1 /* 2 * Copyright Samsung Electronics Co.,LTD. 3 * Copyright (C) 2010 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 #ifndef ANDROID_HARDWARE_EXIF_H 18 #define ANDROID_HARDWARE_EXIF_H 19 20 #include <math.h> 21 22 #define EXIF_LOG2(x) (log((double)(x)) / log(2.0)) 23 #define APEX_FNUM_TO_APERTURE(x) ((int)(EXIF_LOG2((double)(x)) * 2 + 0.5)) 24 #define APEX_EXPOSURE_TO_SHUTTER(x) ((x) >= 1 ? \ 25 (int)(-(EXIF_LOG2((double)(x)) + 0.5)) : \ 26 (int)(-(EXIF_LOG2((double)(x)) - 0.5))) 27 #define APEX_ISO_TO_FILMSENSITIVITY(x) ((int)(EXIF_LOG2((x) / 3.125) + 0.5)) 28 29 #define NUM_SIZE 2 30 #define IFD_SIZE 12 31 #define OFFSET_SIZE 4 32 33 #define NUM_0TH_IFD_TIFF 10 34 #define NUM_0TH_IFD_EXIF 22 35 #define NUM_0TH_IFD_GPS 10 36 #define NUM_1TH_IFD_TIFF 9 37 38 /* Type */ 39 #define EXIF_TYPE_BYTE 1 40 #define EXIF_TYPE_ASCII 2 41 #define EXIF_TYPE_SHORT 3 42 #define EXIF_TYPE_LONG 4 43 #define EXIF_TYPE_RATIONAL 5 44 #define EXIF_TYPE_UNDEFINED 7 45 #define EXIF_TYPE_SLONG 9 46 #define EXIF_TYPE_SRATIONAL 10 47 48 #define EXIF_FILE_SIZE 28800 49 50 /* 0th IFD TIFF Tags */ 51 #define EXIF_TAG_IMAGE_WIDTH 0x0100 52 #define EXIF_TAG_IMAGE_HEIGHT 0x0101 53 #define EXIF_TAG_MAKE 0x010f 54 #define EXIF_TAG_MODEL 0x0110 55 #define EXIF_TAG_ORIENTATION 0x0112 56 #define EXIF_TAG_SOFTWARE 0x0131 57 #define EXIF_TAG_DATE_TIME 0x0132 58 #define EXIF_TAG_YCBCR_POSITIONING 0x0213 59 #define EXIF_TAG_EXIF_IFD_POINTER 0x8769 60 #define EXIF_TAG_GPS_IFD_POINTER 0x8825 61 62 /* 0th IFD Exif Private Tags */ 63 #define EXIF_TAG_EXPOSURE_TIME 0x829A 64 #define EXIF_TAG_FNUMBER 0x829D 65 #define EXIF_TAG_EXPOSURE_PROGRAM 0x8822 66 #define EXIF_TAG_ISO_SPEED_RATING 0x8827 67 #define EXIF_TAG_EXIF_VERSION 0x9000 68 #define EXIF_TAG_DATE_TIME_ORG 0x9003 69 #define EXIF_TAG_DATE_TIME_DIGITIZE 0x9004 70 #define EXIF_TAG_SHUTTER_SPEED 0x9201 71 #define EXIF_TAG_APERTURE 0x9202 72 #define EXIF_TAG_BRIGHTNESS 0x9203 73 #define EXIF_TAG_EXPOSURE_BIAS 0x9204 74 #define EXIF_TAG_MAX_APERTURE 0x9205 75 #define EXIF_TAG_METERING_MODE 0x9207 76 #define EXIF_TAG_FLASH 0x9209 77 #define EXIF_TAG_FOCAL_LENGTH 0x920A 78 #define EXIF_TAG_USER_COMMENT 0x9286 79 #define EXIF_TAG_COLOR_SPACE 0xA001 80 #define EXIF_TAG_PIXEL_X_DIMENSION 0xA002 81 #define EXIF_TAG_PIXEL_Y_DIMENSION 0xA003 82 #define EXIF_TAG_EXPOSURE_MODE 0xA402 83 #define EXIF_TAG_WHITE_BALANCE 0xA403 84 #define EXIF_TAG_SCENCE_CAPTURE_TYPE 0xA406 85 86 /* 0th IFD GPS Info Tags */ 87 #define EXIF_TAG_GPS_VERSION_ID 0x0000 88 #define EXIF_TAG_GPS_LATITUDE_REF 0x0001 89 #define EXIF_TAG_GPS_LATITUDE 0x0002 90 #define EXIF_TAG_GPS_LONGITUDE_REF 0x0003 91 #define EXIF_TAG_GPS_LONGITUDE 0x0004 92 #define EXIF_TAG_GPS_ALTITUDE_REF 0x0005 93 #define EXIF_TAG_GPS_ALTITUDE 0x0006 94 #define EXIF_TAG_GPS_TIMESTAMP 0x0007 95 #define EXIF_TAG_GPS_PROCESSING_METHOD 0x001B 96 #define EXIF_TAG_GPS_DATESTAMP 0x001D 97 98 /* 1th IFD TIFF Tags */ 99 #define EXIF_TAG_COMPRESSION_SCHEME 0x0103 100 #define EXIF_TAG_X_RESOLUTION 0x011A 101 #define EXIF_TAG_Y_RESOLUTION 0x011B 102 #define EXIF_TAG_RESOLUTION_UNIT 0x0128 103 #define EXIF_TAG_JPEG_INTERCHANGE_FORMAT 0x0201 104 #define EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LEN 0x0202 105 106 107 typedef enum { 108 