diff --git a/src/lib/openjp2/openjpeg.h b/src/lib/openjp2/openjpeg.h
index 1fcc0fa5..6d25abe3 100644
--- a/src/lib/openjp2/openjpeg.h
+++ b/src/lib/openjp2/openjpeg.h
@@ -384,8 +384,16 @@ typedef struct opj_cparameters {
 	OPJ_BOOL jpip_on;
 	/** Naive implementation of MCT restricted to a single reversible array based encoding without offset concerning all the components. */
 	void * mct_data;
+    /* extended capacity (not used now, reserved for future development) */
+    opj_extended_cparameters_t extended_parameters;
 } opj_cparameters_t;
 
+/**
+ * Extended cparameters (not used now, reserved for future development)
+ * */
+typedef void* opj_extended_cparameters_t;
+     
+
 #define OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG	0x0001
 
 /**
@@ -449,11 +457,17 @@ typedef struct opj_dparameters {
 	/*@}*/
 /* <<UniPG */
 
-
 	unsigned int flags;
+
+    /* extended capacity (not used now, reserved for future development)*/
+    opj_extended_dparameters_t extended_parameters;
 } opj_dparameters_t;
 
 
+/**
+ * Extended dparameters (not used now, reserved for future development)
+ * */
+typedef void* opj_extended_dparameters_t;
 
 
 /**
@@ -586,6 +600,14 @@ typedef struct opj_image_comptparm {
 } opj_image_cmptparm_t;
 
 
+
+/**
+ * Extended image capabilities (not used now, reserved for the future and development)
+ * */
+typedef void* opj_input_image_t;
+typedef void* opj_output_image_t;
+
+
 /* 
 ==========================================================
    Information on the JPEG 2000 codestream