diff -rupN openjpeg-master/src/lib/openjp2/cio.c openjpeg-master-new/src/lib/openjp2/cio.c
--- openjpeg-master/src/lib/openjp2/cio.c	2015-06-24 17:11:09.000000000 +0200
+++ openjpeg-master-new/src/lib/openjp2/cio.c	2015-06-25 22:28:19.840764480 +0200
@@ -46,11 +46,11 @@
 
 void opj_write_bytes_BE (OPJ_BYTE * p_buffer, OPJ_UINT32 p_value, OPJ_UINT32 p_nb_bytes)
 {
-	const OPJ_BYTE * l_data_ptr = ((const OPJ_BYTE *) &p_value) + p_nb_bytes;
+	const OPJ_BYTE * l_data_ptr = ((const OPJ_BYTE *) &p_value);
 
 	assert(p_nb_bytes > 0 && p_nb_bytes <=  sizeof(OPJ_UINT32));
 
-	memcpy(p_buffer,l_data_ptr,p_nb_bytes);
+	memcpy(p_buffer,l_data_ptr+sizeof(OPJ_UINT32)-p_nb_bytes,p_nb_bytes);
 }
 
 void opj_write_bytes_LE (OPJ_BYTE * p_buffer, OPJ_UINT32 p_value, OPJ_UINT32 p_nb_bytes)
@@ -72,7 +72,7 @@ void opj_read_bytes_BE(const OPJ_BYTE *
 	assert(p_nb_bytes > 0 && p_nb_bytes <= sizeof(OPJ_UINT32));
 
 	*p_value = 0;
-	memcpy(l_data_ptr+4-p_nb_bytes,p_buffer,p_nb_bytes);
+	memcpy(l_data_ptr+sizeof(OPJ_UINT32)-p_nb_bytes,p_buffer,p_nb_bytes);
 }
 
 void opj_read_bytes_LE(const OPJ_BYTE * p_buffer, OPJ_UINT32 * p_value, OPJ_UINT32 p_nb_bytes)