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1116 lines
40 KiB
1116 lines
40 KiB
/*
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* Copyright (C) 2018 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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#define LOG_TAG "CamComm1.0-Exif"
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#define ATRACE_TAG ATRACE_TAG_CAMERA
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//#define LOG_NDEBUG 0
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#include <android/log.h>
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#include <inttypes.h>
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#include <math.h>
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#include <stdint.h>
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#include <string>
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#include <vector>
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#include "Exif.h"
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extern "C" {
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#include <libexif/exif-data.h>
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}
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namespace std {
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template <>
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struct default_delete<ExifEntry> {
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inline void operator()(ExifEntry* entry) const { exif_entry_unref(entry); }
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};
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} // namespace std
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namespace android {
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namespace hardware {
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namespace camera {
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namespace common {
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namespace V1_0 {
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namespace helper {
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class ExifUtilsImpl : public ExifUtils {
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public:
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ExifUtilsImpl();
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virtual ~ExifUtilsImpl();
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// Initialize() can be called multiple times. The setting of Exif tags will be
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// cleared.
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virtual bool initialize();
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// set all known fields from a metadata structure
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virtual bool setFromMetadata(const CameraMetadata& metadata,
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const size_t imageWidth,
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const size_t imageHeight);
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// sets the len aperture.
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// Returns false if memory allocation fails.
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virtual bool setAperture(uint32_t numerator, uint32_t denominator);
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// sets the value of brightness.
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// Returns false if memory allocation fails.
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virtual bool setBrightness(int32_t numerator, int32_t denominator);
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// sets the color space.
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// Returns false if memory allocation fails.
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virtual bool setColorSpace(uint16_t color_space);
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// sets the information to compressed data.
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// Returns false if memory allocation fails.
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virtual bool setComponentsConfiguration(const std::string& components_configuration);
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// sets the compression scheme used for the image data.
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// Returns false if memory allocation fails.
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virtual bool setCompression(uint16_t compression);
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// sets image contrast.
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// Returns false if memory allocation fails.
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virtual bool setContrast(uint16_t contrast);
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// sets the date and time of image last modified. It takes local time. The
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// name of the tag is DateTime in IFD0.
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// Returns false if memory allocation fails.
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virtual bool setDateTime(const struct tm& t);
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// sets the image description.
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// Returns false if memory allocation fails.
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virtual bool setDescription(const std::string& description);
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// sets the digital zoom ratio. If the numerator is 0, it means digital zoom
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// was not used.
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// Returns false if memory allocation fails.
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virtual bool setDigitalZoomRatio(uint32_t numerator, uint32_t denominator);
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// sets the exposure bias.
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// Returns false if memory allocation fails.
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virtual bool setExposureBias(int32_t numerator, int32_t denominator);
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// sets the exposure mode set when the image was shot.
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// Returns false if memory allocation fails.
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virtual bool setExposureMode(uint16_t exposure_mode);
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// sets the program used by the camera to set exposure when the picture is
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// taken.
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// Returns false if memory allocation fails.
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virtual bool setExposureProgram(uint16_t exposure_program);
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// sets the exposure time, given in seconds.
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// Returns false if memory allocation fails.
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virtual bool setExposureTime(uint32_t numerator, uint32_t denominator);
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// sets the status of flash.
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// Returns false if memory allocation fails.
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virtual bool setFlash(uint16_t flash);
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// sets the F number.
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// Returns false if memory allocation fails.
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virtual bool setFNumber(uint32_t numerator, uint32_t denominator);
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// sets the focal length of lens used to take the image in millimeters.
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// Returns false if memory allocation fails.
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virtual bool setFocalLength(uint32_t numerator, uint32_t denominator);
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// sets the degree of overall image gain adjustment.
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// Returns false if memory allocation fails.
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virtual bool setGainControl(uint16_t gain_control);
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// sets the altitude in meters.
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// Returns false if memory allocation fails.
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virtual bool setGpsAltitude(double altitude);
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// sets the latitude with degrees minutes seconds format.
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// Returns false if memory allocation fails.
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virtual bool setGpsLatitude(double latitude);
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// sets the longitude with degrees minutes seconds format.
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// Returns false if memory allocation fails.
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virtual bool setGpsLongitude(double longitude);
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// sets GPS processing method.
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// Returns false if memory allocation fails.
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virtual bool setGpsProcessingMethod(const std::string& method);
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// sets GPS date stamp and time stamp (atomic clock). It takes UTC time.
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// Returns false if memory allocation fails.
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virtual bool setGpsTimestamp(const struct tm& t);
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// sets the length (number of rows) of main image.
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// Returns false if memory allocation fails.
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virtual bool setImageHeight(uint32_t length);
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// sets the width (number of columes) of main image.
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// Returns false if memory allocation fails.
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virtual bool setImageWidth(uint32_t width);
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// sets the ISO speed.
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// Returns false if memory allocation fails.
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virtual bool setIsoSpeedRating(uint16_t iso_speed_ratings);
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// sets the kind of light source.
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// Returns false if memory allocation fails.
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virtual bool setLightSource(uint16_t light_source);
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// sets the smallest F number of the lens.
