[FFmpeg-cvslog] Make packed B-frame warning message more useful.

[Reimar Döffinger]

ffmpeg | branch: master | Reimar Döffinger <Reimar.Doeffinger at gmx.de> | Sun Sep  8 19:34:20 2013 +0200| [4ebf09c3461c5a42c3a14f79b1a8a59069a69d7f] | committer: Reimar Döffinger

Make packed B-frame warning message more useful.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger at gmx.de>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4ebf09c3461c5a42c3a14f79b1a8a59069a69d7f
---

 libavcodec/mpeg4videodec.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 9ff7574..c81a917 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -1912,7 +1912,9 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
         s->divx_build= build;
         s->divx_packed= e==3 && last=='p';
         if(s->divx_packed && !s->showed_packed_warning) {
-            av_log(s->avctx, AV_LOG_WARNING, "Invalid and inefficient vfw-avi packed B frames detected\n");
+            av_log(s->avctx, AV_LOG_WARNING, "Video uses a non-standard and "
+                   "wasteful way to store B-frames ('packed B-frames'). "
+                   "Consider using a tool like VirtualDub or avidemux to fix it.\n");
             s->showed_packed_warning=1;
         }
     }