EXIF_ORIENTATION_UP = 1, 109 EXIF_ORIENTATION_90 = 6, 110 EXIF_ORIENTATION_180 = 3, 111 EXIF_ORIENTATION_270 = 8, 112 } ExifOrientationType; 113 114 typedef enum { 115 EXIF_SCENE_STANDARD, 116 EXIF_SCENE_LANDSCAPE, 117 EXIF_SCENE_PORTRAIT, 118 EXIF_SCENE_NIGHT, 119 } CamExifSceneCaptureType; 120 121 typedef enum { 122 EXIF_METERING_UNKNOWN, 123 EXIF_METERING_AVERAGE, 124 EXIF_METERING_CENTER, 125 EXIF_METERING_SPOT, 126 EXIF_METERING_MULTISPOT, 127 EXIF_METERING_PATTERN, 128 EXIF_METERING_PARTIAL, 129 EXIF_METERING_OTHER = 255, 130 } CamExifMeteringModeType; 131 132 typedef enum { 133 EXIF_EXPOSURE_AUTO, 134 EXIF_EXPOSURE_MANUAL, 135 EXIF_EXPOSURE_AUTO_BRACKET, 136 } CamExifExposureModeType; 137 138 typedef enum { 139 EXIF_WB_AUTO, 140 EXIF_WB_MANUAL, 141 } CamExifWhiteBalanceType; 142 143 /* Values */ 144 #define EXIF_DEF_MAKER "SAMSUNG" 145 #define EXIF_DEF_MODEL "GT-I9020" 146 #define EXIF_DEF_SOFTWARE "CRESPOJH2" 147 #define EXIF_DEF_EXIF_VERSION "0220" 148 #define EXIF_DEF_USERCOMMENTS "User comments" 149 150 #define EXIF_DEF_YCBCR_POSITIONING 1 /* centered */ 151 #define EXIF_DEF_FNUMBER_NUM 26 /* 2.6 */ 152 #define EXIF_DEF_FNUMBER_DEN 10 153 #define EXIF_DEF_EXPOSURE_PROGRAM 3 /* aperture priority */ 154 #define EXIF_DEF_FOCAL_LEN_NUM 278 /* 2.78mm */ 155 #define EXIF_DEF_FOCAL_LEN_DEN 100 156 #define EXIF_DEF_FLASH 0 /* O: off, 1: on*/ 157 #define EXIF_DEF_COLOR_SPACE 1 158 #define EXIF_DEF_EXPOSURE_MODE EXIF_EXPOSURE_AUTO 159 #define EXIF_DEF_APEX_DEN 10 160 161 #define EXIF_DEF_COMPRESSION 6 162 #define EXIF_DEF_RESOLUTION_NUM 72 163 #define EXIF_DEF_RESOLUTION_DEN 1 164 #define EXIF_DEF_RESOLUTION_UNIT 2 /* inches */ 165 166 typedef struct { 167 uint32_t num; 168 uint32_t den; 169 } rational_t; 170 171 typedef struct { 172 int32_t num; 173 int32_t den; 174 } srational_t; 175 176 typedef struct { 177 bool enableGps; 178 bool enableThumb; 179 180 unsigned char maker[32]; 181 unsigned char model[32]; 182 unsigned char software[32]; 183 unsigned char exif_version[4]; 184 unsigned char date_time[20]; 185 unsigned char user_comment[150]; 186 187 uint32_t width; 188 uint32_t height; 189 uint32_t widthThumb; 190 uint32_t heightThumb; 191 192 uint16_t orientation; 193 uint16_t ycbcr_positioning; 194 uint16_t exposure_program; 195 uint16_t iso_speed_rating; 196 uint16_t metering_mode; 197 uint16_t flash; 198 uint16_t color_space; 199 uint16_t exposure_mode; 200 uint16_t white_balance; 201 uint16_t scene_capture_type; 202 203 rational_t exposure_time; 204 rational_t fnumber; 205 rational_t aperture; 206 rational_t max_aperture; 207 rational_t focal_length; 208 209 srational_t shutter_speed; 210 srational_t brightness; 211 srational_t exposure_bias; 212 213 unsigned char gps_latitude_ref[2]; 214 unsigned char gps_longitude_ref[2]; 215 216 uint8_t gps_version_id[4]; 217 uint8_t gps_altitude_ref; 218 219 rational_t gps_latitude[3]; 220 rational_t gps_longitude[3]; 221 rational_t gps_altitude; 222 rational_t gps_timestamp[3]; 223 unsigned char gps_datestamp[11]; 224 unsigned char gps_processing_method[100]; 225 226 rational_t x_resolution; 227 rational_t y_resolution; 228 uint16_t resolution_unit; 229 uint16_t compression_scheme; 230 } exif_attribute_t; 231 232 233 #endif /* ANDROID_HARDWARE_EXIF_H */ 234
