--- a/src/http/v2/ngx_http_v2.h
+++ b/src/http/v2/ngx_http_v2.h
@@ -18,6 +18,7 @@
 
 #define NGX_HTTP_V2_STATE_BUFFER_SIZE    16
 
+#define NGX_HTTP_V2_DEFAULT_FRAME_SIZE   (1 << 14)
 #define NGX_HTTP_V2_MAX_FRAME_SIZE       ((1 << 24) - 1)
 
 #define NGX_HTTP_V2_INT_OCTETS           4
@@ -291,6 +292,9 @@ void ngx_http_v2_close_stream(ngx_http_v
 ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c);
 
 
+ngx_str_t *ngx_http_v2_get_static_name(ngx_uint_t index);
+ngx_str_t *ngx_http_v2_get_static_value(ngx_uint_t index);
+
 ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c,
     ngx_uint_t index, ngx_uint_t name_only);
 ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c,
@@ -357,4 +361,53 @@ size_t ngx_http_v2_huff_encode(u_char *s
 
 #define ngx_http_v2_write_sid  ngx_http_v2_write_uint32
 
+
+#define ngx_http_v2_indexed(i)      (128 + (i))
+#define ngx_http_v2_inc_indexed(i)  (64 + (i))
+
+#define ngx_http_v2_write_name(dst, src, len, tmp)                            \
+    ngx_http_v2_string_encode(dst, src, len, tmp, 1)
+#define ngx_http_v2_write_value(dst, src, len, tmp)                           \
+    ngx_http_v2_string_encode(dst, src, len, tmp, 0)
+
+#define NGX_HTTP_V2_ENCODE_RAW            0
+#define NGX_HTTP_V2_ENCODE_HUFF           0x80
+
+#define NGX_HTTP_V2_AUTHORITY_INDEX       1
+
+#define NGX_HTTP_V2_METHOD_INDEX          2
+#define NGX_HTTP_V2_METHOD_GET_INDEX      2
+#define NGX_HTTP_V2_METHOD_POST_INDEX     3
+
+#define NGX_HTTP_V2_PATH_INDEX            4
+#define NGX_HTTP_V2_PATH_ROOT_INDEX       4
+
+#define NGX_HTTP_V2_SCHEME_HTTP_INDEX     6
+#define NGX_HTTP_V2_SCHEME_HTTPS_INDEX    7
+
+#define NGX_HTTP_V2_STATUS_INDEX          8
+#define NGX_HTTP_V2_STATUS_200_INDEX      8
+#define NGX_HTTP_V2_STATUS_204_INDEX      9
+#define NGX_HTTP_V2_STATUS_206_INDEX      10
+#define NGX_HTTP_V2_STATUS_304_INDEX      11
+#define NGX_HTTP_V2_STATUS_400_INDEX      12
+#define NGX_HTTP_V2_STATUS_404_INDEX      13
+#define NGX_HTTP_V2_STATUS_500_INDEX      14
+
+#define NGX_HTTP_V2_ACCEPT_ENCODING_INDEX 16
+#define NGX_HTTP_V2_ACCEPT_LANGUAGE_INDEX 17
+#define NGX_HTTP_V2_CONTENT_LENGTH_INDEX  28
+#define NGX_HTTP_V2_CONTENT_TYPE_INDEX    31
+#define NGX_HTTP_V2_DATE_INDEX            33
+#define NGX_HTTP_V2_LAST_MODIFIED_INDEX   44
+#define NGX_HTTP_V2_LOCATION_INDEX        46
+#define NGX_HTTP_V2_SERVER_INDEX          54
+#define NGX_HTTP_V2_USER_AGENT_INDEX      58
+#define NGX_HTTP_V2_VARY_INDEX            59
+
+
+u_char *ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len,
+    u_char *tmp, ngx_uint_t lower);
+
+
 #endif /* _NGX_HTTP_V2_H_INCLUDED_ */