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Diffstat (limited to 'libs3cjpeg/Exif.h')
| -rw-r--r-- | libs3cjpeg/Exif.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/libs3cjpeg/Exif.h b/libs3cjpeg/Exif.h new file mode 100644 index 0000000..207caca --- /dev/null +++ b/libs3cjpeg/Exif.h @@ -0,0 +1,227 @@ +/* + * Copyright Samsung Electronics Co.,LTD. + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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 ANDROID_HARDWARE_EXIF_H +#define ANDROID_HARDWARE_EXIF_H + +#include <math.h> + +#define EXIF_LOG2(x) (log((double)(x)) / log(2.0)) +#define APEX_FNUM_TO_APERTURE(x) ((int)(EXIF_LOG2((double)(x)) * 2 + 0.5)) +#define APEX_EXPOSURE_TO_SHUTTER(x) ((x) >= 1 ? \ + (int)(-(EXIF_LOG2((double)(x)) + 0.5)) : \ + (int)(-(EXIF_LOG2((double)(x)) - 0.5))) +#define APEX_ISO_TO_FILMSENSITIVITY(x) ((int)(EXIF_LOG2((x) / 3.125) + 0.5)) + +#define NUM_SIZE 2 +#define IFD_SIZE 12 +#define OFFSET_SIZE 4 + +#define NUM_0TH_IFD_TIFF 10 +#define NUM_0TH_IFD_EXIF 22 +#define NUM_0TH_IFD_GPS 7 +#define NUM_1TH_IFD_TIFF 9 + +/* Type */ +#define EXIF_TYPE_BYTE 1 +#define EXIF_TYPE_ASCII 2 +#define EXIF_TYPE_SHORT 3 +#define EXIF_TYPE_LONG 4 +#define EXIF_TYPE_RATIONAL 5 +#define EXIF_TYPE_UNDEFINED 7 +#define EXIF_TYPE_SLONG 9 +#define EXIF_TYPE_SRATIONAL 10 + +#define EXIF_FILE_SIZE 28800 + +/* 0th IFD TIFF Tags */ +#define EXIF_TAG_IMAGE_WIDTH 0x0100 +#define EXIF_TAG_IMAGE_HEIGHT 0x0101 +#define EXIF_TAG_MAKE 0x010f +#define EXIF_TAG_MODEL 0x0110 +#define EXIF_TAG_ORIENTATION 0x0112 +#define EXIF_TAG_SOFTWARE 0x0131 +#define EXIF_TAG_DATE_TIME 0x0132 +#define EXIF_TAG_YCBCR_POSITIONING 0x0213 +#define EXIF_TAG_EXIF_IFD_POINTER 0x8769 +#define EXIF_TAG_GPS_IFD_POINTER 0x8825 + +/* 0th IFD Exif Private Tags */ +#define EXIF_TAG_EXPOSURE_TIME 0x829A +#define EXIF_TAG_FNUMBER 0x829D +#define EXIF_TAG_EXPOSURE_PROGRAM 0x8822 +#define EXIF_TAG_ISO_SPEED_RATING 0x8827 +#define EXIF_TAG_EXIF_VERSION 0x9000 +#define EXIF_TAG_DATE_TIME_ORG 0x9003 +#define EXIF_TAG_DATE_TIME_DIGITIZE 0x9004 +#define EXIF_TAG_SHUTTER_SPEED 0x9201 +#define EXIF_TAG_APERTURE 0x9202 +#define EXIF_TAG_BRIGHTNESS 0x9203 +#define EXIF_TAG_EXPOSURE_BIAS 0x9204 +#define EXIF_TAG_MAX_APERTURE 0x9205 +#define EXIF_TAG_METERING_MODE 0x9207 +#define EXIF_TAG_FLASH 0x9209 +#define EXIF_TAG_FOCAL_LENGTH 0x920A +#define EXIF_TAG_USER_COMMENT 0x9286 +#define EXIF_TAG_COLOR_SPACE 0xA001 +#define EXIF_TAG_PIXEL_X_DIMENSION 0xA002 +#define EXIF_TAG_PIXEL_Y_DIMENSION 0xA003 +#define EXIF_TAG_EXPOSURE_MODE 0xA402 +#define EXIF_TAG_WHITE_BALANCE 0xA403 +#define EXIF_TAG_SCENCE_CAPTURE_TYPE 0xA406 + +/* 0th IFD GPS Info Tags */ +#define EXIF_TAG_GPS_VERSION_ID 0x0000 +#define EXIF_TAG_GPS_LATITUDE_REF 0x0001 +#define EXIF_TAG_GPS_LATITUDE 0x0002 +#define EXIF_TAG_GPS_LONGITUDE_REF 0x0003 +#define EXIF_TAG_GPS_LONGITUDE 0x0004 +#define EXIF_TAG_GPS_ALTITUDE_REF 0x0005 +#define EXIF_TAG_GPS_ALTITUDE 0x0006 + +/* 1th IFD TIFF Tags */ +#define EXIF_TAG_COMPRESSION_SCHEME 0x0103 +#define EXIF_TAG_X_RESOLUTION 0x011A +#define