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233 lines
7.6 KiB
233 lines
7.6 KiB
/*
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* Copyright Samsung Electronics Co.,LTD.
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_EXIF_H
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#define ANDROID_HARDWARE_EXIF_H
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#include <math.h>
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#define EXIF_LOG2(x) (log((double)(x)) / log(2.0))
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#define APEX_FNUM_TO_APERTURE(x) ((int)(EXIF_LOG2((double)(x)) * 2 + 0.5))
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#define APEX_EXPOSURE_TO_SHUTTER(x) ((x) >= 1 ? \
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(int)(-(EXIF_LOG2((double)(x)) + 0.5)) : \
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(int)(-(EXIF_LOG2((double)(x)) - 0.5)))
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#define APEX_ISO_TO_FILMSENSITIVITY(x) ((int)(EXIF_LOG2((x) / 3.125) + 0.5))
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#define NUM_SIZE 2
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#define IFD_SIZE 12
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#define OFFSET_SIZE 4
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#define NUM_0TH_IFD_TIFF 10
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#define NUM_0TH_IFD_EXIF 22
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#define NUM_0TH_IFD_GPS 10
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#define NUM_1TH_IFD_TIFF 9
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/* Type */
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#define EXIF_TYPE_BYTE 1
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#define EXIF_TYPE_ASCII 2
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#define EXIF_TYPE_SHORT 3
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#define EXIF_TYPE_LONG 4
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#define EXIF_TYPE_RATIONAL 5
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#define EXIF_TYPE_UNDEFINED 7
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#define EXIF_TYPE_SLONG 9
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#define EXIF_TYPE_SRATIONAL 10
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#define EXIF_FILE_SIZE 28800
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/* 0th IFD TIFF Tags */
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#define EXIF_TAG_IMAGE_WIDTH 0x0100
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#define EXIF_TAG_IMAGE_HEIGHT 0x0101
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#define EXIF_TAG_MAKE 0x010f
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#define EXIF_TAG_MODEL 0x0110
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#define EXIF_TAG_ORIENTATION 0x0112
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#define EXIF_TAG_SOFTWARE 0x0131
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#define EXIF_TAG_DATE_TIME 0x0132
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#define EXIF_TAG_YCBCR_POSITIONING 0x0213
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#define EXIF_TAG_EXIF_IFD_POINTER 0x8769
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#define EXIF_TAG_GPS_IFD_POINTER 0x8825
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/* 0th IFD Exif Private Tags */
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#define EXIF_TAG_EXPOSURE_TIME 0x829A
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#define EXIF_TAG_FNUMBER 0x829D
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#define EXIF_TAG_EXPOSURE_PROGRAM 0x8822
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#define EXIF_TAG_ISO_SPEED_RATING 0x8827
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#define EXIF_TAG_EXIF_VERSION 0x9000
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#define EXIF_TAG_DATE_TIME_ORG 0x9003
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#define EXIF_TAG_DATE_TIME_DIGITIZE 0x9004
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#define EXIF_TAG_SHUTTER_SPEED 0x9201
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#define EXIF_TAG_APERTURE 0x9202
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#define EXIF_TAG_BRIGHTNESS 0x9203
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#define EXIF_TAG_EXPOSURE_BIAS 0x9204
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#define EXIF_TAG_MAX_APERTURE 0x9205
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#define EXIF_TAG_METERING_MODE 0x9207
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#define EXIF_TAG_FLASH 0x9209
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#define EXIF_TAG_FOCAL_LENGTH 0x920A
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#define EXIF_TAG_USER_COMMENT 0x9286
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#define EXIF_TAG_COLOR_SPACE 0xA001
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#define EXIF_TAG_PIXEL_X_DIMENSION 0xA002
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#define EXIF_TAG_PIXEL_Y_DIMENSION 0xA003
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#define EXIF_TAG_EXPOSURE_MODE 0xA402
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#define EXIF_TAG_WHITE_BALANCE 0xA403
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#define EXIF_TAG_SCENCE_CAPTURE_TYPE 0xA406
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/* 0th IFD GPS Info Tags */
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#define EXIF_TAG_GPS_VERSION_ID 0x0000
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#define EXIF_TAG_GPS_LATITUDE_REF 0x0001
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#define EXIF_TAG_GPS_LATITUDE 0x0002
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#define EXIF_TAG_GPS_LONGITUDE_REF 0x0003
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#define EXIF_TAG_GPS_LONGITUDE 0x0004
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#define EXIF_TAG_GPS_ALTITUDE_REF 0x0005
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#define EXIF_TAG_GPS_ALTITUDE 0x0006
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#define EXIF_TAG_GPS_TIMESTAMP 0x0007
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#define EXIF_TAG_GPS_PROCESSING_METHOD 0x001B
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#define EXIF_TAG_GPS_DATESTAMP 0x001D
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/* 1th IFD TIFF Tags */
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#define EXIF_TAG_COMPRESSION_SCHEME 0x0103
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#define EXIF_TAG_X_RESOLUTION 0x011A
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#define EXIF_TAG_Y_RESOLUTION 0x011B
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#define EXIF_TAG_RESOLUTION_UNIT 0x0128
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#define EXIF_TAG_JPEG_INTERCHANGE_FORMAT 0x0201
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#define EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LEN 0x0202
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typedef enum {
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EXIF_ORIENTATION_UP = 1,
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EXIF_ORIENTATION_90 = 6,
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EXIF_ORIENTATION_180 = 3,
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EXIF_ORIENTATION_270 = 8,
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} ExifOrientationType;
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typedef enum {
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EXIF_SCENE_STANDARD,
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EXIF_SCENE_LANDSCAPE,
