diff --git a/vp4c.h b/vp4c.h
index 5257813..1d042f5 100644
--- a/vp4c.h
+++ b/vp4c.h
@@ -78,12 +78,17 @@ unsigned char *p4nenc64(      uint64_t       *__restrict in, unsigned n, unsigne
 unsigned char *p4nencx16(     unsigned short *__restrict in, unsigned n, unsigned char *__restrict out);// Direct access 
 unsigned char *p4nencx32(     unsigned       *__restrict in, unsigned n, unsigned char *__restrict out);
 
-unsigned char *p4ndenc128v32( unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start); // SIMD (Vertical bitpacking)
-unsigned char *p4ndenc256v32( unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start); 
-
-unsigned char *p4nd1enc128v32(unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start);
-unsigned char *p4nd1enc256v32(unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start); 
+unsigned char *pn4denc16(     unsigned short *__restrict in, unsigned n, unsigned char *__restrict out, unsigned short start);
+unsigned char *pn4denc32(     unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned       start);
+unsigned char *pn4denc128v32( unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned       start); // SIMD (Vertical bitpacking)
+unsigned char *pn4denc256v32( unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned       start); 
+unsigned char *pn4denc64(     uint64_t       *__restrict in, unsigned n, unsigned char *__restrict out, uint64_t       start);
 
+unsigned char *p4nd1enc16(    unsigned short *__restrict in, unsigned n, unsigned char *__restrict out, unsigned short start);
+unsigned char *p4nd1enc32(    unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned       start);
+unsigned char *p4nd1enc128v32(unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned       start); // SIMD (Vertical bitpacking)
+unsigned char *p4nd1enc256v32(unsigned       *__restrict in, unsigned n, unsigned char *__restrict out, unsigned       start); 
+unsigned char *p4nd1enc64(    uint64_t       *__restrict in, unsigned n, unsigned char *__restrict out, uint64_t       start);
 #ifdef __cplusplus
 }
 #endif