From 0d3a51e5d279dd2a56c81ba7a81a70128c5a7545 Mon Sep 17 00:00:00 2001
From: Oana Stratulat <oanaandreeastratulat@gmail.com>
Date: Wed, 4 Jan 2012 03:13:27 +0200
Subject: [PATCH] electronicarts: Fix division by zero. Fixes Ticket #793

Signed-off-by: Oana Stratulat <oanaandreeastratulat@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavformat/electronicarts.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c
index 75f92afc0f..41ed0891b9 100644
--- a/libavformat/electronicarts.c
+++ b/libavformat/electronicarts.c
@@ -221,6 +221,10 @@ static int process_audio_header_eacs(AVFormatContext *s)
 
     ea->sample_rate  = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
     ea->bytes        = avio_r8(pb);   /* 1=8-bit, 2=16-bit */
+    if(ea->bytes == 0){
+        av_log(s,AV_LOG_ERROR,"the file is corrupted, ea->bytes = 0\n");
+        return AVERROR_INVALIDDATA;
+    }
     ea->num_channels = avio_r8(pb);
     compression_type = avio_r8(pb);
     avio_skip(pb, 13);