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// Returns false if memory allocation fails.
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virtual bool setMaxAperture(uint32_t numerator, uint32_t denominator);
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// sets the metering mode.
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// Returns false if memory allocation fails.
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virtual bool setMeteringMode(uint16_t metering_mode);
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// sets image orientation.
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// Returns false if memory allocation fails.
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virtual bool setOrientation(uint16_t orientation);
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// sets the unit for measuring XResolution and YResolution.
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// Returns false if memory allocation fails.
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virtual bool setResolutionUnit(uint16_t resolution_unit);
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// sets image saturation.
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// Returns false if memory allocation fails.
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virtual bool setSaturation(uint16_t saturation);
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// sets the type of scene that was shot.
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// Returns false if memory allocation fails.
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virtual bool setSceneCaptureType(uint16_t type);
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// sets image sharpness.
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// Returns false if memory allocation fails.
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virtual bool setSharpness(uint16_t sharpness);
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// sets the shutter speed.
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// Returns false if memory allocation fails.
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virtual bool setShutterSpeed(int32_t numerator, int32_t denominator);
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// sets the distance to the subject, given in meters.
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// Returns false if memory allocation fails.
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virtual bool setSubjectDistance(uint32_t numerator, uint32_t denominator);
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// sets the fractions of seconds for the <DateTime> tag.
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// Returns false if memory allocation fails.
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virtual bool setSubsecTime(const std::string& subsec_time);
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// sets the white balance mode set when the image was shot.
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// Returns false if memory allocation fails.
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virtual bool setWhiteBalance(uint16_t white_balance);
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// sets the number of pixels per resolution unit in the image width.
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// Returns false if memory allocation fails.
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virtual bool setXResolution(uint32_t numerator, uint32_t denominator);
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// sets the position of chrominance components in relation to the luminance
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// component.
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// Returns false if memory allocation fails.
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virtual bool setYCbCrPositioning(uint16_t ycbcr_positioning);
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// sets the number of pixels per resolution unit in the image length.
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// Returns false if memory allocation fails.
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virtual bool setYResolution(uint32_t numerator, uint32_t denominator);
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// sets the manufacturer of camera.
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// Returns false if memory allocation fails.
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virtual bool setMake(const std::string& make);
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// sets the model number of camera.
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// Returns false if memory allocation fails.
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virtual bool setModel(const std::string& model);
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// Generates APP1 segment.
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// Returns false if generating APP1 segment fails.
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virtual bool generateApp1(const void* thumbnail_buffer, uint32_t size);
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// Gets buffer of APP1 segment. This method must be called only after calling
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// GenerateAPP1().
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virtual const uint8_t* getApp1Buffer();
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// Gets length of APP1 segment. This method must be called only after calling
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// GenerateAPP1().
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virtual unsigned int getApp1Length();
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protected:
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// sets the version of this standard supported.
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// Returns false if memory allocation fails.
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virtual bool setExifVersion(const std::string& exif_version);
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// Resets the pointers and memories.
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virtual void reset();
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// Adds a variable length tag to |exif_data_|. It will remove the original one
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// if the tag exists.
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// Returns the entry of the tag. The reference count of returned ExifEntry is
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// two.
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virtual std::unique_ptr<ExifEntry> addVariableLengthEntry(ExifIfd ifd,
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ExifTag tag,
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ExifFormat format,
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uint64_t components,
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unsigned int size);
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// Adds a entry of |tag| in |exif_data_|. It won't remove the original one if
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// the tag exists.
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// Returns the entry of the tag. It adds one reference count to returned
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// ExifEntry.
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virtual std::unique_ptr<ExifEntry> addEntry(ExifIfd ifd, ExifTag tag);
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// Helpe functions to add exif data with different types.
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virtual bool setShort(ExifIfd ifd,
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ExifTag tag,
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uint16_t value,
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const std::string& msg);
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virtual bool setLong(ExifIfd ifd,
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ExifTag tag,
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uint32_t value,
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const std::string& msg);
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virtual bool setRational(ExifIfd ifd,
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ExifTag tag,
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uint32_t numerator,
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uint32_t denominator,
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const std::string& msg);
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virtual bool setSRational(ExifIfd ifd,
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ExifTag tag,
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int32_t numerator,
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int32_t denominator,
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const std::string& msg);
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virtual bool setString(ExifIfd ifd,
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ExifTag tag,
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ExifFormat format,
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const std::string& buffer,
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const std::string& msg);
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// Destroys the buffer of APP1 segment if exists.
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virtual void destroyApp1();
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// The Exif data (APP1). Owned by this class.
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ExifData* exif_data_;
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// The raw data of APP1 segment. It's allocated by ExifMem in |exif_data_| but
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// owned by this class.
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uint8_t* app1_buffer_;
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// The length of |app1_buffer_|.
