From b2f2321cecf3a52b5b0c6408950de0e86ae8d625 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Tue, 11 Dec 2012 18:11:25 +0100
Subject: [PATCH] doc/filters: extend fps documentation.

---
 doc/filters.texi | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 8d4f5ca6bd..1f36b3a9f2 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -2408,13 +2408,33 @@ This filter accepts the following named parameters:
 @table @option
 
 @item fps
-Desired output framerate.
+Desired output framerate. The default is @code{25}.
 
 @item round
-Rounding method. The default is @code{near}.
+Rounding method.
+
+Possible values are:
+@table @option
+@item zero
+zero round towards 0
+@item inf
+round away from 0
+@item down
+round towards -infinity
+@item up
+round towards +infinity
+@item near
+round to nearest
+@end table
+The default is @code{near}.
 
 @end table
 
+Alternatively, the options can be specified as a flat string:
+@var{fps}[:@var{round}].
+
+See also the @ref{setpts} filter.
+
 @section framestep
 
 Select one frame every N.
@@ -4867,6 +4887,7 @@ sendcmd=f=test.cmd,drawtext=fontfile=FreeSerif.ttf:text='',hue
 @end example
 @end itemize
 
+@anchor{setpts}
 @section asetpts, setpts
 
 Change the PTS (presentation timestamp) of the input frames.