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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 */
int rgb
1 if file contains RGB image, 0 otherwise
Definition: fits.h:54
int avpriv_fits_header_init(FITSHeader *header, FITSHeaderState state)
Initialize a single header line.
Definition: fits.c:26
double data_max
Definition: fits.h:61
int image_extension
Definition: fits.h:55
FITSHeaderState
Definition: fits.h:29
double bscale
Definition: fits.h:56
Public dictionary API.
FITSHeaderState state
Definition: fits.h:44
uint8_t
int naxis
Definition: fits.h:49
double bzero
Definition: fits.h:57
static struct @281 state
static const uint8_t header[24]
Definition: sdr2.c:67
Structure to store the header keywords in FITS file.
Definition: fits.h:43
Definition: graph2dot.c:48
int data_min_found
Definition: fits.h:58
double data_min
Definition: fits.h:59
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
int bitpix
Definition: fits.h:46
int naxisn[999]
Definition: fits.h:50
unsigned naxis_index
Definition: fits.h:45
int pcount
Definition: fits.h:51
int64_t blank
Definition: fits.h:47
int data_max_found
Definition: fits.h:60
int groups
Definition: fits.h:53
int gcount
Definition: fits.h:52
int blank_found
Definition: fits.h:48