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unsigned int app1_length_;
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};
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#define SET_SHORT(ifd, tag, value) \
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do { \
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if (setShort(ifd, tag, value, #tag) == false) \
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return false; \
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} while (0);
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#define SET_LONG(ifd, tag, value) \
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do { \
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if (setLong(ifd, tag, value, #tag) == false) \
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return false; \
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} while (0);
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#define SET_RATIONAL(ifd, tag, numerator, denominator) \
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do { \
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if (setRational(ifd, tag, numerator, denominator, #tag) == false) \
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return false; \
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} while (0);
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#define SET_SRATIONAL(ifd, tag, numerator, denominator) \
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do { \
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if (setSRational(ifd, tag, numerator, denominator, #tag) == false) \
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return false; \
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} while (0);
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#define SET_STRING(ifd, tag, format, buffer) \
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do { \
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if (setString(ifd, tag, format, buffer, #tag) == false) \
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return false; \
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} while (0);
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// This comes from the Exif Version 2.2 standard table 6.
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const char gExifAsciiPrefix[] = {0x41, 0x53, 0x43, 0x49, 0x49, 0x0, 0x0, 0x0};
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static void setLatitudeOrLongitudeData(unsigned char* data, double num) {
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// Take the integer part of |num|.
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ExifLong degrees = static_cast<ExifLong>(num);
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ExifLong minutes = static_cast<ExifLong>(60 * (num - degrees));
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ExifLong microseconds =
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static_cast<ExifLong>(3600000000u * (num - degrees - minutes / 60.0));
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exif_set_rational(data, EXIF_BYTE_ORDER_INTEL, {degrees, 1});
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exif_set_rational(data + sizeof(ExifRational), EXIF_BYTE_ORDER_INTEL,
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{minutes, 1});
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exif_set_rational(data + 2 * sizeof(ExifRational), EXIF_BYTE_ORDER_INTEL,
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{microseconds, 1000000});
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}
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ExifUtils *ExifUtils::create() {
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return new ExifUtilsImpl();
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}
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ExifUtils::~ExifUtils() {
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}
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ExifUtilsImpl::ExifUtilsImpl()
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: exif_data_(nullptr), app1_buffer_(nullptr), app1_length_(0) {}
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ExifUtilsImpl::~ExifUtilsImpl() {
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reset();
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}
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bool ExifUtilsImpl::initialize() {
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reset();
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exif_data_ = exif_data_new();
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if (exif_data_ == nullptr) {
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ALOGE("%s: allocate memory for exif_data_ failed", __FUNCTION__);
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return false;
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}
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// set the image options.
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exif_data_set_option(exif_data_, EXIF_DATA_OPTION_FOLLOW_SPECIFICATION);
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exif_data_set_data_type(exif_data_, EXIF_DATA_TYPE_COMPRESSED);
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exif_data_set_byte_order(exif_data_, EXIF_BYTE_ORDER_INTEL);
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// set exif version to 2.2.
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if (!setExifVersion("0220")) {
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return false;
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}
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return true;
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}
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bool ExifUtilsImpl::setAperture(uint32_t numerator, uint32_t denominator) {
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SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_APERTURE_VALUE, numerator, denominator);
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return true;
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}
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bool ExifUtilsImpl::setBrightness(int32_t numerator, int32_t denominator) {
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SET_SRATIONAL(EXIF_IFD_EXIF, EXIF_TAG_BRIGHTNESS_VALUE, numerator,
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denominator);
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return true;
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}
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bool ExifUtilsImpl::setColorSpace(uint16_t color_space) {
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SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_COLOR_SPACE, color_space);
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return true;
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}
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bool ExifUtilsImpl::setComponentsConfiguration(
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const std::string& components_configuration) {
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SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_COMPONENTS_CONFIGURATION,
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EXIF_FORMAT_UNDEFINED, components_configuration);
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return true;
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}
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bool ExifUtilsImpl::setCompression(uint16_t compression) {
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SET_SHORT(EXIF_IFD_0, EXIF_TAG_COMPRESSION, compression);
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return true;
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}
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bool ExifUtilsImpl::setContrast(uint16_t contrast) {
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SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_CONTRAST, contrast);
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return true;
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}
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bool ExifUtilsImpl::setDateTime(const struct tm& t) {
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// The length is 20 bytes including NULL for termination in Exif standard.
