FFmpeg
fits.h
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1 /*
2  * FITS image format common prototypes and structures
3  * Copyright (c) 2017 Paras Chadha
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVCODEC_FITS_H
23 #define AVCODEC_FITS_H
24 
25 #include <inttypes.h>
26 
27 #include "libavutil/dict.h"
28 
29 typedef enum FITSHeaderState {
39 
40 /**
41  * Structure to store the header keywords in FITS file
42  */
43 typedef struct FITSHeader {
45  unsigned naxis_index;
46  int bitpix;
47  int64_t blank;
49  int naxis;
50  int naxisn[999];
51  int pcount;
52  int gcount;
53  int groups;
54  int rgb; /**< 1 if file contains RGB image, 0 otherwise */
56  double bscale;
57  double bzero;
59  double data_min;
61  double data_max;
62 } FITSHeader;
63 
64 
65 /**
66  * Initialize a single header line
67  * @param header pointer to the header
68  * @param state current state of parsing the header
69  * @return 0 if successful otherwise AVERROR_INVALIDDATA
70  */
72 
73 /**
74  * Parse a single header line
75  * @param avcl used in av_log
76  * @param header pointer to the header
77  * @param line one header line
78  * @param metadata used to store metadata while decoding
79  * @return 0 if successful otherwise AVERROR_INVALIDDATA
80  */
81 int avpriv_fits_header_parse_line(void *avcl, FITSHeader *header, const uint8_t line[80], AVDictionary ***metadata);
82 
83 #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
FITSHeader::naxis
int naxis
Definition: fits.h:49
state
static struct @321 state
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:108
STATE_GCOUNT
@ STATE_GCOUNT
Definition: fits.h:36
AVDictionary
Definition: dict.c:30
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:26
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:67
line
Definition: graph2dot.c:48
STATE_BITPIX
@ STATE_BITPIX
Definition: fits.h:32
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