Snap for 4572138 from 33d5f666336f5fcccd23dd32a6b685b78dfb25a0 to pi-release (7e46d37f) · Commits · e / os / android_hardware_interfaces

camera/common/1.0/default/Android.bp

+6 −2

Original line number	Diff line number	Diff line
		@@ -7,7 +7,9 @@ cc_library_static {
		"CameraMetadata.cpp",
		"CameraParameters.cpp",
		"VendorTagDescriptor.cpp",
		"HandleImporter.cpp"],
		"HandleImporter.cpp",
		"Exif.cpp"
		],
		cflags: [
		"-Werror",
		"-Wextra",
		@@ -17,7 +19,9 @@ cc_library_static {
		"liblog",
		"libhardware",
		"libcamera_metadata",
		"android.hardware.graphics.mapper@2.0"],
		"android.hardware.graphics.mapper@2.0",
		"libexif",
		],
		include_dirs: ["system/media/private/camera/include"],
		export_include_dirs : ["include"]
		}

camera/common/1.0/default/Exif.cpp

0 → 100644

+1115 −0

File added.

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camera/common/1.0/default/include/Exif.h

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		/*
		* Copyright (C) 2018 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#ifndef ANDROID_HARDWARE_INTERFACES_CAMERA_COMMON_1_0_EXIF_H
		#define ANDROID_HARDWARE_INTERFACES_CAMERA_COMMON_1_0_EXIF_H

		#include "CameraMetadata.h"

		namespace android {
		namespace hardware {
		namespace camera {
		namespace common {
		namespace V1_0 {
		namespace helper {


		// This is based on the original ChromeOS ARC implementation of a V4L2 HAL

		// ExifUtils can generate APP1 segment with tags which caller set. ExifUtils can
		// also add a thumbnail in the APP1 segment if thumbnail size is specified.
		// ExifUtils can be reused with different images by calling initialize().
		//
		// Example of using this class :
		// std::unique_ptr<ExifUtils> utils(ExifUtils::Create());
		// utils->initialize();
		// ...
		// // Call ExifUtils functions to set Exif tags.
		// ...
		// utils->GenerateApp1(thumbnail_buffer, thumbnail_size);
		// unsigned int app1Length = utils->GetApp1Length();
		// uint8_t* app1Buffer = new uint8_t[app1Length];
		// memcpy(app1Buffer, utils->GetApp1Buffer(), app1Length);
		class ExifUtils {

		public:
		virtual ~ExifUtils();

		static ExifUtils* create();

		// Initialize() can be called multiple times. The setting of Exif tags will be
		// cleared.
		virtual bool initialize() = 0;

		// Set all known fields from a metadata structure
		virtual bool setFromMetadata(const CameraMetadata& metadata,
		const size_t imageWidth,
		const size_t imageHeight) = 0;

		// Sets the len aperture.
		// Returns false if memory allocation fails.
		virtual bool setAperture(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the value of brightness.
		// Returns false if memory allocation fails.
		virtual bool setBrightness(int32_t numerator, int32_t denominator) = 0;

		// Sets the color space.
		// Returns false if memory allocation fails.
		virtual bool setColorSpace(uint16_t color_space) = 0;

		// Sets the information to compressed data.
		// Returns false if memory allocation fails.
		virtual bool setComponentsConfiguration(const std::string& components_configuration) = 0;

		// Sets the compression scheme used for the image data.
		// Returns false if memory allocation fails.
		virtual bool setCompression(uint16_t compression) = 0;

		// Sets image contrast.
		// Returns false if memory allocation fails.
		virtual bool setContrast(uint16_t contrast) = 0;

		// Sets the date and time of image last modified. It takes local time. The
		// name of the tag is DateTime in IFD0.
		// Returns false if memory allocation fails.
		virtual bool setDateTime(const struct tm& t) = 0;

		// Sets the image description.
		// Returns false if memory allocation fails.
		virtual bool setDescription(const std::string& description) = 0;

		// Sets the digital zoom ratio. If the numerator is 0, it means digital zoom
		// was not used.
		// Returns false if memory allocation fails.
		virtual bool setDigitalZoomRatio(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the exposure bias.
		// Returns false if memory allocation fails.
		virtual bool setExposureBias(int32_t numerator, int32_t denominator) = 0;

		// Sets the exposure mode set when the image was shot.
		// Returns false if memory allocation fails.
		virtual bool setExposureMode(uint16_t exposure_mode) = 0;

		// Sets the program used by the camera to set exposure when the picture is
		// taken.
		// Returns false if memory allocation fails.
		virtual bool setExposureProgram(uint16_t exposure_program) = 0;

		// Sets the exposure time, given in seconds.
		// Returns false if memory allocation fails.
		virtual bool setExposureTime(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the status of flash.
		// Returns false if memory allocation fails.
		virtual bool setFlash(uint16_t flash) = 0;

