From f23938f5b799e8859693aec1ce55ef04490c6aab Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 29 Oct 2008 00:16:50 +0000
Subject: [PATCH] Check sub_packet_size against 0 to avoid div by zero later.
Fixes issue473
Originally committed as revision 15739 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/rmdec.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index 8442957400b..9db09e1ed97 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -138,6 +138,11 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVStream *st,
return -1;
}
+ if(sub_packet_size <= 0){
+ av_log(s, AV_LOG_ERROR, "sub_packet_size is invalid\n");
+ return -1;
+ }
+
if (!strcmp(buf, "cook")) st->codec->codec_id = CODEC_ID_COOK;
else if (!strcmp(buf, "sipr")) st->codec->codec_id = CODEC_ID_SIPR;
else st->codec->codec_id = CODEC_ID_ATRAC3;
--
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