[FFmpeg-cvslog] doc/ffmpeg: Clarify that the sdp_file option requires an rtp output.

[Simon Thelen]

ffmpeg | branch: release/2.7 | Simon Thelen <ffmpeg-dev at c-14.de> | Mon Nov  2 15:57:50 2015 +0100| [ae270314c7f4e9fabc9166bb5f5dfcba03304703] | committer: Michael Niedermayer

doc/ffmpeg: Clarify that the sdp_file option requires an rtp output.

Signed-off-by: Simon Thelen <ffmpeg-dev at c-14.de>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit b02201efb531348406e48f9252bd39a6acebd2b7)

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ae270314c7f4e9fabc9166bb5f5dfcba03304703
---

 doc/ffmpeg.texi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 1078ea1..5ff8798 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -1193,9 +1193,9 @@ The option is intended for cases where features are needed that cannot be
 specified to @command{ffserver} but can be to @command{ffmpeg}.
 
 @item -sdp_file @var{file} (@emph{global})
-Print sdp information to @var{file}.
+Print sdp information for an output stream to @var{file}.
 This allows dumping sdp information when at least one output isn't an
-rtp stream.
+rtp stream. (Requires at least one of the output formats to be rtp).
 
 @item -discard (@emph{input})
 Allows discarding specific streams or frames of streams at the demuxer.