		// Sets the F number.
		// Returns false if memory allocation fails.
		virtual bool setFNumber(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the focal length of lens used to take the image in millimeters.
		// Returns false if memory allocation fails.
		virtual bool setFocalLength(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the degree of overall image gain adjustment.
		// Returns false if memory allocation fails.
		virtual bool setGainControl(uint16_t gain_control) = 0;

		// Sets the altitude in meters.
		// Returns false if memory allocation fails.
		virtual bool setGpsAltitude(double altitude) = 0;

		// Sets the latitude with degrees minutes seconds format.
		// Returns false if memory allocation fails.
		virtual bool setGpsLatitude(double latitude) = 0;

		// Sets the longitude with degrees minutes seconds format.
		// Returns false if memory allocation fails.
		virtual bool setGpsLongitude(double longitude) = 0;

		// Sets GPS processing method.
		// Returns false if memory allocation fails.
		virtual bool setGpsProcessingMethod(const std::string& method) = 0;

		// Sets GPS date stamp and time stamp (atomic clock). It takes UTC time.
		// Returns false if memory allocation fails.
		virtual bool setGpsTimestamp(const struct tm& t) = 0;

		// Sets the height (number of rows) of main image.
		// Returns false if memory allocation fails.
		virtual bool setImageHeight(uint32_t length) = 0;

		// Sets the width (number of columns) of main image.
		// Returns false if memory allocation fails.
		virtual bool setImageWidth(uint32_t width) = 0;

		// Sets the ISO speed.
		// Returns false if memory allocation fails.
		virtual bool setIsoSpeedRating(uint16_t iso_speed_ratings) = 0;

		// Sets the kind of light source.
		// Returns false if memory allocation fails.
		virtual bool setLightSource(uint16_t light_source) = 0;

		// Sets the smallest F number of the lens.
		// Returns false if memory allocation fails.
		virtual bool setMaxAperture(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the metering mode.
		// Returns false if memory allocation fails.
		virtual bool setMeteringMode(uint16_t metering_mode) = 0;

		// Sets image orientation.
		// Returns false if memory allocation fails.
		virtual bool setOrientation(uint16_t orientation) = 0;

		// Sets the unit for measuring XResolution and YResolution.
		// Returns false if memory allocation fails.
		virtual bool setResolutionUnit(uint16_t resolution_unit) = 0;

		// Sets image saturation.
		// Returns false if memory allocation fails.
		virtual bool setSaturation(uint16_t saturation) = 0;

		// Sets the type of scene that was shot.
		// Returns false if memory allocation fails.
		virtual bool setSceneCaptureType(uint16_t type) = 0;

		// Sets image sharpness.
		// Returns false if memory allocation fails.
		virtual bool setSharpness(uint16_t sharpness) = 0;

		// Sets the shutter speed.
		// Returns false if memory allocation fails.
		virtual bool setShutterSpeed(int32_t numerator, int32_t denominator) = 0;

		// Sets the distance to the subject, given in meters.
		// Returns false if memory allocation fails.
		virtual bool setSubjectDistance(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the fractions of seconds for the <DateTime> tag.
		// Returns false if memory allocation fails.
		virtual bool setSubsecTime(const std::string& subsec_time) = 0;

		// Sets the white balance mode set when the image was shot.
		// Returns false if memory allocation fails.
		virtual bool setWhiteBalance(uint16_t white_balance) = 0;

		// Sets the number of pixels per resolution unit in the image width.
		// Returns false if memory allocation fails.
		virtual bool setXResolution(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the position of chrominance components in relation to the luminance
		// component.
		// Returns false if memory allocation fails.
		virtual bool setYCbCrPositioning(uint16_t ycbcr_positioning) = 0;

		// Sets the number of pixels per resolution unit in the image length.
		// Returns false if memory allocation fails.
		virtual bool setYResolution(uint32_t numerator, uint32_t denominator) = 0;

		// Sets the manufacturer of camera.
		// Returns false if memory allocation fails.
		virtual bool setMake(const std::string& make) = 0;

		// Sets the model number of camera.
		// Returns false if memory allocation fails.
		virtual bool setModel(const std::string& model) = 0;

		// Generates APP1 segment.
		// Returns false if generating APP1 segment fails.
		virtual bool generateApp1(const void* thumbnail_buffer, uint32_t size) = 0;

		// Gets buffer of APP1 segment. This method must be called only after calling
		// GenerateAPP1().
		virtual const uint8_t* getApp1Buffer() = 0;

		// Gets length of APP1 segment. This method must be called only after calling
		// GenerateAPP1().
		virtual unsigned int getApp1Length() = 0;
		};


		} // namespace helper
		} // namespace V1_0
		} // namespace common
		} // namespace camera
		} // namespace hardware
		} // namespace android


		#endif // ANDROID_HARDWARE_INTERFACES_CAMERA_COMMON_1_0_EXIF_H