350 lines
12 KiB
C
350 lines
12 KiB
C
/*
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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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* Copyright (C) 2011-2017 Intel Corporation
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* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
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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 _EXIF_H_
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#define _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) (2 * (EXIF_LOG2((double)(x))))
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#define APEX_EXPOSURE_TO_SHUTTER(x) (-1.0 * (EXIF_LOG2((double)(x))))
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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 14
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#define NUM_0TH_IFD_EXIF 36
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#define NUM_0TH_IFD_GPS 12
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#define NUM_1TH_IFD_TIFF 9
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// For QVGA: 320 * 240 * 1.5
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#define EXIF_SIZE_LIMITATION 0x10000
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// Limite the thumbnail size to 32k, to make sure the whole exif size does
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// not exceed the exif size limitation. We guess the total size of all the
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// other fields is smaller than 32k. (Currently the size is about 26k.)
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#define THUMBNAIL_SIZE_LIMITATION 0x8000
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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_IMAGE_DESCRIPTION 0x010e
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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_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_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_COMPONENTS_CONFIGURATION 0x9101
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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_SUBJECT_DISTANCE 0x9206
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#define EXIF_TAG_METERING_MODE 0x9207
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#define EXIF_TAG_LIGHT_SOURCE 0x9208
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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_MAKER_NOTE 0x927C
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#define EXIF_TAG_USER_COMMENT 0x9286
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#define EXIF_TAG_SUBSEC_TIME 0x9290
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#define EXIF_TAG_SUBSEC_TIME_ORIG 0x9291
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#define EXIF_TAG_SUBSEC_TIME_DIG 0x9292
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#define EXIF_TAG_FLASH_PIX_VERSION 0xA000
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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_CUSTOM_RENDERED 0xA401
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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_JPEG_ZOOM_RATIO 0XA404
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#define EXIF_TAG_SCENCE_CAPTURE_TYPE 0xA406
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#define EXIF_TAG_GAIN_CONTROL 0xA407
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#define EXIF_TAG_CONTRAST 0xA408
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#define EXIF_TAG_SATURATION 0xA409
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#define EXIF_TAG_SHARPNESS 0xA40A
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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_IMG_DIRECTION_REF 0x0010
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#define EXIF_TAG_GPS_IMG_DIRECTION 0x0011
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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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/*
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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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*/
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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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NAMESPACE_DECLARATION {
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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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typedef enum
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{
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EXIF_LIGHT_SOURCE_UNKNOWN,
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EXIF_LIGHT_SOURCE_DAYLIGHT,
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EXIF_LIGHT_SOURCE_FLUORESCENT,
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EXIF_LIGHT_SOURCE_TUNGSTEN,
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EXIF_LIGHT_SOURCE_FLASH,
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EXIF_LIGHT_SOURCE_FINE_WEATHER = 9,
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EXIF_LIGHT_SOURCE_CLOUDY_WEATHER,
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EXIF_LIGHT_SOURCE_SHADE,
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EXIF_LIGHT_SOURCE_DAYLIGHT_FLUORESCENT,
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EXIF_LIGHT_SOURCE_DAY_WHITE_FLUORESCENT,
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EXIF_LIGHT_SOURCE_COOL_WHITE_FLUORESCENT,
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EXIF_LIGHT_SOURCE_WHITE_FLUORESCENT,
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EXIF_LIGHT_SOURCE_WARM_WHITE_FLUORESCENT, //value 16 is used in EXIF V2.3, not for EXIF V2.2
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EXIF_LIGHT_SOURCE_STANDARD_LIGHT_A,
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EXIF_LIGHT_SOURCE_STANDARD_LIGHT_B,
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EXIF_LIGHT_SOURCE_STANDARD_LIGHT_C,
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EXIF_LIGHT_SOURCE_D55,
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EXIF_LIGHT_SOURCE_D65,
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EXIF_LIGHT_SOURCE_D75,
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EXIF_LIGHT_SOURCE_D50,
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EXIF_LIGHT_SOURCE_ISO_STUDIO_TUNGSTEN,
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EXIF_LIGHT_SOURCE_OTHER_LIGHT_SOURCE = 255,
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} CamExifLightSourceType;
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typedef enum {
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EXIF_EXPOSURE_PROGRAM_MANUAL = 1,
