+typedef enum __eStreamType {
+ eBase64Encode,
+ eBase64Decode,
+ eZLibEncode,
+ eZLibDecode,
+ eEmtyCodec
+} eStreamType;
+
+typedef struct vStreamT vStreamT;
+vStreamT *StrBufNewStreamContext(eStreamType type, const char **Err);
+int StrBufDestroyStreamContext(eStreamType type, vStreamT **Stream, const char **Err);
+int StrBufStreamTranscode(eStreamType type, IOBuffer *Target, IOBuffer *In, const char* pIn, long pInLen, vStreamT *Stream, int LastChunk, const char **Err);
+