From 92d71714bfa81ec29ecf073aa9684ceee02591ca Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date: Wed, 16 Jun 2010 19:16:20 +0000
Subject: [PATCH] Document how to set boolean options.

Originally committed as revision 23632 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 doc/fftools-common-opts.texi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/fftools-common-opts.texi b/doc/fftools-common-opts.texi
index b011e73bd3..992008c39d 100644
--- a/doc/fftools-common-opts.texi
+++ b/doc/fftools-common-opts.texi
@@ -6,6 +6,11 @@ powers of 10. The 'B' postfix multiplies the value for 8, and can be
 appended after another postfix or used alone. This allows using for
 example 'KB', 'MiB', 'G' and 'B' as postfix.
 
+Options which do not take arguments are boolean options, and set the
+corresponding value to true. They can be set to false by prefixing
+with "no" the option name, for example using "-nofoo" in the
+commandline will set to false the boolean option with name "foo".
+
 @section Generic options
 
 These options are shared amongst the ff* tools.