EXIF_TAG_Y_RESOLUTION 0x011B +#define EXIF_TAG_RESOLUTION_UNIT 0x0128 +#define EXIF_TAG_JPEG_INTERCHANGE_FORMAT 0x0201 +#define EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LEN 0x0202 + + +typedef enum { + EXIF_ORIENTATION_UP = 1, + EXIF_ORIENTATION_90 = 6, + EXIF_ORIENTATION_180 = 3, + EXIF_ORIENTATION_270 = 8, +} ExifOrientationType; + +typedef enum { + EXIF_SCENE_STANDARD, + EXIF_SCENE_LANDSCAPE, + EXIF_SCENE_PORTRAIT, + EXIF_SCENE_NIGHT, +} CamExifSceneCaptureType; + +typedef enum { + EXIF_METERING_UNKNOWN, + EXIF_METERING_AVERAGE, + EXIF_METERING_CENTER, + EXIF_METERING_SPOT, + EXIF_METERING_MULTISPOT, + EXIF_METERING_PATTERN, + EXIF_METERING_PARTIAL, + EXIF_METERING_OTHER = 255, +} CamExifMeteringModeType; + +typedef enum { + EXIF_EXPOSURE_AUTO, + EXIF_EXPOSURE_MANUAL, + EXIF_EXPOSURE_AUTO_BRACKET, +} CamExifExposureModeType; + +typedef enum { + EXIF_WB_AUTO, + EXIF_WB_MANUAL, +} CamExifWhiteBalanceType; + +/* Values */ +#define EXIF_DEF_MAKER "SAMSUNG" +#define EXIF_DEF_MODEL "GT-I9020" +#define EXIF_DEF_SOFTWARE "CRESPOJH2" +#define EXIF_DEF_EXIF_VERSION "0220" +#define EXIF_DEF_USERCOMMENTS "User comments" + +#define EXIF_DEF_YCBCR_POSITIONING 1 /* centered */ +#define EXIF_DEF_FNUMBER_NUM 26 /* 2.6 */ +#define EXIF_DEF_FNUMBER_DEN 10 +#define EXIF_DEF_EXPOSURE_PROGRAM 3 /* aperture priority */ +#define EXIF_DEF_FOCAL_LEN_NUM 278 /* 2.78mm */ +#define EXIF_DEF_FOCAL_LEN_DEN 100 +#define EXIF_DEF_FLASH 0 /* O: off, 1: on*/ +#define EXIF_DEF_COLOR_SPACE 1 +#define EXIF_DEF_EXPOSURE_MODE EXIF_EXPOSURE_AUTO +#define EXIF_DEF_APEX_DEN 10 + +#define EXIF_DEF_COMPRESSION 6 +#define EXIF_DEF_RESOLUTION_NUM 72 +#define EXIF_DEF_RESOLUTION_DEN 1 +#define EXIF_DEF_RESOLUTION_UNIT 2 /* inches */ + +typedef struct { + uint32_t num; + uint32_t den; +} rational_t; + +typedef struct { + int32_t num; + int32_t den; +} srational_t; + +typedef struct { + bool enableGps; + bool enableThumb; + + unsigned char maker[32]; + unsigned char model[32]; + unsigned char software[32]; + unsigned char exif_version[4]; + unsigned char date_time[20]; + unsigned char user_comment[150]; + + uint32_t width; + uint32_t height; + uint32_t widthThumb; + uint32_t heightThumb; + + uint16_t orientation; + uint16_t ycbcr_positioning; + uint16_t exposure_program; + uint16_t iso_speed_rating; + uint16_t metering_mode; + uint16_t flash; + uint16_t color_space; + uint16_t exposure_mode; + uint16_t white_balance; + uint16_t scene_capture_type; + + rational_t exposure_time; + rational_t fnumber; + rational_t aperture; + rational_t max_aperture; + rational_t focal_length; + + srational_t shutter_speed; + srational_t brightness; + srational_t exposure_bias; + + unsigned char gps_latitude_ref[2]; + unsigned char gps_longitude_ref[2]; + + uint8_t gps_version_id[4]; + uint8_t gps_altitude_ref; + + rational_t gps_latitude[3]; + rational_t gps_longitude[3]; + rational_t gps_altitude; + + rational_t x_resolution; + rational_t y_resolution; + uint16_t resolution_unit; + uint16_t compression_scheme; +} exif_attribute_t; + + +#endif /* ANDROID_HARDWARE_EXIF_H */ |