exif_module.c File Reference

#include "exif_module.h"
#include "state.h"
#include "subsystems/gps.h"
#include <libexif/exif-data.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

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Macros
#define	image_data_len   (image_jpg_len - image_data_offset)
#define	FILE_BYTE_ORDER   EXIF_BYTE_ORDER_INTEL
#define	FILE_COMMENT   "Paparazzi autopilot"
#define	ASCII_COMMENT   "ASCII\0\0\0"

Functions
void	push_gps_to_vision (void)
static ExifEntry *	init_tag (ExifData *exif, ExifIfd ifd, ExifTag tag)
static ExifEntry *	create_tag (ExifData *exif, ExifIfd ifd, ExifTag tag, size_t len)
int	write_exif_jpeg (char *filename, const unsigned char *image_jpg, const unsigned int image_jpg_len, const unsigned int image_jpg_x, const unsigned int image_jpg_y)

Variables
volatile int32_t	lat_em7deg = 0
volatile int32_t	lon_em7deg = 0
volatile int32_t	alt_mm = 0
static const unsigned int	image_data_offset = 2
static const unsigned char	exif_header []
static const unsigned int	exif_header_len = sizeof(exif_header)

Macro Definition Documentation

ASCII_COMMENT

#define ASCII_COMMENT   "ASCII\0\0\0"

Definition at line 141 of file exif_module.c.

FILE_BYTE_ORDER

#define FILE_BYTE_ORDER   EXIF_BYTE_ORDER_INTEL

Definition at line 135 of file exif_module.c.

FILE_COMMENT

#define FILE_COMMENT   "Paparazzi autopilot"

Definition at line 138 of file exif_module.c.

image_data_len

#define image_data_len   (image_jpg_len - image_data_offset)

Definition at line 125 of file exif_module.c.

Function Documentation

create_tag()

static ExifEntry* create_tag ( ExifData *  exif, ExifIfd  ifd, ExifTag  tag, size_t  len  )

static

Definition at line 89 of file exif_module.c.

Referenced by write_exif_jpeg().

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init_tag()

static ExifEntry* init_tag ( ExifData *  exif, ExifIfd  ifd, ExifTag  tag  )

static

Definition at line 56 of file exif_module.c.

Referenced by write_exif_jpeg().

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push_gps_to_vision()

void push_gps_to_vision

(

void

)

Definition at line 38 of file exif_module.c.

References alt_mm, c(), gps, GpsState::hmsl, lat_em7deg, lon_em7deg, and stateGetPositionLla_i().

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write_exif_jpeg()

int write_exif_jpeg	(	char *	filename,
		const unsigned char *	image_jpg,
		const unsigned int	image_jpg_len,
		const unsigned int	image_jpg_x,
		const unsigned int	image_jpg_y
	)

Definition at line 146 of file exif_module.c.

References LlaCoor_i::alt, alt_mm, ASCII_COMMENT, create_tag(), exif_header, exif_header_len, f, FILE_BYTE_ORDER, FILE_COMMENT, image_data_len, image_data_offset, init_tag(), LlaCoor_i::lat, lat_em7deg, LlaCoor_i::lon, and lon_em7deg.

Referenced by save_shot_on_disk(), and video_capture_save().

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Variable Documentation

alt_mm

volatile int32_t alt_mm = 0

Definition at line 33 of file exif_module.c.

Referenced by jevois_send_state(), push_gps_to_vision(), and write_exif_jpeg().

exif_header

const unsigned char exif_header[]

static

Initial value:

= {
  0xff, 0xd8, 0xff, 0xe1
}

Definition at line 128 of file exif_module.c.

Referenced by write_exif_jpeg().

exif_header_len

const unsigned int exif_header_len = sizeof(exif_header)

static

Definition at line 132 of file exif_module.c.

Referenced by write_exif_jpeg().

image_data_offset

const unsigned int image_data_offset = 2

static

Definition at line 124 of file exif_module.c.

Referenced by write_exif_jpeg().

lat_em7deg

volatile int32_t lat_em7deg = 0

Definition at line 31 of file exif_module.c.

Referenced by push_gps_to_vision(), and write_exif_jpeg().

lon_em7deg

volatile int32_t lon_em7deg = 0

Definition at line 32 of file exif_module.c.

Referenced by push_gps_to_vision(), and write_exif_jpeg().