From 0a624147c302da7e2a232deea7c38a2bb68b10ff Mon Sep 17 00:00:00 2001
From: Peter Ross <pross@xvid.org>
Date: Mon, 31 May 2010 10:47:36 +0000
Subject: Prevent au_read_packet() looping endlessly when .au file contains
 unsupported codec type.

Originally committed as revision 23392 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/au.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libavformat/au.c')

diff --git a/libavformat/au.c b/libavformat/au.c
index f8f718d4ff..a9c7d03c57 100644
--- a/libavformat/au.c
+++ b/libavformat/au.c
@@ -139,6 +139,11 @@ static int au_read_header(AVFormatContext *s,
 
     codec = ff_codec_get_id(codec_au_tags, id);
 
+    if (!av_get_bits_per_sample(codec)) {
+        av_log_ask_for_sample(s, "could not determine bits per sample\n");
+        return AVERROR_INVALIDDATA;
+    }
+
     if (size >= 24) {
         /* skip unused data */
         url_fseek(pb, size - 24, SEEK_CUR);
-- 
cgit v1.2.3