From ed8a50068caacf722b6c7a81f77abcadc134e544 Mon Sep 17 00:00:00 2001
From: Alex Converse <alex.converse@gmail.com>
Date: Thu, 9 Jun 2011 09:50:38 -0700
Subject: riff: Fix potential memleak.

Make ff_get_wav_header() free existing extradata before allocing a new
buffer.
---
 libavformat/riff.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'libavformat/riff.c')

diff --git a/libavformat/riff.c b/libavformat/riff.c
index e17980a00a..fe6cc55055 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -509,6 +509,7 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
         }
         codec->extradata_size = cbSize;
         if (cbSize > 0) {
+            av_free(codec->extradata);
             codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
             if (!codec->extradata)
                 return AVERROR(ENOMEM);
-- 
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