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char str[20];
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int result = snprintf(str, sizeof(str), "%04i:%02i:%02i %02i:%02i:%02i",
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t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour,
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t.tm_min, t.tm_sec);
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if (result != sizeof(str) - 1) {
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ALOGW("%s: Input time is invalid", __FUNCTION__);
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return false;
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}
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std::string buffer(str);
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SET_STRING(EXIF_IFD_0, EXIF_TAG_DATE_TIME, EXIF_FORMAT_ASCII, buffer);
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SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_DATE_TIME_ORIGINAL, EXIF_FORMAT_ASCII,
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buffer);
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SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_DATE_TIME_DIGITIZED, EXIF_FORMAT_ASCII,
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buffer);
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return true;
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}
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bool ExifUtilsImpl::setDescription(const std::string& description) {
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SET_STRING(EXIF_IFD_0, EXIF_TAG_IMAGE_DESCRIPTION, EXIF_FORMAT_ASCII,
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description);
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return true;
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}
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bool ExifUtilsImpl::setDigitalZoomRatio(uint32_t numerator, uint32_t denominator) {
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SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_DIGITAL_ZOOM_RATIO, numerator,
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denominator);
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return true;
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}
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bool ExifUtilsImpl::setExposureBias(int32_t numerator, int32_t denominator) {
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SET_SRATIONAL(EXIF_IFD_EXIF, EXIF_TAG_EXPOSURE_BIAS_VALUE, numerator,
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denominator);
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return true;
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}
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bool ExifUtilsImpl::setExposureMode(uint16_t exposure_mode) {
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SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_EXPOSURE_MODE, exposure_mode);
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return true;
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}
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bool ExifUtilsImpl::setExposureProgram(uint16_t exposure_program) {
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SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_EXPOSURE_PROGRAM, exposure_program);
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return true;
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}
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bool ExifUtilsImpl::setExposureTime(uint32_t numerator, uint32_t denominator) {
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SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_EXPOSURE_TIME, numerator, denominator);
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return true;
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}
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bool ExifUtilsImpl::setFlash(uint16_t flash) {
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SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_FLASH, flash);
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return true;
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}
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bool ExifUtilsImpl::setFNumber(uint32_t numerator, uint32_t denominator) {
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SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_FNUMBER, numerator, denominator);
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return true;
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}
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bool ExifUtilsImpl::setFocalLength(uint32_t numerator, uint32_t denominator) {
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SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_FOCAL_LENGTH, numerator, denominator);
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return true;
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}
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bool ExifUtilsImpl::setGainControl(uint16_t gain_control) {
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SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_GAIN_CONTROL, gain_control);
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return true;
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}
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bool ExifUtilsImpl::setGpsAltitude(double altitude) {
|
|
ExifTag refTag = static_cast<ExifTag>(EXIF_TAG_GPS_ALTITUDE_REF);
|
|
std::unique_ptr<ExifEntry> refEntry =
|
|
addVariableLengthEntry(EXIF_IFD_GPS, refTag, EXIF_FORMAT_BYTE, 1, 1);
|
|
if (!refEntry) {
|
|
ALOGE("%s: Adding GPSAltitudeRef exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
if (altitude >= 0) {
|
|
*refEntry->data = 0;
|
|
