1 | /*
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2 | * Copyright 2002-2015 Drew Noakes
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | *
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16 | * More information about this project is available at:
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17 | *
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18 | * https://drewnoakes.com/code/exif/
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19 | * https://github.com/drewnoakes/metadata-extractor
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20 | */
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21 | package com.drew.metadata.exif.makernotes;
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22 |
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23 | import com.drew.lang.Rational;
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24 | import com.drew.lang.annotations.NotNull;
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25 | import com.drew.lang.annotations.Nullable;
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26 | import com.drew.metadata.TagDescriptor;
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27 |
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28 | import static com.drew.metadata.exif.makernotes.OlympusRawInfoMakernoteDirectory.*;
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29 |
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30 | /**
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31 | * Provides human-readable String representations of tag values stored in a {@link OlympusRawInfoMakernoteDirectory}.
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32 | * <p>
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33 | * Some Description functions converted from Exiftool version 10.33 created by Phil Harvey
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34 | * http://www.sno.phy.queensu.ca/~phil/exiftool/
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35 | * lib\Image\ExifTool\Olympus.pm
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36 | *
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37 | * @author Kevin Mott https://github.com/kwhopper
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38 | * @author Drew Noakes https://drewnoakes.com
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39 | */
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40 | @SuppressWarnings("WeakerAccess")
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41 | public class OlympusRawInfoMakernoteDescriptor extends TagDescriptor<OlympusRawInfoMakernoteDirectory>
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42 | {
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43 | public OlympusRawInfoMakernoteDescriptor(@NotNull OlympusRawInfoMakernoteDirectory directory)
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44 | {
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45 | super(directory);
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46 | }
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47 |
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48 | @Override
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49 | @Nullable
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50 | public String getDescription(int tagType)
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51 | {
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52 | switch (tagType) {
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53 | case TagRawInfoVersion:
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54 | return getVersionBytesDescription(TagRawInfoVersion, 4);
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55 | case TagColorMatrix2:
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56 | return getColorMatrix2Description();
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57 | case TagYCbCrCoefficients:
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58 | return getYCbCrCoefficientsDescription();
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59 | case TagLightSource:
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60 | return getOlympusLightSourceDescription();
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61 | default:
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62 | return super.getDescription(tagType);
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63 | }
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64 | }
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65 |
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66 | @Nullable
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67 | public String getColorMatrix2Description()
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68 | {
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69 | int[] values = _directory.getIntArray(TagColorMatrix2);
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70 | if (values == null)
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71 | return null;
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72 |
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73 | StringBuilder sb = new StringBuilder();
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74 | for (int i = 0; i < values.length; i++) {
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75 | sb.append((short)values[i]);
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76 | if (i < values.length - 1)
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77 | sb.append(" ");
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78 | }
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79 | return sb.length() == 0 ? null : sb.toString();
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80 | }
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81 |
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82 | @Nullable
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83 | public String getYCbCrCoefficientsDescription()
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84 | {
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85 | int[] values = _directory.getIntArray(TagYCbCrCoefficients);
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86 | if (values == null)
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87 | return null;
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88 |
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89 | Rational[] ret = new Rational[values.length / 2];
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90 | for(int i = 0; i < values.length / 2; i++)
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91 | {
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92 | ret[i] = new Rational((short)values[2*i], (short)values[2*i + 1]);
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93 | }
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94 |
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95 | StringBuilder sb = new StringBuilder();
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96 | for (int i = 0; i < ret.length; i++) {
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97 | sb.append(ret[i].doubleValue());
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98 | if (i < ret.length - 1)
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99 | sb.append(" ");
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100 | }
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101 | return sb.length() == 0 ? null : sb.toString();
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102 | }
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103 |
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104 | @Nullable
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105 | public String getOlympusLightSourceDescription()
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106 | {
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107 | Integer value = _directory.getInteger(TagLightSource);
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108 | if (value == null)
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109 | return null;
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110 |
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111 | switch (value.shortValue())
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112 | {
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113 | case 0:
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114 | return "Unknown";
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115 | case 16:
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116 | return "Shade";
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117 | case 17:
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118 | return "Cloudy";
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119 | case 18:
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120 | return "Fine Weather";
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121 | case 20:
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122 | return "Tungsten (Incandescent)";
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123 | case 22:
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124 | return "Evening Sunlight";
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125 | case 33:
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126 | return "Daylight Fluorescent";
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127 | case 34:
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128 | return "Day White Fluorescent";
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129 | case 35:
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130 | return "Cool White Fluorescent";
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131 | case 36:
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132 | return "White Fluorescent";
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133 | case 256:
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134 | return "One Touch White Balance";
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135 | case 512:
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136 | return "Custom 1-4";
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137 | default:
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138 | return "Unknown (" + value + ")";
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139 | }
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140 | }
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141 | }
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