/usr/include/libaec.h is in libaec-dev 0.3.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | /**
* @file libaec.h
*
* @section LICENSE
* Copyright 2012 - 2015
*
* Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
* Deutsches Klimarechenzentrum GmbH
* Bundesstr. 45a
* 20146 Hamburg Germany
*
* Luis Kornblueh
* Max-Planck-Institut fuer Meteorologie
* Bundesstr. 53
* 20146 Hamburg
* Germany
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @section DESCRIPTION
*
* Adaptive Entropy Coding library
*
*/
#ifndef LIBAEC_H
#define LIBAEC_H 1
#include <stddef.h>
#if _WIN32
# ifdef AECDLL_EXPORTS
# define AEC_SCOPE __declspec(dllexport)
# else
# define AEC_SCOPE extern __declspec(dllimport)
# endif
#else
# define AEC_SCOPE extern
#endif
struct internal_state;
struct aec_stream {
const unsigned char *next_in;
/* number of bytes available at next_in */
size_t avail_in;
/* total number of input bytes read so far */
size_t total_in;
unsigned char *next_out;
/* remaining free space at next_out */
size_t avail_out;
/* total number of bytes output so far */
size_t total_out;
/* resolution in bits per sample (n = 1, ..., 32) */
unsigned int bits_per_sample;
/* block size in samples */
unsigned int block_size;
/* Reference sample interval, the number of Coded Data Sets
* between consecutive reference samples (up to 4096). */
unsigned int rsi;
unsigned int flags;
struct internal_state *state;
};
/*********************************/
/* Sample data description flags */
/*********************************/
/* Samples are signed. Telling libaec this results in a slightly
* better compression ratio. Default is unsigned. */
#define AEC_DATA_SIGNED 1
/* 24 bit samples are coded in 3 bytes */
#define AEC_DATA_3BYTE 2
/* Samples are stored with their most significant bit first. This has
* nothing to do with the endianness of the host. Default is LSB. */
#define AEC_DATA_MSB 4
/* Set if preprocessor should be used */
#define AEC_DATA_PREPROCESS 8
/* Use restricted set of code options */
#define AEC_RESTRICTED 16
/* Pad RSI to byte boundary. Only for decoding CCSDS sample data. */
#define AEC_PAD_RSI 32
/* Do not enforce standard regarding legal block sizes. */
#define AEC_NOT_ENFORCE 64
/*************************************/
/* Return codes of library functions */
/*************************************/
#define AEC_OK 0
#define AEC_CONF_ERROR (-1)
#define AEC_STREAM_ERROR (-2)
#define AEC_DATA_ERROR (-3)
#define AEC_MEM_ERROR (-4)
/************************/
/* Options for flushing */
/************************/
/* Do not enforce output flushing. More input may be provided with
* later calls. So far only relevant for encoding. */
#define AEC_NO_FLUSH 0
/* Flush output and end encoding. The last call to aec_encode() must
* set AEC_FLUSH to drain all output.
*
* It is not possible to continue encoding of the same stream after it
* has been flushed because the last byte may be padded with fill
* bits. */
#define AEC_FLUSH 1
/*********************************************/
/* Streaming encoding and decoding functions */
/*********************************************/
AEC_SCOPE int aec_encode_init(struct aec_stream *strm);
AEC_SCOPE int aec_encode(struct aec_stream *strm, int flush);
AEC_SCOPE int aec_encode_end(struct aec_stream *strm);
AEC_SCOPE int aec_decode_init(struct aec_stream *strm);
AEC_SCOPE int aec_decode(struct aec_stream *strm, int flush);
AEC_SCOPE int aec_decode_end(struct aec_stream *strm);
/***************************************************************/
/* Utility functions for encoding or decoding a memory buffer. */
/***************************************************************/
AEC_SCOPE int aec_buffer_encode(struct aec_stream *strm);
AEC_SCOPE int aec_buffer_decode(struct aec_stream *strm);
#endif /* LIBAEC_H */
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