From b5a05cc29588f305ec1b1dc6598c8a7938825ea7 Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Tue, 20 Mar 2007 02:12:13 +0000
Subject: [PATCH] fix handling of special case for lowest snroffset.
 regressions are unaffected.

Originally committed as revision 8450 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/ac3.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavcodec/ac3.c b/libavcodec/ac3.c
index a51aca07d5..3749d02f01 100644
--- a/libavcodec/ac3.c
+++ b/libavcodec/ac3.c
@@ -175,6 +175,12 @@ void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end,
 {
     int i, j, k, end1, v, address;
 
+    /* special case, if snroffset is -960, set all bap's to zero */
+    if(snroffset == -960) {
+        memset(bap, 0, 256);
+        return;
+    }
+
     i = start;
     j = masktab[start];
     do {