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EXIF_SCENE_PORTRAIT,
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EXIF_SCENE_NIGHT,
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} CamExifSceneCaptureType;
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typedef enum {
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EXIF_METERING_UNKNOWN,
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EXIF_METERING_AVERAGE,
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EXIF_METERING_CENTER,
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EXIF_METERING_SPOT,
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EXIF_METERING_MULTISPOT,
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EXIF_METERING_PATTERN,
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EXIF_METERING_PARTIAL,
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EXIF_METERING_OTHER = 255,
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} CamExifMeteringModeType;
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typedef enum {
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EXIF_EXPOSURE_AUTO,
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EXIF_EXPOSURE_MANUAL,
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EXIF_EXPOSURE_AUTO_BRACKET,
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} CamExifExposureModeType;
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typedef enum {
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EXIF_WB_AUTO,
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EXIF_WB_MANUAL,
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} CamExifWhiteBalanceType;
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/* Values */
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#define EXIF_DEF_MAKER "SAMSUNG"
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#define EXIF_DEF_MODEL "GT-I9020"
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#define EXIF_DEF_SOFTWARE "CRESPOJH2"
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#define EXIF_DEF_EXIF_VERSION "0220"
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#define EXIF_DEF_USERCOMMENTS "User comments"
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#define EXIF_DEF_YCBCR_POSITIONING 1 /* centered */
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#define EXIF_DEF_FNUMBER_NUM 26 /* 2.6 */
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#define EXIF_DEF_FNUMBER_DEN 10
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#define EXIF_DEF_EXPOSURE_PROGRAM 3 /* aperture priority */
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#define EXIF_DEF_FOCAL_LEN_NUM 278 /* 2.78mm */
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#define EXIF_DEF_FOCAL_LEN_DEN 100
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#define EXIF_DEF_FLASH 0 /* O: off, 1: on*/
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#define EXIF_DEF_COLOR_SPACE 1
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#define EXIF_DEF_EXPOSURE_MODE EXIF_EXPOSURE_AUTO
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#define EXIF_DEF_APEX_DEN 10
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#define EXIF_DEF_COMPRESSION 6
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#define EXIF_DEF_RESOLUTION_NUM 72
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#define EXIF_DEF_RESOLUTION_DEN 1
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#define EXIF_DEF_RESOLUTION_UNIT 2 /* inches */
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typedef struct {
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uint32_t num;
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uint32_t den;
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} rational_t;
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typedef struct {
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int32_t num;
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int32_t den;
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} srational_t;
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typedef struct {
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bool enableGps;
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bool enableThumb;
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unsigned char maker[32];
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unsigned char model[32];
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unsigned char software[32];
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unsigned char exif_version[4];
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unsigned char date_time[20];
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unsigned char user_comment[150];
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uint32_t width;
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uint32_t height;
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uint32_t widthThumb;
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uint32_t heightThumb;
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uint16_t orientation;
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uint16_t ycbcr_positioning;
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uint16_t exposure_program;
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uint16_t iso_speed_rating;
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uint16_t metering_mode;
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uint16_t flash;
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uint16_t color_space;
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uint16_t exposure_mode;
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uint16_t white_balance;
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uint16_t scene_capture_type;
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rational_t exposure_time;
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rational_t fnumber;
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rational_t aperture;
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rational_t max_aperture;
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rational_t focal_length;
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srational_t shutter_speed;
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srational_t brightness;
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srational_t exposure_bias;
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unsigned char gps_latitude_ref[2];
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unsigned char gps_longitude_ref[2];
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uint8_t gps_version_id[4];
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uint8_t gps_altitude_ref;
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rational_t gps_latitude[3];
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rational_t gps_longitude[3];
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rational_t gps_altitude;
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rational_t gps_timestamp[3];
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unsigned char gps_datestamp[11];
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unsigned char gps_processing_method[100];
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rational_t x_resolution;
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rational_t y_resolution;
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uint16_t resolution_unit;
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uint16_t compression_scheme;
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} exif_attribute_t;
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#endif /* ANDROID_HARDWARE_EXIF_H */
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