[FFmpeg-cvslog] Fix channel_layout documentation.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Sat May 21 11:08:44 2011 +0200| [f8c49d02b0f17c3011712ec4638ec4c6c76e7831] | committer: Carl Eugen Hoyos

Fix channel_layout documentation.

libavformat/riff.c has been writing channel_layout for as long as
the field exists.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f8c49d02b0f17c3011712ec4638ec4c6c76e7831
---

 libavcodec/avcodec.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index a25612d..fdc86bb 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2611,7 +2611,7 @@ typedef struct AVCodecContext {
     /**
      * Audio channel layout.
      * - encoding: set by user.
-     * - decoding: set by libavcodec.
+     * - decoding: set by user, may be overwritten by libavcodec.
      */
     int64_t channel_layout;