com.drew.metadata.exif.ExifIFD0Directory Java Examples

public void fixOrientation() throws ImageMutationFailedException {
    try {
        Metadata metadata = originalImageMetaData();

        ExifIFD0Directory exifIFD0Directory = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
        if (exifIFD0Directory == null) {
            return;
        } else if (exifIFD0Directory.containsTag(ExifIFD0Directory.TAG_ORIENTATION)) {
            int exifOrientation = exifIFD0Directory.getInt(ExifIFD0Directory.TAG_ORIENTATION);
            if(exifOrientation != 1) {
                rotate(exifOrientation);
                exifIFD0Directory.setInt(ExifIFD0Directory.TAG_ORIENTATION, 1);
            }
        }
    } catch (ImageProcessingException | IOException | MetadataException e) {
        throw new ImageMutationFailedException("failed to fix orientation", e);
    }
}
 

@Test
public void testOrderOfDifferentTypes()
{
    Metadata metadata = new Metadata();
    Directory directory1 = new ExifSubIFDDirectory();
    Directory directory2 = new ExifThumbnailDirectory();
    Directory directory3 = new ExifIFD0Directory();

    metadata.addDirectory(directory1);
    metadata.addDirectory(directory2);
    metadata.addDirectory(directory3);

    List<Directory> directories = new ArrayList<Directory>();
    for (Directory directory : metadata.getDirectories()) {
        directories.add(directory);
    }

    assertEquals(3, directories.size());
    assertSame(directory1, directories.toArray()[0]);
    assertSame(directory2, directories.toArray()[1]);
    assertSame(directory3, directories.toArray()[2]);
}
 

static Set<Orientation> imageOrientationsOf(ImageMetadata metadata) {

      String exifIFD0DirName = new ExifIFD0Directory().getName();

      Tag[] tags = Arrays.stream(metadata.getDirectories())
         .filter(dir -> dir.getName().equals(exifIFD0DirName))
         .findFirst()
         .map(Directory::getTags)
         .orElseGet(() -> new Tag[0]);

      Set<Tag> tag274s = Arrays.stream(tags).filter(t -> t.getType() == 274).collect(Collectors.toSet());

      if (tag274s.size() == 1) {
         return tag274s.stream()
            .map(OrientationTools::fromTag)
            .collect(Collectors.toSet());
      } else {
         return tag274s.stream()
            .filter(t -> t.getName().toLowerCase().equals("orientation"))
            .map(OrientationTools::fromTag)
            .collect(Collectors.toSet());
      }
   }
 

Row(@NotNull File file, @NotNull Metadata metadata, @NotNull String relativePath)
{
    this.file = file;
    this.metadata = metadata;
    this.relativePath = relativePath;

    ExifIFD0Directory ifd0Dir = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
    ExifSubIFDDirectory subIfdDir = metadata.getFirstDirectoryOfType(ExifSubIFDDirectory.class);
    ExifThumbnailDirectory thumbDir = metadata.getFirstDirectoryOfType(ExifThumbnailDirectory.class);
    if (ifd0Dir != null) {
        manufacturer = ifd0Dir.getDescription(ExifIFD0Directory.TAG_MAKE);
        model = ifd0Dir.getDescription(ExifIFD0Directory.TAG_MODEL);
    }
    boolean hasMakernoteData = false;
    if (subIfdDir != null) {
        exifVersion = subIfdDir.getDescription(ExifSubIFDDirectory.TAG_EXIF_VERSION);
        hasMakernoteData = subIfdDir.containsTag(ExifSubIFDDirectory.TAG_MAKERNOTE);
    }
    if (thumbDir != null) {
        Integer width = thumbDir.getInteger(ExifThumbnailDirectory.TAG_IMAGE_WIDTH);
        Integer height = thumbDir.getInteger(ExifThumbnailDirectory.TAG_IMAGE_HEIGHT);
        thumbnail = width != null && height != null
            ? String.format("Yes (%s x %s)", width, height)
            : "Yes";
    }
    for (Directory directory : metadata.getDirectories()) {
        if (directory.getClass().getName().contains("Makernote")) {
            makernote = directory.getName().replace("Makernote", "").trim();
            break;
        }
    }
    if (makernote == null) {
        makernote = hasMakernoteData ? "(Unknown)" : "N/A";
    }
}
 

@Test
public void testToString()
{
    Directory directory = new ExifIFD0Directory();
    assertEquals("Exif IFD0 Directory (0 tags)", directory.toString());
    directory.setString(1, "Tag 1");
    assertEquals("Exif IFD0 Directory (1 tag)", directory.toString());
    directory.setString(2, "Tag 2");
    assertEquals("Exif IFD0 Directory (2 tags)", directory.toString());
}
 

@Test
public void testToString()
{
    Metadata metadata = new Metadata();
    assertEquals("Metadata (0 directories)", metadata.toString());

    metadata.addDirectory(new ExifIFD0Directory());
    assertEquals("Metadata (1 directory)", metadata.toString());

    metadata.addDirectory(new ExifSubIFDDirectory());
    assertEquals("Metadata (2 directories)", metadata.toString());
}
 

private void processDirectory(final MapWriter writer, final Directory directory, final Metadata metadata) {
  for (Tag tag : directory.getTags()) {
    try {
      final int tagType = tag.getTagType();
      Object value;
      if (descriptive || isDescriptionTag(directory, tagType)) {
        value = directory.getDescription(tagType);
        if (directory instanceof PngDirectory) {
          if (((PngDirectory) directory).getPngChunkType().areMultipleAllowed()) {
            value = new String[] { (String) value };
          }
        }
      } else {
        value = directory.getObject(tagType);
        if (directory instanceof ExifIFD0Directory && tagType == ExifIFD0Directory.TAG_DATETIME) {
          ExifSubIFDDirectory exifSubIFDDir = metadata.getFirstDirectoryOfType(ExifSubIFDDirectory.class);
          String subsecond = null;
          if (exifSubIFDDir != null) {
            subsecond = exifSubIFDDir.getString(ExifSubIFDDirectory.TAG_SUBSECOND_TIME);
          }
          value = directory.getDate(tagType, subsecond, timeZone);
        } else if (directory instanceof ExifSubIFDDirectory) {
          if (tagType == ExifSubIFDDirectory.TAG_DATETIME_ORIGINAL) {
            value = ((ExifSubIFDDirectory) directory).getDateOriginal(timeZone);
          } else if (tagType == ExifSubIFDDirectory.TAG_DATETIME_DIGITIZED) {
            value = ((ExifSubIFDDirectory) directory).getDateDigitized(timeZone);
          }
        } else if (directory instanceof GpsDirectory) {
          if (tagType == GpsDirectory.TAG_LATITUDE) {
            value = ((GpsDirectory) directory).getGeoLocation().getLatitude();
          } else if (tagType == GpsDirectory.TAG_LONGITUDE) {
            value = ((GpsDirectory) directory).getGeoLocation().getLongitude();
          }
        }
        if (isVersionTag(directory, tagType)) {
          value = directory.getString(tagType, "US-ASCII");
        } else if (isDateTag(directory, tagType)) {
          value = directory.getDate(tagType, timeZone);
        }
      }
      writeValue(writer, formatName(tag.getTagName()), value);
    } catch (Exception e) {
      // simply skip this tag
    }
  }
}
 

private static int readExifOrientation(Metadata metadata) throws MetadataException {
    Directory directory = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
    return directory.getInt(ExifIFD0Directory.TAG_ORIENTATION);
}