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/*! @file gpr_exif_info.h
*
* @brief Declaration of gpr_exif_info object and associated functions
*
* GPR API can be invoked by simply including this header file.
* This file includes all other header files that are needed.
*
* (C) Copyright 2018 GoPro Inc (http://gopro.com/).
*
* Licensed under either:
* - Apache License, Version 2.0, http://www.apache.org/licenses/LICENSE-2.0
* - MIT license, http://opensource.org/licenses/MIT
* at your option.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef GPR_EXIF_INFO
#define GPR_EXIF_INFO
#define CAMERA_MAKE_SIZE 32
#define CAMERA_MODEL_SIZE 32
#define CAMERA_SERIAL_SIZE 32
#define SOFTWARE_VERSION_SIZE 32
#define USER_COMMENT_SIZE 64
#define SATELLITES_USED_SIZE 32
#define SURVEY_DATA_SIZE 32
#define PROCESSING_METHOD_SIZE 32
#define AREA_INFORMATION_SIZE 32
#define IMAGE_DESCRIPTION_SIZE 32
#include "gpr_platform.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum
{
gpr_sensing_method_chip_color_area = 2,
} gpr_sensing_method;
typedef enum
{
gpr_file_source_digital_still = 3,
} gpr_file_source;
typedef enum
{
gpr_scene_type_directly_photographed = 1,
} gpr_scene_type;
typedef enum
{
gpr_white_balance_auto = 0,
gpr_white_balance_manual = 1,
} gpr_white_balance;
typedef enum
{
gpr_exposure_mode_auto = 0,
gpr_exposure_mode_manual = 1,
gpr_exposure_mode_auto_bracket = 2,
} gpr_exposure_mode;
typedef enum
{
gpr_scene_capture_type_standard = 0,
gpr_scene_capture_type_landscape = 1,
gpr_scene_capture_type_portrait = 2,
gpr_scene_capture_type_night = 3,
} gpr_scene_capture_type;
typedef enum
{
gpr_contrast_normal = 0,
} gpr_contrast;
typedef enum
{
gpr_gain_control_normal = 0,
} gpr_gain_control;
typedef enum
{
gpr_saturation_normal = 0,
} gpr_saturation;
typedef enum
{
gpr_sharpness_normal = 0,
gpr_sharpness_soft = 1,
gpr_sharpness_hard = 2,
} gpr_sharpness;
typedef enum
{
gpr_flash_not_used = 0,
gpr_flash_used = 1,
gpr_flash_not_supported = 32,
} gpr_flash;
typedef enum
{
gpr_exposure_program_manual_control = 1,
gpr_exposure_program_normal = 2,
gpr_exposure_program_aperture_priority = 3,
gpr_exposure_program_shutter_priority = 4,
gpr_exposure_program_creative = 5,
gpr_exposure_program_action = 6,
gpr_exposure_program_portrait_mode = 7,
gpr_exposure_program_landscape_mode = 8,
} gpr_exposure_program;
typedef enum
{
gpr_metering_mode_average = 1,
gpr_metering_mode_center_weighted_average = 2,
gpr_metering_mode_spot = 3,
gpr_metering_mode_multi_spot = 4,
gpr_metering_mode_multi_segment = 5,
} gpr_metering_mode;
typedef enum
{
gpr_light_source_auto = 0,
gpr_light_source_daylight = 1,
gpr_light_source_fuorescent = 2,
gpr_light_source_tungsten = 3,
} gpr_light_source; // See this link for more info: http://www.awaresystems.be/imaging/tiff/tifftags/privateifd/exif/lightsource.html
/*****************************************************************************/
typedef struct
{
int32_t numerator; // Numerator
int32_t denominator; // Denominator
} gpr_signed_rational;
typedef struct
{
uint32_t numerator; // Numerator
uint32_t denominator; // Denominator
} gpr_unsigned_rational;
typedef struct
{
uint32_t year;
uint32_t month;
uint32_t day;
uint32_t hour;
uint32_t minute;
uint32_t second;
} gpr_date_and_time;
typedef struct
{
bool gps_info_valid;
uint32_t version_id;
char latitude_ref[2];
gpr_unsigned_rational latitude[3];
char longitude_ref[2];
gpr_unsigned_rational longitude[3];
uint8_t altitude_ref;
gpr_unsigned_rational altitude;
gpr_unsigned_rational time_stamp[3];
char satellites[SATELLITES_USED_SIZE];
char status[2];
char measure_mode[2];
gpr_unsigned_rational dop;
char speed_ref[2];
gpr_unsigned_rational speed;
char track_ref[2];
gpr_unsigned_rational track;
char img_direction_ref[2];
gpr_unsigned_rational img_direction;
char map_datum[SURVEY_DATA_SIZE];
char dest_latitude_ref[2];
gpr_unsigned_rational dest_latitude[3];
char dest_longitude_ref[2];
gpr_unsigned_rational dest_longitude[3];
char dest_bearing_ref[2];
gpr_unsigned_rational dest_bearing;
char dest_distance_ref[2];
gpr_unsigned_rational dest_distance;
char processing_method[PROCESSING_METHOD_SIZE];
char area_information[AREA_INFORMATION_SIZE];
char date_stamp[11];
unsigned short differential;
} gpr_gps_info;
typedef struct
{
char camera_make[CAMERA_MAKE_SIZE];
char camera_model[CAMERA_MODEL_SIZE];
char camera_serial[CAMERA_SERIAL_SIZE];
char software_version[SOFTWARE_VERSION_SIZE];
char user_comment[USER_COMMENT_SIZE];
char image_description[IMAGE_DESCRIPTION_SIZE];
gpr_unsigned_rational exposure_time; /* exposure time (as fraction) */
gpr_unsigned_rational f_stop_number; /* f-stop number (as fraction) */
gpr_unsigned_rational aperture; /* aperture */
gpr_exposure_program exposure_program;
uint16_t iso_speed_rating;
gpr_date_and_time date_time_original;
gpr_date_and_time date_time_digitized;
gpr_signed_rational exposure_bias;
gpr_metering_mode metering_mode;
gpr_light_source light_source;
gpr_flash flash;
gpr_unsigned_rational focal_length;
gpr_sharpness sharpness;
uint16_t saturation;
gpr_gain_control gain_control;
gpr_contrast contrast;
gpr_scene_capture_type scene_capture_type;
gpr_exposure_mode exposure_mode;
uint16_t focal_length_in_35mm_film;
gpr_unsigned_rational digital_zoom;
gpr_white_balance white_balance;
gpr_scene_type scene_type;
gpr_file_source file_source;
gpr_sensing_method sensing_method;
gpr_gps_info gps_info;
} gpr_exif_info;
void gpr_exif_info_set_defaults( gpr_exif_info* x );
void gpr_exif_info_get_camera_make_and_model( const gpr_exif_info* x, char camera_make_and_model[256] );
gpr_date_and_time construct_gpr_date_and_time (uint32_t year, uint32_t month, uint32_t day, uint32_t hour, uint32_t minute, uint32_t second);
#ifdef __cplusplus
}
#endif
#endif // GPR_EXIF_INFO
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