[SCM] libav/experimental: ffmpeg.c manual: clarify map_meta_data usage.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit b11b72a65f213055e6340d00aaed62a8a8821206
Author: Anton Khirnov <wyskas at gmail.com>
Date:   Wed Oct 27 10:24:14 2010 +0000

    ffmpeg.c manual: clarify map_meta_data usage.
    
    Originally committed as revision 25590 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index 21a9a66..bf5bdf4 100644
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -587,7 +587,8 @@ Just enumerate the input streams in the order you want them in the output.
 @var{sync_stream_id} if specified sets the input stream to sync
 against.
 @item -map_meta_data @var{outfile}:@var{infile}
-Set meta data information of @var{outfile} from @var{infile}.
+Set meta data information of @var{outfile} from @var{infile}. Note that those
+are file indices (zero-based), not filenames.
 @item -debug
 Print specific debug info.
 @item -benchmark

-- 
Libav/FFmpeg packaging