} else {
|
|
*refEntry->data = 1;
|
|
altitude *= -1;
|
|
}
|
|
|
|
ExifTag tag = static_cast<ExifTag>(EXIF_TAG_GPS_ALTITUDE);
|
|
std::unique_ptr<ExifEntry> entry = addVariableLengthEntry(
|
|
EXIF_IFD_GPS, tag, EXIF_FORMAT_RATIONAL, 1, sizeof(ExifRational));
|
|
if (!entry) {
|
|
exif_content_remove_entry(exif_data_->ifd[EXIF_IFD_GPS], refEntry.get());
|
|
ALOGE("%s: Adding GPSAltitude exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
exif_set_rational(entry->data, EXIF_BYTE_ORDER_INTEL,
|
|
{static_cast<ExifLong>(altitude * 1000), 1000});
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setGpsLatitude(double latitude) {
|
|
const ExifTag refTag = static_cast<ExifTag>(EXIF_TAG_GPS_LATITUDE_REF);
|
|
std::unique_ptr<ExifEntry> refEntry =
|
|
addVariableLengthEntry(EXIF_IFD_GPS, refTag, EXIF_FORMAT_ASCII, 2, 2);
|
|
if (!refEntry) {
|
|
ALOGE("%s: Adding GPSLatitudeRef exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
if (latitude >= 0) {
|
|
memcpy(refEntry->data, "N", sizeof("N"));
|
|
} else {
|
|
memcpy(refEntry->data, "S", sizeof("S"));
|
|
latitude *= -1;
|
|
}
|
|
|
|
const ExifTag tag = static_cast<ExifTag>(EXIF_TAG_GPS_LATITUDE);
|
|
std::unique_ptr<ExifEntry> entry = addVariableLengthEntry(
|
|
EXIF_IFD_GPS, tag, EXIF_FORMAT_RATIONAL, 3, 3 * sizeof(ExifRational));
|
|
if (!entry) {
|
|
exif_content_remove_entry(exif_data_->ifd[EXIF_IFD_GPS], refEntry.get());
|
|
ALOGE("%s: Adding GPSLatitude exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
setLatitudeOrLongitudeData(entry->data, latitude);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setGpsLongitude(double longitude) {
|
|
ExifTag refTag = static_cast<ExifTag>(EXIF_TAG_GPS_LONGITUDE_REF);
|
|
std::unique_ptr<ExifEntry> refEntry =
|
|
addVariableLengthEntry(EXIF_IFD_GPS, refTag, EXIF_FORMAT_ASCII, 2, 2);
|
|
if (!refEntry) {
|
|
ALOGE("%s: Adding GPSLongitudeRef exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
if (longitude >= 0) {
|
|
memcpy(refEntry->data, "E", sizeof("E"));
|
|
} else {
|
|
memcpy(refEntry->data, "W", sizeof("W"));
|
|
longitude *= -1;
|
|
}
|
|
|
|
ExifTag tag = static_cast<ExifTag>(EXIF_TAG_GPS_LONGITUDE);
|
|
std::unique_ptr<ExifEntry> entry = addVariableLengthEntry(
|
|
EXIF_IFD_GPS, tag, EXIF_FORMAT_RATIONAL, 3, 3 * sizeof(ExifRational));
|
|
if (!entry) {
|
|
exif_content_remove_entry(exif_data_->ifd[EXIF_IFD_GPS], refEntry.get());
|
|
ALOGE("%s: Adding GPSLongitude exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
setLatitudeOrLongitudeData(entry->data, longitude);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setGpsProcessingMethod(const std::string& method) {
|
|
std::string buffer =
|
|
std::string(gExifAsciiPrefix, sizeof(gExifAsciiPrefix)) + method;
|
|
SET_STRING(EXIF_IFD_GPS, static_cast<ExifTag>(EXIF_TAG_GPS_PROCESSING_METHOD),
|
|
EXIF_FORMAT_UNDEFINED, buffer);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setGpsTimestamp(const struct tm& t) {
|
|
const ExifTag dateTag = static_cast<ExifTag>(EXIF_TAG_GPS_DATE_STAMP);
|
|
const size_t kGpsDateStampSize = 11;
|
|
std::unique_ptr<ExifEntry> entry =
|
|
addVariableLengthEntry(EXIF_IFD_GPS, dateTag, EXIF_FORMAT_ASCII,
|
|
kGpsDateStampSize, kGpsDateStampSize);
|
|
if (!entry) {
|
|
ALOGE("%s: Adding GPSDateStamp exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
int result =
|
|
snprintf(reinterpret_cast<char*>(entry->data), kGpsDateStampSize,
|
|
"%04i:%02i:%02i", t.tm_year + 1900, t.tm_mon + 1, t.tm_mday);
|
|
if (result != kGpsDateStampSize - 1) {
|
|
ALOGW("%s: Input time is invalid", __FUNCTION__);
|
|
return false;
|
|
}
|
|
|
|
const ExifTag timeTag = static_cast<ExifTag>(EXIF_TAG_GPS_TIME_STAMP);
|
|
entry = addVariableLengthEntry(EXIF_IFD_GPS, timeTag, EXIF_FORMAT_RATIONAL, 3,
|
|
3 * sizeof(ExifRational));
|
|
if (!entry) {
|
|
ALOGE("%s: Adding GPSTimeStamp exif entry failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
exif_set_rational(entry->data, EXIF_BYTE_ORDER_INTEL,
|
|
{static_cast<ExifLong>(t.tm_hour), 1});
|
|
exif_set_rational(entry->data + sizeof(ExifRational), EXIF_BYTE_ORDER_INTEL,
|
|
{static_cast<ExifLong>(t.tm_min), 1});
|
|
exif_set_rational(entry->data + 2 * sizeof(ExifRational),
|
|
EXIF_BYTE_ORDER_INTEL,
|
|
{static_cast<ExifLong>(t.tm_sec), 1});
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setImageHeight(uint32_t length) {
|
|
SET_SHORT(EXIF_IFD_0, EXIF_TAG_IMAGE_LENGTH, length);
|
|
SET_LONG(EXIF_IFD_EXIF, EXIF_TAG_PIXEL_Y_DIMENSION, length);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setImageWidth(uint32_t width) {
|
|
SET_SHORT(EXIF_IFD_0, EXIF_TAG_IMAGE_WIDTH, width);
|
|
SET_LONG(EXIF_IFD_EXIF, EXIF_TAG_PIXEL_X_DIMENSION, width);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setIsoSpeedRating(uint16_t iso_speed_ratings) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_ISO_SPEED_RATINGS, iso_speed_ratings);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setLightSource(uint16_t light_source) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_LIGHT_SOURCE, light_source);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setMaxAperture(uint32_t numerator, uint32_t denominator) {
|
|
SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_MAX_APERTURE_VALUE, numerator,
|
|
denominator);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setMeteringMode(uint16_t metering_mode) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_METERING_MODE, metering_mode);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setOrientation(uint16_t orientation) {
|
|
/*
|
|
* Orientation value:
|
|
* 1 2 3 4 5 6 7 8
|
|
*
|
|
* 888888 888888 88 88 8888888888 88 88 8888888888
|
|
* 88 88 88 88 88 88 88 88 88 88 88 88
|
|
* 8888 8888 8888 8888 88 8888888888 8888888888 88
|
|
* 88 88 88 88
|
|
* 88 88 888888 888888
|
|
*/
|
|
int value = 1;
|
|
switch (orientation) {
|
|
case 90:
|
|
value = 6;
|
|
break;
|
|
case 180:
|
|
value = 3;
