com.drew.metadata.exif.makernotes.OlympusRawInfoMakernoteDescriptor Maven / Gradle / Ivy
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/*
* Copyright 2002-2015 Drew Noakes
*
* 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.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.metadata.exif.makernotes;
import com.drew.lang.Rational;
import com.drew.lang.annotations.NotNull;
import com.drew.lang.annotations.Nullable;
import com.drew.metadata.TagDescriptor;
import static com.drew.metadata.exif.makernotes.OlympusRawInfoMakernoteDirectory.*;
/**
* Provides human-readable String representations of tag values stored in a {@link OlympusRawInfoMakernoteDirectory}.
*
* Some Description functions converted from Exiftool version 10.33 created by Phil Harvey
* http://www.sno.phy.queensu.ca/~phil/exiftool/
* lib\Image\ExifTool\Olympus.pm
*
* @author Kevin Mott https://github.com/kwhopper
* @author Drew Noakes https://drewnoakes.com
*/
@SuppressWarnings("WeakerAccess")
public class OlympusRawInfoMakernoteDescriptor extends TagDescriptor
{
public OlympusRawInfoMakernoteDescriptor(@NotNull OlympusRawInfoMakernoteDirectory directory)
{
super(directory);
}
@Override
@Nullable
public String getDescription(int tagType)
{
switch (tagType) {
case TagRawInfoVersion:
return getVersionBytesDescription(TagRawInfoVersion, 4);
case TagColorMatrix2:
return getColorMatrix2Description();
case TagYCbCrCoefficients:
return getYCbCrCoefficientsDescription();
case TagLightSource:
return getOlympusLightSourceDescription();
default:
return super.getDescription(tagType);
}
}
@Nullable
public String getColorMatrix2Description()
{
int[] values = _directory.getIntArray(TagColorMatrix2);
if (values == null)
return null;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < values.length; i++) {
sb.append((short)values[i]);
if (i < values.length - 1)
sb.append(" ");
}
return sb.length() == 0 ? null : sb.toString();
}
@Nullable
public String getYCbCrCoefficientsDescription()
{
int[] values = _directory.getIntArray(TagYCbCrCoefficients);
if (values == null)
return null;
Rational[] ret = new Rational[values.length / 2];
for(int i = 0; i < values.length / 2; i++)
{
ret[i] = new Rational((short)values[2*i], (short)values[2*i + 1]);
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < ret.length; i++) {
sb.append(ret[i].doubleValue());
if (i < ret.length - 1)
sb.append(" ");
}
return sb.length() == 0 ? null : sb.toString();
}
@Nullable
public String getOlympusLightSourceDescription()
{
Integer value = _directory.getInteger(TagLightSource);
if (value == null)
return null;
switch (value.shortValue())
{
case 0:
return "Unknown";
case 16:
return "Shade";
case 17:
return "Cloudy";
case 18:
return "Fine Weather";
case 20:
return "Tungsten (Incandescent)";
case 22:
return "Evening Sunlight";
case 33:
return "Daylight Fluorescent";
case 34:
return "Day White Fluorescent";
case 35:
return "Cool White Fluorescent";
case 36:
return "White Fluorescent";
case 256:
return "One Touch White Balance";
case 512:
return "Custom 1-4";
default:
return "Unknown (" + value + ")";
}
}
}