[FFmpeg-cvslog] bitmap header lookup: add code comment

[rogerdpack]

ffmpeg | branch: master | rogerdpack <rogerpack2005 at gmail.com> | Fri Sep 21 13:26:02 2012 -0600| [641c0eea0b8deef08907e4dddeb8416f741edad6] | committer: Michael Niedermayer

bitmap header lookup: add code comment

Signed-off-by: rogerdpack <rogerpack2005 at gmail.com>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=641c0eea0b8deef08907e4dddeb8416f741edad6
---

 libavformat/riff.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavformat/riff.c b/libavformat/riff.c
index f69e536..1c34112 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -28,7 +28,10 @@
 #include "libavutil/avassert.h"
 
 /* Note: when encoding, the first matching tag is used, so order is
-   important if multiple tags possible for a given codec. */
+   important if multiple tags possible for a given codec.
+   Note also that this list is used for more than just riff, other
+   files use it as well.
+*/
 const AVCodecTag ff_codec_bmp_tags[] = {
     { AV_CODEC_ID_H264,         MKTAG('H', '2', '6', '4') },
     { AV_CODEC_ID_H264,         MKTAG('h', '2', '6', '4') },