|
|
break;
|
|
case 270:
|
|
value = 8;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
SET_SHORT(EXIF_IFD_0, EXIF_TAG_ORIENTATION, value);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setResolutionUnit(uint16_t resolution_unit) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_RESOLUTION_UNIT, resolution_unit);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setSaturation(uint16_t saturation) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_SATURATION, saturation);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setSceneCaptureType(uint16_t type) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_SCENE_CAPTURE_TYPE, type);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setSharpness(uint16_t sharpness) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_SHARPNESS, sharpness);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setShutterSpeed(int32_t numerator, int32_t denominator) {
|
|
SET_SRATIONAL(EXIF_IFD_EXIF, EXIF_TAG_SHUTTER_SPEED_VALUE, numerator,
|
|
denominator);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setSubjectDistance(uint32_t numerator, uint32_t denominator) {
|
|
SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_SUBJECT_DISTANCE, numerator,
|
|
denominator);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setSubsecTime(const std::string& subsec_time) {
|
|
SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_SUB_SEC_TIME, EXIF_FORMAT_ASCII,
|
|
subsec_time);
|
|
SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_SUB_SEC_TIME_ORIGINAL, EXIF_FORMAT_ASCII,
|
|
subsec_time);
|
|
SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_SUB_SEC_TIME_DIGITIZED, EXIF_FORMAT_ASCII,
|
|
subsec_time);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setWhiteBalance(uint16_t white_balance) {
|
|
SET_SHORT(EXIF_IFD_EXIF, EXIF_TAG_WHITE_BALANCE, white_balance);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setXResolution(uint32_t numerator, uint32_t denominator) {
|
|
SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_X_RESOLUTION, numerator, denominator);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setYCbCrPositioning(uint16_t ycbcr_positioning) {
|
|
SET_SHORT(EXIF_IFD_0, EXIF_TAG_YCBCR_POSITIONING, ycbcr_positioning);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setYResolution(uint32_t numerator, uint32_t denominator) {
|
|
SET_RATIONAL(EXIF_IFD_EXIF, EXIF_TAG_Y_RESOLUTION, numerator, denominator);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::generateApp1(const void* thumbnail_buffer, uint32_t size) {
|
|
destroyApp1();
|
|
exif_data_->data = const_cast<uint8_t*>(static_cast<const uint8_t*>(thumbnail_buffer));
|
|
exif_data_->size = size;
|
|
// Save the result into |app1_buffer_|.
|
|
exif_data_save_data(exif_data_, &app1_buffer_, &app1_length_);
|
|
if (!app1_length_) {
|
|
ALOGE("%s: Allocate memory for app1_buffer_ failed", __FUNCTION__);
|
|
return false;
|
|
}
|
|
/*
|
|
* The JPEG segment size is 16 bits in spec. The size of APP1 segment should
|
|
* be smaller than 65533 because there are two bytes for segment size field.
|
|
*/
|
|
if (app1_length_ > 65533) {
|
|
destroyApp1();
|
|
ALOGE("%s: The size of APP1 segment is too large", __FUNCTION__);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
const uint8_t* ExifUtilsImpl::getApp1Buffer() {
|
|
return app1_buffer_;
|
|
}
|
|
|
|
unsigned int ExifUtilsImpl::getApp1Length() {
|
|
return app1_length_;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setExifVersion(const std::string& exif_version) {
|
|
SET_STRING(EXIF_IFD_EXIF, EXIF_TAG_EXIF_VERSION, EXIF_FORMAT_UNDEFINED, exif_version);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setMake(const std::string& make) {
|
|
SET_STRING(EXIF_IFD_0, EXIF_TAG_MAKE, EXIF_FORMAT_ASCII, make);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setModel(const std::string& model) {
|
|
SET_STRING(EXIF_IFD_0, EXIF_TAG_MODEL, EXIF_FORMAT_ASCII, model);
|
|
return true;
|
|
}
|
|
|
|
void ExifUtilsImpl::reset() {
|
|
destroyApp1();
|
|
if (exif_data_) {
|
|
/*
|
|
* Since we decided to ignore the original APP1, we are sure that there is
|
|
* no thumbnail allocated by libexif. |exif_data_->data| is actually
|
|
* allocated by JpegCompressor. sets |exif_data_->data| to nullptr to
|
|
* prevent exif_data_unref() destroy it incorrectly.
|
|
*/
|
|
exif_data_->data = nullptr;
|
|
exif_data_->size = 0;
|
|
exif_data_unref(exif_data_);
|
|
exif_data_ = nullptr;
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<ExifEntry> ExifUtilsImpl::addVariableLengthEntry(ExifIfd ifd,
|
|
ExifTag tag,
|
|
ExifFormat format,
|
|
uint64_t components,
|
|
unsigned int size) {
|
|
// Remove old entry if exists.
|
|
exif_content_remove_entry(exif_data_->ifd[ifd],
|
|
exif_content_get_entry(exif_data_->ifd[ifd], tag));
|
|
ExifMem* mem = exif_mem_new_default();
|
|
if (!mem) {
|
|
ALOGE("%s: Allocate memory for exif entry failed", __FUNCTION__);
|
|
return nullptr;
|
|
}
|
|
std::unique_ptr<ExifEntry> entry(exif_entry_new_mem(mem));
|
|
if (!entry) {
|
|
ALOGE("%s: Allocate memory for exif entry failed", __FUNCTION__);
|
|
exif_mem_unref(mem);
|
|
return nullptr;
|
|
}
|
|
void* tmpBuffer = exif_mem_alloc(mem, size);
|
|
if (!tmpBuffer) {
|
|
ALOGE("%s: Allocate memory for exif entry failed", __FUNCTION__);
|
|
exif_mem_unref(mem);
|
|
return nullptr;
|
|
}
|
|
|
|
entry->data = static_cast<unsigned char*>(tmpBuffer);
|
|
entry->tag = tag;
|
|
entry->format = format;
|
|
entry->components = components;
|
|
entry->size = size;
|
|
|
|
exif_content_add_entry(exif_data_->ifd[ifd], entry.get());
|
|
exif_mem_unref(mem);
|
|
|
|
return entry;
|
|
}
|
|
|
|
std::unique_ptr<ExifEntry> ExifUtilsImpl::addEntry(ExifIfd ifd, ExifTag tag) {
|
|
std::unique_ptr<ExifEntry> entry(exif_content_get_entry(exif_data_->ifd[ifd], tag));
|
|
if (entry) {
|
|
// exif_content_get_entry() won't ref the entry, so we ref here.
