ExifTag.java
/*
* Copyright 2020 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.
*/
package androidx.camera.core.impl.utils;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_DOUBLE;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_SINGLE;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_SLONG;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_SSHORT;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_ULONG;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_UNDEFINED;
import static androidx.camera.core.impl.utils.ExifAttribute.IFD_FORMAT_USHORT;
import androidx.exifinterface.media.ExifInterface;
/**
* This class stores information of an EXIF tag. For more information about
* defined EXIF tags, please read the Jeita EXIF 2.2 standard.
*
* This class was pulled from the {@link ExifInterface} class.
*
* @see ExifInterface
*/
class ExifTag {
public final int number;
public final String name;
public final int primaryFormat;
public final int secondaryFormat;
@SuppressWarnings("WeakerAccess") /* synthetic access */
ExifTag(String name, int number, int format) {
this.name = name;
this.number = number;
this.primaryFormat = format;
this.secondaryFormat = -1;
}
@SuppressWarnings("WeakerAccess") /* synthetic access */
ExifTag(String name, int number, int primaryFormat, int secondaryFormat) {
this.name = name;
this.number = number;
this.primaryFormat = primaryFormat;
this.secondaryFormat = secondaryFormat;
}
@SuppressWarnings("WeakerAccess") /* synthetic access */
boolean isFormatCompatible(int format) {
if (primaryFormat == IFD_FORMAT_UNDEFINED || format == IFD_FORMAT_UNDEFINED) {
return true;
} else if (primaryFormat == format || secondaryFormat == format) {
return true;
} else if ((primaryFormat == IFD_FORMAT_ULONG || secondaryFormat == IFD_FORMAT_ULONG)
&& format == IFD_FORMAT_USHORT) {
return true;
} else if ((primaryFormat == IFD_FORMAT_SLONG || secondaryFormat == IFD_FORMAT_SLONG)
&& format == IFD_FORMAT_SSHORT) {
return true;
} else return (primaryFormat == IFD_FORMAT_DOUBLE || secondaryFormat == IFD_FORMAT_DOUBLE)
&& format == IFD_FORMAT_SINGLE;
}
}