From f6d32199ffa340dbbc4f5cdb2869ea3f30fd2529 Mon Sep 17 00:00:00 2001
From: Nanang Izzuddin <nanang@teluu.com>
Date: Wed, 28 May 2008 19:15:31 +0000
Subject: More ticket #536: fixed bug in SrcUD (missed fix, previously r1968
 only fixed SrcUp)

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@1969 74dad513-b988-da41-8d7b-12977e46ad98
---
 third_party/resample/src/resamplesubs.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'third_party')

diff --git a/third_party/resample/src/resamplesubs.c b/third_party/resample/src/resamplesubs.c
index 51648aea..242844d5 100644
--- a/third_party/resample/src/resamplesubs.c
+++ b/third_party/resample/src/resamplesubs.c
@@ -307,7 +307,11 @@ static int SrcUD(const RES_HWORD X[], RES_HWORD Y[], double pFactor,
     Ystart = Y;
     Yend = Ystart + (unsigned)(nx * pFactor);
     endTime = time + (1<<Np)*(RES_WORD)nx;
-    while (time < endTime)
+
+    // Integer round down in dtb calculation may cause (endTime % dtb > 0), 
+    // so it may cause resample write pass the output buffer (Y >= Yend).
+    // while (time < endTime)
+    while (Y < Yend)
     {
 	xp = &X[time>>Np];	/* Ptr to current input sample */
 	v = FilterUD(pImp, pImpD, pNwing, Interp, xp, (RES_HWORD)(time&Pmask),
-- 
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