From: Martin Storsjö <martin@martin.st>
Date: Tue, 5 Oct 2010 21:36:30 +0000 (+0000)
Subject: movdec: Free the previous extradata
X-Git-Tag: v0.7b2~2291
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=2f412421e8bb1927fcd866777dfedf223c9dfdfb;p=coroid%2Flibav_saccubus.git

movdec: Free the previous extradata

If multiple stsd atoms are parsed for the same stream, the old
extradata would be leaked.

Originally committed as revision 25360 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 8c65f4bf7..4eea79563 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -528,6 +528,7 @@ int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom)
             dprintf(fc, "Specific MPEG4 header len=%d\n", len);
             if((uint64_t)len > (1<<30))
                 return -1;
+            av_free(st->codec->extradata);
             st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
             if (!st->codec->extradata)
                 return AVERROR(ENOMEM);