From f4a4be3f4e9b5f69fc9063c2030e255e754b4a24 Mon Sep 17 00:00:00 2001
From: Wallak <wallak@free.fr>
Date: Sat, 3 Oct 2009 19:30:09 +0000
Subject: [PATCH] H264 allows B frames without requiring a >=1 sized buffer.

Patch by wallak, wallak free fr

Originally committed as revision 20160 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 1e8a2f4280..f46be17860 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -770,7 +770,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
     int num, den, presentation_delayed, delay, i;
     int64_t offset;
 
-    if (pc && pc->pict_type == FF_B_TYPE)
+    if (st->codec->codec_id != CODEC_ID_H264 && pc && pc->pict_type == FF_B_TYPE)
         st->codec->has_b_frames = 1;
 
     /* do we have a video B-frame ? */