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EXIF_EXPOSURE_PROGRAM_NORMAL = 2,
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EXIF_EXPOSURE_PROGRAM_APERTURE_PRIORITY = 3,
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EXIF_EXPOSURE_PROGRAM_SHUTTER_PRIORITY = 4
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} CamExifExposureProgramType;
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typedef enum {
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EXIF_CONTRAST_NORMAL = 0,
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EXIF_CONTRAST_SOFT = 1,
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EXIF_CONTRAST_HARD = 2,
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} CamExifContrastType;
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typedef enum {
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EXIF_SATURATION_NORMAL = 0,
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EXIF_SATURATION_LOW = 1,
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EXIF_SATURATION_HIGH = 2,
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} CamExifSaturationType;
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typedef enum {
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EXIF_SHARPNESS_NORMAL = 0,
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EXIF_SHARPNESS_SOFT = 1,
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EXIF_SHARPNESS_HARD = 2,
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} CamExifSharpnessType;
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/* define the flag of enable gps info */
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const uint8_t EXIF_GPS_LATITUDE = 0x01;
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const uint8_t EXIF_GPS_LONGITUDE = 0x02;
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const uint8_t EXIF_GPS_ALTITUDE = 0x04;
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const uint8_t EXIF_GPS_TIMESTAMP = 0x08;
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const uint8_t EXIF_GPS_PROCMETHOD = 0x10;
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const uint8_t EXIF_GPS_IMG_DIRECTION = 0x20;
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/* Values */
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#define EXIF_DEF_IMAGE_DESCRIPTION "Jpeg"
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#define EXIF_DEF_SOFTWARE "ChromeOS"
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#define EXIF_DEF_EXIF_VERSION "0220"
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#define EXIF_DEF_USERCOMMENTS " "
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#define EXIF_DEF_FLASHPIXVERSION "0100" /* Flashpix Format Version 1.0 */
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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_FLASH_FORCED_ON 1 << 3; /* mode description */
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#define EXIF_FLASH_FORCED_OFF 1 << 4; /* mode description */
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#define EXIF_FLASH_AUTO 1 << 3 | 1 << 4; /* mode description */
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#define EXIF_FLASH_ON 1 /* O: off, 1: on - fired or not*/
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#define EXIF_DEF_COLOR_SPACE 1
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#define EXIF_DEF_CUSTOM_RENDERED 0
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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_SUBJECT_DISTANCE_UNKNOWN 0
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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 enableThumb;
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uint8_t image_description[32];
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uint8_t flashpix_version[5];
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uint8_t components_configuration[4];
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uint8_t maker[32];
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uint8_t model[32];
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uint8_t software[32];
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uint8_t exif_version[5];
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uint8_t date_time[20];
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uint8_t subsec_time[8];
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uint8_t 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 custom_rendered;
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uint16_t exposure_mode;
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uint16_t white_balance;
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rational_t zoom_ratio;
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uint16_t scene_capture_type;
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uint16_t light_source;
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uint16_t gain_control;
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uint16_t contrast;
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uint16_t saturation;
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uint16_t sharpness;
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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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rational_t subject_distance;
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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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//bit 0~4 indicate whether Gps items latitude, longitude, altitude, timestamp,
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//datastamp exist or not.
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uint8_t enableGps;
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uint8_t gps_latitude_ref[2];
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uint8_t 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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uint8_t gps_datestamp[11];
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uint8_t gps_processing_method[100];
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uint8_t gps_img_direction_ref[2];
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rational_t gps_img_direction;
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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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uint16_t makerNoteDataSize;
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unsigned char *makerNoteData;
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} exif_attribute_t;
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} NAMESPACE_DECLARATION_END
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#endif /* _EXIF_H_ */
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