update ops for jpeg_data_t.

include/exijpeg.h

@@ -50,6 +50,13 @@ exijpeg_data_t *exijpeg_data_alloc(void);
 
 void exijpeg_data_free(exijpeg_data_t *);
 
+/* adds a segment to jpeg_data_t */
 int exijpeg_data_add_segment(exijpeg_data_t *, unsigned char *, unsigned long);
 
+/* loads a file to jpeg structure */
+int exijpeg_data_loadfile(exijpeg_data_t *, const char *);
+
+/* release any resources allocated from the system during open file proc */
+int exijpeg_data_release(exijpeg_data_t *);
+
 #endif