FFmpeg
libavcodec
fits.h
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/*
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* FITS image format common prototypes and structures
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* Copyright (c) 2017 Paras Chadha
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_FITS_H
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#define AVCODEC_FITS_H
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#include <inttypes.h>
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#include "
libavutil/dict.h
"
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typedef
enum
FITSHeaderState
{
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STATE_SIMPLE
,
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STATE_XTENSION
,
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STATE_BITPIX
,
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STATE_NAXIS
,
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STATE_NAXIS_N
,
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STATE_PCOUNT
,
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STATE_GCOUNT
,
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STATE_REST
,
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}
FITSHeaderState
;
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/**
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* Structure to store the header keywords in FITS file
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*/
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typedef
struct
FITSHeader
{
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FITSHeaderState
state
;
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unsigned
naxis_index
;
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int
bitpix
;
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int64_t
blank
;
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int
blank_found
;
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int
naxis
;
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int
naxisn
[999];
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int
pcount
;
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int
gcount
;
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int
groups
;
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int
rgb
;
/**< 1 if file contains RGB image, 0 otherwise */
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int
image_extension
;
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double
bscale
;
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double
bzero
;
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int
data_min_found
;
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double
data_min
;
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int
data_max_found
;
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double
data_max
;
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}
FITSHeader
;
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/**
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* Initialize a single header line
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* @param header pointer to the header
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* @param state current state of parsing the header
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* @return 0 if successful otherwise AVERROR_INVALIDDATA
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*/
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int
avpriv_fits_header_init
(
FITSHeader
*
header
,
FITSHeaderState
state
);
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/**
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* Parse a single header line
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* @param avcl used in av_log
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* @param header pointer to the header
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* @param line one header line
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* @param metadata used to store metadata while decoding
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* @return 0 if successful otherwise AVERROR_INVALIDDATA
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*/
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int
avpriv_fits_header_parse_line
(
void
*avcl,
FITSHeader
*
header
,
const
uint8_t
line
[80],
AVDictionary
***metadata);
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#endif
/* AVCODEC_FITS_H */
FITSHeader::rgb
int rgb
1 if file contains RGB image, 0 otherwise
Definition:
fits.h:54
STATE_PCOUNT
@ STATE_PCOUNT
Definition:
fits.h:35
FITSHeader::bscale
double bscale
Definition:
fits.h:56
FITSHeader::data_max
double data_max
Definition:
fits.h:61
int64_t
long long int64_t
Definition:
coverity.c:34
FITSHeader::naxis
int naxis
Definition:
fits.h:49
FITSHeader::gcount
int gcount
Definition:
fits.h:52
avpriv_fits_header_parse_line
int avpriv_fits_header_parse_line(void *avcl, FITSHeader *header, const uint8_t line[80], AVDictionary ***metadata)
Parse a single header line.
Definition:
fits.c:113
STATE_GCOUNT
@ STATE_GCOUNT
Definition:
fits.h:36
AVDictionary
Definition:
dict.c:34
FITSHeader::image_extension
int image_extension
Definition:
fits.h:55
STATE_XTENSION
@ STATE_XTENSION
Definition:
fits.h:31
FITSHeader::data_min_found
int data_min_found
Definition:
fits.h:58
avpriv_fits_header_init
int avpriv_fits_header_init(FITSHeader *header, FITSHeaderState state)
Initialize a single header line.
Definition:
fits.c:31
STATE_REST
@ STATE_REST
Definition:
fits.h:37
FITSHeader::bzero
double bzero
Definition:
fits.h:57
FITSHeader::state
FITSHeaderState state
Definition:
fits.h:44
FITSHeader::data_min
double data_min
Definition:
fits.h:59
FITSHeader::naxis_index
unsigned naxis_index
Definition:
fits.h:45
FITSHeader::bitpix
int bitpix
Definition:
fits.h:46
FITSHeader::pcount
int pcount
Definition:
fits.h:51
header
static const uint8_t header[24]
Definition:
sdr2.c:68
line
Definition:
graph2dot.c:48
STATE_BITPIX
@ STATE_BITPIX
Definition:
fits.h:32
state
static struct @457 state
STATE_SIMPLE
@ STATE_SIMPLE
Definition:
fits.h:30
dict.h
FITSHeaderState
FITSHeaderState
Definition:
fits.h:29
FITSHeader::data_max_found
int data_max_found
Definition:
fits.h:60
FITSHeader::naxisn
int naxisn[999]
Definition:
fits.h:50
FITSHeader
Structure to store the header keywords in FITS file.
Definition:
fits.h:43
FITSHeader::blank
int64_t blank
Definition:
fits.h:47
FITSHeader::groups
int groups
Definition:
fits.h:53
FITSHeader::blank_found
int blank_found
Definition:
fits.h:48
STATE_NAXIS_N
@ STATE_NAXIS_N
Definition:
fits.h:34
STATE_NAXIS
@ STATE_NAXIS
Definition:
fits.h:33
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