[FFmpeg-cvslog] doc/filters:ddagrab: elaborate on the semantics of framerate

[Anton Khirnov]

ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Sun Nov 19 12:35:26 2023 +0100| [6a22d800419fd4b492d65cac0910fda515c2dc3d] | committer: Anton Khirnov

doc/filters:ddagrab: elaborate on the semantics of framerate

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6a22d800419fd4b492d65cac0910fda515c2dc3d
---

 doc/filters.texi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 27437c4a36..de19d130cc 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -28256,7 +28256,12 @@ Only affects hardware cursors. If a game or application renders its own cursor,
 it'll always be captured.
 
 @item framerate
-Framerate at which the desktop will be captured.
+Maximum framerate at which the desktop will be captured - the interval between
+successive frames will not be smaller than the inverse of the framerate. When
+the desktop is not being updated often enough, the filter will duplicate
+a previous frame. Note that there is no background buffering going on, so when
+the filter is not polled often enough then the actual inter-frame interval may
+be significantly larger.
 
 Defaults to 30 FPS.