From 4ff5e6563e5d4969bb1882a010b3ed67ebff314d Mon Sep 17 00:00:00 2001
From: Ian Braithwaite <ian@braithwaite.dk>
Date: Thu, 8 Mar 2007 19:47:03 +0000
Subject: [PATCH] Don't output the first two frames, since they don't contain
 valid audio. This also eases comparison of decoded output with Real's binary
 decoder.

Patch by Ian Braithwaite <ian at braithwaite dot dk>

Originally committed as revision 8297 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/cook.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/cook.c b/libavcodec/cook.c
index 9a3221414a..07655b01ce 100644
--- a/libavcodec/cook.c
+++ b/libavcodec/cook.c
@@ -1068,6 +1068,9 @@ static int cook_decode_frame(AVCodecContext *avctx,
 
     *data_size = decode_subpacket(q, buf, avctx->block_align, data);
 
+    /* Discard the first two frames: no valid audio. */
+    if (avctx->frame_number < 2) *data_size = 0;
+
     return avctx->block_align;
 }