Re #1072: fixed buffer overflow bugs introduced by r3202.



git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@3250 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjmedia/src/pjmedia-codec/g722.c b/pjmedia/src/pjmedia-codec/g722.c
index 842612c..5b43a61 100644
--- a/pjmedia/src/pjmedia-codec/g722.c
+++ b/pjmedia/src/pjmedia-codec/g722.c
@@ -588,7 +588,7 @@
 	pj_int16_t *p, *end;
 
 	p = (pj_int16_t*)input->buf;
-	end = p + input->size;
+	end = p + input->size/2;
 	while (p < end) {
 	    *p++ >>= g722_data->pcm_shift;
 	}