79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
|
/*-----------------------------------------------------------*/
|
||
|
|
/* Block Sorting, Lossless Data Compression Library. */
|
||
|
|
/* Interface to second stage encoding functions */
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
|
||
|
|
/*--
|
||
|
|
|
||
|
|
This file is a part of bsc and/or libbsc, a program and a library for
|
||
|
|
lossless, block-sorting data compression.
|
||
|
|
|
||
|
|
Copyright (c) 2009-2012 Ilya Grebnov <ilya.grebnov@gmail.com>
|
||
|
|
|
||
|
|
See file AUTHORS for a full list of contributors.
|
||
|
|
|
||
|
|
The bsc and libbsc is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
the Free Software Foundation; either version 3 of the License, or (at your
|
||
|
|
option) any later version.
|
||
|
|
|
||
|
|
The bsc and libbsc is distributed in the hope that it will be useful, but
|
||
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
||
|
|
License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public License
|
||
|
|
along with the bsc and libbsc. If not, see http://www.gnu.org/licenses/.
|
||
|
|
|
||
|
|
Please see the files COPYING and COPYING.LIB for full copyright information.
|
||
|
|
|
||
|
|
See also the bsc and libbsc web site:
|
||
|
|
http://libbsc.com/ for more information.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#ifndef _LIBBSC_CODER_H
|
||
|
|
#define _LIBBSC_CODER_H
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* You should call this function before you call any of the other functions in coder.
|
||
|
|
* @param features - the set of additional features.
|
||
|
|
* @return LIBBSC_NO_ERROR if no error occurred, error code otherwise.
|
||
|
|
*/
|
||
|
|
int bsc_coder_init(int features);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compress a memory block using Quantized Local Frequency Coding.
|
||
|
|
* @param input - the input memory block of n bytes.
|
||
|
|
* @param output - the output memory block of n bytes.
|
||
|
|
* @param n - the length of the input memory block.
|
||
|
|
* @param coder - the entropy coding algorithm.
|
||
|
|
* @param features - the set of additional features.
|
||
|
|
* @return the length of compressed memory block if no error occurred, error code otherwise.
|
||
|
|
*/
|
||
|
|
int bsc_coder_compress(const unsigned char * input, unsigned char * output, int n, int coder, int features);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Decompress a memory block using Quantized Local Frequency Coding.
|
||
|
|
* @param input - the input memory block.
|
||
|
|
* @param output - the output memory block.
|
||
|
|
* @param coder - the entropy coding algorithm.
|
||
|
|
* @param features - the set of additional features.
|
||
|
|
* @return the length of decompressed memory block if no error occurred, error code otherwise.
|
||
|
|
*/
|
||
|
|
int bsc_coder_decompress(const unsigned char * input, unsigned char * output, int coder, int features);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*-----------------------------------------------------------*/
|
||
|
|
/* End coder.h */
|
||
|
|
/*-----------------------------------------------------------*/
|