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authorYu-Jie Lin <livibetter@gmail.com>2011-07-30 19:13:43 +0800
committerAnton Khirnov <anton@khirnov.net>2011-07-31 14:26:08 +0200
commit1442d295337dfc83fb66b20444c1b09a803ebb80 (patch)
tree187cf147fca63957498d0f84d6a6ffe04ec7d9f4 /doc/ffmpeg.texi
parent085791a92e239875fed560c34db87e98083f4092 (diff)
downloadffmpeg-1442d295337dfc83fb66b20444c1b09a803ebb80.tar.gz
x11grab: add show_region AVOption.
Draw the current grabbing region for indication. Signed-off-by: Yu-Jie Lin <livibetter@gmail.com> Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'doc/ffmpeg.texi')
-rw-r--r--doc/ffmpeg.texi13
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 8d3968dbf2..f3a4689d6c 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -916,6 +916,19 @@ ffmpeg -f x11grab -follow_mouse 100 -s cif -r 25 -i :0.0 /tmp/out.mpg
Only follows when mouse pointer reaches within 100 pixels to the edge of
region.
+@example
+ffmpeg -f x11grab -show_region 1 -s cif -r 25 -i :0.0+10,20 /tmp/out.mpg
+@end example
+
+The grabbing region will be indicated on screen.
+
+@example
+ffmpeg -f x11grab -follow_mouse centered -show_region 1 -s cif -r 25 -i :0.0 /tmp/out.mpg
+@end example
+
+The grabbing region indication will follow the mouse pointer.
+
+
@section Video and Audio file format conversion
Any supported file format and protocol can serve as input to ffmpeg: