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/**
* ======================== legal notice ======================
*
* File: Codec.h
* Created: 21. Mai 2012, 14
* 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 */
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