mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 18:02:11 +00:00
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
|
|
* FITS image format common prototypes and structures
|
|
* Copyright (c) 2017 Paras Chadha
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_FITS_H
|
|
#define AVCODEC_FITS_H
|
|
|
|
#include <inttypes.h>
|
|
|
|
#include "libavutil/dict.h"
|
|
|
|
typedef enum FITSHeaderState {
|
|
STATE_SIMPLE,
|
|
STATE_XTENSION,
|
|
STATE_BITPIX,
|
|
STATE_NAXIS,
|
|
STATE_NAXIS_N,
|
|
STATE_PCOUNT,
|
|
STATE_GCOUNT,
|
|
STATE_REST,
|
|
} FITSHeaderState;
|
|
|
|
/**
|
|
* Structure to store the header keywords in FITS file
|
|
*/
|
|
typedef struct FITSHeader {
|
|
FITSHeaderState state;
|
|
unsigned naxis_index;
|
|
int bitpix;
|
|
int64_t blank;
|
|
int blank_found;
|
|
int naxis;
|
|
int naxisn[999];
|
|
int pcount;
|
|
int gcount;
|
|
int groups;
|
|
int rgb; /**< 1 if file contains RGB image, 0 otherwise */
|
|
int image_extension;
|
|
double bscale;
|
|
double bzero;
|
|
int data_min_found;
|
|
double data_min;
|
|
int data_max_found;
|
|
double data_max;
|
|
} FITSHeader;
|
|
|
|
|
|
/**
|
|
* Initialize a single header line
|
|
* @param header pointer to the header
|
|
* @param state current state of parsing the header
|
|
* @return 0 if successful otherwise AVERROR_INVALIDDATA
|
|
*/
|
|
int avpriv_fits_header_init(FITSHeader *header, FITSHeaderState state);
|
|
|
|
/**
|
|
* Parse a single header line
|
|
* @param avcl used in av_log
|
|
* @param header pointer to the header
|
|
* @param line one header line
|
|
* @param metadata used to store metadata while decoding
|
|
* @return 0 if successful otherwise AVERROR_INVALIDDATA
|
|
*/
|
|
int avpriv_fits_header_parse_line(void *avcl, FITSHeader *header, const uint8_t line[80], AVDictionary ***metadata);
|
|
|
|
#endif /* AVCODEC_FITS_H */
|