|
|
exif_entry_ref(entry.get());
|
|
return entry;
|
|
}
|
|
entry.reset(exif_entry_new());
|
|
if (!entry) {
|
|
ALOGE("%s: Allocate memory for exif entry failed", __FUNCTION__);
|
|
return nullptr;
|
|
}
|
|
entry->tag = tag;
|
|
exif_content_add_entry(exif_data_->ifd[ifd], entry.get());
|
|
exif_entry_initialize(entry.get(), tag);
|
|
return entry;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setShort(ExifIfd ifd,
|
|
ExifTag tag,
|
|
uint16_t value,
|
|
const std::string& msg) {
|
|
std::unique_ptr<ExifEntry> entry = addEntry(ifd, tag);
|
|
if (!entry) {
|
|
ALOGE("%s: Adding '%s' entry failed", __FUNCTION__, msg.c_str());
|
|
return false;
|
|
}
|
|
exif_set_short(entry->data, EXIF_BYTE_ORDER_INTEL, value);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setLong(ExifIfd ifd,
|
|
ExifTag tag,
|
|
uint32_t value,
|
|
const std::string& msg) {
|
|
std::unique_ptr<ExifEntry> entry = addEntry(ifd, tag);
|
|
if (!entry) {
|
|
ALOGE("%s: Adding '%s' entry failed", __FUNCTION__, msg.c_str());
|
|
return false;
|
|
}
|
|
exif_set_long(entry->data, EXIF_BYTE_ORDER_INTEL, value);
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setRational(ExifIfd ifd,
|
|
ExifTag tag,
|
|
uint32_t numerator,
|
|
uint32_t denominator,
|
|
const std::string& msg) {
|
|
std::unique_ptr<ExifEntry> entry = addEntry(ifd, tag);
|
|
if (!entry) {
|
|
ALOGE("%s: Adding '%s' entry failed", __FUNCTION__, msg.c_str());
|
|
return false;
|
|
}
|
|
exif_set_rational(entry->data, EXIF_BYTE_ORDER_INTEL,
|
|
{numerator, denominator});
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setSRational(ExifIfd ifd,
|
|
ExifTag tag,
|
|
int32_t numerator,
|
|
int32_t denominator,
|
|
const std::string& msg) {
|
|
std::unique_ptr<ExifEntry> entry = addEntry(ifd, tag);
|
|
if (!entry) {
|
|
ALOGE("%s: Adding '%s' entry failed", __FUNCTION__, msg.c_str());
|
|
return false;
|
|
}
|
|
exif_set_srational(entry->data, EXIF_BYTE_ORDER_INTEL,
|
|
{numerator, denominator});
|
|
return true;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setString(ExifIfd ifd,
|
|
ExifTag tag,
|
|
ExifFormat format,
|
|
const std::string& buffer,
|
|
const std::string& msg) {
|
|
size_t entry_size = buffer.length();
|
|
// Since the exif format is undefined, NULL termination is not necessary.
|
|
if (format == EXIF_FORMAT_ASCII) {
|
|
entry_size++;
|
|
}
|
|
std::unique_ptr<ExifEntry> entry =
|
|
addVariableLengthEntry(ifd, tag, format, entry_size, entry_size);
|
|
if (!entry) {
|
|
ALOGE("%s: Adding '%s' entry failed", __FUNCTION__, msg.c_str());
|
|
return false;
|
|
}
|
|
memcpy(entry->data, buffer.c_str(), entry_size);
|
|
return true;
|
|
}
|
|
|
|
void ExifUtilsImpl::destroyApp1() {
|
|
/*
|
|
* Since there is no API to access ExifMem in ExifData->priv, we use free
|
|
* here, which is the default free function in libexif. See
|
|
* exif_data_save_data() for detail.
|
|
*/
|
|
free(app1_buffer_);
|
|
app1_buffer_ = nullptr;
|
|
app1_length_ = 0;
|
|
}
|
|
|
|
bool ExifUtilsImpl::setFromMetadata(const CameraMetadata& metadata,
|
|
const size_t imageWidth,
|
|
const size_t imageHeight) {
|
|
// How precise the float-to-rational conversion for EXIF tags would be.
