From 73b16198b6cab1cdafa46143aae7a69e10e130fd Mon Sep 17 00:00:00 2001
From: Janne Grunau <janne-libav@jannau.net>
Date: Thu, 5 Jan 2012 22:12:35 +0100
Subject: [PATCH] electronicarts: check bytes per sample for validity

Prevents division by zero.
---
 libavformat/electronicarts.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c
index 0facc8afba..01ba479fac 100644
--- a/libavformat/electronicarts.c
+++ b/libavformat/electronicarts.c
@@ -434,6 +434,11 @@ static int ea_read_header(AVFormatContext *s,
             ea->audio_codec = 0;
             return 1;
         }
+        if (ea->bytes <= 0) {
+            av_log(s, AV_LOG_ERROR, "Invalid number of bytes per sample: %d\n", ea->bytes);
+            ea->audio_codec = CODEC_ID_NONE;
+            return 1;
+        }
 
         /* initialize the audio decoder stream */
         st = avformat_new_stream(s, NULL);