From 28eb5773903a84c991d7f58756fdeaddaf58e46a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Sun, 14 Mar 2010 13:38:00 +0000
Subject: [PATCH] Avoid creating tiny (possibly only 64 bytes large) audio
 packets resulting in huge processing and memory usage overhead for avi files
 with raw PCM audio.

Originally committed as revision 22521 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/avidec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index d56dcd2154..cba34f8d3d 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -749,7 +749,8 @@ resync:
         if(ast->sample_size <= 1) // minorityreport.AVI block_align=1024 sample_size=1 IMA-ADPCM
             size= INT_MAX;
         else if(ast->sample_size < 32)
-            size= 64*ast->sample_size;
+            // arbitrary multiplier to avoid tiny packets for raw PCM data
+            size= 1024*ast->sample_size;
         else
             size= ast->sample_size;