[FFmpeg-cvslog] ffplay: add documentation for "s" key

[Werner Robitza]

ffmpeg | branch: master | Werner Robitza <werner.robitza at gmail.com> | Sun Dec 29 18:42:56 2013 +0100| [704c217ff32f008f7d7653a4619ccfddc43c78e2] | committer: Stefano Sabatini

ffplay: add documentation for "s" key

With various edits suggested by Stefano Sabatini and Clément Bœsch.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=704c217ff32f008f7d7653a4619ccfddc43c78e2
---

 doc/ffplay.texi |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/ffplay.texi b/doc/ffplay.texi
index 54b6f19..e68a686 100644
--- a/doc/ffplay.texi
+++ b/doc/ffplay.texi
@@ -188,6 +188,12 @@ Cycle program.
 @item w
 Show audio waves.
 
+ at item s
+Step to the next frame.
+
+Pause if the stream is not already paused, step to the next video
+frame, and pause.
+
 @item left/right
 Seek backward/forward 10 seconds.