[FFmpeg-cvslog] Fix rc_max_rate documentation.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Wed Jun  4 20:13:55 2014 +0200| [7738f925a6424d3bb39a92927881e75068bdcfba] | committer: Carl Eugen Hoyos

Fix rc_max_rate documentation.

The mpegvideo decoder sets rc_max_rate since 25b7aa98.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7738f925a6424d3bb39a92927881e75068bdcfba
---

 libavcodec/avcodec.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index d1f67bb..4e02f04 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2290,7 +2290,7 @@ typedef struct AVCodecContext {
     /**
      * maximum bitrate
      * - encoding: Set by user.
-     * - decoding: unused
+     * - decoding: Set by libavcodec.
      */
     int rc_max_rate;