From e1f4dd6d41f2ef8cd6db444a3b70946d7a1e29a9 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date: Wed, 11 Aug 2010 14:49:41 +0000
Subject: [PATCH] Extend and clarify documentation for -ac ffmpeg option.
Fix roundup issue #2061.
Originally committed as revision 24772 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
doc/ffmpeg-doc.texi | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index ccf06b52de1..71bed9b711f 100644
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -510,7 +510,10 @@ Set the audio bitrate in bit/s (default = 64k).
@item -aq @var{q}
Set the audio quality (codec-specific, VBR).
@item -ac @var{channels}
-Set the number of audio channels (default = 1).
+Set the number of audio channels. For input streams it is set by
+default to 1, for output streams it is set by default to the same
+number of audio channels in input. If the input file has audio streams
+with different channel count, the behaviour is undefined.
@item -an
Disable audio recording.
@item -acodec @var{codec}
--
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