initial import

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diff --git a/libs/util/include/Codec.h b/libs/util/include/Codec.h
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+/**
+ * ======================== legal notice ======================
+ * 
+ * File:      Codec.h
+ * Created:   21. Mai 2012, 14:00
+ * Author:    <a href="mailto:geronimo013@gmx.de">Geronimo</a>
+ * Project:   libutil - base classes used by other libraries
+ * 
+ * CMP - compound media player
+ * 
+ * is a client/server mediaplayer intended to play any media from any workstation
+ * without the need to export or mount shares. cmps is an easy to use backend
+ * with a (ready to use) HTML-interface. Additionally the backend supports
+ * authentication via HTTP-digest authorization.
+ * cmpc is a client with vdr-like osd-menues.
+ * 
+ * Copyright (c) 2012 Reinhard Mantey, some rights reserved!
+ * published under Creative Commons by-sa
+ * For details see http://creativecommons.org/licenses/by-sa/3.0/
+ * 
+ * The cmp project's homepage is at http://projects.vdr-developer.org/projects/cmp
+ * 
+ * --------------------------------------------------------------
+ */
+#ifndef CODEC_H
+#define	CODEC_H
+
+#include <stddef.h>
+
+class cCodec {
+///< base class for simple (character based) encoding/decoding
+public:
+  cCodec(const char *Table, char KeyChar = '#');
+  virtual ~cCodec();
+  char KeyChar() const { return keyChar; }
+  const char *TranslateTable() const { return translateTable; }
+  virtual size_t DecodeSequence(unsigned char *d, unsigned char *s);
+
+protected:
+  char *translateTable;
+  char keyChar;
+  };
+
+class cEncoder : public cCodec {
+public:
+  cEncoder(char SpecialChar = '#', const char *TrTable = "0123456789ABCDEF");
+  virtual ~cEncoder();
+  char *Encode(const char *Source, size_t SourceLength = 0); ///< encode Source,
+  ///< optionally limited by SourceLength (default is to encode a 0-terminated cstring)
+  };
+
+class cURLEncoder : public cEncoder {
+public:
+  cURLEncoder();
+  virtual ~cURLEncoder();
+  };
+
+class cDecoder : public cCodec {
+public:
+  cDecoder(char KeyChar = '#', const char *TrTable = "0123456789ABCDEF");
+  virtual ~cDecoder();
+  char *Decode(const char *Source, size_t SourceLength = 0); ///< decode Source,
+  ///< optionally limited by SourceLength (default is to decode a 0-terminated cstring)
+  virtual size_t DecodeSequence(unsigned char *d, unsigned char *s);
+  };
+
+class cURLDecoder : public cDecoder {
+public:
+  cURLDecoder();
+  virtual ~cURLDecoder();
+  };
+
+class cHexEncoder : public cEncoder {
+public:
+  cHexEncoder();
+  virtual ~cHexEncoder();
+  char *Encode(const unsigned char* Source, size_t SourceLength = 0);
+  };
+
+class cHexDecoder : public cDecoder {
+public:
+  cHexDecoder();
+  virtual ~cHexDecoder();
+  char *Decode(const char *Source, size_t SourceLength = 0);
+  };
+
+extern cHexEncoder * getHexEncoder(void);
+extern cHexDecoder * getHexDecoder(void);
+extern void codecCleanUp(void);
+
+#endif	/* CODEC_H */
+