only once during the filter -configuration. +configuration, or when the @samp{h} or @samp{out_h} command is sent. @item x The horizontal position, in the input video, of the left edge of the output @@ -3646,6 +3646,22 @@ crop=in_w/2:in_h/2:y:10+10*sin(n/10) @end example @end itemize +@subsection Commands + +This filter supports the following commands: +@table @option +@item w, out_w +@item h, out_h +@item x +@item y +Set width/height of the output video and the horizontal/vertical position +in the input video. +The command accepts the same syntax of the corresponding option. + +If the specified expression is not valid, it is kept at its current +value. +@end table + @section cropdetect Auto-detect the crop size. -- cgit v1.1