From 51c5e924b9e54a5a2c2162b348bafc1c83d1009c Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefasab@gmail.com>
Date: Tue, 8 Sep 2015 15:52:36 +0200
Subject: [PATCH] doc/codecs: extend documentation for the threads option

---
 doc/codecs.texi | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/doc/codecs.texi b/doc/codecs.texi
index da048b155e..b481b4a053 100644
--- a/doc/codecs.texi
+++ b/doc/codecs.texi
@@ -817,13 +817,17 @@ for codecs that support it. See also @file{doc/examples/export_mvs.c}.
 Deprecated, use mpegvideo private options instead.
 
 @item threads @var{integer} (@emph{decoding/encoding,video})
+Set the number of threads to be used, in case the selected codec
+implementation supports multi-threading.
 
 Possible values:
 @table @samp
-@item auto
-detect a good number of threads
+@item auto, 0
+automatically select the number of threads to set
 @end table
 
+Default value is @samp{auto}.
+
 @item me_threshold @var{integer} (@emph{encoding,video})
 Set motion estimation threshold.