|
|
constexpr int kRationalPrecision = 10000;
|
|
if (!setImageWidth(imageWidth) ||
|
|
!setImageHeight(imageHeight)) {
|
|
ALOGE("%s: setting image resolution failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
|
|
struct timespec tp;
|
|
struct tm time_info;
|
|
bool time_available = clock_gettime(CLOCK_REALTIME, &tp) != -1;
|
|
localtime_r(&tp.tv_sec, &time_info);
|
|
if (!setDateTime(time_info)) {
|
|
ALOGE("%s: setting data time failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
|
|
float focal_length;
|
|
camera_metadata_ro_entry entry = metadata.find(ANDROID_LENS_FOCAL_LENGTH);
|
|
if (entry.count) {
|
|
focal_length = entry.data.f[0];
|
|
|
|
if (!setFocalLength(
|
|
static_cast<uint32_t>(focal_length * kRationalPrecision),
|
|
kRationalPrecision)) {
|
|
ALOGE("%s: setting focal length failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
} else {
|
|
ALOGV("%s: Cannot find focal length in metadata.", __FUNCTION__);
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_JPEG_GPS_COORDINATES)) {
|
|
entry = metadata.find(ANDROID_JPEG_GPS_COORDINATES);
|
|
if (entry.count < 3) {
|
|
ALOGE("%s: Gps coordinates in metadata is not complete.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
if (!setGpsLatitude(entry.data.d[0])) {
|
|
ALOGE("%s: setting gps latitude failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
if (!setGpsLongitude(entry.data.d[1])) {
|
|
ALOGE("%s: setting gps longitude failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
if (!setGpsAltitude(entry.data.d[2])) {
|
|
ALOGE("%s: setting gps altitude failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_JPEG_GPS_PROCESSING_METHOD)) {
|
|
entry = metadata.find(ANDROID_JPEG_GPS_PROCESSING_METHOD);
|
|
std::string method_str(reinterpret_cast<const char*>(entry.data.u8));
|
|
if (!setGpsProcessingMethod(method_str)) {
|
|
ALOGE("%s: setting gps processing method failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (time_available && metadata.exists(ANDROID_JPEG_GPS_TIMESTAMP)) {
|
|
entry = metadata.find(ANDROID_JPEG_GPS_TIMESTAMP);
|
|
time_t timestamp = static_cast<time_t>(entry.data.i64[0]);
|
|
if (gmtime_r(×tamp, &time_info)) {
|
|
if (!setGpsTimestamp(time_info)) {
|
|
ALOGE("%s: setting gps timestamp failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
} else {
|
|
ALOGE("%s: Time tranformation failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_JPEG_ORIENTATION)) {
|
|
entry = metadata.find(ANDROID_JPEG_ORIENTATION);
|
|
if (!setOrientation(entry.data.i32[0])) {
|
|
ALOGE("%s: setting orientation failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_SENSOR_EXPOSURE_TIME)) {
|
|
entry = metadata.find(ANDROID_SENSOR_EXPOSURE_TIME);
|
|
// int64_t of nanoseconds
|
|
if (!setExposureTime(entry.data.i64[0],1000000000u)) {
|
|
ALOGE("%s: setting exposure time failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_LENS_APERTURE)) {
|
|
const int kAperturePrecision = 10000;
|
|
entry = metadata.find(ANDROID_LENS_APERTURE);
|
|
if (!setFNumber(entry.data.f[0] * kAperturePrecision,
|
|
kAperturePrecision)) {
|
|
ALOGE("%s: setting F number failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_FLASH_INFO_AVAILABLE)) {
|
|
entry = metadata.find(ANDROID_FLASH_INFO_AVAILABLE);
|
|
if (entry.data.u8[0] == ANDROID_FLASH_INFO_AVAILABLE_FALSE) {
|
|
const uint32_t kNoFlashFunction = 0x20;
|
|
if (!setFlash(kNoFlashFunction)) {
|
|
ALOGE("%s: setting flash failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
} else {
|
|
ALOGE("%s: Unsupported flash info: %d",__FUNCTION__, entry.data.u8[0]);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (metadata.exists(ANDROID_CONTROL_AWB_MODE)) {
|
|
entry = metadata.find(ANDROID_CONTROL_AWB_MODE);
|
|
if (entry.data.u8[0] == ANDROID_CONTROL_AWB_MODE_AUTO) {
|
|
const uint16_t kAutoWhiteBalance = 0;
|
|
if (!setWhiteBalance(kAutoWhiteBalance)) {
|
|
ALOGE("%s: setting white balance failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
} else {
|
|
ALOGE("%s: Unsupported awb mode: %d", __FUNCTION__, entry.data.u8[0]);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (time_available) {
|
|
char str[4];
|
|
if (snprintf(str, sizeof(str), "%03ld", tp.tv_nsec / 1000000) < 0) {
|
|
ALOGE("%s: Subsec is invalid: %ld", __FUNCTION__, tp.tv_nsec);
|
|
return false;
|
|
}
|
|
if (!setSubsecTime(std::string(str))) {
|
|
ALOGE("%s: setting subsec time failed.", __FUNCTION__);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace helper
|
|
} // namespace V1_0
|
|
} // namespace common
|
|
} // namespace camera
|
|
} // namespace hardware
|
|
} // namespace android
|